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ca9bc441 | 1 | # configure.ac for GCC |
46f18e7b RK |
2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
7adcbafe | 4 | # Copyright (C) 1997-2022 Free Software Foundation, Inc. |
46f18e7b | 5 | |
1322177d | 6 | #This file is part of GCC. |
46f18e7b | 7 | |
1322177d LB |
8 | #GCC is free software; you can redistribute it and/or modify it under |
9 | #the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 10 | #Software Foundation; either version 3, or (at your option) any later |
1322177d | 11 | #version. |
46f18e7b | 12 | |
1322177d LB |
13 | #GCC is distributed in the hope that it will be useful, but WITHOUT |
14 | #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | #for more details. | |
46f18e7b RK |
17 | |
18 | #You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
19 | #along with GCC; see the file COPYING3. If not see |
20 | #<http://www.gnu.org/licenses/>. | |
46f18e7b | 21 | |
34a86c2b NN |
22 | # -------------------------------- |
23 | # Initialization and sanity checks | |
24 | # -------------------------------- | |
25 | ||
914c5af7 | 26 | AC_INIT |
e53b6e56 | 27 | AC_CONFIG_SRCDIR(tree.cc) |
b7cb92ad | 28 | AC_CONFIG_HEADER(auto-host.h:config.in) |
cdcc6a01 | 29 | |
9f18db39 PB |
30 | gcc_version=`cat $srcdir/BASE-VER` |
31 | ||
34a86c2b | 32 | # Determine the host, build, and target systems |
914c5af7 NN |
33 | AC_CANONICAL_BUILD |
34 | AC_CANONICAL_HOST | |
35 | AC_CANONICAL_TARGET | |
34a86c2b | 36 | |
47e62307 EB |
37 | # Determine the noncanonical host name, for Ada. |
38 | ACX_NONCANONICAL_HOST | |
39 | ||
caa55b1e | 40 | # Determine the noncanonical target name, for directory use. |
392765bf | 41 | ACX_NONCANONICAL_TARGET |
caa55b1e | 42 | |
85c64bbe BS |
43 | # Used for constructing correct paths for offload compilers. |
44 | real_target_noncanonical=${target_noncanonical} | |
45 | accel_dir_suffix= | |
46 | ||
4665e56c NN |
47 | # Determine the target- and build-specific subdirectories |
48 | GCC_TOPLEV_SUBDIRS | |
49 | ||
34a86c2b NN |
50 | # Set program_transform_name |
51 | AC_ARG_PROGRAM | |
46f18e7b | 52 | |
75a39864 JL |
53 | # Check for bogus environment variables. |
54 | # Test if LIBRARY_PATH contains the notation for the current directory | |
55 | # since this would lead to problems installing/building glibc. | |
56 | # LIBRARY_PATH contains the current directory if one of the following | |
57 | # is true: | |
58 | # - one of the terminals (":" and ";") is the first or last sign | |
59 | # - two terminals occur directly after each other | |
60 | # - the path contains an element with a dot in it | |
61 | AC_MSG_CHECKING(LIBRARY_PATH variable) | |
62 | changequote(,)dnl | |
63 | case ${LIBRARY_PATH} in | |
64 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
65 | library_path_setting="contains current directory" | |
66 | ;; | |
67 | *) | |
68 | library_path_setting="ok" | |
69 | ;; | |
70 | esac | |
71 | changequote([,])dnl | |
72 | AC_MSG_RESULT($library_path_setting) | |
73 | if test "$library_path_setting" != "ok"; then | |
74 | AC_MSG_ERROR([ | |
75 | *** LIBRARY_PATH shouldn't contain the current directory when | |
079bd08e | 76 | *** building gcc. Please change the environment variable |
75a39864 JL |
77 | *** and run configure again.]) |
78 | fi | |
79 | ||
80 | # Test if GCC_EXEC_PREFIX contains the notation for the current directory | |
81 | # since this would lead to problems installing/building glibc. | |
82 | # GCC_EXEC_PREFIX contains the current directory if one of the following | |
83 | # is true: | |
84 | # - one of the terminals (":" and ";") is the first or last sign | |
85 | # - two terminals occur directly after each other | |
86 | # - the path contains an element with a dot in it | |
87 | AC_MSG_CHECKING(GCC_EXEC_PREFIX variable) | |
88 | changequote(,)dnl | |
89 | case ${GCC_EXEC_PREFIX} in | |
90 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
91 | gcc_exec_prefix_setting="contains current directory" | |
92 | ;; | |
93 | *) | |
94 | gcc_exec_prefix_setting="ok" | |
95 | ;; | |
96 | esac | |
97 | changequote([,])dnl | |
98 | AC_MSG_RESULT($gcc_exec_prefix_setting) | |
99 | if test "$gcc_exec_prefix_setting" != "ok"; then | |
100 | AC_MSG_ERROR([ | |
101 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
079bd08e | 102 | *** building gcc. Please change the environment variable |
75a39864 JL |
103 | *** and run configure again.]) |
104 | fi | |
105 | ||
34a86c2b NN |
106 | # ----------- |
107 | # Directories | |
108 | # ----------- | |
109 | ||
110 | # Specify the local prefix | |
111 | local_prefix= | |
112 | AC_ARG_WITH(local-prefix, | |
b88ecf55 AS |
113 | [AS_HELP_STRING([--with-local-prefix=DIR], |
114 | [specifies directory to put local include])], | |
34a86c2b NN |
115 | [case "${withval}" in |
116 | yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;; | |
117 | no) ;; | |
118 | *) local_prefix=$with_local_prefix ;; | |
119 | esac]) | |
120 | ||
121 | # Default local prefix if it is empty | |
122 | if test x$local_prefix = x; then | |
123 | local_prefix=/usr/local | |
124 | fi | |
125 | ||
54b710be YR |
126 | AC_ARG_WITH([native-system-header-dir], |
127 | [ --with-native-system-header-dir=dir | |
128 | use dir as the directory to look for standard | |
129 | system header files in. Defaults to /usr/include.], | |
130 | [ | |
131 | case ${with_native_system_header_dir} in | |
132 | yes|no) AC_MSG_ERROR([bad value ${withval} given for --with-native-system-header-dir]) ;; | |
133 | /* | [[A-Za-z]]:[[\\/]]*) ;; | |
134 | *) AC_MSG_ERROR([--with-native-system-header-dir argument ${withval} must be an absolute directory]) ;; | |
135 | esac | |
136 | configured_native_system_header_dir="${withval}" | |
137 | ], [configured_native_system_header_dir=]) | |
138 | ||
139 | AC_ARG_WITH(build-sysroot, | |
140 | [AS_HELP_STRING([--with-build-sysroot=sysroot], | |
141 | [use sysroot as the system root during the build])], | |
142 | [if test x"$withval" != x ; then | |
143 | SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" | |
144 | fi], | |
145 | [SYSROOT_CFLAGS_FOR_TARGET=]) | |
146 | AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) | |
147 | ||
148 | if test "x$prefix" = xNONE; then | |
149 | test_prefix=/usr/local | |
150 | else | |
151 | test_prefix=$prefix | |
152 | fi | |
153 | if test "x$exec_prefix" = xNONE; then | |
154 | test_exec_prefix=$test_prefix | |
155 | else | |
156 | test_exec_prefix=$exec_prefix | |
157 | fi | |
158 | ||
159 | AC_ARG_WITH(sysroot, | |
160 | [AS_HELP_STRING([[--with-sysroot[=DIR]]], | |
161 | [search for usr/lib, usr/include, et al, within DIR])], | |
162 | [ | |
163 | case ${with_sysroot} in | |
164 | /) ;; | |
165 | */) with_sysroot=`echo $with_sysroot | sed 's,/$,,'` ;; | |
166 | esac | |
167 | case ${with_sysroot} in | |
168 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; | |
169 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; | |
170 | esac | |
171 | ||
172 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
173 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
174 | ||
175 | case ${TARGET_SYSTEM_ROOT} in | |
176 | "${test_prefix}"|"${test_prefix}/"*|\ | |
177 | "${test_exec_prefix}"|"${test_exec_prefix}/"*|\ | |
178 | '${prefix}'|'${prefix}/'*|\ | |
179 | '${exec_prefix}'|'${exec_prefix}/'*) | |
180 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" | |
181 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
182 | ;; | |
183 | esac | |
184 | ], [ | |
185 | TARGET_SYSTEM_ROOT= | |
186 | TARGET_SYSTEM_ROOT_DEFINE= | |
187 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' | |
188 | ]) | |
189 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
190 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
191 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
192 | ||
34a86c2b NN |
193 | # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only |
194 | # passed in by the toplevel make and thus we'd get different behavior | |
195 | # depending on where we built the sources. | |
196 | gcc_gxx_include_dir= | |
197 | # Specify the g++ header file directory | |
198 | AC_ARG_WITH(gxx-include-dir, | |
b88ecf55 AS |
199 | [AS_HELP_STRING([--with-gxx-include-dir=DIR], |
200 | [specifies directory to put g++ header files])], | |
34a86c2b NN |
201 | [case "${withval}" in |
202 | yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;; | |
203 | no) ;; | |
204 | *) gcc_gxx_include_dir=$with_gxx_include_dir ;; | |
205 | esac]) | |
206 | ||
b4d3485e EB |
207 | # If both --with-sysroot and --with-gxx-include-dir are passed, we interpolate |
208 | # the former in the latter and, upon success, compute gcc_gxx_include_dir as | |
209 | # relative to the sysroot. | |
210 | gcc_gxx_include_dir_add_sysroot=0 | |
211 | ||
0f57bf40 | 212 | # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. |
34a86c2b NN |
213 | if test x${gcc_gxx_include_dir} = x; then |
214 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
215 | gcc_gxx_include_dir='${libsubdir}/include/c++' | |
216 | else | |
0f57bf40 MM |
217 | libstdcxx_incdir='include/c++/$(version)' |
218 | if test x$host != x$target; then | |
219 | libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
220 | fi | |
15c723f3 | 221 | gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir" |
34a86c2b | 222 | fi |
b4d3485e | 223 | elif test "${with_sysroot+set}" = set; then |
17719d09 HS |
224 | gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'` |
225 | if test "${gcc_gxx_without_sysroot}"; then | |
b4d3485e | 226 | gcc_gxx_include_dir="${gcc_gxx_without_sysroot}" |
17719d09 HS |
227 | gcc_gxx_include_dir_add_sysroot=1 |
228 | fi | |
229 | fi | |
230 | ||
662b9c55 IS |
231 | # Configuration for an alternate set of C++ headers. |
232 | gcc_gxx_libcxx_include_dir= | |
233 | # Specify the alternate g++ header file directory | |
234 | AC_ARG_WITH(gxx-libcxx-include-dir, | |
235 | [AS_HELP_STRING([--with-gxx-libcxx-include-dir=DIR], | |
236 | [specifies directory to find libc++ header files])], | |
237 | [case "${withval}" in | |
238 | yes) AC_MSG_ERROR(bad value ${withval} given for libc++ include directory) ;; | |
239 | no) ;; | |
240 | *) gcc_gxx_libcxx_include_dir=$with_gxx_libcxx_include_dir ;; | |
241 | esac]) | |
242 | ||
243 | # If both --with-sysroot and --with-gxx-libcxx-include-dir are passed, we | |
244 | # check to see if the latter starts with the former and, upon success, compute | |
245 | # gcc_gxx_libcxx_include_dir as relative to the sysroot. | |
246 | gcc_gxx_libcxx_include_dir_add_sysroot=0 | |
247 | ||
248 | if test x${gcc_gxx_libcxx_include_dir} != x; then | |
249 | AC_DEFINE(ENABLE_STDLIB_OPTION, 1, | |
250 | [Define if the -stdlib= option should be enabled.]) | |
251 | else | |
252 | AC_DEFINE(ENABLE_STDLIB_OPTION, 0) | |
253 | fi | |
254 | # ??? This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. | |
255 | if test x${gcc_gxx_libcxx_include_dir} = x; then | |
256 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
257 | gcc_gxx_libcxx_include_dir='${libsubdir}/libc++_include/c++/v1' | |
258 | else | |
259 | libcxx_incdir='libc++_include/c++/$(version)/v1' | |
260 | if test x$host != x$target; then | |
261 | libcxx_incdir="$target_alias/$libcxx_incdir" | |
262 | fi | |
263 | gcc_gxx_libcxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libcxx_incdir" | |
264 | fi | |
265 | elif test "${with_sysroot+set}" = set; then | |
266 | gcc_gxx_libcxx_without_sysroot=`expr "${gcc_gxx_libcxx_include_dir}" : "${with_sysroot}"'\(.*\)'` | |
267 | if test "${gcc_gxx_libcxx_without_sysroot}"; then | |
268 | gcc_gxx_libcxx_include_dir="${gcc_gxx_libcxx_without_sysroot}" | |
269 | gcc_gxx_libcxx_include_dir_add_sysroot=1 | |
270 | fi | |
271 | fi | |
272 | ||
34a86c2b | 273 | AC_ARG_WITH(cpp_install_dir, |
b88ecf55 AS |
274 | [AC_HELP_STRING([--with-cpp-install-dir=DIR], |
275 | [install the user visible C preprocessor in DIR | |
276 | (relative to PREFIX) as well as PREFIX/bin])], | |
34a86c2b NN |
277 | [if test x$withval = xyes; then |
278 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
279 | elif test x$withval != xno; then | |
280 | cpp_install_dir=$withval | |
281 | fi]) | |
282 | ||
51b9ff45 KC |
283 | # We would like to our source tree to be readonly. However when releases or |
284 | # pre-releases are generated, the flex/bison generated files as well as the | |
285 | # various formats of manuals need to be included along with the rest of the | |
286 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
287 | # just that. | |
288 | ||
03787dfd KC |
289 | AC_MSG_CHECKING([whether to place generated files in the source directory]) |
290 | dnl generated-files-in-srcdir is disabled by default | |
291 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
b88ecf55 AS |
292 | [AS_HELP_STRING([--enable-generated-files-in-srcdir], |
293 | [put copies of generated files in source dir | |
294 | intended for creating source tarballs for users | |
295 | without texinfo bison or flex])], | |
03787dfd KC |
296 | generated_files_in_srcdir=$enableval, |
297 | generated_files_in_srcdir=no) | |
298 | ||
299 | AC_MSG_RESULT($generated_files_in_srcdir) | |
300 | ||
301 | if test "$generated_files_in_srcdir" = "yes"; then | |
302 | GENINSRC='' | |
03787dfd KC |
303 | else |
304 | GENINSRC='#' | |
03787dfd KC |
305 | fi |
306 | AC_SUBST(GENINSRC) | |
51b9ff45 | 307 | |
34a86c2b NN |
308 | # ------------------- |
309 | # Find default linker | |
310 | # ------------------- | |
46f18e7b RK |
311 | |
312 | # With GNU ld | |
313 | AC_ARG_WITH(gnu-ld, | |
b88ecf55 | 314 | [AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])], |
df6faf79 JW |
315 | gnu_ld_flag="$with_gnu_ld", |
316 | gnu_ld_flag=no) | |
46f18e7b | 317 | |
eb89c82f | 318 | case $target in |
3b5e8ee4 IS |
319 | *darwin*) |
320 | ld64_flag=yes # Darwin can only use a ld64-compatible linker. | |
321 | dsymutil_flag=yes # Darwin uses dsymutil to link debug. | |
322 | ;; | |
323 | *) | |
324 | ld64_flag=no | |
325 | dsymutil_flag=no | |
326 | ;; | |
eb89c82f IS |
327 | esac |
328 | ||
ab339d62 AO |
329 | # With pre-defined ld |
330 | AC_ARG_WITH(ld, | |
b88ecf55 | 331 | [AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])], |
3ccc3a56 AO |
332 | DEFAULT_LINKER="$with_ld") |
333 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
334 | if test ! -x "$DEFAULT_LINKER"; then | |
99c012a8 | 335 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
e154a394 | 336 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 | 337 | gnu_ld_flag=yes |
eb89c82f IS |
338 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep ld64- > /dev/null; then |
339 | ld64_flag=yes | |
ab339d62 | 340 | fi |
119d24d1 KG |
341 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
342 | [Define to enable the use of a default linker.]) | |
ab339d62 AO |
343 | fi |
344 | ||
34a86c2b NN |
345 | AC_MSG_CHECKING([whether a default linker was specified]) |
346 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
347 | if test x"$gnu_ld_flag" = x"no"; then | |
348 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
349 | else | |
350 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
351 | fi | |
352 | else | |
353 | AC_MSG_RESULT(no) | |
354 | fi | |
355 | ||
d594623a L |
356 | # With demangler in GNU ld |
357 | AC_ARG_WITH(demangler-in-ld, | |
b88ecf55 | 358 | [AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])], |
d594623a | 359 | demangler_in_ld="$with_demangler_in_ld", |
df45fc34 | 360 | demangler_in_ld=yes) |
d594623a | 361 | |
3b5e8ee4 IS |
362 | # Allow the user to specify a dsymutil executable (used on Darwin only, so far) |
363 | AC_ARG_WITH(dsymutil, | |
364 | [AS_HELP_STRING([--with-dsymutil], [arrange to use the specified dsymutil (full pathname)])], | |
365 | DEFAULT_DSYMUTIL="$with_dsymutil") | |
366 | ||
367 | dsymutil_vers= | |
368 | if test x"${DEFAULT_DSYMUTIL+set}" = x"set"; then | |
369 | if test ! -x "$DEFAULT_DSYMUTIL"; then | |
370 | AC_MSG_ERROR([cannot execute: $DEFAULT_DSYMUTIL: check --with-dsymutil or env. var. DEFAULT_DSYMUTIL]) | |
371 | else | |
372 | if dsymutil_vers=`$DEFAULT_DSYMUTIL -v /dev/null 2>&1`; then | |
373 | dsymutil_flag=yes | |
374 | fi | |
375 | fi | |
376 | AC_DEFINE_UNQUOTED(DEFAULT_DSYMUTIL,"$DEFAULT_DSYMUTIL", | |
377 | [Define to enable the use of a default debug linker.]) | |
378 | fi | |
379 | ||
380 | AC_MSG_CHECKING([whether a default dsymutil was specified]) | |
381 | if test x"${DEFAULT_DSYMUTIL+set}" = x"set"; then | |
382 | AC_MSG_RESULT([yes ($DEFAULT_DSYMUTIL)]) | |
383 | else | |
384 | AC_MSG_RESULT(no) | |
385 | fi | |
386 | ||
34a86c2b NN |
387 | # ---------------------- |
388 | # Find default assembler | |
389 | # ---------------------- | |
390 | ||
46f18e7b RK |
391 | # With GNU as |
392 | AC_ARG_WITH(gnu-as, | |
b88ecf55 | 393 | [AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])], |
df6faf79 JW |
394 | gas_flag="$with_gnu_as", |
395 | gas_flag=no) | |
46f18e7b | 396 | |
ab339d62 | 397 | AC_ARG_WITH(as, |
b88ecf55 | 398 | [AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])], |
3ccc3a56 AO |
399 | DEFAULT_ASSEMBLER="$with_as") |
400 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
401 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
99c012a8 | 402 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
e154a394 | 403 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
404 | gas_flag=yes |
405 | fi | |
119d24d1 KG |
406 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
407 | [Define to enable the use of a default assembler.]) | |
3ccc3a56 | 408 | fi |
ab339d62 | 409 | |
34a86c2b NN |
410 | AC_MSG_CHECKING([whether a default assembler was specified]) |
411 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
412 | if test x"$gas_flag" = x"no"; then | |
413 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
4e88d51b | 414 | else |
34a86c2b | 415 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
4e88d51b | 416 | fi |
34a86c2b NN |
417 | else |
418 | AC_MSG_RESULT(no) | |
4e88d51b | 419 | fi |
46f18e7b | 420 | |
34a86c2b NN |
421 | # --------------- |
422 | # Find C compiler | |
423 | # --------------- | |
13c22933 | 424 | |
426ca3ca RO |
425 | # If a non-executable a.out is present (e.g. created by GNU as above even if |
426 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
427 | # file, even when creating an executable, so an execution test fails. | |
428 | # Remove possible default executable files to avoid this. | |
429 | # | |
430 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
431 | # Autoconf includes it. | |
432 | rm -f a.out a.exe b.out | |
433 | ||
414d23ae HPN |
434 | # Find the native compiler |
435 | AC_PROG_CC | |
00020c16 | 436 | AC_PROG_CXX |
e8679fd5 | 437 | ACX_PROG_GNAT([-I"$srcdir"/ada/libgnat]) |
5fee5ec3 | 438 | ACX_PROG_GDC([-I"$srcdir"/d]) |
3d4e720a | 439 | |
13ccfea8 JM |
440 | # Do configure tests with the C++ compiler, since that's what we build with. |
441 | AC_LANG(C++) | |
442 | ||
ec6c7392 PB |
443 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer |
444 | # optimizations to be activated explicitly by the toplevel. | |
445 | case "$CC" in | |
446 | */prev-gcc/xgcc*) ;; | |
dadbefd3 JJ |
447 | *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` |
448 | CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` ;; | |
ec6c7392 PB |
449 | esac |
450 | AC_SUBST(CFLAGS) | |
8bf4ee34 | 451 | AC_SUBST(CXXFLAGS) |
5fee5ec3 | 452 | AC_SUBST(GDCFLAGS) |
ec6c7392 | 453 | |
e3aa9eba RO |
454 | # Determine PICFLAG for target gnatlib. |
455 | GCC_PICFLAG_FOR_TARGET | |
456 | AC_SUBST(PICFLAG_FOR_TARGET) | |
457 | ||
73458fb7 NN |
458 | # ------------------------- |
459 | # Check C compiler features | |
460 | # ------------------------- | |
461 | ||
60d26958 | 462 | AC_USE_SYSTEM_EXTENSIONS |
5329b59a | 463 | |
34a86c2b NN |
464 | AC_PROG_CPP |
465 | AC_C_INLINE | |
34a86c2b | 466 | |
480767a9 | 467 | AC_SYS_LARGEFILE |
14e0d832 CC |
468 | AC_CHECK_SIZEOF(ino_t) |
469 | AC_CHECK_SIZEOF(dev_t) | |
470 | ||
471 | # Select the right stat being able to handle 64bit inodes, if needed. | |
472 | if test "$enable_largefile" != no; then | |
473 | case "$host, $build" in | |
474 | *-*-aix*,*|*,*-*-aix*) | |
475 | if test "$ac_cv_sizeof_ino_t" == "4" -a "$ac_cv_sizeof_dev_t" == 4; then | |
476 | AC_DEFINE(HOST_STAT_FOR_64BIT_INODES, stat64x, | |
477 | [Define which stat syscall is able to handle 64bit indodes.]) | |
478 | fi;; | |
479 | esac | |
480 | fi | |
481 | ||
480767a9 | 482 | |
34a86c2b | 483 | # sizeof(char) is 1 by definition. |
bf3b7cd3 JD |
484 | AC_CHECK_SIZEOF(void *) |
485 | AC_CHECK_SIZEOF(short) | |
486 | AC_CHECK_SIZEOF(int) | |
487 | AC_CHECK_SIZEOF(long) | |
5ec1c5e6 | 488 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
7c2a2dbf | 489 | GCC_STDINT_TYPES |
edf6ddf6 RB |
490 | if test x"$ac_cv_c_uint64_t" = x"no" -o x"$ac_cv_c_int64_t" = x"no"; then |
491 | AC_MSG_ERROR([uint64_t or int64_t not found]) | |
492 | fi | |
34a86c2b | 493 | |
35987ae9 | 494 | # check what underlying integer type int64_t uses |
35987ae9 RB |
495 | AC_CACHE_CHECK(for int64_t underlying type, ac_cv_int64_t_type, [ |
496 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
497 | #ifdef HAVE_STDINT_H | |
498 | #include <stdint.h> | |
499 | #endif | |
500 | template <typename T> struct X { }; | |
501 | template <> | |
502 | struct X<long> { typedef long t; }; | |
503 | ]], [[X<int64_t>::t x;]])],[ac_cv_int64_t_type=long],[ac_cv_int64_t_type="long long"])]) | |
504 | if test "$ac_cv_int64_t_type" = "long"; then | |
505 | AC_DEFINE(INT64_T_IS_LONG, 1, | |
506 | [Define if int64_t uses long as underlying type.]) | |
507 | else | |
508 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
509 | #ifdef HAVE_STDINT_H | |
510 | #include <stdint.h> | |
511 | #endif | |
512 | template <typename T> struct X { }; | |
513 | template <> | |
514 | struct X<long long> { typedef long long t; }; | |
515 | ]], [[X<int64_t>::t x;]])],[],[AC_MSG_ERROR([error verifying int64_t uses long long])]) | |
516 | fi | |
35987ae9 | 517 | |
3dde4d65 MM |
518 | AC_CACHE_CHECK(for std::swap in <utility>, ac_cv_std_swap_in_utility, [ |
519 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
520 | #include <utility> | |
521 | ]], [[int a, b; std::swap(a,b);]])],[ac_cv_std_swap_in_utility=yes],[ac_cv_std_swap_in_utility=no])]) | |
522 | if test $ac_cv_std_swap_in_utility = yes; then | |
523 | AC_DEFINE(HAVE_SWAP_IN_UTILITY, 1, | |
524 | [Define if <utility> defines std::swap.]) | |
525 | fi | |
526 | ||
4c0cca18 UW |
527 | # Check whether compiler is affected by placement new aliasing bug (PR 29286). |
528 | # If the host compiler is affected by the bug, and we build with optimization | |
529 | # enabled (which happens e.g. when cross-compiling), the pool allocator may | |
530 | # get miscompiled. Use -fno-strict-aliasing to work around this problem. | |
531 | # Since there is no reliable feature check for the presence of this bug, | |
532 | # we simply use a GCC version number check. (This should never trigger for | |
533 | # stages 2 or 3 of a native bootstrap.) | |
534 | aliasing_flags= | |
535 | if test "$GCC" = yes; then | |
536 | saved_CXXFLAGS="$CXXFLAGS" | |
537 | ||
538 | # The following test compilation will succeed if and only if $CXX accepts | |
539 | # -fno-strict-aliasing *and* is older than GCC 4.3. | |
540 | CXXFLAGS="$CXXFLAGS -fno-strict-aliasing" | |
541 | AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug]) | |
22e05272 | 542 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
4c0cca18 UW |
543 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
544 | #error compiler not affected by placement new aliasing bug | |
545 | #endif | |
22e05272 | 546 | ])], |
4c0cca18 UW |
547 | [AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'], |
548 | [AC_MSG_RESULT([no])]) | |
549 | ||
550 | CXXFLAGS="$saved_CXXFLAGS" | |
551 | fi | |
552 | AC_SUBST(aliasing_flags) | |
35987ae9 RB |
553 | |
554 | ||
555 | ||
34a86c2b NN |
556 | # --------------------- |
557 | # Warnings and checking | |
558 | # --------------------- | |
559 | ||
b5472e1d NN |
560 | # Check $CC warning features (if it's GCC). |
561 | # We want to use -pedantic, but we don't want warnings about | |
562 | # * 'long long' | |
563 | # * variadic macros | |
89a42ac8 | 564 | # * overlong strings |
25339f10 | 565 | # * C++11 narrowing conversions in { } |
b5472e1d NN |
566 | # So, we only use -pedantic if we can disable those warnings. |
567 | ||
1652c6da JM |
568 | # In stage 1, disable -Wformat warnings from old GCCs about new % codes |
569 | AC_ARG_ENABLE(build-format-warnings, | |
570 | AS_HELP_STRING([--disable-build-format-warnings],[don't use -Wformat while building GCC]), | |
571 | [],[enable_build_format_warnings=yes]) | |
572 | AS_IF([test $enable_build_format_warnings = no], | |
573 | [wf_opt=-Wno-format],[wf_opt=]) | |
ff771de3 | 574 | ACX_PROG_CXX_WARNING_OPTS( |
9bf40084 | 575 | m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings ], |
34ba4275 | 576 | [-Wcast-qual $wf_opt])), |
0ecf545c | 577 | [loose_warn]) |
f6e377f8 | 578 | ACX_PROG_CC_WARNING_OPTS( |
0ecf545c | 579 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ], |
34ba4275 | 580 | [])), [c_loose_warn]) |
ff771de3 | 581 | ACX_PROG_CXX_WARNING_OPTS( |
ec9d5ad1 UB |
582 | m4_quote(m4_do([-Wmissing-format-attribute ], |
583 | [-Woverloaded-virtual])), [strict_warn]) | |
00020c16 ILT |
584 | ACX_PROG_CC_WARNING_OPTS( |
585 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
ff771de3 | 586 | ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC( |
75c9cbe3 AS |
587 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
588 | [-Wno-overlength-strings])), [strict_warn]) | |
ff771de3 | 589 | ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
3bbd5a19 PB |
590 | |
591 | # The above macros do nothing if the compiler is not GCC. However, the | |
00020c16 ILT |
592 | # Makefile has more goo to add other flags, so these variables are used |
593 | # to enable warnings only for GCC. | |
414d23ae | 594 | warn_cflags= |
00020c16 | 595 | warn_cxxflags= |
414d23ae HPN |
596 | if test "x$GCC" = "xyes"; then |
597 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
00020c16 | 598 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
414d23ae HPN |
599 | fi |
600 | AC_SUBST(warn_cflags) | |
00020c16 | 601 | AC_SUBST(warn_cxxflags) |
414d23ae | 602 | |
e9411247 MM |
603 | # Disable exceptions and RTTI if building with g++ |
604 | ACX_PROG_CC_WARNING_OPTS( | |
3d47a53a UB |
605 | m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])), |
606 | [noexception_flags]) | |
e9411247 | 607 | |
8b1f719a | 608 | # Enable expensive internal checks |
a1286ef5 ZW |
609 | is_release= |
610 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
611 | is_release=yes | |
612 | fi | |
dd859b8a | 613 | |
a494747c | 614 | AC_ARG_ENABLE(checking, |
b88ecf55 AS |
615 | [AS_HELP_STRING([[--enable-checking[=LIST]]], |
616 | [enable expensive run-time checks. With LIST, | |
617 | enable only specific categories of checks. | |
618 | Categories are: yes,no,all,none,release. | |
7db11a5a | 619 | Flags are: assert,df,extra,fold,gc,gcac,gimple,misc, |
b88ecf55 | 620 | rtlflag,rtl,runtime,tree,valgrind,types])], |
e1bbfc5c NS |
621 | [ac_checking_flags="${enableval}"],[ |
622 | # Determine the default checks. | |
623 | if test x$is_release = x ; then | |
7db11a5a | 624 | ac_checking_flags=yes,extra |
e1bbfc5c NS |
625 | else |
626 | ac_checking_flags=release | |
627 | fi]) | |
e1bbfc5c | 628 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
04c3028a | 629 | for check in release $ac_checking_flags |
e1bbfc5c NS |
630 | do |
631 | case $check in | |
cdce5c16 | 632 | # these set all the flags to specific states |
0d475361 | 633 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
7db11a5a | 634 | ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ; |
726a989a | 635 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
232b67d9 | 636 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c | 637 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
1b24a790 | 638 | ac_types_checking=1 ;; |
3089f8b5 | 639 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 640 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 641 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
232b67d9 | 642 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
7e98624c RG |
643 | ac_tree_checking= ; ac_valgrind_checking= ; |
644 | ac_types_checking= ;; | |
3089f8b5 | 645 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
7db11a5a | 646 | ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ; |
726a989a | 647 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
cdce5c16 | 648 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c RG |
649 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
650 | ac_types_checking=1 ;; | |
3089f8b5 | 651 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 652 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 653 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
cdce5c16 | 654 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
7e98624c RG |
655 | ac_tree_checking= ; ac_valgrind_checking= ; |
656 | ac_types_checking= ;; | |
cdce5c16 | 657 | # these enable particular checks |
e1bbfc5c | 658 | assert) ac_assert_checking=1 ;; |
7db11a5a JJ |
659 | df) ac_df_checking=1 ;; |
660 | extra) ac_extra_checking=1 ;; | |
e1bbfc5c NS |
661 | fold) ac_fold_checking=1 ;; |
662 | gc) ac_gc_checking=1 ;; | |
663 | gcac) ac_gc_always_collect=1 ;; | |
726a989a | 664 | gimple) ac_gimple_checking=1 ;; |
e1bbfc5c | 665 | misc) ac_checking=1 ;; |
e1bbfc5c | 666 | rtl) ac_rtl_checking=1 ;; |
cdce5c16 | 667 | rtlflag) ac_rtlflag_checking=1 ;; |
b53ef395 | 668 | runtime) ac_runtime_checking=1 ;; |
e1bbfc5c | 669 | tree) ac_tree_checking=1 ;; |
7e98624c | 670 | types) ac_types_checking=1 ;; |
cdce5c16 | 671 | valgrind) ac_valgrind_checking=1 ;; |
e1bbfc5c NS |
672 | *) AC_MSG_ERROR(unknown check category $check) ;; |
673 | esac | |
674 | done | |
675 | IFS="$ac_save_IFS" | |
676 | ||
204250d2 | 677 | nocommon_flag="" |
119d24d1 | 678 | if test x$ac_checking != x ; then |
b06f87c7 BE |
679 | AC_DEFINE(CHECKING_P, 1, |
680 | [Define to 0/1 if you want more run-time sanity checks. This one gets a grab | |
681 | bag of miscellaneous but relatively cheap checks.]) | |
204250d2 | 682 | nocommon_flag=-fno-common |
7ec491c0 MM |
683 | else |
684 | AC_DEFINE(CHECKING_P, 0) | |
119d24d1 | 685 | fi |
204250d2 | 686 | AC_SUBST(nocommon_flag) |
b06f87c7 BE |
687 | if test x$ac_extra_checking != x ; then |
688 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 1, | |
689 | [Define to 0/1 if you want extra run-time checking that might affect code | |
690 | generation.]) | |
691 | else | |
692 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 0) | |
693 | fi | |
3089f8b5 PB |
694 | if test x$ac_df_checking != x ; then |
695 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
696 | [Define if you want more run-time sanity checks for dataflow.]) | |
697 | fi | |
06c37c96 NS |
698 | if test x$ac_assert_checking != x ; then |
699 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
700 | [Define if you want assertions enabled. This is a cheap check.]) | |
701 | fi | |
726a989a RB |
702 | if test x$ac_gimple_checking != x ; then |
703 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
704 | [Define if you want operations on GIMPLE (the basic data structure of | |
705 | the high-level optimizers) to be checked for dynamic type safety at | |
706 | runtime. This is moderately expensive.]) | |
707 | fi | |
232b67d9 | 708 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
b53ef395 NS |
709 | if test x$ac_runtime_checking != x ; then |
710 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
711 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
712 | fi | |
119d24d1 KG |
713 | if test x$ac_tree_checking != x ; then |
714 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
715 | [Define if you want all operations on trees (the basic data | |
716 | structure of the front ends) to be checked for dynamic type safety | |
8d2ccbd2 | 717 | at runtime. This is moderately expensive. |
13f05fd0 | 718 | ]) |
7cb9fd07 | 719 | TREECHECKING=yes |
119d24d1 | 720 | fi |
7e98624c RG |
721 | if test x$ac_types_checking != x ; then |
722 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
723 | [Define if you want all gimple types to be verified after gimplifiation. | |
724 | This is cheap. | |
725 | ]) | |
726 | fi | |
7cb9fd07 | 727 | AC_SUBST(TREECHECKING) |
119d24d1 KG |
728 | if test x$ac_rtl_checking != x ; then |
729 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
730 | [Define if you want all operations on RTL (the basic data structure | |
731 | of the optimizer and back end) to be checked for dynamic type safety | |
732 | at runtime. This is quite expensive.]) | |
733 | fi | |
4c76f856 JJ |
734 | if test x$ac_rtlflag_checking != x ; then |
735 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
736 | [Define if you want RTL flag accesses to be checked against the RTL | |
737 | codes that are supported for each access macro. This is relatively | |
738 | cheap.]) | |
739 | fi | |
119d24d1 KG |
740 | if test x$ac_gc_checking != x ; then |
741 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
742 | [Define if you want the garbage collector to do object poisoning and | |
743 | other memory allocation checks. This is quite expensive.]) | |
744 | fi | |
745 | if test x$ac_gc_always_collect != x ; then | |
746 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
747 | [Define if you want the garbage collector to operate in maximally | |
748 | paranoid mode, validating the entire heap and collecting garbage at | |
749 | every opportunity. This is extremely expensive.]) | |
750 | fi | |
5dfa45d0 JJ |
751 | if test x$ac_fold_checking != x ; then |
752 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
753 | [Define if you want fold checked that it never destructs its argument. | |
754 | This is quite expensive.]) | |
755 | fi | |
414d23ae HPN |
756 | valgrind_path_defines= |
757 | valgrind_command= | |
6938ec6c NN |
758 | |
759 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
760 | dnl # an if statement. This was the source of very frustrating bugs | |
761 | dnl # in converting to autoconf 2.5x! | |
762 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
763 | ||
279a935f RB |
764 | # It is certainly possible that there's valgrind but no valgrind.h. |
765 | # GCC relies on making annotations so we must have both. | |
766 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
767 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
768 | [[#include <valgrind/memcheck.h> | |
a207b594 HPN |
769 | #ifndef VALGRIND_DISCARD |
770 | #error VALGRIND_DISCARD not defined | |
f04f1d2c | 771 | #endif]])], |
a207b594 HPN |
772 | [gcc_cv_header_valgrind_memcheck_h=yes], |
773 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
279a935f RB |
774 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) |
775 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
776 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
777 | [[#include <memcheck.h> | |
14011ca4 AJ |
778 | #ifndef VALGRIND_DISCARD |
779 | #error VALGRIND_DISCARD not defined | |
f04f1d2c KC |
780 | #endif]])], |
781 | [gcc_cv_header_memcheck_h=yes], | |
782 | [gcc_cv_header_memcheck_h=no]) | |
279a935f RB |
783 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
784 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
785 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
786 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
787 | fi | |
788 | if test $gcc_cv_header_memcheck_h = yes; then | |
789 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
790 | [Define if valgrind's memcheck.h header is installed.]) | |
791 | fi | |
792 | ||
793 | if test x$ac_valgrind_checking != x ; then | |
414d23ae HPN |
794 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
795 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a207b594 HPN |
796 | if test "x$valgrind_path" = "x" \ |
797 | || (test $have_valgrind_h = no \ | |
798 | && test $gcc_cv_header_memcheck_h = no \ | |
799 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
800 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
414d23ae HPN |
801 | fi |
802 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
803 | valgrind_command="$valgrind_path -q" | |
804 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
805 | [Define if you want to run subprograms and generated programs | |
806 | through valgrind (a memory checker). This is extremely expensive.]) | |
807 | fi | |
808 | AC_SUBST(valgrind_path_defines) | |
809 | AC_SUBST(valgrind_command) | |
51d0e20c | 810 | |
22aa533e NS |
811 | # Enable code coverage collection |
812 | AC_ARG_ENABLE(coverage, | |
b88ecf55 AS |
813 | [AS_HELP_STRING([[--enable-coverage[=LEVEL]]], |
814 | [enable compiler's code coverage collection. | |
815 | Use to measure compiler performance and locate | |
816 | unused parts of the compiler. With LEVEL, specify | |
817 | optimization. Values are opt, noopt, | |
818 | default is noopt])], | |
22aa533e | 819 | [case "${enableval}" in |
6dd297da | 820 | yes|noopt) |
9879232c | 821 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" |
6dd297da NN |
822 | ;; |
823 | opt) | |
9879232c | 824 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" |
6dd297da NN |
825 | ;; |
826 | no) | |
827 | # a.k.a. --disable-coverage | |
828 | coverage_flags="" | |
829 | ;; | |
830 | *) | |
831 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
832 | ;; | |
22aa533e | 833 | esac], |
2043c38e | 834 | [coverage_flags=""]) |
22aa533e NS |
835 | AC_SUBST(coverage_flags) |
836 | ||
439a7e54 | 837 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
b88ecf55 AS |
838 | [AS_HELP_STRING([--enable-gather-detailed-mem-stats], |
839 | [enable detailed memory allocation stats gathering])], [], | |
439a7e54 | 840 | [enable_gather_detailed_mem_stats=no]) |
7aa6d18a SB |
841 | gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi` |
842 | AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats, | |
843 | [Define to enable detailed memory allocation stats gathering.]) | |
439a7e54 | 844 | |
279a935f RB |
845 | AC_ARG_ENABLE(valgrind-annotations, |
846 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
847 | [enable valgrind runtime interaction])], [], | |
848 | [enable_valgrind_annotations=no]) | |
849 | if test x$enable_valgrind_annotations != xno \ | |
850 | || test x$ac_valgrind_checking != x; then | |
851 | if (test $have_valgrind_h = no \ | |
852 | && test $gcc_cv_header_memcheck_h = no \ | |
853 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
854 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
855 | fi | |
856 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
857 | [Define to get calls to the valgrind runtime enabled.]) | |
858 | fi | |
859 | ||
73458fb7 NN |
860 | # ------------------------------- |
861 | # Miscenalleous configure options | |
862 | # ------------------------------- | |
34a86c2b | 863 | |
34a86c2b NN |
864 | # Determine whether or not multilibs are enabled. |
865 | AC_ARG_ENABLE(multilib, | |
b88ecf55 AS |
866 | [AS_HELP_STRING([--enable-multilib], |
867 | [enable library support for multiple ABIs])], | |
34a86c2b NN |
868 | [], [enable_multilib=yes]) |
869 | AC_SUBST(enable_multilib) | |
3ecc3258 | 870 | |
e0cdc09f MK |
871 | # Determine whether or not multiarch is enabled. |
872 | AC_ARG_ENABLE(multiarch, | |
873 | [AS_HELP_STRING([--enable-multiarch], | |
874 | [enable support for multiarch paths])], | |
5213f20c MK |
875 | [case "${enableval}" in |
876 | yes|no|auto) enable_multiarch=$enableval;; | |
877 | *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;; | |
e0cdc09f MK |
878 | esac], [enable_multiarch=auto]) |
879 | if test x${enable_multiarch} = xauto; then | |
880 | if test x${with_native_system_header_dir} != x; then | |
881 | ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)" | |
882 | enable_multiarch=no | |
883 | fi | |
884 | if test x$host != x$target && test "x$with_sysroot" = x; then | |
885 | ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)" | |
886 | enable_multiarch=no | |
887 | fi | |
888 | fi | |
889 | AC_MSG_CHECKING(for multiarch configuration) | |
890 | AC_SUBST(enable_multiarch) | |
891 | AC_MSG_RESULT($enable_multiarch$ma_msg_suffix) | |
892 | ||
893 | # needed for setting the multiarch name for soft-float/hard-float ABIs | |
d757eae9 | 894 | AC_SUBST(with_cpu) |
e0cdc09f MK |
895 | AC_SUBST(with_float) |
896 | ||
630b1e3a TC |
897 | # default stack clash protection guard size as power of twos in bytes. |
898 | # Please keep these in sync with params.def. | |
899 | stk_clash_min=12 | |
900 | stk_clash_max=30 | |
901 | ||
902 | # Keep the default value when the option is not used to 0, this allows us to | |
903 | # distinguish between the cases where the user specifially set a value via | |
904 | # configure and when the normal default value is used. | |
905 | AC_ARG_WITH(stack-clash-protection-guard-size, | |
906 | [AS_HELP_STRING([--with-stack-clash-protection-guard-size=size], | |
907 | [Set the default stack clash protection guard size for specific targets as a power of two in bytes.])], | |
908 | [DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0]) | |
909 | if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \ | |
910 | && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \ | |
911 | || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then | |
912 | AC_MSG_ERROR(m4_normalize([ | |
913 | Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \ | |
914 | Must be between $stk_clash_min and $stk_clash_max.])) | |
915 | fi | |
916 | ||
917 | AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE, | |
918 | [Define to larger than zero set the default stack clash protector size.]) | |
919 | ||
4bafaa6f L |
920 | # Enable __cxa_atexit for C++. |
921 | AC_ARG_ENABLE(__cxa_atexit, | |
b88ecf55 | 922 | [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])], |
4bafaa6f | 923 | [], []) |
2121a768 | 924 | |
486aa804 | 925 | # Enable C extension for decimal float if target supports it. |
3c39bca6 | 926 | GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) |
486aa804 | 927 | |
79b87c74 | 928 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
486aa804 BE |
929 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
930 | [Define to 1 to enable decimal float extension to C.]) | |
931 | ||
cc0ae0ca L |
932 | # Use default_decimal_float for dependency. |
933 | enable_decimal_float=$default_decimal_float | |
934 | ||
79b87c74 MM |
935 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` |
936 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
937 | [Define to 1 to specify that we are using the BID decimal floating | |
938 | point format instead of DPD]) | |
939 | ||
ab22c1fa CF |
940 | # Enable C extension for fixed-point arithmetic. |
941 | AC_ARG_ENABLE(fixed-point, | |
b88ecf55 AS |
942 | [AS_HELP_STRING([--enable-fixed-point], |
943 | [enable fixed-point arithmetic extension to C])], | |
944 | [], | |
ab22c1fa CF |
945 | [ |
946 | case $target in | |
655b30bf JB |
947 | arm*) |
948 | enable_fixed_point=yes | |
949 | ;; | |
950 | ||
ab22c1fa | 951 | mips*-*-*) |
b24513a1 | 952 | enable_fixed_point=yes |
ab22c1fa CF |
953 | ;; |
954 | *) | |
84f47d20 | 955 | AC_MSG_WARN([fixed-point is not supported for this target, ignored]) |
ab22c1fa CF |
956 | enable_fixed_point=no |
957 | ;; | |
958 | esac | |
959 | ]) | |
960 | AC_SUBST(enable_fixed_point) | |
961 | ||
962 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
963 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
964 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
965 | ||
0bbb1697 RK |
966 | # Enable threads |
967 | # Pass with no value to take the default | |
968 | # Pass with a value to specify a thread package | |
969 | AC_ARG_ENABLE(threads, | |
b88ecf55 AS |
970 | [AS_HELP_STRING([[--enable-threads[=LIB]]], |
971 | [enable thread usage for target GCC, | |
972 | using LIB thread package])],, | |
615be2cf | 973 | [enable_threads='']) |
0bbb1697 | 974 | |
8dea1cca | 975 | AC_ARG_ENABLE(tls, |
b88ecf55 AS |
976 | [AS_HELP_STRING([--enable-tls], |
977 | [enable or disable generation of tls code | |
978 | overriding the assembler check for tls support])], | |
8dea1cca DD |
979 | [ |
980 | case $enable_tls in | |
981 | yes | no) ;; | |
982 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
983 | Valid choices are 'yes' and 'no'.]) ;; | |
984 | esac | |
985 | ], [enable_tls='']) | |
986 | ||
ad103b01 RO |
987 | AC_ARG_ENABLE(vtable-verify, |
988 | [AS_HELP_STRING([--enable-vtable-verify], | |
989 | [enable vtable verification feature])],, | |
990 | [enable_vtable_verify=no]) | |
991 | vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi` | |
992 | AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify, | |
993 | [Define 0/1 if vtable verification feature is enabled.]) | |
994 | ||
757bf1df DM |
995 | AC_ARG_ENABLE(analyzer, |
996 | [AS_HELP_STRING([--disable-analyzer], | |
997 | [disable -fanalyzer static analyzer])], | |
998 | if test x$enable_analyzer = xno; then | |
999 | analyzer=0 | |
1000 | else | |
1001 | analyzer=1 | |
1002 | fi, | |
1003 | analyzer=1) | |
1004 | AC_DEFINE_UNQUOTED(ENABLE_ANALYZER, $analyzer, | |
1005 | [Define 0/1 if static analyzer feature is enabled.]) | |
1006 | ||
d8bb17c8 | 1007 | AC_ARG_ENABLE(objc-gc, |
b88ecf55 AS |
1008 | [AS_HELP_STRING([--enable-objc-gc], |
1009 | [enable the use of Boehm's garbage collector with | |
1010 | the GNU Objective-C runtime])], | |
2618c083 | 1011 | if test x$enable_objc_gc = xno; then |
d8bb17c8 OP |
1012 | objc_boehm_gc='' |
1013 | else | |
1014 | objc_boehm_gc=1 | |
1015 | fi, | |
1016 | objc_boehm_gc='') | |
1017 | ||
90e6a802 | 1018 | AC_ARG_WITH(dwarf2, |
b88ecf55 | 1019 | [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])], |
87921b81 | 1020 | dwarf2="$with_dwarf2", |
90e6a802 RL |
1021 | dwarf2=no) |
1022 | ||
50503ac8 | 1023 | AC_ARG_ENABLE(shared, |
b88ecf55 | 1024 | [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])], |
c785e0fa AO |
1025 | [ |
1026 | case $enable_shared in | |
1027 | yes | no) ;; | |
1028 | *) | |
1029 | enable_shared=no | |
1030 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
1031 | for pkg in $enableval; do | |
1032 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
1033 | enable_shared=yes | |
1034 | fi | |
1035 | done | |
1036 | IFS="$ac_save_ifs" | |
1037 | ;; | |
1038 | esac | |
1039 | ], [enable_shared=yes]) | |
50503ac8 RH |
1040 | AC_SUBST(enable_shared) |
1041 | ||
1765b023 RV |
1042 | AC_ARG_ENABLE(gcov, |
1043 | [ --disable-gcov don't provide libgcov and related host tools], | |
1044 | [], [enable_gcov=yes]) | |
1045 | AC_SUBST(enable_gcov) | |
1046 | ||
e11ddaf5 NS |
1047 | AC_ARG_WITH(specs, |
1048 | [AS_HELP_STRING([--with-specs=SPECS], | |
1049 | [add SPECS to driver command-line processing])], | |
1050 | [CONFIGURE_SPECS=$withval], | |
1051 | [CONFIGURE_SPECS=] | |
1052 | ) | |
1053 | AC_SUBST(CONFIGURE_SPECS) | |
1054 | ||
2f41c1d6 | 1055 | ACX_PKGVERSION([GCC]) |
9334ef9e | 1056 | ACX_BUGURL([https://gcc.gnu.org/bugs/]) |
2f41c1d6 | 1057 | |
b4c7ca2e DM |
1058 | # Allow overriding the default URL for documentation |
1059 | AC_ARG_WITH(documentation-root-url, | |
1060 | AS_HELP_STRING([--with-documentation-root-url=URL], | |
1061 | [Root for documentation URLs]), | |
1062 | [case "$withval" in | |
1063 | yes) AC_MSG_ERROR([documentation root URL not specified]) ;; | |
1064 | no) AC_MSG_ERROR([documentation root URL not specified]) ;; | |
e33a1eae JJ |
1065 | */) DOCUMENTATION_ROOT_URL="$withval" ;; |
1066 | *) AC_MSG_ERROR([documentation root URL does not end with /]) ;; | |
b4c7ca2e | 1067 | esac], |
fa29cf0c | 1068 | DOCUMENTATION_ROOT_URL="https://gcc.gnu.org/onlinedocs/" |
b4c7ca2e | 1069 | ) |
e33a1eae JJ |
1070 | AC_DEFINE_UNQUOTED(DOCUMENTATION_ROOT_URL,"$DOCUMENTATION_ROOT_URL", |
1071 | [Define to the root for documentation URLs.]) | |
b4c7ca2e | 1072 | |
691eeb65 JJ |
1073 | # Allow overriding the default URL for GCC changes |
1074 | AC_ARG_WITH(changes-root-url, | |
1075 | AS_HELP_STRING([--with-changes-root-url=URL], | |
1076 | [Root for GCC changes URLs]), | |
1077 | [case "$withval" in | |
1078 | yes) AC_MSG_ERROR([changes root URL not specified]) ;; | |
1079 | no) AC_MSG_ERROR([changes root URL not specified]) ;; | |
e33a1eae JJ |
1080 | */) CHANGES_ROOT_URL="$withval" ;; |
1081 | *) AC_MSG_ERROR([changes root URL does not end with /]) ;; | |
691eeb65 JJ |
1082 | esac], |
1083 | CHANGES_ROOT_URL="https://gcc.gnu.org/" | |
1084 | ) | |
e33a1eae JJ |
1085 | AC_DEFINE_UNQUOTED(CHANGES_ROOT_URL,"$CHANGES_ROOT_URL", |
1086 | [Define to the root for URLs about GCC changes.]) | |
691eeb65 | 1087 | |
e4c9c075 PB |
1088 | # Sanity check enable_languages in case someone does not run the toplevel |
1089 | # configure # script. | |
1090 | AC_ARG_ENABLE(languages, | |
b88ecf55 | 1091 | [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])], |
e4c9c075 PB |
1092 | [case ,${enable_languages}, in |
1093 | ,,|,yes,) | |
1094 | # go safe -- we cannot be much sure without the toplevel | |
1095 | # configure's | |
1096 | # analysis of which target libs are present and usable | |
1097 | enable_languages=c | |
1098 | ;; | |
1099 | *,all,*) | |
1100 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
1101 | ;; | |
1102 | *,c,*) | |
1103 | ;; | |
1104 | *) | |
1105 | enable_languages=c,${enable_languages} | |
1106 | ;; | |
1107 | esac], | |
1108 | [enable_languages=c]) | |
1109 | ||
8951374d MR |
1110 | # If top-level libada has been disabled, then wire in install-gnatlib |
1111 | # invocation with `make install', so that one can build and install | |
1112 | # the library manually with `make -C gcc all gnatlib gnattools install'. | |
1113 | if test x"$enable_libada" = xno; then | |
1114 | gnat_install_lib=gnat-install-lib | |
1115 | else | |
1116 | gnat_install_lib= | |
1117 | fi | |
1118 | AC_SUBST(gnat_install_lib) | |
1119 | ||
85c64bbe BS |
1120 | if test x"$enable_as_accelerator_for" != x; then |
1121 | AC_DEFINE(ACCEL_COMPILER, 1, | |
1122 | [Define if this compiler should be built as the offload target compiler.]) | |
1123 | enable_as_accelerator=yes | |
1124 | case "${target}" in | |
1125 | *-intelmicemul-*) | |
1126 | # In this case we expect offload compiler to be built as native, so we | |
1127 | # need to rename the driver to avoid clashes with host's drivers. | |
1128 | program_transform_name="s&^&${target}-&" ;; | |
1129 | esac | |
1130 | sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#" | |
1131 | program_transform_name=`echo $program_transform_name | sed $sedscript` | |
1132 | accel_dir_suffix=/accel/${target_noncanonical} | |
1133 | real_target_noncanonical=${enable_as_accelerator_for} | |
1134 | fi | |
1135 | AC_SUBST(enable_as_accelerator) | |
1136 | AC_SUBST(real_target_noncanonical) | |
1137 | AC_SUBST(accel_dir_suffix) | |
1138 | ||
1139 | for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do | |
1140 | tgt=`echo $tgt | sed 's/=.*//'` | |
b2b40051 | 1141 | |
c56684fd MJ |
1142 | enable_offloading=1 |
1143 | case "$tgt" in | |
1144 | *-intelmic-* | *-intelmicemul-*) | |
1145 | omp_device_property=omp-device-properties-i386 | |
1146 | omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/i386/t-omp-device" | |
1147 | ;; | |
1148 | amdgcn*) | |
1149 | omp_device_property=omp-device-properties-gcn | |
1150 | omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/gcn/t-omp-device" | |
1151 | ;; | |
1152 | nvptx*) | |
1153 | omp_device_property=omp-device-properties-nvptx | |
1154 | omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/nvptx/t-omp-device" | |
1155 | ;; | |
1156 | *) | |
1157 | AC_MSG_ERROR([unknown offload target specified]) | |
1158 | ;; | |
1159 | esac | |
1160 | omp_device_properties="${omp_device_properties} ${tgt}=${omp_device_property}" | |
1161 | omp_device_property_deps="${omp_device_property_deps} ${omp_device_property}" | |
b2b40051 | 1162 | |
85c64bbe BS |
1163 | if test x"$offload_targets" = x; then |
1164 | offload_targets=$tgt | |
1165 | else | |
64186aad | 1166 | offload_targets="$offload_targets,$tgt" |
85c64bbe BS |
1167 | fi |
1168 | done | |
9ba66bf5 JJ |
1169 | AC_SUBST(omp_device_properties) |
1170 | AC_SUBST(omp_device_property_deps) | |
1171 | ||
85c64bbe | 1172 | AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", |
64186aad | 1173 | [Define to offload targets, separated by commas.]) |
b2b40051 | 1174 | if test x"$enable_offloading" != x; then |
85c64bbe BS |
1175 | AC_DEFINE(ENABLE_OFFLOADING, 1, |
1176 | [Define this to enable support for offloading.]) | |
1d899da2 TS |
1177 | else |
1178 | AC_DEFINE(ENABLE_OFFLOADING, 0, | |
1179 | [Define this to enable support for offloading.]) | |
85c64bbe BS |
1180 | fi |
1181 | ||
fe5bfa67 TB |
1182 | if test "x$enable_offload_defaulted" = xyes; then |
1183 | AC_DEFINE(OFFLOAD_DEFAULTED, 1, | |
1184 | [Define to 1 to if -foffload is defaulted]) | |
1185 | fi | |
1186 | ||
aca600aa | 1187 | AC_ARG_WITH(multilib-list, |
711084c9 | 1188 | [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, ARM, AVR, OR1K, RISC-V, SH and x86-64 only)])], |
aca600aa AS |
1189 | :, |
1190 | with_multilib_list=default) | |
1191 | ||
c1e66912 KC |
1192 | AC_ARG_WITH(multilib-generator, |
1193 | [AS_HELP_STRING([--with-multilib-generator], [Multi-libs configuration string (RISC-V only)])], | |
1194 | :, | |
1195 | with_multilib_generator=default) | |
1196 | ||
73458fb7 NN |
1197 | # ------------------------- |
1198 | # Checks for other programs | |
1199 | # ------------------------- | |
61842080 | 1200 | |
e9a25f70 JL |
1201 | AC_PROG_MAKE_SET |
1202 | ||
46f18e7b RK |
1203 | # Find some useful tools |
1204 | AC_PROG_AWK | |
e53b6e56 | 1205 | # We need awk to create options.cc and options.h. |
2c4902b9 NN |
1206 | # Bail out if it's missing. |
1207 | case ${AWK} in | |
1208 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
1209 | esac | |
1210 | ||
99e757d5 | 1211 | gcc_AC_PROG_LN_S |
ad6717df | 1212 | ACX_PROG_LN($LN_S) |
46f18e7b | 1213 | AC_PROG_RANLIB |
10eb188c | 1214 | ranlib_flags="" |
343a6100 MM |
1215 | AC_SUBST(ranlib_flags) |
1216 | ||
99e757d5 | 1217 | gcc_AC_PROG_INSTALL |
46f18e7b | 1218 | |
3a000df0 KC |
1219 | # See if cmp has --ignore-initial. |
1220 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
1221 | ||
955be633 JM |
1222 | # See if we have the mktemp command. |
1223 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
1224 | ||
7c27e184 PB |
1225 | # See if makeinfo has been installed and is modern enough |
1226 | # that we can use it. | |
3bbd5a19 | 1227 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
09fa0705 | 1228 | [GNU texinfo.* \([0-9][0-9.]*\)], |
7326a39e | 1229 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
09fa0705 ZW |
1230 | if test $gcc_cv_prog_makeinfo_modern = no; then |
1231 | AC_MSG_WARN([ | |
1232 | *** Makeinfo is missing or too old. | |
17db6582 | 1233 | *** Info documentation will not be built.]) |
09fa0705 | 1234 | BUILD_INFO= |
09fa0705 | 1235 | else |
7c27e184 | 1236 | BUILD_INFO=info |
09fa0705 | 1237 | fi |
7c27e184 | 1238 | AC_SUBST(BUILD_INFO) |
09fa0705 | 1239 | |
3f896fc2 JM |
1240 | # Is pod2man recent enough to regenerate manpages? |
1241 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7be33370 | 1242 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fd939e46 | 1243 | AC_MSG_RESULT(yes) |
7c27e184 | 1244 | GENERATED_MANPAGES=generated-manpages |
fd939e46 JM |
1245 | else |
1246 | AC_MSG_RESULT(no) | |
1247 | GENERATED_MANPAGES= | |
1248 | fi | |
7c27e184 | 1249 | AC_SUBST(GENERATED_MANPAGES) |
fd939e46 | 1250 | |
3bbd5a19 PB |
1251 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
1252 | ||
1e608388 ZW |
1253 | # How about lex? |
1254 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
1255 | dnl LEXLIB is not useful in gcc. | |
7c27e184 | 1256 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
1e608388 ZW |
1257 | |
1258 | # Bison? | |
7c27e184 PB |
1259 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
1260 | ||
1261 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
1262 | # check for build == host before using them. | |
1e608388 | 1263 | |
f6a874ac | 1264 | # NM |
414adbdd GK |
1265 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
1266 | && test -d ../binutils ; then | |
bfa912a8 | 1267 | NM='${objdir}/../binutils/nm-new' |
f6a874ac JW |
1268 | else |
1269 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
1270 | fi | |
1271 | ||
1272 | # AR | |
414adbdd GK |
1273 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
1274 | && test -d ../binutils ; then | |
bfa912a8 | 1275 | AR='${objdir}/../binutils/ar' |
f6a874ac JW |
1276 | else |
1277 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
1278 | fi | |
1279 | ||
35485da9 DM |
1280 | # The jit documentation looks better if built with sphinx, but can be |
1281 | # built with texinfo if sphinx is not available. | |
1282 | # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly. | |
1283 | AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo) | |
f6a874ac | 1284 | |
73458fb7 NN |
1285 | # -------------------- |
1286 | # Checks for C headers | |
1287 | # -------------------- | |
1288 | ||
ca9bc441 NN |
1289 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
1290 | # works later. *sigh* This needs to come before all header checks. | |
1291 | AC_PROG_CPP_WERROR | |
1292 | ||
73458fb7 NN |
1293 | AC_HEADER_STDC |
1294 | AC_HEADER_TIME | |
4f4e53dd | 1295 | ACX_HEADER_STRING |
73458fb7 | 1296 | AC_HEADER_SYS_WAIT |
c68a6e08 | 1297 | AC_HEADER_TIOCGWINSZ |
dfb77e37 | 1298 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
37050045 | 1299 | fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
9ec469f5 | 1300 | sys/resource.h sys/param.h sys/times.h sys/stat.h sys/locking.h \ |
4fbfcf44 | 1301 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
73458fb7 NN |
1302 | |
1303 | # Check for thread headers. | |
1304 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
1305 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
1306 | ||
1307 | # These tests can't be done till we know if we have limits.h. | |
1308 | gcc_AC_C_CHAR_BIT | |
9791c75c | 1309 | AC_C_BIGENDIAN |
73458fb7 | 1310 | |
5427046f ILT |
1311 | # ---------------------- |
1312 | # Checks for C++ headers | |
1313 | # ---------------------- | |
1314 | ||
c658f0ce ILT |
1315 | dnl Autoconf will give an error in the configure script if there is no |
1316 | dnl C++ preprocessor. Hack to prevent that. | |
1317 | m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl | |
1318 | AC_PROG_CXXCPP | |
1319 | m4_popdef([AC_MSG_ERROR])[]dnl | |
1320 | ||
5427046f ILT |
1321 | AC_CHECK_HEADERS(unordered_map) |
1322 | AC_CHECK_HEADERS(tr1/unordered_map) | |
1323 | AC_CHECK_HEADERS(ext/hash_map) | |
1324 | ||
043378c3 TT |
1325 | # -------- |
1326 | # Dependency checking. | |
1327 | # -------- | |
1328 | ||
043378c3 TT |
1329 | ZW_CREATE_DEPDIR |
1330 | AC_CONFIG_COMMANDS([gccdepdir],[ | |
1331 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR | |
73b75827 | 1332 | for lang in $subdirs c-family common analyzer rtl-ssa |
043378c3 TT |
1333 | do |
1334 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR | |
1335 | done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) | |
1336 | ||
54c09437 | 1337 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
5427046f | 1338 | |
73458fb7 NN |
1339 | # -------- |
1340 | # UNSORTED | |
1341 | # -------- | |
1342 | ||
73458fb7 | 1343 | |
4e70264f ZW |
1344 | # These libraries may be used by collect2. |
1345 | # We may need a special search path to get them linked. | |
1346 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1347 | [save_LIBS="$LIBS" | |
7f2749d4 | 1348 | for libs in '' -lld -lmld \ |
4e70264f ZW |
1349 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1350 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1351 | do | |
1352 | LIBS="$libs" | |
1353 | AC_TRY_LINK_FUNC(ldopen, | |
1354 | [gcc_cv_collect2_libs="$libs"; break]) | |
1355 | done | |
1356 | LIBS="$save_LIBS" | |
1357 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1358 | case $gcc_cv_collect2_libs in | |
1359 | "none required") ;; | |
1360 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1361 | esac | |
1362 | AC_SUBST(COLLECT2_LIBS) | |
1363 | ||
7f2749d4 RK |
1364 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1365 | # -lexc. So test for it. | |
1366 | save_LIBS="$LIBS" | |
1367 | LIBS= | |
1368 | AC_SEARCH_LIBS(exc_resume, exc) | |
1369 | GNAT_LIBEXC="$LIBS" | |
1370 | LIBS="$save_LIBS" | |
1371 | AC_SUBST(GNAT_LIBEXC) | |
1372 | ||
e3b3fa45 RO |
1373 | # To support -mcpu=native on Solaris/SPARC, we need libkstat. |
1374 | save_LIBS="$LIBS" | |
1375 | LIBS= | |
1376 | AC_SEARCH_LIBS(kstat_open, kstat) | |
1377 | EXTRA_GCC_LIBS="$LIBS" | |
1378 | LIBS="$save_LIBS" | |
1379 | AC_SUBST(EXTRA_GCC_LIBS) | |
1380 | ||
a20893cf RO |
1381 | # Solaris needs libsocket and libnsl for socket functions before 11.4. |
1382 | # C++ needs those for libcody. | |
1383 | save_LIBS="$LIBS" | |
1384 | LIBS= | |
1385 | AX_LIB_SOCKET_NSL | |
1386 | NETLIBS="$LIBS" | |
1387 | LIBS="$save_LIBS" | |
1388 | AC_SUBST(NETLIBS) | |
1389 | ||
62c9aa5f ZW |
1390 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1391 | # they're both in the same place. jcf-dump needs them. | |
1392 | save_LIBS="$LIBS" | |
1393 | LIBS= | |
1394 | AC_SEARCH_LIBS(ldexp, m) | |
1395 | LDEXP_LIB="$LIBS" | |
1396 | LIBS="$save_LIBS" | |
1397 | AC_SUBST(LDEXP_LIB) | |
1398 | ||
7431c1a1 AS |
1399 | # Some systems need dlopen |
1400 | save_LIBS="$LIBS" | |
1401 | LIBS= | |
1402 | AC_SEARCH_LIBS(dlopen, dl) | |
1403 | DL_LIB="$LIBS" | |
1404 | LIBS="$save_LIBS" | |
1405 | AC_SUBST(DL_LIB) | |
1406 | ||
7636d567 | 1407 | # Use <inttypes.h> only if it exists, |
35987ae9 RB |
1408 | # doesn't clash with <sys/types.h>, declares intmax_t and defines |
1409 | # PRId64 | |
7636d567 JW |
1410 | AC_MSG_CHECKING(for inttypes.h) |
1411 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
f04f1d2c | 1412 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
35987ae9 RB |
1413 | [[#define __STDC_FORMAT_MACROS |
1414 | #include <sys/types.h> | |
f04f1d2c | 1415 | #include <inttypes.h>]], |
35987ae9 RB |
1416 | [[intmax_t i = -1; |
1417 | #ifndef PRId64 | |
1418 | choke me | |
1419 | #endif]])], | |
9da0e39b | 1420 | [gcc_cv_header_inttypes_h=yes], |
f04f1d2c | 1421 | [gcc_cv_header_inttypes_h=no])]) |
7636d567 | 1422 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
9da0e39b | 1423 | if test $gcc_cv_header_inttypes_h = yes; then |
119d24d1 KG |
1424 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1425 | [Define if you have a working <inttypes.h> header file.]) | |
9da0e39b | 1426 | fi |
cdcc6a01 | 1427 | |
87741e51 ML |
1428 | # Look for the ZSTD package. |
1429 | ZSTD_INCLUDE= | |
1430 | ZSTD_LIB= | |
1431 | AC_SUBST(ZSTD_INCLUDE) | |
1432 | AC_SUBST(ZSTD_LIB) | |
1433 | ZSTD_CPPFLAGS= | |
1434 | ZSTD_LDFLAGS= | |
77625675 MK |
1435 | AC_SUBST(ZSTD_CPPFLAGS) |
1436 | AC_SUBST(ZSTD_LDFLAGS) | |
87741e51 ML |
1437 | AC_ARG_WITH(zstd, |
1438 | [AS_HELP_STRING([--with-zstd=PATH], | |
1439 | [specify prefix directory for installed zstd library. | |
1440 | Equivalent to --with-zstd-include=PATH/include | |
1441 | plus --with-zstd-lib=PATH/lib])]) | |
1442 | AC_ARG_WITH(zstd-include, | |
1443 | [AS_HELP_STRING([--with-zstd-include=PATH], | |
1444 | [specify directory for installed zstd include files])]) | |
1445 | AC_ARG_WITH(zstd-lib, | |
1446 | [AS_HELP_STRING([--with-zstd-lib=PATH], | |
1447 | [specify directory for the installed zstd library])]) | |
1448 | case "x$with_zstd" in | |
1449 | x) ;; | |
1450 | xno) | |
0fb0240a ML |
1451 | ZSTD_INCLUDE= |
1452 | ZSTD_LIB= | |
87741e51 ML |
1453 | ;; |
1454 | *) ZSTD_INCLUDE=$with_zstd/include | |
1455 | ZSTD_LIB=$with_zstd/lib | |
1456 | ;; | |
1457 | esac | |
0fb0240a ML |
1458 | |
1459 | if test "x$with_zstd" != xno; then | |
87741e51 ML |
1460 | if test "x$with_zstd_include" != x; then |
1461 | ZSTD_INCLUDE=$with_zstd_include | |
1462 | fi | |
1463 | if test "x$with_zstd_lib" != x; then | |
1464 | ZSTD_LIB=$with_zstd_lib | |
1465 | fi | |
1466 | if test "x$ZSTD_INCLUDE" != x \ | |
1467 | && test "x$ZSTD_INCLUDE" != xno; then | |
1468 | ZSTD_CPPFLAGS=-I$ZSTD_INCLUDE | |
1469 | fi | |
1470 | if test "x$ZSTD_LIB" != x \ | |
1471 | && test "x$ZSTD_LIB" != xno; then | |
1472 | ZSTD_LDFLAGS=-L$ZSTD_LIB | |
1473 | fi | |
1474 | ||
1475 | CXXFLAGS="$CXXFLAGS $ZSTD_CPPFLAGS" | |
1476 | LDFLAGS="$LDFLAGS $ZSTD_LDFLAGS" | |
1477 | ||
1478 | AC_MSG_CHECKING(for zstd.h) | |
1479 | AC_CACHE_VAL(gcc_cv_header_zstd_h, | |
6649df18 JW |
1480 | # We require version 1.3.0 or later. This is the first version that has |
1481 | # ZSTD_getFrameContentSize. | |
87741e51 | 1482 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
6649df18 JW |
1483 | [[#include <zstd.h> |
1484 | #if ZSTD_VERSION_NUMBER < 10300 | |
1485 | #error "need zstd 1.3.0 or better" | |
1486 | #endif]])], | |
87741e51 ML |
1487 | [gcc_cv_header_zstd_h=yes], |
1488 | [gcc_cv_header_zstd_h=no])]) | |
1489 | AC_MSG_RESULT($gcc_cv_header_zstd_h) | |
1490 | if test $gcc_cv_header_zstd_h = yes; then | |
1491 | AC_DEFINE(HAVE_ZSTD_H, 1, | |
1492 | [Define if you have a working <zstd.h> header file.]) | |
68c4570a | 1493 | elif test "x$with_zstd" != x; then |
0fb0240a | 1494 | as_fn_error $? "Unable to find zstd.h. See config.log for details." "$LINENO" 5 |
87741e51 ML |
1495 | fi |
1496 | ||
1497 | # LTO can use zstd compression algorithm | |
1498 | save_LIBS="$LIBS" | |
1499 | LIBS= | |
1500 | AC_SEARCH_LIBS(ZSTD_compress, zstd) | |
1501 | ZSTD_LIB="$LIBS" | |
1502 | LIBS="$save_LIBS" | |
1503 | AC_SUBST(ZSTD_LIB) | |
0fb0240a | 1504 | fi |
87741e51 | 1505 | |
9612ab65 ZW |
1506 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1507 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
c149cc37 | 1508 | |
0d667716 KG |
1509 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1510 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1511 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1512 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1513 | putchar_unlocked putc_unlocked) | |
384d8786 | 1514 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \ |
b6d94045 | 1515 | popen sysconf strsignal getrusage nl_langinfo \ |
e1f07131 NS |
1516 | gettimeofday mbstowcs wcswidth mmap posix_fallocate setlocale \ |
1517 | gcc_UNLOCKED_FUNCS madvise mallinfo mallinfo2 fstatat) | |
a81fb89e | 1518 | |
39f6c4c8 KW |
1519 | if test x$ac_cv_func_mbstowcs = xyes; then |
1520 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
f04f1d2c | 1521 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
39f6c4c8 KW |
1522 | int main() |
1523 | { | |
1524 | mbstowcs(0, "", 0); | |
1525 | return 0; | |
f04f1d2c KC |
1526 | }]])], |
1527 | [gcc_cv_func_mbstowcs_works=yes], | |
1528 | [gcc_cv_func_mbstowcs_works=no], | |
1529 | [gcc_cv_func_mbstowcs_works=yes])]) | |
39f6c4c8 KW |
1530 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1531 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1532 | [Define this macro if mbstowcs does not crash when its | |
1533 | first argument is NULL.]) | |
1534 | fi | |
1535 | fi | |
1536 | ||
78c9cb99 | 1537 | AC_CHECK_TYPE(ssize_t, int) |
bba09b5a | 1538 | AC_CHECK_TYPE(caddr_t, char *) |
e1f07131 NS |
1539 | AC_CHECK_TYPE(sighander_t, |
1540 | AC_DEFINE(HAVE_SIGHANDLER_T, 1, | |
1541 | [Define if <sys/signal.h> defines sighandler_t]), | |
1542 | ,signal.h) | |
56f48ce9 | 1543 | |
2f6935f4 | 1544 | GCC_AC_FUNC_MMAP_BLACKLIST |
b27d2bd5 MK |
1545 | |
1546 | case "${host}" in | |
ee262b6f | 1547 | *-*-*vms*) |
2c55543b | 1548 | # Under VMS, vfork works very differently than on Unix. The standard test |
ee262b6f DR |
1549 | # won't work, and it isn't easily adaptable. It makes more sense to |
1550 | # just force it. | |
1551 | ac_cv_func_vfork_works=yes | |
1552 | ;; | |
b27d2bd5 | 1553 | esac |
f04f1d2c | 1554 | AC_FUNC_FORK |
f1b54f9b | 1555 | |
0823efed | 1556 | AM_ICONV |
5b6d595b | 1557 | |
56694dd9 ZW |
1558 | # Until we have in-tree GNU iconv: |
1559 | LIBICONV_DEP= | |
bf5372e7 YS |
1560 | if test -f "$LTLIBICONV"; then |
1561 | LIBICONV_DEP=$LTLIBICONV | |
1562 | fi | |
56694dd9 ZW |
1563 | AC_SUBST(LIBICONV_DEP) |
1564 | ||
1565 | AM_LC_MESSAGES | |
f91abfce | 1566 | |
a03ea89b BM |
1567 | AM_LANGINFO_CODESET |
1568 | ||
86cf1cbd KG |
1569 | # We will need to find libiberty.h and ansidecl.h |
1570 | saved_CFLAGS="$CFLAGS" | |
b8f6a302 | 1571 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
87fb500b | 1572 | saved_CXXFLAGS="$CXXFLAGS" |
b8f6a302 | 1573 | CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
13ccfea8 JM |
1574 | |
1575 | # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the | |
1576 | # normal autoconf function for these. But force definition of | |
1577 | # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre | |
1578 | # basename handling in libiberty.h. | |
1579 | AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[ | |
1580 | #undef HAVE_DECL_BASENAME | |
1581 | #define HAVE_DECL_BASENAME 1 | |
1582 | #include "ansidecl.h" | |
1583 | #include "system.h"]) | |
1584 | ||
384d8786 | 1585 | gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \ |
13ccfea8 | 1586 | madvise stpcpy strnlen strsignal strverscmp \ |
297c364d | 1587 | strtol strtoul strtoll strtoull setenv unsetenv \ |
ed5b9f96 | 1588 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ |
13ccfea8 | 1589 | free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[ |
d02af173 | 1590 | #include "ansidecl.h" |
86cf1cbd | 1591 | #include "system.h"]) |
c5c76735 | 1592 | |
f31e826b | 1593 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
d02af173 | 1594 | #include "ansidecl.h" |
86cf1cbd | 1595 | #include "system.h" |
d2cabf16 KG |
1596 | #ifdef HAVE_SYS_RESOURCE_H |
1597 | #include <sys/resource.h> | |
1598 | #endif | |
1599 | ]) | |
1600 | ||
5187b01a | 1601 | gcc_AC_CHECK_DECLS(mallinfo mallinfo2, , ,[ |
c9ef0409 JH |
1602 | #include "ansidecl.h" |
1603 | #include "system.h" | |
1604 | #ifdef HAVE_MALLOC_H | |
1605 | #include <malloc.h> | |
1606 | #endif | |
1607 | ]) | |
1608 | ||
f04f1d2c | 1609 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
b2522d2b HPN |
1610 | #include "ansidecl.h" |
1611 | #include "system.h" | |
1612 | #ifdef HAVE_SYS_RESOURCE_H | |
1613 | #include <sys/resource.h> | |
1614 | #endif | |
f04f1d2c | 1615 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
236ec2d7 | 1616 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
b2522d2b | 1617 | |
2102b2fe RS |
1618 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1619 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
e53b6e56 | 1620 | # in collect2.cc, <fcntl.h> isn't visible, but the configure test below needs |
2102b2fe | 1621 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. |
351df804 KG |
1622 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1623 | #include "ansidecl.h" | |
1624 | #include "system.h" | |
1625 | #ifdef HAVE_LDFCN_H | |
2102b2fe RS |
1626 | #undef FREAD |
1627 | #undef FWRITE | |
351df804 KG |
1628 | #include <ldfcn.h> |
1629 | #endif | |
1630 | ]) | |
1631 | ||
c1800ec8 ZW |
1632 | gcc_AC_CHECK_DECLS(times, , ,[ |
1633 | #include "ansidecl.h" | |
1634 | #include "system.h" | |
1635 | #ifdef HAVE_SYS_TIMES_H | |
1636 | #include <sys/times.h> | |
1637 | #endif | |
1638 | ]) | |
1639 | ||
4f6d8cc8 GK |
1640 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1641 | #include "ansidecl.h" | |
1642 | #include "system.h" | |
1643 | #include <signal.h> | |
1644 | ]) | |
1645 | ||
c1800ec8 ZW |
1646 | # More time-related stuff. |
1647 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
f04f1d2c | 1648 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1649 | #include "ansidecl.h" |
1650 | #include "system.h" | |
1651 | #ifdef HAVE_SYS_TIMES_H | |
1652 | #include <sys/times.h> | |
1653 | #endif | |
f04f1d2c | 1654 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c1800ec8 ZW |
1655 | if test $ac_cv_struct_tms = yes; then |
1656 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1657 | [Define if <sys/times.h> defines struct tms.]) | |
1658 | fi | |
1659 | ||
1660 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1661 | # revisit after autoconf 2.50. | |
1662 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
f04f1d2c | 1663 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1664 | #include "ansidecl.h" |
1665 | #include "system.h" | |
f04f1d2c | 1666 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c1800ec8 ZW |
1667 | if test $gcc_cv_type_clock_t = yes; then |
1668 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1669 | [Define if <time.h> defines clock_t.]) | |
1670 | fi | |
1671 | ||
c1736aea TJ |
1672 | # Check if F_SETLKW is supported by fcntl. |
1673 | AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [ | |
1674 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1675 | #include <fcntl.h>]], [[ | |
1676 | struct flock fl; | |
1677 | fl.l_whence = 0; | |
1678 | fl.l_start = 0; | |
1679 | fl.l_len = 0; | |
1680 | fl.l_pid = 0; | |
1681 | return fcntl (1, F_SETLKW, &fl);]])], | |
1682 | [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])]) | |
1683 | if test $ac_cv_f_setlkw = yes; then | |
1684 | AC_DEFINE(HOST_HAS_F_SETLKW, 1, | |
1685 | [Define if F_SETLKW supported by fcntl.]) | |
1686 | fi | |
1687 | ||
e1f07131 NS |
1688 | # Check if O_CLOEXEC is defined by fcntl |
1689 | AC_CACHE_CHECK(for O_CLOEXEC, ac_cv_o_cloexec, [ | |
1690 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1691 | #include <fcntl.h>]], [[ | |
1692 | return open ("/dev/null", O_RDONLY | O_CLOEXEC);]])], | |
1693 | [ac_cv_o_cloexec=yes],[ac_cv_o_cloexec=no])]) | |
1694 | if test $ac_cv_o_cloexec = yes; then | |
1695 | AC_DEFINE(HOST_HAS_O_CLOEXEC, 1, | |
1696 | [Define if O_CLOEXEC supported by fcntl.]) | |
1697 | fi | |
1698 | ||
1699 | # C++ Modules would like some networking features to provide the mapping | |
1700 | # server. You can still use modules without them though. | |
1701 | # The following network-related checks could probably do with some | |
1702 | # Windows and other non-linux defenses and checking. | |
1703 | ||
1704 | # Local socket connectivity wants AF_UNIX networking | |
1705 | # Check for AF_UNIX networking | |
1706 | AC_CACHE_CHECK(for AF_UNIX, ac_cv_af_unix, [ | |
1707 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1708 | #include <sys/types.h> | |
1709 | #include <sys/socket.h> | |
1710 | #include <sys/un.h> | |
1711 | #include <netinet/in.h>]],[[ | |
1712 | sockaddr_un un; | |
1713 | un.sun_family = AF_UNSPEC; | |
1714 | int fd = socket (AF_UNIX, SOCK_STREAM, 0); | |
1715 | connect (fd, (sockaddr *)&un, sizeof (un));]])], | |
1716 | [ac_cv_af_unix=yes], | |
1717 | [ac_cv_af_unix=no])]) | |
1718 | if test $ac_cv_af_unix = yes; then | |
1719 | AC_DEFINE(HAVE_AF_UNIX, 1, | |
1720 | [Define if AF_UNIX supported.]) | |
1721 | fi | |
1722 | ||
1723 | # Remote socket connectivity wants AF_INET6 networking | |
1724 | # Check for AF_INET6 networking | |
1725 | AC_CACHE_CHECK(for AF_INET6, ac_cv_af_inet6, [ | |
1726 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1727 | #include <sys/types.h> | |
1728 | #include <sys/socket.h> | |
1729 | #include <netinet/in.h> | |
1730 | #include <netdb.h>]],[[ | |
1731 | sockaddr_in6 in6; | |
1732 | in6.sin6_family = AF_UNSPEC; | |
1733 | struct addrinfo *addrs = 0; | |
1734 | struct addrinfo hints; | |
1735 | hints.ai_flags = 0; | |
1736 | hints.ai_family = AF_INET6; | |
1737 | hints.ai_socktype = SOCK_STREAM; | |
1738 | hints.ai_protocol = 0; | |
1739 | hints.ai_canonname = 0; | |
1740 | hints.ai_addr = 0; | |
1741 | hints.ai_next = 0; | |
1742 | int e = getaddrinfo ("localhost", 0, &hints, &addrs); | |
1743 | const char *str = gai_strerror (e); | |
1744 | freeaddrinfo (addrs); | |
1745 | int fd = socket (AF_INET6, SOCK_STREAM, 0); | |
1746 | connect (fd, (sockaddr *)&in6, sizeof (in6));]])], | |
1747 | [ac_cv_af_inet6=yes], | |
1748 | [ac_cv_af_inet6=no])]) | |
1749 | if test $ac_cv_af_inet6 = yes; then | |
1750 | AC_DEFINE(HAVE_AF_INET6, 1, | |
1751 | [Define if AF_INET6 supported.]) | |
1752 | fi | |
1753 | ||
9ec469f5 EB |
1754 | # Check if _LK_LOCK is supported by _locking |
1755 | AC_CACHE_CHECK(for _LK_LOCK, ac_cv_lk_lock, [ | |
1756 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1757 | #include <io.h> | |
1758 | #include <sys/locking.h>]], [[ | |
1759 | int fd; | |
1760 | return _locking (fd, _LK_LOCK, 0);]])], | |
1761 | [ac_cv_lk_lock=yes],[ac_cv_lk_lock=no])]) | |
1762 | if test $ac_cv_lk_lock = yes; then | |
1763 | AC_DEFINE(HOST_HAS_LK_LOCK, 1, | |
1764 | [Define if _LK_LOC supported by _locking.]) | |
1765 | fi | |
1766 | ||
87fb500b | 1767 | # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
86cf1cbd | 1768 | CFLAGS="$saved_CFLAGS" |
87fb500b | 1769 | CXXFLAGS="$saved_CXXFLAGS" |
86cf1cbd | 1770 | |
75923b2f | 1771 | # mkdir takes a single argument on some systems. |
99e757d5 | 1772 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
75923b2f | 1773 | |
46f18e7b RK |
1774 | # File extensions |
1775 | manext='.1' | |
1776 | objext='.o' | |
46f18e7b RK |
1777 | AC_SUBST(manext) |
1778 | AC_SUBST(objext) | |
46f18e7b | 1779 | |
4977bab6 ZW |
1780 | # With Setjmp/Longjmp based exception handling. |
1781 | AC_ARG_ENABLE(sjlj-exceptions, | |
b88ecf55 AS |
1782 | [AS_HELP_STRING([--enable-sjlj-exceptions], |
1783 | [arrange to use setjmp/longjmp exception handling])], | |
399fe3e1 JDA |
1784 | [case $target in |
1785 | *-*-hpux10*) | |
1786 | if test $enableval != yes; then | |
1787 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1788 | enableval=yes | |
1789 | fi | |
1790 | ;; | |
1791 | esac | |
1792 | force_sjlj_exceptions=yes], | |
1793 | [case $target in | |
1794 | *-*-hpux10*) | |
1795 | force_sjlj_exceptions=yes | |
1796 | enableval=yes | |
1797 | ;; | |
9b0af790 JB |
1798 | lm32*-*-*) |
1799 | force_sjlj_exceptions=yes | |
1800 | enableval=yes | |
1801 | ;; | |
399fe3e1 JDA |
1802 | *) |
1803 | force_sjlj_exceptions=no | |
1804 | ;; | |
1805 | esac]) | |
1806 | if test $force_sjlj_exceptions = yes; then | |
1807 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1808 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1809 | [Define 0/1 to force the choice for exception handling model.]) | |
1810 | fi | |
4977bab6 | 1811 | |
34a86c2b NN |
1812 | # -------------------------------------------------------- |
1813 | # Build, host, and target specific configuration fragments | |
1814 | # -------------------------------------------------------- | |
1815 | ||
5b28c537 | 1816 | # Collect build-machine-specific information. |
2c811fd3 | 1817 | . ${srcdir}/config.build || exit 1 |
5b28c537 | 1818 | |
a89ea0df | 1819 | # Collect host-machine-specific information. |
2c811fd3 | 1820 | . ${srcdir}/config.host || exit 1 |
a89ea0df | 1821 | |
ef69da62 | 1822 | target_gtfiles= |
a89ea0df NN |
1823 | |
1824 | # Collect target-machine-specific information. | |
2c811fd3 | 1825 | . ${srcdir}/config.gcc || exit 1 |
46f18e7b RK |
1826 | |
1827 | extra_objs="${host_extra_objs} ${extra_objs}" | |
30500d84 | 1828 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
46f18e7b RK |
1829 | |
1830 | # Default the target-machine variables that were not explicitly set. | |
75bffa71 | 1831 | if test x"$tm_file" = x |
46f18e7b RK |
1832 | then tm_file=$cpu_type/$cpu_type.h; fi |
1833 | ||
6b2adea9 | 1834 | if test x"$extra_headers" = x |
46f18e7b RK |
1835 | then extra_headers=; fi |
1836 | ||
75bffa71 | 1837 | if test x$md_file = x |
e98e406f | 1838 | then md_file=$cpu_type/$cpu_type.md; fi |
46f18e7b | 1839 | |
75bffa71 | 1840 | if test x$out_file = x |
cd9912b5 | 1841 | then out_file=$cpu_type/$cpu_type.cc; fi |
46f18e7b | 1842 | |
75bffa71 | 1843 | if test x"$tmake_file" = x |
46f18e7b RK |
1844 | then tmake_file=$cpu_type/t-$cpu_type |
1845 | fi | |
1846 | ||
e9c9f128 JJ |
1847 | # Support --enable-initfini-array. |
1848 | if test x$enable_initfini_array != xno; then | |
1849 | tm_file="${tm_file} initfini-array.h" | |
1850 | fi | |
1851 | ||
90e6a802 | 1852 | if test x"$dwarf2" = xyes |
756ee602 | 1853 | then tm_file="$tm_file tm-dwarf2.h" |
90e6a802 RL |
1854 | fi |
1855 | ||
46f18e7b | 1856 | # Say what files are being used for the output code and MD file. |
11642c3a | 1857 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
46f18e7b RK |
1858 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1859 | ||
11642c3a | 1860 | # If any of the xm_file variables contain nonexistent files, warn |
4dc0535b ZW |
1861 | # about them and drop them. |
1862 | ||
11642c3a ZW |
1863 | bx= |
1864 | for x in $build_xm_file; do | |
1865 | if test -f $srcdir/config/$x | |
1866 | then bx="$bx $x" | |
11642c3a ZW |
1867 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1868 | fi | |
1869 | done | |
1870 | build_xm_file="$bx" | |
1871 | ||
1872 | hx= | |
1873 | for x in $host_xm_file; do | |
1874 | if test -f $srcdir/config/$x | |
1875 | then hx="$hx $x" | |
11642c3a ZW |
1876 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1877 | fi | |
1878 | done | |
1879 | host_xm_file="$hx" | |
1880 | ||
1881 | tx= | |
1882 | for x in $xm_file; do | |
1883 | if test -f $srcdir/config/$x | |
1884 | then tx="$tx $x" | |
11642c3a ZW |
1885 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1886 | fi | |
1887 | done | |
1888 | xm_file="$tx" | |
1889 | ||
46f18e7b RK |
1890 | count=a |
1891 | for f in $tm_file; do | |
1892 | count=${count}x | |
1893 | done | |
75bffa71 | 1894 | if test $count = ax; then |
46f18e7b RK |
1895 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1896 | else | |
1897 | echo "Using the following target machine macro files:" | |
1898 | for f in $tm_file; do | |
1899 | echo " $srcdir/config/$f" | |
1900 | done | |
1901 | fi | |
1902 | ||
99fa8911 AP |
1903 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1904 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
edf6ddf6 | 1905 | [Define to 1 if the 'long long' type is wider than 'long' but still |
99fa8911 AP |
1906 | efficiently supported by the host hardware.]) |
1907 | fi | |
1908 | ||
b993039f EB |
1909 | gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi` |
1910 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.]) | |
1911 | ||
1912 | gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi` | |
1913 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.]) | |
1914 | ||
46f18e7b RK |
1915 | count=a |
1916 | for f in $host_xm_file; do | |
1917 | count=${count}x | |
1918 | done | |
11642c3a ZW |
1919 | if test $count = a; then |
1920 | : | |
1921 | elif test $count = ax; then | |
46f18e7b RK |
1922 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1923 | else | |
1924 | echo "Using the following host machine macro files:" | |
1925 | for f in $host_xm_file; do | |
1926 | echo " $srcdir/config/$f" | |
1927 | done | |
1928 | fi | |
476d9098 | 1929 | echo "Using ${out_host_hook_obj} for host machine hooks." |
46f18e7b | 1930 | |
75bffa71 | 1931 | if test "$host_xm_file" != "$build_xm_file"; then |
46f18e7b RK |
1932 | count=a |
1933 | for f in $build_xm_file; do | |
1934 | count=${count}x | |
1935 | done | |
11642c3a ZW |
1936 | if test $count = a; then |
1937 | : | |
1938 | elif test $count = ax; then | |
46f18e7b RK |
1939 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1940 | else | |
1941 | echo "Using the following build machine macro files:" | |
1942 | for f in $build_xm_file; do | |
1943 | echo " $srcdir/config/$f" | |
1944 | done | |
1945 | fi | |
1946 | fi | |
1947 | ||
08b2bad2 SB |
1948 | if test -n "$configured_native_system_header_dir"; then |
1949 | native_system_header_dir=$configured_native_system_header_dir | |
1950 | fi | |
1951 | NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir" | |
1952 | AC_SUBST(NATIVE_SYSTEM_HEADER_DIR) | |
1953 | ||
4f6d8cc8 | 1954 | case ${host} in |
b8ec3cc8 | 1955 | powerpc*-*-darwin*) |
4f6d8cc8 GK |
1956 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1957 | gcc_cv_mcontext_underscores, | |
22e05272 | 1958 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
ba7da42a | 1959 | #include <sys/cdefs.h> |
de4fb767 | 1960 | #include <sys/signal.h> |
4f6d8cc8 GK |
1961 | #include <ucontext.h> |
1962 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
22e05272 | 1963 | ])], |
4f6d8cc8 GK |
1964 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) |
1965 | if test $gcc_cv_mcontext_underscores = yes; then | |
1966 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1967 | [mcontext_t fields start with __]) | |
1968 | fi | |
1969 | ;; | |
1970 | esac | |
1971 | ||
8bb915b6 NN |
1972 | # --------- |
1973 | # Threading | |
1974 | # --------- | |
1975 | ||
c2e494a8 | 1976 | # Check if a valid thread package |
615be2cf | 1977 | case ${enable_threads} in |
c2e494a8 NN |
1978 | "" | no) |
1979 | # No threads | |
1980 | target_thread_file='single' | |
1981 | ;; | |
1982 | yes) | |
1983 | # default | |
1984 | target_thread_file='single' | |
1985 | ;; | |
ddaad3c8 | 1986 | aix | dce | lynx | mipssde | posix | rtems | \ |
da90c957 | 1987 | single | tpf | vxworks | win32) |
615be2cf | 1988 | target_thread_file=${enable_threads} |
c2e494a8 NN |
1989 | ;; |
1990 | *) | |
615be2cf | 1991 | echo "${enable_threads} is an unknown thread package" 1>&2 |
c2e494a8 NN |
1992 | exit 1 |
1993 | ;; | |
1994 | esac | |
1995 | ||
1996 | if test x${thread_file} = x; then | |
1997 | # No thread file set by target-specific clauses in config.gcc, | |
1998 | # so use file chosen by default logic above | |
1999 | thread_file=${target_thread_file} | |
46f18e7b | 2000 | fi |
46f18e7b | 2001 | |
8bb915b6 NN |
2002 | # -------- |
2003 | # UNSORTED | |
2004 | # -------- | |
2005 | ||
18fbf599 | 2006 | use_cxa_atexit=no |
2121a768 JT |
2007 | if test x$enable___cxa_atexit = xyes || \ |
2008 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
18fbf599 | 2009 | if test x$host = x$target; then |
97388150 DS |
2010 | case $host in |
2011 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
2012 | # keyed to flag_use_cxa_atexit | |
2013 | *-*-mingw32*) | |
2014 | use_cxa_atexit=yes | |
2015 | ;; | |
99113dff DE |
2016 | powerpc-ibm-aix*) |
2017 | use_cxa_atexit=yes | |
2018 | ;; | |
97388150 DS |
2019 | *) |
2020 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
2021 | [echo "__cxa_atexit can't be enabled on this target"]) | |
5f60e48f | 2022 | ;; |
97388150 | 2023 | esac |
18fbf599 PB |
2024 | else |
2025 | # We can't check for __cxa_atexit when building a cross, so assume | |
2026 | # it is available | |
2027 | use_cxa_atexit=yes | |
2028 | fi | |
2029 | if test x$use_cxa_atexit = xyes; then | |
c7b5e395 | 2030 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
18fbf599 PB |
2031 | [Define if you want to use __cxa_atexit, rather than atexit, to |
2032 | register C++ destructors for local statics and global objects. | |
2033 | This is essential for fully standards-compliant handling of | |
2034 | destructors, but requires __cxa_atexit in libc.]) | |
2035 | fi | |
2121a768 JT |
2036 | fi |
2037 | ||
a5381466 | 2038 | # Look for a file containing extra machine modes. |
1c0ca89d ZW |
2039 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
2040 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
a5381466 | 2041 | AC_SUBST(extra_modes_file) |
e22340b0 | 2042 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
a5381466 ZW |
2043 | [Define to the name of a file containing a list of extra machine modes |
2044 | for this architecture.]) | |
a5381466 ZW |
2045 | fi |
2046 | ||
75685792 RS |
2047 | # Convert extra_options into a form suitable for Makefile use. |
2048 | extra_opt_files= | |
fd438373 | 2049 | all_opt_files= |
75685792 RS |
2050 | for f in $extra_options; do |
2051 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
fd438373 | 2052 | all_opt_files="$all_opt_files $srcdir/config/$f" |
75685792 RS |
2053 | done |
2054 | AC_SUBST(extra_opt_files) | |
2055 | ||
b7cb92ad | 2056 | # auto-host.h is the file containing items generated by autoconf and is |
e9a25f70 | 2057 | # the first file included by config.h. |
4977bab6 | 2058 | # If host=build, it is correct to have bconfig include auto-host.h |
db81d74a RH |
2059 | # as well. If host!=build, we are in error and need to do more |
2060 | # work to find out the build config parameters. | |
75bffa71 | 2061 | if test x$host = x$build |
db81d74a | 2062 | then |
eaf4e618 | 2063 | build_auto=auto-host.h |
499d66aa | 2064 | HAVE_AUTO_BUILD='# ' |
b7cb92ad JL |
2065 | else |
2066 | # We create a subdir, then run autoconf in the subdir. | |
2067 | # To prevent recursion we set host and build for the new | |
2068 | # invocation of configure to the build for this invocation | |
2069 | # of configure. | |
2070 | tempdir=build.$$ | |
2071 | rm -rf $tempdir | |
2072 | mkdir $tempdir | |
2073 | cd $tempdir | |
2074 | case ${srcdir} in | |
b86ecfa9 | 2075 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
b7cb92ad JL |
2076 | *) realsrcdir=../${srcdir};; |
2077 | esac | |
2ceb362d AM |
2078 | # Clearing GMPINC is necessary to prevent host headers being |
2079 | # used by the build compiler. Defining GENERATOR_FILE stops | |
2080 | # system.h from including gmp.h. | |
d920e825 | 2081 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ |
2ceb362d AM |
2082 | CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \ |
2083 | LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
84401ce5 | 2084 | GMPINC="" CPPFLAGS="${CPPFLAGS_FOR_BUILD} -DGENERATOR_FILE" \ |
d920e825 | 2085 | ${realsrcdir}/configure \ |
33e70558 | 2086 | --enable-languages=${enable_languages-all} \ |
499d66aa AO |
2087 | ${enable_obsolete+--enable-obsolete="$enable_obsolete"} \ |
2088 | ${enable_option_checking+--enable-option-checking="$enable_option_checking"} \ | |
2089 | --target=$target_alias --host=$build_alias \ | |
2090 | --build=$build_alias || exit # retaining $tempdir | |
b7cb92ad JL |
2091 | |
2092 | # We just finished tests for the build machine, so rename | |
2093 | # the file auto-build.h in the gcc directory. | |
2094 | mv auto-host.h ../auto-build.h | |
2095 | cd .. | |
2096 | rm -rf $tempdir | |
eaf4e618 | 2097 | build_auto=auto-build.h |
499d66aa | 2098 | HAVE_AUTO_BUILD= |
db81d74a | 2099 | fi |
71b5d516 | 2100 | AC_SUBST(build_subdir) |
499d66aa | 2101 | AC_SUBST(HAVE_AUTO_BUILD) |
db81d74a | 2102 | |
eaf4e618 | 2103 | tm_file="${tm_file} defaults.h" |
4977bab6 | 2104 | tm_p_file="${tm_p_file} tm-preds.h" |
b4c522fa | 2105 | tm_d_file="${tm_d_file} defaults.h" |
4977bab6 ZW |
2106 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" |
2107 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
49691411 | 2108 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
b4862477 | 2109 | # put this back in temporarily. |
232b67d9 | 2110 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
0056a9b5 | 2111 | |
34a86c2b NN |
2112 | # -------- |
2113 | # UNSORTED | |
2114 | # -------- | |
2115 | ||
afabd8e6 | 2116 | changequote(,)dnl |
cc1e60ea | 2117 | # Compile in configure arguments. |
8105825d | 2118 | if test -f configargs.h ; then |
cc1e60ea | 2119 | # Being re-configured. |
022dae81 | 2120 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
54de7d7d JJ |
2121 | gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'` |
2122 | if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then | |
2123 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
2124 | fi | |
cc1e60ea JM |
2125 | else |
2126 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
2127 | fi | |
eeae7b41 DJ |
2128 | |
2129 | # Double all backslashes and backslash all quotes to turn | |
2130 | # gcc_config_arguments into a C string. | |
2131 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
2132 | $gcc_config_arguments | |
2133 | EOF | |
2134 | gcc_config_arguments_str=`cat conftest.out` | |
2135 | rm -f conftest.out | |
2136 | ||
cc1e60ea JM |
2137 | cat > configargs.h <<EOF |
2138 | /* Generated automatically. */ | |
eeae7b41 | 2139 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
a6687d2b | 2140 | static const char thread_model[] = "$thread_file"; |
7816bea0 DJ |
2141 | |
2142 | static const struct { | |
2143 | const char *name, *value; | |
2144 | } configure_default_options[] = $configure_default_options; | |
cc1e60ea | 2145 | EOF |
75bffa71 | 2146 | changequote([,])dnl |
46f18e7b | 2147 | |
0c463e16 | 2148 | changequote(,)dnl |
40540e68 RAE |
2149 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
2150 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
2151 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
0c463e16 | 2152 | if test -f $srcdir/REVISION ; then |
40540e68 | 2153 | gcc_REVISION=`cat $srcdir/REVISION` |
0c463e16 RAE |
2154 | else |
2155 | gcc_REVISION="" | |
2156 | fi | |
2157 | cat > plugin-version.h <<EOF | |
2158 | #include "configargs.h" | |
2159 | ||
bf588455 BS |
2160 | #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'` |
2161 | #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'` | |
2162 | #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'` | |
2163 | #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR) | |
2164 | ||
0c463e16 RAE |
2165 | static char basever[] = "$gcc_BASEVER"; |
2166 | static char datestamp[] = "$gcc_DATESTAMP"; | |
2167 | static char devphase[] = "$gcc_DEVPHASE"; | |
2168 | static char revision[] = "$gcc_REVISION"; | |
2169 | ||
2170 | /* FIXME plugins: We should make the version information more precise. | |
2171 | One way to do is to add a checksum. */ | |
2172 | ||
2173 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
2174 | devphase, revision, | |
2175 | configuration_arguments}; | |
2176 | EOF | |
2177 | changequote([,])dnl | |
2178 | ||
3c36aa6b JJ |
2179 | # Determine what GCC version number to use in filesystem paths. |
2180 | GCC_BASE_VER | |
2181 | ||
ab87f8c8 | 2182 | # Internationalization |
56694dd9 | 2183 | ZW_GNU_GETTEXT_SISTER_DIR |
dc6746e7 | 2184 | |
56694dd9 ZW |
2185 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
2186 | # -liconv on the link line twice. | |
2187 | case "$LIBINTL" in *$LIBICONV*) | |
2188 | LIBICONV= ;; | |
2189 | esac | |
ab87f8c8 | 2190 | |
7f970b70 | 2191 | AC_ARG_ENABLE(secureplt, |
b88ecf55 AS |
2192 | [AS_HELP_STRING([--enable-secureplt], |
2193 | [enable -msecure-plt by default for PowerPC])], | |
7f970b70 AM |
2194 | [], []) |
2195 | ||
446163e2 TP |
2196 | AC_ARG_ENABLE(mingw-wildcard, |
2197 | [AS_HELP_STRING([--enable-mingw-wildcard], | |
2198 | [Set whether to expand wildcard on command-line. | |
2199 | Default to platform configuration])], | |
2200 | [],[enable_mingw_wildcard=platform]) | |
2201 | AS_IF([test x"$enable_mingw_wildcard" != xplatform ], | |
2202 | [AC_DEFINE_UNQUOTED(MINGW_DOWILDCARD, | |
2203 | $(test x"$enable_mingw_wildcard" = xno; echo $?), | |
2204 | [Value to set mingw's _dowildcard to.])]) | |
2205 | ||
67aeaded AO |
2206 | AC_ARG_ENABLE(large-address-aware, |
2207 | [AS_HELP_STRING([--enable-large-address-aware], | |
2208 | [Link mingw executables with --large-address-aware])]) | |
2209 | AS_IF([test x"$enable_large_address_aware" = xyes], | |
2210 | [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1, | |
2211 | [Define if we should link mingw executables with --large-address-aware])]) | |
2212 | ||
ad211091 KT |
2213 | AC_ARG_ENABLE(leading-mingw64-underscores, |
2214 | AS_HELP_STRING([--enable-leading-mingw64-underscores], | |
b88ecf55 | 2215 | [enable leading underscores on 64 bit mingw targets]), |
ad211091 KT |
2216 | [],[]) |
2217 | AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ], | |
2218 | [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1, | |
2219 | [Define if we should use leading underscore on 64 bit mingw targets])]) | |
2220 | ||
922e3e33 | 2221 | AC_ARG_ENABLE(cld, |
b88ecf55 | 2222 | [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [], |
922e3e33 UB |
2223 | [enable_cld=no]) |
2224 | ||
d79389af | 2225 | AC_ARG_ENABLE(frame-pointer, |
b88ecf55 | 2226 | [AS_HELP_STRING([--enable-frame-pointer], |
fd661a34 | 2227 | [enable -fno-omit-frame-pointer by default for x86])], [], |
d79389af L |
2228 | [ |
2229 | case $target_os in | |
6221eb9d | 2230 | linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*) |
7d48b7ad | 2231 | # Enable -fomit-frame-pointer by default for these systems with DWARF2. |
d79389af L |
2232 | enable_frame_pointer=no |
2233 | ;; | |
2234 | *) | |
2235 | enable_frame_pointer=yes | |
2236 | ;; | |
2237 | esac | |
2238 | ]) | |
2239 | ||
fd661a34 UB |
2240 | case $target in |
2241 | i[[34567]]86-*-* | x86_64-*-*) | |
2242 | if test "x$enable_cld" = xyes; then | |
2243 | tm_defines="${tm_defines} USE_IX86_CLD=1" | |
2244 | fi | |
2245 | if test "x$enable_frame_pointer" = xyes; then | |
2246 | tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1" | |
2247 | fi | |
2248 | ;; | |
2249 | esac | |
2250 | ||
f4ab28e3 MK |
2251 | # Windows32 Registry support for specifying GCC installation paths. |
2252 | AC_ARG_ENABLE(win32-registry, | |
b88ecf55 AS |
2253 | [AS_HELP_STRING([--disable-win32-registry], |
2254 | [disable lookup of installation paths in the | |
2255 | Registry on Windows hosts]) | |
2256 | AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)]) | |
2257 | AS_HELP_STRING([--enable-win32-registry=KEY], | |
2258 | [use KEY instead of GCC version as the last portion | |
2259 | of the registry key])],,) | |
a1286ef5 | 2260 | |
4e70264f | 2261 | case $host_os in |
abe64d9e | 2262 | win32 | pe | cygwin* | mingw32*) |
a1286ef5 ZW |
2263 | if test "x$enable_win32_registry" != xno; then |
2264 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
2265 | fi | |
f4ab28e3 | 2266 | |
a1286ef5 ZW |
2267 | if test "x$enable_win32_registry" != xno; then |
2268 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
2269 | [Define to 1 if installation paths should be looked up in the Windows | |
2270 | Registry. Ignored on non-Windows hosts.]) | |
2271 | ||
2272 | if test "x$enable_win32_registry" != xyes \ | |
2273 | && test "x$enable_win32_registry" != x; then | |
2274 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
2275 | [Define to be the last component of the Windows registry key under which | |
2276 | to look for installation paths. The full key used will be | |
2277 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
2278 | The default is the GCC version number.]) | |
2279 | fi | |
2280 | fi | |
f4ab28e3 MK |
2281 | ;; |
2282 | esac | |
2283 | ||
7fa10b25 | 2284 | # Get an absolute path to the GCC top-level source directory |
1e6347d8 | 2285 | holddir=`${PWDCMD-pwd}` |
7fa10b25 | 2286 | cd $srcdir |
1e6347d8 | 2287 | topdir=`${PWDCMD-pwd}` |
7fa10b25 RK |
2288 | cd $holddir |
2289 | ||
af5e4ada | 2290 | # Conditionalize the makefile for this host machine. |
2ed26f6b | 2291 | xmake_file= |
c406e779 | 2292 | for f in ${host_xmake_file} |
94f42018 | 2293 | do |
75bffa71 | 2294 | if test -f ${srcdir}/config/$f |
94f42018 | 2295 | then |
2ed26f6b | 2296 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
94f42018 DE |
2297 | fi |
2298 | done | |
46f18e7b | 2299 | |
af5e4ada | 2300 | # Conditionalize the makefile for this target machine. |
2ed26f6b | 2301 | tmake_file_= |
c406e779 | 2302 | for f in ${tmake_file} |
94f42018 | 2303 | do |
75bffa71 | 2304 | if test -f ${srcdir}/config/$f |
94f42018 | 2305 | then |
2ed26f6b | 2306 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
94f42018 DE |
2307 | fi |
2308 | done | |
d228ee80 | 2309 | tmake_file="${tmake_file_}${omp_device_property_tmake_file}" |
5891b37d | 2310 | |
cd9912b5 ML |
2311 | out_object_file=`basename $out_file .cc`.o |
2312 | common_out_object_file=`basename $common_out_file .cc`.o | |
5891b37d | 2313 | |
75685792 | 2314 | tm_file_list="options.h" |
f938f60c | 2315 | tm_include_list="options.h insn-constants.h" |
af5e4ada | 2316 | for f in $tm_file; do |
64ccbc99 | 2317 | case $f in |
3ca43df7 RS |
2318 | ./* ) |
2319 | f=`echo $f | sed 's/^..//'` | |
2320 | tm_file_list="${tm_file_list} $f" | |
2321 | tm_include_list="${tm_include_list} $f" | |
2322 | ;; | |
d02af173 | 2323 | defaults.h ) |
e22340b0 ZW |
2324 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
2325 | tm_include_list="${tm_include_list} $f" | |
2326 | ;; | |
2327 | * ) | |
2328 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
2329 | tm_include_list="${tm_include_list} config/$f" | |
2330 | ;; | |
64ccbc99 | 2331 | esac |
af5e4ada | 2332 | done |
46f18e7b | 2333 | |
11642c3a | 2334 | tm_p_file_list= |
e22340b0 | 2335 | tm_p_include_list= |
11642c3a | 2336 | for f in $tm_p_file; do |
4977bab6 ZW |
2337 | case $f in |
2338 | tm-preds.h ) | |
e22340b0 ZW |
2339 | tm_p_file_list="${tm_p_file_list} $f" |
2340 | tm_p_include_list="${tm_p_include_list} $f" | |
2341 | ;; | |
2342 | * ) | |
2343 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
2344 | tm_p_include_list="${tm_p_include_list} config/$f" | |
2345 | esac | |
2346 | done | |
2347 | ||
b4c522fa IB |
2348 | tm_d_file_list= |
2349 | tm_d_include_list="options.h insn-constants.h" | |
2350 | for f in $tm_d_file; do | |
2351 | case $f in | |
2352 | defaults.h ) | |
2353 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f" | |
2354 | tm_d_include_list="${tm_d_include_list} $f" | |
2355 | ;; | |
2356 | * ) | |
2357 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f" | |
2358 | tm_d_include_list="${tm_d_include_list} config/$f" | |
2359 | ;; | |
2360 | esac | |
2361 | done | |
2362 | ||
e22340b0 ZW |
2363 | xm_file_list= |
2364 | xm_include_list= | |
2365 | for f in $xm_file; do | |
2366 | case $f in | |
2367 | ansidecl.h ) | |
2368 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
2369 | xm_include_list="${xm_include_list} $f" | |
2370 | ;; | |
2371 | auto-host.h ) | |
2372 | xm_file_list="${xm_file_list} $f" | |
2373 | xm_include_list="${xm_include_list} $f" | |
2374 | ;; | |
2375 | * ) | |
2376 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
2377 | xm_include_list="${xm_include_list} config/$f" | |
2378 | ;; | |
4977bab6 | 2379 | esac |
11642c3a ZW |
2380 | done |
2381 | ||
af5e4ada | 2382 | host_xm_file_list= |
e22340b0 | 2383 | host_xm_include_list= |
af5e4ada | 2384 | for f in $host_xm_file; do |
64ccbc99 | 2385 | case $f in |
d02af173 | 2386 | ansidecl.h ) |
e22340b0 ZW |
2387 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
2388 | host_xm_include_list="${host_xm_include_list} $f" | |
2389 | ;; | |
e2500fed | 2390 | auto-host.h ) |
e22340b0 ZW |
2391 | host_xm_file_list="${host_xm_file_list} $f" |
2392 | host_xm_include_list="${host_xm_include_list} $f" | |
2393 | ;; | |
2394 | * ) | |
2395 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
2396 | host_xm_include_list="${host_xm_include_list} config/$f" | |
2397 | ;; | |
64ccbc99 | 2398 | esac |
af5e4ada DE |
2399 | done |
2400 | ||
2401 | build_xm_file_list= | |
2402 | for f in $build_xm_file; do | |
64ccbc99 | 2403 | case $f in |
d02af173 | 2404 | ansidecl.h ) |
e22340b0 ZW |
2405 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
2406 | build_xm_include_list="${build_xm_include_list} $f" | |
2407 | ;; | |
e2500fed | 2408 | auto-build.h | auto-host.h ) |
e22340b0 ZW |
2409 | build_xm_file_list="${build_xm_file_list} $f" |
2410 | build_xm_include_list="${build_xm_include_list} $f" | |
2411 | ;; | |
2412 | * ) | |
2413 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
2414 | build_xm_include_list="${build_xm_include_list} config/$f" | |
2415 | ;; | |
64ccbc99 | 2416 | esac |
af5e4ada | 2417 | done |
46f18e7b | 2418 | |
2989d30c GK |
2419 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
2420 | # cross-compiler which does not use the native headers and libraries. | |
a078a589 ZW |
2421 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
2422 | CROSS= AC_SUBST(CROSS) | |
2423 | ALL=all.internal AC_SUBST(ALL) | |
2424 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
0c90d48b | 2425 | BUILD_SYSTEM_HEADER_DIR=$SYSTEM_HEADER_DIR AC_SUBST(BUILD_SYSTEM_HEADER_DIR) |
b28250ab | 2426 | |
0c90d48b BE |
2427 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x || |
2428 | test x$build != x$host || test "x$with_build_sysroot" != x; then | |
2429 | if test "x$with_build_sysroot" != x; then | |
2430 | BUILD_SYSTEM_HEADER_DIR=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
2431 | else | |
2432 | BUILD_SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2433 | fi | |
b28250ab | 2434 | |
0c90d48b BE |
2435 | if test x$host != x$target |
2436 | then | |
2437 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
2438 | ALL=all.cross | |
2439 | SYSTEM_HEADER_DIR=$BUILD_SYSTEM_HEADER_DIR | |
2440 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
2441 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2442 | fi | |
46f18e7b | 2443 | |
0c90d48b BE |
2444 | if test "x$with_build_sysroot" != "x"; then |
2445 | target_header_dir="${with_build_sysroot}${native_system_header_dir}" | |
7d7d00ba HPN |
2446 | elif test "x$with_sysroot" = x; then |
2447 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include" | |
7d7d00ba HPN |
2448 | elif test "x$with_sysroot" = xyes; then |
2449 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}" | |
2450 | else | |
2451 | target_header_dir="${with_sysroot}${native_system_header_dir}" | |
2452 | fi | |
2453 | else | |
2454 | target_header_dir=${native_system_header_dir} | |
2455 | fi | |
2456 | ||
b39d221a EC |
2457 | # If this is a cross-compiler that does not |
2458 | # have its own set of headers then define | |
2459 | # inhibit_libc | |
2460 | ||
dc06db20 R |
2461 | # If this is using newlib, without having the headers available now, |
2462 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
fecd6201 ZW |
2463 | # This prevents libgcc2 from containing any code which requires libc |
2464 | # support. | |
a929bc28 | 2465 | : ${inhibit_libc=false} |
dc06db20 R |
2466 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
2467 | test x$with_newlib = xyes ; } && | |
7d7d00ba | 2468 | { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then |
160633c6 | 2469 | inhibit_libc=true |
b39d221a EC |
2470 | fi |
2471 | AC_SUBST(inhibit_libc) | |
2472 | ||
a078a589 ZW |
2473 | # When building gcc with a cross-compiler, we need to adjust things so |
2474 | # that the generator programs are still built with the native compiler. | |
52c0e446 | 2475 | # Also, we cannot run fixincludes. |
a078a589 ZW |
2476 | |
2477 | # These are the normal (build=host) settings: | |
eaf9f3b2 | 2478 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
bdd5dc28 | 2479 | CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) |
4977bab6 | 2480 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
bdd5dc28 | 2481 | BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) |
f8c33439 | 2482 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
a078a589 | 2483 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
587dc9c6 | 2484 | |
83599948 NS |
2485 | # And these apply if build != host, or we are generating coverage data |
2486 | if test x$build != x$host || test "x$coverage_flags" != x | |
af5e4ada | 2487 | then |
5116b54e TB |
2488 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CFLAGS_FOR_BUILD)' |
2489 | BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS_FOR_BUILD)' | |
f8c33439 | 2490 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
af5e4ada | 2491 | fi |
46f18e7b | 2492 | |
ae3a15bb DE |
2493 | # Expand extra_headers to include complete path. |
2494 | # This substitutes for lots of t-* files. | |
2495 | extra_headers_list= | |
b1ef58c8 NN |
2496 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
2497 | for file in ${extra_headers} ; do | |
2498 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
2499 | done | |
ae3a15bb | 2500 | |
1617e5ee GK |
2501 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
2502 | if test x"$use_gcc_tgmath" = xyes | |
2503 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
2504 | fi | |
2505 | ||
c38f02df ILT |
2506 | # Define collect2 in Makefile. |
2507 | case $host_can_use_collect2 in | |
2508 | no) collect2= ;; | |
2509 | *) collect2='collect2$(exeext)' ;; | |
2510 | esac | |
2511 | AC_SUBST([collect2]) | |
2512 | ||
af5e4ada | 2513 | # Add a definition of USE_COLLECT2 if system wants one. |
34a86c2b NN |
2514 | case $use_collect2 in |
2515 | no) use_collect2= ;; | |
2516 | "") ;; | |
2517 | *) | |
2518 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
2519 | xm_defines="${xm_defines} USE_COLLECT2" | |
c38f02df ILT |
2520 | case $host_can_use_collect2 in |
2521 | no) | |
2522 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
2523 | ;; | |
2524 | esac | |
34a86c2b NN |
2525 | ;; |
2526 | esac | |
af5e4ada | 2527 | |
1cd0b716 DK |
2528 | AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", |
2529 | [Define to the name of the LTO plugin DSO that must be | |
2530 | passed to the linker's -plugin=LIB option.]) | |
2531 | ||
630327c3 NN |
2532 | # --------------------------- |
2533 | # Assembler & linker features | |
2534 | # --------------------------- | |
2535 | ||
da0f6381 PB |
2536 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
2537 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
2538 | # However when ld-new is first executed from the build tree, libtool will | |
2539 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
2540 | # to the build tree. While doing this we need to use the previous-stage | |
2541 | # linker, or we have an infinite loop. The presence of a shell script as | |
2542 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
2543 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
2544 | # exec-tool will fail. | |
2545 | ||
2546 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
2547 | AC_PROG_LIBTOOL | |
2548 | AC_SUBST(objdir) | |
2549 | AC_SUBST(enable_fast_install) | |
2550 | ||
d869a8c4 NN |
2551 | # Identify the assembler which will work hand-in-glove with the newly |
2552 | # built GCC, so that we can examine its features. This is the assembler | |
2553 | # which will be driven by the driver program. | |
2554 | # | |
2555 | # If build != host, and we aren't building gas in-tree, we identify a | |
2556 | # build->target assembler and hope that it will have the same features | |
2557 | # as the host->target assembler we'll be using. | |
a2f319ea | 2558 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
e8b05380 PB |
2559 | |
2560 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
2561 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
3ccc3a56 AO |
2562 | if test -x "$DEFAULT_ASSEMBLER"; then |
2563 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
6b1786aa | 2564 | elif test -f $gcc_cv_as_gas_srcdir/configure.ac \ |
08d105fa AO |
2565 | && test -f ../gas/Makefile \ |
2566 | && test x$build = x$host; then | |
e8b05380 PB |
2567 | gcc_cv_as=../gas/as-new$build_exeext |
2568 | elif test -x as$build_exeext; then | |
2569 | # Build using assembler in the current directory. | |
2570 | gcc_cv_as=./as$build_exeext | |
4a150fc8 | 2571 | elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2572 | gcc_cv_as="$AS_FOR_TARGET" |
2573 | else | |
2574 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
2575 | fi]) | |
2576 | ||
2577 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
2578 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
be0fe523 PB |
2579 | case "$ORIGINAL_AS_FOR_TARGET" in |
2580 | ./as | ./as$build_exeext) ;; | |
2581 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
2582 | esac | |
e8b05380 | 2583 | |
40f213e6 L |
2584 | default_ld= |
2585 | AC_ARG_ENABLE(ld, | |
2586 | [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], | |
2587 | [case "${enableval}" in | |
2588 | no) | |
2589 | default_ld=ld.gold | |
2590 | ;; | |
2591 | esac]) | |
2592 | ||
95204cd5 | 2593 | install_gold_as_default=no |
40f213e6 L |
2594 | AC_ARG_ENABLE(gold, |
2595 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], | |
2596 | [case "${enableval}" in | |
2597 | default) | |
2598 | install_gold_as_default=yes | |
2599 | ;; | |
2600 | yes) | |
2601 | if test x${default_ld} != x; then | |
2602 | install_gold_as_default=yes | |
2603 | fi | |
2604 | ;; | |
2605 | no) | |
2606 | ;; | |
2607 | *) | |
2608 | AC_MSG_ERROR([invalid --enable-gold argument]) | |
2609 | ;; | |
95204cd5 | 2610 | esac]) |
40f213e6 | 2611 | |
d869a8c4 NN |
2612 | # Identify the linker which will work hand-in-glove with the newly |
2613 | # built GCC, so that we can examine its features. This is the linker | |
2614 | # which will be driven by the driver program. | |
2615 | # | |
2616 | # If build != host, and we aren't building gas in-tree, we identify a | |
2617 | # build->target linker and hope that it will have the same features | |
2618 | # as the host->target linker we'll be using. | |
275b60d6 JJ |
2619 | gcc_cv_gld_major_version= |
2620 | gcc_cv_gld_minor_version= | |
2621 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
40f213e6 | 2622 | gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold |
275b60d6 | 2623 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd |
e8b05380 PB |
2624 | |
2625 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
275b60d6 JJ |
2626 | if test -x "$DEFAULT_LINKER"; then |
2627 | gcc_cv_ld="$DEFAULT_LINKER" | |
40f213e6 L |
2628 | elif test $install_gold_as_default = yes \ |
2629 | && test -f $gcc_cv_ld_gold_srcdir/configure.ac \ | |
2630 | && test -f ../gold/Makefile \ | |
2631 | && test x$build = x$host; then | |
2632 | gcc_cv_ld=../gold/ld-new$build_exeext | |
6b1786aa | 2633 | elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \ |
08d105fa AO |
2634 | && test -f ../ld/Makefile \ |
2635 | && test x$build = x$host; then | |
e8b05380 PB |
2636 | gcc_cv_ld=../ld/ld-new$build_exeext |
2637 | elif test -x collect-ld$build_exeext; then | |
2638 | # Build using linker in the current directory. | |
2639 | gcc_cv_ld=./collect-ld$build_exeext | |
4a150fc8 | 2640 | elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2641 | gcc_cv_ld="$LD_FOR_TARGET" |
2642 | else | |
2643 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
2644 | fi]) | |
2645 | ||
5938f74d | 2646 | ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld |
36d21883 | 2647 | PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"` |
01a88d35 AP |
2648 | # if the PLUGIN_LD is set ld-new, just have it as ld |
2649 | # as that is the installed named. | |
3cecbdfa TS |
2650 | if test x$PLUGIN_LD_SUFFIX = xld-new \ |
2651 | || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then | |
01a88d35 AP |
2652 | PLUGIN_LD_SUFFIX=ld |
2653 | fi | |
5938f74d | 2654 | AC_ARG_WITH(plugin-ld, |
b88ecf55 | 2655 | [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])], |
5938f74d L |
2656 | [if test x"$withval" != x; then |
2657 | ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" | |
bcefc344 | 2658 | PLUGIN_LD_SUFFIX="$withval" |
5938f74d L |
2659 | fi]) |
2660 | AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) | |
36d21883 | 2661 | AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker]) |
5938f74d | 2662 | |
1dcc82c2 DK |
2663 | # Check to see if we are using gold instead of ld |
2664 | AC_MSG_CHECKING(whether we are using gold) | |
2665 | ld_is_gold=no | |
2666 | if test x$gcc_cv_ld != x; then | |
2667 | if $gcc_cv_ld --version 2>/dev/null | sed 1q \ | |
2668 | | grep "GNU gold" > /dev/null; then | |
2669 | ld_is_gold=yes | |
2670 | fi | |
2671 | fi | |
2672 | AC_MSG_RESULT($ld_is_gold) | |
2673 | ||
402565b6 LB |
2674 | AC_MSG_CHECKING(gold linker with split stack support as non default) |
2675 | # Check to see if default ld is not gold, but gold is | |
2676 | # available and has support for split stack. If gcc was configured | |
2677 | # with gold then no checking is done. | |
2678 | # | |
2679 | if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then | |
2680 | ||
2681 | # For platforms other than powerpc64*, enable as appropriate. | |
2682 | ||
2683 | gold_non_default=no | |
2684 | ld_gold=`which ${gcc_cv_ld}.gold` | |
2685 | # Make sure this gold has minimal split stack support | |
2686 | if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
2687 | ld_vers=`$ld_gold --version | sed 1q` | |
2688 | gold_vers=`echo $ld_vers | sed -n \ | |
2689 | -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'` | |
2690 | case $target in | |
2691 | # check that the gold version contains the complete split stack support | |
2692 | # on powerpc64 big and little endian | |
2693 | powerpc64*-*-*) | |
2694 | case "$gold_vers" in | |
2695 | 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes | |
2696 | ;; | |
2697 | *) gold_non_default=no | |
2698 | ;; | |
2699 | esac | |
2700 | ;; | |
2701 | esac | |
2702 | fi | |
2703 | if test $gold_non_default = yes; then | |
2704 | AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1, | |
2705 | [Define if the gold linker supports split stack and is available as a non-default]) | |
2706 | fi | |
2707 | fi | |
2708 | AC_MSG_RESULT($gold_non_default) | |
2709 | ||
e8b05380 PB |
2710 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld |
2711 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
be0fe523 PB |
2712 | case "$ORIGINAL_LD_FOR_TARGET" in |
2713 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
2714 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
2715 | esac | |
e8b05380 PB |
2716 | |
2717 | AC_MSG_CHECKING(what linker to use) | |
55b46574 RO |
2718 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \ |
2719 | || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then | |
08d105fa AO |
2720 | # Single tree build which includes ld. We want to prefer it |
2721 | # over whatever linker top-level may have detected, since | |
2722 | # we'll use what we're building after installation anyway. | |
e8b05380 | 2723 | AC_MSG_RESULT(newly built ld) |
34a86c2b | 2724 | in_tree_ld=yes |
5408ac6c HPN |
2725 | in_tree_ld_is_elf=no |
2726 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
8a45d680 AN |
2727 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
2728 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
5408ac6c | 2729 | in_tree_ld_is_elf=yes |
55b46574 RO |
2730 | elif test "$ld_is_gold" = yes; then |
2731 | in_tree_ld_is_elf=yes | |
5408ac6c | 2732 | fi |
6b1786aa | 2733 | for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.ac $gcc_cv_ld_gld_srcdir/Makefile.in |
275b60d6 JJ |
2734 | do |
2735 | changequote(,)dnl | |
81179208 | 2736 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f` |
275b60d6 JJ |
2737 | if test x$gcc_cv_gld_version != x; then |
2738 | break | |
2739 | fi | |
2740 | done | |
81179208 HPN |
2741 | case $gcc_cv_gld_version in |
2742 | VERSION=[0-9]*) ;; | |
2743 | changequote([,])dnl | |
2744 | *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;; | |
2745 | changequote(,)dnl | |
2746 | esac | |
275b60d6 JJ |
2747 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
2748 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
2749 | changequote([,])dnl | |
40f213e6 L |
2750 | ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext |
2751 | ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext | |
e8b05380 PB |
2752 | else |
2753 | AC_MSG_RESULT($gcc_cv_ld) | |
2754 | in_tree_ld=no | |
40f213e6 L |
2755 | gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext` |
2756 | ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext | |
2757 | ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext | |
275b60d6 JJ |
2758 | fi |
2759 | ||
40f213e6 L |
2760 | AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET) |
2761 | AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET) | |
2762 | ||
981d4858 | 2763 | # Figure out what nm we will be using. |
f9c1196a | 2764 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
e8b05380 | 2765 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
6b1786aa | 2766 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2767 | && test -f ../binutils/Makefile \ |
2768 | && test x$build = x$host; then | |
9f18db39 PB |
2769 | gcc_cv_nm=../binutils/nm-new$build_exeext |
2770 | elif test -x nm$build_exeext; then | |
57991eba | 2771 | gcc_cv_nm=./nm$build_exeext |
4a150fc8 | 2772 | elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2773 | gcc_cv_nm="$NM_FOR_TARGET" |
2774 | else | |
2775 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
2776 | fi]) | |
9f18db39 | 2777 | |
9f18db39 | 2778 | AC_MSG_CHECKING(what nm to use) |
e8b05380 PB |
2779 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
2780 | # Single tree build which includes binutils. | |
2781 | AC_MSG_RESULT(newly built nm) | |
2782 | in_tree_nm=yes | |
2783 | else | |
2784 | AC_MSG_RESULT($gcc_cv_nm) | |
2785 | in_tree_nm=no | |
2786 | fi | |
2787 | ||
2788 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
2789 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
be0fe523 PB |
2790 | case "$ORIGINAL_NM_FOR_TARGET" in |
2791 | ./nm | ./nm$build_exeext) ;; | |
2792 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
2793 | esac | |
2794 | ||
981d4858 | 2795 | |
3cae5780 | 2796 | # Figure out what objdump we will be using. |
e8b05380 | 2797 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
6b1786aa | 2798 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2799 | && test -f ../binutils/Makefile \ |
2800 | && test x$build = x$host; then | |
f9c1196a | 2801 | # Single tree build which includes binutils. |
9f18db39 | 2802 | gcc_cv_objdump=../binutils/objdump$build_exeext |
d739199a DJ |
2803 | elif test -x objdump$build_exeext; then |
2804 | gcc_cv_objdump=./objdump$build_exeext | |
4a150fc8 | 2805 | elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2806 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" |
2807 | else | |
2808 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2809 | fi]) | |
d739199a | 2810 | |
d739199a | 2811 | AC_MSG_CHECKING(what objdump to use) |
e8b05380 PB |
2812 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2813 | # Single tree build which includes binutils. | |
2814 | AC_MSG_RESULT(newly built objdump) | |
2815 | elif test x$gcc_cv_objdump = x; then | |
2816 | AC_MSG_RESULT(not found) | |
2817 | else | |
2818 | AC_MSG_RESULT($gcc_cv_objdump) | |
2819 | fi | |
3cae5780 | 2820 | |
6e97481b JJ |
2821 | # Figure out what readelf we will be using. |
2822 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
6b1786aa | 2823 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
6e97481b JJ |
2824 | && test -f ../binutils/Makefile \ |
2825 | && test x$build = x$host; then | |
2826 | # Single tree build which includes binutils. | |
2827 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2828 | elif test -x readelf$build_exeext; then | |
2829 | gcc_cv_readelf=./readelf$build_exeext | |
32a18c8c L |
2830 | elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then |
2831 | gcc_cv_readelf="$READELF_FOR_TARGET" | |
6e97481b | 2832 | else |
32a18c8c | 2833 | AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET) |
6e97481b JJ |
2834 | fi]) |
2835 | ||
2836 | AC_MSG_CHECKING(what readelf to use) | |
2837 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2838 | # Single tree build which includes binutils. | |
2839 | AC_MSG_RESULT(newly built readelf) | |
2840 | elif test x$gcc_cv_readelf = x; then | |
2841 | AC_MSG_RESULT(not found) | |
2842 | else | |
2843 | AC_MSG_RESULT($gcc_cv_readelf) | |
2844 | fi | |
2845 | ||
e4a9a572 IS |
2846 | # Figure out what otool we will be using. |
2847 | AS_VAR_SET_IF(gcc_cv_otool,, [ | |
2848 | if test -x otool$build_exeext; then | |
2849 | gcc_cv_otool=./otool$build_exeext | |
2850 | elif ( set dummy $OTOOL_FOR_TARGET; test -x $[2] ); then | |
2851 | gcc_cv_otool="$OTOOL_FOR_TARGET" | |
2852 | else | |
2853 | AC_PATH_PROG(gcc_cv_otool, $OTOOL_FOR_TARGET) | |
2854 | fi]) | |
2855 | ||
2856 | AC_MSG_CHECKING(what otool to use) | |
2857 | if test x$gcc_cv_otool = x; then | |
2858 | AC_MSG_RESULT(not found) | |
2859 | else | |
2860 | AC_MSG_RESULT($gcc_cv_otool) | |
2861 | fi | |
2862 | ||
3b5e8ee4 IS |
2863 | # Figure out the dsymutil we will use. |
2864 | AS_VAR_SET_IF(gcc_cv_dsymutil,, [ | |
2865 | if test -x "$DEFAULT_DSYMUTIL"; then | |
2866 | gcc_cv_dsymutil="$DEFAULT_DSYMUTIL" | |
2867 | elif test -x dsymutil$build_exeext; then | |
2868 | gcc_cv_dsymutil=./dsymutil$build_exeext | |
2869 | elif ( set dummy $DSYMUTIL_FOR_TARGET; test -x $[2] ); then | |
2870 | gcc_cv_dsymutil=$DSYMUTIL_FOR_TARGET | |
2871 | elif ( set dummy $DSYMUTIL; test -x $[2] ); then | |
2872 | gcc_cv_dsymutil=$DSYMUTIL | |
2873 | else | |
2874 | AC_PATH_PROG(gcc_cv_dsymutil, $DSYMUTIL_FOR_TARGET) | |
2875 | fi]) | |
2876 | ||
2877 | ORIGINAL_DSYMUTIL_FOR_TARGET=$gcc_cv_dsymutil | |
2878 | AC_SUBST(ORIGINAL_DSYMUTIL_FOR_TARGET) | |
2879 | case "$ORIGINAL_DSYMUTIL_FOR_TARGET" in | |
2880 | ./dsymutil | ./dsymutil$build_exeext) ;; | |
2881 | *) AC_CONFIG_FILES(dsymutil:exec-tool.in, [chmod +x dsymutil]) ;; | |
2882 | esac | |
2883 | ||
981d4858 | 2884 | # Figure out what assembler alignment features are present. |
1918f4b7 | 2885 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,, |
8ada417f ZW |
2886 | [.balign 4 |
2887 | .p2align 2],, | |
2888 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2889 | [Define if your assembler supports .balign and .p2align.])]) | |
2890 | ||
1918f4b7 | 2891 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,, |
8ada417f ZW |
2892 | [.p2align 4,,7],, |
2893 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2894 | [Define if your assembler supports specifying the maximum number | |
2895 | of bytes to skip when using the GAS .p2align command.])]) | |
2896 | ||
1918f4b7 | 2897 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,, |
5708d18d MS |
2898 | [.literal16],, |
2899 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2900 | [Define if your assembler supports .literal16.])]) | |
2901 | ||
1918f4b7 | 2902 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,, |
8ada417f | 2903 | [conftest_label1: .word 0 |
d1accaa3 JJ |
2904 | .subsection -1 |
2905 | conftest_label2: .word 0 | |
8ada417f ZW |
2906 | .previous], |
2907 | [if test x$gcc_cv_nm != x; then | |
2908 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2909 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2910 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2911 | then : | |
2912 | else gcc_cv_as_subsection_m1=yes | |
2913 | fi | |
2914 | rm -f conftest.nm1 conftest.nm2 | |
2915 | fi], | |
2916 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2917 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2918 | emitting at the beginning of your section.])]) | |
2919 | ||
1918f4b7 | 2920 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,, |
8ada417f ZW |
2921 | [ .weak foobar],, |
2922 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2923 | ||
1918f4b7 | 2924 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,, |
a0203ca7 AO |
2925 | [ .weakref foobar, barfnot],, |
2926 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2927 | ||
1918f4b7 | 2928 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,, |
e41f3691 JDA |
2929 | [ .SPACE $TEXT$ |
2930 | .NSUBSPA $CODE$,COMDAT],, | |
2931 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2932 | ||
8ada417f ZW |
2933 | # .hidden needs to be supported in both the assembler and the linker, |
2934 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2935 | # This is irritatingly difficult to feature test for; we have to check the | |
2936 | # date string after the version number. If we've got an in-tree | |
2937 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2938 | # to be safe. | |
2939 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
8d91472f DE |
2940 | case "${target}" in |
2941 | *-*-aix*) | |
2942 | conftest_s=' .globl foobar,hidden' | |
2943 | ;; | |
2944 | *) | |
2945 | conftest_s=' .hidden foobar | |
2946 | foobar:' | |
2947 | ;; | |
2948 | esac | |
1918f4b7 | 2949 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,, [$conftest_s]) |
ee610fcd RO |
2950 | case "${target}" in |
2951 | *-*-darwin*) | |
2952 | # Darwin as has some visibility support, though with a different syntax. | |
2953 | gcc_cv_as_hidden=yes | |
2954 | ;; | |
2955 | esac | |
8ada417f | 2956 | |
ba885ec5 NS |
2957 | # gnu_indirect_function type is an extension proposed at |
2958 | # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime | |
2959 | # selection of function implementation | |
f6c5fbfd NS |
2960 | AC_ARG_ENABLE(gnu-indirect-function, |
2961 | [AS_HELP_STRING([--enable-gnu-indirect-function], | |
2962 | [enable the use of the @gnu_indirect_function to glibc systems])], | |
2963 | [case $enable_gnu_indirect_function in | |
2964 | yes | no) ;; | |
2965 | *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function. | |
2966 | Valid choices are 'yes' and 'no'.]) ;; | |
2967 | esac], | |
2968 | [enable_gnu_indirect_function="$default_gnu_indirect_function"]) | |
2f251a05 | 2969 | |
97976c07 NC |
2970 | case "${target}" in |
2971 | riscv*-*-linux*) | |
2972 | AC_MSG_CHECKING(linker ifunc IRELATIVE support) | |
2973 | cat > conftest.s <<EOF | |
2974 | .text | |
2975 | .type foo_resolver, @function | |
2976 | foo_resolver: | |
2977 | ret | |
2978 | .size foo_resolver, .-foo_resolver | |
2979 | ||
2980 | .globl foo | |
2981 | .type foo, %gnu_indirect_function | |
2982 | .set foo, foo_resolver | |
2983 | ||
2984 | .globl bar | |
2985 | .type bar, @function | |
2986 | bar: | |
2987 | call foo | |
2988 | ret | |
2989 | .size bar, .-bar | |
2990 | EOF | |
2991 | if test x$gcc_cv_as != x \ | |
2992 | && test x$gcc_cv_ld != x \ | |
2993 | && test x$gcc_cv_readelf != x \ | |
2994 | && $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \ | |
2995 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \ | |
2996 | && $gcc_cv_readelf --relocs --wide conftest \ | |
2997 | | grep R_RISCV_IRELATIVE > /dev/null 2>&1; then | |
2998 | enable_gnu_indirect_function=yes | |
2999 | fi | |
3000 | rm -f conftest conftest.o conftest.s | |
3001 | AC_MSG_RESULT($enable_gnu_indirect_function) | |
3002 | ;; | |
3003 | esac | |
3004 | ||
2f251a05 AI |
3005 | gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi` |
3006 | AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif, | |
3007 | [Define if your system supports gnu indirect functions.]) | |
3008 | ||
ba885ec5 | 3009 | |
10ca6198 JJ |
3010 | changequote(,)dnl |
3011 | if test $in_tree_ld != yes ; then | |
3012 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
55b46574 RO |
3013 | if echo "$ld_ver" | grep GNU > /dev/null; then |
3014 | if test x"$ld_is_gold" = xyes; then | |
3015 | # GNU gold --version looks like this: | |
3016 | # | |
3017 | # GNU gold (GNU Binutils 2.21.51.20110225) 1.11 | |
3018 | # | |
3019 | # We extract the binutils version which is more familiar and specific | |
3020 | # than the gold version. | |
3021 | ld_vers=`echo $ld_ver | sed -n \ | |
3022 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
3023 | else | |
3024 | # GNU ld --version looks like this: | |
3025 | # | |
3026 | # GNU ld (GNU Binutils) 2.21.51.20110225 | |
3027 | ld_vers=`echo $ld_ver | sed -n \ | |
3028 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
3029 | fi | |
08bf7bde | 3030 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)\(-*\)\([01][0-9]\)\2\([0-3][0-9]\).*$,\1\3\4,p'` |
10ca6198 JJ |
3031 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
3032 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
3033 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
55c4f715 RO |
3034 | else |
3035 | case "${target}" in | |
3036 | *-*-solaris2*) | |
dea82cdb | 3037 | # Solaris 2 ld -V output looks like this for a regular version: |
55c4f715 | 3038 | # |
dea82cdb RO |
3039 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 |
3040 | # | |
3041 | # but test versions add stuff at the end: | |
3042 | # | |
3043 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 | |
3044 | # | |
dea82cdb RO |
3045 | # ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version |
3046 | # numbers can be used in ld.so.1 feature checks even if a different | |
3047 | # linker is configured. | |
55c4f715 | 3048 | ld_ver=`$gcc_cv_ld -V 2>&1` |
7cd4af82 | 3049 | if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then |
55c4f715 | 3050 | ld_vers=`echo $ld_ver | sed -n \ |
7cd4af82 | 3051 | -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'` |
55c4f715 RO |
3052 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
3053 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
3054 | fi | |
3055 | ;; | |
3056 | esac | |
10ca6198 JJ |
3057 | fi |
3058 | fi | |
3059 | changequote([,])dnl | |
3060 | ||
8ada417f | 3061 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, |
e5dfb95f | 3062 | [[if test $in_tree_ld = yes ; then |
8ada417f ZW |
3063 | gcc_cv_ld_hidden=no |
3064 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3065 | && test $in_tree_ld_is_elf = yes; then | |
3066 | gcc_cv_ld_hidden=yes | |
3067 | fi | |
3068 | else | |
3069 | gcc_cv_ld_hidden=yes | |
55b46574 RO |
3070 | if test x"$ld_is_gold" = xyes; then |
3071 | : | |
3072 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
8ada417f ZW |
3073 | if test 0"$ld_date" -lt 20020404; then |
3074 | if test -n "$ld_date"; then | |
3075 | # If there was date string, but was earlier than 2002-04-04, fail | |
3076 | gcc_cv_ld_hidden=no | |
3077 | elif test -z "$ld_vers"; then | |
3078 | # If there was no date string nor ld version number, something is wrong | |
3079 | gcc_cv_ld_hidden=no | |
3080 | else | |
8ada417f ZW |
3081 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
3082 | if test "$ld_vers_major" -lt 2; then | |
3083 | gcc_cv_ld_hidden=no | |
3084 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
3085 | gcc_cv_ld_hidden="no" | |
3086 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
3087 | gcc_cv_ld_hidden=no | |
c72931a6 | 3088 | fi |
8ada417f | 3089 | fi |
789b7de5 | 3090 | fi |
8ada417f | 3091 | else |
28690784 | 3092 | case "${target}" in |
8d91472f DE |
3093 | *-*-aix[789]*) |
3094 | gcc_cv_ld_hidden=yes | |
3095 | ;; | |
ee610fcd RO |
3096 | *-*-darwin*) |
3097 | # Darwin ld has some visibility support. | |
3098 | gcc_cv_ld_hidden=yes | |
3099 | ;; | |
b0fd7d27 | 3100 | hppa64*-*-hpux* | ia64*-*-hpux*) |
28690784 JDA |
3101 | gcc_cv_ld_hidden=yes |
3102 | ;; | |
ccd1242e | 3103 | *-*-solaris2*) |
a93e1899 RO |
3104 | # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but |
3105 | # .symbolic was only added in Solaris 9 12/02. | |
5e87dc23 RO |
3106 | gcc_cv_ld_hidden=yes |
3107 | ;; | |
28690784 JDA |
3108 | *) |
3109 | gcc_cv_ld_hidden=no | |
3110 | ;; | |
3111 | esac | |
8ada417f | 3112 | fi |
e5dfb95f | 3113 | fi]]) |
8ada417f | 3114 | libgcc_visibility=no |
9e944a16 | 3115 | AC_SUBST(libgcc_visibility) |
232b67d9 | 3116 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0f31374d | 3117 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
8ada417f ZW |
3118 | libgcc_visibility=yes |
3119 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
3120 | [Define if your assembler and linker support .hidden.]) | |
3121 | fi | |
6a9c5260 | 3122 | |
e73da78e RO |
3123 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
3124 | gcc_cv_ld_ro_rw_mix=unknown | |
3125 | if test $in_tree_ld = yes ; then | |
3126 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3127 | && test $in_tree_ld_is_elf = yes; then | |
3128 | gcc_cv_ld_ro_rw_mix=read-write | |
3129 | fi | |
3130 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3131 | echo '.section myfoosect, "a"' > conftest1.s | |
3132 | echo '.section myfoosect, "aw"' > conftest2.s | |
3133 | echo '.byte 1' >> conftest2.s | |
3134 | echo '.section myfoosect, "a"' > conftest3.s | |
3135 | echo '.byte 0' >> conftest3.s | |
3136 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3137 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3138 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
3139 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
3140 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
3141 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
3142 | | sed -e '/myfoosect/!d' -e N` | |
3143 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
3144 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
3145 | gcc_cv_ld_ro_rw_mix=read-only | |
3146 | else | |
3147 | gcc_cv_ld_ro_rw_mix=read-write | |
3148 | fi | |
3149 | fi | |
3150 | fi | |
3151 | changequote(,)dnl | |
3152 | rm -f conftest.* conftest[123].* | |
3153 | changequote([,])dnl | |
3154 | fi | |
3155 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
3156 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
3157 | [Define if your linker links a mix of read-only | |
3158 | and read-write sections into a read-write section.]) | |
3159 | fi | |
3160 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
3161 | ||
e9c9f128 JJ |
3162 | gcc_AC_INITFINI_ARRAY |
3163 | ||
8ada417f | 3164 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2133e773 IS |
3165 | # Older versions of GAS and some non-GNU assemblers, have a bugs handling |
3166 | # these directives, even when they appear to accept them. | |
1918f4b7 | 3167 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,, |
8ada417f | 3168 | [ .data |
b7460f24 RH |
3169 | .uleb128 L2 - L1 |
3170 | L1: | |
3171 | .uleb128 1280 | |
3172 | .sleb128 -1010 | |
2133e773 IS |
3173 | L2: |
3174 | .uleb128 0x8000000000000000 | |
3175 | ], | |
3176 | [[ | |
3177 | if test "x$gcc_cv_objdump" != x; then | |
3178 | if $gcc_cv_objdump -s conftest.o 2>/dev/null \ | |
3179 | | grep '04800a8e 78808080 80808080 808001' >/dev/null; then | |
3180 | gcc_cv_as_leb128=yes | |
3181 | fi | |
3182 | elif test "x$gcc_cv_otool" != x; then | |
3183 | if $gcc_cv_otool -d conftest.o 2>/dev/null \ | |
3184 | | grep '04 80 0a 8e 78 80 80 80 80 80 80 80 80 80 01' >/dev/null; then | |
3185 | gcc_cv_as_leb128=yes | |
3186 | fi | |
3187 | else | |
3188 | # play safe, assume the assembler is broken. | |
3189 | : | |
3190 | fi | |
3191 | ]], | |
3192 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
3193 | [Define if your assembler supports .sleb128 and .uleb128.])], | |
3194 | [AC_DEFINE(HAVE_AS_LEB128, 0, | |
3195 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
8ada417f | 3196 | |
a836f142 RO |
3197 | # Determine if an .eh_frame section is read-only. |
3198 | gcc_fn_eh_frame_ro () { | |
3199 | $gcc_cv_as $1 -o conftest.o conftest.s > /dev/null 2>&1 && \ | |
3200 | $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
3201 | sed -e '/.eh_frame/!d' -e N | grep READONLY > /dev/null | |
3202 | } | |
3203 | ||
d4ea4622 | 3204 | # Check if we have assembler support for unwind directives. |
1918f4b7 | 3205 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,, |
d4ea4622 RH |
3206 | [ .text |
3207 | .cfi_startproc | |
3208 | .cfi_offset 0, 0 | |
3209 | .cfi_same_value 1 | |
3210 | .cfi_def_cfa 1, 2 | |
3211 | .cfi_escape 1, 2, 3, 4, 5 | |
e73da78e RO |
3212 | .cfi_endproc], |
3213 | [case "$target" in | |
3214 | *-*-solaris*) | |
3215 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
3216 | # read-only and read-write sections, we need to make sure that the | |
3217 | # assembler used emits read-write .eh_frame sections. | |
a836f142 RO |
3218 | if test "x$gcc_cv_ld_ro_rw_mix" = xread-write; then |
3219 | gcc_cv_as_cfi_directive=yes | |
3220 | elif test "x$gcc_cv_objdump" = x; then | |
3221 | # No objdump, err on the side of caution. | |
3222 | gcc_cv_as_cfi_directive=no | |
3223 | else | |
3224 | if test x$gas = xyes; then | |
3225 | as_32_opt="--32" | |
3226 | as_64_opt="--64" | |
e73da78e | 3227 | else |
a836f142 RO |
3228 | as_32_opt="-m32" |
3229 | as_64_opt="-m64" | |
e73da78e | 3230 | fi |
a836f142 RO |
3231 | case "$target" in |
3232 | sparc*-*-solaris2.*) | |
3233 | # On Solaris/SPARC, .eh_frame sections should always be read-write. | |
3234 | if gcc_fn_eh_frame_ro $as_32_opt \ | |
3235 | || gcc_fn_eh_frame_ro $as_64_opt; then | |
3236 | gcc_cv_as_cfi_directive=no | |
3237 | else | |
3238 | gcc_cv_as_cfi_directive=yes | |
3239 | fi | |
3240 | ;; | |
3241 | i?86-*-solaris2.* | x86_64-*-solaris2.*) | |
3242 | # On Solaris/x86, make sure that GCC and assembler agree on using | |
3243 | # read-only .eh_frame sections for 64-bit. | |
3244 | if gcc_fn_eh_frame_ro $as_32_opt; then | |
3245 | gcc_cv_as_cfi_directive=no | |
3246 | elif gcc_fn_eh_frame_ro $as_64_opt; then | |
3247 | gcc_cv_as_cfi_directive=yes | |
3248 | else | |
3249 | gcc_cv_as_cfi_directive=no | |
3250 | fi | |
3251 | ;; | |
3252 | esac | |
e73da78e RO |
3253 | fi |
3254 | ;; | |
3255 | *-*-*) | |
3256 | gcc_cv_as_cfi_directive=yes | |
3257 | ;; | |
3258 | esac]) | |
92053f38 | 3259 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then |
1918f4b7 | 3260 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,, |
6e97481b JJ |
3261 | [ .text |
3262 | .cfi_startproc | |
3263 | .cfi_adjust_cfa_offset 64 | |
7ac22e17 | 3264 | .skip 75040, 0 |
6e97481b JJ |
3265 | .cfi_adjust_cfa_offset 128 |
3266 | .cfi_endproc], | |
e5dfb95f | 3267 | [[ |
92053f38 | 3268 | if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \ |
7ac22e17 | 3269 | | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then |
6e97481b JJ |
3270 | gcc_cv_as_cfi_advance_working=yes |
3271 | fi | |
e5dfb95f | 3272 | ]]) |
6e97481b | 3273 | else |
92053f38 | 3274 | # no objdump, err on the side of caution |
66f91112 | 3275 | gcc_cv_as_cfi_advance_working=no |
6e97481b | 3276 | fi |
174425ad | 3277 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE) |
d4ea4622 | 3278 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
6e97481b JJ |
3279 | [`if test $gcc_cv_as_cfi_directive = yes \ |
3280 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
058514b3 RH |
3281 | [Define 0/1 if your assembler supports CFI directives.]) |
3282 | ||
174425ad | 3283 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE) |
058514b3 | 3284 | gcc_GAS_CHECK_FEATURE([cfi personality directive], |
e0b6d0b3 | 3285 | gcc_cv_as_cfi_personality_directive,, |
058514b3 | 3286 | [ .text |
042628f9 | 3287 | .cfi_startproc |
058514b3 RH |
3288 | .cfi_personality 0, symbol |
3289 | .cfi_endproc]) | |
3290 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
22e05272 | 3291 | [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], |
058514b3 | 3292 | [Define 0/1 if your assembler supports .cfi_personality.]) |
d4ea4622 | 3293 | |
7d45fb94 | 3294 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
e0b6d0b3 | 3295 | gcc_cv_as_cfi_sections_directive,, |
7d45fb94 JJ |
3296 | [ .text |
3297 | .cfi_sections .debug_frame, .eh_frame | |
3298 | .cfi_startproc | |
92053f38 RH |
3299 | .cfi_endproc], |
3300 | [case $target_os in | |
abe64d9e | 3301 | win32 | pe | cygwin* | mingw32*) |
92053f38 RH |
3302 | # Need to check that we generated the correct relocation for the |
3303 | # .debug_frame section. This was fixed for binutils 2.21. | |
3304 | gcc_cv_as_cfi_sections_directive=no | |
3305 | if test "x$gcc_cv_objdump" != x; then | |
3306 | if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \ | |
3307 | grep secrel > /dev/null; then | |
3308 | gcc_cv_as_cfi_sections_directive=yes | |
3309 | fi | |
3310 | fi | |
3311 | ;; | |
3312 | *) | |
3313 | gcc_cv_as_cfi_sections_directive=yes | |
3314 | ;; | |
3315 | esac]) | |
174425ad | 3316 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) |
7d45fb94 | 3317 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, |
22e05272 | 3318 | [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], |
7d45fb94 JJ |
3319 | [Define 0/1 if your assembler supports .cfi_sections.]) |
3320 | ||
8ada417f ZW |
3321 | # GAS versions up to and including 2.11.0 may mis-optimize |
3322 | # .eh_frame data. | |
1918f4b7 | 3323 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,, |
8ada417f | 3324 | [ .text |
c64688ae RH |
3325 | .LFB1: |
3326 | .4byte 0 | |
3327 | .L1: | |
3328 | .4byte 0 | |
3329 | .LFE1: | |
3330 | .section .eh_frame,"aw",@progbits | |
3331 | __FRAME_BEGIN__: | |
3332 | .4byte .LECIE1-.LSCIE1 | |
3333 | .LSCIE1: | |
3334 | .4byte 0x0 | |
3335 | .byte 0x1 | |
3336 | .ascii "z\0" | |
3337 | .byte 0x1 | |
3338 | .byte 0x78 | |
3339 | .byte 0x1a | |
3340 | .byte 0x0 | |
3341 | .byte 0x4 | |
3342 | .4byte 1 | |
3343 | .p2align 1 | |
3344 | .LECIE1: | |
3345 | .LSFDE1: | |
3346 | .4byte .LEFDE1-.LASFDE1 | |
3347 | .LASFDE1: | |
3348 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
3349 | .4byte .LFB1 | |
3350 | .4byte .LFE1-.LFB1 | |
3351 | .byte 0x4 | |
3352 | .4byte .LFE1-.LFB1 | |
3353 | .byte 0x4 | |
3354 | .4byte .L1-.LFB1 | |
8ada417f | 3355 | .LEFDE1:], |
ba479fd2 NN |
3356 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
3357 | cat > conftest.lit <<EOF | |
c64688ae RH |
3358 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
3359 | 0010 01000000 12000000 18000000 00000000 ................ | |
ba479fd2 | 3360 | 0020 08000000 04080000 0044 .........D @&t@ |
01efb963 | 3361 | EOF |
ba479fd2 | 3362 | cat > conftest.big <<EOF |
01efb963 AS |
3363 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
3364 | 0010 00000001 00000012 00000018 00000000 ................ | |
ba479fd2 | 3365 | 0020 00000008 04000000 0844 .........D @&t@ |
c64688ae | 3366 | EOF |
8ada417f ZW |
3367 | # If the assembler didn't choke, and we can objdump, |
3368 | # and we got the correct data, then succeed. | |
dbc02e7f AS |
3369 | # The text in the here-document typically retains its unix-style line |
3370 | # endings, while the output of objdump will use host line endings. | |
3371 | # Therefore, use diff -b for the comparisons. | |
8ada417f ZW |
3372 | if test x$gcc_cv_objdump != x \ |
3373 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
3374 | | tail -3 > conftest.got \ | |
dbc02e7f AS |
3375 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
3376 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
8ada417f ZW |
3377 | then |
3378 | gcc_cv_as_eh_frame=yes | |
3379 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
3380 | gcc_cv_as_eh_frame=buggy | |
3381 | else | |
3382 | # Uh oh, what do we do now? | |
3383 | gcc_cv_as_eh_frame=no | |
3384 | fi]) | |
3385 | ||
3386 | if test $gcc_cv_as_eh_frame = buggy; then | |
3387 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
3388 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
201556f0 | 3389 | fi |
201556f0 | 3390 | |
f8d70404 RO |
3391 | # Test if the assembler supports the section flag 'e' or #exclude for |
3392 | # specifying an excluded section. | |
3393 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e, | |
e0b6d0b3 | 3394 | [--fatal-warnings], |
f8d70404 RO |
3395 | [.section foo1,"e" |
3396 | .byte 0,0,0,0]) | |
3397 | if test $gcc_cv_as_section_exclude_e = no; then | |
3398 | case "${target}" in | |
3399 | # Solaris as uses #exclude instead. | |
3400 | *-*-solaris2*) | |
3401 | case "${target}" in | |
3402 | sparc*-*-solaris2*) | |
3403 | conftest_s='.section "foo1", #exclude' | |
3404 | ;; | |
3405 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3406 | conftest_s='.section foo1, #exclude' | |
3407 | ;; | |
3408 | esac | |
3409 | ;; | |
3410 | esac | |
e0b6d0b3 | 3411 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,, |
f8d70404 RO |
3412 | [$conftest_s |
3413 | .byte 0,0,0,0]) | |
3414 | fi | |
3415 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE, | |
3416 | [`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`], | |
3417 | [Define if your assembler supports specifying the exclude section flag.]) | |
3418 | ||
6fbec038 L |
3419 | # Test if the assembler supports the section flag 'R' for specifying |
3420 | # section with SHF_GNU_RETAIN. | |
3421 | case "${target}" in | |
3422 | # Solaris may use GNU assembler with Solairs ld. Even if GNU | |
3423 | # assembler supports the section flag 'R', it doesn't mean that | |
3424 | # Solairs ld supports it. | |
3425 | *-*-solaris2*) | |
3426 | gcc_cv_as_shf_gnu_retain=no | |
3427 | ;; | |
3428 | *) | |
3429 | gcc_GAS_CHECK_FEATURE([section 'R' flag], gcc_cv_as_shf_gnu_retain, | |
e0b6d0b3 | 3430 | [--fatal-warnings], |
6fbec038 L |
3431 | [.section .foo,"awR",%progbits |
3432 | .byte 0]) | |
3433 | ;; | |
3434 | esac | |
3435 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_GNU_RETAIN, | |
3436 | [`if test $gcc_cv_as_shf_gnu_retain = yes; then echo 1; else echo 0; fi`], | |
3437 | [Define 0/1 if your assembler supports marking sections with SHF_GNU_RETAIN flag.]) | |
3438 | ||
694d4a6d L |
3439 | # Test if the assembler supports the section flag 'o' for specifying |
3440 | # section with link-order. | |
3441 | case "${target}" in | |
3442 | # Solaris may use GNU assembler with Solairs ld. Even if GNU | |
3443 | # assembler supports the section flag 'o', it doesn't mean that | |
3444 | # Solairs ld supports it. | |
3445 | *-*-solaris2*) | |
3446 | gcc_cv_as_section_link_order=no | |
3447 | ;; | |
3448 | *) | |
3449 | gcc_GAS_CHECK_FEATURE([section 'o' flag], gcc_cv_as_section_link_order, | |
e0b6d0b3 | 3450 | [--fatal-warnings], |
694d4a6d L |
3451 | [.section .foo,"a" |
3452 | .byte 0 | |
3453 | .section __patchable_function_entries,"awo",%progbits,.foo | |
3454 | .byte 0]) | |
3455 | ;; | |
3456 | esac | |
3457 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_LINK_ORDER, | |
3458 | [`if test $gcc_cv_as_section_link_order = yes; then echo 1; else echo 0; fi`], | |
3459 | [Define 0/1 if your assembler supports 'o' flag in .section directive.]) | |
3460 | ||
8ada417f | 3461 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
e0b6d0b3 | 3462 | [--fatal-warnings], |
5d4856a0 | 3463 | [.section .rodata.str, "aMS", @progbits, 1]) |
c18a5b6c MM |
3464 | if test $gcc_cv_as_shf_merge = no; then |
3465 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
e0b6d0b3 | 3466 | [--fatal-warnings], |
c18a5b6c MM |
3467 | [.section .rodata.str, "aMS", %progbits, 1]) |
3468 | fi | |
5d4856a0 RO |
3469 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
3470 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3471 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
8ada417f | 3472 | |
dc6b6330 RO |
3473 | gcc_cv_ld_aligned_shf_merge=yes |
3474 | case "$target" in | |
dc6b6330 RO |
3475 | # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for |
3476 | # alignment > 1. | |
3477 | sparc*-*-solaris2.11*) | |
3478 | if test x"$gnu_ld" = xno \ | |
3479 | && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then | |
3480 | gcc_cv_ld_aligned_shf_merge=no | |
3481 | fi | |
3482 | ;; | |
3483 | esac | |
3484 | AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE, | |
3485 | [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3486 | [Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.]) | |
3487 | ||
e0b6d0b3 | 3488 | gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive,, |
01704e5a RO |
3489 | [.stabs "gcc2_compiled.",60,0,0,0],, |
3490 | [AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1, | |
3491 | [Define if your assembler supports .stabs.])]) | |
3492 | ||
2ca48caa RO |
3493 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)], |
3494 | gcc_cv_as_comdat_group, | |
e0b6d0b3 | 3495 | [--fatal-warnings], |
c18a5b6c MM |
3496 | [.section .text,"axG",@progbits,.foo,comdat]) |
3497 | if test $gcc_cv_as_comdat_group = yes; then | |
3498 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3499 | gcc_cv_as_comdat_group_group=no |
c18a5b6c | 3500 | else |
2ca48caa RO |
3501 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)], |
3502 | gcc_cv_as_comdat_group_percent, | |
e0b6d0b3 | 3503 | [--fatal-warnings], |
c18a5b6c | 3504 | [.section .text,"axG",%progbits,.foo,comdat]) |
2ca48caa RO |
3505 | if test $gcc_cv_as_comdat_group_percent = yes; then |
3506 | gcc_cv_as_comdat_group_group=no | |
3507 | else | |
3508 | case "${target}" in | |
3509 | # Sun as uses a completely different syntax. | |
3510 | *-*-solaris2*) | |
3511 | case "${target}" in | |
3512 | sparc*-*-solaris2*) | |
3513 | conftest_s=' | |
3514 | .group foo,".text%foo",#comdat | |
3515 | .section ".text%foo", #alloc,#execinstr,#progbits | |
3516 | .globl foo | |
3517 | foo: | |
3518 | ' | |
3519 | ;; | |
ccd1242e | 3520 | i?86-*-solaris2* | x86_64-*-solaris2*) |
2ca48caa RO |
3521 | conftest_s=' |
3522 | .group foo,.text%foo,#comdat | |
3523 | .section .text%foo, "ax", @progbits | |
3524 | .globl foo | |
3525 | foo: | |
3526 | ' | |
3527 | ;; | |
3528 | esac | |
3529 | gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)], | |
3530 | gcc_cv_as_comdat_group_group, | |
e0b6d0b3 | 3531 | , [$conftest_s]) |
2ca48caa RO |
3532 | ;; |
3533 | esac | |
56e675ce RO |
3534 | if test -z "${gcc_cv_as_comdat_group_group+set}"; then |
3535 | gcc_cv_as_comdat_group_group=no | |
3536 | fi | |
2ca48caa | 3537 | fi |
c18a5b6c | 3538 | fi |
1dcc82c2 DK |
3539 | if test x"$ld_is_gold" = xyes; then |
3540 | comdat_group=yes | |
3541 | elif test $in_tree_ld = yes ; then | |
39ba7b7d JB |
3542 | comdat_group=no |
3543 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3544 | && test $in_tree_ld_is_elf = yes; then | |
3545 | comdat_group=yes | |
3546 | fi | |
55c4f715 | 3547 | elif echo "$ld_ver" | grep GNU > /dev/null; then |
11176d2a JB |
3548 | comdat_group=yes |
3549 | if test 0"$ld_date" -lt 20050308; then | |
3550 | if test -n "$ld_date"; then | |
3551 | # If there was date string, but was earlier than 2005-03-08, fail | |
3552 | comdat_group=no | |
3553 | elif test "$ld_vers_major" -lt 2; then | |
3554 | comdat_group=no | |
3555 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
3556 | comdat_group=no | |
3557 | fi | |
3558 | fi | |
1cf0118d | 3559 | else |
55c4f715 RO |
3560 | changequote(,)dnl |
3561 | case "${target}" in | |
3562 | *-*-solaris2.1[1-9]*) | |
2ca48caa | 3563 | comdat_group=no |
55c4f715 RO |
3564 | # Sun ld has COMDAT group support since Solaris 9, but it doesn't |
3565 | # interoperate with GNU as until Solaris 11 build 130, i.e. ld | |
3566 | # version 1.688. | |
3567 | # | |
2ca48caa RO |
3568 | # If using Sun as for COMDAT group as emitted by GCC, one needs at |
3569 | # least ld version 1.2267. | |
3570 | if test "$ld_vers_major" -gt 1; then | |
55c4f715 | 3571 | comdat_group=yes |
2ca48caa RO |
3572 | elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then |
3573 | comdat_group=yes | |
3574 | elif test "$ld_vers_minor" -ge 2267; then | |
3575 | comdat_group=yes | |
55c4f715 RO |
3576 | fi |
3577 | ;; | |
3578 | *) | |
3579 | # Assume linkers other than GNU ld don't support COMDAT group. | |
3580 | comdat_group=no | |
3581 | ;; | |
3582 | esac | |
3583 | changequote([,])dnl | |
1cf0118d | 3584 | fi |
55c4f715 RO |
3585 | # Allow overriding the automatic COMDAT group tests above. |
3586 | AC_ARG_ENABLE(comdat, | |
3587 | [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])], | |
3588 | [comdat_group="$enable_comdat"]) | |
1cf0118d RO |
3589 | if test $comdat_group = no; then |
3590 | gcc_cv_as_comdat_group=no | |
3591 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3592 | gcc_cv_as_comdat_group_group=no |
11176d2a JB |
3593 | fi |
3594 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
2ca48caa RO |
3595 | [`if test $gcc_cv_as_comdat_group = yes \ |
3596 | || test $gcc_cv_as_comdat_group_percent = yes \ | |
3597 | || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`], | |
11176d2a | 3598 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
c18a5b6c | 3599 | |
af2e3244 RO |
3600 | # Restrict this test to Solaris/x86: other targets define this statically. |
3601 | case "${target}" in | |
3602 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3603 | AC_MSG_CHECKING(support for hidden thunks in linkonce sections) | |
3604 | if test $in_tree_ld = yes || echo "$ld_ver" | grep GNU > /dev/null; then | |
3605 | hidden_linkonce=yes | |
3606 | else | |
3607 | case "${target}" in | |
3608 | # Full support for hidden thunks in linkonce sections only appeared in | |
3609 | # Solaris 11/OpenSolaris. | |
3610 | *-*-solaris2.1[[1-9]]*) | |
3611 | hidden_linkonce=yes | |
3612 | ;; | |
3613 | *) | |
3614 | hidden_linkonce=no | |
3615 | ;; | |
3616 | esac | |
3617 | fi | |
3618 | AC_MSG_RESULT($hidden_linkonce) | |
3619 | AC_DEFINE_UNQUOTED(USE_HIDDEN_LINKONCE, | |
3620 | [`if test $hidden_linkonce = yes; then echo 1; else echo 0; fi`], | |
3621 | [Define 0/1 if your linker supports hidden thunks in linkonce sections.]) | |
3622 | ;; | |
3623 | esac | |
3624 | ||
894f597f | 3625 | gcc_GAS_CHECK_FEATURE([line table is_stmt support], |
1918f4b7 | 3626 | gcc_cv_as_is_stmt,, |
894f597f AO |
3627 | [ .text |
3628 | .file 1 "conf.c" | |
3629 | .loc 1 1 0 is_stmt 1],, | |
3630 | [AC_DEFINE(HAVE_GAS_LOC_STMT, 1, | |
3631 | [Define if your assembler supports the .loc is_stmt sub-directive.])]) | |
3632 | ||
6c52e687 | 3633 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
1918f4b7 | 3634 | gcc_cv_as_discriminator,, |
6c52e687 CC |
3635 | [ .text |
3636 | .file 1 "conf.c" | |
3637 | .loc 1 1 0 discriminator 1],, | |
3638 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
3639 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
3640 | ||
02afb6a9 JL |
3641 | # Catch the newlib flag of the same name so we can gate GCC features on it. |
3642 | AC_ARG_ENABLE(newlib-nano-formatted-io, | |
3643 | [AS_HELP_STRING([--enable-newlib-nano-formatted-io], [Use nano version | |
3644 | formatted IO])], | |
3645 | [case "${enableval}" in | |
3646 | yes|no) | |
3647 | ;; | |
3648 | *) | |
3649 | AC_MSG_ERROR([unknown newlib-nano-formatted-io setting $enableval]) | |
3650 | ;; | |
3651 | esac], []) | |
3652 | ||
6a7a462c | 3653 | # Thread-local storage - the check is heavily parameterized. |
f996902d | 3654 | conftest_s= |
9739c90c | 3655 | tls_as_opt= |
f996902d RH |
3656 | case "$target" in |
3657 | changequote(,)dnl | |
6f9b006d RH |
3658 | alpha*-*-*) |
3659 | conftest_s=' | |
3660 | .section ".tdata","awT",@progbits | |
3661 | foo: .long 25 | |
3662 | .text | |
3663 | ldq $27,__tls_get_addr($29) !literal!1 | |
3664 | lda $16,foo($29) !tlsgd!1 | |
3665 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
3666 | ldq $27,__tls_get_addr($29) !literal!2 | |
3667 | lda $16,foo($29) !tlsldm!2 | |
3668 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
3669 | ldq $1,foo($29) !gotdtprel | |
3670 | ldah $2,foo($29) !dtprelhi | |
3671 | lda $3,foo($2) !dtprello | |
3672 | lda $4,foo($29) !dtprel | |
3673 | ldq $1,foo($29) !gottprel | |
3674 | ldah $2,foo($29) !tprelhi | |
3675 | lda $3,foo($2) !tprello | |
3676 | lda $4,foo($29) !tprel' | |
2f3321ca | 3677 | tls_as_opt=--fatal-warnings |
6f9b006d | 3678 | ;; |
28633bbd CZ |
3679 | arc*-*-*) |
3680 | conftest_s=' | |
3681 | add_s r0,r0, @foo@tpoff' | |
28633bbd | 3682 | ;; |
ad9646c7 HPN |
3683 | cris-*-*|crisv32-*-*) |
3684 | conftest_s=' | |
3685 | .section ".tdata","awT",@progbits | |
3686 | x: .long 25 | |
3687 | .text | |
3688 | move.d x:IE,$r10 | |
3689 | nop' | |
ad9646c7 HPN |
3690 | tls_as_opt=--fatal-warnings |
3691 | ;; | |
e4dd71de AH |
3692 | frv*-*-*) |
3693 | conftest_s=' | |
3694 | .section ".tdata","awT",@progbits | |
3695 | x: .long 25 | |
3696 | .text | |
3697 | call #gettlsoff(x)' | |
e4dd71de | 3698 | ;; |
51076f96 RC |
3699 | hppa*-*-linux*) |
3700 | conftest_s=' | |
3701 | t1: .reg %r20 | |
3702 | t2: .reg %r21 | |
3703 | gp: .reg %r19 | |
3704 | .section ".tdata","awT",@progbits | |
3705 | foo: .long 25 | |
3706 | .text | |
3707 | .align 4 | |
3708 | addil LT%foo-$tls_gdidx$,gp | |
3709 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
3710 | b __tls_get_addr | |
3711 | nop | |
3712 | addil LT%foo-$tls_ldidx$,gp | |
3713 | b __tls_get_addr | |
3714 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
3715 | addil LR%foo-$tls_dtpoff$,%ret0 | |
3716 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
3717 | mfctl %cr27,%t1 | |
3718 | addil LT%foo-$tls_ieoff$,gp | |
3719 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
3720 | add %t1,%t2,%t3 | |
3721 | mfctl %cr27,%t1 | |
3722 | addil LR%foo-$tls_leoff$,%t1 | |
3723 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
51076f96 RC |
3724 | tls_as_opt=--fatal-warnings |
3725 | ;; | |
d3585b76 DJ |
3726 | arm*-*-*) |
3727 | conftest_s=' | |
3728 | .section ".tdata","awT",%progbits | |
3729 | foo: .long 25 | |
3730 | .text | |
3731 | .word foo(gottpoff) | |
3732 | .word foo(tpoff) | |
3733 | .word foo(tlsgd) | |
3734 | .word foo(tlsldm) | |
3735 | .word foo(tlsldo)' | |
d3585b76 | 3736 | ;; |
fe4e71e4 | 3737 | i[34567]86-*-* | x86_64-*-*) |
f1c26cad | 3738 | case "$target" in |
ccd1242e | 3739 | i[34567]86-*-solaris2.* | x86_64-*-solaris2.*) |
f1c26cad | 3740 | on_solaris=yes |
fbdd5d87 | 3741 | ;; |
f1c26cad RO |
3742 | *) |
3743 | on_solaris=no | |
3744 | ;; | |
3745 | esac | |
3746 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3747 | conftest_s=' | |
3748 | .section .tdata,"awt",@progbits' | |
caa16d41 | 3749 | tls_section_flag=t |
f1c26cad RO |
3750 | changequote([,])dnl |
3751 | AC_DEFINE(TLS_SECTION_ASM_FLAG, 't', | |
3752 | [Define to the flag used to mark TLS sections if the default (`T') doesn't work.]) | |
3753 | changequote(,)dnl | |
3754 | else | |
3755 | conftest_s=' | |
3756 | .section ".tdata","awT",@progbits' | |
caa16d41 | 3757 | tls_section_flag=T |
f1c26cad RO |
3758 | tls_as_opt="--fatal-warnings" |
3759 | fi | |
fe4e71e4 RO |
3760 | case "$target" in |
3761 | i[34567]86-*-*) | |
700d4572 RO |
3762 | if test x$on_solaris = xyes; then |
3763 | case $gas_flag in | |
3764 | yes) tls_as_opt="$tls_as_opt --32" ;; | |
3765 | esac | |
3766 | fi | |
fe4e71e4 | 3767 | conftest_s="$conftest_s |
f996902d RH |
3768 | foo: .long 25 |
3769 | .text | |
3770 | movl %gs:0, %eax | |
f1c26cad RO |
3771 | leal foo@tlsgd(,%ebx,1), %eax |
3772 | leal foo@tlsldm(%ebx), %eax | |
3773 | leal foo@dtpoff(%eax), %edx | |
3774 | movl foo@gottpoff(%ebx), %eax | |
3775 | subl foo@gottpoff(%ebx), %eax | |
3776 | addl foo@gotntpoff(%ebx), %eax | |
3777 | movl foo@indntpoff, %eax | |
3778 | movl \$foo@tpoff, %eax | |
3779 | subl \$foo@tpoff, %eax | |
3780 | leal foo@ntpoff(%ecx), %eax" | |
fe4e71e4 RO |
3781 | ;; |
3782 | x86_64-*-*) | |
3783 | if test x$on_solaris = xyes; then | |
3784 | case $gas_flag in | |
3785 | yes) tls_as_opt="$tls_as_opt --64" ;; | |
3786 | no) tls_as_opt="$tls_as_opt -xarch=amd64" ;; | |
3787 | esac | |
3788 | fi | |
3789 | conftest_s="$conftest_s | |
75d38379 JJ |
3790 | foo: .long 25 |
3791 | .text | |
3792 | movq %fs:0, %rax | |
fe4e71e4 RO |
3793 | leaq foo@tlsgd(%rip), %rdi |
3794 | leaq foo@tlsld(%rip), %rdi | |
3795 | leaq foo@dtpoff(%rax), %rdx | |
3796 | movq foo@gottpoff(%rip), %rax | |
3797 | movq \$foo@tpoff, %rax" | |
3798 | ;; | |
3799 | esac | |
3800 | ;; | |
7b6e506e RH |
3801 | ia64-*-*) |
3802 | conftest_s=' | |
3803 | .section ".tdata","awT",@progbits | |
3804 | foo: data8 25 | |
3805 | .text | |
3806 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
3807 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
3808 | addl r18 = @ltoff(@tprel(foo#)), gp | |
3809 | addl r19 = @dtprel(foo#), gp | |
3810 | adds r21 = @dtprel(foo#), r13 | |
3811 | movl r23 = @dtprel(foo#) | |
3812 | addl r20 = @tprel(foo#), gp | |
3813 | adds r22 = @tprel(foo#), r13 | |
3814 | movl r24 = @tprel(foo#)' | |
2f3321ca | 3815 | tls_as_opt=--fatal-warnings |
7b6e506e | 3816 | ;; |
8cc9a5a5 EI |
3817 | microblaze*-*-*) |
3818 | conftest_s=' | |
3819 | .section .tdata,"awT",@progbits | |
3820 | x: | |
3821 | .word 2 | |
3822 | .text | |
3823 | addik r5,r20,x@TLSGD | |
3824 | addik r5,r20,x@TLSLDM' | |
8cc9a5a5 EI |
3825 | tls_as_opt='--fatal-warnings' |
3826 | ;; | |
69229b81 DJ |
3827 | mips*-*-*) |
3828 | conftest_s=' | |
3829 | .section .tdata,"awT",@progbits | |
3830 | x: | |
3831 | .word 2 | |
3832 | .text | |
3833 | addiu $4, $28, %tlsgd(x) | |
3834 | addiu $4, $28, %tlsldm(x) | |
3835 | lui $4, %dtprel_hi(x) | |
3836 | addiu $4, $4, %dtprel_lo(x) | |
3837 | lw $4, %gottprel(x)($28) | |
3838 | lui $4, %tprel_hi(x) | |
3839 | addiu $4, $4, %tprel_lo(x)' | |
69229b81 DJ |
3840 | tls_as_opt='-32 --fatal-warnings' |
3841 | ;; | |
75df395f MK |
3842 | m68k-*-*) |
3843 | conftest_s=' | |
3844 | .section .tdata,"awT",@progbits | |
3845 | x: | |
3846 | .word 2 | |
3847 | .text | |
3848 | foo: | |
3849 | move.l x@TLSGD(%a5),%a0 | |
3850 | move.l x@TLSLDM(%a5),%a0 | |
3851 | move.l x@TLSLDO(%a5),%a0 | |
3852 | move.l x@TLSIE(%a5),%a0 | |
3853 | move.l x@TLSLE(%a5),%a0' | |
75df395f MK |
3854 | tls_as_opt='--fatal-warnings' |
3855 | ;; | |
e430824f CLT |
3856 | nios2-*-*) |
3857 | conftest_s=' | |
3858 | .section ".tdata","awT",@progbits' | |
e430824f CLT |
3859 | tls_as_opt="--fatal-warnings" |
3860 | ;; | |
24034425 IB |
3861 | aarch64*-*-*) |
3862 | conftest_s=' | |
3863 | .section ".tdata","awT",%progbits | |
3864 | foo: .long 25 | |
3865 | .text | |
3866 | adrp x0, :tlsgd:x | |
3867 | add x0, x0, #:tlsgd_lo12:x | |
3868 | bl __tls_get_addr | |
3869 | nop' | |
24034425 IB |
3870 | tls_as_opt='--fatal-warnings' |
3871 | ;; | |
3965b35f SH |
3872 | or1k*-*-*) |
3873 | conftest_s=' | |
3874 | .section ".tdata","awT",@progbits | |
3875 | foo: .long 25 | |
3876 | .text | |
3877 | l.movhi r3, tpoffha(foo) | |
3878 | l.add r3, r3, r10 | |
3879 | l.lwz r4, tpofflo(foo)(r3)' | |
3965b35f SH |
3880 | tls_as_opt=--fatal-warnings |
3881 | ;; | |
7a8b1ec4 DE |
3882 | powerpc-ibm-aix*) |
3883 | conftest_s=' | |
3884 | .extern __get_tpointer | |
3885 | .toc | |
3886 | LC..1: | |
3887 | .tc a[TC],a[TL]@le | |
3888 | .csect .text[PR] | |
3889 | .tlstest: | |
3890 | lwz 9,LC..1(2) | |
3891 | bla __get_tpointer | |
3892 | lwzx 3,9,3 | |
3893 | .globl a | |
3894 | .csect a[TL],4 | |
3895 | a: | |
3896 | .space 4' | |
7a8b1ec4 | 3897 | ;; |
227eb343 | 3898 | powerpc64*-*-*) |
c4501e62 JJ |
3899 | conftest_s=' |
3900 | .section ".tdata","awT",@progbits | |
3901 | .align 3 | |
3902 | ld0: .space 8 | |
3903 | ld1: .space 8 | |
3904 | x1: .space 8 | |
3905 | x2: .space 8 | |
3906 | x3: .space 8 | |
3907 | .text | |
3908 | addi 3,2,ld0@got@tlsgd | |
3909 | bl .__tls_get_addr | |
3910 | nop | |
3911 | addi 3,2,ld1@toc | |
3912 | bl .__tls_get_addr | |
3913 | nop | |
3914 | addi 3,2,x1@got@tlsld | |
3915 | bl .__tls_get_addr | |
3916 | nop | |
3917 | addi 9,3,x1@dtprel | |
3918 | bl .__tls_get_addr | |
3919 | nop | |
3920 | addis 9,3,x2@dtprel@ha | |
3921 | addi 9,9,x2@dtprel@l | |
3922 | bl .__tls_get_addr | |
3923 | nop | |
3924 | ld 9,x3@got@dtprel(2) | |
3925 | add 9,9,3 | |
3926 | bl .__tls_get_addr | |
3927 | nop' | |
2f3321ca | 3928 | tls_as_opt="-a64 --fatal-warnings" |
c4501e62 | 3929 | ;; |
01ae4861 AM |
3930 | powerpc*-*-*) |
3931 | conftest_s=' | |
3932 | .section ".tdata","awT",@progbits | |
3933 | .align 2 | |
3934 | ld0: .space 4 | |
3935 | ld1: .space 4 | |
3936 | x1: .space 4 | |
3937 | x2: .space 4 | |
3938 | x3: .space 4 | |
3939 | .text | |
3940 | addi 3,31,ld0@got@tlsgd | |
3941 | bl __tls_get_addr | |
3942 | addi 3,31,x1@got@tlsld | |
3943 | bl __tls_get_addr | |
3944 | addi 9,3,x1@dtprel | |
3945 | addis 9,3,x2@dtprel@ha | |
3946 | addi 9,9,x2@dtprel@l | |
3947 | lwz 9,x3@got@tprel(31) | |
3948 | add 9,9,x@tls | |
3949 | addi 9,2,x1@tprel | |
3950 | addis 9,2,x2@tprel@ha | |
3951 | addi 9,9,x2@tprel@l' | |
01ae4861 AM |
3952 | tls_as_opt="-a32 --fatal-warnings" |
3953 | ;; | |
09cae750 PD |
3954 | riscv*-*-*) |
3955 | conftest_s=' | |
3956 | .section .tdata,"awT",@progbits | |
3957 | x: .word 2 | |
3958 | .text | |
3959 | la.tls.gd a0,x | |
3960 | call __tls_get_addr' | |
09cae750 PD |
3961 | tls_as_opt='--fatal-warnings' |
3962 | ;; | |
fd3cd001 UW |
3963 | s390-*-*) |
3964 | conftest_s=' | |
3965 | .section ".tdata","awT",@progbits | |
3966 | foo: .long 25 | |
3967 | .text | |
3968 | .long foo@TLSGD | |
3969 | .long foo@TLSLDM | |
3970 | .long foo@DTPOFF | |
3971 | .long foo@NTPOFF | |
3972 | .long foo@GOTNTPOFF | |
3973 | .long foo@INDNTPOFF | |
3974 | l %r1,foo@GOTNTPOFF(%r12) | |
3975 | l %r1,0(%r1):tls_load:foo | |
3976 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
3977 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2f3321ca | 3978 | tls_as_opt="-m31 --fatal-warnings" |
fd3cd001 UW |
3979 | ;; |
3980 | s390x-*-*) | |
3981 | conftest_s=' | |
3982 | .section ".tdata","awT",@progbits | |
3983 | foo: .long 25 | |
3984 | .text | |
3985 | .quad foo@TLSGD | |
3986 | .quad foo@TLSLDM | |
3987 | .quad foo@DTPOFF | |
3988 | .quad foo@NTPOFF | |
3989 | .quad foo@GOTNTPOFF | |
3990 | lg %r1,foo@GOTNTPOFF(%r12) | |
3991 | larl %r1,foo@INDNTPOFF | |
3992 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
3993 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2f3321ca | 3994 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
fd3cd001 | 3995 | ;; |
311adabe | 3996 | sh-*-* | sh[123456789lbe]*-*-*) |
9ff13962 KK |
3997 | conftest_s=' |
3998 | .section ".tdata","awT",@progbits | |
3999 | foo: .long 25 | |
4000 | .text | |
4001 | .long foo@TLSGD | |
4002 | .long foo@TLSLDM | |
4003 | .long foo@DTPOFF | |
4004 | .long foo@GOTTPOFF | |
4005 | .long foo@TPOFF' | |
2f3321ca | 4006 | tls_as_opt=--fatal-warnings |
9ff13962 | 4007 | ;; |
5751a10b | 4008 | sparc*-*-*) |
2f3321ca EB |
4009 | case "$target" in |
4010 | sparc*-sun-solaris2.*) | |
4011 | on_solaris=yes | |
4012 | ;; | |
4013 | *) | |
4014 | on_solaris=no | |
4015 | ;; | |
4016 | esac | |
4017 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
4018 | conftest_s=' | |
16c9d3b1 | 4019 | .section ".tdata",#alloc,#write,#tls' |
2f3321ca EB |
4020 | else |
4021 | conftest_s=' | |
16c9d3b1 | 4022 | .section ".tdata","awT",@progbits' |
16c9d3b1 RO |
4023 | tls_as_opt="-32 --fatal-warnings" |
4024 | fi | |
4025 | conftest_s="$conftest_s | |
5751a10b JJ |
4026 | foo: .long 25 |
4027 | .text | |
4028 | sethi %tgd_hi22(foo), %o0 | |
4029 | add %o0, %tgd_lo10(foo), %o1 | |
4030 | add %l7, %o1, %o0, %tgd_add(foo) | |
4031 | call __tls_get_addr, %tgd_call(foo) | |
4032 | sethi %tldm_hi22(foo), %l1 | |
4033 | add %l1, %tldm_lo10(foo), %l2 | |
4034 | add %l7, %l2, %o0, %tldm_add(foo) | |
4035 | call __tls_get_addr, %tldm_call(foo) | |
4036 | sethi %tldo_hix22(foo), %l3 | |
4037 | xor %l3, %tldo_lox10(foo), %l4 | |
4038 | add %o0, %l4, %l5, %tldo_add(foo) | |
4039 | sethi %tie_hi22(foo), %o3 | |
4040 | add %o3, %tie_lo10(foo), %o3 | |
4041 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
4042 | add %g7, %o2, %o4, %tie_add(foo) | |
4043 | sethi %tle_hix22(foo), %l1 | |
4044 | xor %l1, %tle_lox10(foo), %o5 | |
16c9d3b1 | 4045 | ld [%g7 + %o5], %o1" |
5751a10b | 4046 | ;; |
dd552284 WL |
4047 | tilepro*-*-*) |
4048 | conftest_s=' | |
4049 | .section ".tdata","awT",@progbits | |
4050 | foo: .long 25 | |
4051 | .text | |
4052 | addli r0, zero, tls_gd(foo) | |
4053 | auli r0, zero, tls_gd_ha16(foo) | |
4054 | addli r0, r0, tls_gd_lo16(foo) | |
4055 | jal __tls_get_addr | |
4056 | addli r0, zero, tls_ie(foo) | |
4057 | auli r0, r0, tls_ie_ha16(foo) | |
4058 | addli r0, r0, tls_ie_lo16(foo)' | |
dd552284 WL |
4059 | tls_as_opt="--fatal-warnings" |
4060 | ;; | |
4061 | tilegx*-*-*) | |
4062 | conftest_s=' | |
4063 | .section ".tdata","awT",@progbits | |
4064 | foo: .long 25 | |
4065 | .text | |
4066 | shl16insli r0, zero, hw0_last_tls_gd(foo) | |
4067 | shl16insli r0, zero, hw1_last_tls_gd(foo) | |
4068 | shl16insli r0, r0, hw0_tls_gd(foo) | |
4069 | jal __tls_get_addr | |
4070 | shl16insli r0, zero, hw1_last_tls_ie(foo) | |
4071 | shl16insli r0, r0, hw0_tls_ie(foo)' | |
dd552284 WL |
4072 | tls_as_opt="--fatal-warnings" |
4073 | ;; | |
6a7a462c BW |
4074 | xtensa*-*-*) |
4075 | conftest_s=' | |
4076 | .section ".tdata","awT",@progbits | |
4077 | foo: .long 25 | |
4078 | .text | |
4079 | movi a8, foo@TLSFUNC | |
4080 | movi a10, foo@TLSARG | |
4081 | callx8.tls a8, foo@TLSCALL' | |
6a7a462c | 4082 | ;; |
5751a10b | 4083 | changequote([,])dnl |
f996902d | 4084 | esac |
8dea1cca DD |
4085 | set_have_as_tls=no |
4086 | if test "x$enable_tls" = xno ; then | |
4087 | : # TLS explicitly disabled. | |
4088 | elif test "x$enable_tls" = xyes ; then | |
4089 | set_have_as_tls=yes # TLS explicitly enabled. | |
9b24c20c | 4090 | elif test -z "$conftest_s"; then |
8ada417f ZW |
4091 | : # If we don't have a check, assume no support. |
4092 | else | |
4093 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
e0b6d0b3 | 4094 | [$tls_as_opt], [$conftest_s],, |
8dea1cca DD |
4095 | [set_have_as_tls=yes]) |
4096 | fi | |
4097 | if test $set_have_as_tls = yes ; then | |
4098 | AC_DEFINE(HAVE_AS_TLS, 1, | |
16c9d3b1 | 4099 | [Define if your assembler and linker support thread-local storage.]) |
f996902d | 4100 | fi |
8ada417f ZW |
4101 | |
4102 | # Target-specific assembler checks. | |
f996902d | 4103 | |
7e9d8517 L |
4104 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
4105 | gcc_cv_ld_static_dynamic=no | |
c6092243 RO |
4106 | gcc_cv_ld_static_option='-Bstatic' |
4107 | gcc_cv_ld_dynamic_option='-Bdynamic' | |
7e9d8517 | 4108 | if test $in_tree_ld = yes ; then |
83f0ccb8 | 4109 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then |
7e9d8517 L |
4110 | gcc_cv_ld_static_dynamic=yes |
4111 | fi | |
4112 | elif test x$gcc_cv_ld != x; then | |
bb127cd8 | 4113 | # Check if linker supports -Bstatic/-Bdynamic option |
8dc877eb RO |
4114 | if $gcc_cv_ld --help 2>&1 | grep -- -Bstatic > /dev/null \ |
4115 | && $gcc_cv_ld --help 2>&1 | grep -- -Bdynamic > /dev/null; then | |
bb127cd8 RO |
4116 | gcc_cv_ld_static_dynamic=yes |
4117 | else | |
4118 | case "$target" in | |
478f60f9 MH |
4119 | # AIX ld uses -b flags |
4120 | *-*-aix4.[[23]]* | *-*-aix[[5-9]]*) | |
4121 | gcc_cv_ld_static_dynamic=yes | |
4122 | gcc_cv_ld_static_option="-bstatic" | |
4123 | gcc_cv_ld_dynamic_option="-bdynamic" | |
4124 | ;; | |
f903e000 SE |
4125 | # HP-UX ld uses -a flags to select between shared and archive. |
4126 | *-*-hpux*) | |
4127 | if test x"$gnu_ld" = xno; then | |
4128 | gcc_cv_ld_static_dynamic=yes | |
4129 | gcc_cv_ld_static_option="-aarchive_shared" | |
4130 | gcc_cv_ld_dynamic_option="-adefault" | |
4131 | fi | |
4132 | ;; | |
bb127cd8 RO |
4133 | # Solaris 2 ld always supports -Bstatic/-Bdynamic. |
4134 | *-*-solaris2*) | |
4135 | gcc_cv_ld_static_dynamic=yes | |
4136 | ;; | |
4137 | esac | |
4138 | fi | |
7e9d8517 L |
4139 | fi |
4140 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
4141 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
c6092243 RO |
4142 | [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.]) |
4143 | AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option", | |
4144 | [Define to the linker option to disable use of shared objects.]) | |
4145 | AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option", | |
4146 | [Define to the linker option to enable use of shared objects.]) | |
7e9d8517 L |
4147 | fi |
4148 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
4149 | ||
deb3da39 DM |
4150 | AC_MSG_CHECKING(linker --version-script option) |
4151 | gcc_cv_ld_version_script=no | |
4152 | ld_version_script_option='' | |
4153 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
4154 | gcc_cv_ld_version_script=yes | |
4155 | ld_version_script_option='--version-script' | |
4156 | elif test x$gcc_cv_ld != x; then | |
4157 | case "$target" in | |
4158 | # Solaris 2 ld always supports -M. It also supports a subset of | |
4159 | # --version-script since Solaris 11.4, but requires | |
4160 | # -z gnu-version-script-compat to activate. | |
4161 | *-*-solaris2*) | |
4162 | gcc_cv_ld_version_script=yes | |
4163 | ld_version_script_option='-M' | |
4164 | ;; | |
4165 | esac | |
4166 | fi | |
4167 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
4168 | AC_MSG_RESULT($gcc_cv_ld_version_script) | |
4169 | AC_SUBST(ld_version_script_option) | |
4170 | ||
4171 | AC_MSG_CHECKING(linker soname option) | |
4172 | gcc_cv_ld_soname=no | |
4173 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
4174 | gcc_cv_ld_soname=yes | |
4175 | ld_soname_option='-soname' | |
4176 | elif test x$gcc_cv_ld != x; then | |
4177 | case "$target" in | |
4178 | *-*-darwin*) | |
4179 | gcc_cv_ld_soname=yes | |
4180 | ld_soname_option='-install_name' | |
4181 | ;; | |
ea143da7 RO |
4182 | # Solaris 2 ld always supports -h. It also supports --soname for GNU |
4183 | # ld compatiblity since some Solaris 10 update. | |
4184 | *-*-solaris2*) | |
4185 | gcc_cv_ld_soname=yes | |
4186 | ld_soname_option='-h' | |
4187 | ;; | |
deb3da39 DM |
4188 | esac |
4189 | fi | |
4190 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
4191 | AC_MSG_RESULT($gcc_cv_ld_soname) | |
4192 | AC_SUBST(ld_soname_option) | |
4193 | ||
d594623a L |
4194 | if test x"$demangler_in_ld" = xyes; then |
4195 | AC_MSG_CHECKING(linker --demangle support) | |
4196 | gcc_cv_ld_demangle=no | |
4197 | if test $in_tree_ld = yes; then | |
4198 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
4199 | gcc_cv_ld_demangle=yes | |
4200 | fi | |
4201 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
4202 | # Check if the GNU linker supports --demangle option | |
8dc877eb | 4203 | if $gcc_cv_ld --help 2>&1 | grep no-demangle > /dev/null; then |
d594623a L |
4204 | gcc_cv_ld_demangle=yes |
4205 | fi | |
4206 | fi | |
4207 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
4208 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
4209 | [Define if your linker supports --demangle option.]) | |
4210 | fi | |
4211 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
4212 | fi | |
4213 | ||
96bdf9b4 | 4214 | AC_MSG_CHECKING(linker plugin support) |
55b46574 | 4215 | gcc_cv_lto_plugin=0 |
f3d533d3 | 4216 | if test -f liblto_plugin.la; then |
df33b41f RO |
4217 | save_ld_ver="$ld_ver" |
4218 | save_ld_vers_major="$ld_vers_major" | |
4219 | save_ld_vers_minor="$ld_vers_minor" | |
4220 | save_ld_is_gold="$ld_is_gold" | |
4221 | ||
4222 | ld_is_gold=no | |
55b46574 | 4223 | |
df33b41f RO |
4224 | if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then |
4225 | ld_ver="GNU ld" | |
4226 | # FIXME: ld_is_gold? | |
4227 | ld_vers_major="$gcc_cv_gld_major_version" | |
4228 | ld_vers_minor="$gcc_cv_gld_minor_version" | |
4229 | else | |
4230 | # Determine plugin linker version. | |
4231 | # FIXME: Partial duplicate from above, generalize. | |
4232 | changequote(,)dnl | |
4233 | ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q` | |
4234 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4235 | if echo "$ld_ver" | grep "GNU gold" > /dev/null; then | |
4236 | ld_is_gold=yes | |
4237 | ld_vers=`echo $ld_ver | sed -n \ | |
4238 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
4239 | else | |
4240 | ld_vers=`echo $ld_ver | sed -n \ | |
4241 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
4242 | fi | |
4243 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
4244 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
55b46574 | 4245 | fi |
df33b41f RO |
4246 | changequote([,])dnl |
4247 | fi | |
4248 | ||
4249 | # Determine plugin support. | |
4250 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
55b46574 RO |
4251 | # Require GNU ld or gold 2.21+ for plugin support by default. |
4252 | if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then | |
4253 | gcc_cv_lto_plugin=2 | |
4254 | # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20. | |
4255 | elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then | |
4256 | gcc_cv_lto_plugin=1 | |
96bdf9b4 | 4257 | fi |
96bdf9b4 | 4258 | fi |
df33b41f RO |
4259 | |
4260 | ld_ver="$save_ld_ver" | |
4261 | ld_vers_major="$save_ld_vers_major" | |
4262 | ld_vers_minor="$save_ld_vers_minor" | |
4263 | ld_is_gold="$save_ld_is_gold" | |
96bdf9b4 | 4264 | fi |
55b46574 RO |
4265 | AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin, |
4266 | [Define to the level of your linker's plugin support.]) | |
96bdf9b4 JH |
4267 | AC_MSG_RESULT($gcc_cv_lto_plugin) |
4268 | ||
b410cf1d IS |
4269 | # Target OS-specific assembler checks. |
4270 | ||
4271 | case "$target_os" in | |
4272 | darwin*) | |
4273 | gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option], | |
e0b6d0b3 | 4274 | gcc_cv_as_mmacosx_version_min, |
b410cf1d IS |
4275 | [-mmacosx-version-min=10.1], [.text],, |
4276 | [AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1, | |
4277 | [Define if your Mac OS X assembler supports the -mmacos-version-min option.])]) | |
4278 | ;; | |
4279 | esac | |
4280 | ||
4281 | # Target CPU-specific assembler checks. | |
4282 | ||
275b60d6 | 4283 | case "$target" in |
63892fa2 | 4284 | aarch64*-*-*) |
e0b6d0b3 | 4285 | gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi, |
63892fa2 KV |
4286 | [-mabi=lp64], [.text],,,) |
4287 | if test x$gcc_cv_as_aarch64_mabi = xyes; then | |
4288 | AC_DEFINE(HAVE_AS_MABI_OPTION, 1, | |
4289 | [Define if your assembler supports the -mabi option.]) | |
4290 | else | |
4291 | if test x$with_abi = xilp32; then | |
4292 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4293 | Upgrade the Assembler.]) | |
4294 | fi | |
4295 | if test x"$with_multilib_list" = xdefault; then | |
4296 | TM_MULTILIB_CONFIG=lp64 | |
4297 | else | |
4298 | aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'` | |
4299 | for aarch64_multilib in ${aarch64_multilibs}; do | |
4300 | case ${aarch64_multilib} in | |
4301 | ilp32) | |
4302 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4303 | Upgrade the Assembler.]) | |
4304 | ;; | |
4305 | *) | |
4306 | ;; | |
4307 | esac | |
4308 | done | |
4309 | fi | |
4310 | fi | |
34ecdb0f | 4311 | # Check if we have binutils support for relocations types needed by -fpic |
e0b6d0b3 | 4312 | gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,, |
34ecdb0f JW |
4313 | [ |
4314 | .text | |
4315 | ldr x0, [[x2, #:gotpage_lo15:globalsym]] | |
4316 | ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1, | |
4317 | [Define if your assembler supports relocs needed by -fpic.])]) | |
c7ff4f0f SD |
4318 | # Enable Branch Target Identification Mechanism and Return Address |
4319 | # Signing by default. | |
4320 | AC_ARG_ENABLE(standard-branch-protection, | |
4321 | [ | |
4322 | AS_HELP_STRING([--enable-standard-branch-protection], | |
4323 | [enable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4324 | AS_HELP_STRING([--disable-standard-branch-protection], | |
4325 | [disable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4326 | ], | |
4327 | [ | |
4328 | case $enableval in | |
4329 | yes) | |
4330 | tm_defines="${tm_defines} TARGET_ENABLE_BTI=1 TARGET_ENABLE_PAC_RET=1" | |
4331 | ;; | |
4332 | no) | |
4333 | ;; | |
4334 | *) | |
4335 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-standard-branch-protection.\ | |
4336 | Valid choices are 'yes' and 'no'.]) | |
4337 | ;; | |
4338 | esac | |
4339 | ], | |
4340 | []) | |
5e396da6 KT |
4341 | # Enable default workaround for AArch64 Cortex-A53 erratum 835769. |
4342 | AC_ARG_ENABLE(fix-cortex-a53-835769, | |
4343 | [ | |
4344 | AS_HELP_STRING([--enable-fix-cortex-a53-835769], | |
4345 | [enable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4346 | AS_HELP_STRING([--disable-fix-cortex-a53-835769], | |
4347 | [disable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4348 | ], | |
4349 | [ | |
4350 | case $enableval in | |
4351 | yes) | |
4352 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1" | |
4353 | ;; | |
4354 | no) | |
4355 | ;; | |
4356 | *) | |
4357 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\ | |
4358 | Valid choices are 'yes' and 'no'.]) | |
4359 | ;; | |
4360 | ||
4361 | esac | |
4362 | ], | |
4363 | []) | |
bf05ef76 YR |
4364 | # Enable default workaround for AArch64 Cortex-A53 erratum 843419. |
4365 | AC_ARG_ENABLE(fix-cortex-a53-843419, | |
4366 | [ | |
4367 | AS_HELP_STRING([--enable-fix-cortex-a53-843419], | |
4368 | [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4369 | AS_HELP_STRING([--disable-fix-cortex-a53-843419], | |
4370 | [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4371 | ], | |
4372 | [ | |
4373 | case $enableval in | |
4374 | yes) | |
4375 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" | |
4376 | ;; | |
4377 | no) | |
4378 | ;; | |
4379 | *) | |
4380 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ | |
4381 | Valid choices are 'yes' and 'no'.]) | |
4382 | ;; | |
4383 | ||
4384 | esac | |
4385 | ], | |
4386 | []) | |
63892fa2 KV |
4387 | ;; |
4388 | ||
3a37b08e | 4389 | # All TARGET_ABI_OSF targets. |
5c30094f | 4390 | alpha*-*-linux* | alpha*-*-*bsd*) |
8ada417f | 4391 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
e0b6d0b3 | 4392 | gcc_cv_as_alpha_explicit_relocs,, |
8ada417f | 4393 | [ .set nomacro |
3a37b08e RH |
4394 | .text |
4395 | extbl $3, $2, $3 !lituse_bytoff!1 | |
4396 | ldq $2, a($29) !literal!1 | |
4397 | ldq $4, b($29) !literal!2 | |
4398 | ldq_u $3, 0($2) !lituse_base!1 | |
4399 | ldq $27, f($29) !literal!5 | |
4400 | jsr $26, ($27), f !lituse_jsr!5 | |
4401 | ldah $29, 0($26) !gpdisp!3 | |
4402 | lda $0, c($29) !gprel | |
4403 | ldah $1, d($29) !gprelhigh | |
4404 | lda $1, d($1) !gprellow | |
8ada417f ZW |
4405 | lda $29, 0($29) !gpdisp!3],, |
4406 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
4407 | [Define if your assembler supports explicit relocations.])]) | |
d006f5eb | 4408 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
e0b6d0b3 | 4409 | gcc_cv_as_alpha_jsrdirect_relocs,, |
d006f5eb RH |
4410 | [ .set nomacro |
4411 | .text | |
4412 | ldq $27, a($29) !literal!1 | |
4413 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
4414 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
4415 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
3a37b08e | 4416 | ;; |
e95b1e6a | 4417 | |
0c9dc4ae | 4418 | avr-*-*) |
e0b6d0b3 | 4419 | gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax, |
0c9dc4ae GJL |
4420 | [--mlink-relax], [.text],, |
4421 | [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1, | |
4422 | [Define if your avr assembler supports --mlink-relax option.])]) | |
4423 | ||
e0b6d0b3 | 4424 | gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw, |
0c9dc4ae GJL |
4425 | [-mrmw], [.text],, |
4426 | [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1, | |
4427 | [Define if your avr assembler supports -mrmw option.])]) | |
3266ddb3 | 4428 | |
63866e04 | 4429 | gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction], |
e0b6d0b3 | 4430 | gcc_cv_as_avr_mgccisr, |
63866e04 GJL |
4431 | [-mgcc-isr], [.text |
4432 | __gcc_isr 1 | |
4433 | __gcc_isr 2 | |
4434 | __gcc_isr 0,r24 | |
4435 | ],, | |
4436 | [AC_DEFINE(HAVE_AS_AVR_MGCCISR_OPTION, 1, | |
4437 | [Define if your avr assembler supports -mgcc-isr option.])]) | |
4438 | ||
3266ddb3 GJL |
4439 | # Check how default linker description file implements .rodata for |
4440 | # avrxmega3 (PR21472). avr-gcc assumes .rodata is *not* loaded to | |
4441 | # RAM so avr-gcc skips __do_copy_data for .rodata objects. | |
4442 | AC_MSG_CHECKING(binutils for avrxmega3 .rodata support) | |
4443 | cat > conftest.s <<EOF | |
4444 | .section .rodata,"a",@progbits | |
4445 | .global xxvaryy | |
4446 | ;; avr-nm should print "... R xxvaryy", not "... D xxvaryy". | |
4447 | xxvaryy: | |
4448 | .word 1 | |
4449 | EOF | |
4450 | rm -f conftest.nm | |
4451 | AC_TRY_COMMAND([$gcc_cv_as -mmcu=avrxmega3 conftest.s -o conftest.o]) | |
4452 | AC_TRY_COMMAND([$gcc_cv_ld -mavrxmega3 conftest.o -o conftest.elf]) | |
4453 | AC_TRY_COMMAND([$gcc_cv_nm conftest.elf > conftest.nm]) | |
98f9d0ca | 4454 | if test -s conftest.nm |
3266ddb3 GJL |
4455 | then |
4456 | if grep ' R xxvaryy' conftest.nm > /dev/null; then | |
4457 | AC_MSG_RESULT(yes) | |
98f9d0ca GJL |
4458 | AC_DEFINE(HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH, 1, |
4459 | [Define if your default avr linker script for avrxmega3 leaves .rodata in flash.]) | |
3266ddb3 GJL |
4460 | else |
4461 | AC_MSG_RESULT(no: avrxmega3 .rodata located in RAM) | |
4462 | echo "$as_me: nm output was" >&AS_MESSAGE_LOG_FD | |
4463 | cat conftest.nm >&AS_MESSAGE_LOG_FD | |
3266ddb3 | 4464 | avr_ld_ver="`$gcc_cv_ld -v | sed -e 's:^.* ::'`" |
98f9d0ca | 4465 | AC_MSG_WARN([[support for avrxmega3 .rodata in flash needs Binutils 2.29 or higher (have $avr_ld_ver)]]) |
3266ddb3 GJL |
4466 | fi |
4467 | else | |
4468 | AC_MSG_RESULT(test failed) | |
4469 | echo "$as_me: failed program was" >&AS_MESSAGE_LOG_FD | |
4470 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
98f9d0ca | 4471 | AC_MSG_WARN([[see `config.log' for details]]) |
3266ddb3 | 4472 | fi |
98f9d0ca | 4473 | rm -f conftest.s conftest.o conftest.elf conftest.nm |
0c9dc4ae GJL |
4474 | ;; |
4475 | ||
682a45fc HPN |
4476 | cris-*-*) |
4477 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
e0b6d0b3 | 4478 | gcc_cv_as_cris_no_mul_bug, |
682a45fc HPN |
4479 | [-no-mul-bug-abort], [.text],, |
4480 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
4481 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
4482 | ;; | |
4483 | ||
8ada417f | 4484 | sparc*-*-*) |
e0b6d0b3 | 4485 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax, |
8ada417f ZW |
4486 | [-relax], [.text],, |
4487 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
4488 | [Define if your assembler supports -relax option.])]) | |
4489 | ||
878ee0ab | 4490 | gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs], |
e0b6d0b3 | 4491 | gcc_cv_as_sparc_gotdata_op, |
878ee0ab DM |
4492 | [-K PIC], |
4493 | [.text | |
6d7b45ad | 4494 | .align 4 |
878ee0ab DM |
4495 | foo: |
4496 | nop | |
4497 | bar: | |
4498 | sethi %gdop_hix22(foo), %g1 | |
4499 | xor %g1, %gdop_lox10(foo), %g1 | |
4500 | ld [[%l7 + %g1]], %g2, %gdop(foo)], | |
4501 | [if test x$gcc_cv_ld != x \ | |
46bc665f | 4502 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then |
7673c962 RO |
4503 | if test x$gcc_cv_objdump != x; then |
4504 | if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ | |
4505 | | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then | |
46bc665f | 4506 | gcc_cv_as_sparc_gotdata_op=no |
7673c962 | 4507 | else |
46bc665f | 4508 | gcc_cv_as_sparc_gotdata_op=yes |
46bc665f | 4509 | fi |
46bc665f | 4510 | fi |
878ee0ab DM |
4511 | fi |
4512 | rm -f conftest], | |
4513 | [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1, | |
4514 | [Define if your assembler and linker support GOTDATA_OP relocs.])]) | |
4515 | ||
8ada417f | 4516 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], |
e0b6d0b3 | 4517 | gcc_cv_as_sparc_ua_pcrel, |
8ada417f ZW |
4518 | [-K PIC], |
4519 | [.text | |
4520 | foo: | |
4521 | nop | |
4522 | .data | |
4523 | .align 4 | |
4524 | .byte 0 | |
4525 | .uaword %r_disp32(foo)], | |
4526 | [if test x$gcc_cv_ld != x \ | |
4527 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
4528 | gcc_cv_as_sparc_ua_pcrel=yes | |
4529 | fi | |
4530 | rm -f conftest], | |
4531 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
17e9e88c | 4532 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
cf7b8b0d | 4533 | |
8ada417f | 4534 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
e0b6d0b3 | 4535 | gcc_cv_as_sparc_ua_pcrel_hidden, |
8ada417f ZW |
4536 | [-K PIC], |
4537 | [.data | |
4538 | .align 4 | |
4539 | .byte 0x31 | |
4540 | .uaword %r_disp32(foo) | |
4541 | .byte 0x32, 0x33, 0x34 | |
4542 | .global foo | |
4543 | .hidden foo | |
4544 | foo: | |
4545 | .skip 4], | |
4546 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4547 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
4548 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
4549 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
4550 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
4551 | | grep 'DISP32' > /dev/null 2>&1; then | |
4552 | : | |
22252625 | 4553 | else |
8ada417f | 4554 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
5b68c389 | 4555 | fi |
8ada417f ZW |
4556 | fi |
4557 | rm -f conftest], | |
4558 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
4559 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
4560 | ]) # unaligned pcrel relocs | |
4561 | ||
4562 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
e0b6d0b3 | 4563 | gcc_cv_as_sparc_offsetable_lo10, |
8ada417f ZW |
4564 | [-xarch=v9], |
4565 | [.text | |
4566 | or %g1, %lo(ab) + 12, %g1 | |
4567 | or %g1, %lo(ab + 12), %g1], | |
4568 | [if test x$gcc_cv_objdump != x \ | |
ecb0ccbc | 4569 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
8ada417f | 4570 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
1b5c0152 | 4571 | gcc_cv_as_sparc_offsetable_lo10=yes |
8ada417f ZW |
4572 | fi], |
4573 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
4574 | [Define if your assembler supports offsetable %lo().])]) | |
e8b141b5 DM |
4575 | |
4576 | gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions], | |
e0b6d0b3 | 4577 | gcc_cv_as_sparc_fmaf, |
e8b141b5 DM |
4578 | [-xarch=v9d], |
4579 | [.text | |
26e2f443 DM |
4580 | .register %g2, #scratch |
4581 | .register %g3, #scratch | |
e8b141b5 DM |
4582 | .align 4 |
4583 | fmaddd %f0, %f2, %f4, %f6 | |
4584 | addxccc %g1, %g2, %g3 | |
4585 | fsrl32 %f2, %f4, %f8 | |
4586 | fnaddd %f10, %f12, %f14],, | |
4587 | [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1, | |
4588 | [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])]) | |
8b98b5fd DM |
4589 | |
4590 | gcc_GAS_CHECK_FEATURE([SPARC4 instructions], | |
e0b6d0b3 | 4591 | gcc_cv_as_sparc_sparc4, |
8b98b5fd DM |
4592 | [-xarch=sparc4], |
4593 | [.text | |
4594 | .register %g2, #scratch | |
4595 | .register %g3, #scratch | |
4596 | .align 4 | |
4597 | cxbe %g2, %g3, 1f | |
4598 | 1: cwbneg %g2, %g3, 1f | |
4599 | 1: sha1 | |
4600 | md5 | |
4601 | aes_kexpand0 %f4, %f6, %f8 | |
4602 | des_round %f38, %f40, %f42, %f44 | |
4603 | camellia_f %f54, %f56, %f58, %f60 | |
4604 | kasumi_fi_xor %f46, %f48, %f50, %f52],, | |
4605 | [AC_DEFINE(HAVE_AS_SPARC4, 1, | |
4606 | [Define if your assembler supports SPARC4 instructions.])]) | |
1f65ae7a | 4607 | |
690f24b7 | 4608 | gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions], |
e0b6d0b3 | 4609 | gcc_cv_as_sparc_sparc5, |
690f24b7 JM |
4610 | [-xarch=sparc5], |
4611 | [.text | |
4612 | .register %g2, #scratch | |
4613 | .register %g3, #scratch | |
4614 | .align 4 | |
4615 | subxc %g1, %g2, %g3 | |
4616 | fpadd8 %f0, %f2, %f4],, | |
4617 | [AC_DEFINE(HAVE_AS_SPARC5_VIS4, 1, | |
4618 | [Define if your assembler supports SPARC5 and VIS 4.0 instructions.])]) | |
4619 | ||
bcc3c3f1 | 4620 | gcc_GAS_CHECK_FEATURE([SPARC6 instructions], |
e0b6d0b3 | 4621 | gcc_cv_as_sparc_sparc6, |
bcc3c3f1 JM |
4622 | [-xarch=sparc6], |
4623 | [.text | |
4624 | .register %g2, #scratch | |
4625 | .register %g3, #scratch | |
4626 | .align 4 | |
4627 | rd %entropy, %g1 | |
4628 | fpsll64x %f0, %f2, %f4],, | |
4629 | [AC_DEFINE(HAVE_AS_SPARC6, 1, | |
4630 | [Define if your assembler supports SPARC6 instructions.])]) | |
4631 | ||
1f65ae7a | 4632 | gcc_GAS_CHECK_FEATURE([LEON instructions], |
e0b6d0b3 | 4633 | gcc_cv_as_sparc_leon, |
1f65ae7a EB |
4634 | [-Aleon], |
4635 | [.text | |
4636 | .register %g2, #scratch | |
4637 | .register %g3, #scratch | |
4638 | .align 4 | |
4639 | smac %g2, %g3, %g1 | |
4640 | umac %g2, %g3, %g1 | |
ba21a04a | 4641 | casa [[%g2]] 0xb, %g3, %g1],, |
1f65ae7a EB |
4642 | [AC_DEFINE(HAVE_AS_LEON, 1, |
4643 | [Define if your assembler supports LEON instructions.])]) | |
1cb36a98 RH |
4644 | ;; |
4645 | ||
4646 | changequote(,)dnl | |
c307e6dd | 4647 | i[34567]86-*-* | x86_64-*-*) |
1cb36a98 | 4648 | changequote([,])dnl |
f7e413e2 DK |
4649 | case $target_os in |
4650 | cygwin*) | |
4651 | # Full C++ conformance when using a shared libstdc++-v3 requires some | |
4652 | # support from the Cygwin DLL, which in more recent versions exports | |
4653 | # wrappers to aid in interposing and redirecting operators new, delete, | |
4654 | # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we | |
4655 | # are configuring for a version of Cygwin that exports the wrappers. | |
b802ae5c | 4656 | if test x$host = x$target && test x$host_cpu = xi686; then |
f7e413e2 DK |
4657 | AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) |
4658 | else | |
4659 | # Can't check presence of libc functions during cross-compile, so | |
4660 | # we just have to assume we're building for an up-to-date target. | |
4661 | gcc_ac_cygwin_dll_wrappers=yes | |
4662 | fi | |
4663 | AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, | |
4664 | [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], | |
4665 | [Define if you want to generate code by default that assumes that the | |
4666 | Cygwin DLL exports wrappers to support libstdc++ function replacement.]) | |
4667 | esac | |
d38bc601 | 4668 | case $target_os in |
ee2499b4 | 4669 | cygwin* | pe | mingw32*) |
233215fe DK |
4670 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
4671 | # definition is used unconditionally to initialise the default state of | |
4672 | # the target option variable that governs usage of the feature. | |
1918f4b7 SB |
4673 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,, |
4674 | [.comm foo,1,32]) | |
233215fe DK |
4675 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, |
4676 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
4677 | [Define if your assembler supports specifying the alignment | |
4678 | of objects allocated using the GAS .comm command.]) | |
d38bc601 BF |
4679 | # Used for DWARF 2 in PE |
4680 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
1918f4b7 | 4681 | gcc_cv_as_ix86_pe_secrel32,, |
d38bc601 BF |
4682 | [.text |
4683 | foo: nop | |
4684 | .data | |
4685 | .secrel32 foo], | |
4686 | [if test x$gcc_cv_ld != x \ | |
4687 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
4688 | gcc_cv_as_ix86_pe_secrel32=yes | |
4689 | fi | |
4690 | rm -f conftest], | |
4691 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
4692 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
3bec79c5 DK |
4693 | # Test if the assembler supports the extended form of the .section |
4694 | # directive that specifies section alignment. LTO support uses this, | |
4695 | # but normally only after installation, so we warn but don't fail the | |
4696 | # configure if LTO is enabled but the assembler does not support it. | |
4697 | gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align, | |
e0b6d0b3 | 4698 | -fatal-warnings,[.section lto_test,"dr0"]) |
3bec79c5 DK |
4699 | if test x$gcc_cv_as_section_has_align != xyes; then |
4700 | case ",$enable_languages," in | |
4701 | *,lto,*) | |
4702 | AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.]) | |
4703 | ;; | |
4704 | esac | |
4705 | fi | |
d38bc601 BF |
4706 | ;; |
4707 | esac | |
743b8dd6 | 4708 | case $target_os in |
f18cbc1e | 4709 | darwin2* | darwin19*) |
743b8dd6 | 4710 | gcc_GAS_CHECK_FEATURE([llvm assembler x86-pad-for-align option], |
e5d9873f | 4711 | gcc_cv_as_mllvm_x86_pad_for_align, |
743b8dd6 IS |
4712 | [-mllvm -x86-pad-for-align=false], [.text],, |
4713 | [AC_DEFINE(HAVE_AS_MLLVM_X86_PAD_FOR_ALIGN, 1, | |
4714 | [Define if your Mac OS X assembler supports -mllvm -x86-pad-for-align=false.])]) | |
4715 | ;; | |
4716 | esac | |
d38bc601 | 4717 | |
e0b6d0b3 | 4718 | gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment, |
8c2e5ecf RO |
4719 | [-xbrace_comment=no], [.text],, |
4720 | [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1, | |
4721 | [Define if your assembler supports -xbrace_comment option.])]) | |
4722 | ||
8ada417f | 4723 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
e0b6d0b3 | 4724 | gcc_cv_as_ix86_filds,, |
005f915e | 4725 | [filds (%ebp); fists (%ebp)],, |
a3a5e3d1 UB |
4726 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, |
4727 | [Define if your assembler uses filds and fists mnemonics.])]) | |
4728 | ||
4729 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
e0b6d0b3 | 4730 | gcc_cv_as_ix86_fildq,, |
005f915e | 4731 | [fildq (%ebp); fistpq (%ebp)],, |
a3a5e3d1 UB |
4732 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, |
4733 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
8ada417f | 4734 | |
f6f5dff2 | 4735 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
e0b6d0b3 | 4736 | gcc_cv_as_ix86_cmov_sun_syntax,, |
f6f5dff2 RO |
4737 | [cmovl.l %edx, %eax],, |
4738 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
4739 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
4740 | ||
b6c03bcd | 4741 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
e0b6d0b3 | 4742 | gcc_cv_as_ix86_ffreep,, |
b6c03bcd RS |
4743 | [ffreep %st(1)],, |
4744 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
4745 | [Define if your assembler supports the ffreep mnemonic.])]) | |
4746 | ||
ed104137 | 4747 | gcc_GAS_CHECK_FEATURE([.quad directive], |
e0b6d0b3 | 4748 | gcc_cv_as_ix86_quad,, |
ed104137 RO |
4749 | [.quad 0],, |
4750 | [AC_DEFINE(HAVE_AS_IX86_QUAD, 1, | |
4751 | [Define if your assembler supports the .quad directive.])]) | |
4752 | ||
38ca3765 | 4753 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
e0b6d0b3 | 4754 | gcc_cv_as_ix86_sahf,, |
953c29f7 UB |
4755 | [.code64 |
4756 | sahf],, | |
38ca3765 | 4757 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, |
953c29f7 | 4758 | [Define if your assembler supports the sahf mnemonic in 64bit mode.])]) |
38ca3765 | 4759 | |
fe04878d | 4760 | gcc_GAS_CHECK_FEATURE([interunit movq mnemonic], |
e0b6d0b3 | 4761 | gcc_cv_as_ix86_interunit_movq,, |
fe04878d UB |
4762 | [.code64 |
4763 | movq %mm0, %rax | |
13a26a7d UB |
4764 | movq %rax, %xmm0]) |
4765 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ, | |
4766 | [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`], | |
4767 | [Define if your assembler supports interunit movq mnemonic.]) | |
fe04878d | 4768 | |
5dcfdccd | 4769 | gcc_GAS_CHECK_FEATURE([hle prefixes], |
e0b6d0b3 | 4770 | gcc_cv_as_ix86_hle,, |
54af4523 | 4771 | [lock xacquire cmpxchg %esi, (%ecx)],, |
5dcfdccd KY |
4772 | [AC_DEFINE(HAVE_AS_IX86_HLE, 1, |
4773 | [Define if your assembler supports HLE prefixes.])]) | |
4774 | ||
afd2c302 | 4775 | gcc_GAS_CHECK_FEATURE([swap suffix], |
e0b6d0b3 | 4776 | gcc_cv_as_ix86_swap,, |
afd2c302 SD |
4777 | [movl.s %esp, %ebp],, |
4778 | [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, | |
4779 | [Define if your assembler supports the swap suffix.])]) | |
4780 | ||
68b92f78 | 4781 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
e0b6d0b3 | 4782 | gcc_cv_as_ix86_diff_sect_delta,, |
68b92f78 RS |
4783 | [.section .rodata |
4784 | .L1: | |
4785 | .long .L2-.L1 | |
4786 | .long .L3-.L1 | |
4787 | .text | |
4788 | .L3: nop | |
4789 | .L2: nop],, | |
4790 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
4791 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
4792 | ||
2433310d | 4793 | gcc_GAS_CHECK_FEATURE([rep and lock prefix], |
e0b6d0b3 | 4794 | gcc_cv_as_ix86_rep_lock_prefix,, |
2433310d | 4795 | [rep movsl |
43283548 UB |
4796 | rep ret |
4797 | rep nop | |
4798 | rep bsf %ecx, %eax | |
4799 | rep bsr %ecx, %eax | |
4bade865 | 4800 | lock addl %edi, (%eax,%esi) |
7085bfb6 UB |
4801 | lock orl $0, (%esp)],, |
4802 | [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1, | |
4803 | [Define if the assembler supports 'rep <insn>, lock <insn>'.])]) | |
2433310d | 4804 | |
88f7c49a | 4805 | gcc_GAS_CHECK_FEATURE([ud2 mnemonic], |
e0b6d0b3 | 4806 | gcc_cv_as_ix86_ud2,, |
88f7c49a RM |
4807 | [ud2],, |
4808 | [AC_DEFINE(HAVE_AS_IX86_UD2, 1, | |
4809 | [Define if your assembler supports the 'ud2' mnemonic.])]) | |
4810 | ||
e1ebd31d UB |
4811 | # Enforce 32-bit output with gas and gld. |
4812 | if test x$gas = xyes; then | |
4813 | as_ix86_gas_32_opt="--32" | |
4814 | fi | |
4815 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4816 | if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then | |
4817 | ld_ix86_gld_32_opt="-melf_i386_sol2" | |
4818 | else | |
4819 | ld_ix86_gld_32_opt="-melf_i386" | |
4820 | fi | |
4821 | fi | |
4822 | ||
8950516e | 4823 | gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc], |
e0b6d0b3 | 4824 | gcc_cv_as_ix86_tlsgdplt, |
e1ebd31d | 4825 | [$as_ix86_gas_32_opt], |
0f24748c RO |
4826 | [call tls_gd@tlsgdplt], |
4827 | [if test x$gcc_cv_ld != x \ | |
e1ebd31d | 4828 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4829 | gcc_cv_as_ix86_tlsgdplt=yes |
4830 | fi | |
4831 | rm -f conftest], | |
8950516e | 4832 | [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1, |
0f24748c | 4833 | [Define if your assembler and linker support @tlsgdplt.])]) |
8950516e | 4834 | |
040c446d RO |
4835 | conftest_s=' |
4836 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4837 | tls_ld: | |
4838 | .section .text,"ax",@progbits | |
4839 | call tls_ld@tlsldmplt' | |
e1ebd31d | 4840 | |
8950516e | 4841 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc], |
e0b6d0b3 | 4842 | gcc_cv_as_ix86_tlsldmplt, |
e1ebd31d | 4843 | [$as_ix86_gas_32_opt], |
040c446d | 4844 | [$conftest_s], |
0f24748c | 4845 | [if test x$gcc_cv_ld != x \ |
e1ebd31d | 4846 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4847 | gcc_cv_as_ix86_tlsldmplt=yes |
4848 | fi | |
caa16d41 RO |
4849 | rm -f conftest]) |
4850 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT, | |
4851 | [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`], | |
4852 | [Define to 1 if your assembler and linker support @tlsldmplt.]) | |
4853 | ||
caa16d41 RO |
4854 | conftest_s=' |
4855 | .section .text,"ax",@progbits | |
4856 | .globl _start | |
4857 | .type _start, @function | |
4858 | _start: | |
4859 | leal value@tlsldm(%ebx), %eax | |
4860 | call ___tls_get_addr@plt | |
4861 | ||
4862 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4863 | .type value, @object | |
4864 | value:' | |
4865 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], | |
e0b6d0b3 | 4866 | gcc_cv_as_ix86_tlsldm, |
49677530 | 4867 | [$as_ix86_gas_32_opt], |
caa16d41 RO |
4868 | [$conftest_s], |
4869 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
49677530 | 4870 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then |
caa16d41 RO |
4871 | if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ |
4872 | || dis conftest 2>/dev/null | grep nop > /dev/null; then | |
4873 | gcc_cv_as_ix86_tlsldm=yes | |
4874 | fi | |
4875 | fi | |
4876 | rm -f conftest]) | |
4877 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM, | |
4878 | [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], | |
4879 | [Define to 1 if your assembler and linker support @tlsldm.]) | |
8950516e | 4880 | |
c0597759 L |
4881 | conftest_s=' |
4882 | .data | |
4883 | bar: | |
4884 | .byte 1 | |
4885 | .text | |
4886 | .global _start | |
4887 | _start: | |
4888 | cmpl $0, bar@GOT | |
4889 | jmp *_start@GOT' | |
4890 | gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], | |
e0b6d0b3 | 4891 | gcc_cv_as_ix86_got32x, |
49677530 | 4892 | [$as_ix86_gas_32_opt], |
c0597759 L |
4893 | [$conftest_s], |
4894 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4895 | && test x$gcc_cv_readelf != x \ | |
4896 | && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ | |
4897 | | grep R_386_GOT32X > /dev/null 2>&1 \ | |
49677530 | 4898 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then |
c0597759 L |
4899 | if $gcc_cv_objdump -dw conftest 2>&1 \ |
4900 | | grep 0xffffff > /dev/null 2>&1; then | |
4901 | gcc_cv_as_ix86_got32x=no | |
4902 | else | |
4903 | gcc_cv_as_ix86_got32x=yes | |
4904 | fi | |
4905 | fi | |
4906 | rm -f conftest]) | |
4907 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, | |
4908 | [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], | |
4909 | [Define 0/1 if your assembler and linker support @GOT.]) | |
e1ebd31d UB |
4910 | |
4911 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
e0b6d0b3 | 4912 | gcc_cv_as_ix86_gotoff_in_data, |
e1ebd31d UB |
4913 | [$as_ix86_gas_32_opt], |
4914 | [ .text | |
4915 | .L0: | |
4916 | nop | |
4917 | .data | |
4918 | .long .L0@GOTOFF]) | |
4919 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
4920 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
4921 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
4922 | ||
de86ff8f L |
4923 | conftest_s=' |
4924 | .section .text,"ax",@progbits | |
4925 | .globl _start | |
4926 | .type _start, @function | |
4927 | _start: | |
4928 | leal ld@tlsldm(%ecx), %eax | |
4929 | call *___tls_get_addr@GOT(%ecx) | |
4930 | leal gd@tlsgd(%ecx), %eax | |
4931 | call *___tls_get_addr@GOT(%ecx) | |
4932 | ||
4933 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4934 | .type ld, @object | |
4935 | ld: | |
4936 | .byte 0 | |
4937 | .globl gd | |
4938 | .type gd, @object | |
4939 | gd: | |
4940 | .byte 0' | |
4941 | gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT], | |
e0b6d0b3 | 4942 | gcc_cv_as_ix86_tls_get_addr_via_got, |
de86ff8f L |
4943 | [$as_ix86_gas_32_opt], |
4944 | [$conftest_s], | |
4945 | [if test x$gcc_cv_ld != x \ | |
4946 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then | |
4947 | gcc_cv_as_ix86_tls_get_addr_via_got=yes | |
4948 | fi | |
4949 | rm -f conftest]) | |
4950 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLS_GET_ADDR_GOT, | |
4951 | [`if test x"$gcc_cv_as_ix86_tls_get_addr_via_got" = xyes; then echo 1; else echo 0; fi`], | |
4952 | [Define 0/1 if your assembler and linker support calling ___tls_get_addr via GOT.]) | |
1cb36a98 | 4953 | ;; |
ef1ecf87 RH |
4954 | |
4955 | ia64*-*-*) | |
8ada417f | 4956 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
e0b6d0b3 | 4957 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs,, |
cfa9ee99 | 4958 | [ .text |
ef1ecf87 RH |
4959 | addl r15 = @ltoffx(x#), gp |
4960 | ;; | |
d8b3b4f4 JM |
4961 | ld8.mov r16 = [[r15]], x# |
4962 | ],, | |
8ada417f ZW |
4963 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
4964 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
4965 | ||
ef1ecf87 | 4966 | ;; |
8ada417f | 4967 | |
2c4a9cff | 4968 | powerpc*-*-*) |
4b7a5264 | 4969 | |
8ada417f | 4970 | case $target in |
8af4d362 PB |
4971 | *-*-darwin*) |
4972 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
e0b6d0b3 | 4973 | gcc_cv_as_machine_directive,, |
8af4d362 PB |
4974 | [ .machine ppc7400]) |
4975 | if test x$gcc_cv_as_machine_directive != xyes; then | |
4976 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
aeebd94c | 4977 | echo you can get it from: https://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 |
8af4d362 PB |
4978 | test x$build = x$target && exit 1 |
4979 | fi | |
4b7a5264 DE |
4980 | ;; |
4981 | esac | |
4982 | ||
4983 | case $target in | |
4984 | *-*-aix*) conftest_s=' .machine "pwr5" | |
4985 | .csect .text[[PR]] | |
4986 | mfcr 3,128';; | |
4987 | *-*-darwin*) conftest_s=' .text | |
6b37db3c | 4988 | mfcr r3,128';; |
4c67db14 | 4989 | *) conftest_s=' .machine power4 |
d2ab3e37 | 4990 | .text |
6b37db3c | 4991 | mfcr 3,128';; |
8ada417f | 4992 | esac |
8ada417f ZW |
4993 | |
4994 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
e0b6d0b3 | 4995 | gcc_cv_as_powerpc_mfcrf,, |
8ada417f ZW |
4996 | [$conftest_s],, |
4997 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
4998 | [Define if your assembler supports mfcr field.])]) | |
432218ba | 4999 | |
7f970b70 AM |
5000 | case $target in |
5001 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
5002 | LCF..0: | |
5003 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
5004 | *-*-darwin*) | |
5005 | conftest_s=' .text | |
5006 | LCF0: | |
5007 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
5008 | *) conftest_s=' .text | |
5009 | .LCF0: | |
5010 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
5011 | esac | |
5012 | ||
695d8830 | 5013 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
e0b6d0b3 | 5014 | gcc_cv_as_powerpc_rel16, -a32, |
695d8830 AS |
5015 | [$conftest_s],, |
5016 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
5017 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
5018 | ||
d40c9e33 PB |
5019 | case $target in |
5020 | *-*-aix*) conftest_s=' .machine "pwr7" | |
5021 | .csect .text[[PR]] | |
5022 | lxvd2x 1,2,3';; | |
5023 | *) conftest_s=' .machine power7 | |
5024 | .text | |
5025 | lxvd2x 1,2,3';; | |
5026 | esac | |
5027 | ||
5028 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
e0b6d0b3 | 5029 | gcc_cv_as_powerpc_vsx, -a32, |
d40c9e33 PB |
5030 | [$conftest_s],, |
5031 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
5032 | [Define if your assembler supports VSX instructions.])]) | |
5033 | ||
e51917ae | 5034 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
e0b6d0b3 | 5035 | gcc_cv_as_powerpc_gnu_attribute,, |
e51917ae JM |
5036 | [.gnu_attribute 4,1],, |
5037 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
5038 | [Define if your assembler supports .gnu_attribute.])]) | |
9752c4ad | 5039 | |
157bb85d | 5040 | gcc_GAS_CHECK_FEATURE([prologue entry point marker support], |
e0b6d0b3 | 5041 | gcc_cv_as_powerpc_entry_markers,-a64 --fatal-warnings, |
157bb85d UW |
5042 | [ .reloc .,R_PPC64_ENTRY; nop],, |
5043 | [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1, | |
5044 | [Define if your assembler supports the R_PPC64_ENTRY relocation.])]) | |
5045 | ||
3f79c0ad | 5046 | gcc_GAS_CHECK_FEATURE([plt sequence marker support], |
e0b6d0b3 | 5047 | gcc_cv_as_powerpc_pltseq_markers,-a32 --fatal-warnings, |
3f79c0ad AM |
5048 | [ .reloc .,R_PPC_PLTSEQ; nop],, |
5049 | [AC_DEFINE(HAVE_AS_PLTSEQ, 1, | |
5050 | [Define if your assembler supports R_PPC*_PLTSEQ relocations.])]) | |
5051 | ||
636cf8b1 RS |
5052 | case $target in |
5053 | *-*-aix*) | |
a52f938b | 5054 | gcc_GAS_CHECK_FEATURE([AIX .ref support], |
e0b6d0b3 | 5055 | gcc_cv_as_aix_ref,, |
636cf8b1 RS |
5056 | [ .csect stuff[[rw]] |
5057 | stuff: | |
5058 | .long 1 | |
5059 | .extern sym | |
5060 | .ref sym | |
5061 | ],, | |
5062 | [AC_DEFINE(HAVE_AS_REF, 1, | |
5063 | [Define if your assembler supports .ref])]) | |
53b5ce19 | 5064 | |
a52f938b | 5065 | gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support], |
e0b6d0b3 | 5066 | gcc_cv_as_aix_dwloc,, |
a52f938b DE |
5067 | [ .dwsect 0xA0000 |
5068 | Lframe..0: | |
eb657a49 | 5069 | .vbyte 4,Lframe..0 |
51fbbb92 DE |
5070 | ],, |
5071 | [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1, | |
a52f938b | 5072 | [Define if your assembler supports AIX debug frame section label reference.])]) |
51fbbb92 DE |
5073 | ;; |
5074 | esac | |
5075 | ;; | |
5076 | ||
8ada417f ZW |
5077 | mips*-*-*) |
5078 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
e0b6d0b3 | 5079 | gcc_cv_as_mips_explicit_relocs,, |
8ada417f ZW |
5080 | [ lw $4,%gp_rel(foo)($4)],, |
5081 | [if test x$target_cpu_default = x | |
5082 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
5083 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
5084 | fi]) | |
51fbbb92 | 5085 | |
4551169f | 5086 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
e0b6d0b3 | 5087 | gcc_cv_as_mips_no_shared,[-mno-shared], [nop],, |
4551169f RS |
5088 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, |
5089 | [Define if the assembler understands -mno-shared.])]) | |
dcb957d9 JM |
5090 | |
5091 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
e0b6d0b3 | 5092 | gcc_cv_as_mips_gnu_attribute,, |
dcb957d9 JM |
5093 | [.gnu_attribute 4,1],, |
5094 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
5095 | [Define if your assembler supports .gnu_attribute.])]) | |
a44380d2 | 5096 | |
050af144 | 5097 | gcc_GAS_CHECK_FEATURE([.module support], |
e0b6d0b3 | 5098 | gcc_cv_as_mips_dot_module,[-32], |
a871c139 MF |
5099 | [.module mips2 |
5100 | .module fp=xx],, | |
050af144 MF |
5101 | [AC_DEFINE(HAVE_AS_DOT_MODULE, 1, |
5102 | [Define if your assembler supports .module.])]) | |
5103 | if test x$gcc_cv_as_mips_dot_module = xno \ | |
5104 | && test x$with_fp_32 != x; then | |
5105 | AC_MSG_ERROR( | |
5106 | [Requesting --with-fp-32= requires assembler support for .module.]) | |
5107 | fi | |
5108 | ||
22c4c869 | 5109 | gcc_GAS_CHECK_FEATURE([.micromips support], |
e0b6d0b3 | 5110 | gcc_cv_as_micromips_support,[--fatal-warnings], |
22c4c869 CM |
5111 | [.set micromips],, |
5112 | [AC_DEFINE(HAVE_GAS_MICROMIPS, 1, | |
5113 | [Define if your assembler supports the .set micromips directive])]) | |
5114 | ||
a44380d2 | 5115 | gcc_GAS_CHECK_FEATURE([.dtprelword support], |
e0b6d0b3 | 5116 | gcc_cv_as_mips_dtprelword,, |
a44380d2 JM |
5117 | [.section .tdata,"awT",@progbits |
5118 | x: | |
5119 | .word 2 | |
5120 | .text | |
5121 | .dtprelword x+0x8000],, | |
5122 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
5123 | [Define if your assembler supports .dtprelword.])]) | |
b53da244 | 5124 | |
293b77b0 | 5125 | gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support], |
e0b6d0b3 | 5126 | gcc_cv_as_mips_dspr1_mult,, |
293b77b0 CF |
5127 | [ .set mips32r2 |
5128 | .set nodspr2 | |
5129 | .set dsp | |
5130 | madd $ac3,$4,$5 | |
5131 | maddu $ac3,$4,$5 | |
5132 | msub $ac3,$4,$5 | |
5133 | msubu $ac3,$4,$5 | |
5134 | mult $ac3,$4,$5 | |
5135 | multu $ac3,$4,$5],, | |
5136 | [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1, | |
5137 | [Define if your assembler supports DSPR1 mult.])]) | |
5138 | ||
b53da244 AN |
5139 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) |
5140 | gcc_cv_as_ld_jalr_reloc=no | |
5141 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
5142 | if test $in_tree_ld = yes ; then | |
5143 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5144 | && test $in_tree_ld_is_elf = yes; then | |
5145 | gcc_cv_as_ld_jalr_reloc=yes | |
5146 | fi | |
5147 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
5148 | echo ' .ent x' > conftest.s | |
1e1f96b5 CM |
5149 | echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s |
5150 | echo ' lw $25,%call16(y)($28)' >> conftest.s | |
b53da244 AN |
5151 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s |
5152 | echo '1: jalr $25' >> conftest.s | |
5153 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
5154 | echo '1: jalr $25' >> conftest.s | |
5155 | echo ' .end x' >> conftest.s | |
5156 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
5157 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
bc492e47 RO |
5158 | if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \ |
5159 | && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then | |
b53da244 AN |
5160 | gcc_cv_as_ld_jalr_reloc=yes |
5161 | fi | |
5162 | fi | |
5163 | rm -f conftest.* | |
5164 | fi | |
5165 | fi | |
5166 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
5167 | if test x$target_cpu_default = x; then | |
5168 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
5169 | else | |
5170 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
5171 | fi | |
5172 | fi | |
5173 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
49576e25 RS |
5174 | |
5175 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
5176 | [gcc_cv_ld_mips_personality_relaxation], | |
5177 | [gcc_cv_ld_mips_personality_relaxation=no | |
5178 | if test $in_tree_ld = yes ; then | |
5179 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
5180 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
5181 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
5182 | gcc_cv_ld_mips_personality_relaxation=yes | |
5183 | fi | |
5184 | elif test x$gcc_cv_as != x \ | |
5185 | -a x$gcc_cv_ld != x \ | |
5186 | -a x$gcc_cv_readelf != x ; then | |
5187 | cat > conftest.s <<EOF | |
5188 | .cfi_startproc | |
5189 | .cfi_personality 0x80,indirect_ptr | |
5190 | .ent test | |
5191 | test: | |
5192 | nop | |
5193 | .end test | |
5194 | .cfi_endproc | |
5195 | ||
5196 | .section .data,"aw",@progbits | |
5197 | indirect_ptr: | |
5198 | .dc.a personality | |
5199 | EOF | |
5200 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
5201 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
5202 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
5203 | | grep TEXTREL > /dev/null 2>&1; then | |
5204 | : | |
5205 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
5206 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
5207 | : | |
5208 | else | |
5209 | gcc_cv_ld_mips_personality_relaxation=yes | |
5210 | fi | |
5211 | fi | |
5212 | fi | |
5213 | rm -f conftest.s conftest.o conftest]) | |
5214 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
5215 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
5216 | [Define if your linker can relax absolute .eh_frame personality | |
5217 | pointers into PC-relative form.]) | |
5218 | fi | |
ff3f3951 MR |
5219 | |
5220 | gcc_GAS_CHECK_FEATURE([-mnan= support], | |
e0b6d0b3 | 5221 | gcc_cv_as_mips_nan, |
ff3f3951 MR |
5222 | [-mnan=2008],,, |
5223 | [AC_DEFINE(HAVE_AS_NAN, 1, | |
5224 | [Define if the assembler understands -mnan=.])]) | |
5225 | if test x$gcc_cv_as_mips_nan = xno \ | |
5226 | && test x$with_nan != x; then | |
5227 | AC_MSG_ERROR( | |
5228 | [Requesting --with-nan= requires assembler support for -mnan=]) | |
5229 | fi | |
dbad5e72 | 5230 | ;; |
8682b1a5 JL |
5231 | msp430-*-*) |
5232 | # Earlier GAS versions generically support .gnu_attribute, but the | |
5233 | # msp430 assembler will not do anything with it. | |
5234 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
e0b6d0b3 | 5235 | gcc_cv_as_msp430_gnu_attribute,, |
8682b1a5 JL |
5236 | [.gnu_attribute 4,1],, |
5237 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
5238 | [Define if your assembler supports .gnu_attribute.])]) | |
5239 | gcc_GAS_CHECK_FEATURE([.mspabi_attribute support], | |
e0b6d0b3 | 5240 | gcc_cv_as_msp430_mspabi_attribute,, |
b75863a8 | 5241 | [.mspabi_attribute 4,2],, |
8682b1a5 JL |
5242 | [AC_DEFINE(HAVE_AS_MSPABI_ATTRIBUTE, 1, |
5243 | [Define if your assembler supports .mspabi_attribute.])]) | |
02afb6a9 JL |
5244 | if test x$enable_newlib_nano_formatted_io = xyes; then |
5245 | AC_DEFINE(HAVE_NEWLIB_NANO_FORMATTED_IO, 1, [Define if GCC has been | |
5246 | configured with --enable-newlib-nano-formatted-io.]) | |
5247 | fi | |
8682b1a5 | 5248 | ;; |
2d33dcfe SL |
5249 | nios2-*-*) |
5250 | # Versions 2.33 and earlier lacked support for the %gotoff relocation | |
5251 | # syntax that is documented in the ABI specification. | |
5252 | gcc_GAS_CHECK_FEATURE([support for %gotoff relocations in constant data], | |
e0b6d0b3 | 5253 | gcc_cv_as_nios2_gotoff_relocation,, |
2d33dcfe SL |
5254 | [ .extern foo |
5255 | .data | |
5256 | .long %gotoff(foo)],, | |
5257 | [AC_DEFINE(HAVE_AS_NIOS2_GOTOFF_RELOCATION, 1, | |
5258 | [Define if your assembler supports %gotoff relocation syntax.])]) | |
5259 | ;; | |
8e966210 KC |
5260 | riscv*-*-*) |
5261 | gcc_GAS_CHECK_FEATURE([.attribute support], | |
e0b6d0b3 | 5262 | gcc_cv_as_riscv_attribute,, |
8e966210 KC |
5263 | [.attribute stack_align,4],, |
5264 | [AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1, | |
5265 | [Define if your assembler supports .attribute.])]) | |
4b815282 | 5266 | gcc_GAS_CHECK_FEATURE([-misa-spec= support], |
e0b6d0b3 | 5267 | gcc_cv_as_riscv_isa_spec, |
4b815282 KC |
5268 | [-misa-spec=2.2],,, |
5269 | [AC_DEFINE(HAVE_AS_MISA_SPEC, 1, | |
5270 | [Define if the assembler understands -misa-spec=.])]) | |
5271 | gcc_GAS_CHECK_FEATURE([-march=rv32i_zifencei support], | |
e0b6d0b3 | 5272 | gcc_cv_as_riscv_march_zifencei, |
4b815282 KC |
5273 | [-march=rv32i_zifencei],,, |
5274 | [AC_DEFINE(HAVE_AS_MARCH_ZIFENCEI, 1, | |
5275 | [Define if the assembler understands -march=rv*_zifencei.])]) | |
8e966210 | 5276 | ;; |
45901378 AK |
5277 | s390*-*-*) |
5278 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
e0b6d0b3 | 5279 | gcc_cv_as_s390_gnu_attribute,, |
45901378 AK |
5280 | [.gnu_attribute 8,1],, |
5281 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
5282 | [Define if your assembler supports .gnu_attribute.])]) | |
ec47b086 | 5283 | gcc_GAS_CHECK_FEATURE([.machine and .machinemode support], |
e0b6d0b3 | 5284 | gcc_cv_as_s390_machine_machinemode,, |
ec47b086 DV |
5285 | [ .machinemode push |
5286 | .machinemode pop | |
5287 | .machine push | |
5288 | .machine pop],, | |
5289 | [AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1, | |
5290 | [Define if your assembler supports .machine and .machinemode.])]) | |
5291 | gcc_GAS_CHECK_FEATURE([architecture modifiers support], | |
e0b6d0b3 | 5292 | gcc_cv_as_s390_architecture_modifiers,, |
ec47b086 DV |
5293 | [ .machine z13+vx ],, |
5294 | [AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1, | |
5295 | [Define if your assembler supports architecture modifiers.])]) | |
b8923037 | 5296 | gcc_GAS_CHECK_FEATURE([vector load/store alignment hints], |
e0b6d0b3 | 5297 | gcc_cv_as_s390_vector_loadstore_alignment_hints,, |
b8923037 AK |
5298 | [ vl %v24,0(%r15),3 ],, |
5299 | [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS, 1, | |
5300 | [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument.])]) | |
929fd91b | 5301 | gcc_GAS_CHECK_FEATURE([vector load/store alignment hints on z13], |
e0b6d0b3 | 5302 | gcc_cv_as_s390_vector_loadstore_alignment_hints_on_z13, [-mzarch -march=z13], |
929fd91b SSF |
5303 | [ vl %v24,0(%r15),3 ],, |
5304 | [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS_ON_Z13, 1, | |
5305 | [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument on z13.])]) | |
b8923037 | 5306 | |
45901378 | 5307 | ;; |
dbad5e72 SE |
5308 | esac |
5309 | ||
5310 | # Mips and HP-UX need the GNU assembler. | |
5311 | # Linux on IA64 might be able to use the Intel assembler. | |
8ada417f | 5312 | |
dbad5e72 SE |
5313 | case "$target" in |
5314 | mips*-*-* | *-*-hpux* ) | |
82563d35 RS |
5315 | if test x$gas_flag = xyes \ |
5316 | || test x"$host" != x"$build" \ | |
5317 | || test ! -x "$gcc_cv_as" \ | |
5318 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
5319 | : | |
5320 | else | |
5321 | echo "*** This configuration requires the GNU assembler" >&2 | |
5322 | exit 1 | |
5323 | fi | |
8ada417f ZW |
5324 | ;; |
5325 | esac | |
dbad5e72 | 5326 | |
cfa1f822 MV |
5327 | # This tests if the assembler supports two registers for global_load functions |
5328 | # (like in LLVM versions <12) or one register (like in LLVM 12). | |
5329 | case "$target" in | |
5330 | amdgcn-* | gcn-*) | |
5331 | AC_MSG_CHECKING(assembler fix for global_load functions) | |
5332 | gcc_cv_as_gcn_global_load_fixed=yes | |
5333 | if test x$gcc_cv_as != x; then | |
5334 | cat > conftest.s <<EOF | |
5335 | global_store_dwordx2 v[[1:2]], v[[4:5]], s[[14:15]] | |
5336 | EOF | |
5337 | if $gcc_cv_as -triple=amdgcn--amdhsa -filetype=obj -mcpu=gfx900 -o conftest.o conftest.s > /dev/null 2>&1; then | |
5338 | gcc_cv_as_gcn_global_load_fixed=no | |
5339 | fi | |
5340 | rm -f conftest.s conftest.o conftest | |
5341 | fi | |
5342 | global_load_fixed=`if test x$gcc_cv_as_gcn_global_load_fixed = xyes; then echo 1; else echo 0; fi` | |
5343 | AC_DEFINE_UNQUOTED(HAVE_GCN_ASM_GLOBAL_LOAD_FIXED, $global_load_fixed, | |
5344 | [Define if your assembler has fixed global_load functions.]) | |
5345 | AC_MSG_RESULT($gcc_cv_as_gcn_global_load_fixed) | |
5346 | ;; | |
5347 | esac | |
5348 | ||
1af16666 AS |
5349 | case "$target" in |
5350 | amdgcn-* | gcn-*) | |
6ca03ca3 AS |
5351 | # Test the LLVM assembler syntax dialect; they have made a number of |
5352 | # changes between LLVM 12 & 13 without any backward compatibility. | |
5353 | gcc_GAS_CHECK_FEATURE([assembler amdgcn_target v2/3 syntax], | |
5354 | gcc_cv_as_gcn_asm_v3_syntax, | |
5355 | [-triple=amdgcn--amdhsa -mcpu=gfx906 -mattr=+xnack], | |
5356 | [.amdgcn_target "amdgcn-unknown-amdhsa--gfx906+xnack"],, | |
5357 | [AC_DEFINE(HAVE_GCN_ASM_V3_SYNTAX, 1, | |
5358 | [Define if your assembler expects amdgcn_target gfx908+xnack syntax.])]) | |
5359 | gcc_GAS_CHECK_FEATURE([assembler amdgcn_target v4 syntax], | |
5360 | gcc_cv_as_gcn_asm_v4_syntax, | |
5361 | [-triple=amdgcn--amdhsa -mcpu=gfx908 -mattr=+xnack], | |
5362 | [.amdgcn_target "amdgcn-unknown-amdhsa--gfx908:xnack+"],, | |
5363 | [AC_DEFINE(HAVE_GCN_ASM_V4_SYNTAX, 1, | |
5364 | [Define if your assembler expects amdgcn_target gfx908:xnack+ syntax.])]) | |
5365 | ||
5366 | # Some attribute names changed in the move to v4 ... | |
5367 | if test $gcc_cv_as_gcn_asm_v3_syntax = yes; then | |
5368 | sramopt="+sram-ecc" | |
5369 | sramattr="+sram-ecc" | |
5370 | xnackattr="+xnack" | |
5371 | elif test $gcc_cv_as_gcn_asm_v4_syntax = yes; then | |
5372 | sramopt="+sramecc" | |
5373 | sramattr=":sramecc+" | |
5374 | xnackattr=":xnack+" | |
5375 | else | |
5376 | AC_MSG_ERROR([Unrecognised assembler version]) | |
5377 | fi | |
5378 | ||
5379 | # Test whether the LLVM assembler accepts -mattr=+xnack without any | |
5380 | # diagnostic. LLVM 9 & 10 accept the option whether it makes sense or not, | |
5381 | # LLVM 12+ throws a warning for GPUs without support. | |
5382 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+xnack for fiji], | |
5383 | gcc_cv_as_gcn_xnack_ecc_fiji, | |
5384 | [-triple=amdgcn--amdhsa -mcpu=fiji -mattr=+xnack 2>conftest.err], [], | |
5385 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5386 | || gcc_cv_as_gcn_xnack_ecc_fiji=yes], | |
5387 | [AC_DEFINE(HAVE_GCN_XNACK_FIJI, 1, | |
5388 | [Define if your assembler allows -mattr=+xnack for fiji.])]) | |
5389 | rm -f conftest.err | |
5390 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+xnack for gfx900], | |
5391 | gcc_cv_as_gcn_xnack_ecc_gfx900, | |
5392 | [-triple=amdgcn--amdhsa -mcpu=gfx900 -mattr=+xnack 2>conftest.err], [], | |
5393 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5394 | || gcc_cv_as_gcn_xnack_ecc_gfx900=yes], | |
5395 | [AC_DEFINE(HAVE_GCN_XNACK_GFX900, 1, | |
5396 | [Define if your assembler allows -mattr=+xnack for gfx900.])]) | |
5397 | rm -f conftest.err | |
5398 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+xnack for gfx906], | |
5399 | gcc_cv_as_gcn_xnack_ecc_gfx906, | |
5400 | [-triple=amdgcn--amdhsa -mcpu=gfx906 -mattr=+xnack 2>conftest.err], [], | |
5401 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5402 | || gcc_cv_as_gcn_xnack_ecc_gfx906=yes], | |
5403 | [AC_DEFINE(HAVE_GCN_XNACK_GFX906, 1, | |
5404 | [Define if your assembler allows -mattr=+xnack for gfx906.])]) | |
5405 | rm -f conftest.err | |
5406 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+xnack for gfx908], | |
5407 | gcc_cv_as_gcn_xnack_ecc_gfx908, | |
5408 | [-triple=amdgcn--amdhsa -mcpu=gfx908 -mattr=+xnack 2>conftest.err], [], | |
5409 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5410 | || gcc_cv_as_gcn_xnack_ecc_gfx908=yes], | |
5411 | [AC_DEFINE(HAVE_GCN_XNACK_GFX908, 1, | |
5412 | [Define if your assembler allows -mattr=+xnack for gfx908.])]) | |
5413 | rm -f conftest.err | |
5414 | ||
5415 | # Test whether the LLVM assembler accepts -mattr=+sramecc without any | |
5416 | # diagnostic. LLVM 9 & 10 accept the option whether it makes sense or not, | |
5417 | # (some?) LLVM 12 rejects it for all GPUs, and LLVM13 throws a warning | |
5418 | # for GPUs without support. | |
5419 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=$sramopt for fiji], | |
e5d9873f | 5420 | gcc_cv_as_gcn_sram_ecc_fiji, |
6ca03ca3 AS |
5421 | [-triple=amdgcn--amdhsa -mcpu=fiji -mattr=$sramopt 2>conftest.err], [], |
5422 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5423 | || gcc_cv_as_gcn_sram_ecc_fiji=yes], | |
1af16666 | 5424 | [AC_DEFINE(HAVE_GCN_SRAM_ECC_FIJI, 1, |
6ca03ca3 AS |
5425 | [Define if your assembler allows -mattr=+sramecc for fiji.])]) |
5426 | rm -f conftest.err | |
5427 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=$sramopt for gfx900], | |
e5d9873f | 5428 | gcc_cv_as_gcn_sram_ecc_gfx900, |
6ca03ca3 AS |
5429 | [-triple=amdgcn--amdhsa -mcpu=gfx900 -mattr=$sramopt 2>conftest.err], [], |
5430 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5431 | || gcc_cv_as_gcn_sram_ecc_gfx900=yes], | |
1af16666 | 5432 | [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX900, 1, |
6ca03ca3 AS |
5433 | [Define if your assembler allows -mattr=+sramecc for gfx900.])]) |
5434 | rm -f conftest.err | |
5435 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=$sramopt for gfx906], | |
e5d9873f | 5436 | gcc_cv_as_gcn_sram_ecc_gfx906, |
6ca03ca3 AS |
5437 | [-triple=amdgcn--amdhsa -mcpu=gfx906 -mattr=$sramopt 2>conftest.err], [], |
5438 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5439 | || gcc_cv_as_gcn_sram_ecc_gfx906=yes], | |
1af16666 | 5440 | [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX906, 1, |
6ca03ca3 AS |
5441 | [Define if your assembler allows -mattr=+sramecc for gfx906.])]) |
5442 | rm -f conftest.err | |
5443 | gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=$sramopt for gfx908], | |
e5d9873f | 5444 | gcc_cv_as_gcn_sram_ecc_gfx908, |
6ca03ca3 AS |
5445 | [-triple=amdgcn--amdhsa -mcpu=gfx908 -mattr=$sramopt 2>conftest.err], [], |
5446 | [grep "." conftest.err >&AS_MESSAGE_LOG_FD \ | |
5447 | || gcc_cv_as_gcn_sram_ecc_gfx908=yes], | |
1af16666 | 5448 | [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX908, 1, |
6ca03ca3 AS |
5449 | [Define if your assembler allows -mattr=+sramecc for gfx908.])]) |
5450 | rm -f conftest.err | |
1af16666 | 5451 | ;; |
4e7a92c0 RE |
5452 | arm*) |
5453 | gcc_GAS_CHECK_FEATURE([assembler for arm accepts context-specific architecture extensions], | |
5454 | gcc_cv_as_arm_option_extensions, | |
5455 | [-march=armv8.1-m.main+mve], | |
5456 | [.text | |
5457 | .thumb | |
5458 | .syntax unified | |
5459 | vmov.f32 s0, s1],, | |
5460 | [AC_DEFINE(HAVE_GAS_ARM_EXTENDED_ARCH, 1, | |
5461 | [Define if your Arm assembler permits context-specific feature extensions.])]) | |
1af16666 AS |
5462 | esac |
5463 | ||
9d147085 RH |
5464 | # ??? Not all targets support dwarf2 debug_line, even within a version |
5465 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
5466 | # info to the output file. So, as supported targets are added to gas 2.11, | |
5467 | # add some instruction here to (also) show we expect this might work. | |
5468 | # ??? Once 2.11 is released, probably need to add first known working | |
5469 | # version to the per-target configury. | |
7fa2619a | 5470 | case "$cpu_type" in |
56856b58 | 5471 | aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \ |
2f2aeda9 | 5472 | | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc \ |
7c22e690 | 5473 | | tilegx | tilepro | visium | xstormy16 | xtensa) |
9d147085 RH |
5474 | insn="nop" |
5475 | ;; | |
7fa2619a | 5476 | ia64 | s390) |
9d147085 RH |
5477 | insn="nop 0" |
5478 | ;; | |
7fa2619a | 5479 | mmix) |
2853bc5a HPN |
5480 | insn="swym 0" |
5481 | ;; | |
8ada417f ZW |
5482 | esac |
5483 | if test x"$insn" != x; then | |
5484 | conftest_s="\ | |
5485 | .file 1 \"conftest.s\" | |
5486 | .loc 1 3 0 | |
5487 | $insn" | |
5488 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
1918f4b7 SB |
5489 | gcc_cv_as_dwarf2_debug_line,, |
5490 | [$conftest_s], | |
080a5bb0 EB |
5491 | [if test x$gcc_cv_objdump != x \ |
5492 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
5493 | | grep debug_line > /dev/null 2>&1; then | |
8ada417f | 5494 | gcc_cv_as_dwarf2_debug_line=yes |
f1b2727f IS |
5495 | elif test x$gcc_cv_otool != x \ |
5496 | && $gcc_cv_otool -l conftest.o 2> /dev/null \ | |
5497 | | grep debug_line > /dev/null 2>&1; then | |
5498 | gcc_cv_as_dwarf2_debug_line=yes | |
8ada417f ZW |
5499 | fi]) |
5500 | ||
5501 | # The .debug_line file table must be in the exact order that | |
5502 | # we specified the files, since these indices are also used | |
5503 | # by DW_AT_decl_file. Approximate this test by testing if | |
5504 | # the assembler bitches if the same index is assigned twice. | |
5505 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
e0b6d0b3 | 5506 | gcc_cv_as_dwarf2_file_buggy,, |
8ada417f ZW |
5507 | [ .file 1 "foo.s" |
5508 | .file 1 "bar.s"]) | |
5509 | ||
5510 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
5511 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
bd2b9f1e | 5512 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
8ada417f | 5513 | [Define if your assembler supports dwarf2 .file/.loc directives, |
eaec9b3d | 5514 | and preserves file table indices exactly as given.]) |
bd2b9f1e AO |
5515 | |
5516 | if test $gcc_cv_as_leb128 = yes; then | |
5517 | conftest_s="\ | |
5518 | .file 1 \"conftest.s\" | |
5519 | .loc 1 3 0 view .LVU1 | |
5520 | $insn | |
5521 | .data | |
5522 | .uleb128 .LVU1 | |
5523 | .uleb128 .LVU1 | |
5524 | " | |
5525 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support], | |
1918f4b7 SB |
5526 | gcc_cv_as_dwarf2_debug_view,, |
5527 | [$conftest_s],, | |
bd2b9f1e AO |
5528 | [AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1, |
5529 | [Define if your assembler supports views in dwarf2 .loc directives.])]) | |
5530 | fi | |
8ada417f ZW |
5531 | fi |
5532 | ||
5533 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
5534 | gcc_cv_as_gdwarf2_flag, | |
e0b6d0b3 | 5535 | [--gdwarf2], [$insn],, |
8ada417f ZW |
5536 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, |
5537 | [Define if your assembler supports the --gdwarf2 option.])]) | |
5538 | ||
6923255e JJ |
5539 | gcc_GAS_CHECK_FEATURE([--gdwarf-5 option], |
5540 | gcc_cv_as_gdwarf_5_flag, | |
e0b6d0b3 | 5541 | [--gdwarf-5], [$insn], |
aca12136 EB |
5542 | [if test x$gcc_cv_objdump != x \ |
5543 | && $gcc_cv_objdump -Wi conftest.o 2>&1 \ | |
fe5cb7f9 JJ |
5544 | | grep DW_TAG_compile_unit > /dev/null 2>&1; then |
5545 | gcc_cv_as_gdwarf_5_flag=yes; | |
5546 | fi],[AC_DEFINE(HAVE_AS_GDWARF_5_DEBUG_FLAG, 1, | |
6923255e JJ |
5547 | [Define if your assembler supports the --gdwarf-5 option.])]) |
5548 | ||
aca12136 EB |
5549 | case $target_os in |
5550 | win32 | pe | cygwin* | mingw32*) | |
5551 | section_flags=\"dr\" | |
5552 | function_type=".def foo; .scl 2; .type 32; .endef" | |
5553 | function_size="";; | |
5554 | *) | |
5555 | section_flags=\"\",%progbits | |
5556 | function_type=".type foo, %function" | |
5557 | function_size=".size foo, .-foo";; | |
5558 | esac | |
6923255e JJ |
5559 | dwarf4_debug_info_size=0x46 |
5560 | dwarf4_high_pc_form=7 | |
5561 | dwarf4_debug_aranges_size=0x2c | |
5562 | dwarf4_line_sz=9 | |
5563 | for dwarf4_addr_size in 8 4; do | |
5564 | conftest_s="\ | |
5565 | .file \"a.c\" | |
5566 | .text | |
5567 | .Ltext0: | |
5568 | .p2align 4 | |
5569 | .globl foo | |
aca12136 | 5570 | $function_type |
6923255e JJ |
5571 | foo: |
5572 | .LFB0: | |
5573 | .LM1: | |
5574 | $insn | |
5575 | .LM2: | |
5576 | .LFE0: | |
aca12136 | 5577 | $function_size |
6923255e | 5578 | .Letext0: |
aca12136 | 5579 | .section .debug_info,$section_flags |
6923255e JJ |
5580 | .Ldebug_info0: |
5581 | .4byte $dwarf4_debug_info_size | |
5582 | .2byte 0x4 | |
5583 | .4byte .Ldebug_abbrev0 | |
5584 | .byte 0x$dwarf4_addr_size | |
5585 | .byte 0x1 | |
5586 | .ascii \"GNU C17\\0\" | |
5587 | .byte 0xc | |
5588 | .ascii \"a.c\\0\" | |
5589 | .ascii \"/\\0\" | |
5590 | .${dwarf4_addr_size}byte .Ltext0 | |
5591 | .${dwarf4_addr_size}byte .Letext0-.Ltext0 | |
5592 | .4byte .Ldebug_line0 | |
5593 | .byte 0x2 | |
5594 | .ascii \"foo\\0\" | |
5595 | .byte 0x1 | |
5596 | .byte 0x2 | |
5597 | .byte 0x1 | |
5598 | .${dwarf4_addr_size}byte .LFB0 | |
5599 | .${dwarf4_addr_size}byte .LFE0-.LFB0 | |
5600 | .byte 0x1 | |
5601 | .byte 0x9c | |
5602 | .byte 0 | |
aca12136 | 5603 | .section .debug_abbrev,$section_flags |
6923255e JJ |
5604 | .Ldebug_abbrev0: |
5605 | .byte 0x1 | |
5606 | .byte 0x11 | |
5607 | .byte 0x1 | |
5608 | .byte 0x25 | |
5609 | .byte 0x8 | |
5610 | .byte 0x13 | |
5611 | .byte 0xb | |
5612 | .byte 0x3 | |
5613 | .byte 0x8 | |
5614 | .byte 0x1b | |
5615 | .byte 0x8 | |
5616 | .byte 0x11 | |
5617 | .byte 0x1 | |
5618 | .byte 0x12 | |
5619 | .byte 0x$dwarf4_high_pc_form | |
5620 | .byte 0x10 | |
5621 | .byte 0x17 | |
5622 | .byte 0 | |
5623 | .byte 0 | |
5624 | .byte 0x2 | |
5625 | .byte 0x2e | |
5626 | .byte 0 | |
5627 | .byte 0x3f | |
5628 | .byte 0x19 | |
5629 | .byte 0x3 | |
5630 | .byte 0x8 | |
5631 | .byte 0x3a | |
5632 | .byte 0xb | |
5633 | .byte 0x3b | |
5634 | .byte 0xb | |
5635 | .byte 0x39 | |
5636 | .byte 0xb | |
5637 | .byte 0x11 | |
5638 | .byte 0x1 | |
5639 | .byte 0x12 | |
5640 | .byte 0x$dwarf4_high_pc_form | |
5641 | .byte 0x40 | |
5642 | .byte 0x18 | |
5643 | .byte 0 | |
5644 | .byte 0 | |
5645 | .byte 0 | |
aca12136 | 5646 | .section .debug_aranges,$section_flags |
6923255e JJ |
5647 | .4byte $dwarf4_debug_aranges_size |
5648 | .2byte 0x2 | |
5649 | .4byte .Ldebug_info0 | |
5650 | .byte 0x8 | |
5651 | .byte 0 | |
5652 | .2byte 0 | |
5653 | .2byte 0 | |
5654 | .${dwarf4_addr_size}byte .Ltext0 | |
5655 | .${dwarf4_addr_size}byte .Letext0-.Ltext0 | |
5656 | .${dwarf4_addr_size}byte 0 | |
5657 | .${dwarf4_addr_size}byte 0 | |
aca12136 | 5658 | .section .debug_line,$section_flags |
6923255e JJ |
5659 | .Ldebug_line0: |
5660 | .4byte .LELT0-.LSLT0 | |
5661 | .LSLT0: | |
5662 | .2byte 0x4 | |
5663 | .4byte .LELTP0-.LASLTP0 | |
5664 | .LASLTP0: | |
5665 | .byte 0x1 | |
5666 | .byte 0x1 | |
5667 | .byte 0x1 | |
5668 | .byte 0xf6 | |
5669 | .byte 0xf2 | |
5670 | .byte 0xd | |
5671 | .byte 0 | |
5672 | .byte 0x1 | |
5673 | .byte 0x1 | |
5674 | .byte 0x1 | |
5675 | .byte 0x1 | |
5676 | .byte 0 | |
5677 | .byte 0 | |
5678 | .byte 0 | |
5679 | .byte 0x1 | |
5680 | .byte 0 | |
5681 | .byte 0 | |
5682 | .byte 0x1 | |
5683 | .byte 0 | |
5684 | .ascii \"a.c\\0\" | |
5685 | .byte 0 | |
5686 | .byte 0 | |
5687 | .byte 0 | |
5688 | .byte 0 | |
5689 | .LELTP0: | |
5690 | .byte 0 | |
5691 | .byte 0x$dwarf4_line_sz | |
5692 | .byte 0x2 | |
5693 | .${dwarf4_addr_size}byte .LM1 | |
5694 | .byte 0x18 | |
5695 | .byte 0x5 | |
5696 | .byte 0x1 | |
5697 | .byte 0 | |
5698 | .byte 0x$dwarf4_line_sz | |
5699 | .byte 0x2 | |
5700 | .${dwarf4_addr_size}byte .LM2 | |
5701 | .byte 0x1 | |
5702 | .byte 0x5 | |
5703 | .byte 0x1 | |
5704 | .byte 0 | |
5705 | .byte 0x$dwarf4_line_sz | |
5706 | .byte 0x2 | |
5707 | .${dwarf4_addr_size}byte .Letext0 | |
5708 | .byte 0 | |
5709 | .byte 0x1 | |
5710 | .byte 0x1 | |
5711 | .LELT0: | |
aca12136 | 5712 | .section .debug_str,$section_flags |
6923255e JJ |
5713 | .ident \"GCC\" |
5714 | " | |
5715 | dwarf4_success=no | |
5716 | if test $dwarf4_addr_size = 4; then | |
5717 | gcc_GAS_CHECK_FEATURE([assembly of compiler generated 32-bit .debug_line], | |
1918f4b7 SB |
5718 | gcc_cv_as_debug_line_32_flag,, |
5719 | [$conftest_s],, | |
1aeb7d7d | 5720 | [dwarf4_success=yes]) |
6923255e JJ |
5721 | else |
5722 | gcc_GAS_CHECK_FEATURE([assembly of compiler generated 64-bit .debug_line], | |
1918f4b7 SB |
5723 | gcc_cv_as_debug_line_64_flag,, |
5724 | [$conftest_s],, | |
6923255e JJ |
5725 | [dwarf4_success=yes]) |
5726 | fi | |
5727 | if test $dwarf4_success = yes; then | |
1aeb7d7d | 5728 | dwarf4_success=no |
6923255e JJ |
5729 | gcc_GAS_CHECK_FEATURE([--gdwarf-4 not refusing compiler generated .debug_line], |
5730 | gcc_cv_as_dwarf_4_debug_line_flag, | |
e0b6d0b3 | 5731 | [--gdwarf-4], [$conftest_s],, |
1aeb7d7d | 5732 | [dwarf4_success=yes]) |
6923255e JJ |
5733 | break |
5734 | fi | |
5735 | dwarf4_debug_info_size=0x36 | |
5736 | dwarf4_high_pc_form=6 | |
5737 | dwarf4_debug_aranges_size=0x1c | |
5738 | dwarf4_line_sz=5 | |
5739 | done | |
5740 | ||
1aeb7d7d L |
5741 | if test $dwarf4_success = yes; then |
5742 | conftest_s="\ | |
5743 | .file \"foo.c\" | |
5744 | .text | |
5745 | bar: | |
5746 | #APP | |
5747 | # 82 \"xxx.h\" 1 | |
5748 | $insn | |
5749 | # 0 \"\" 2 | |
5750 | #NO_APP | |
5751 | $insn | |
5752 | foo: | |
5753 | .file 1 \"foo.c\" | |
5754 | $insn | |
5755 | .file 2 \"foo.h\" | |
5756 | ret | |
5757 | " | |
5758 | dwarf4_success=no | |
5759 | gcc_GAS_CHECK_FEATURE([--gdwarf-4 with the APP marker], | |
e0b6d0b3 | 5760 | gcc_cv_as_dwarf_4_app_flag, |
1aeb7d7d L |
5761 | [--gdwarf-4], [$conftest_s],, [dwarf4_success=yes]) |
5762 | fi | |
5763 | ||
5764 | if test $dwarf4_success = yes; then | |
5765 | conftest_s="\ | |
5766 | .text | |
5767 | .globl foo | |
aca12136 | 5768 | $function_type |
1aeb7d7d L |
5769 | foo: |
5770 | $insn | |
aca12136 | 5771 | $function_size |
1aeb7d7d L |
5772 | .file 1 \"foo.c\" |
5773 | " | |
5774 | gcc_GAS_CHECK_FEATURE([working --gdwarf-4/--gdwarf-5 for all sources], | |
e0b6d0b3 | 5775 | gcc_cv_as_working_gdwarf_n_flag, |
1aeb7d7d L |
5776 | [--gdwarf-4], |
5777 | [$conftest_s], | |
5778 | [changequote(,)dnl | |
aca12136 EB |
5779 | if test x$gcc_cv_objdump != x \ |
5780 | && $gcc_cv_objdump -W conftest.o 2>&1 \ | |
1aeb7d7d L |
5781 | | grep conftest.s > /dev/null 2>&1; then |
5782 | gcc_cv_as_working_gdwarf_n_flag=no | |
5783 | else | |
5784 | gcc_cv_as_working_gdwarf_n_flag=yes | |
5785 | fi | |
5786 | changequote([,])dnl]) | |
5787 | if test $gcc_cv_as_working_gdwarf_n_flag = yes; then | |
5788 | AC_DEFINE(HAVE_AS_WORKING_DWARF_N_FLAG, 1, | |
5789 | [Define if your assembler supports --gdwarf-4/--gdwarf-5 even with | |
5790 | compiler generated .debug_line.]) | |
5791 | fi | |
5792 | fi | |
5793 | ||
8ada417f ZW |
5794 | gcc_GAS_CHECK_FEATURE([--gstabs option], |
5795 | gcc_cv_as_gstabs_flag, | |
e0b6d0b3 | 5796 | [--gstabs], [$insn],, |
8ada417f ZW |
5797 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, |
5798 | [Define if your assembler supports the --gstabs option.])]) | |
c8aea42c PB |
5799 | |
5800 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
5801 | gcc_cv_as_debug_prefix_map_flag, | |
e0b6d0b3 | 5802 | [--debug-prefix-map /a=/b], [$insn],, |
c8aea42c PB |
5803 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
5804 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
9d147085 | 5805 | fi |
5f0e9ea2 | 5806 | |
29d7cbd1 | 5807 | gcc_GAS_CHECK_FEATURE([compressed debug sections], |
e0b6d0b3 | 5808 | gcc_cv_as_compress_debug,,, |
29d7cbd1 RO |
5809 | [# gas compiled without zlib cannot compress debug sections and warns |
5810 | # about it, but still exits successfully. So check for this, too. | |
5811 | if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null | |
5812 | then | |
5813 | gcc_cv_as_compress_debug=0 | |
7320a4b5 RO |
5814 | # Since binutils 2.26, gas supports --compress-debug-sections=type, |
5815 | # defaulting to the ELF gABI format. | |
5816 | elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1 | |
5817 | then | |
5818 | gcc_cv_as_compress_debug=2 | |
5819 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5820 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5821 | # Before binutils 2.26, gas only supported --compress-debug-options and | |
5822 | # emitted the traditional GNU format. | |
29d7cbd1 RO |
5823 | elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1 |
5824 | then | |
5825 | gcc_cv_as_compress_debug=1 | |
5826 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5827 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5828 | else | |
5829 | gcc_cv_as_compress_debug=0 | |
29d7cbd1 RO |
5830 | fi]) |
5831 | AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug, | |
5832 | [Define to the level of your assembler's compressed debug section support.]) | |
5833 | AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option", | |
5834 | [Define to the assembler option to enable compressed debug sections.]) | |
5835 | AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option", | |
5836 | [Define to the assembler option to disable compressed debug sections.]) | |
5837 | ||
1918f4b7 | 5838 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment,, |
28e6bb13 NC |
5839 | [.lcomm bar,4,16],, |
5840 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
5841 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
5842 | ||
75a2bcc0 JM |
5843 | if test x$with_sysroot = x && test x$host = x$target \ |
5844 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
5845 | && test "$prefix" != "NONE"; then | |
5846 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
5847 | [Define to PREFIX/include if cpp should also search that directory.]) | |
5848 | fi | |
5849 | ||
75a2bcc0 JM |
5850 | # Determine the version of glibc, if any, used on the target. |
5851 | AC_MSG_CHECKING([for target glibc version]) | |
5852 | AC_ARG_WITH([glibc-version], | |
5853 | [AS_HELP_STRING([--with-glibc-version=M.N], | |
5854 | [assume GCC used with glibc version M.N or later])], [ | |
5855 | if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then | |
5856 | glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` | |
5857 | glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` | |
5858 | else | |
5859 | AC_MSG_ERROR([option --with-glibc-version requires a version number M.N]) | |
5860 | fi], [ | |
5861 | glibc_version_major=0 | |
5862 | glibc_version_minor=0 | |
5863 | [if test -f $target_header_dir/features.h \ | |
5864 | && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \ | |
5865 | && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then | |
5866 | glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'` | |
5867 | glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'` | |
5868 | fi]]) | |
5869 | AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor]) | |
2f73a6c7 JM |
5870 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major], |
5871 | [GNU C Library major version number used on the target, or 0.]) | |
5872 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor], | |
5873 | [GNU C Library minor version number used on the target, or 0.]) | |
75a2bcc0 | 5874 | |
e31bcd1b | 5875 | AC_ARG_ENABLE(gnu-unique-object, |
87e6d9dc TB |
5876 | [AS_HELP_STRING([--enable-gnu-unique-object], |
5877 | [enable the use of the @gnu_unique_object ELF extension on glibc systems])], | |
e31bcd1b JM |
5878 | [case $enable_gnu_unique_object in |
5879 | yes | no) ;; | |
5880 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
5881 | Valid choices are 'yes' and 'no'.]) ;; | |
5882 | esac], | |
1918f4b7 | 5883 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,, |
5ab22850 RR |
5884 | [.type foo, '$target_type_format_char'gnu_unique_object],, |
5885 | # We need to unquote above to to use the definition from config.gcc. | |
e31bcd1b | 5886 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
75a2bcc0 JM |
5887 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )] |
5888 | )]) | |
e31bcd1b JM |
5889 | if test x$enable_gnu_unique_object = xyes; then |
5890 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
5891 | [Define if your assembler supports @gnu_unique_object.]) | |
5892 | fi | |
5893 | ||
03943c05 AO |
5894 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
5895 | [gcc_cv_as_line_zero], | |
5896 | [gcc_cv_as_line_zero=no | |
7cad8a8f | 5897 | if test "x$gcc_cv_as" != x; then |
03943c05 AO |
5898 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s |
5899 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
5900 | test "x`cat conftest.out`" = x | |
5901 | then | |
5902 | gcc_cv_as_line_zero=yes | |
5903 | else | |
5904 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
5905 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
5906 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
5907 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
5908 | fi | |
5909 | rm -f conftest.o conftest.s conftest.out | |
5910 | fi]) | |
5911 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
5912 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
5913 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
5914 | fi | |
5915 | ||
25e08379 PP |
5916 | AC_MSG_CHECKING(support for thin archives) |
5917 | thin_archive_support=no | |
5918 | echo 'int main (void) { return 0; }' > conftest.c | |
5919 | if ($AR --version | sed 1q | grep "GNU ar" \ | |
5920 | && $CC $CFLAGS -c conftest.c \ | |
5921 | && $AR rcT conftest.a conftest.o \ | |
5922 | && $CC $CFLAGS $LDFLAGS -o conftest conftest.a) >/dev/null 2>&1; then | |
5923 | thin_archive_support=yes | |
5924 | fi | |
5925 | rm -f conftest.c conftest.o conftest.a conftest | |
5926 | AC_MSG_RESULT($thin_archive_support) | |
5927 | AC_SUBST(thin_archive_support) | |
5928 | ||
275b60d6 JJ |
5929 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
5930 | gcc_cv_ld_eh_frame_hdr=no | |
34a86c2b | 5931 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
5932 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5933 | && test $in_tree_ld_is_elf = yes; then | |
275b60d6 JJ |
5934 | gcc_cv_ld_eh_frame_hdr=yes |
5935 | fi | |
5936 | elif test x$gcc_cv_ld != x; then | |
6961669f RO |
5937 | if echo "$ld_ver" | grep GNU > /dev/null; then |
5938 | # Check if linker supports --eh-frame-hdr option | |
8dc877eb | 5939 | if $gcc_cv_ld --help 2>&1 | grep eh-frame-hdr > /dev/null; then |
6961669f RO |
5940 | gcc_cv_ld_eh_frame_hdr=yes |
5941 | fi | |
5942 | else | |
5943 | case "$target" in | |
5944 | *-*-solaris2*) | |
e279edb0 RO |
5945 | # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251. |
5946 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then | |
6961669f RO |
5947 | gcc_cv_ld_eh_frame_hdr=yes |
5948 | fi | |
5949 | ;; | |
5950 | esac | |
5951 | fi | |
275b60d6 | 5952 | fi |
232b67d9 | 5953 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
275b60d6 JJ |
5954 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
5955 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
6961669f | 5956 | [Define if your linker supports .eh_frame_hdr.]) |
275b60d6 JJ |
5957 | fi |
5958 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
5959 | ||
5022315a RO |
5960 | AC_MSG_CHECKING(linker CIEv3 in .eh_frame support) |
5961 | gcc_cv_ld_eh_frame_ciev3=no | |
5962 | if test $in_tree_ld = yes ; then | |
5963 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5964 | && test $in_tree_ld_is_elf = yes; then | |
5965 | gcc_cv_ld_eh_frame_ciev3=yes | |
5966 | fi | |
5967 | elif test x$gcc_cv_ld != x; then | |
5968 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5969 | gcc_cv_ld_eh_frame_ciev3=yes | |
5970 | if test 0"$ld_date" -lt 20040513; then | |
5971 | if test -n "$ld_date"; then | |
5972 | # If there was date string, but was earlier than 2004-05-13, fail | |
5973 | gcc_cv_ld_eh_frame_ciev3=no | |
5974 | elif test "$ld_vers_major" -lt 2; then | |
5975 | gcc_cv_ld_eh_frame_ciev3=no | |
5976 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
5977 | gcc_cv_ld_eh_frame_ciev3=no | |
5978 | fi | |
5979 | fi | |
5980 | else | |
5981 | case "$target" in | |
5982 | *-*-solaris2*) | |
5983 | # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1. | |
5984 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then | |
5985 | gcc_cv_ld_eh_frame_ciev3=yes | |
5986 | fi | |
5987 | ;; | |
5988 | esac | |
5989 | fi | |
5990 | fi | |
5991 | AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3, | |
5992 | [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`], | |
5993 | [Define 0/1 if your linker supports CIE v3 in .eh_frame.]) | |
5994 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3) | |
5995 | ||
24a4dd31 JJ |
5996 | AC_MSG_CHECKING(linker position independent executable support) |
5997 | gcc_cv_ld_pie=no | |
5998 | if test $in_tree_ld = yes ; then | |
df2a1cc4 RO |
5999 | case "$target" in |
6000 | # Full PIE support on Solaris was only introduced in gld 2.26. | |
6001 | *-*-solaris2*) gcc_gld_pie_min_version=26 ;; | |
6002 | *) gcc_gld_pie_min_version=15 ;; | |
6003 | esac | |
6004 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge "$gcc_gld_pie_min_version" -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5408ac6c | 6005 | && test $in_tree_ld_is_elf = yes; then |
24a4dd31 JJ |
6006 | gcc_cv_ld_pie=yes |
6007 | fi | |
6008 | elif test x$gcc_cv_ld != x; then | |
df2a1cc4 | 6009 | # Check if linker supports -pie option |
8dc877eb | 6010 | if $gcc_cv_ld --help 2>&1 | grep -- -pie > /dev/null; then |
df2a1cc4 RO |
6011 | gcc_cv_ld_pie=yes |
6012 | case "$target" in | |
6013 | *-*-solaris2*) | |
6014 | if echo "$ld_ver" | grep GNU > /dev/null \ | |
6015 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
6016 | gcc_cv_ld_pie=no | |
6017 | fi | |
6018 | ;; | |
6019 | esac | |
6020 | else | |
6021 | case "$target" in | |
6022 | *-*-solaris2.1[[1-9]]*) | |
f021f1d3 | 6023 | # Solaris 11.3 added PIE support. |
df2a1cc4 RO |
6024 | if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then |
6025 | gcc_cv_ld_pie=yes | |
24a4dd31 | 6026 | fi |
df2a1cc4 RO |
6027 | ;; |
6028 | esac | |
6029 | fi | |
24a4dd31 JJ |
6030 | fi |
6031 | if test x"$gcc_cv_ld_pie" = xyes; then | |
6032 | AC_DEFINE(HAVE_LD_PIE, 1, | |
df2a1cc4 | 6033 | [Define if your linker supports PIE option.]) |
24a4dd31 JJ |
6034 | fi |
6035 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
77ad54d9 ST |
6036 | |
6037 | AC_MSG_CHECKING(linker PIE support with copy reloc) | |
6038 | gcc_cv_ld_pie_copyreloc=no | |
6039 | if test $gcc_cv_ld_pie = yes ; then | |
6040 | if test $in_tree_ld = yes ; then | |
6041 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6042 | gcc_cv_ld_pie_copyreloc=yes | |
6043 | fi | |
6044 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
6045 | # Check if linker supports -pie option with copy reloc | |
6046 | case "$target" in | |
6047 | i?86-*-linux* | x86_64-*-linux*) | |
6048 | cat > conftest1.s <<EOF | |
6049 | .globl a_glob | |
6050 | .data | |
6051 | .type a_glob, @object | |
6052 | .size a_glob, 4 | |
6053 | a_glob: | |
6054 | .long 2 | |
6055 | EOF | |
6056 | cat > conftest2.s <<EOF | |
6057 | .text | |
6058 | .globl main | |
6059 | .type main, @function | |
6060 | main: | |
6061 | movl %eax, a_glob(%rip) | |
6062 | .size main, .-main | |
7b3592ee L |
6063 | .globl ptr |
6064 | .section .data.rel,"aw",@progbits | |
6065 | .type ptr, @object | |
6066 | ptr: | |
6067 | .quad a_glob | |
77ad54d9 ST |
6068 | EOF |
6069 | if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
6070 | && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \ | |
6071 | && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
6072 | && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then | |
6073 | gcc_cv_ld_pie_copyreloc=yes | |
6074 | fi | |
6075 | rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s | |
6076 | ;; | |
6077 | esac | |
6078 | fi | |
77ad54d9 | 6079 | fi |
1be71446 L |
6080 | AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC, |
6081 | [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`], | |
6082 | [Define 0/1 if your linker supports -pie option with copy reloc.]) | |
77ad54d9 | 6083 | AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc) |
24a4dd31 | 6084 | |
22ba88ef EB |
6085 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
6086 | gcc_cv_ld_eh_gc_sections=no | |
6087 | if test $in_tree_ld = yes ; then | |
6088 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
6089 | && test $in_tree_ld_is_elf = yes; then | |
6090 | gcc_cv_ld_eh_gc_sections=yes | |
6091 | fi | |
6092 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
6093 | cat > conftest.s <<EOF | |
6094 | .section .text | |
6095 | .globl _start | |
6096 | .type _start, @function | |
6097 | _start: | |
6098 | .long foo | |
6099 | .size _start, .-_start | |
6100 | .section .text.foo,"ax",@progbits | |
6101 | .type foo, @function | |
6102 | foo: | |
6103 | .long 0 | |
6104 | .size foo, .-foo | |
6105 | .section .gcc_except_table.foo,"a",@progbits | |
6106 | .L0: | |
6107 | .long 0 | |
6108 | .section .eh_frame,"a",@progbits | |
6109 | .long .L0 | |
6110 | EOF | |
6111 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
6112 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
6113 | | grep "gc-sections option ignored" > /dev/null; then | |
6114 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
6115 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
6116 | | grep gcc_except_table > /dev/null; then | |
22ba88ef | 6117 | gcc_cv_ld_eh_gc_sections=yes |
e9d207d9 EB |
6118 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
6119 | if test x$gcc_cv_as_comdat_group != xyes; then | |
6120 | gcc_cv_ld_eh_gc_sections=no | |
6121 | cat > conftest.s <<EOF | |
6122 | .section .text | |
6123 | .globl _start | |
6124 | .type _start, @function | |
6125 | _start: | |
6126 | .long foo | |
6127 | .size _start, .-_start | |
6128 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
6129 | .type foo, @function | |
6130 | foo: | |
6131 | .long 0 | |
6132 | .size foo, .-foo | |
6133 | .section .gcc_except_table.foo,"a",@progbits | |
6134 | .L0: | |
6135 | .long 0 | |
6136 | .section .eh_frame,"a",@progbits | |
6137 | .long .L0 | |
6138 | EOF | |
6139 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
6140 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
6141 | | grep "gc-sections option ignored" > /dev/null; then | |
6142 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
6143 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
6144 | | grep gcc_except_table > /dev/null; then | |
e9d207d9 EB |
6145 | gcc_cv_ld_eh_gc_sections=yes |
6146 | fi | |
6147 | fi | |
6148 | fi | |
22ba88ef EB |
6149 | fi |
6150 | fi | |
6151 | rm -f conftest.s conftest.o conftest | |
6152 | fi | |
e9d207d9 EB |
6153 | case "$target" in |
6154 | hppa*-*-linux*) | |
6155 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
6156 | gcc_cv_ld_eh_gc_sections=no | |
6157 | ;; | |
6158 | esac | |
22ba88ef EB |
6159 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
6160 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
6161 | [Define if your linker supports garbage collection of | |
6162 | sections in presence of EH frames.]) | |
6163 | fi | |
6164 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
6165 | ||
1b500976 JJ |
6166 | AC_MSG_CHECKING(linker EH garbage collection of sections bug) |
6167 | gcc_cv_ld_eh_gc_sections_bug=no | |
6168 | if test $in_tree_ld = yes ; then | |
6169 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \ | |
6170 | && test $in_tree_ld_is_elf = yes; then | |
6171 | gcc_cv_ld_eh_gc_sections_bug=yes | |
6172 | fi | |
6173 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x -a x$gcc_cv_as_comdat_group = xyes; then | |
6174 | gcc_cv_ld_eh_gc_sections_bug=yes | |
6175 | cat > conftest.s <<EOF | |
6176 | .section .text | |
6177 | .globl _start | |
6178 | .type _start, @function | |
6179 | _start: | |
6180 | .long foo | |
6181 | .size _start, .-_start | |
6182 | .section .text.startup.foo,"ax",@progbits | |
6183 | .type foo, @function | |
6184 | foo: | |
6185 | .long 0 | |
6186 | .size foo, .-foo | |
6187 | .section .gcc_except_table.foo,"a",@progbits | |
6188 | .L0: | |
6189 | .long 0 | |
6190 | .section .eh_frame,"a",@progbits | |
6191 | .long .L0 | |
6192 | EOF | |
6193 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
6194 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
6195 | | grep "gc-sections option ignored" > /dev/null; then | |
6196 | : | |
6197 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ | |
6198 | | grep gcc_except_table > /dev/null; then | |
6199 | gcc_cv_ld_eh_gc_sections_bug=no | |
6200 | fi | |
6201 | fi | |
6202 | rm -f conftest.s conftest.o conftest | |
6203 | fi | |
6204 | if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then | |
6205 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1, | |
6206 | [Define if your linker has buggy garbage collection of | |
6207 | sections support when .text.startup.foo like sections are used.]) | |
6208 | fi | |
6209 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug) | |
6210 | ||
29d7cbd1 RO |
6211 | AC_MSG_CHECKING(linker for compressed debug sections) |
6212 | # gold/gld support compressed debug sections since binutils 2.19/2.21 | |
7320a4b5 | 6213 | # In binutils 2.26, gld gained support for the ELF gABI format. |
29d7cbd1 RO |
6214 | if test $in_tree_ld = yes ; then |
6215 | gcc_cv_ld_compress_debug=0 | |
6216 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
6217 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then | |
6218 | gcc_cv_ld_compress_debug=2 | |
6219 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
7320a4b5 RO |
6220 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \ |
6221 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then | |
6222 | gcc_cv_ld_compress_debug=3 | |
6223 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
6224 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \ |
6225 | && test $in_tree_ld_is_elf = yes; then | |
6226 | gcc_cv_ld_compress_debug=1 | |
6227 | fi | |
6228 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
7320a4b5 RO |
6229 | if test "$ld_vers_major" -lt 2 \ |
6230 | || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then | |
6231 | gcc_cv_ld_compress_debug=0 | |
6232 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
6233 | gcc_cv_ld_compress_debug=1 | |
6234 | else | |
6235 | gcc_cv_ld_compress_debug=3 | |
6236 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
6237 | fi |
6238 | if test $ld_is_gold = yes; then | |
6239 | gcc_cv_ld_compress_debug=2 | |
6240 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
6241 | fi | |
6242 | else | |
6243 | changequote(,)dnl | |
6244 | case "${target}" in | |
6245 | *-*-solaris2*) | |
6246 | # Introduced in Solaris 11.2. | |
6247 | if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then | |
6248 | gcc_cv_ld_compress_debug=3 | |
6249 | gcc_cv_ld_compress_debug_option="-z compress-sections" | |
6250 | else | |
6251 | gcc_cv_ld_compress_debug=0 | |
6252 | fi | |
6253 | ;; | |
6254 | *) | |
6255 | # Assume linkers other than GNU ld don't support compessed debug | |
6256 | # sections. | |
6257 | gcc_cv_ld_compress_debug=0 | |
6258 | ;; | |
6259 | esac | |
6260 | changequote([,])dnl | |
6261 | fi | |
6262 | AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug, | |
6263 | [Define to the level of your linker's compressed debug section support.]) | |
6264 | AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option", | |
6265 | [Define to the linker option to enable compressed debug sections.]) | |
6266 | AC_MSG_RESULT($gcc_cv_ld_compress_debug) | |
6267 | ||
eb89c82f IS |
6268 | if test x"$ld64_flag" = x"yes"; then |
6269 | ||
6270 | # Set defaults for possibly untestable items. | |
6271 | gcc_cv_ld64_export_dynamic=0 | |
d3cc82dc | 6272 | gcc_cv_ld64_platform_version=0 |
eb89c82f IS |
6273 | |
6274 | if test "$build" = "$host"; then | |
6275 | darwin_try_test=1 | |
6276 | else | |
6277 | darwin_try_test=0 | |
6278 | fi | |
6279 | ||
6280 | # On Darwin, because of FAT library support, it is often possible to execute | |
6281 | # exes from compatible archs even when the host differs from the build system. | |
6282 | case "$build","$host" in | |
6283 | x86_64-*-darwin*,i?86-*-darwin* | powerpc64*-*-darwin*,powerpc*-*-darwin*) | |
6284 | darwin_try_test=1;; | |
6285 | *) ;; | |
6286 | esac | |
6287 | ||
6288 | # If the configurer specified a minimum ld64 version to be supported, then use | |
6289 | # that to determine feature support. | |
6290 | if test x"${gcc_cv_ld64_version}" != x; then | |
c6d01ef8 IS |
6291 | AC_MSG_CHECKING(ld64 specified version) |
6292 | gcc_cv_ld64_major=`echo "$gcc_cv_ld64_version" | sed -e 's/\..*//'` | |
eb89c82f | 6293 | AC_MSG_RESULT($gcc_cv_ld64_major) |
d3cc82dc | 6294 | if test "$gcc_cv_ld64_major" -ge 236; then |
eb89c82f IS |
6295 | gcc_cv_ld64_export_dynamic=1 |
6296 | fi | |
d3cc82dc IS |
6297 | if test "$gcc_cv_ld64_major" -ge 512; then |
6298 | gcc_cv_ld64_platform_version=1 | |
6299 | fi | |
eb89c82f IS |
6300 | elif test -x "$gcc_cv_ld" -a "$darwin_try_test" -eq 1; then |
6301 | # If the version was not specified, try to find it. | |
6302 | AC_MSG_CHECKING(linker version) | |
6303 | if test x"${gcc_cv_ld64_version}" = x; then | |
6304 | gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'` | |
6305 | fi | |
6306 | AC_MSG_RESULT($gcc_cv_ld64_version) | |
6307 | ||
6308 | AC_MSG_CHECKING(linker for -export_dynamic support) | |
6309 | gcc_cv_ld64_export_dynamic=1 | |
6310 | if $gcc_cv_ld -export_dynamic < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
6311 | gcc_cv_ld64_export_dynamic=0 | |
6312 | fi | |
6313 | AC_MSG_RESULT($gcc_cv_ld64_export_dynamic) | |
d3cc82dc IS |
6314 | |
6315 | AC_MSG_CHECKING(linker for -platform_version support) | |
6316 | gcc_cv_ld64_platform_version=1 | |
6317 | if $gcc_cv_ld -platform_version macos 10.5 0.0 < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
6318 | gcc_cv_ld64_platform_version=0 | |
6319 | fi | |
6320 | AC_MSG_RESULT($gcc_cv_ld64_platform_version) | |
eb89c82f IS |
6321 | fi |
6322 | ||
6323 | if test x"${gcc_cv_ld64_version}" != x; then | |
6324 | AC_DEFINE_UNQUOTED(LD64_VERSION, "${gcc_cv_ld64_version}", | |
6325 | [Define to ld64 version.]) | |
6326 | fi | |
6327 | ||
6328 | AC_DEFINE_UNQUOTED(LD64_HAS_EXPORT_DYNAMIC, $gcc_cv_ld64_export_dynamic, | |
6329 | [Define to 1 if ld64 supports '-export_dynamic'.]) | |
d3cc82dc IS |
6330 | |
6331 | AC_DEFINE_UNQUOTED(LD64_HAS_PLATFORM_VERSION, $gcc_cv_ld64_platform_version, | |
6332 | [Define to 1 if ld64 supports '-platform_version'.]) | |
eb89c82f IS |
6333 | fi |
6334 | ||
3b5e8ee4 IS |
6335 | if test x"$dsymutil_flag" = x"yes"; then |
6336 | ||
6337 | # If the user specified a dsymutil path, then we will already have the | |
6338 | # version string, otherwise, pick it up. | |
6339 | if test x"$gcc_cv_dsymutil" = x; then | |
6340 | AC_MSG_WARN([dsymutil is a required tool for this system, but not found]) | |
6341 | dsymutil_vers="tool unspecified" | |
6342 | elif test x"$dsymutil_vers" = x; then | |
6343 | dsymutil_vers=`$gcc_cv_dsymutil -v /dev/null 2>&1` | |
6344 | fi | |
6345 | ||
6346 | dsymutil_temp=`echo $dsymutil_vers | sed 1q` | |
6347 | AC_MSG_CHECKING(dsymutil version "$dsymutil_temp") | |
6348 | if echo $dsymutil_temp | grep dwarfutils- > /dev/null; then | |
6349 | dsymutil_kind=DWARFUTILS | |
6350 | dsymutil_vers=`echo $dsymutil_temp | sed 's/.*dwarfutils-\([[0-9\.]]*\).*/\1/'` | |
6351 | elif echo $dsymutil_temp | grep clang- > /dev/null; then | |
6352 | dsymutil_kind=CLANG | |
6353 | dsymutil_vers=`echo $dsymutil_temp | sed 's/.*clang-\([[0-9\.]]*\).*/\1/'` | |
6354 | elif echo $dsymutil_temp | grep 'LLVM version ' > /dev/null; then | |
6355 | dsymutil_kind=LLVM | |
6356 | dsymutil_vers=`echo $dsymutil_temp | sed 's/.*LLVM\ version\ \([[0-9\.]]*\).*/\1/'` | |
6357 | else | |
6358 | dsymutil_kind=UNKNOWN | |
6359 | dsymutil_vers="0.0" | |
6360 | fi | |
6361 | dsymutil_major=`expr "$dsymutil_vers" : '\([[0-9]]*\)'` | |
6362 | dsymutil_minor=`expr "$dsymutil_vers" : '[[0-9]]*\.\([[0-9]]*\)'` | |
6363 | dsymutil_tiny=`expr "$dsymutil_vers" : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'` | |
6364 | if test x"${dsymutil_minor}" = x; then | |
6365 | dsymutil_minor=0 | |
6366 | fi | |
6367 | if test x"${dsymutil_tiny}" = x; then | |
6368 | dsymutil_tiny=0 | |
6369 | fi | |
6370 | AC_DEFINE_UNQUOTED(DSYMUTIL_VERSION, [$dsymutil_kind,${dsymutil_major},${dsymutil_minor},${dsymutil_tiny}], | |
6371 | [Define to the dsymutil version.]) | |
6372 | AC_MSG_RESULT($dsymutil_vers : $dsymutil_kind ${dsymutil_major} ${dsymutil_minor} ${dsymutil_tiny} ) | |
6373 | fi | |
6374 | ||
a49a96f6 JJ |
6375 | case $target_os in |
6376 | win32 | pe | cygwin* | mingw32*) | |
6377 | AC_MSG_CHECKING(broken PE linker dwarf5 support) | |
6378 | gcc_cv_ld_broken_pe_dwarf5=yes | |
6379 | if test $in_tree_ld = yes ; then | |
6380 | if grep -q '\.debug_loclists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \ | |
6381 | $gcc_cv_ld_gld_srcdir/scripttempl/pe*.sc \ | |
6382 | && grep -q '\.debug_rnglists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \ | |
6383 | $gcc_cv_ld_gld_srcdir/scripttempl/pe*.sc; then | |
6384 | gcc_cv_ld_broken_pe_dwarf5=no | |
6385 | fi | |
6386 | else | |
6387 | if $gcc_cv_ld --verbose 2>&1 | grep -q '\.debug_loclists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \ | |
6388 | && $gcc_cv_ld --verbose 2>&1 | grep -q '\.debug_rnglists.*BLOCK.*__section_alignment__.*NOLOAD.*:'; then | |
6389 | gcc_cv_ld_broken_pe_dwarf5=no | |
6390 | fi | |
6391 | fi | |
6392 | if test x$gcc_cv_ld_broken_pe_dwarf5 = xyes; then | |
6393 | AC_DEFINE(HAVE_LD_BROKEN_PE_DWARF5, 1, | |
6394 | [Define if the PE linker has broken DWARF 5 support.]) | |
6395 | fi | |
6396 | AC_MSG_RESULT($gcc_cv_ld_broken_pe_dwarf5) | |
2bdf17de EB |
6397 | |
6398 | AC_MSG_CHECKING(PE linker --disable-dynamicbase support) | |
6399 | gcc_cv_ld_disable_dynamicbase=no | |
6400 | if test $in_tree_ld = yes; then | |
6401 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 36 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
6402 | gcc_cv_ld_disable_dynamicbase=yes | |
6403 | fi | |
6404 | else | |
6405 | if $gcc_cv_ld --help 2>&1 | grep -q 'disable\-]dynamicbase' > /dev/null; then | |
6406 | gcc_cv_ld_disable_dynamicbase=yes | |
6407 | fi | |
6408 | fi | |
6409 | if test x"$gcc_cv_ld_disable_dynamicbase" = xyes; then | |
6410 | AC_DEFINE(HAVE_LD_PE_DISABLE_DYNAMICBASE, 1, | |
6411 | [Define if the PE linker supports --disable-dynamicbase option.]) | |
6412 | fi | |
6413 | AC_MSG_RESULT($gcc_cv_ld_disable_dynamicbase) | |
a49a96f6 JJ |
6414 | ;; |
6415 | esac | |
6416 | ||
630327c3 NN |
6417 | # -------- |
6418 | # UNSORTED | |
6419 | # -------- | |
6420 | ||
82e923f6 RS |
6421 | AC_CACHE_CHECK(linker --as-needed support, |
6422 | gcc_cv_ld_as_needed, | |
6423 | [gcc_cv_ld_as_needed=no | |
e927b6ad RO |
6424 | gcc_cv_ld_as_needed_option='--as-needed' |
6425 | gcc_cv_ld_no_as_needed_option='--no-as-needed' | |
765f1bf9 AM |
6426 | if test $in_tree_ld = yes ; then |
6427 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
6428 | && test $in_tree_ld_is_elf = yes; then | |
6429 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
6430 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then |
6431 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
6432 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
6433 | fi | |
765f1bf9 AM |
6434 | fi |
6435 | elif test x$gcc_cv_ld != x; then | |
8dc877eb RO |
6436 | # Check if linker supports --as-needed and --no-as-needed options |
6437 | if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then | |
6438 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
6439 | if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \ |
6440 | && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \ | |
6441 | && echo "$ld_ver" | grep GNU > /dev/null \ | |
6442 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then | |
6443 | # Use these options only when both ld.bfd and ld.gold support | |
6444 | # --push-state/--pop-state, which unfortunately wasn't added | |
6445 | # at the same time. | |
6446 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
6447 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
6448 | fi | |
8dc877eb RO |
6449 | fi |
6450 | case "$target:$gnu_ld" in | |
6451 | *-*-solaris2*:no) | |
6452 | # Solaris 2 ld always supports -z ignore/-z record. Prefer the native | |
6453 | # forms. | |
6454 | gcc_cv_ld_as_needed=yes | |
6455 | gcc_cv_ld_as_needed_option="-z ignore" | |
6456 | gcc_cv_ld_no_as_needed_option="-z record" | |
6457 | ;; | |
6458 | esac | |
765f1bf9 | 6459 | fi |
56cf7859 RO |
6460 | # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses |
6461 | # dl_iterate_phdr, i.e. since Solaris 11. | |
6462 | case "$target" in | |
6463 | *-*-solaris2.1[[1-9]]*) | |
6464 | case "$target" in | |
6465 | i?86-*-* | x86_64-*-*) | |
6466 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
6467 | # Doesn't work with gld on Solaris/x86 due to PR ld/12320. | |
6468 | gcc_cv_ld_as_needed=no | |
6469 | fi | |
6470 | ;; | |
6471 | esac | |
6472 | ;; | |
6473 | *-*-solaris2*) | |
6474 | gcc_cv_ld_as_needed=no | |
6475 | ;; | |
6476 | esac | |
82e923f6 | 6477 | ]) |
765f1bf9 AM |
6478 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
6479 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
e927b6ad RO |
6480 | [Define if your linker supports --as-needed/--no-as-needed or equivalent options.]) |
6481 | AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option", | |
6482 | [Define to the linker option to ignore unused dependencies.]) | |
6483 | AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option", | |
6484 | [Define to the linker option to keep unused dependencies.]) | |
765f1bf9 | 6485 | fi |
765f1bf9 | 6486 | |
3c698bf0 RO |
6487 | AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) |
6488 | saved_LDFLAGS="$LDFLAGS" | |
6489 | for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do | |
6490 | LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" | |
22e05272 | 6491 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
3c698bf0 RO |
6492 | [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) |
6493 | done | |
6494 | LDFLAGS="$saved_LDFLAGS" | |
6495 | if test "x$gcc_cv_ld_clearcap" = xyes; then | |
6496 | AC_DEFINE([HAVE_LD_CLEARCAP], 1, | |
6497 | [Define if the linker supports clearing hardware capabilities via mapfile.]) | |
6498 | AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map]) | |
6499 | fi | |
6500 | AC_MSG_RESULT($gcc_cv_ld_clearcap) | |
6501 | ||
e9dda04f AM |
6502 | case "$target" in |
6503 | powerpc*-*-*) | |
6504 | case "$target" in | |
6505 | *le-*-linux*) | |
6506 | emul_name="-melf32lppc" | |
6507 | ;; | |
6508 | *) | |
6509 | emul_name="-melf32ppc" | |
6510 | ;; | |
6511 | esac | |
6512 | AC_CACHE_CHECK(linker .gnu.attributes long double support, | |
6513 | gcc_cv_ld_ppc_attr, | |
6514 | [gcc_cv_ld_ppc_attr=no | |
6515 | if test x"$ld_is_gold" = xyes; then | |
6516 | gcc_cv_ld_ppc_attr=yes | |
6517 | elif test $in_tree_ld = yes ; then | |
6518 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
6519 | -a "$gcc_cv_gld_minor_version" -ge 28 \ | |
6520 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
6521 | gcc_cv_ld_ppc_attr=yes | |
6522 | fi | |
6523 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
6524 | # check that merging the long double .gnu_attribute doesn't warn | |
6525 | cat > conftest1.s <<EOF | |
6526 | .gnu_attribute 4,1 | |
6527 | EOF | |
6528 | cat > conftest2.s <<EOF | |
6529 | .gnu_attribute 4,9 | |
6530 | EOF | |
6531 | if $gcc_cv_as -a32 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
6532 | && $gcc_cv_as -a32 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
6533 | && $gcc_cv_ld $emul_name -r -o conftest.o conftest1.o conftest2.o > /dev/null 2> conftest.err \ | |
6534 | && test ! -s conftest.err; then | |
6535 | gcc_cv_ld_ppc_attr=yes | |
6536 | fi | |
6537 | rm -f conftest.err conftest.o conftest1.o conftest2.o conftest1.s conftest2.s | |
6538 | fi | |
6539 | ]) | |
6540 | if test x$gcc_cv_ld_ppc_attr = xyes; then | |
6541 | AC_DEFINE(HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE, 1, | |
6542 | [Define if your PowerPC linker has .gnu.attributes long double support.]) | |
6543 | fi | |
6544 | ;; | |
6545 | esac | |
6546 | ||
d82bf747 | 6547 | case "$target:$tm_file" in |
a9ef07fe | 6548 | powerpc64*-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) |
a26f86dc | 6549 | case "$target" in |
14523c25 AB |
6550 | *le-*-linux*) |
6551 | emul_name="-melf64lppc" | |
6552 | ;; | |
a26f86dc AT |
6553 | *-*-linux*) |
6554 | emul_name="-melf64ppc" | |
6555 | ;; | |
2a418323 PK |
6556 | *le-*-freebsd*) |
6557 | emul_name="-melf64lppc_fbsd" | |
6558 | ;; | |
a26f86dc AT |
6559 | *-*-freebsd*) |
6560 | emul_name="-melf64ppc_fbsd" | |
6561 | ;; | |
6562 | esac | |
85b776df AM |
6563 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
6564 | gcc_cv_ld_no_dot_syms, | |
6565 | [gcc_cv_ld_no_dot_syms=no | |
38e1b75f AM |
6566 | if test x"$ld_is_gold" = xyes; then |
6567 | gcc_cv_ld_no_dot_syms=yes | |
6568 | elif test $in_tree_ld = yes ; then | |
85b776df AM |
6569 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then |
6570 | gcc_cv_ld_no_dot_syms=yes | |
6571 | fi | |
6572 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
6573 | cat > conftest1.s <<EOF | |
6574 | .text | |
6575 | bl .foo | |
6576 | EOF | |
6577 | cat > conftest2.s <<EOF | |
6578 | .section ".opd","aw" | |
6579 | .align 3 | |
6580 | .globl foo | |
6581 | .type foo,@function | |
6582 | foo: | |
6583 | .quad .LEfoo,.TOC.@tocbase,0 | |
6584 | .text | |
6585 | .LEfoo: | |
6586 | blr | |
6587 | .size foo,.-.LEfoo | |
6588 | EOF | |
6589 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
6590 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
a26f86dc | 6591 | && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then |
85b776df AM |
6592 | gcc_cv_ld_no_dot_syms=yes |
6593 | fi | |
6594 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
6595 | fi | |
6596 | ]) | |
6597 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
6598 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
6599 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
6600 | fi | |
070b27da AM |
6601 | |
6602 | AC_CACHE_CHECK(linker large toc support, | |
6603 | gcc_cv_ld_large_toc, | |
6604 | [gcc_cv_ld_large_toc=no | |
38e1b75f AM |
6605 | if test x"$ld_is_gold" = xyes; then |
6606 | gcc_cv_ld_large_toc=yes | |
6607 | elif test $in_tree_ld = yes ; then | |
070b27da AM |
6608 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then |
6609 | gcc_cv_ld_large_toc=yes | |
6610 | fi | |
6611 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
6612 | cat > conftest.s <<EOF | |
6613 | .section ".tbss","awT",@nobits | |
6614 | .align 3 | |
6615 | ie0: .space 8 | |
6616 | .global _start | |
6617 | .text | |
6618 | _start: | |
6619 | addis 9,13,ie0@got@tprel@ha | |
6620 | ld 9,ie0@got@tprel@l(9) | |
6621 | EOF | |
6622 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
a26f86dc | 6623 | && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then |
070b27da AM |
6624 | gcc_cv_ld_large_toc=yes |
6625 | fi | |
6626 | rm -f conftest conftest.o conftest.s | |
6627 | fi | |
6628 | ]) | |
6629 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
6630 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
6631 | [Define if your PowerPC64 linker supports a large TOC.]) | |
6632 | fi | |
3954ead0 AM |
6633 | |
6634 | AC_CACHE_CHECK(linker toc pointer alignment, | |
6635 | gcc_cv_ld_toc_align, | |
6636 | [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then | |
6637 | cat > conftest.s <<EOF | |
6638 | .global _start | |
6639 | .text | |
6640 | _start: | |
6641 | addis 9,2,x@got@ha | |
6642 | .section .data.rel.ro,"aw",@progbits | |
6643 | .p2align 16 | |
6644 | .space 32768 | |
6645 | x: .quad .TOC. | |
6646 | EOF | |
6647 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
458bc9b1 | 6648 | && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then |
3954ead0 AM |
6649 | gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'` |
6650 | fi | |
6651 | rm -f conftest conftest.o conftest.s | |
6652 | fi | |
6653 | ]) | |
6654 | if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then | |
6655 | AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align, | |
6656 | [Define to .TOC. alignment forced by your linker.]) | |
6657 | fi | |
85b776df AM |
6658 | ;; |
6659 | esac | |
6660 | ||
9e81cc8b DE |
6661 | case "$target" in |
6662 | *-*-aix*) | |
6663 | AC_CACHE_CHECK(linker large toc support, | |
6664 | gcc_cv_ld_large_toc, | |
6665 | [gcc_cv_ld_large_toc=no | |
6666 | if test x$gcc_cv_as != x ; then | |
6667 | cat > conftest.s <<EOF | |
6668 | .toc | |
6669 | LC..1: | |
6670 | .tc a[[TC]],a[[RW]] | |
6671 | .extern a[[RW]] | |
6672 | .csect .text[[PR]] | |
6673 | .largetoctest: | |
6674 | addis 9,LC..1@u(2) | |
6675 | ld 3,LC..1@l(9) | |
6676 | EOF | |
6677 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then | |
6678 | gcc_cv_ld_large_toc=yes | |
6679 | fi | |
6680 | rm -f conftest conftest.o conftest.s | |
6681 | fi | |
6682 | ]) | |
6683 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
6684 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
01ae4861 | 6685 | [Define if your PowerPC64 linker supports a large TOC.]) |
9e81cc8b DE |
6686 | fi |
6687 | ;; | |
6688 | esac | |
6689 | ||
cd533689 PP |
6690 | AC_CACHE_CHECK(linker --build-id support, |
6691 | gcc_cv_ld_buildid, | |
6692 | [gcc_cv_ld_buildid=no | |
6693 | if test $in_tree_ld = yes ; then | |
6694 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
6695 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
6696 | "$gcc_cv_gld_major_version" -gt 2 \ | |
6697 | && test $in_tree_ld_is_elf = yes; then | |
6698 | gcc_cv_ld_buildid=yes | |
6699 | fi | |
6700 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 6701 | if $gcc_cv_ld --help 2>&1 | grep build-id > /dev/null; then |
cd533689 PP |
6702 | gcc_cv_ld_buildid=yes |
6703 | fi | |
6704 | fi]) | |
6705 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
6706 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
6707 | [Define if your linker supports --build-id.]) | |
6708 | fi | |
6709 | ||
6710 | AC_ARG_ENABLE(linker-build-id, | |
b88ecf55 AS |
6711 | [AS_HELP_STRING([--enable-linker-build-id], |
6712 | [compiler will always pass --build-id to linker])], | |
cd533689 PP |
6713 | [], |
6714 | enable_linker_build_id=no) | |
6715 | ||
6716 | if test x"$enable_linker_build_id" = xyes; then | |
6717 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
6718 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
6719 | [Define if gcc should always pass --build-id to linker.]) | |
6720 | else | |
6721 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
6722 | fi | |
6723 | fi | |
6724 | ||
a6198222 RO |
6725 | # In binutils 2.21, GNU ld gained support for new emulations fully |
6726 | # supporting the Solaris 2 ABI. Detect their presence in the linker used. | |
6727 | AC_CACHE_CHECK(linker *_sol2 emulation support, | |
6728 | gcc_cv_ld_sol2_emulation, | |
6729 | [gcc_cv_ld_sol2_emulation=no | |
6730 | if test $in_tree_ld = yes ; then | |
6731 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
6732 | "$gcc_cv_gld_minor_version" -ge 21 -o \ | |
6733 | "$gcc_cv_gld_major_version" -gt 2 \ | |
6734 | && test $in_tree_ld_is_elf = yes; then | |
6735 | gcc_cv_ld_sol2_emulation=yes | |
6736 | fi | |
6737 | elif test x$gcc_cv_ld != x; then | |
6738 | if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \ | |
6739 | grep _sol2 > /dev/null; then | |
6740 | gcc_cv_ld_sol2_emulation=yes | |
6741 | fi | |
6742 | fi]) | |
6743 | if test x"$gcc_cv_ld_sol2_emulation" = xyes; then | |
6744 | AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1, | |
6745 | [Define if your linker supports the *_sol2 emulations.]) | |
6746 | fi | |
6747 | ||
380e5ca4 MM |
6748 | AC_CACHE_CHECK(linker --sysroot support, |
6749 | gcc_cv_ld_sysroot, | |
6750 | [gcc_cv_ld_sysroot=no | |
6751 | if test $in_tree_ld = yes ; then | |
6752 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
7032df40 | 6753 | gcc_cv_ld_sysroot=yes |
380e5ca4 MM |
6754 | fi |
6755 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 6756 | if $gcc_cv_ld --help 2>&1 | grep sysroot > /dev/null; then |
380e5ca4 MM |
6757 | gcc_cv_ld_sysroot=yes |
6758 | fi | |
6759 | fi]) | |
6760 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
6761 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
6762 | [Define if your linker supports --sysroot.]) | |
6763 | fi | |
6764 | ||
2d110442 RO |
6765 | case $target in |
6766 | *-*-solaris2*) | |
6767 | # Check for system-provided CRTs on Solaris 11.x and Solaris 12. | |
6768 | AC_CACHE_CHECK([system-provided CRTs on Solaris], | |
6769 | gcc_cv_solaris_crts, | |
6770 | [gcc_cv_solaris_crts=no | |
6771 | if test x$host != x$target; then | |
6772 | if test "x$with_sysroot" = xyes; then | |
6773 | target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root" | |
6774 | else | |
6775 | target_sysroot="${with_sysroot}" | |
6776 | fi | |
6777 | fi | |
6778 | target_libdir="$target_sysroot/usr/lib" | |
6779 | # At the time they were added, gcrt1.o became a symlink for backwards | |
6780 | # compatibility on x86, while crt1.o was added on sparc, so check for that. | |
6781 | case $target in | |
6782 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
6783 | if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi | |
6784 | ;; | |
6785 | sparc*-*-solaris2*) | |
6786 | if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi | |
6787 | ;; | |
6788 | esac]) | |
6789 | ;; | |
6790 | esac | |
6791 | if test x$gcc_cv_solaris_crts = xyes; then | |
6792 | AC_DEFINE(HAVE_SOLARIS_CRTS, 1, | |
6793 | [Define if the system-provided CRTs are present on Solaris.]) | |
6794 | fi | |
6795 | ||
78fd4c51 SL |
6796 | AC_ARG_ENABLE(libssp, |
6797 | [AS_HELP_STRING([--enable-libssp], [enable linking against libssp])], | |
6798 | [case "${enableval}" in | |
6799 | yes|no) | |
6800 | ;; | |
6801 | *) | |
6802 | AC_MSG_ERROR([unknown libssp setting $enableval]) | |
6803 | ;; | |
6804 | esac], []) | |
6805 | ||
77008252 | 6806 | # Test for stack protector support in target C library. |
a6ccdbab | 6807 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
78fd4c51 SL |
6808 | gcc_cv_libc_provides_ssp, |
6809 | [gcc_cv_libc_provides_ssp=no | |
6810 | if test "x$enable_libssp" = "xno"; then | |
6811 | gcc_cv_libc_provides_ssp=yes | |
6812 | elif test "x$enable_libssp" = "xyes"; then | |
6813 | gcc_cv_libc_provides_ssp=no | |
6814 | else | |
a6ccdbab | 6815 | case "$target" in |
755658a5 GR |
6816 | *-*-musl*) |
6817 | # All versions of musl provide stack protector | |
6818 | gcc_cv_libc_provides_ssp=yes;; | |
8466af06 | 6819 | *-*-linux* | *-*-kfreebsd*-gnu) |
75a2bcc0 | 6820 | # glibc 2.4 and later provides __stack_chk_fail and |
77008252 | 6821 | # either __stack_chk_guard, or TLS access to stack guard canary. |
75a2bcc0 JM |
6822 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [ |
6823 | [if test -f $target_header_dir/features.h \ | |
1a242e3c | 6824 | && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ |
6961669f | 6825 | $target_header_dir/features.h > /dev/null; then |
75a2bcc0 | 6826 | if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
6961669f RO |
6827 | $target_header_dir/features.h > /dev/null && \ |
6828 | test -f $target_header_dir/bits/uClibc_config.h && \ | |
1a242e3c | 6829 | $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ |
6961669f | 6830 | $target_header_dir/bits/uClibc_config.h > /dev/null; then |
fed6d628 | 6831 | gcc_cv_libc_provides_ssp=yes |
77008252 | 6832 | fi |
40295cc7 IZ |
6833 | # all versions of Bionic support stack protector |
6834 | elif test -f $target_header_dir/sys/cdefs.h \ | |
6835 | && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \ | |
6836 | $target_header_dir/sys/cdefs.h > /dev/null; then | |
6837 | gcc_cv_libc_provides_ssp=yes | |
75a2bcc0 | 6838 | fi]]) |
a6ccdbab | 6839 | ;; |
4cc115a2 TS |
6840 | *-*-gnu*) |
6841 | # Avoid complicated tests (see | |
6842 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
6843 | # simply assert that glibc does provide this, which is true for all | |
6844 | # realistically usable GNU/Hurd configurations. | |
755658a5 | 6845 | # All supported versions of musl provide it as well |
4cc115a2 | 6846 | gcc_cv_libc_provides_ssp=yes;; |
388dc9e6 | 6847 | *-*-darwin* | *-*-freebsd* | *-*-netbsd*) |
a6ccdbab EC |
6848 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
6849 | [echo "no __stack_chk_fail on this target"]) | |
6850 | ;; | |
78fd4c51 SL |
6851 | *) gcc_cv_libc_provides_ssp=no ;; |
6852 | esac | |
6853 | fi]) | |
a6ccdbab | 6854 | |
77008252 JJ |
6855 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
6856 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
6857 | [Define if your target C library provides stack protector support]) | |
6858 | fi | |
6859 | ||
e0f6cba0 MG |
6860 | # Check whether --enable-default-ssp was given. |
6861 | AC_ARG_ENABLE(default-ssp, | |
6862 | [AS_HELP_STRING([--enable-default-ssp], | |
6863 | [enable Stack Smashing Protection as default])],[ | |
6864 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
6865 | case "$target" in | |
6866 | ia64*-*-*) enable_default_ssp=no ;; | |
6867 | *) enable_default_ssp=$enableval ;; | |
6868 | esac | |
6869 | else | |
6870 | enable_default_ssp=no | |
6871 | fi], | |
6872 | enable_default_ssp=no) | |
9a557138 | 6873 | if test x$enable_default_ssp = xyes ; then |
e0f6cba0 MG |
6874 | AC_DEFINE(ENABLE_DEFAULT_SSP, 1, |
6875 | [Define if your target supports default stack protector and it is enabled.]) | |
6876 | fi | |
6877 | AC_SUBST([enable_default_ssp]) | |
6878 | ||
f4e749b4 TT |
6879 | # Test for <sys/sdt.h> on the target. |
6880 | GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) | |
6881 | AC_MSG_CHECKING(sys/sdt.h in the target C library) | |
6882 | have_sys_sdt_h=no | |
6883 | if test -f $target_header_dir/sys/sdt.h; then | |
d11aaed7 | 6884 | have_sys_sdt_h=yes |
f4e749b4 TT |
6885 | AC_DEFINE(HAVE_SYS_SDT_H, 1, |
6886 | [Define if your target C library provides sys/sdt.h]) | |
6887 | fi | |
6888 | AC_MSG_RESULT($have_sys_sdt_h) | |
6889 | ||
ed965309 JJ |
6890 | # Check if TFmode long double should be used by default or not. |
6891 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
6892 | # and later they can use TFmode. | |
6893 | case "$target" in | |
f7cc5390 | 6894 | powerpc*-*-linux* | \ |
ed965309 JJ |
6895 | sparc*-*-linux* | \ |
6896 | s390*-*-linux* | \ | |
6897 | alpha*-*-linux*) | |
6898 | AC_ARG_WITH(long-double-128, | |
b88ecf55 AS |
6899 | [AS_HELP_STRING([--with-long-double-128], |
6900 | [use 128-bit long double by default])], | |
8d7be8d6 SN |
6901 | gcc_cv_target_ldbl128="$with_long_double_128", [ |
6902 | case "$target" in | |
6903 | s390*-*-linux-musl*) | |
6904 | gcc_cv_target_ldbl128=yes | |
6905 | ;; | |
6906 | powerpc*-*-linux-musl*) | |
6907 | gcc_cv_target_ldbl128=no | |
6908 | ;; | |
6909 | *)] | |
75a2bcc0 JM |
6910 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [ |
6911 | [gcc_cv_target_ldbl128=no | |
ed965309 | 6912 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
6961669f | 6913 | $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \ |
65280f6c | 6914 | && gcc_cv_target_ldbl128=yes |
8d7be8d6 SN |
6915 | ]])] |
6916 | [ | |
6917 | ;; | |
6918 | esac | |
6919 | ]) | |
ed965309 JJ |
6920 | ;; |
6921 | esac | |
6922 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
6923 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
6924 | [Define if TFmode long double should be the default]) | |
6925 | fi | |
6926 | ||
8c7a27d5 MM |
6927 | # Check if TFmode long double target should use the IBM extended double or IEEE |
6928 | # 128-bit floating point formats if long doubles are 128-bits long. The long | |
6929 | # double type can only be switched on powerpc64 bit Linux systems where VSX is | |
6930 | # supported. Other PowerPC systems do not build the IEEE 128-bit emulator in | |
6931 | # libgcc. | |
6932 | AC_ARG_WITH([long-double-format], | |
6933 | [AS_HELP_STRING([--with-long-double-format={ieee,ibm}] | |
6934 | [Specify whether PowerPC long double uses IEEE or IBM format])],[ | |
6935 | case "$target:$with_long_double_format" in | |
6936 | powerpc64le-*-linux*:ieee | powerpc64le-*-linux*:ibm) | |
6937 | : | |
6938 | ;; | |
6939 | powerpc64-*-linux*:ieee | powerpc64-*-linux*:ibm) | |
6940 | # IEEE 128-bit emulation is only built on 64-bit VSX Linux systems | |
6941 | case "$with_cpu" in | |
6942 | power7 | power8 | power9 | power1*) | |
6943 | : | |
6944 | ;; | |
6945 | *) | |
6946 | AC_MSG_ERROR([Configuration option --with-long-double-format is only \ | |
6947 | supported if the default cpu is power7 or newer]) | |
6948 | with_long_double_format="" | |
6949 | ;; | |
6950 | esac | |
6951 | ;; | |
de2c1d00 | 6952 | powerpc64*-*-linux*:*) |
8c7a27d5 MM |
6953 | AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee]) |
6954 | with_long_double_format="" | |
6955 | ;; | |
6956 | *) | |
6957 | AC_MSG_ERROR([Configure option --with-long-double-format is only supported \ | |
6958 | on 64-bit PowerPC VSX Linux systems]) | |
6959 | with_long_double_format="" | |
6960 | ;; | |
6961 | esac], | |
6962 | []) | |
6963 | ||
26a2e6ae PB |
6964 | # Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP |
6965 | # values in the TCB. Currently, only GLIBC 2.23 and later support this. | |
6966 | gcc_cv_libc_provides_hwcap_in_tcb=no | |
6967 | case "$target" in | |
6968 | powerpc*-*-linux*) | |
6969 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], ) | |
6970 | ;; | |
6971 | esac | |
6972 | if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then | |
6973 | AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1, | |
6974 | [Define if your target C Library provides the AT_HWCAP value in the TCB]) | |
6975 | fi | |
6976 | ||
54b3d52c DM |
6977 | # Check if the target LIBC handles PT_GNU_STACK. |
6978 | gcc_cv_libc_gnustack=unknown | |
6979 | case "$target" in | |
25abbb92 IL |
6980 | mips*-*-linux-musl*) |
6981 | gcc_cv_libc_gnustack=yes | |
6982 | ;; | |
54b3d52c DM |
6983 | mips*-*-linux*) |
6984 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [31], [gcc_cv_libc_gnustack=yes], ) | |
6985 | ;; | |
6986 | esac | |
6987 | if test x$gcc_cv_libc_gnustack = xyes; then | |
6988 | AC_DEFINE(TARGET_LIBC_GNUSTACK, 1, | |
6989 | [Define if your target C Library properly handles PT_GNU_STACK]) | |
6990 | fi | |
6991 | ||
6961669f RO |
6992 | AC_MSG_CHECKING(dl_iterate_phdr in target C library) |
6993 | gcc_cv_target_dl_iterate_phdr=unknown | |
6994 | case "$target" in | |
ccd1242e | 6995 | *-*-solaris2*) |
6961669f RO |
6996 | # <link.h> needs both a dl_iterate_phdr declaration and support for |
6997 | # compilation with largefile support. | |
6998 | if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \ | |
6999 | && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then | |
7000 | gcc_cv_target_dl_iterate_phdr=yes | |
7001 | else | |
7002 | gcc_cv_target_dl_iterate_phdr=no | |
7003 | fi | |
7004 | ;; | |
dbed5a9b JM |
7005 | *-*-dragonfly* | *-*-freebsd*) |
7006 | if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then | |
7007 | gcc_cv_target_dl_iterate_phdr=yes | |
7008 | else | |
7009 | gcc_cv_target_dl_iterate_phdr=no | |
7010 | fi | |
7011 | ;; | |
755658a5 GR |
7012 | *-linux-musl*) |
7013 | gcc_cv_target_dl_iterate_phdr=yes | |
7014 | ;; | |
6961669f RO |
7015 | esac |
7016 | GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR]) | |
7017 | if test x$gcc_cv_target_dl_iterate_phdr = xyes; then | |
7018 | AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1, | |
7019 | [Define if your target C library provides the `dl_iterate_phdr' function.]) | |
7020 | fi | |
7021 | AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr) | |
7022 | ||
cd030c07 DN |
7023 | # We no longer support different GC mechanisms. Emit an error if |
7024 | # the user configures with --with-gc. | |
81bf3d9e | 7025 | AC_ARG_WITH(gc, |
b88ecf55 | 7026 | [AS_HELP_STRING([--with-gc={page,zone}], |
cd030c07 DN |
7027 | [this option is not supported anymore. It used to choose |
7028 | the garbage collection mechanism to use with the compiler])], | |
7029 | [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])], | |
7030 | []) | |
81bf3d9e | 7031 | |
00020c16 ILT |
7032 | # Libraries to use on the host. This will normally be set by the top |
7033 | # level Makefile. Here we simply capture the value for our Makefile. | |
7034 | if test -z "${HOST_LIBS+set}"; then | |
7035 | HOST_LIBS= | |
7036 | fi | |
7037 | AC_SUBST(HOST_LIBS) | |
7038 | ||
3c809ba4 | 7039 | # Use the system's zlib library. |
96a58590 | 7040 | AM_ZLIB |
3c809ba4 | 7041 | |
dc6746e7 PT |
7042 | dnl Very limited version of automake's enable-maintainer-mode |
7043 | ||
7044 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
7045 | dnl maintainer-mode is disabled by default | |
7046 | AC_ARG_ENABLE(maintainer-mode, | |
b88ecf55 AS |
7047 | [AS_HELP_STRING([--enable-maintainer-mode], |
7048 | [enable make rules and dependencies not useful | |
7049 | (and sometimes confusing) to the casual installer])], | |
dc6746e7 PT |
7050 | maintainer_mode=$enableval, |
7051 | maintainer_mode=no) | |
7052 | ||
7053 | AC_MSG_RESULT($maintainer_mode) | |
7054 | ||
7055 | if test "$maintainer_mode" = "yes"; then | |
7056 | MAINT='' | |
7057 | else | |
7058 | MAINT='#' | |
7059 | fi | |
7060 | AC_SUBST(MAINT)dnl | |
7061 | ||
909b30a1 EG |
7062 | dnl Variables for tags utilities; copied from automake 1.16.4+'s init.m4 |
7063 | if test -z "$CTAGS"; then | |
7064 | CTAGS=ctags | |
7065 | fi | |
7066 | AC_SUBST([CTAGS]) | |
7067 | if test -z "$ETAGS"; then | |
7068 | ETAGS=etags | |
7069 | fi | |
7070 | AC_SUBST([ETAGS]) | |
7071 | if test -z "$CSCOPE"; then | |
7072 | CSCOPE=cscope | |
7073 | fi | |
7074 | AC_SUBST([CSCOPE]) | |
7075 | ||
427b248d JM |
7076 | dnl Whether to prevent multiple front-ends from linking at the same time |
7077 | ||
7078 | AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once]) | |
7079 | AC_ARG_ENABLE(link-mutex, | |
7080 | [AS_HELP_STRING([--enable-link-mutex], | |
7081 | [avoid linking multiple front-ends at once to avoid thrashing | |
7082 | on the build machine])], | |
7083 | do_link_mutex=$enableval, | |
7084 | do_link_mutex=no) | |
7085 | AC_MSG_RESULT($do_link_mutex) | |
7086 | ||
7087 | if test "$do_link_mutex" = "yes"; then | |
7088 | DO_LINK_MUTEX=true | |
7089 | else | |
7090 | DO_LINK_MUTEX=false | |
7091 | fi | |
7092 | AC_SUBST(DO_LINK_MUTEX) | |
7093 | ||
d326ebc9 JJ |
7094 | dnl Whether to prevent multiple GCC front-ends from linking at the same time |
7095 | ||
7096 | AC_MSG_CHECKING([whether to serialize linking of multiple front-ends]) | |
7097 | AC_ARG_ENABLE(link-serialization, | |
7098 | [AS_HELP_STRING([--enable-link-serialization], | |
7099 | [avoid linking multiple GCC front-ends at once using make | |
7100 | dependencies to avoid thrashing on the build machine])], | |
7101 | do_link_serialization=$enableval, | |
7102 | do_link_serialization=no) | |
7103 | AC_MSG_RESULT($do_link_serialization) | |
7104 | ||
7105 | case "$do_link_serialization" in | |
7106 | yes) | |
7107 | DO_LINK_SERIALIZATION=1;; | |
7108 | [[1-9]] | [[1-9]][[0-9]] | [[1-9]][[0-9]][[0-9]]) | |
7109 | DO_LINK_SERIALIZATION=$do_link_serialization;; | |
7110 | no) | |
7111 | DO_LINK_SERIALIZATION=;; | |
7112 | *) | |
7113 | AC_MSG_ERROR(bad value ${do_link_serialization} given for --enable-link-serialization) ;; | |
7114 | esac | |
7115 | AC_SUBST(DO_LINK_SERIALIZATION) | |
7116 | ||
630327c3 NN |
7117 | # -------------- |
7118 | # Language hooks | |
7119 | # -------------- | |
7120 | ||
571a8de5 DE |
7121 | # Make empty files to contain the specs and options for each language. |
7122 | # Then add #include lines to for a compiler that has specs and/or options. | |
7123 | ||
cc11cc9b | 7124 | subdirs= |
d7b42618 | 7125 | lang_opt_files= |
571a8de5 | 7126 | lang_specs_files= |
3103b7db | 7127 | lang_tree_files= |
571a8de5 DE |
7128 | # These (without "all_") are set in each config-lang.in. |
7129 | # `language' must be a single word so is spelled singularly. | |
7130 | all_languages= | |
571a8de5 | 7131 | all_compilers= |
fda9c731 | 7132 | all_outputs='Makefile' |
223bf296 TS |
7133 | # List of language configure and makefile fragments. |
7134 | all_lang_configurefrags= | |
2ed26f6b | 7135 | all_lang_makefrags= |
11a67599 | 7136 | # Additional files for gengtype |
ef69da62 | 7137 | all_gtfiles="$target_gtfiles" |
571a8de5 | 7138 | |
cc11cc9b PB |
7139 | # These are the languages that are set in --enable-languages, |
7140 | # and are available in the GCC tree. | |
7141 | all_selected_languages= | |
7142 | ||
571a8de5 DE |
7143 | # Add the language fragments. |
7144 | # Languages are added via two mechanisms. Some information must be | |
7145 | # recorded in makefile variables, these are defined in config-lang.in. | |
7146 | # We accumulate them and plug them into the main Makefile. | |
7147 | # The other mechanism is a set of hooks for each of the main targets | |
7148 | # like `clean', `install', etc. | |
7149 | ||
571a8de5 DE |
7150 | language_hooks="Make-hooks" |
7151 | ||
cc11cc9b | 7152 | for lang in ${srcdir}/*/config-lang.in |
571a8de5 | 7153 | do |
cc11cc9b | 7154 | changequote(,)dnl |
1546bb64 PB |
7155 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
7156 | ||
cc11cc9b PB |
7157 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
7158 | if test "x$lang_alias" = x | |
7159 | then | |
7160 | echo "$lang doesn't set \$language." 1>&2 | |
7161 | exit 1 | |
7162 | fi | |
7163 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
7164 | subdirs="$subdirs $subdir" | |
349c3166 OH |
7165 | |
7166 | # $gcc_subdir is where the gcc integration files are to be found | |
7167 | # for a language, both for internal compiler purposes (compiler | |
7168 | # sources implementing front-end to GCC tree converters), and for | |
7169 | # build infrastructure purposes (Make-lang.in, etc.) | |
7170 | # | |
7171 | # This will be <subdir> (relative to $srcdir) if a line like | |
7172 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
7173 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
7174 | # otherwise. | |
7175 | # | |
7176 | # Except for the language alias (fetched above), the regular | |
7177 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
7178 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
7179 | # only this and the language alias. | |
7180 | ||
7181 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
7182 | if [ "$gcc_subdir" = "" ]; then | |
7183 | gcc_subdir="$subdir" | |
7184 | fi | |
7185 | ||
cc11cc9b PB |
7186 | case ",$enable_languages," in |
7187 | *,$lang_alias,*) | |
7188 | all_selected_languages="$all_selected_languages $lang_alias" | |
349c3166 OH |
7189 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
7190 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
cc11cc9b PB |
7191 | fi |
7192 | ;; | |
7193 | esac | |
7194 | changequote([,])dnl | |
7195 | ||
cc11cc9b PB |
7196 | language= |
7197 | boot_language= | |
7198 | compilers= | |
cc11cc9b PB |
7199 | outputs= |
7200 | gtfiles= | |
1546bb64 | 7201 | subdir_requires= |
349c3166 | 7202 | . ${srcdir}/$gcc_subdir/config-lang.in |
cc11cc9b PB |
7203 | if test "x$language" = x |
7204 | then | |
349c3166 | 7205 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
cc11cc9b PB |
7206 | exit 1 |
7207 | fi | |
1546bb64 PB |
7208 | |
7209 | ok=: | |
7210 | case ",$enable_languages," in | |
7211 | *,$lang_alias,*) ;; | |
7212 | *) | |
7213 | for i in $subdir_requires; do | |
b6348cb3 | 7214 | test -f "${srcdir}/$i/config-lang.in" && continue |
1546bb64 PB |
7215 | ok=false |
7216 | break | |
7217 | done | |
7218 | ;; | |
7219 | esac | |
7220 | $ok || continue | |
7221 | ||
223bf296 | 7222 | all_lang_configurefrags="$all_lang_configurefrags \$(srcdir)/$gcc_subdir/config-lang.in" |
ff99d05f JJ |
7223 | if test "x$language" = xc && test -n "$all_lang_makefrags"; then |
7224 | # Put c/Make-lang.in fragment first to match serialization languages order. | |
7225 | all_lang_makefrags="\$(srcdir)/$gcc_subdir/Make-lang.in $all_lang_makefrags" | |
7226 | else | |
7227 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" | |
7228 | fi | |
349c3166 OH |
7229 | if test -f $srcdir/$gcc_subdir/lang.opt; then |
7230 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
fd438373 | 7231 | all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt" |
1546bb64 | 7232 | fi |
349c3166 OH |
7233 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
7234 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
1546bb64 | 7235 | fi |
cc11cc9b | 7236 | all_languages="$all_languages $language" |
cc11cc9b | 7237 | all_compilers="$all_compilers $compilers" |
cc11cc9b | 7238 | all_outputs="$all_outputs $outputs" |
11a67599 | 7239 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
d7f09764 DN |
7240 | case ",$enable_languages," in |
7241 | *,lto,*) | |
7242 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
7243 | enable_lto=yes | |
7244 | AC_SUBST(enable_lto) | |
7245 | ;; | |
7246 | *) ;; | |
7247 | esac | |
571a8de5 DE |
7248 | done |
7249 | ||
cbc59f01 | 7250 | check_languages= |
cc11cc9b | 7251 | for language in $all_selected_languages |
cbc59f01 | 7252 | do |
cc11cc9b | 7253 | check_languages="$check_languages check-$language" |
cbc59f01 DD |
7254 | done |
7255 | ||
033eb567 DM |
7256 | selftest_languages= |
7257 | for language in $all_selected_languages | |
7258 | do | |
7259 | selftest_languages="$selftest_languages selftest-$language" | |
7260 | done | |
7261 | ||
62b81e45 | 7262 | # We link each language in with a set of hooks, reached indirectly via |
cc11cc9b | 7263 | # lang.${target}. Only do so for selected languages. |
571a8de5 DE |
7264 | |
7265 | rm -f Make-hooks | |
7266 | touch Make-hooks | |
bd97af06 | 7267 | target_list="all.cross start.encap rest.encap tags \ |
c3e80a16 EG |
7268 | install-common install-man install-info install-dvi install-pdf \ |
7269 | install-html dvi pdf html uninstall info man srcextra srcman srcinfo \ | |
2a4c0366 | 7270 | mostlyclean clean distclean maintainer-clean install-plugin" |
cc11cc9b | 7271 | |
571a8de5 DE |
7272 | for t in $target_list |
7273 | do | |
7274 | x= | |
cc11cc9b | 7275 | for lang in $all_selected_languages |
571a8de5 | 7276 | do |
cc11cc9b | 7277 | x="$x $lang.$t" |
571a8de5 DE |
7278 | done |
7279 | echo "lang.$t: $x" >> Make-hooks | |
7280 | done | |
7281 | ||
d326ebc9 JJ |
7282 | echo "ifeq (\$(DO_LINK_SERIALIZATION),)" >> Make-hooks |
7283 | echo "SERIAL_LIST =" >> Make-hooks | |
7284 | echo else >> Make-hooks | |
7285 | lang_cnt=0 | |
7286 | lang_list= | |
a774a6a2 | 7287 | prev=c |
d326ebc9 JJ |
7288 | serialization_languages=c |
7289 | for lang in $all_selected_languages | |
7290 | do | |
7291 | test $lang = c && continue | |
7292 | if test $lang = lto; then | |
7293 | serialization_languages="$serialization_languages lto1 lto2" | |
7294 | else | |
7295 | serialization_languages="$serialization_languages $lang" | |
7296 | fi | |
7297 | done | |
7298 | for lang in $serialization_languages | |
7299 | do | |
7300 | test $lang = c && continue | |
7301 | lang_cnt=`expr $lang_cnt + 1` | |
7302 | lang_list=" $prev$lang_list" | |
a774a6a2 | 7303 | prev=${lang} |
d326ebc9 JJ |
7304 | done |
7305 | echo "SERIAL_LIST = \$(wordlist \$(DO_LINK_SERIALIZATION),$lang_cnt,$lang_list)" >> Make-hooks | |
7306 | echo endif >> Make-hooks | |
7307 | echo "SERIAL_COUNT = `expr $lang_cnt + 1`" >> Make-hooks | |
7308 | echo "INDEX.c = 0" >> Make-hooks | |
7309 | lang_idx=1 | |
7310 | for lang in $serialization_languages | |
7311 | do | |
7312 | test $lang = c && continue | |
a774a6a2 | 7313 | echo "$lang.prev = \$(if \$(word $lang_cnt,\$(SERIAL_LIST)),\$(\$(word $lang_cnt,\$(SERIAL_LIST)).serial))" >> Make-hooks |
d326ebc9 JJ |
7314 | echo "INDEX.$lang = $lang_idx" >> Make-hooks |
7315 | lang_cnt=`expr $lang_cnt - 1` | |
7316 | lang_idx=`expr $lang_idx + 1` | |
7317 | done | |
7318 | ||
fd438373 MM |
7319 | # -------- |
7320 | # Option include files | |
7321 | # -------- | |
7322 | ||
7323 | ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk | |
7324 | option_includes="option-includes.mk" | |
7325 | AC_SUBST_FILE(option_includes) | |
7326 | ||
630327c3 NN |
7327 | # -------- |
7328 | # UNSORTED | |
7329 | # -------- | |
7330 | ||
cc06d68c | 7331 | # Create .gdbinit. |
296e46bd | 7332 | |
cc06d68c GP |
7333 | echo "dir ." > .gdbinit |
7334 | echo "dir ${srcdir}" >> .gdbinit | |
7335 | if test x$gdb_needs_out_file_path = xyes | |
7336 | then | |
7337 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
7338 | fi | |
7339 | if test "x$subdirs" != x; then | |
7340 | for s in $subdirs | |
7341 | do | |
7342 | echo "dir ${srcdir}/$s" >> .gdbinit | |
7343 | done | |
296e46bd | 7344 | fi |
cc06d68c | 7345 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
8dce4dbc | 7346 | echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit |
296e46bd | 7347 | |
3bd7b086 L |
7348 | # Put a breakpoint on __asan_report_error to help with debugging buffer |
7349 | # overflow. | |
7350 | case "$CFLAGS" in | |
7351 | *-fsanitize=address*) | |
7352 | echo "source ${srcdir}/gdbasan.in" >> .gdbinit | |
7353 | ;; | |
7354 | esac | |
7355 | ||
15c723f3 | 7356 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
d062c304 | 7357 | AC_SUBST(gcc_tooldir) |
4c112cda | 7358 | AC_SUBST(dollar) |
d062c304 | 7359 | |
2bbea3a6 RH |
7360 | # Find a directory in which to install a shared libgcc. |
7361 | ||
7362 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
b88ecf55 AS |
7363 | [AS_HELP_STRING([--enable-version-specific-runtime-libs], |
7364 | [specify that runtime libraries should be | |
7365 | installed in a compiler-specific directory])]) | |
2bbea3a6 | 7366 | |
46f18e7b RK |
7367 | # Substitute configuration variables |
7368 | AC_SUBST(subdirs) | |
8ac9d31f | 7369 | AC_SUBST(srcdir) |
46f18e7b | 7370 | AC_SUBST(all_compilers) |
e2500fed | 7371 | AC_SUBST(all_gtfiles) |
223bf296 | 7372 | AC_SUBST(all_lang_configurefrags) |
2ed26f6b | 7373 | AC_SUBST(all_lang_makefrags) |
9f3d1bc2 | 7374 | AC_SUBST(all_languages) |
cc11cc9b | 7375 | AC_SUBST(all_selected_languages) |
9f3d1bc2 BK |
7376 | AC_SUBST(build_exeext) |
7377 | AC_SUBST(build_install_headers_dir) | |
7378 | AC_SUBST(build_xm_file_list) | |
e22340b0 | 7379 | AC_SUBST(build_xm_include_list) |
11642c3a | 7380 | AC_SUBST(build_xm_defines) |
a0e527e3 | 7381 | AC_SUBST(build_file_translate) |
cbc59f01 | 7382 | AC_SUBST(check_languages) |
033eb567 | 7383 | AC_SUBST(selftest_languages) |
9f3d1bc2 | 7384 | AC_SUBST(cpp_install_dir) |
2ed26f6b ZW |
7385 | AC_SUBST(xmake_file) |
7386 | AC_SUBST(tmake_file) | |
aca600aa AS |
7387 | AC_SUBST(TM_ENDIAN_CONFIG) |
7388 | AC_SUBST(TM_MULTILIB_CONFIG) | |
7389 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
30500d84 | 7390 | AC_SUBST(extra_gcc_objs) |
9b91e436 KT |
7391 | AC_SUBST(user_headers_inc_next_pre) |
7392 | AC_SUBST(user_headers_inc_next_post) | |
9f3d1bc2 | 7393 | AC_SUBST(extra_headers_list) |
46f18e7b | 7394 | AC_SUBST(extra_objs) |
9f3d1bc2 | 7395 | AC_SUBST(extra_programs) |
9f3d1bc2 | 7396 | AC_SUBST(float_h_file) |
cc1e60ea | 7397 | AC_SUBST(gcc_config_arguments) |
9f3d1bc2 | 7398 | AC_SUBST(gcc_gxx_include_dir) |
17719d09 | 7399 | AC_SUBST(gcc_gxx_include_dir_add_sysroot) |
662b9c55 IS |
7400 | AC_SUBST(gcc_gxx_libcxx_include_dir) |
7401 | AC_SUBST(gcc_gxx_libcxx_include_dir_add_sysroot) | |
9f3d1bc2 | 7402 | AC_SUBST(host_exeext) |
46f18e7b | 7403 | AC_SUBST(host_xm_file_list) |
e22340b0 | 7404 | AC_SUBST(host_xm_include_list) |
11642c3a | 7405 | AC_SUBST(host_xm_defines) |
476d9098 | 7406 | AC_SUBST(out_host_hook_obj) |
9f3d1bc2 | 7407 | AC_SUBST(install) |
d7b42618 | 7408 | AC_SUBST(lang_opt_files) |
9f3d1bc2 | 7409 | AC_SUBST(lang_specs_files) |
3103b7db | 7410 | AC_SUBST(lang_tree_files) |
46f18e7b | 7411 | AC_SUBST(local_prefix) |
9f3d1bc2 BK |
7412 | AC_SUBST(md_file) |
7413 | AC_SUBST(objc_boehm_gc) | |
7414 | AC_SUBST(out_file) | |
7415 | AC_SUBST(out_object_file) | |
c49a6962 JM |
7416 | AC_SUBST(common_out_file) |
7417 | AC_SUBST(common_out_object_file) | |
9f3d1bc2 | 7418 | AC_SUBST(tm_file_list) |
e22340b0 | 7419 | AC_SUBST(tm_include_list) |
d5355cb2 | 7420 | AC_SUBST(tm_defines) |
11642c3a | 7421 | AC_SUBST(tm_p_file_list) |
e22340b0 | 7422 | AC_SUBST(tm_p_include_list) |
b4c522fa IB |
7423 | AC_SUBST(tm_d_file_list) |
7424 | AC_SUBST(tm_d_include_list) | |
e22340b0 ZW |
7425 | AC_SUBST(xm_file_list) |
7426 | AC_SUBST(xm_include_list) | |
3d9d2476 | 7427 | AC_SUBST(xm_defines) |
207bf79d | 7428 | AC_SUBST(use_gcc_stdint) |
aac69a49 NC |
7429 | AC_SUBST(c_target_objs) |
7430 | AC_SUBST(cxx_target_objs) | |
c776a6d0 | 7431 | AC_SUBST(fortran_target_objs) |
b4c522fa | 7432 | AC_SUBST(d_target_objs) |
11642c3a | 7433 | AC_SUBST(target_cpu_default) |
46f18e7b | 7434 | |
46f18e7b RK |
7435 | AC_SUBST_FILE(language_hooks) |
7436 | ||
7903cebc NN |
7437 | # Echo link setup. |
7438 | if test x${build} = x${host} ; then | |
7439 | if test x${host} = x${target} ; then | |
7440 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
7441 | else | |
7442 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
7443 | echo " from ${host} to ${target}." 1>&2 | |
7444 | fi | |
46f18e7b | 7445 | else |
7903cebc NN |
7446 | if test x${host} = x${target} ; then |
7447 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
7448 | echo " for ${target}." 1>&2 | |
7449 | else | |
7450 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
7451 | echo " from ${host} to ${target}." 1>&2 | |
7452 | fi | |
46f18e7b RK |
7453 | fi |
7454 | ||
6de9cd9a DN |
7455 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
7456 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
7457 | ||
e357a5e0 SP |
7458 | AC_ARG_VAR(ISLLIBS,[How to link isl]) |
7459 | AC_ARG_VAR(ISLINC,[How to find isl include files]) | |
eae1a5d4 RG |
7460 | if test "x${ISLLIBS}" != "x" ; then |
7461 | AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.]) | |
7462 | fi | |
f8bf9252 | 7463 | |
ddc8de03 | 7464 | GCC_ENABLE_PLUGINS |
68a607d8 DN |
7465 | AC_SUBST(pluginlibs) |
7466 | AC_SUBST(enable_plugin) | |
7467 | if test x"$enable_plugin" = x"yes"; then | |
7468 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
7469 | fi | |
7470 | ||
87e6d9dc | 7471 | |
459260ec DM |
7472 | # Enable --enable-host-shared |
7473 | AC_ARG_ENABLE(host-shared, | |
7474 | [AS_HELP_STRING([--enable-host-shared], | |
7475 | [build host code as shared libraries])], | |
7476 | [PICFLAG=-fPIC], [PICFLAG=]) | |
7477 | AC_SUBST(enable_host_shared) | |
7478 | AC_SUBST(PICFLAG) | |
7479 | ||
7480 | ||
87e6d9dc TB |
7481 | AC_ARG_ENABLE(libquadmath-support, |
7482 | [AS_HELP_STRING([--disable-libquadmath-support], | |
7483 | [disable libquadmath support for Fortran])], | |
7484 | ENABLE_LIBQUADMATH_SUPPORT=$enableval, | |
7485 | ENABLE_LIBQUADMATH_SUPPORT=yes) | |
7486 | if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then | |
7487 | AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1, | |
7488 | [Define to 1 to enable libquadmath support]) | |
7489 | fi | |
7490 | ||
7491 | ||
79bec923 ST |
7492 | # Specify what hash style to use by default. |
7493 | AC_ARG_WITH([linker-hash-style], | |
7494 | [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}], | |
7495 | [specify the linker hash style])], | |
7496 | [case x"$withval" in | |
7497 | xsysv) | |
7498 | LINKER_HASH_STYLE=sysv | |
7499 | ;; | |
7500 | xgnu) | |
7501 | LINKER_HASH_STYLE=gnu | |
7502 | ;; | |
7503 | xboth) | |
7504 | LINKER_HASH_STYLE=both | |
7505 | ;; | |
7506 | *) | |
7507 | AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style]) | |
7508 | ;; | |
7509 | esac], | |
7510 | [LINKER_HASH_STYLE='']) | |
7511 | if test x"${LINKER_HASH_STYLE}" != x; then | |
7512 | AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE", | |
7513 | [The linker hash style]) | |
7514 | fi | |
7515 | ||
899c78ae JJ |
7516 | # Specify what should be the default of -fdiagnostics-color option. |
7517 | AC_ARG_WITH([diagnostics-color], | |
7518 | [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}], | |
7519 | [specify the default of -fdiagnostics-color option | |
7520 | auto-if-env stands for -fdiagnostics-color=auto if | |
7521 | GCC_COLOR environment variable is present and | |
7522 | -fdiagnostics-color=never otherwise])], | |
7523 | [case x"$withval" in | |
7524 | xnever) | |
7525 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO | |
7526 | ;; | |
7527 | xauto) | |
7528 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO | |
7529 | ;; | |
7530 | xauto-if-env) | |
7531 | DIAGNOSTICS_COLOR_DEFAULT=-1 | |
7532 | ;; | |
7533 | xalways) | |
7534 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES | |
7535 | ;; | |
7536 | *) | |
7537 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color]) | |
7538 | ;; | |
7539 | esac], | |
7540 | [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO]) | |
7541 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT, | |
7542 | [The default for -fdiagnostics-color option]) | |
7543 | ||
458c8d64 BE |
7544 | # Specify what should be the default of -fdiagnostics-urls option. |
7545 | AC_ARG_WITH([diagnostics-urls], | |
7546 | [AC_HELP_STRING([--with-diagnostics-urls={never,auto,auto-if-env,always}], | |
7547 | [specify the default of -fdiagnostics-urls option | |
7548 | auto-if-env stands for -fdiagnostics-urls=auto if | |
7549 | GCC_URLS or TERM_URLS environment variable is present and | |
7550 | -fdiagnostics-urls=never otherwise])], | |
7551 | [case x"$withval" in | |
7552 | xnever) | |
7553 | DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_NO | |
7554 | ;; | |
7555 | xauto) | |
7556 | DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_AUTO | |
7557 | ;; | |
7558 | xauto-if-env) | |
7559 | DIAGNOSTICS_URLS_DEFAULT=-1 | |
7560 | ;; | |
7561 | xalways) | |
7562 | DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_YES | |
7563 | ;; | |
7564 | *) | |
7565 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-urls]) | |
7566 | ;; | |
7567 | esac], | |
7568 | [DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_AUTO]) | |
7569 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_URLS_DEFAULT, $DIAGNOSTICS_URLS_DEFAULT, | |
7570 | [The default for -fdiagnostics-urls option]) | |
7571 | ||
35485da9 | 7572 | # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit |
e53b6e56 | 7573 | # of jit/jit-playback.cc. |
001ddaa8 DM |
7574 | gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"` |
7575 | echo "gcc_driver_version: ${gcc_driver_version}" | |
35485da9 | 7576 | cat > gcc-driver-name.h <<EOF |
001ddaa8 | 7577 | #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}" |
35485da9 DM |
7578 | EOF |
7579 | ||
428b3812 L |
7580 | # Check whether --enable-default-pie was given. |
7581 | AC_ARG_ENABLE(default-pie, | |
7582 | [AS_HELP_STRING([--enable-default-pie], | |
7583 | [enable Position Independent Executable as default])], | |
7584 | enable_default_pie=$enableval, | |
7585 | enable_default_pie=no) | |
9a557138 | 7586 | if test x$enable_default_pie = xyes ; then |
428b3812 L |
7587 | AC_DEFINE(ENABLE_DEFAULT_PIE, 1, |
7588 | [Define if your target supports default PIE and it is enabled.]) | |
7589 | fi | |
7590 | AC_SUBST([enable_default_pie]) | |
7591 | ||
7592 | # Check if -fno-PIE works. | |
7593 | AC_CACHE_CHECK([for -fno-PIE option], | |
7594 | [gcc_cv_c_no_fpie], | |
fee22a80 L |
7595 | [saved_CXXFLAGS="$CXXFLAGS" |
7596 | CXXFLAGS="$CXXFLAGS -fno-PIE" | |
22e05272 | 7597 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
7598 | [gcc_cv_c_no_fpie=yes], |
7599 | [gcc_cv_c_no_fpie=no]) | |
fee22a80 | 7600 | CXXFLAGS="$saved_CXXFLAGS"]) |
428b3812 L |
7601 | if test "$gcc_cv_c_no_fpie" = "yes"; then |
7602 | NO_PIE_CFLAGS="-fno-PIE" | |
7603 | fi | |
7604 | AC_SUBST([NO_PIE_CFLAGS]) | |
7605 | ||
7606 | # Check if -no-pie works. | |
7607 | AC_CACHE_CHECK([for -no-pie option], | |
7608 | [gcc_cv_no_pie], | |
7609 | [saved_LDFLAGS="$LDFLAGS" | |
7610 | LDFLAGS="$LDFLAGS -no-pie" | |
22e05272 | 7611 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
7612 | [gcc_cv_no_pie=yes], |
7613 | [gcc_cv_no_pie=no]) | |
7614 | LDFLAGS="$saved_LDFLAGS"]) | |
7615 | if test "$gcc_cv_no_pie" = "yes"; then | |
7616 | NO_PIE_FLAG="-no-pie" | |
7617 | fi | |
7618 | AC_SUBST([NO_PIE_FLAG]) | |
7619 | ||
7e9c5bb0 L |
7620 | # Enable Intel CET on Intel CET enabled host if jit is enabled. |
7621 | GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) | |
7622 | case x$enable_languages in | |
7623 | *jit*) | |
7624 | ;; | |
7625 | *) | |
7626 | CET_HOST_FLAGS= | |
7627 | ;; | |
7628 | esac | |
7629 | AC_SUBST(CET_HOST_FLAGS) | |
7630 | ||
6de59c8a IE |
7631 | # Check linker supports '-z bndplt' |
7632 | ld_bndplt_support=no | |
7633 | AC_MSG_CHECKING(linker -z bndplt option) | |
7634 | if test x"$ld_is_gold" = xno; then | |
7635 | if test $in_tree_ld = yes ; then | |
7636 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
7637 | ld_bndplt_support=yes | |
7638 | fi | |
7639 | elif test x$gcc_cv_ld != x; then | |
7640 | # Check if linker supports -a bndplt option | |
8dc877eb | 7641 | if $gcc_cv_ld --help 2>&1 | grep -- '-z bndplt' > /dev/null; then |
6de59c8a IE |
7642 | ld_bndplt_support=yes |
7643 | fi | |
7644 | fi | |
7645 | fi | |
7646 | if test x"$ld_bndplt_support" = xyes; then | |
7647 | AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1, | |
7648 | [Define if your linker supports -z bndplt]) | |
7649 | fi | |
7650 | AC_MSG_RESULT($ld_bndplt_support) | |
7651 | ||
7e495577 AI |
7652 | # Check linker supports '--push-state'/'--pop-state' |
7653 | ld_pushpopstate_support=no | |
7654 | AC_MSG_CHECKING(linker --push-state/--pop-state options) | |
7655 | if test x"$ld_is_gold" = xno; then | |
7656 | if test $in_tree_ld = yes ; then | |
7657 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
7658 | ld_pushpopstate_support=yes | |
7659 | fi | |
7660 | elif test x$gcc_cv_ld != x; then | |
7661 | # Check if linker supports --push-state/--pop-state options | |
8dc877eb | 7662 | if $gcc_cv_ld --help 2>&1 | grep -- '--push-state' > /dev/null; then |
7e495577 AI |
7663 | ld_pushpopstate_support=yes |
7664 | fi | |
7665 | fi | |
7666 | fi | |
7667 | if test x"$ld_pushpopstate_support" = xyes; then | |
7668 | AC_DEFINE(HAVE_LD_PUSHPOPSTATE_SUPPORT, 1, | |
7669 | [Define if your linker supports --push-state/--pop-state]) | |
7670 | fi | |
7671 | AC_MSG_RESULT($ld_pushpopstate_support) | |
7672 | ||
a5dd6b69 MH |
7673 | # On s390, float_t has historically been statically defined as double for no |
7674 | # good reason. To comply with the C standard in the light of this definition, | |
7675 | # gcc has evaluated float expressions in double precision when in | |
7676 | # standards-compatible mode or when given -fexcess-precision=standard. To enable | |
7677 | # a smooth transition towards the new model used by most architectures, where | |
7678 | # gcc describes its behavior via the macro __FLT_EVAL_METHOD__ and glibc derives | |
7679 | # float_t from that, this behavior can be configured with | |
7680 | # --enable-s390-excess-float-precision. When given as enabled, that flag selects | |
33f92509 MH |
7681 | # the old model. When omitted, native builds and cross compiles that have target |
7682 | # libc headers will detect whether libc clamps float_t to double and in that | |
7683 | # case maintain the old model. Otherwise, they will default to the new model. | |
a5dd6b69 MH |
7684 | AC_ARG_ENABLE(s390-excess-float-precision, |
7685 | [AS_HELP_STRING([--enable-s390-excess-float-precision], | |
7686 | [on s390 targets, evaluate float with double precision | |
7687 | when in standards-conforming mode])], | |
7688 | [],[enable_s390_excess_float_precision=auto]) | |
7689 | ||
7690 | case $target in | |
7691 | s390*-linux*) | |
33f92509 MH |
7692 | if test x"$enable_s390_excess_float_precision" = xauto; then |
7693 | # Can we autodetect the behavior of the target libc? | |
7694 | if test "$target" = "$host" -a "$host" = "$build"; then | |
7695 | enable_s390_excess_float_precision=autodetect | |
7696 | elif test "x$with_headers" != xno; then | |
7697 | # cross build. are target headers available? | |
7698 | # carefully coerce the build-system compiler to use target headers | |
7699 | saved_CXXFLAGS="$CXXFLAGS" | |
47abe2ab MH |
7700 | fixed_XGCC_FLAGS_FOR_TARGET=`echo "$XGCC_FLAGS_FOR_TARGET" | sed 's/-B/-idirafter/g'` |
7701 | CROSS_TEST_CXXFLAGS="-nostdinc $fixed_XGCC_FLAGS_FOR_TARGET" | |
33f92509 MH |
7702 | CXXFLAGS="$CROSS_TEST_CXXFLAGS" |
7703 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
7704 | #include <math.h> | |
7705 | ]])], [enable_s390_excess_float_precision=autodetect], []) | |
7706 | CXXFLAGS="$saved_CXXFLAGS" | |
7707 | fi | |
7708 | ||
7709 | if test x"$enable_s390_excess_float_precision" = xautodetect; then | |
7710 | saved_CXXFLAGS="$CXXFLAGS" | |
7711 | if ! test "$target" = "$host" -a "$host" = "$build"; then | |
7712 | CXXFLAGS="$CROSS_TEST_CXXFLAGS" | |
7713 | unset CROSS_TEST_CXXFLAGS | |
7714 | fi | |
7715 | AC_CACHE_CHECK([for glibc clamping float_t to double], | |
7716 | gcc_cv_float_t_clamped_to_double, [ | |
7717 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
a5dd6b69 MH |
7718 | #define __FLT_EVAL_METHOD__ 0 |
7719 | #include <math.h> | |
33f92509 MH |
7720 | int dummy[sizeof(float_t) == sizeof(double) ? 1 : -1]; |
7721 | ]])], | |
7722 | [gcc_cv_float_t_clamped_to_double=yes], | |
7723 | [gcc_cv_float_t_clamped_to_double=no])]) | |
7724 | CXXFLAGS="$saved_CXXFLAGS" | |
7725 | enable_s390_excess_float_precision="$gcc_cv_float_t_clamped_to_double" | |
7726 | else | |
7727 | # no way to detect behavior of target libc, default to new model | |
7728 | enable_s390_excess_float_precision=no | |
a5dd6b69 MH |
7729 | fi |
7730 | fi | |
7731 | ||
7732 | GCC_TARGET_TEMPLATE(ENABLE_S390_EXCESS_FLOAT_PRECISION) | |
7733 | if test x"$enable_s390_excess_float_precision" = xyes; then | |
7734 | AC_DEFINE(ENABLE_S390_EXCESS_FLOAT_PRECISION, 1, | |
7735 | [Define to enable evaluating float expressions with double precision in | |
7736 | standards-compatible mode on s390 targets.]) | |
7737 | fi | |
7738 | ;; | |
7739 | esac | |
7740 | ||
46f18e7b RK |
7741 | # Configure the subdirectories |
7742 | # AC_CONFIG_SUBDIRS($subdirs) | |
7743 | ||
7744 | # Create the Makefile | |
5891b37d | 7745 | # and configure language subdirectories |
914c5af7 NN |
7746 | AC_CONFIG_FILES($all_outputs) |
7747 | ||
7748 | AC_CONFIG_COMMANDS([default], | |
cdcc6a01 | 7749 | [ |
f1faaabd NN |
7750 | case ${CONFIG_HEADERS} in |
7751 | *auto-host.h:config.in*) | |
7752 | echo > cstamp-h ;; | |
cdcc6a01 | 7753 | esac |
2ed26f6b | 7754 | # Make sure all the subdirs exist. |
c49a6962 | 7755 | for d in $subdirs doc build common c-family |
2ed26f6b | 7756 | do |
2ed26f6b | 7757 | test -d $d || mkdir $d |
2ed26f6b | 7758 | done |
0d24f4d1 | 7759 | ], |
35f06ae4 | 7760 | [subdirs='$subdirs']) |
914c5af7 | 7761 | AC_OUTPUT |
fd438373 | 7762 |