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ca9bc441 | 1 | # configure.ac for GCC |
46f18e7b RK |
2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
a5544970 | 4 | # Copyright (C) 1997-2019 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 NN |
26 | AC_INIT |
27 | AC_CONFIG_SRCDIR(tree.c) | |
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 | ||
34a86c2b | 231 | AC_ARG_WITH(cpp_install_dir, |
b88ecf55 AS |
232 | [AC_HELP_STRING([--with-cpp-install-dir=DIR], |
233 | [install the user visible C preprocessor in DIR | |
234 | (relative to PREFIX) as well as PREFIX/bin])], | |
34a86c2b NN |
235 | [if test x$withval = xyes; then |
236 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
237 | elif test x$withval != xno; then | |
238 | cpp_install_dir=$withval | |
239 | fi]) | |
240 | ||
51b9ff45 KC |
241 | # We would like to our source tree to be readonly. However when releases or |
242 | # pre-releases are generated, the flex/bison generated files as well as the | |
243 | # various formats of manuals need to be included along with the rest of the | |
244 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
245 | # just that. | |
246 | ||
03787dfd KC |
247 | AC_MSG_CHECKING([whether to place generated files in the source directory]) |
248 | dnl generated-files-in-srcdir is disabled by default | |
249 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
b88ecf55 AS |
250 | [AS_HELP_STRING([--enable-generated-files-in-srcdir], |
251 | [put copies of generated files in source dir | |
252 | intended for creating source tarballs for users | |
253 | without texinfo bison or flex])], | |
03787dfd KC |
254 | generated_files_in_srcdir=$enableval, |
255 | generated_files_in_srcdir=no) | |
256 | ||
257 | AC_MSG_RESULT($generated_files_in_srcdir) | |
258 | ||
259 | if test "$generated_files_in_srcdir" = "yes"; then | |
260 | GENINSRC='' | |
03787dfd KC |
261 | else |
262 | GENINSRC='#' | |
03787dfd KC |
263 | fi |
264 | AC_SUBST(GENINSRC) | |
51b9ff45 | 265 | |
34a86c2b NN |
266 | # ------------------- |
267 | # Find default linker | |
268 | # ------------------- | |
46f18e7b RK |
269 | |
270 | # With GNU ld | |
271 | AC_ARG_WITH(gnu-ld, | |
b88ecf55 | 272 | [AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])], |
df6faf79 JW |
273 | gnu_ld_flag="$with_gnu_ld", |
274 | gnu_ld_flag=no) | |
46f18e7b | 275 | |
eb89c82f IS |
276 | case $target in |
277 | *darwin*) ld64_flag=yes;; # Darwin can only use a ld64-compatible linker. | |
278 | *) ld64_flag=no;; | |
279 | esac | |
280 | ||
ab339d62 AO |
281 | # With pre-defined ld |
282 | AC_ARG_WITH(ld, | |
b88ecf55 | 283 | [AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])], |
3ccc3a56 AO |
284 | DEFAULT_LINKER="$with_ld") |
285 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
286 | if test ! -x "$DEFAULT_LINKER"; then | |
99c012a8 | 287 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
e154a394 | 288 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 | 289 | gnu_ld_flag=yes |
eb89c82f IS |
290 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep ld64- > /dev/null; then |
291 | ld64_flag=yes | |
ab339d62 | 292 | fi |
119d24d1 KG |
293 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
294 | [Define to enable the use of a default linker.]) | |
ab339d62 AO |
295 | fi |
296 | ||
34a86c2b NN |
297 | AC_MSG_CHECKING([whether a default linker was specified]) |
298 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
299 | if test x"$gnu_ld_flag" = x"no"; then | |
300 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
301 | else | |
302 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
303 | fi | |
304 | else | |
305 | AC_MSG_RESULT(no) | |
306 | fi | |
307 | ||
d594623a L |
308 | # With demangler in GNU ld |
309 | AC_ARG_WITH(demangler-in-ld, | |
b88ecf55 | 310 | [AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])], |
d594623a | 311 | demangler_in_ld="$with_demangler_in_ld", |
df45fc34 | 312 | demangler_in_ld=yes) |
d594623a | 313 | |
34a86c2b NN |
314 | # ---------------------- |
315 | # Find default assembler | |
316 | # ---------------------- | |
317 | ||
46f18e7b RK |
318 | # With GNU as |
319 | AC_ARG_WITH(gnu-as, | |
b88ecf55 | 320 | [AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])], |
df6faf79 JW |
321 | gas_flag="$with_gnu_as", |
322 | gas_flag=no) | |
46f18e7b | 323 | |
ab339d62 | 324 | AC_ARG_WITH(as, |
b88ecf55 | 325 | [AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])], |
3ccc3a56 AO |
326 | DEFAULT_ASSEMBLER="$with_as") |
327 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
328 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
99c012a8 | 329 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
e154a394 | 330 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
331 | gas_flag=yes |
332 | fi | |
119d24d1 KG |
333 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
334 | [Define to enable the use of a default assembler.]) | |
3ccc3a56 | 335 | fi |
ab339d62 | 336 | |
34a86c2b NN |
337 | AC_MSG_CHECKING([whether a default assembler was specified]) |
338 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
339 | if test x"$gas_flag" = x"no"; then | |
340 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
4e88d51b | 341 | else |
34a86c2b | 342 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
4e88d51b | 343 | fi |
34a86c2b NN |
344 | else |
345 | AC_MSG_RESULT(no) | |
4e88d51b | 346 | fi |
46f18e7b | 347 | |
34a86c2b NN |
348 | # --------------- |
349 | # Find C compiler | |
350 | # --------------- | |
13c22933 | 351 | |
426ca3ca RO |
352 | # If a non-executable a.out is present (e.g. created by GNU as above even if |
353 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
354 | # file, even when creating an executable, so an execution test fails. | |
355 | # Remove possible default executable files to avoid this. | |
356 | # | |
357 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
358 | # Autoconf includes it. | |
359 | rm -f a.out a.exe b.out | |
360 | ||
414d23ae HPN |
361 | # Find the native compiler |
362 | AC_PROG_CC | |
00020c16 | 363 | AC_PROG_CXX |
e8679fd5 | 364 | ACX_PROG_GNAT([-I"$srcdir"/ada/libgnat]) |
3d4e720a | 365 | |
13ccfea8 JM |
366 | # Do configure tests with the C++ compiler, since that's what we build with. |
367 | AC_LANG(C++) | |
368 | ||
ec6c7392 PB |
369 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer |
370 | # optimizations to be activated explicitly by the toplevel. | |
371 | case "$CC" in | |
372 | */prev-gcc/xgcc*) ;; | |
dadbefd3 JJ |
373 | *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` |
374 | CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` ;; | |
ec6c7392 PB |
375 | esac |
376 | AC_SUBST(CFLAGS) | |
8bf4ee34 | 377 | AC_SUBST(CXXFLAGS) |
ec6c7392 | 378 | |
e3aa9eba RO |
379 | # Determine PICFLAG for target gnatlib. |
380 | GCC_PICFLAG_FOR_TARGET | |
381 | AC_SUBST(PICFLAG_FOR_TARGET) | |
382 | ||
73458fb7 NN |
383 | # ------------------------- |
384 | # Check C compiler features | |
385 | # ------------------------- | |
386 | ||
60d26958 | 387 | AC_USE_SYSTEM_EXTENSIONS |
34a86c2b NN |
388 | AC_PROG_CPP |
389 | AC_C_INLINE | |
34a86c2b | 390 | |
480767a9 ILT |
391 | AC_SYS_LARGEFILE |
392 | ||
34a86c2b | 393 | # sizeof(char) is 1 by definition. |
bf3b7cd3 JD |
394 | AC_CHECK_SIZEOF(void *) |
395 | AC_CHECK_SIZEOF(short) | |
396 | AC_CHECK_SIZEOF(int) | |
397 | AC_CHECK_SIZEOF(long) | |
5ec1c5e6 | 398 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
7c2a2dbf | 399 | GCC_STDINT_TYPES |
edf6ddf6 RB |
400 | if test x"$ac_cv_c_uint64_t" = x"no" -o x"$ac_cv_c_int64_t" = x"no"; then |
401 | AC_MSG_ERROR([uint64_t or int64_t not found]) | |
402 | fi | |
34a86c2b | 403 | |
35987ae9 | 404 | # check what underlying integer type int64_t uses |
35987ae9 RB |
405 | AC_CACHE_CHECK(for int64_t underlying type, ac_cv_int64_t_type, [ |
406 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
407 | #ifdef HAVE_STDINT_H | |
408 | #include <stdint.h> | |
409 | #endif | |
410 | template <typename T> struct X { }; | |
411 | template <> | |
412 | struct X<long> { typedef long t; }; | |
413 | ]], [[X<int64_t>::t x;]])],[ac_cv_int64_t_type=long],[ac_cv_int64_t_type="long long"])]) | |
414 | if test "$ac_cv_int64_t_type" = "long"; then | |
415 | AC_DEFINE(INT64_T_IS_LONG, 1, | |
416 | [Define if int64_t uses long as underlying type.]) | |
417 | else | |
418 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
419 | #ifdef HAVE_STDINT_H | |
420 | #include <stdint.h> | |
421 | #endif | |
422 | template <typename T> struct X { }; | |
423 | template <> | |
424 | struct X<long long> { typedef long long t; }; | |
425 | ]], [[X<int64_t>::t x;]])],[],[AC_MSG_ERROR([error verifying int64_t uses long long])]) | |
426 | fi | |
35987ae9 | 427 | |
3dde4d65 MM |
428 | AC_CACHE_CHECK(for std::swap in <utility>, ac_cv_std_swap_in_utility, [ |
429 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
430 | #include <utility> | |
431 | ]], [[int a, b; std::swap(a,b);]])],[ac_cv_std_swap_in_utility=yes],[ac_cv_std_swap_in_utility=no])]) | |
432 | if test $ac_cv_std_swap_in_utility = yes; then | |
433 | AC_DEFINE(HAVE_SWAP_IN_UTILITY, 1, | |
434 | [Define if <utility> defines std::swap.]) | |
435 | fi | |
436 | ||
4c0cca18 UW |
437 | # Check whether compiler is affected by placement new aliasing bug (PR 29286). |
438 | # If the host compiler is affected by the bug, and we build with optimization | |
439 | # enabled (which happens e.g. when cross-compiling), the pool allocator may | |
440 | # get miscompiled. Use -fno-strict-aliasing to work around this problem. | |
441 | # Since there is no reliable feature check for the presence of this bug, | |
442 | # we simply use a GCC version number check. (This should never trigger for | |
443 | # stages 2 or 3 of a native bootstrap.) | |
444 | aliasing_flags= | |
445 | if test "$GCC" = yes; then | |
446 | saved_CXXFLAGS="$CXXFLAGS" | |
447 | ||
448 | # The following test compilation will succeed if and only if $CXX accepts | |
449 | # -fno-strict-aliasing *and* is older than GCC 4.3. | |
450 | CXXFLAGS="$CXXFLAGS -fno-strict-aliasing" | |
451 | AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug]) | |
22e05272 | 452 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
4c0cca18 UW |
453 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
454 | #error compiler not affected by placement new aliasing bug | |
455 | #endif | |
22e05272 | 456 | ])], |
4c0cca18 UW |
457 | [AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'], |
458 | [AC_MSG_RESULT([no])]) | |
459 | ||
460 | CXXFLAGS="$saved_CXXFLAGS" | |
461 | fi | |
462 | AC_SUBST(aliasing_flags) | |
35987ae9 RB |
463 | |
464 | ||
465 | ||
34a86c2b NN |
466 | # --------------------- |
467 | # Warnings and checking | |
468 | # --------------------- | |
469 | ||
b5472e1d NN |
470 | # Check $CC warning features (if it's GCC). |
471 | # We want to use -pedantic, but we don't want warnings about | |
472 | # * 'long long' | |
473 | # * variadic macros | |
89a42ac8 | 474 | # * overlong strings |
25339f10 | 475 | # * C++11 narrowing conversions in { } |
b5472e1d NN |
476 | # So, we only use -pedantic if we can disable those warnings. |
477 | ||
1652c6da JM |
478 | # In stage 1, disable -Wformat warnings from old GCCs about new % codes |
479 | AC_ARG_ENABLE(build-format-warnings, | |
480 | AS_HELP_STRING([--disable-build-format-warnings],[don't use -Wformat while building GCC]), | |
481 | [],[enable_build_format_warnings=yes]) | |
482 | AS_IF([test $enable_build_format_warnings = no], | |
483 | [wf_opt=-Wno-format],[wf_opt=]) | |
ff771de3 | 484 | ACX_PROG_CXX_WARNING_OPTS( |
ec9d5ad1 | 485 | m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings ], |
0ecf545c MS |
486 | [-Wcast-qual -Wno-error=format-diag $wf_opt])), |
487 | [loose_warn]) | |
f6e377f8 | 488 | ACX_PROG_CC_WARNING_OPTS( |
0ecf545c MS |
489 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ], |
490 | [-Wno-error=format-diag])), [c_loose_warn]) | |
ff771de3 | 491 | ACX_PROG_CXX_WARNING_OPTS( |
ec9d5ad1 UB |
492 | m4_quote(m4_do([-Wmissing-format-attribute ], |
493 | [-Woverloaded-virtual])), [strict_warn]) | |
00020c16 ILT |
494 | ACX_PROG_CC_WARNING_OPTS( |
495 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
ff771de3 | 496 | ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC( |
75c9cbe3 AS |
497 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
498 | [-Wno-overlength-strings])), [strict_warn]) | |
ff771de3 | 499 | ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
3bbd5a19 PB |
500 | |
501 | # The above macros do nothing if the compiler is not GCC. However, the | |
00020c16 ILT |
502 | # Makefile has more goo to add other flags, so these variables are used |
503 | # to enable warnings only for GCC. | |
414d23ae | 504 | warn_cflags= |
00020c16 | 505 | warn_cxxflags= |
414d23ae HPN |
506 | if test "x$GCC" = "xyes"; then |
507 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
00020c16 | 508 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
414d23ae HPN |
509 | fi |
510 | AC_SUBST(warn_cflags) | |
00020c16 | 511 | AC_SUBST(warn_cxxflags) |
414d23ae | 512 | |
e9411247 MM |
513 | # Disable exceptions and RTTI if building with g++ |
514 | ACX_PROG_CC_WARNING_OPTS( | |
3d47a53a UB |
515 | m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])), |
516 | [noexception_flags]) | |
e9411247 | 517 | |
8b1f719a | 518 | # Enable expensive internal checks |
a1286ef5 ZW |
519 | is_release= |
520 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
521 | is_release=yes | |
522 | fi | |
dd859b8a | 523 | |
a494747c | 524 | AC_ARG_ENABLE(checking, |
b88ecf55 AS |
525 | [AS_HELP_STRING([[--enable-checking[=LIST]]], |
526 | [enable expensive run-time checks. With LIST, | |
527 | enable only specific categories of checks. | |
528 | Categories are: yes,no,all,none,release. | |
7db11a5a | 529 | Flags are: assert,df,extra,fold,gc,gcac,gimple,misc, |
b88ecf55 | 530 | rtlflag,rtl,runtime,tree,valgrind,types])], |
e1bbfc5c NS |
531 | [ac_checking_flags="${enableval}"],[ |
532 | # Determine the default checks. | |
533 | if test x$is_release = x ; then | |
7db11a5a | 534 | ac_checking_flags=yes,extra |
e1bbfc5c NS |
535 | else |
536 | ac_checking_flags=release | |
537 | fi]) | |
e1bbfc5c | 538 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
04c3028a | 539 | for check in release $ac_checking_flags |
e1bbfc5c NS |
540 | do |
541 | case $check in | |
cdce5c16 | 542 | # these set all the flags to specific states |
0d475361 | 543 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
7db11a5a | 544 | ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ; |
726a989a | 545 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
232b67d9 | 546 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c | 547 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
1b24a790 | 548 | ac_types_checking=1 ;; |
3089f8b5 | 549 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 550 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 551 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
232b67d9 | 552 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
7e98624c RG |
553 | ac_tree_checking= ; ac_valgrind_checking= ; |
554 | ac_types_checking= ;; | |
3089f8b5 | 555 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
7db11a5a | 556 | ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ; |
726a989a | 557 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
cdce5c16 | 558 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c RG |
559 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
560 | ac_types_checking=1 ;; | |
3089f8b5 | 561 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 562 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 563 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
cdce5c16 | 564 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
7e98624c RG |
565 | ac_tree_checking= ; ac_valgrind_checking= ; |
566 | ac_types_checking= ;; | |
cdce5c16 | 567 | # these enable particular checks |
e1bbfc5c | 568 | assert) ac_assert_checking=1 ;; |
7db11a5a JJ |
569 | df) ac_df_checking=1 ;; |
570 | extra) ac_extra_checking=1 ;; | |
e1bbfc5c NS |
571 | fold) ac_fold_checking=1 ;; |
572 | gc) ac_gc_checking=1 ;; | |
573 | gcac) ac_gc_always_collect=1 ;; | |
726a989a | 574 | gimple) ac_gimple_checking=1 ;; |
e1bbfc5c | 575 | misc) ac_checking=1 ;; |
e1bbfc5c | 576 | rtl) ac_rtl_checking=1 ;; |
cdce5c16 | 577 | rtlflag) ac_rtlflag_checking=1 ;; |
b53ef395 | 578 | runtime) ac_runtime_checking=1 ;; |
e1bbfc5c | 579 | tree) ac_tree_checking=1 ;; |
7e98624c | 580 | types) ac_types_checking=1 ;; |
cdce5c16 | 581 | valgrind) ac_valgrind_checking=1 ;; |
e1bbfc5c NS |
582 | *) AC_MSG_ERROR(unknown check category $check) ;; |
583 | esac | |
584 | done | |
585 | IFS="$ac_save_IFS" | |
586 | ||
204250d2 | 587 | nocommon_flag="" |
119d24d1 | 588 | if test x$ac_checking != x ; then |
b06f87c7 BE |
589 | AC_DEFINE(CHECKING_P, 1, |
590 | [Define to 0/1 if you want more run-time sanity checks. This one gets a grab | |
591 | bag of miscellaneous but relatively cheap checks.]) | |
204250d2 | 592 | nocommon_flag=-fno-common |
7ec491c0 MM |
593 | else |
594 | AC_DEFINE(CHECKING_P, 0) | |
119d24d1 | 595 | fi |
204250d2 | 596 | AC_SUBST(nocommon_flag) |
b06f87c7 BE |
597 | if test x$ac_extra_checking != x ; then |
598 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 1, | |
599 | [Define to 0/1 if you want extra run-time checking that might affect code | |
600 | generation.]) | |
601 | else | |
602 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 0) | |
603 | fi | |
3089f8b5 PB |
604 | if test x$ac_df_checking != x ; then |
605 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
606 | [Define if you want more run-time sanity checks for dataflow.]) | |
607 | fi | |
06c37c96 NS |
608 | if test x$ac_assert_checking != x ; then |
609 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
610 | [Define if you want assertions enabled. This is a cheap check.]) | |
611 | fi | |
726a989a RB |
612 | if test x$ac_gimple_checking != x ; then |
613 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
614 | [Define if you want operations on GIMPLE (the basic data structure of | |
615 | the high-level optimizers) to be checked for dynamic type safety at | |
616 | runtime. This is moderately expensive.]) | |
617 | fi | |
232b67d9 | 618 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
b53ef395 NS |
619 | if test x$ac_runtime_checking != x ; then |
620 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
621 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
622 | fi | |
119d24d1 KG |
623 | if test x$ac_tree_checking != x ; then |
624 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
625 | [Define if you want all operations on trees (the basic data | |
626 | structure of the front ends) to be checked for dynamic type safety | |
8d2ccbd2 | 627 | at runtime. This is moderately expensive. |
13f05fd0 | 628 | ]) |
7cb9fd07 | 629 | TREECHECKING=yes |
119d24d1 | 630 | fi |
7e98624c RG |
631 | if test x$ac_types_checking != x ; then |
632 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
633 | [Define if you want all gimple types to be verified after gimplifiation. | |
634 | This is cheap. | |
635 | ]) | |
636 | fi | |
7cb9fd07 | 637 | AC_SUBST(TREECHECKING) |
119d24d1 KG |
638 | if test x$ac_rtl_checking != x ; then |
639 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
640 | [Define if you want all operations on RTL (the basic data structure | |
641 | of the optimizer and back end) to be checked for dynamic type safety | |
642 | at runtime. This is quite expensive.]) | |
643 | fi | |
4c76f856 JJ |
644 | if test x$ac_rtlflag_checking != x ; then |
645 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
646 | [Define if you want RTL flag accesses to be checked against the RTL | |
647 | codes that are supported for each access macro. This is relatively | |
648 | cheap.]) | |
649 | fi | |
119d24d1 KG |
650 | if test x$ac_gc_checking != x ; then |
651 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
652 | [Define if you want the garbage collector to do object poisoning and | |
653 | other memory allocation checks. This is quite expensive.]) | |
654 | fi | |
655 | if test x$ac_gc_always_collect != x ; then | |
656 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
657 | [Define if you want the garbage collector to operate in maximally | |
658 | paranoid mode, validating the entire heap and collecting garbage at | |
659 | every opportunity. This is extremely expensive.]) | |
660 | fi | |
5dfa45d0 JJ |
661 | if test x$ac_fold_checking != x ; then |
662 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
663 | [Define if you want fold checked that it never destructs its argument. | |
664 | This is quite expensive.]) | |
665 | fi | |
414d23ae HPN |
666 | valgrind_path_defines= |
667 | valgrind_command= | |
6938ec6c NN |
668 | |
669 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
670 | dnl # an if statement. This was the source of very frustrating bugs | |
671 | dnl # in converting to autoconf 2.5x! | |
672 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
673 | ||
279a935f RB |
674 | # It is certainly possible that there's valgrind but no valgrind.h. |
675 | # GCC relies on making annotations so we must have both. | |
676 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
677 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
678 | [[#include <valgrind/memcheck.h> | |
a207b594 HPN |
679 | #ifndef VALGRIND_DISCARD |
680 | #error VALGRIND_DISCARD not defined | |
f04f1d2c | 681 | #endif]])], |
a207b594 HPN |
682 | [gcc_cv_header_valgrind_memcheck_h=yes], |
683 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
279a935f RB |
684 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) |
685 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
686 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
687 | [[#include <memcheck.h> | |
14011ca4 AJ |
688 | #ifndef VALGRIND_DISCARD |
689 | #error VALGRIND_DISCARD not defined | |
f04f1d2c KC |
690 | #endif]])], |
691 | [gcc_cv_header_memcheck_h=yes], | |
692 | [gcc_cv_header_memcheck_h=no]) | |
279a935f RB |
693 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
694 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
695 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
696 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
697 | fi | |
698 | if test $gcc_cv_header_memcheck_h = yes; then | |
699 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
700 | [Define if valgrind's memcheck.h header is installed.]) | |
701 | fi | |
702 | ||
703 | if test x$ac_valgrind_checking != x ; then | |
414d23ae HPN |
704 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
705 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a207b594 HPN |
706 | if test "x$valgrind_path" = "x" \ |
707 | || (test $have_valgrind_h = no \ | |
708 | && test $gcc_cv_header_memcheck_h = no \ | |
709 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
710 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
414d23ae HPN |
711 | fi |
712 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
713 | valgrind_command="$valgrind_path -q" | |
714 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
715 | [Define if you want to run subprograms and generated programs | |
716 | through valgrind (a memory checker). This is extremely expensive.]) | |
717 | fi | |
718 | AC_SUBST(valgrind_path_defines) | |
719 | AC_SUBST(valgrind_command) | |
51d0e20c | 720 | |
22aa533e NS |
721 | # Enable code coverage collection |
722 | AC_ARG_ENABLE(coverage, | |
b88ecf55 AS |
723 | [AS_HELP_STRING([[--enable-coverage[=LEVEL]]], |
724 | [enable compiler's code coverage collection. | |
725 | Use to measure compiler performance and locate | |
726 | unused parts of the compiler. With LEVEL, specify | |
727 | optimization. Values are opt, noopt, | |
728 | default is noopt])], | |
22aa533e | 729 | [case "${enableval}" in |
6dd297da | 730 | yes|noopt) |
9879232c | 731 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" |
6dd297da NN |
732 | ;; |
733 | opt) | |
9879232c | 734 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" |
6dd297da NN |
735 | ;; |
736 | no) | |
737 | # a.k.a. --disable-coverage | |
738 | coverage_flags="" | |
739 | ;; | |
740 | *) | |
741 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
742 | ;; | |
22aa533e | 743 | esac], |
2043c38e | 744 | [coverage_flags=""]) |
22aa533e NS |
745 | AC_SUBST(coverage_flags) |
746 | ||
439a7e54 | 747 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
b88ecf55 AS |
748 | [AS_HELP_STRING([--enable-gather-detailed-mem-stats], |
749 | [enable detailed memory allocation stats gathering])], [], | |
439a7e54 | 750 | [enable_gather_detailed_mem_stats=no]) |
7aa6d18a SB |
751 | gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi` |
752 | AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats, | |
753 | [Define to enable detailed memory allocation stats gathering.]) | |
439a7e54 | 754 | |
279a935f RB |
755 | AC_ARG_ENABLE(valgrind-annotations, |
756 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
757 | [enable valgrind runtime interaction])], [], | |
758 | [enable_valgrind_annotations=no]) | |
759 | if test x$enable_valgrind_annotations != xno \ | |
760 | || test x$ac_valgrind_checking != x; then | |
761 | if (test $have_valgrind_h = no \ | |
762 | && test $gcc_cv_header_memcheck_h = no \ | |
763 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
764 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
765 | fi | |
766 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
767 | [Define to get calls to the valgrind runtime enabled.]) | |
768 | fi | |
769 | ||
73458fb7 NN |
770 | # ------------------------------- |
771 | # Miscenalleous configure options | |
772 | # ------------------------------- | |
34a86c2b NN |
773 | |
774 | # With stabs | |
775 | AC_ARG_WITH(stabs, | |
b88ecf55 AS |
776 | [AS_HELP_STRING([--with-stabs], |
777 | [arrange to use stabs instead of host debug format])], | |
34a86c2b NN |
778 | stabs="$with_stabs", |
779 | stabs=no) | |
780 | ||
34a86c2b NN |
781 | # Determine whether or not multilibs are enabled. |
782 | AC_ARG_ENABLE(multilib, | |
b88ecf55 AS |
783 | [AS_HELP_STRING([--enable-multilib], |
784 | [enable library support for multiple ABIs])], | |
34a86c2b NN |
785 | [], [enable_multilib=yes]) |
786 | AC_SUBST(enable_multilib) | |
3ecc3258 | 787 | |
e0cdc09f MK |
788 | # Determine whether or not multiarch is enabled. |
789 | AC_ARG_ENABLE(multiarch, | |
790 | [AS_HELP_STRING([--enable-multiarch], | |
791 | [enable support for multiarch paths])], | |
5213f20c MK |
792 | [case "${enableval}" in |
793 | yes|no|auto) enable_multiarch=$enableval;; | |
794 | *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;; | |
e0cdc09f MK |
795 | esac], [enable_multiarch=auto]) |
796 | if test x${enable_multiarch} = xauto; then | |
797 | if test x${with_native_system_header_dir} != x; then | |
798 | ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)" | |
799 | enable_multiarch=no | |
800 | fi | |
801 | if test x$host != x$target && test "x$with_sysroot" = x; then | |
802 | ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)" | |
803 | enable_multiarch=no | |
804 | fi | |
805 | fi | |
806 | AC_MSG_CHECKING(for multiarch configuration) | |
807 | AC_SUBST(enable_multiarch) | |
808 | AC_MSG_RESULT($enable_multiarch$ma_msg_suffix) | |
809 | ||
810 | # needed for setting the multiarch name for soft-float/hard-float ABIs | |
d757eae9 | 811 | AC_SUBST(with_cpu) |
e0cdc09f MK |
812 | AC_SUBST(with_float) |
813 | ||
630b1e3a TC |
814 | # default stack clash protection guard size as power of twos in bytes. |
815 | # Please keep these in sync with params.def. | |
816 | stk_clash_min=12 | |
817 | stk_clash_max=30 | |
818 | ||
819 | # Keep the default value when the option is not used to 0, this allows us to | |
820 | # distinguish between the cases where the user specifially set a value via | |
821 | # configure and when the normal default value is used. | |
822 | AC_ARG_WITH(stack-clash-protection-guard-size, | |
823 | [AS_HELP_STRING([--with-stack-clash-protection-guard-size=size], | |
824 | [Set the default stack clash protection guard size for specific targets as a power of two in bytes.])], | |
825 | [DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0]) | |
826 | if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \ | |
827 | && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \ | |
828 | || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then | |
829 | AC_MSG_ERROR(m4_normalize([ | |
830 | Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \ | |
831 | Must be between $stk_clash_min and $stk_clash_max.])) | |
832 | fi | |
833 | ||
834 | AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE, | |
835 | [Define to larger than zero set the default stack clash protector size.]) | |
836 | ||
4bafaa6f L |
837 | # Enable __cxa_atexit for C++. |
838 | AC_ARG_ENABLE(__cxa_atexit, | |
b88ecf55 | 839 | [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])], |
4bafaa6f | 840 | [], []) |
2121a768 | 841 | |
486aa804 | 842 | # Enable C extension for decimal float if target supports it. |
3c39bca6 | 843 | GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) |
486aa804 | 844 | |
79b87c74 | 845 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
486aa804 BE |
846 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
847 | [Define to 1 to enable decimal float extension to C.]) | |
848 | ||
cc0ae0ca L |
849 | # Use default_decimal_float for dependency. |
850 | enable_decimal_float=$default_decimal_float | |
851 | ||
79b87c74 MM |
852 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` |
853 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
854 | [Define to 1 to specify that we are using the BID decimal floating | |
855 | point format instead of DPD]) | |
856 | ||
ab22c1fa CF |
857 | # Enable C extension for fixed-point arithmetic. |
858 | AC_ARG_ENABLE(fixed-point, | |
b88ecf55 AS |
859 | [AS_HELP_STRING([--enable-fixed-point], |
860 | [enable fixed-point arithmetic extension to C])], | |
861 | [], | |
ab22c1fa CF |
862 | [ |
863 | case $target in | |
655b30bf JB |
864 | arm*) |
865 | enable_fixed_point=yes | |
866 | ;; | |
867 | ||
ab22c1fa | 868 | mips*-*-*) |
b24513a1 | 869 | enable_fixed_point=yes |
ab22c1fa CF |
870 | ;; |
871 | *) | |
84f47d20 | 872 | AC_MSG_WARN([fixed-point is not supported for this target, ignored]) |
ab22c1fa CF |
873 | enable_fixed_point=no |
874 | ;; | |
875 | esac | |
876 | ]) | |
877 | AC_SUBST(enable_fixed_point) | |
878 | ||
879 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
880 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
881 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
882 | ||
0bbb1697 RK |
883 | # Enable threads |
884 | # Pass with no value to take the default | |
885 | # Pass with a value to specify a thread package | |
886 | AC_ARG_ENABLE(threads, | |
b88ecf55 AS |
887 | [AS_HELP_STRING([[--enable-threads[=LIB]]], |
888 | [enable thread usage for target GCC, | |
889 | using LIB thread package])],, | |
615be2cf | 890 | [enable_threads='']) |
0bbb1697 | 891 | |
8dea1cca | 892 | AC_ARG_ENABLE(tls, |
b88ecf55 AS |
893 | [AS_HELP_STRING([--enable-tls], |
894 | [enable or disable generation of tls code | |
895 | overriding the assembler check for tls support])], | |
8dea1cca DD |
896 | [ |
897 | case $enable_tls in | |
898 | yes | no) ;; | |
899 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
900 | Valid choices are 'yes' and 'no'.]) ;; | |
901 | esac | |
902 | ], [enable_tls='']) | |
903 | ||
ad103b01 RO |
904 | AC_ARG_ENABLE(vtable-verify, |
905 | [AS_HELP_STRING([--enable-vtable-verify], | |
906 | [enable vtable verification feature])],, | |
907 | [enable_vtable_verify=no]) | |
908 | vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi` | |
909 | AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify, | |
910 | [Define 0/1 if vtable verification feature is enabled.]) | |
911 | ||
d8bb17c8 | 912 | AC_ARG_ENABLE(objc-gc, |
b88ecf55 AS |
913 | [AS_HELP_STRING([--enable-objc-gc], |
914 | [enable the use of Boehm's garbage collector with | |
915 | the GNU Objective-C runtime])], | |
2618c083 | 916 | if test x$enable_objc_gc = xno; then |
d8bb17c8 OP |
917 | objc_boehm_gc='' |
918 | else | |
919 | objc_boehm_gc=1 | |
920 | fi, | |
921 | objc_boehm_gc='') | |
922 | ||
90e6a802 | 923 | AC_ARG_WITH(dwarf2, |
b88ecf55 | 924 | [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])], |
87921b81 | 925 | dwarf2="$with_dwarf2", |
90e6a802 RL |
926 | dwarf2=no) |
927 | ||
50503ac8 | 928 | AC_ARG_ENABLE(shared, |
b88ecf55 | 929 | [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])], |
c785e0fa AO |
930 | [ |
931 | case $enable_shared in | |
932 | yes | no) ;; | |
933 | *) | |
934 | enable_shared=no | |
935 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
936 | for pkg in $enableval; do | |
937 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
938 | enable_shared=yes | |
939 | fi | |
940 | done | |
941 | IFS="$ac_save_ifs" | |
942 | ;; | |
943 | esac | |
944 | ], [enable_shared=yes]) | |
50503ac8 RH |
945 | AC_SUBST(enable_shared) |
946 | ||
1765b023 RV |
947 | AC_ARG_ENABLE(gcov, |
948 | [ --disable-gcov don't provide libgcov and related host tools], | |
949 | [], [enable_gcov=yes]) | |
950 | AC_SUBST(enable_gcov) | |
951 | ||
e11ddaf5 NS |
952 | AC_ARG_WITH(specs, |
953 | [AS_HELP_STRING([--with-specs=SPECS], | |
954 | [add SPECS to driver command-line processing])], | |
955 | [CONFIGURE_SPECS=$withval], | |
956 | [CONFIGURE_SPECS=] | |
957 | ) | |
958 | AC_SUBST(CONFIGURE_SPECS) | |
959 | ||
2f41c1d6 | 960 | ACX_PKGVERSION([GCC]) |
9334ef9e | 961 | ACX_BUGURL([https://gcc.gnu.org/bugs/]) |
2f41c1d6 | 962 | |
e4c9c075 PB |
963 | # Sanity check enable_languages in case someone does not run the toplevel |
964 | # configure # script. | |
965 | AC_ARG_ENABLE(languages, | |
b88ecf55 | 966 | [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])], |
e4c9c075 PB |
967 | [case ,${enable_languages}, in |
968 | ,,|,yes,) | |
969 | # go safe -- we cannot be much sure without the toplevel | |
970 | # configure's | |
971 | # analysis of which target libs are present and usable | |
972 | enable_languages=c | |
973 | ;; | |
974 | *,all,*) | |
975 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
976 | ;; | |
977 | *,c,*) | |
978 | ;; | |
979 | *) | |
980 | enable_languages=c,${enable_languages} | |
981 | ;; | |
982 | esac], | |
983 | [enable_languages=c]) | |
984 | ||
85c64bbe BS |
985 | if test x"$enable_as_accelerator_for" != x; then |
986 | AC_DEFINE(ACCEL_COMPILER, 1, | |
987 | [Define if this compiler should be built as the offload target compiler.]) | |
988 | enable_as_accelerator=yes | |
989 | case "${target}" in | |
990 | *-intelmicemul-*) | |
991 | # In this case we expect offload compiler to be built as native, so we | |
992 | # need to rename the driver to avoid clashes with host's drivers. | |
993 | program_transform_name="s&^&${target}-&" ;; | |
994 | esac | |
995 | sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#" | |
996 | program_transform_name=`echo $program_transform_name | sed $sedscript` | |
997 | accel_dir_suffix=/accel/${target_noncanonical} | |
998 | real_target_noncanonical=${enable_as_accelerator_for} | |
999 | fi | |
1000 | AC_SUBST(enable_as_accelerator) | |
1001 | AC_SUBST(real_target_noncanonical) | |
1002 | AC_SUBST(accel_dir_suffix) | |
1003 | ||
1004 | for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do | |
1005 | tgt=`echo $tgt | sed 's/=.*//'` | |
b2b40051 MJ |
1006 | |
1007 | if echo "$tgt" | grep "^hsa" > /dev/null ; then | |
1008 | enable_hsa=1 | |
1009 | else | |
1010 | enable_offloading=1 | |
1011 | fi | |
1012 | ||
85c64bbe BS |
1013 | if test x"$offload_targets" = x; then |
1014 | offload_targets=$tgt | |
1015 | else | |
64186aad | 1016 | offload_targets="$offload_targets,$tgt" |
85c64bbe BS |
1017 | fi |
1018 | done | |
1019 | AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", | |
64186aad | 1020 | [Define to offload targets, separated by commas.]) |
b2b40051 | 1021 | if test x"$enable_offloading" != x; then |
85c64bbe BS |
1022 | AC_DEFINE(ENABLE_OFFLOADING, 1, |
1023 | [Define this to enable support for offloading.]) | |
1d899da2 TS |
1024 | else |
1025 | AC_DEFINE(ENABLE_OFFLOADING, 0, | |
1026 | [Define this to enable support for offloading.]) | |
85c64bbe BS |
1027 | fi |
1028 | ||
b2b40051 MJ |
1029 | if test x"$enable_hsa" = x1 ; then |
1030 | AC_DEFINE(ENABLE_HSA, 1, | |
1031 | [Define this to enable support for generating HSAIL.]) | |
1032 | fi | |
1033 | ||
aca600aa | 1034 | AC_ARG_WITH(multilib-list, |
17a819cb | 1035 | [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])], |
aca600aa AS |
1036 | :, |
1037 | with_multilib_list=default) | |
1038 | ||
73458fb7 NN |
1039 | # ------------------------- |
1040 | # Checks for other programs | |
1041 | # ------------------------- | |
61842080 | 1042 | |
e9a25f70 JL |
1043 | AC_PROG_MAKE_SET |
1044 | ||
46f18e7b RK |
1045 | # Find some useful tools |
1046 | AC_PROG_AWK | |
776dc15d | 1047 | # We need awk to create options.c and options.h. |
2c4902b9 NN |
1048 | # Bail out if it's missing. |
1049 | case ${AWK} in | |
1050 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
1051 | esac | |
1052 | ||
99e757d5 | 1053 | gcc_AC_PROG_LN_S |
ad6717df | 1054 | ACX_PROG_LN($LN_S) |
46f18e7b | 1055 | AC_PROG_RANLIB |
10eb188c | 1056 | ranlib_flags="" |
343a6100 MM |
1057 | AC_SUBST(ranlib_flags) |
1058 | ||
99e757d5 | 1059 | gcc_AC_PROG_INSTALL |
46f18e7b | 1060 | |
3a000df0 KC |
1061 | # See if cmp has --ignore-initial. |
1062 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
1063 | ||
955be633 JM |
1064 | # See if we have the mktemp command. |
1065 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
1066 | ||
7c27e184 PB |
1067 | # See if makeinfo has been installed and is modern enough |
1068 | # that we can use it. | |
3bbd5a19 | 1069 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
09fa0705 | 1070 | [GNU texinfo.* \([0-9][0-9.]*\)], |
7326a39e | 1071 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
09fa0705 ZW |
1072 | if test $gcc_cv_prog_makeinfo_modern = no; then |
1073 | AC_MSG_WARN([ | |
1074 | *** Makeinfo is missing or too old. | |
17db6582 | 1075 | *** Info documentation will not be built.]) |
09fa0705 | 1076 | BUILD_INFO= |
09fa0705 | 1077 | else |
7c27e184 | 1078 | BUILD_INFO=info |
09fa0705 | 1079 | fi |
7c27e184 | 1080 | AC_SUBST(BUILD_INFO) |
09fa0705 | 1081 | |
3f896fc2 JM |
1082 | # Is pod2man recent enough to regenerate manpages? |
1083 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7be33370 | 1084 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fd939e46 | 1085 | AC_MSG_RESULT(yes) |
7c27e184 | 1086 | GENERATED_MANPAGES=generated-manpages |
fd939e46 JM |
1087 | else |
1088 | AC_MSG_RESULT(no) | |
1089 | GENERATED_MANPAGES= | |
1090 | fi | |
7c27e184 | 1091 | AC_SUBST(GENERATED_MANPAGES) |
fd939e46 | 1092 | |
3bbd5a19 PB |
1093 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
1094 | ||
1e608388 ZW |
1095 | # How about lex? |
1096 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
1097 | dnl LEXLIB is not useful in gcc. | |
7c27e184 | 1098 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
1e608388 ZW |
1099 | |
1100 | # Bison? | |
7c27e184 PB |
1101 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
1102 | ||
1103 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
1104 | # check for build == host before using them. | |
1e608388 | 1105 | |
f6a874ac | 1106 | # NM |
414adbdd GK |
1107 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
1108 | && test -d ../binutils ; then | |
bfa912a8 | 1109 | NM='${objdir}/../binutils/nm-new' |
f6a874ac JW |
1110 | else |
1111 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
1112 | fi | |
1113 | ||
1114 | # AR | |
414adbdd GK |
1115 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
1116 | && test -d ../binutils ; then | |
bfa912a8 | 1117 | AR='${objdir}/../binutils/ar' |
f6a874ac JW |
1118 | else |
1119 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
1120 | fi | |
1121 | ||
35485da9 DM |
1122 | # The jit documentation looks better if built with sphinx, but can be |
1123 | # built with texinfo if sphinx is not available. | |
1124 | # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly. | |
1125 | AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo) | |
f6a874ac | 1126 | |
73458fb7 NN |
1127 | # -------------------- |
1128 | # Checks for C headers | |
1129 | # -------------------- | |
1130 | ||
ca9bc441 NN |
1131 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
1132 | # works later. *sigh* This needs to come before all header checks. | |
1133 | AC_PROG_CPP_WERROR | |
1134 | ||
73458fb7 NN |
1135 | AC_HEADER_STDC |
1136 | AC_HEADER_TIME | |
4f4e53dd | 1137 | ACX_HEADER_STRING |
73458fb7 | 1138 | AC_HEADER_SYS_WAIT |
c68a6e08 | 1139 | AC_HEADER_TIOCGWINSZ |
dfb77e37 | 1140 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
37050045 | 1141 | fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
73458fb7 | 1142 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
4fbfcf44 | 1143 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
73458fb7 NN |
1144 | |
1145 | # Check for thread headers. | |
1146 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
1147 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
1148 | ||
1149 | # These tests can't be done till we know if we have limits.h. | |
1150 | gcc_AC_C_CHAR_BIT | |
9791c75c | 1151 | AC_C_BIGENDIAN |
73458fb7 | 1152 | |
5427046f ILT |
1153 | # ---------------------- |
1154 | # Checks for C++ headers | |
1155 | # ---------------------- | |
1156 | ||
c658f0ce ILT |
1157 | dnl Autoconf will give an error in the configure script if there is no |
1158 | dnl C++ preprocessor. Hack to prevent that. | |
1159 | m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl | |
1160 | AC_PROG_CXXCPP | |
1161 | m4_popdef([AC_MSG_ERROR])[]dnl | |
1162 | ||
5427046f ILT |
1163 | AC_CHECK_HEADERS(unordered_map) |
1164 | AC_CHECK_HEADERS(tr1/unordered_map) | |
1165 | AC_CHECK_HEADERS(ext/hash_map) | |
1166 | ||
043378c3 TT |
1167 | # -------- |
1168 | # Dependency checking. | |
1169 | # -------- | |
1170 | ||
043378c3 TT |
1171 | ZW_CREATE_DEPDIR |
1172 | AC_CONFIG_COMMANDS([gccdepdir],[ | |
1173 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR | |
1174 | for lang in $subdirs c-family common | |
1175 | do | |
1176 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR | |
1177 | done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) | |
1178 | ||
54c09437 | 1179 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
5427046f | 1180 | |
73458fb7 NN |
1181 | # -------- |
1182 | # UNSORTED | |
1183 | # -------- | |
1184 | ||
73458fb7 | 1185 | |
4e70264f ZW |
1186 | # These libraries may be used by collect2. |
1187 | # We may need a special search path to get them linked. | |
1188 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1189 | [save_LIBS="$LIBS" | |
7f2749d4 | 1190 | for libs in '' -lld -lmld \ |
4e70264f ZW |
1191 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1192 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1193 | do | |
1194 | LIBS="$libs" | |
1195 | AC_TRY_LINK_FUNC(ldopen, | |
1196 | [gcc_cv_collect2_libs="$libs"; break]) | |
1197 | done | |
1198 | LIBS="$save_LIBS" | |
1199 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1200 | case $gcc_cv_collect2_libs in | |
1201 | "none required") ;; | |
1202 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1203 | esac | |
1204 | AC_SUBST(COLLECT2_LIBS) | |
1205 | ||
7f2749d4 RK |
1206 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1207 | # -lexc. So test for it. | |
1208 | save_LIBS="$LIBS" | |
1209 | LIBS= | |
1210 | AC_SEARCH_LIBS(exc_resume, exc) | |
1211 | GNAT_LIBEXC="$LIBS" | |
1212 | LIBS="$save_LIBS" | |
1213 | AC_SUBST(GNAT_LIBEXC) | |
1214 | ||
e3b3fa45 RO |
1215 | # To support -mcpu=native on Solaris/SPARC, we need libkstat. |
1216 | save_LIBS="$LIBS" | |
1217 | LIBS= | |
1218 | AC_SEARCH_LIBS(kstat_open, kstat) | |
1219 | EXTRA_GCC_LIBS="$LIBS" | |
1220 | LIBS="$save_LIBS" | |
1221 | AC_SUBST(EXTRA_GCC_LIBS) | |
1222 | ||
62c9aa5f ZW |
1223 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1224 | # they're both in the same place. jcf-dump needs them. | |
1225 | save_LIBS="$LIBS" | |
1226 | LIBS= | |
1227 | AC_SEARCH_LIBS(ldexp, m) | |
1228 | LDEXP_LIB="$LIBS" | |
1229 | LIBS="$save_LIBS" | |
1230 | AC_SUBST(LDEXP_LIB) | |
1231 | ||
7431c1a1 AS |
1232 | # Some systems need dlopen |
1233 | save_LIBS="$LIBS" | |
1234 | LIBS= | |
1235 | AC_SEARCH_LIBS(dlopen, dl) | |
1236 | DL_LIB="$LIBS" | |
1237 | LIBS="$save_LIBS" | |
1238 | AC_SUBST(DL_LIB) | |
1239 | ||
7636d567 | 1240 | # Use <inttypes.h> only if it exists, |
35987ae9 RB |
1241 | # doesn't clash with <sys/types.h>, declares intmax_t and defines |
1242 | # PRId64 | |
7636d567 JW |
1243 | AC_MSG_CHECKING(for inttypes.h) |
1244 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
f04f1d2c | 1245 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
35987ae9 RB |
1246 | [[#define __STDC_FORMAT_MACROS |
1247 | #include <sys/types.h> | |
f04f1d2c | 1248 | #include <inttypes.h>]], |
35987ae9 RB |
1249 | [[intmax_t i = -1; |
1250 | #ifndef PRId64 | |
1251 | choke me | |
1252 | #endif]])], | |
9da0e39b | 1253 | [gcc_cv_header_inttypes_h=yes], |
f04f1d2c | 1254 | [gcc_cv_header_inttypes_h=no])]) |
7636d567 | 1255 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
9da0e39b | 1256 | if test $gcc_cv_header_inttypes_h = yes; then |
119d24d1 KG |
1257 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1258 | [Define if you have a working <inttypes.h> header file.]) | |
9da0e39b | 1259 | fi |
cdcc6a01 | 1260 | |
9612ab65 ZW |
1261 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1262 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
c149cc37 | 1263 | |
0d667716 KG |
1264 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1265 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1266 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1267 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1268 | putchar_unlocked putc_unlocked) | |
384d8786 | 1269 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \ |
b6d94045 | 1270 | popen sysconf strsignal getrusage nl_langinfo \ |
71f3e391 | 1271 | gettimeofday mbstowcs wcswidth mmap setlocale \ |
711a3d82 | 1272 | gcc_UNLOCKED_FUNCS madvise) |
a81fb89e | 1273 | |
39f6c4c8 KW |
1274 | if test x$ac_cv_func_mbstowcs = xyes; then |
1275 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
f04f1d2c | 1276 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
39f6c4c8 KW |
1277 | int main() |
1278 | { | |
1279 | mbstowcs(0, "", 0); | |
1280 | return 0; | |
f04f1d2c KC |
1281 | }]])], |
1282 | [gcc_cv_func_mbstowcs_works=yes], | |
1283 | [gcc_cv_func_mbstowcs_works=no], | |
1284 | [gcc_cv_func_mbstowcs_works=yes])]) | |
39f6c4c8 KW |
1285 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1286 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1287 | [Define this macro if mbstowcs does not crash when its | |
1288 | first argument is NULL.]) | |
1289 | fi | |
1290 | fi | |
1291 | ||
78c9cb99 | 1292 | AC_CHECK_TYPE(ssize_t, int) |
bba09b5a | 1293 | AC_CHECK_TYPE(caddr_t, char *) |
56f48ce9 | 1294 | |
2f6935f4 | 1295 | GCC_AC_FUNC_MMAP_BLACKLIST |
b27d2bd5 MK |
1296 | |
1297 | case "${host}" in | |
ee262b6f | 1298 | *-*-*vms*) |
2c55543b | 1299 | # Under VMS, vfork works very differently than on Unix. The standard test |
ee262b6f DR |
1300 | # won't work, and it isn't easily adaptable. It makes more sense to |
1301 | # just force it. | |
1302 | ac_cv_func_vfork_works=yes | |
1303 | ;; | |
b27d2bd5 | 1304 | esac |
f04f1d2c | 1305 | AC_FUNC_FORK |
f1b54f9b | 1306 | |
0823efed | 1307 | AM_ICONV |
5b6d595b | 1308 | |
56694dd9 ZW |
1309 | # Until we have in-tree GNU iconv: |
1310 | LIBICONV_DEP= | |
bf5372e7 YS |
1311 | if test -f "$LTLIBICONV"; then |
1312 | LIBICONV_DEP=$LTLIBICONV | |
1313 | fi | |
56694dd9 ZW |
1314 | AC_SUBST(LIBICONV_DEP) |
1315 | ||
1316 | AM_LC_MESSAGES | |
f91abfce | 1317 | |
a03ea89b BM |
1318 | AM_LANGINFO_CODESET |
1319 | ||
86cf1cbd KG |
1320 | # We will need to find libiberty.h and ansidecl.h |
1321 | saved_CFLAGS="$CFLAGS" | |
b8f6a302 | 1322 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
87fb500b | 1323 | saved_CXXFLAGS="$CXXFLAGS" |
b8f6a302 | 1324 | CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
13ccfea8 JM |
1325 | |
1326 | # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the | |
1327 | # normal autoconf function for these. But force definition of | |
1328 | # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre | |
1329 | # basename handling in libiberty.h. | |
1330 | AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[ | |
1331 | #undef HAVE_DECL_BASENAME | |
1332 | #define HAVE_DECL_BASENAME 1 | |
1333 | #include "ansidecl.h" | |
1334 | #include "system.h"]) | |
1335 | ||
384d8786 | 1336 | gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \ |
13ccfea8 | 1337 | madvise stpcpy strnlen strsignal strverscmp \ |
297c364d | 1338 | strtol strtoul strtoll strtoull setenv unsetenv \ |
ed5b9f96 | 1339 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ |
13ccfea8 | 1340 | free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[ |
d02af173 | 1341 | #include "ansidecl.h" |
86cf1cbd | 1342 | #include "system.h"]) |
c5c76735 | 1343 | |
f31e826b | 1344 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
d02af173 | 1345 | #include "ansidecl.h" |
86cf1cbd | 1346 | #include "system.h" |
d2cabf16 KG |
1347 | #ifdef HAVE_SYS_RESOURCE_H |
1348 | #include <sys/resource.h> | |
1349 | #endif | |
1350 | ]) | |
1351 | ||
f04f1d2c | 1352 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
b2522d2b HPN |
1353 | #include "ansidecl.h" |
1354 | #include "system.h" | |
1355 | #ifdef HAVE_SYS_RESOURCE_H | |
1356 | #include <sys/resource.h> | |
1357 | #endif | |
f04f1d2c | 1358 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
236ec2d7 | 1359 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
b2522d2b | 1360 | |
2102b2fe RS |
1361 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1362 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1363 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1364 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
351df804 KG |
1365 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1366 | #include "ansidecl.h" | |
1367 | #include "system.h" | |
1368 | #ifdef HAVE_LDFCN_H | |
2102b2fe RS |
1369 | #undef FREAD |
1370 | #undef FWRITE | |
351df804 KG |
1371 | #include <ldfcn.h> |
1372 | #endif | |
1373 | ]) | |
1374 | ||
c1800ec8 ZW |
1375 | gcc_AC_CHECK_DECLS(times, , ,[ |
1376 | #include "ansidecl.h" | |
1377 | #include "system.h" | |
1378 | #ifdef HAVE_SYS_TIMES_H | |
1379 | #include <sys/times.h> | |
1380 | #endif | |
1381 | ]) | |
1382 | ||
4f6d8cc8 GK |
1383 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1384 | #include "ansidecl.h" | |
1385 | #include "system.h" | |
1386 | #include <signal.h> | |
1387 | ]) | |
1388 | ||
c1800ec8 ZW |
1389 | # More time-related stuff. |
1390 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
f04f1d2c | 1391 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1392 | #include "ansidecl.h" |
1393 | #include "system.h" | |
1394 | #ifdef HAVE_SYS_TIMES_H | |
1395 | #include <sys/times.h> | |
1396 | #endif | |
f04f1d2c | 1397 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c1800ec8 ZW |
1398 | if test $ac_cv_struct_tms = yes; then |
1399 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1400 | [Define if <sys/times.h> defines struct tms.]) | |
1401 | fi | |
1402 | ||
1403 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1404 | # revisit after autoconf 2.50. | |
1405 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
f04f1d2c | 1406 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1407 | #include "ansidecl.h" |
1408 | #include "system.h" | |
f04f1d2c | 1409 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c1800ec8 ZW |
1410 | if test $gcc_cv_type_clock_t = yes; then |
1411 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1412 | [Define if <time.h> defines clock_t.]) | |
1413 | fi | |
1414 | ||
c1736aea TJ |
1415 | # Check if F_SETLKW is supported by fcntl. |
1416 | AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [ | |
1417 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1418 | #include <fcntl.h>]], [[ | |
1419 | struct flock fl; | |
1420 | fl.l_whence = 0; | |
1421 | fl.l_start = 0; | |
1422 | fl.l_len = 0; | |
1423 | fl.l_pid = 0; | |
1424 | return fcntl (1, F_SETLKW, &fl);]])], | |
1425 | [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])]) | |
1426 | if test $ac_cv_f_setlkw = yes; then | |
1427 | AC_DEFINE(HOST_HAS_F_SETLKW, 1, | |
1428 | [Define if F_SETLKW supported by fcntl.]) | |
1429 | fi | |
1430 | ||
87fb500b | 1431 | # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
86cf1cbd | 1432 | CFLAGS="$saved_CFLAGS" |
87fb500b | 1433 | CXXFLAGS="$saved_CXXFLAGS" |
86cf1cbd | 1434 | |
75923b2f | 1435 | # mkdir takes a single argument on some systems. |
99e757d5 | 1436 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
75923b2f | 1437 | |
46f18e7b RK |
1438 | # File extensions |
1439 | manext='.1' | |
1440 | objext='.o' | |
46f18e7b RK |
1441 | AC_SUBST(manext) |
1442 | AC_SUBST(objext) | |
46f18e7b | 1443 | |
4977bab6 ZW |
1444 | # With Setjmp/Longjmp based exception handling. |
1445 | AC_ARG_ENABLE(sjlj-exceptions, | |
b88ecf55 AS |
1446 | [AS_HELP_STRING([--enable-sjlj-exceptions], |
1447 | [arrange to use setjmp/longjmp exception handling])], | |
399fe3e1 JDA |
1448 | [case $target in |
1449 | *-*-hpux10*) | |
1450 | if test $enableval != yes; then | |
1451 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1452 | enableval=yes | |
1453 | fi | |
1454 | ;; | |
1455 | esac | |
1456 | force_sjlj_exceptions=yes], | |
1457 | [case $target in | |
1458 | *-*-hpux10*) | |
1459 | force_sjlj_exceptions=yes | |
1460 | enableval=yes | |
1461 | ;; | |
9b0af790 JB |
1462 | lm32*-*-*) |
1463 | force_sjlj_exceptions=yes | |
1464 | enableval=yes | |
1465 | ;; | |
399fe3e1 JDA |
1466 | *) |
1467 | force_sjlj_exceptions=no | |
1468 | ;; | |
1469 | esac]) | |
1470 | if test $force_sjlj_exceptions = yes; then | |
1471 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1472 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1473 | [Define 0/1 to force the choice for exception handling model.]) | |
1474 | fi | |
4977bab6 | 1475 | |
34a86c2b NN |
1476 | # -------------------------------------------------------- |
1477 | # Build, host, and target specific configuration fragments | |
1478 | # -------------------------------------------------------- | |
1479 | ||
5b28c537 | 1480 | # Collect build-machine-specific information. |
2c811fd3 | 1481 | . ${srcdir}/config.build || exit 1 |
5b28c537 | 1482 | |
a89ea0df | 1483 | # Collect host-machine-specific information. |
2c811fd3 | 1484 | . ${srcdir}/config.host || exit 1 |
a89ea0df | 1485 | |
ef69da62 | 1486 | target_gtfiles= |
a89ea0df NN |
1487 | |
1488 | # Collect target-machine-specific information. | |
2c811fd3 | 1489 | . ${srcdir}/config.gcc || exit 1 |
46f18e7b RK |
1490 | |
1491 | extra_objs="${host_extra_objs} ${extra_objs}" | |
30500d84 | 1492 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
46f18e7b RK |
1493 | |
1494 | # Default the target-machine variables that were not explicitly set. | |
75bffa71 | 1495 | if test x"$tm_file" = x |
46f18e7b RK |
1496 | then tm_file=$cpu_type/$cpu_type.h; fi |
1497 | ||
6b2adea9 | 1498 | if test x"$extra_headers" = x |
46f18e7b RK |
1499 | then extra_headers=; fi |
1500 | ||
75bffa71 | 1501 | if test x$md_file = x |
e98e406f | 1502 | then md_file=$cpu_type/$cpu_type.md; fi |
46f18e7b | 1503 | |
75bffa71 | 1504 | if test x$out_file = x |
46f18e7b RK |
1505 | then out_file=$cpu_type/$cpu_type.c; fi |
1506 | ||
75bffa71 | 1507 | if test x"$tmake_file" = x |
46f18e7b RK |
1508 | then tmake_file=$cpu_type/t-$cpu_type |
1509 | fi | |
1510 | ||
e9c9f128 JJ |
1511 | # Support --enable-initfini-array. |
1512 | if test x$enable_initfini_array != xno; then | |
1513 | tm_file="${tm_file} initfini-array.h" | |
1514 | fi | |
1515 | ||
90e6a802 | 1516 | if test x"$dwarf2" = xyes |
756ee602 | 1517 | then tm_file="$tm_file tm-dwarf2.h" |
90e6a802 RL |
1518 | fi |
1519 | ||
46f18e7b | 1520 | # Say what files are being used for the output code and MD file. |
11642c3a | 1521 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
46f18e7b RK |
1522 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1523 | ||
11642c3a | 1524 | # If any of the xm_file variables contain nonexistent files, warn |
4dc0535b ZW |
1525 | # about them and drop them. |
1526 | ||
11642c3a ZW |
1527 | bx= |
1528 | for x in $build_xm_file; do | |
1529 | if test -f $srcdir/config/$x | |
1530 | then bx="$bx $x" | |
11642c3a ZW |
1531 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1532 | fi | |
1533 | done | |
1534 | build_xm_file="$bx" | |
1535 | ||
1536 | hx= | |
1537 | for x in $host_xm_file; do | |
1538 | if test -f $srcdir/config/$x | |
1539 | then hx="$hx $x" | |
11642c3a ZW |
1540 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1541 | fi | |
1542 | done | |
1543 | host_xm_file="$hx" | |
1544 | ||
1545 | tx= | |
1546 | for x in $xm_file; do | |
1547 | if test -f $srcdir/config/$x | |
1548 | then tx="$tx $x" | |
11642c3a ZW |
1549 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1550 | fi | |
1551 | done | |
1552 | xm_file="$tx" | |
1553 | ||
46f18e7b RK |
1554 | count=a |
1555 | for f in $tm_file; do | |
1556 | count=${count}x | |
1557 | done | |
75bffa71 | 1558 | if test $count = ax; then |
46f18e7b RK |
1559 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1560 | else | |
1561 | echo "Using the following target machine macro files:" | |
1562 | for f in $tm_file; do | |
1563 | echo " $srcdir/config/$f" | |
1564 | done | |
1565 | fi | |
1566 | ||
99fa8911 AP |
1567 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1568 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
edf6ddf6 | 1569 | [Define to 1 if the 'long long' type is wider than 'long' but still |
99fa8911 AP |
1570 | efficiently supported by the host hardware.]) |
1571 | fi | |
1572 | ||
b993039f EB |
1573 | gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi` |
1574 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.]) | |
1575 | ||
1576 | gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi` | |
1577 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.]) | |
1578 | ||
46f18e7b RK |
1579 | count=a |
1580 | for f in $host_xm_file; do | |
1581 | count=${count}x | |
1582 | done | |
11642c3a ZW |
1583 | if test $count = a; then |
1584 | : | |
1585 | elif test $count = ax; then | |
46f18e7b RK |
1586 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1587 | else | |
1588 | echo "Using the following host machine macro files:" | |
1589 | for f in $host_xm_file; do | |
1590 | echo " $srcdir/config/$f" | |
1591 | done | |
1592 | fi | |
476d9098 | 1593 | echo "Using ${out_host_hook_obj} for host machine hooks." |
46f18e7b | 1594 | |
75bffa71 | 1595 | if test "$host_xm_file" != "$build_xm_file"; then |
46f18e7b RK |
1596 | count=a |
1597 | for f in $build_xm_file; do | |
1598 | count=${count}x | |
1599 | done | |
11642c3a ZW |
1600 | if test $count = a; then |
1601 | : | |
1602 | elif test $count = ax; then | |
46f18e7b RK |
1603 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1604 | else | |
1605 | echo "Using the following build machine macro files:" | |
1606 | for f in $build_xm_file; do | |
1607 | echo " $srcdir/config/$f" | |
1608 | done | |
1609 | fi | |
1610 | fi | |
1611 | ||
08b2bad2 SB |
1612 | if test -n "$configured_native_system_header_dir"; then |
1613 | native_system_header_dir=$configured_native_system_header_dir | |
1614 | fi | |
1615 | NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir" | |
1616 | AC_SUBST(NATIVE_SYSTEM_HEADER_DIR) | |
1617 | ||
4f6d8cc8 | 1618 | case ${host} in |
b8ec3cc8 | 1619 | powerpc*-*-darwin*) |
4f6d8cc8 GK |
1620 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1621 | gcc_cv_mcontext_underscores, | |
22e05272 | 1622 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
ba7da42a | 1623 | #include <sys/cdefs.h> |
de4fb767 | 1624 | #include <sys/signal.h> |
4f6d8cc8 GK |
1625 | #include <ucontext.h> |
1626 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
22e05272 | 1627 | ])], |
4f6d8cc8 GK |
1628 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) |
1629 | if test $gcc_cv_mcontext_underscores = yes; then | |
1630 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1631 | [mcontext_t fields start with __]) | |
1632 | fi | |
1633 | ;; | |
1634 | esac | |
1635 | ||
8bb915b6 NN |
1636 | # --------- |
1637 | # Threading | |
1638 | # --------- | |
1639 | ||
c2e494a8 | 1640 | # Check if a valid thread package |
615be2cf | 1641 | case ${enable_threads} in |
c2e494a8 NN |
1642 | "" | no) |
1643 | # No threads | |
1644 | target_thread_file='single' | |
1645 | ;; | |
1646 | yes) | |
1647 | # default | |
1648 | target_thread_file='single' | |
1649 | ;; | |
ddaad3c8 | 1650 | aix | dce | lynx | mipssde | posix | rtems | \ |
da90c957 | 1651 | single | tpf | vxworks | win32) |
615be2cf | 1652 | target_thread_file=${enable_threads} |
c2e494a8 NN |
1653 | ;; |
1654 | *) | |
615be2cf | 1655 | echo "${enable_threads} is an unknown thread package" 1>&2 |
c2e494a8 NN |
1656 | exit 1 |
1657 | ;; | |
1658 | esac | |
1659 | ||
1660 | if test x${thread_file} = x; then | |
1661 | # No thread file set by target-specific clauses in config.gcc, | |
1662 | # so use file chosen by default logic above | |
1663 | thread_file=${target_thread_file} | |
46f18e7b | 1664 | fi |
46f18e7b | 1665 | |
8bb915b6 NN |
1666 | # -------- |
1667 | # UNSORTED | |
1668 | # -------- | |
1669 | ||
18fbf599 | 1670 | use_cxa_atexit=no |
2121a768 JT |
1671 | if test x$enable___cxa_atexit = xyes || \ |
1672 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
18fbf599 | 1673 | if test x$host = x$target; then |
97388150 DS |
1674 | case $host in |
1675 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1676 | # keyed to flag_use_cxa_atexit | |
1677 | *-*-mingw32*) | |
1678 | use_cxa_atexit=yes | |
1679 | ;; | |
99113dff DE |
1680 | powerpc-ibm-aix*) |
1681 | use_cxa_atexit=yes | |
1682 | ;; | |
97388150 DS |
1683 | *) |
1684 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1685 | [echo "__cxa_atexit can't be enabled on this target"]) | |
5f60e48f | 1686 | ;; |
97388150 | 1687 | esac |
18fbf599 PB |
1688 | else |
1689 | # We can't check for __cxa_atexit when building a cross, so assume | |
1690 | # it is available | |
1691 | use_cxa_atexit=yes | |
1692 | fi | |
1693 | if test x$use_cxa_atexit = xyes; then | |
c7b5e395 | 1694 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
18fbf599 PB |
1695 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1696 | register C++ destructors for local statics and global objects. | |
1697 | This is essential for fully standards-compliant handling of | |
1698 | destructors, but requires __cxa_atexit in libc.]) | |
1699 | fi | |
2121a768 JT |
1700 | fi |
1701 | ||
a5381466 | 1702 | # Look for a file containing extra machine modes. |
1c0ca89d ZW |
1703 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1704 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
a5381466 | 1705 | AC_SUBST(extra_modes_file) |
e22340b0 | 1706 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
a5381466 ZW |
1707 | [Define to the name of a file containing a list of extra machine modes |
1708 | for this architecture.]) | |
a5381466 ZW |
1709 | fi |
1710 | ||
75685792 RS |
1711 | # Convert extra_options into a form suitable for Makefile use. |
1712 | extra_opt_files= | |
fd438373 | 1713 | all_opt_files= |
75685792 RS |
1714 | for f in $extra_options; do |
1715 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
fd438373 | 1716 | all_opt_files="$all_opt_files $srcdir/config/$f" |
75685792 RS |
1717 | done |
1718 | AC_SUBST(extra_opt_files) | |
1719 | ||
b7cb92ad | 1720 | # auto-host.h is the file containing items generated by autoconf and is |
e9a25f70 | 1721 | # the first file included by config.h. |
4977bab6 | 1722 | # If host=build, it is correct to have bconfig include auto-host.h |
db81d74a RH |
1723 | # as well. If host!=build, we are in error and need to do more |
1724 | # work to find out the build config parameters. | |
75bffa71 | 1725 | if test x$host = x$build |
db81d74a | 1726 | then |
eaf4e618 | 1727 | build_auto=auto-host.h |
b7cb92ad JL |
1728 | else |
1729 | # We create a subdir, then run autoconf in the subdir. | |
1730 | # To prevent recursion we set host and build for the new | |
1731 | # invocation of configure to the build for this invocation | |
1732 | # of configure. | |
1733 | tempdir=build.$$ | |
1734 | rm -rf $tempdir | |
1735 | mkdir $tempdir | |
1736 | cd $tempdir | |
1737 | case ${srcdir} in | |
b86ecfa9 | 1738 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
b7cb92ad JL |
1739 | *) realsrcdir=../${srcdir};; |
1740 | esac | |
2ceb362d AM |
1741 | # Clearing GMPINC is necessary to prevent host headers being |
1742 | # used by the build compiler. Defining GENERATOR_FILE stops | |
1743 | # system.h from including gmp.h. | |
d920e825 | 1744 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ |
2ceb362d AM |
1745 | CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \ |
1746 | LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
1747 | GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \ | |
d920e825 | 1748 | ${realsrcdir}/configure \ |
33e70558 | 1749 | --enable-languages=${enable_languages-all} \ |
534d0cc0 | 1750 | --target=$target_alias --host=$build_alias --build=$build_alias |
b7cb92ad JL |
1751 | |
1752 | # We just finished tests for the build machine, so rename | |
1753 | # the file auto-build.h in the gcc directory. | |
1754 | mv auto-host.h ../auto-build.h | |
1755 | cd .. | |
1756 | rm -rf $tempdir | |
eaf4e618 | 1757 | build_auto=auto-build.h |
db81d74a | 1758 | fi |
71b5d516 | 1759 | AC_SUBST(build_subdir) |
db81d74a | 1760 | |
eaf4e618 | 1761 | tm_file="${tm_file} defaults.h" |
4977bab6 | 1762 | tm_p_file="${tm_p_file} tm-preds.h" |
b4c522fa | 1763 | tm_d_file="${tm_d_file} defaults.h" |
4977bab6 ZW |
1764 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" |
1765 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
49691411 | 1766 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
b4862477 | 1767 | # put this back in temporarily. |
232b67d9 | 1768 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
0056a9b5 | 1769 | |
34a86c2b NN |
1770 | # -------- |
1771 | # UNSORTED | |
1772 | # -------- | |
1773 | ||
afabd8e6 | 1774 | changequote(,)dnl |
cc1e60ea | 1775 | # Compile in configure arguments. |
8105825d | 1776 | if test -f configargs.h ; then |
cc1e60ea | 1777 | # Being re-configured. |
022dae81 | 1778 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
54de7d7d JJ |
1779 | gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'` |
1780 | if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then | |
1781 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1782 | fi | |
cc1e60ea JM |
1783 | else |
1784 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1785 | fi | |
eeae7b41 DJ |
1786 | |
1787 | # Double all backslashes and backslash all quotes to turn | |
1788 | # gcc_config_arguments into a C string. | |
1789 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1790 | $gcc_config_arguments | |
1791 | EOF | |
1792 | gcc_config_arguments_str=`cat conftest.out` | |
1793 | rm -f conftest.out | |
1794 | ||
cc1e60ea JM |
1795 | cat > configargs.h <<EOF |
1796 | /* Generated automatically. */ | |
eeae7b41 | 1797 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
a6687d2b | 1798 | static const char thread_model[] = "$thread_file"; |
7816bea0 DJ |
1799 | |
1800 | static const struct { | |
1801 | const char *name, *value; | |
1802 | } configure_default_options[] = $configure_default_options; | |
cc1e60ea | 1803 | EOF |
75bffa71 | 1804 | changequote([,])dnl |
46f18e7b | 1805 | |
0c463e16 | 1806 | changequote(,)dnl |
40540e68 RAE |
1807 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1808 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1809 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
0c463e16 | 1810 | if test -f $srcdir/REVISION ; then |
40540e68 | 1811 | gcc_REVISION=`cat $srcdir/REVISION` |
0c463e16 RAE |
1812 | else |
1813 | gcc_REVISION="" | |
1814 | fi | |
1815 | cat > plugin-version.h <<EOF | |
1816 | #include "configargs.h" | |
1817 | ||
bf588455 BS |
1818 | #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'` |
1819 | #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'` | |
1820 | #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'` | |
1821 | #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR) | |
1822 | ||
0c463e16 RAE |
1823 | static char basever[] = "$gcc_BASEVER"; |
1824 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1825 | static char devphase[] = "$gcc_DEVPHASE"; | |
1826 | static char revision[] = "$gcc_REVISION"; | |
1827 | ||
1828 | /* FIXME plugins: We should make the version information more precise. | |
1829 | One way to do is to add a checksum. */ | |
1830 | ||
1831 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1832 | devphase, revision, | |
1833 | configuration_arguments}; | |
1834 | EOF | |
1835 | changequote([,])dnl | |
1836 | ||
3c36aa6b JJ |
1837 | # Determine what GCC version number to use in filesystem paths. |
1838 | GCC_BASE_VER | |
1839 | ||
ab87f8c8 | 1840 | # Internationalization |
56694dd9 | 1841 | ZW_GNU_GETTEXT_SISTER_DIR |
dc6746e7 | 1842 | |
56694dd9 ZW |
1843 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1844 | # -liconv on the link line twice. | |
1845 | case "$LIBINTL" in *$LIBICONV*) | |
1846 | LIBICONV= ;; | |
1847 | esac | |
ab87f8c8 | 1848 | |
7f970b70 | 1849 | AC_ARG_ENABLE(secureplt, |
b88ecf55 AS |
1850 | [AS_HELP_STRING([--enable-secureplt], |
1851 | [enable -msecure-plt by default for PowerPC])], | |
7f970b70 AM |
1852 | [], []) |
1853 | ||
446163e2 TP |
1854 | AC_ARG_ENABLE(mingw-wildcard, |
1855 | [AS_HELP_STRING([--enable-mingw-wildcard], | |
1856 | [Set whether to expand wildcard on command-line. | |
1857 | Default to platform configuration])], | |
1858 | [],[enable_mingw_wildcard=platform]) | |
1859 | AS_IF([test x"$enable_mingw_wildcard" != xplatform ], | |
1860 | [AC_DEFINE_UNQUOTED(MINGW_DOWILDCARD, | |
1861 | $(test x"$enable_mingw_wildcard" = xno; echo $?), | |
1862 | [Value to set mingw's _dowildcard to.])]) | |
1863 | ||
67aeaded AO |
1864 | AC_ARG_ENABLE(large-address-aware, |
1865 | [AS_HELP_STRING([--enable-large-address-aware], | |
1866 | [Link mingw executables with --large-address-aware])]) | |
1867 | AS_IF([test x"$enable_large_address_aware" = xyes], | |
1868 | [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1, | |
1869 | [Define if we should link mingw executables with --large-address-aware])]) | |
1870 | ||
ad211091 KT |
1871 | AC_ARG_ENABLE(leading-mingw64-underscores, |
1872 | AS_HELP_STRING([--enable-leading-mingw64-underscores], | |
b88ecf55 | 1873 | [enable leading underscores on 64 bit mingw targets]), |
ad211091 KT |
1874 | [],[]) |
1875 | AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ], | |
1876 | [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1, | |
1877 | [Define if we should use leading underscore on 64 bit mingw targets])]) | |
1878 | ||
922e3e33 | 1879 | AC_ARG_ENABLE(cld, |
b88ecf55 | 1880 | [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [], |
922e3e33 UB |
1881 | [enable_cld=no]) |
1882 | ||
d79389af | 1883 | AC_ARG_ENABLE(frame-pointer, |
b88ecf55 | 1884 | [AS_HELP_STRING([--enable-frame-pointer], |
fd661a34 | 1885 | [enable -fno-omit-frame-pointer by default for x86])], [], |
d79389af L |
1886 | [ |
1887 | case $target_os in | |
6221eb9d | 1888 | linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*) |
7d48b7ad | 1889 | # Enable -fomit-frame-pointer by default for these systems with DWARF2. |
d79389af L |
1890 | enable_frame_pointer=no |
1891 | ;; | |
1892 | *) | |
1893 | enable_frame_pointer=yes | |
1894 | ;; | |
1895 | esac | |
1896 | ]) | |
1897 | ||
fd661a34 UB |
1898 | case $target in |
1899 | i[[34567]]86-*-* | x86_64-*-*) | |
1900 | if test "x$enable_cld" = xyes; then | |
1901 | tm_defines="${tm_defines} USE_IX86_CLD=1" | |
1902 | fi | |
1903 | if test "x$enable_frame_pointer" = xyes; then | |
1904 | tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1" | |
1905 | fi | |
1906 | ;; | |
1907 | esac | |
1908 | ||
f4ab28e3 MK |
1909 | # Windows32 Registry support for specifying GCC installation paths. |
1910 | AC_ARG_ENABLE(win32-registry, | |
b88ecf55 AS |
1911 | [AS_HELP_STRING([--disable-win32-registry], |
1912 | [disable lookup of installation paths in the | |
1913 | Registry on Windows hosts]) | |
1914 | AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)]) | |
1915 | AS_HELP_STRING([--enable-win32-registry=KEY], | |
1916 | [use KEY instead of GCC version as the last portion | |
1917 | of the registry key])],,) | |
a1286ef5 | 1918 | |
4e70264f | 1919 | case $host_os in |
abe64d9e | 1920 | win32 | pe | cygwin* | mingw32*) |
a1286ef5 ZW |
1921 | if test "x$enable_win32_registry" != xno; then |
1922 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1923 | fi | |
f4ab28e3 | 1924 | |
a1286ef5 ZW |
1925 | if test "x$enable_win32_registry" != xno; then |
1926 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1927 | [Define to 1 if installation paths should be looked up in the Windows | |
1928 | Registry. Ignored on non-Windows hosts.]) | |
1929 | ||
1930 | if test "x$enable_win32_registry" != xyes \ | |
1931 | && test "x$enable_win32_registry" != x; then | |
1932 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1933 | [Define to be the last component of the Windows registry key under which | |
1934 | to look for installation paths. The full key used will be | |
1935 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1936 | The default is the GCC version number.]) | |
1937 | fi | |
1938 | fi | |
f4ab28e3 MK |
1939 | ;; |
1940 | esac | |
1941 | ||
7fa10b25 | 1942 | # Get an absolute path to the GCC top-level source directory |
1e6347d8 | 1943 | holddir=`${PWDCMD-pwd}` |
7fa10b25 | 1944 | cd $srcdir |
1e6347d8 | 1945 | topdir=`${PWDCMD-pwd}` |
7fa10b25 RK |
1946 | cd $holddir |
1947 | ||
af5e4ada | 1948 | # Conditionalize the makefile for this host machine. |
2ed26f6b | 1949 | xmake_file= |
c406e779 | 1950 | for f in ${host_xmake_file} |
94f42018 | 1951 | do |
75bffa71 | 1952 | if test -f ${srcdir}/config/$f |
94f42018 | 1953 | then |
2ed26f6b | 1954 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
94f42018 DE |
1955 | fi |
1956 | done | |
46f18e7b | 1957 | |
af5e4ada | 1958 | # Conditionalize the makefile for this target machine. |
2ed26f6b | 1959 | tmake_file_= |
c406e779 | 1960 | for f in ${tmake_file} |
94f42018 | 1961 | do |
75bffa71 | 1962 | if test -f ${srcdir}/config/$f |
94f42018 | 1963 | then |
2ed26f6b | 1964 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
94f42018 DE |
1965 | fi |
1966 | done | |
2ed26f6b | 1967 | tmake_file="${tmake_file_}" |
5891b37d | 1968 | |
af5e4ada | 1969 | out_object_file=`basename $out_file .c`.o |
c49a6962 | 1970 | common_out_object_file=`basename $common_out_file .c`.o |
5891b37d | 1971 | |
75685792 | 1972 | tm_file_list="options.h" |
f938f60c | 1973 | tm_include_list="options.h insn-constants.h" |
af5e4ada | 1974 | for f in $tm_file; do |
64ccbc99 | 1975 | case $f in |
3ca43df7 RS |
1976 | ./* ) |
1977 | f=`echo $f | sed 's/^..//'` | |
1978 | tm_file_list="${tm_file_list} $f" | |
1979 | tm_include_list="${tm_include_list} $f" | |
1980 | ;; | |
d02af173 | 1981 | defaults.h ) |
e22340b0 ZW |
1982 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
1983 | tm_include_list="${tm_include_list} $f" | |
1984 | ;; | |
1985 | * ) | |
1986 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1987 | tm_include_list="${tm_include_list} config/$f" | |
1988 | ;; | |
64ccbc99 | 1989 | esac |
af5e4ada | 1990 | done |
46f18e7b | 1991 | |
11642c3a | 1992 | tm_p_file_list= |
e22340b0 | 1993 | tm_p_include_list= |
11642c3a | 1994 | for f in $tm_p_file; do |
4977bab6 ZW |
1995 | case $f in |
1996 | tm-preds.h ) | |
e22340b0 ZW |
1997 | tm_p_file_list="${tm_p_file_list} $f" |
1998 | tm_p_include_list="${tm_p_include_list} $f" | |
1999 | ;; | |
2000 | * ) | |
2001 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
2002 | tm_p_include_list="${tm_p_include_list} config/$f" | |
2003 | esac | |
2004 | done | |
2005 | ||
b4c522fa IB |
2006 | tm_d_file_list= |
2007 | tm_d_include_list="options.h insn-constants.h" | |
2008 | for f in $tm_d_file; do | |
2009 | case $f in | |
2010 | defaults.h ) | |
2011 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f" | |
2012 | tm_d_include_list="${tm_d_include_list} $f" | |
2013 | ;; | |
2014 | * ) | |
2015 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f" | |
2016 | tm_d_include_list="${tm_d_include_list} config/$f" | |
2017 | ;; | |
2018 | esac | |
2019 | done | |
2020 | ||
e22340b0 ZW |
2021 | xm_file_list= |
2022 | xm_include_list= | |
2023 | for f in $xm_file; do | |
2024 | case $f in | |
2025 | ansidecl.h ) | |
2026 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
2027 | xm_include_list="${xm_include_list} $f" | |
2028 | ;; | |
2029 | auto-host.h ) | |
2030 | xm_file_list="${xm_file_list} $f" | |
2031 | xm_include_list="${xm_include_list} $f" | |
2032 | ;; | |
2033 | * ) | |
2034 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
2035 | xm_include_list="${xm_include_list} config/$f" | |
2036 | ;; | |
4977bab6 | 2037 | esac |
11642c3a ZW |
2038 | done |
2039 | ||
af5e4ada | 2040 | host_xm_file_list= |
e22340b0 | 2041 | host_xm_include_list= |
af5e4ada | 2042 | for f in $host_xm_file; do |
64ccbc99 | 2043 | case $f in |
d02af173 | 2044 | ansidecl.h ) |
e22340b0 ZW |
2045 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
2046 | host_xm_include_list="${host_xm_include_list} $f" | |
2047 | ;; | |
e2500fed | 2048 | auto-host.h ) |
e22340b0 ZW |
2049 | host_xm_file_list="${host_xm_file_list} $f" |
2050 | host_xm_include_list="${host_xm_include_list} $f" | |
2051 | ;; | |
2052 | * ) | |
2053 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
2054 | host_xm_include_list="${host_xm_include_list} config/$f" | |
2055 | ;; | |
64ccbc99 | 2056 | esac |
af5e4ada DE |
2057 | done |
2058 | ||
2059 | build_xm_file_list= | |
2060 | for f in $build_xm_file; do | |
64ccbc99 | 2061 | case $f in |
d02af173 | 2062 | ansidecl.h ) |
e22340b0 ZW |
2063 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
2064 | build_xm_include_list="${build_xm_include_list} $f" | |
2065 | ;; | |
e2500fed | 2066 | auto-build.h | auto-host.h ) |
e22340b0 ZW |
2067 | build_xm_file_list="${build_xm_file_list} $f" |
2068 | build_xm_include_list="${build_xm_include_list} $f" | |
2069 | ;; | |
2070 | * ) | |
2071 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
2072 | build_xm_include_list="${build_xm_include_list} config/$f" | |
2073 | ;; | |
64ccbc99 | 2074 | esac |
af5e4ada | 2075 | done |
46f18e7b | 2076 | |
2989d30c GK |
2077 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
2078 | # cross-compiler which does not use the native headers and libraries. | |
a078a589 ZW |
2079 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
2080 | CROSS= AC_SUBST(CROSS) | |
2081 | ALL=all.internal AC_SUBST(ALL) | |
2082 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
0c90d48b | 2083 | BUILD_SYSTEM_HEADER_DIR=$SYSTEM_HEADER_DIR AC_SUBST(BUILD_SYSTEM_HEADER_DIR) |
b28250ab | 2084 | |
0c90d48b BE |
2085 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x || |
2086 | test x$build != x$host || test "x$with_build_sysroot" != x; then | |
2087 | if test "x$with_build_sysroot" != x; then | |
2088 | BUILD_SYSTEM_HEADER_DIR=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
2089 | else | |
2090 | BUILD_SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2091 | fi | |
b28250ab | 2092 | |
0c90d48b BE |
2093 | if test x$host != x$target |
2094 | then | |
2095 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
2096 | ALL=all.cross | |
2097 | SYSTEM_HEADER_DIR=$BUILD_SYSTEM_HEADER_DIR | |
2098 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
2099 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2100 | fi | |
46f18e7b | 2101 | |
0c90d48b BE |
2102 | if test "x$with_build_sysroot" != "x"; then |
2103 | target_header_dir="${with_build_sysroot}${native_system_header_dir}" | |
7d7d00ba HPN |
2104 | elif test "x$with_sysroot" = x; then |
2105 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include" | |
7d7d00ba HPN |
2106 | elif test "x$with_sysroot" = xyes; then |
2107 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}" | |
2108 | else | |
2109 | target_header_dir="${with_sysroot}${native_system_header_dir}" | |
2110 | fi | |
2111 | else | |
2112 | target_header_dir=${native_system_header_dir} | |
2113 | fi | |
2114 | ||
b39d221a EC |
2115 | # If this is a cross-compiler that does not |
2116 | # have its own set of headers then define | |
2117 | # inhibit_libc | |
2118 | ||
dc06db20 R |
2119 | # If this is using newlib, without having the headers available now, |
2120 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
fecd6201 ZW |
2121 | # This prevents libgcc2 from containing any code which requires libc |
2122 | # support. | |
a929bc28 | 2123 | : ${inhibit_libc=false} |
dc06db20 R |
2124 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
2125 | test x$with_newlib = xyes ; } && | |
7d7d00ba | 2126 | { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then |
160633c6 | 2127 | inhibit_libc=true |
b39d221a EC |
2128 | fi |
2129 | AC_SUBST(inhibit_libc) | |
2130 | ||
a078a589 ZW |
2131 | # When building gcc with a cross-compiler, we need to adjust things so |
2132 | # that the generator programs are still built with the native compiler. | |
52c0e446 | 2133 | # Also, we cannot run fixincludes. |
a078a589 ZW |
2134 | |
2135 | # These are the normal (build=host) settings: | |
eaf9f3b2 | 2136 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
bdd5dc28 | 2137 | CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) |
4977bab6 | 2138 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
bdd5dc28 | 2139 | BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) |
f8c33439 | 2140 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
a078a589 | 2141 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
587dc9c6 | 2142 | |
5148d2e3 L |
2143 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS) |
2144 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG) | |
2145 | ||
83599948 NS |
2146 | # And these apply if build != host, or we are generating coverage data |
2147 | if test x$build != x$host || test "x$coverage_flags" != x | |
af5e4ada | 2148 | then |
b11e4747 | 2149 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
c012dc48 | 2150 | BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)' |
f8c33439 | 2151 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
5148d2e3 L |
2152 | |
2153 | NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}} | |
2154 | NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}} | |
2155 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)' | |
2156 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)' | |
af5e4ada | 2157 | fi |
5148d2e3 L |
2158 | AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD) |
2159 | AC_SUBST(NO_PIE_FLAG_FOR_BUILD) | |
46f18e7b | 2160 | |
ae3a15bb DE |
2161 | # Expand extra_headers to include complete path. |
2162 | # This substitutes for lots of t-* files. | |
2163 | extra_headers_list= | |
b1ef58c8 NN |
2164 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
2165 | for file in ${extra_headers} ; do | |
2166 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
2167 | done | |
ae3a15bb | 2168 | |
1617e5ee GK |
2169 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
2170 | if test x"$use_gcc_tgmath" = xyes | |
2171 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
2172 | fi | |
2173 | ||
c38f02df ILT |
2174 | # Define collect2 in Makefile. |
2175 | case $host_can_use_collect2 in | |
2176 | no) collect2= ;; | |
2177 | *) collect2='collect2$(exeext)' ;; | |
2178 | esac | |
2179 | AC_SUBST([collect2]) | |
2180 | ||
af5e4ada | 2181 | # Add a definition of USE_COLLECT2 if system wants one. |
34a86c2b NN |
2182 | case $use_collect2 in |
2183 | no) use_collect2= ;; | |
2184 | "") ;; | |
2185 | *) | |
2186 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
2187 | xm_defines="${xm_defines} USE_COLLECT2" | |
c38f02df ILT |
2188 | case $host_can_use_collect2 in |
2189 | no) | |
2190 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
2191 | ;; | |
2192 | esac | |
34a86c2b NN |
2193 | ;; |
2194 | esac | |
af5e4ada | 2195 | |
1cd0b716 DK |
2196 | AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", |
2197 | [Define to the name of the LTO plugin DSO that must be | |
2198 | passed to the linker's -plugin=LIB option.]) | |
2199 | ||
630327c3 NN |
2200 | # --------------------------- |
2201 | # Assembler & linker features | |
2202 | # --------------------------- | |
2203 | ||
da0f6381 PB |
2204 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
2205 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
2206 | # However when ld-new is first executed from the build tree, libtool will | |
2207 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
2208 | # to the build tree. While doing this we need to use the previous-stage | |
2209 | # linker, or we have an infinite loop. The presence of a shell script as | |
2210 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
2211 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
2212 | # exec-tool will fail. | |
2213 | ||
2214 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
2215 | AC_PROG_LIBTOOL | |
2216 | AC_SUBST(objdir) | |
2217 | AC_SUBST(enable_fast_install) | |
2218 | ||
d869a8c4 NN |
2219 | # Identify the assembler which will work hand-in-glove with the newly |
2220 | # built GCC, so that we can examine its features. This is the assembler | |
2221 | # which will be driven by the driver program. | |
2222 | # | |
2223 | # If build != host, and we aren't building gas in-tree, we identify a | |
2224 | # build->target assembler and hope that it will have the same features | |
2225 | # as the host->target assembler we'll be using. | |
981d4858 JM |
2226 | gcc_cv_gas_major_version= |
2227 | gcc_cv_gas_minor_version= | |
a2f319ea | 2228 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
e8b05380 PB |
2229 | |
2230 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
2231 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
3ccc3a56 AO |
2232 | if test -x "$DEFAULT_ASSEMBLER"; then |
2233 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
6b1786aa | 2234 | elif test -f $gcc_cv_as_gas_srcdir/configure.ac \ |
08d105fa AO |
2235 | && test -f ../gas/Makefile \ |
2236 | && test x$build = x$host; then | |
e8b05380 PB |
2237 | gcc_cv_as=../gas/as-new$build_exeext |
2238 | elif test -x as$build_exeext; then | |
2239 | # Build using assembler in the current directory. | |
2240 | gcc_cv_as=./as$build_exeext | |
4a150fc8 | 2241 | elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2242 | gcc_cv_as="$AS_FOR_TARGET" |
2243 | else | |
2244 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
2245 | fi]) | |
2246 | ||
2247 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
2248 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
be0fe523 PB |
2249 | case "$ORIGINAL_AS_FOR_TARGET" in |
2250 | ./as | ./as$build_exeext) ;; | |
2251 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
2252 | esac | |
e8b05380 PB |
2253 | |
2254 | AC_MSG_CHECKING(what assembler to use) | |
2255 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
08d105fa AO |
2256 | # Single tree build which includes gas. We want to prefer it |
2257 | # over whatever linker top-level may have detected, since | |
2258 | # we'll use what we're building after installation anyway. | |
e8b05380 | 2259 | AC_MSG_RESULT(newly built gas) |
ad9c4d9f NN |
2260 | in_tree_gas=yes |
2261 | _gcc_COMPUTE_GAS_VERSION | |
5408ac6c HPN |
2262 | in_tree_gas_is_elf=no |
2263 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
2264 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
2265 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
2266 | then | |
2267 | in_tree_gas_is_elf=yes | |
2268 | fi | |
e8b05380 PB |
2269 | else |
2270 | AC_MSG_RESULT($gcc_cv_as) | |
2271 | in_tree_gas=no | |
981d4858 JM |
2272 | fi |
2273 | ||
40f213e6 L |
2274 | default_ld= |
2275 | AC_ARG_ENABLE(ld, | |
2276 | [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], | |
2277 | [case "${enableval}" in | |
2278 | no) | |
2279 | default_ld=ld.gold | |
2280 | ;; | |
2281 | esac]) | |
2282 | ||
95204cd5 | 2283 | install_gold_as_default=no |
40f213e6 L |
2284 | AC_ARG_ENABLE(gold, |
2285 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], | |
2286 | [case "${enableval}" in | |
2287 | default) | |
2288 | install_gold_as_default=yes | |
2289 | ;; | |
2290 | yes) | |
2291 | if test x${default_ld} != x; then | |
2292 | install_gold_as_default=yes | |
2293 | fi | |
2294 | ;; | |
2295 | no) | |
2296 | ;; | |
2297 | *) | |
2298 | AC_MSG_ERROR([invalid --enable-gold argument]) | |
2299 | ;; | |
95204cd5 | 2300 | esac]) |
40f213e6 | 2301 | |
d869a8c4 NN |
2302 | # Identify the linker which will work hand-in-glove with the newly |
2303 | # built GCC, so that we can examine its features. This is the linker | |
2304 | # which will be driven by the driver program. | |
2305 | # | |
2306 | # If build != host, and we aren't building gas in-tree, we identify a | |
2307 | # build->target linker and hope that it will have the same features | |
2308 | # as the host->target linker we'll be using. | |
275b60d6 JJ |
2309 | gcc_cv_gld_major_version= |
2310 | gcc_cv_gld_minor_version= | |
2311 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
40f213e6 | 2312 | gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold |
275b60d6 | 2313 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd |
e8b05380 PB |
2314 | |
2315 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
275b60d6 JJ |
2316 | if test -x "$DEFAULT_LINKER"; then |
2317 | gcc_cv_ld="$DEFAULT_LINKER" | |
40f213e6 L |
2318 | elif test $install_gold_as_default = yes \ |
2319 | && test -f $gcc_cv_ld_gold_srcdir/configure.ac \ | |
2320 | && test -f ../gold/Makefile \ | |
2321 | && test x$build = x$host; then | |
2322 | gcc_cv_ld=../gold/ld-new$build_exeext | |
6b1786aa | 2323 | elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \ |
08d105fa AO |
2324 | && test -f ../ld/Makefile \ |
2325 | && test x$build = x$host; then | |
e8b05380 PB |
2326 | gcc_cv_ld=../ld/ld-new$build_exeext |
2327 | elif test -x collect-ld$build_exeext; then | |
2328 | # Build using linker in the current directory. | |
2329 | gcc_cv_ld=./collect-ld$build_exeext | |
4a150fc8 | 2330 | elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2331 | gcc_cv_ld="$LD_FOR_TARGET" |
2332 | else | |
2333 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
2334 | fi]) | |
2335 | ||
5938f74d | 2336 | ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld |
36d21883 | 2337 | PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"` |
01a88d35 AP |
2338 | # if the PLUGIN_LD is set ld-new, just have it as ld |
2339 | # as that is the installed named. | |
3cecbdfa TS |
2340 | if test x$PLUGIN_LD_SUFFIX = xld-new \ |
2341 | || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then | |
01a88d35 AP |
2342 | PLUGIN_LD_SUFFIX=ld |
2343 | fi | |
5938f74d | 2344 | AC_ARG_WITH(plugin-ld, |
b88ecf55 | 2345 | [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])], |
5938f74d L |
2346 | [if test x"$withval" != x; then |
2347 | ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" | |
bcefc344 | 2348 | PLUGIN_LD_SUFFIX="$withval" |
5938f74d L |
2349 | fi]) |
2350 | AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) | |
36d21883 | 2351 | AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker]) |
5938f74d | 2352 | |
1dcc82c2 DK |
2353 | # Check to see if we are using gold instead of ld |
2354 | AC_MSG_CHECKING(whether we are using gold) | |
2355 | ld_is_gold=no | |
2356 | if test x$gcc_cv_ld != x; then | |
2357 | if $gcc_cv_ld --version 2>/dev/null | sed 1q \ | |
2358 | | grep "GNU gold" > /dev/null; then | |
2359 | ld_is_gold=yes | |
2360 | fi | |
2361 | fi | |
2362 | AC_MSG_RESULT($ld_is_gold) | |
2363 | ||
402565b6 LB |
2364 | AC_MSG_CHECKING(gold linker with split stack support as non default) |
2365 | # Check to see if default ld is not gold, but gold is | |
2366 | # available and has support for split stack. If gcc was configured | |
2367 | # with gold then no checking is done. | |
2368 | # | |
2369 | if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then | |
2370 | ||
2371 | # For platforms other than powerpc64*, enable as appropriate. | |
2372 | ||
2373 | gold_non_default=no | |
2374 | ld_gold=`which ${gcc_cv_ld}.gold` | |
2375 | # Make sure this gold has minimal split stack support | |
2376 | if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
2377 | ld_vers=`$ld_gold --version | sed 1q` | |
2378 | gold_vers=`echo $ld_vers | sed -n \ | |
2379 | -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'` | |
2380 | case $target in | |
2381 | # check that the gold version contains the complete split stack support | |
2382 | # on powerpc64 big and little endian | |
2383 | powerpc64*-*-*) | |
2384 | case "$gold_vers" in | |
2385 | 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes | |
2386 | ;; | |
2387 | *) gold_non_default=no | |
2388 | ;; | |
2389 | esac | |
2390 | ;; | |
2391 | esac | |
2392 | fi | |
2393 | if test $gold_non_default = yes; then | |
2394 | AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1, | |
2395 | [Define if the gold linker supports split stack and is available as a non-default]) | |
2396 | fi | |
2397 | fi | |
2398 | AC_MSG_RESULT($gold_non_default) | |
2399 | ||
e8b05380 PB |
2400 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld |
2401 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
be0fe523 PB |
2402 | case "$ORIGINAL_LD_FOR_TARGET" in |
2403 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
2404 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
2405 | esac | |
e8b05380 PB |
2406 | |
2407 | AC_MSG_CHECKING(what linker to use) | |
55b46574 RO |
2408 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \ |
2409 | || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then | |
08d105fa AO |
2410 | # Single tree build which includes ld. We want to prefer it |
2411 | # over whatever linker top-level may have detected, since | |
2412 | # we'll use what we're building after installation anyway. | |
e8b05380 | 2413 | AC_MSG_RESULT(newly built ld) |
34a86c2b | 2414 | in_tree_ld=yes |
5408ac6c HPN |
2415 | in_tree_ld_is_elf=no |
2416 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
8a45d680 AN |
2417 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
2418 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
5408ac6c | 2419 | in_tree_ld_is_elf=yes |
55b46574 RO |
2420 | elif test "$ld_is_gold" = yes; then |
2421 | in_tree_ld_is_elf=yes | |
5408ac6c | 2422 | fi |
6b1786aa | 2423 | 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 |
2424 | do |
2425 | changequote(,)dnl | |
81179208 | 2426 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f` |
275b60d6 JJ |
2427 | if test x$gcc_cv_gld_version != x; then |
2428 | break | |
2429 | fi | |
2430 | done | |
81179208 HPN |
2431 | case $gcc_cv_gld_version in |
2432 | VERSION=[0-9]*) ;; | |
2433 | changequote([,])dnl | |
2434 | *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;; | |
2435 | changequote(,)dnl | |
2436 | esac | |
275b60d6 JJ |
2437 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
2438 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
2439 | changequote([,])dnl | |
40f213e6 L |
2440 | ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext |
2441 | ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext | |
e8b05380 PB |
2442 | else |
2443 | AC_MSG_RESULT($gcc_cv_ld) | |
2444 | in_tree_ld=no | |
40f213e6 L |
2445 | gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext` |
2446 | ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext | |
2447 | ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext | |
275b60d6 JJ |
2448 | fi |
2449 | ||
40f213e6 L |
2450 | AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET) |
2451 | AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET) | |
2452 | ||
981d4858 | 2453 | # Figure out what nm we will be using. |
f9c1196a | 2454 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
e8b05380 | 2455 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
6b1786aa | 2456 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2457 | && test -f ../binutils/Makefile \ |
2458 | && test x$build = x$host; then | |
9f18db39 PB |
2459 | gcc_cv_nm=../binutils/nm-new$build_exeext |
2460 | elif test -x nm$build_exeext; then | |
57991eba | 2461 | gcc_cv_nm=./nm$build_exeext |
4a150fc8 | 2462 | elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2463 | gcc_cv_nm="$NM_FOR_TARGET" |
2464 | else | |
2465 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
2466 | fi]) | |
9f18db39 | 2467 | |
9f18db39 | 2468 | AC_MSG_CHECKING(what nm to use) |
e8b05380 PB |
2469 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
2470 | # Single tree build which includes binutils. | |
2471 | AC_MSG_RESULT(newly built nm) | |
2472 | in_tree_nm=yes | |
2473 | else | |
2474 | AC_MSG_RESULT($gcc_cv_nm) | |
2475 | in_tree_nm=no | |
2476 | fi | |
2477 | ||
2478 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
2479 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
be0fe523 PB |
2480 | case "$ORIGINAL_NM_FOR_TARGET" in |
2481 | ./nm | ./nm$build_exeext) ;; | |
2482 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
2483 | esac | |
2484 | ||
981d4858 | 2485 | |
3cae5780 | 2486 | # Figure out what objdump we will be using. |
e8b05380 | 2487 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
6b1786aa | 2488 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2489 | && test -f ../binutils/Makefile \ |
2490 | && test x$build = x$host; then | |
f9c1196a | 2491 | # Single tree build which includes binutils. |
9f18db39 | 2492 | gcc_cv_objdump=../binutils/objdump$build_exeext |
d739199a DJ |
2493 | elif test -x objdump$build_exeext; then |
2494 | gcc_cv_objdump=./objdump$build_exeext | |
4a150fc8 | 2495 | elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2496 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" |
2497 | else | |
2498 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2499 | fi]) | |
d739199a | 2500 | |
d739199a | 2501 | AC_MSG_CHECKING(what objdump to use) |
e8b05380 PB |
2502 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2503 | # Single tree build which includes binutils. | |
2504 | AC_MSG_RESULT(newly built objdump) | |
2505 | elif test x$gcc_cv_objdump = x; then | |
2506 | AC_MSG_RESULT(not found) | |
2507 | else | |
2508 | AC_MSG_RESULT($gcc_cv_objdump) | |
2509 | fi | |
3cae5780 | 2510 | |
6e97481b JJ |
2511 | # Figure out what readelf we will be using. |
2512 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
6b1786aa | 2513 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
6e97481b JJ |
2514 | && test -f ../binutils/Makefile \ |
2515 | && test x$build = x$host; then | |
2516 | # Single tree build which includes binutils. | |
2517 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2518 | elif test -x readelf$build_exeext; then | |
2519 | gcc_cv_readelf=./readelf$build_exeext | |
32a18c8c L |
2520 | elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then |
2521 | gcc_cv_readelf="$READELF_FOR_TARGET" | |
6e97481b | 2522 | else |
32a18c8c | 2523 | AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET) |
6e97481b JJ |
2524 | fi]) |
2525 | ||
2526 | AC_MSG_CHECKING(what readelf to use) | |
2527 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2528 | # Single tree build which includes binutils. | |
2529 | AC_MSG_RESULT(newly built readelf) | |
2530 | elif test x$gcc_cv_readelf = x; then | |
2531 | AC_MSG_RESULT(not found) | |
2532 | else | |
2533 | AC_MSG_RESULT($gcc_cv_readelf) | |
2534 | fi | |
2535 | ||
e4a9a572 IS |
2536 | # Figure out what otool we will be using. |
2537 | AS_VAR_SET_IF(gcc_cv_otool,, [ | |
2538 | if test -x otool$build_exeext; then | |
2539 | gcc_cv_otool=./otool$build_exeext | |
2540 | elif ( set dummy $OTOOL_FOR_TARGET; test -x $[2] ); then | |
2541 | gcc_cv_otool="$OTOOL_FOR_TARGET" | |
2542 | else | |
2543 | AC_PATH_PROG(gcc_cv_otool, $OTOOL_FOR_TARGET) | |
2544 | fi]) | |
2545 | ||
2546 | AC_MSG_CHECKING(what otool to use) | |
2547 | if test x$gcc_cv_otool = x; then | |
2548 | AC_MSG_RESULT(not found) | |
2549 | else | |
2550 | AC_MSG_RESULT($gcc_cv_otool) | |
2551 | fi | |
2552 | ||
981d4858 | 2553 | # Figure out what assembler alignment features are present. |
8ada417f ZW |
2554 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2555 | [2,6,0],, | |
2556 | [.balign 4 | |
2557 | .p2align 2],, | |
2558 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2559 | [Define if your assembler supports .balign and .p2align.])]) | |
2560 | ||
2561 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2562 | [2,8,0],, | |
2563 | [.p2align 4,,7],, | |
2564 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2565 | [Define if your assembler supports specifying the maximum number | |
2566 | of bytes to skip when using the GAS .p2align command.])]) | |
2567 | ||
5708d18d MS |
2568 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2569 | [2,8,0],, | |
2570 | [.literal16],, | |
2571 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2572 | [Define if your assembler supports .literal16.])]) | |
2573 | ||
8ada417f ZW |
2574 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2575 | [elf,2,9,0],, | |
2576 | [conftest_label1: .word 0 | |
d1accaa3 JJ |
2577 | .subsection -1 |
2578 | conftest_label2: .word 0 | |
8ada417f ZW |
2579 | .previous], |
2580 | [if test x$gcc_cv_nm != x; then | |
2581 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2582 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2583 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2584 | then : | |
2585 | else gcc_cv_as_subsection_m1=yes | |
2586 | fi | |
2587 | rm -f conftest.nm1 conftest.nm2 | |
2588 | fi], | |
2589 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2590 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2591 | emitting at the beginning of your section.])]) | |
2592 | ||
2593 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2594 | [2,2,0],, | |
2595 | [ .weak foobar],, | |
2596 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2597 | ||
a0203ca7 AO |
2598 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2599 | [2,17,0],, | |
2600 | [ .weakref foobar, barfnot],, | |
2601 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2602 | ||
e41f3691 JDA |
2603 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2604 | [2,15,91],, | |
2605 | [ .SPACE $TEXT$ | |
2606 | .NSUBSPA $CODE$,COMDAT],, | |
2607 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2608 | ||
8ada417f ZW |
2609 | # .hidden needs to be supported in both the assembler and the linker, |
2610 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2611 | # This is irritatingly difficult to feature test for; we have to check the | |
2612 | # date string after the version number. If we've got an in-tree | |
2613 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2614 | # to be safe. | |
2615 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
8d91472f DE |
2616 | case "${target}" in |
2617 | *-*-aix*) | |
2618 | conftest_s=' .globl foobar,hidden' | |
2619 | ;; | |
2620 | *) | |
2621 | conftest_s=' .hidden foobar | |
2622 | foobar:' | |
2623 | ;; | |
2624 | esac | |
8ada417f | 2625 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, |
8d91472f | 2626 | [elf,2,13,0],, [$conftest_s]) |
ee610fcd RO |
2627 | case "${target}" in |
2628 | *-*-darwin*) | |
2629 | # Darwin as has some visibility support, though with a different syntax. | |
2630 | gcc_cv_as_hidden=yes | |
2631 | ;; | |
2632 | esac | |
8ada417f | 2633 | |
ba885ec5 NS |
2634 | # gnu_indirect_function type is an extension proposed at |
2635 | # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime | |
2636 | # selection of function implementation | |
f6c5fbfd NS |
2637 | AC_ARG_ENABLE(gnu-indirect-function, |
2638 | [AS_HELP_STRING([--enable-gnu-indirect-function], | |
2639 | [enable the use of the @gnu_indirect_function to glibc systems])], | |
2640 | [case $enable_gnu_indirect_function in | |
2641 | yes | no) ;; | |
2642 | *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function. | |
2643 | Valid choices are 'yes' and 'no'.]) ;; | |
2644 | esac], | |
2645 | [enable_gnu_indirect_function="$default_gnu_indirect_function"]) | |
2f251a05 AI |
2646 | |
2647 | gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi` | |
2648 | AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif, | |
2649 | [Define if your system supports gnu indirect functions.]) | |
2650 | ||
ba885ec5 | 2651 | |
10ca6198 JJ |
2652 | changequote(,)dnl |
2653 | if test $in_tree_ld != yes ; then | |
2654 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
55b46574 RO |
2655 | if echo "$ld_ver" | grep GNU > /dev/null; then |
2656 | if test x"$ld_is_gold" = xyes; then | |
2657 | # GNU gold --version looks like this: | |
2658 | # | |
2659 | # GNU gold (GNU Binutils 2.21.51.20110225) 1.11 | |
2660 | # | |
2661 | # We extract the binutils version which is more familiar and specific | |
2662 | # than the gold version. | |
2663 | ld_vers=`echo $ld_ver | sed -n \ | |
2664 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
2665 | else | |
2666 | # GNU ld --version looks like this: | |
2667 | # | |
2668 | # GNU ld (GNU Binutils) 2.21.51.20110225 | |
2669 | ld_vers=`echo $ld_ver | sed -n \ | |
2670 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2671 | fi | |
10ca6198 JJ |
2672 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
2673 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2674 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2675 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
55c4f715 RO |
2676 | else |
2677 | case "${target}" in | |
2678 | *-*-solaris2*) | |
dea82cdb | 2679 | # Solaris 2 ld -V output looks like this for a regular version: |
55c4f715 | 2680 | # |
dea82cdb RO |
2681 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 |
2682 | # | |
2683 | # but test versions add stuff at the end: | |
2684 | # | |
2685 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 | |
2686 | # | |
2687 | # In Solaris 11.4, this was changed to | |
2688 | # | |
2689 | # ld: Solaris ELF Utilities: 11.4-1.3123 | |
2690 | # | |
2691 | # ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version | |
2692 | # numbers can be used in ld.so.1 feature checks even if a different | |
2693 | # linker is configured. | |
55c4f715 | 2694 | ld_ver=`$gcc_cv_ld -V 2>&1` |
dea82cdb | 2695 | if echo "$ld_ver" | $EGREP 'Solaris Link Editors|Solaris ELF Utilities' > /dev/null; then |
55c4f715 | 2696 | ld_vers=`echo $ld_ver | sed -n \ |
dea82cdb | 2697 | -e 's,^.*: \(5\|1[0-9]\)\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\2,p'` |
55c4f715 RO |
2698 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2699 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2700 | fi | |
2701 | ;; | |
2702 | esac | |
10ca6198 JJ |
2703 | fi |
2704 | fi | |
2705 | changequote([,])dnl | |
2706 | ||
8ada417f | 2707 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, |
e5dfb95f | 2708 | [[if test $in_tree_ld = yes ; then |
8ada417f ZW |
2709 | gcc_cv_ld_hidden=no |
2710 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2711 | && test $in_tree_ld_is_elf = yes; then | |
2712 | gcc_cv_ld_hidden=yes | |
2713 | fi | |
2714 | else | |
2715 | gcc_cv_ld_hidden=yes | |
55b46574 RO |
2716 | if test x"$ld_is_gold" = xyes; then |
2717 | : | |
2718 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
e2769e90 HPN |
2719 | case "${target}" in |
2720 | mmix-knuth-mmixware) | |
2721 | # The linker emits by default mmo, not ELF, so "no" is appropriate. | |
2722 | gcc_cv_ld_hidden=no | |
2723 | ;; | |
2724 | esac | |
8ada417f ZW |
2725 | if test 0"$ld_date" -lt 20020404; then |
2726 | if test -n "$ld_date"; then | |
2727 | # If there was date string, but was earlier than 2002-04-04, fail | |
2728 | gcc_cv_ld_hidden=no | |
2729 | elif test -z "$ld_vers"; then | |
2730 | # If there was no date string nor ld version number, something is wrong | |
2731 | gcc_cv_ld_hidden=no | |
2732 | else | |
8ada417f ZW |
2733 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2734 | if test "$ld_vers_major" -lt 2; then | |
2735 | gcc_cv_ld_hidden=no | |
2736 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2737 | gcc_cv_ld_hidden="no" | |
2738 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2739 | gcc_cv_ld_hidden=no | |
c72931a6 | 2740 | fi |
8ada417f | 2741 | fi |
789b7de5 | 2742 | fi |
8ada417f | 2743 | else |
28690784 | 2744 | case "${target}" in |
8d91472f DE |
2745 | *-*-aix[789]*) |
2746 | gcc_cv_ld_hidden=yes | |
2747 | ;; | |
ee610fcd RO |
2748 | *-*-darwin*) |
2749 | # Darwin ld has some visibility support. | |
2750 | gcc_cv_ld_hidden=yes | |
2751 | ;; | |
b0fd7d27 | 2752 | hppa64*-*-hpux* | ia64*-*-hpux*) |
28690784 JDA |
2753 | gcc_cv_ld_hidden=yes |
2754 | ;; | |
ccd1242e | 2755 | *-*-solaris2*) |
a93e1899 RO |
2756 | # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but |
2757 | # .symbolic was only added in Solaris 9 12/02. | |
5e87dc23 RO |
2758 | gcc_cv_ld_hidden=yes |
2759 | ;; | |
28690784 JDA |
2760 | *) |
2761 | gcc_cv_ld_hidden=no | |
2762 | ;; | |
2763 | esac | |
8ada417f | 2764 | fi |
e5dfb95f | 2765 | fi]]) |
8ada417f | 2766 | libgcc_visibility=no |
9e944a16 | 2767 | AC_SUBST(libgcc_visibility) |
232b67d9 | 2768 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0f31374d | 2769 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
8ada417f ZW |
2770 | libgcc_visibility=yes |
2771 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2772 | [Define if your assembler and linker support .hidden.]) | |
2773 | fi | |
6a9c5260 | 2774 | |
e73da78e RO |
2775 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2776 | gcc_cv_ld_ro_rw_mix=unknown | |
2777 | if test $in_tree_ld = yes ; then | |
2778 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2779 | && test $in_tree_ld_is_elf = yes; then | |
2780 | gcc_cv_ld_ro_rw_mix=read-write | |
2781 | fi | |
2782 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2783 | echo '.section myfoosect, "a"' > conftest1.s | |
2784 | echo '.section myfoosect, "aw"' > conftest2.s | |
2785 | echo '.byte 1' >> conftest2.s | |
2786 | echo '.section myfoosect, "a"' > conftest3.s | |
2787 | echo '.byte 0' >> conftest3.s | |
2788 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2789 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2790 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2791 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2792 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2793 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2794 | | sed -e '/myfoosect/!d' -e N` | |
2795 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2796 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2797 | gcc_cv_ld_ro_rw_mix=read-only | |
2798 | else | |
2799 | gcc_cv_ld_ro_rw_mix=read-write | |
2800 | fi | |
2801 | fi | |
2802 | fi | |
2803 | changequote(,)dnl | |
2804 | rm -f conftest.* conftest[123].* | |
2805 | changequote([,])dnl | |
2806 | fi | |
2807 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2808 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2809 | [Define if your linker links a mix of read-only | |
2810 | and read-write sections into a read-write section.]) | |
2811 | fi | |
2812 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2813 | ||
e9c9f128 JJ |
2814 | gcc_AC_INITFINI_ARRAY |
2815 | ||
8ada417f ZW |
2816 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2817 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2818 | [elf,2,11,0],, | |
2819 | [ .data | |
b7460f24 RH |
2820 | .uleb128 L2 - L1 |
2821 | L1: | |
2822 | .uleb128 1280 | |
2823 | .sleb128 -1010 | |
8ada417f | 2824 | L2:], |
e5dfb95f | 2825 | [[# GAS versions before 2.11 do not support uleb128, |
8ada417f ZW |
2826 | # despite appearing to. |
2827 | # ??? There exists an elf-specific test that will crash | |
2828 | # the assembler. Perhaps it's better to figure out whether | |
2829 | # arbitrary sections are supported and try the test. | |
bace148a | 2830 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
8ada417f | 2831 | if echo "$as_ver" | grep GNU > /dev/null; then |
ddcd0f6f | 2832 | as_vers=`echo $as_ver | sed -n \ |
115e6e55 | 2833 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
ddcd0f6f BS |
2834 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2835 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
8ada417f ZW |
2836 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2837 | then : | |
2838 | else gcc_cv_as_leb128=yes | |
2839 | fi | |
e5dfb95f | 2840 | fi]], |
8ada417f | 2841 | [AC_DEFINE(HAVE_AS_LEB128, 1, |
61214be1 TS |
2842 | [Define if your assembler supports .sleb128 and .uleb128.])], |
2843 | [AC_DEFINE(HAVE_AS_LEB128, 0, | |
8ada417f ZW |
2844 | [Define if your assembler supports .sleb128 and .uleb128.])]) |
2845 | ||
a836f142 RO |
2846 | # Determine if an .eh_frame section is read-only. |
2847 | gcc_fn_eh_frame_ro () { | |
2848 | $gcc_cv_as $1 -o conftest.o conftest.s > /dev/null 2>&1 && \ | |
2849 | $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2850 | sed -e '/.eh_frame/!d' -e N | grep READONLY > /dev/null | |
2851 | } | |
2852 | ||
d4ea4622 RH |
2853 | # Check if we have assembler support for unwind directives. |
2854 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
6e60703f | 2855 | ,, |
d4ea4622 RH |
2856 | [ .text |
2857 | .cfi_startproc | |
2858 | .cfi_offset 0, 0 | |
2859 | .cfi_same_value 1 | |
2860 | .cfi_def_cfa 1, 2 | |
2861 | .cfi_escape 1, 2, 3, 4, 5 | |
e73da78e RO |
2862 | .cfi_endproc], |
2863 | [case "$target" in | |
2864 | *-*-solaris*) | |
2865 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2866 | # read-only and read-write sections, we need to make sure that the | |
2867 | # assembler used emits read-write .eh_frame sections. | |
a836f142 RO |
2868 | if test "x$gcc_cv_ld_ro_rw_mix" = xread-write; then |
2869 | gcc_cv_as_cfi_directive=yes | |
2870 | elif test "x$gcc_cv_objdump" = x; then | |
2871 | # No objdump, err on the side of caution. | |
2872 | gcc_cv_as_cfi_directive=no | |
2873 | else | |
2874 | if test x$gas = xyes; then | |
2875 | as_32_opt="--32" | |
2876 | as_64_opt="--64" | |
e73da78e | 2877 | else |
a836f142 RO |
2878 | as_32_opt="-m32" |
2879 | as_64_opt="-m64" | |
e73da78e | 2880 | fi |
a836f142 RO |
2881 | case "$target" in |
2882 | sparc*-*-solaris2.*) | |
2883 | # On Solaris/SPARC, .eh_frame sections should always be read-write. | |
2884 | if gcc_fn_eh_frame_ro $as_32_opt \ | |
2885 | || gcc_fn_eh_frame_ro $as_64_opt; then | |
2886 | gcc_cv_as_cfi_directive=no | |
2887 | else | |
2888 | gcc_cv_as_cfi_directive=yes | |
2889 | fi | |
2890 | ;; | |
2891 | i?86-*-solaris2.* | x86_64-*-solaris2.*) | |
2892 | # On Solaris/x86, make sure that GCC and assembler agree on using | |
2893 | # read-only .eh_frame sections for 64-bit. | |
2894 | if gcc_fn_eh_frame_ro $as_32_opt; then | |
2895 | gcc_cv_as_cfi_directive=no | |
2896 | elif gcc_fn_eh_frame_ro $as_64_opt; then | |
2897 | gcc_cv_as_cfi_directive=yes | |
2898 | else | |
2899 | gcc_cv_as_cfi_directive=no | |
2900 | fi | |
2901 | ;; | |
2902 | esac | |
e73da78e RO |
2903 | fi |
2904 | ;; | |
2905 | *-*-*) | |
2906 | gcc_cv_as_cfi_directive=yes | |
2907 | ;; | |
2908 | esac]) | |
92053f38 | 2909 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then |
6e97481b JJ |
2910 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, |
2911 | ,, | |
2912 | [ .text | |
2913 | .cfi_startproc | |
2914 | .cfi_adjust_cfa_offset 64 | |
7ac22e17 | 2915 | .skip 75040, 0 |
6e97481b JJ |
2916 | .cfi_adjust_cfa_offset 128 |
2917 | .cfi_endproc], | |
e5dfb95f | 2918 | [[ |
92053f38 | 2919 | if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \ |
7ac22e17 | 2920 | | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then |
6e97481b JJ |
2921 | gcc_cv_as_cfi_advance_working=yes |
2922 | fi | |
e5dfb95f | 2923 | ]]) |
6e97481b | 2924 | else |
92053f38 | 2925 | # no objdump, err on the side of caution |
66f91112 | 2926 | gcc_cv_as_cfi_advance_working=no |
6e97481b | 2927 | fi |
174425ad | 2928 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE) |
d4ea4622 | 2929 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
6e97481b JJ |
2930 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2931 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
058514b3 RH |
2932 | [Define 0/1 if your assembler supports CFI directives.]) |
2933 | ||
174425ad | 2934 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE) |
058514b3 | 2935 | gcc_GAS_CHECK_FEATURE([cfi personality directive], |
6e60703f | 2936 | gcc_cv_as_cfi_personality_directive, ,, |
058514b3 | 2937 | [ .text |
042628f9 | 2938 | .cfi_startproc |
058514b3 RH |
2939 | .cfi_personality 0, symbol |
2940 | .cfi_endproc]) | |
2941 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
22e05272 | 2942 | [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], |
058514b3 | 2943 | [Define 0/1 if your assembler supports .cfi_personality.]) |
d4ea4622 | 2944 | |
7d45fb94 JJ |
2945 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
2946 | gcc_cv_as_cfi_sections_directive, ,, | |
2947 | [ .text | |
2948 | .cfi_sections .debug_frame, .eh_frame | |
2949 | .cfi_startproc | |
92053f38 RH |
2950 | .cfi_endproc], |
2951 | [case $target_os in | |
abe64d9e | 2952 | win32 | pe | cygwin* | mingw32*) |
92053f38 RH |
2953 | # Need to check that we generated the correct relocation for the |
2954 | # .debug_frame section. This was fixed for binutils 2.21. | |
2955 | gcc_cv_as_cfi_sections_directive=no | |
2956 | if test "x$gcc_cv_objdump" != x; then | |
2957 | if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \ | |
2958 | grep secrel > /dev/null; then | |
2959 | gcc_cv_as_cfi_sections_directive=yes | |
2960 | fi | |
2961 | fi | |
2962 | ;; | |
2963 | *) | |
2964 | gcc_cv_as_cfi_sections_directive=yes | |
2965 | ;; | |
2966 | esac]) | |
174425ad | 2967 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) |
7d45fb94 | 2968 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, |
22e05272 | 2969 | [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], |
7d45fb94 JJ |
2970 | [Define 0/1 if your assembler supports .cfi_sections.]) |
2971 | ||
8ada417f ZW |
2972 | # GAS versions up to and including 2.11.0 may mis-optimize |
2973 | # .eh_frame data. | |
2974 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2975 | [elf,2,12,0],, | |
2976 | [ .text | |
c64688ae RH |
2977 | .LFB1: |
2978 | .4byte 0 | |
2979 | .L1: | |
2980 | .4byte 0 | |
2981 | .LFE1: | |
2982 | .section .eh_frame,"aw",@progbits | |
2983 | __FRAME_BEGIN__: | |
2984 | .4byte .LECIE1-.LSCIE1 | |
2985 | .LSCIE1: | |
2986 | .4byte 0x0 | |
2987 | .byte 0x1 | |
2988 | .ascii "z\0" | |
2989 | .byte 0x1 | |
2990 | .byte 0x78 | |
2991 | .byte 0x1a | |
2992 | .byte 0x0 | |
2993 | .byte 0x4 | |
2994 | .4byte 1 | |
2995 | .p2align 1 | |
2996 | .LECIE1: | |
2997 | .LSFDE1: | |
2998 | .4byte .LEFDE1-.LASFDE1 | |
2999 | .LASFDE1: | |
3000 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
3001 | .4byte .LFB1 | |
3002 | .4byte .LFE1-.LFB1 | |
3003 | .byte 0x4 | |
3004 | .4byte .LFE1-.LFB1 | |
3005 | .byte 0x4 | |
3006 | .4byte .L1-.LFB1 | |
8ada417f | 3007 | .LEFDE1:], |
ba479fd2 NN |
3008 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
3009 | cat > conftest.lit <<EOF | |
c64688ae RH |
3010 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
3011 | 0010 01000000 12000000 18000000 00000000 ................ | |
ba479fd2 | 3012 | 0020 08000000 04080000 0044 .........D @&t@ |
01efb963 | 3013 | EOF |
ba479fd2 | 3014 | cat > conftest.big <<EOF |
01efb963 AS |
3015 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
3016 | 0010 00000001 00000012 00000018 00000000 ................ | |
ba479fd2 | 3017 | 0020 00000008 04000000 0844 .........D @&t@ |
c64688ae | 3018 | EOF |
8ada417f ZW |
3019 | # If the assembler didn't choke, and we can objdump, |
3020 | # and we got the correct data, then succeed. | |
dbc02e7f AS |
3021 | # The text in the here-document typically retains its unix-style line |
3022 | # endings, while the output of objdump will use host line endings. | |
3023 | # Therefore, use diff -b for the comparisons. | |
8ada417f ZW |
3024 | if test x$gcc_cv_objdump != x \ |
3025 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
3026 | | tail -3 > conftest.got \ | |
dbc02e7f AS |
3027 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
3028 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
8ada417f ZW |
3029 | then |
3030 | gcc_cv_as_eh_frame=yes | |
3031 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
3032 | gcc_cv_as_eh_frame=buggy | |
3033 | else | |
3034 | # Uh oh, what do we do now? | |
3035 | gcc_cv_as_eh_frame=no | |
3036 | fi]) | |
3037 | ||
3038 | if test $gcc_cv_as_eh_frame = buggy; then | |
3039 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
3040 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
201556f0 | 3041 | fi |
201556f0 | 3042 | |
f8d70404 RO |
3043 | # Test if the assembler supports the section flag 'e' or #exclude for |
3044 | # specifying an excluded section. | |
3045 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e, | |
3046 | [2,22,51], [--fatal-warnings], | |
3047 | [.section foo1,"e" | |
3048 | .byte 0,0,0,0]) | |
3049 | if test $gcc_cv_as_section_exclude_e = no; then | |
3050 | case "${target}" in | |
3051 | # Solaris as uses #exclude instead. | |
3052 | *-*-solaris2*) | |
3053 | case "${target}" in | |
3054 | sparc*-*-solaris2*) | |
3055 | conftest_s='.section "foo1", #exclude' | |
3056 | ;; | |
3057 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3058 | conftest_s='.section foo1, #exclude' | |
3059 | ;; | |
3060 | esac | |
3061 | ;; | |
3062 | esac | |
3063 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,, | |
3064 | [$conftest_s | |
3065 | .byte 0,0,0,0]) | |
3066 | fi | |
3067 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE, | |
3068 | [`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`], | |
3069 | [Define if your assembler supports specifying the exclude section flag.]) | |
3070 | ||
8ada417f ZW |
3071 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
3072 | [elf,2,12,0], [--fatal-warnings], | |
5d4856a0 | 3073 | [.section .rodata.str, "aMS", @progbits, 1]) |
c18a5b6c MM |
3074 | if test $gcc_cv_as_shf_merge = no; then |
3075 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
3076 | [elf,2,12,0], [--fatal-warnings], | |
3077 | [.section .rodata.str, "aMS", %progbits, 1]) | |
3078 | fi | |
5d4856a0 RO |
3079 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
3080 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3081 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
8ada417f | 3082 | |
dc6b6330 RO |
3083 | gcc_cv_ld_aligned_shf_merge=yes |
3084 | case "$target" in | |
dc6b6330 RO |
3085 | # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for |
3086 | # alignment > 1. | |
3087 | sparc*-*-solaris2.11*) | |
3088 | if test x"$gnu_ld" = xno \ | |
3089 | && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then | |
3090 | gcc_cv_ld_aligned_shf_merge=no | |
3091 | fi | |
3092 | ;; | |
3093 | esac | |
3094 | AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE, | |
3095 | [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3096 | [Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.]) | |
3097 | ||
01704e5a RO |
3098 | gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,, |
3099 | [.stabs "gcc2_compiled.",60,0,0,0],, | |
3100 | [AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1, | |
3101 | [Define if your assembler supports .stabs.])]) | |
3102 | ||
2ca48caa RO |
3103 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)], |
3104 | gcc_cv_as_comdat_group, | |
11176d2a | 3105 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
3106 | [.section .text,"axG",@progbits,.foo,comdat]) |
3107 | if test $gcc_cv_as_comdat_group = yes; then | |
3108 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3109 | gcc_cv_as_comdat_group_group=no |
c18a5b6c | 3110 | else |
2ca48caa RO |
3111 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)], |
3112 | gcc_cv_as_comdat_group_percent, | |
11176d2a | 3113 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c | 3114 | [.section .text,"axG",%progbits,.foo,comdat]) |
2ca48caa RO |
3115 | if test $gcc_cv_as_comdat_group_percent = yes; then |
3116 | gcc_cv_as_comdat_group_group=no | |
3117 | else | |
3118 | case "${target}" in | |
3119 | # Sun as uses a completely different syntax. | |
3120 | *-*-solaris2*) | |
3121 | case "${target}" in | |
3122 | sparc*-*-solaris2*) | |
3123 | conftest_s=' | |
3124 | .group foo,".text%foo",#comdat | |
3125 | .section ".text%foo", #alloc,#execinstr,#progbits | |
3126 | .globl foo | |
3127 | foo: | |
3128 | ' | |
3129 | ;; | |
ccd1242e | 3130 | i?86-*-solaris2* | x86_64-*-solaris2*) |
2ca48caa RO |
3131 | conftest_s=' |
3132 | .group foo,.text%foo,#comdat | |
3133 | .section .text%foo, "ax", @progbits | |
3134 | .globl foo | |
3135 | foo: | |
3136 | ' | |
3137 | ;; | |
3138 | esac | |
3139 | gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)], | |
3140 | gcc_cv_as_comdat_group_group, | |
3141 | ,, [$conftest_s]) | |
3142 | ;; | |
3143 | esac | |
56e675ce RO |
3144 | if test -z "${gcc_cv_as_comdat_group_group+set}"; then |
3145 | gcc_cv_as_comdat_group_group=no | |
3146 | fi | |
2ca48caa | 3147 | fi |
c18a5b6c | 3148 | fi |
1dcc82c2 DK |
3149 | if test x"$ld_is_gold" = xyes; then |
3150 | comdat_group=yes | |
3151 | elif test $in_tree_ld = yes ; then | |
39ba7b7d JB |
3152 | comdat_group=no |
3153 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3154 | && test $in_tree_ld_is_elf = yes; then | |
3155 | comdat_group=yes | |
3156 | fi | |
55c4f715 | 3157 | elif echo "$ld_ver" | grep GNU > /dev/null; then |
11176d2a JB |
3158 | comdat_group=yes |
3159 | if test 0"$ld_date" -lt 20050308; then | |
3160 | if test -n "$ld_date"; then | |
3161 | # If there was date string, but was earlier than 2005-03-08, fail | |
3162 | comdat_group=no | |
3163 | elif test "$ld_vers_major" -lt 2; then | |
3164 | comdat_group=no | |
3165 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
3166 | comdat_group=no | |
3167 | fi | |
3168 | fi | |
1cf0118d | 3169 | else |
55c4f715 RO |
3170 | changequote(,)dnl |
3171 | case "${target}" in | |
3172 | *-*-solaris2.1[1-9]*) | |
2ca48caa | 3173 | comdat_group=no |
55c4f715 RO |
3174 | # Sun ld has COMDAT group support since Solaris 9, but it doesn't |
3175 | # interoperate with GNU as until Solaris 11 build 130, i.e. ld | |
3176 | # version 1.688. | |
3177 | # | |
2ca48caa RO |
3178 | # If using Sun as for COMDAT group as emitted by GCC, one needs at |
3179 | # least ld version 1.2267. | |
3180 | if test "$ld_vers_major" -gt 1; then | |
55c4f715 | 3181 | comdat_group=yes |
2ca48caa RO |
3182 | elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then |
3183 | comdat_group=yes | |
3184 | elif test "$ld_vers_minor" -ge 2267; then | |
3185 | comdat_group=yes | |
55c4f715 RO |
3186 | fi |
3187 | ;; | |
3188 | *) | |
3189 | # Assume linkers other than GNU ld don't support COMDAT group. | |
3190 | comdat_group=no | |
3191 | ;; | |
3192 | esac | |
3193 | changequote([,])dnl | |
1cf0118d | 3194 | fi |
55c4f715 RO |
3195 | # Allow overriding the automatic COMDAT group tests above. |
3196 | AC_ARG_ENABLE(comdat, | |
3197 | [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])], | |
3198 | [comdat_group="$enable_comdat"]) | |
1cf0118d RO |
3199 | if test $comdat_group = no; then |
3200 | gcc_cv_as_comdat_group=no | |
3201 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3202 | gcc_cv_as_comdat_group_group=no |
11176d2a JB |
3203 | fi |
3204 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
2ca48caa RO |
3205 | [`if test $gcc_cv_as_comdat_group = yes \ |
3206 | || test $gcc_cv_as_comdat_group_percent = yes \ | |
3207 | || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`], | |
11176d2a | 3208 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
c18a5b6c | 3209 | |
af2e3244 RO |
3210 | # Restrict this test to Solaris/x86: other targets define this statically. |
3211 | case "${target}" in | |
3212 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3213 | AC_MSG_CHECKING(support for hidden thunks in linkonce sections) | |
3214 | if test $in_tree_ld = yes || echo "$ld_ver" | grep GNU > /dev/null; then | |
3215 | hidden_linkonce=yes | |
3216 | else | |
3217 | case "${target}" in | |
3218 | # Full support for hidden thunks in linkonce sections only appeared in | |
3219 | # Solaris 11/OpenSolaris. | |
3220 | *-*-solaris2.1[[1-9]]*) | |
3221 | hidden_linkonce=yes | |
3222 | ;; | |
3223 | *) | |
3224 | hidden_linkonce=no | |
3225 | ;; | |
3226 | esac | |
3227 | fi | |
3228 | AC_MSG_RESULT($hidden_linkonce) | |
3229 | AC_DEFINE_UNQUOTED(USE_HIDDEN_LINKONCE, | |
3230 | [`if test $hidden_linkonce = yes; then echo 1; else echo 0; fi`], | |
3231 | [Define 0/1 if your linker supports hidden thunks in linkonce sections.]) | |
3232 | ;; | |
3233 | esac | |
3234 | ||
894f597f AO |
3235 | gcc_GAS_CHECK_FEATURE([line table is_stmt support], |
3236 | gcc_cv_as_is_stmt, | |
3237 | [2,16,92],, | |
3238 | [ .text | |
3239 | .file 1 "conf.c" | |
3240 | .loc 1 1 0 is_stmt 1],, | |
3241 | [AC_DEFINE(HAVE_GAS_LOC_STMT, 1, | |
3242 | [Define if your assembler supports the .loc is_stmt sub-directive.])]) | |
3243 | ||
6c52e687 CC |
3244 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
3245 | gcc_cv_as_discriminator, | |
3246 | [2,19,51],, | |
3247 | [ .text | |
3248 | .file 1 "conf.c" | |
3249 | .loc 1 1 0 discriminator 1],, | |
3250 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
3251 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
3252 | ||
6a7a462c | 3253 | # Thread-local storage - the check is heavily parameterized. |
f996902d RH |
3254 | conftest_s= |
3255 | tls_first_major= | |
3256 | tls_first_minor= | |
9739c90c | 3257 | tls_as_opt= |
f996902d RH |
3258 | case "$target" in |
3259 | changequote(,)dnl | |
6f9b006d RH |
3260 | alpha*-*-*) |
3261 | conftest_s=' | |
3262 | .section ".tdata","awT",@progbits | |
3263 | foo: .long 25 | |
3264 | .text | |
3265 | ldq $27,__tls_get_addr($29) !literal!1 | |
3266 | lda $16,foo($29) !tlsgd!1 | |
3267 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
3268 | ldq $27,__tls_get_addr($29) !literal!2 | |
3269 | lda $16,foo($29) !tlsldm!2 | |
3270 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
3271 | ldq $1,foo($29) !gotdtprel | |
3272 | ldah $2,foo($29) !dtprelhi | |
3273 | lda $3,foo($2) !dtprello | |
3274 | lda $4,foo($29) !dtprel | |
3275 | ldq $1,foo($29) !gottprel | |
3276 | ldah $2,foo($29) !tprelhi | |
3277 | lda $3,foo($2) !tprello | |
3278 | lda $4,foo($29) !tprel' | |
3279 | tls_first_major=2 | |
3280 | tls_first_minor=13 | |
2f3321ca | 3281 | tls_as_opt=--fatal-warnings |
6f9b006d | 3282 | ;; |
28633bbd CZ |
3283 | arc*-*-*) |
3284 | conftest_s=' | |
3285 | add_s r0,r0, @foo@tpoff' | |
3286 | tls_first_major=2 | |
3287 | tls_first_minor=23 | |
3288 | ;; | |
ad9646c7 HPN |
3289 | cris-*-*|crisv32-*-*) |
3290 | conftest_s=' | |
3291 | .section ".tdata","awT",@progbits | |
3292 | x: .long 25 | |
3293 | .text | |
3294 | move.d x:IE,$r10 | |
3295 | nop' | |
3296 | tls_first_major=2 | |
3297 | tls_first_minor=20 | |
3298 | tls_as_opt=--fatal-warnings | |
3299 | ;; | |
e4dd71de AH |
3300 | frv*-*-*) |
3301 | conftest_s=' | |
3302 | .section ".tdata","awT",@progbits | |
3303 | x: .long 25 | |
3304 | .text | |
3305 | call #gettlsoff(x)' | |
3306 | tls_first_major=2 | |
3307 | tls_first_minor=14 | |
3308 | ;; | |
51076f96 RC |
3309 | hppa*-*-linux*) |
3310 | conftest_s=' | |
3311 | t1: .reg %r20 | |
3312 | t2: .reg %r21 | |
3313 | gp: .reg %r19 | |
3314 | .section ".tdata","awT",@progbits | |
3315 | foo: .long 25 | |
3316 | .text | |
3317 | .align 4 | |
3318 | addil LT%foo-$tls_gdidx$,gp | |
3319 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
3320 | b __tls_get_addr | |
3321 | nop | |
3322 | addil LT%foo-$tls_ldidx$,gp | |
3323 | b __tls_get_addr | |
3324 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
3325 | addil LR%foo-$tls_dtpoff$,%ret0 | |
3326 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
3327 | mfctl %cr27,%t1 | |
3328 | addil LT%foo-$tls_ieoff$,gp | |
3329 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
3330 | add %t1,%t2,%t3 | |
3331 | mfctl %cr27,%t1 | |
3332 | addil LR%foo-$tls_leoff$,%t1 | |
3333 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
3334 | tls_first_major=2 | |
3335 | tls_first_minor=15 | |
3336 | tls_as_opt=--fatal-warnings | |
3337 | ;; | |
d3585b76 DJ |
3338 | arm*-*-*) |
3339 | conftest_s=' | |
3340 | .section ".tdata","awT",%progbits | |
3341 | foo: .long 25 | |
3342 | .text | |
3343 | .word foo(gottpoff) | |
3344 | .word foo(tpoff) | |
3345 | .word foo(tlsgd) | |
3346 | .word foo(tlsldm) | |
3347 | .word foo(tlsldo)' | |
3348 | tls_first_major=2 | |
3349 | tls_first_minor=17 | |
3350 | ;; | |
fe4e71e4 | 3351 | i[34567]86-*-* | x86_64-*-*) |
f1c26cad | 3352 | case "$target" in |
ccd1242e | 3353 | i[34567]86-*-solaris2.* | x86_64-*-solaris2.*) |
f1c26cad | 3354 | on_solaris=yes |
fbdd5d87 | 3355 | ;; |
f1c26cad RO |
3356 | *) |
3357 | on_solaris=no | |
3358 | ;; | |
3359 | esac | |
3360 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3361 | conftest_s=' | |
3362 | .section .tdata,"awt",@progbits' | |
3363 | tls_first_major=0 | |
3364 | tls_first_minor=0 | |
caa16d41 | 3365 | tls_section_flag=t |
f1c26cad RO |
3366 | changequote([,])dnl |
3367 | AC_DEFINE(TLS_SECTION_ASM_FLAG, 't', | |
3368 | [Define to the flag used to mark TLS sections if the default (`T') doesn't work.]) | |
3369 | changequote(,)dnl | |
3370 | else | |
3371 | conftest_s=' | |
3372 | .section ".tdata","awT",@progbits' | |
3373 | tls_first_major=2 | |
3374 | tls_first_minor=14 | |
caa16d41 | 3375 | tls_section_flag=T |
f1c26cad RO |
3376 | tls_as_opt="--fatal-warnings" |
3377 | fi | |
fe4e71e4 RO |
3378 | case "$target" in |
3379 | i[34567]86-*-*) | |
3380 | conftest_s="$conftest_s | |
f996902d RH |
3381 | foo: .long 25 |
3382 | .text | |
3383 | movl %gs:0, %eax | |
f1c26cad RO |
3384 | leal foo@tlsgd(,%ebx,1), %eax |
3385 | leal foo@tlsldm(%ebx), %eax | |
3386 | leal foo@dtpoff(%eax), %edx | |
3387 | movl foo@gottpoff(%ebx), %eax | |
3388 | subl foo@gottpoff(%ebx), %eax | |
3389 | addl foo@gotntpoff(%ebx), %eax | |
3390 | movl foo@indntpoff, %eax | |
3391 | movl \$foo@tpoff, %eax | |
3392 | subl \$foo@tpoff, %eax | |
3393 | leal foo@ntpoff(%ecx), %eax" | |
fe4e71e4 RO |
3394 | ;; |
3395 | x86_64-*-*) | |
3396 | if test x$on_solaris = xyes; then | |
3397 | case $gas_flag in | |
3398 | yes) tls_as_opt="$tls_as_opt --64" ;; | |
3399 | no) tls_as_opt="$tls_as_opt -xarch=amd64" ;; | |
3400 | esac | |
3401 | fi | |
3402 | conftest_s="$conftest_s | |
75d38379 JJ |
3403 | foo: .long 25 |
3404 | .text | |
3405 | movq %fs:0, %rax | |
fe4e71e4 RO |
3406 | leaq foo@tlsgd(%rip), %rdi |
3407 | leaq foo@tlsld(%rip), %rdi | |
3408 | leaq foo@dtpoff(%rax), %rdx | |
3409 | movq foo@gottpoff(%rip), %rax | |
3410 | movq \$foo@tpoff, %rax" | |
3411 | ;; | |
3412 | esac | |
3413 | ;; | |
7b6e506e RH |
3414 | ia64-*-*) |
3415 | conftest_s=' | |
3416 | .section ".tdata","awT",@progbits | |
3417 | foo: data8 25 | |
3418 | .text | |
3419 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
3420 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
3421 | addl r18 = @ltoff(@tprel(foo#)), gp | |
3422 | addl r19 = @dtprel(foo#), gp | |
3423 | adds r21 = @dtprel(foo#), r13 | |
3424 | movl r23 = @dtprel(foo#) | |
3425 | addl r20 = @tprel(foo#), gp | |
3426 | adds r22 = @tprel(foo#), r13 | |
3427 | movl r24 = @tprel(foo#)' | |
3428 | tls_first_major=2 | |
3429 | tls_first_minor=13 | |
2f3321ca | 3430 | tls_as_opt=--fatal-warnings |
7b6e506e | 3431 | ;; |
8cc9a5a5 EI |
3432 | microblaze*-*-*) |
3433 | conftest_s=' | |
3434 | .section .tdata,"awT",@progbits | |
3435 | x: | |
3436 | .word 2 | |
3437 | .text | |
3438 | addik r5,r20,x@TLSGD | |
3439 | addik r5,r20,x@TLSLDM' | |
3440 | tls_first_major=2 | |
3441 | tls_first_minor=20 | |
3442 | tls_as_opt='--fatal-warnings' | |
3443 | ;; | |
69229b81 DJ |
3444 | mips*-*-*) |
3445 | conftest_s=' | |
3446 | .section .tdata,"awT",@progbits | |
3447 | x: | |
3448 | .word 2 | |
3449 | .text | |
3450 | addiu $4, $28, %tlsgd(x) | |
3451 | addiu $4, $28, %tlsldm(x) | |
3452 | lui $4, %dtprel_hi(x) | |
3453 | addiu $4, $4, %dtprel_lo(x) | |
3454 | lw $4, %gottprel(x)($28) | |
3455 | lui $4, %tprel_hi(x) | |
3456 | addiu $4, $4, %tprel_lo(x)' | |
3457 | tls_first_major=2 | |
3458 | tls_first_minor=16 | |
3459 | tls_as_opt='-32 --fatal-warnings' | |
3460 | ;; | |
75df395f MK |
3461 | m68k-*-*) |
3462 | conftest_s=' | |
3463 | .section .tdata,"awT",@progbits | |
3464 | x: | |
3465 | .word 2 | |
3466 | .text | |
3467 | foo: | |
3468 | move.l x@TLSGD(%a5),%a0 | |
3469 | move.l x@TLSLDM(%a5),%a0 | |
3470 | move.l x@TLSLDO(%a5),%a0 | |
3471 | move.l x@TLSIE(%a5),%a0 | |
3472 | move.l x@TLSLE(%a5),%a0' | |
3473 | tls_first_major=2 | |
3474 | tls_first_minor=19 | |
3475 | tls_as_opt='--fatal-warnings' | |
3476 | ;; | |
e430824f CLT |
3477 | nios2-*-*) |
3478 | conftest_s=' | |
3479 | .section ".tdata","awT",@progbits' | |
3480 | tls_first_major=2 | |
3481 | tls_first_minor=23 | |
3482 | tls_as_opt="--fatal-warnings" | |
3483 | ;; | |
24034425 IB |
3484 | aarch64*-*-*) |
3485 | conftest_s=' | |
3486 | .section ".tdata","awT",%progbits | |
3487 | foo: .long 25 | |
3488 | .text | |
3489 | adrp x0, :tlsgd:x | |
3490 | add x0, x0, #:tlsgd_lo12:x | |
3491 | bl __tls_get_addr | |
3492 | nop' | |
3493 | tls_first_major=2 | |
3494 | tls_first_minor=20 | |
3495 | tls_as_opt='--fatal-warnings' | |
3496 | ;; | |
3965b35f SH |
3497 | or1k*-*-*) |
3498 | conftest_s=' | |
3499 | .section ".tdata","awT",@progbits | |
3500 | foo: .long 25 | |
3501 | .text | |
3502 | l.movhi r3, tpoffha(foo) | |
3503 | l.add r3, r3, r10 | |
3504 | l.lwz r4, tpofflo(foo)(r3)' | |
3505 | tls_first_major=2 | |
3506 | tls_first_minor=30 | |
3507 | tls_as_opt=--fatal-warnings | |
3508 | ;; | |
7a8b1ec4 DE |
3509 | powerpc-ibm-aix*) |
3510 | conftest_s=' | |
3511 | .extern __get_tpointer | |
3512 | .toc | |
3513 | LC..1: | |
3514 | .tc a[TC],a[TL]@le | |
3515 | .csect .text[PR] | |
3516 | .tlstest: | |
3517 | lwz 9,LC..1(2) | |
3518 | bla __get_tpointer | |
3519 | lwzx 3,9,3 | |
3520 | .globl a | |
3521 | .csect a[TL],4 | |
3522 | a: | |
3523 | .space 4' | |
3524 | tls_first_major=0 | |
3525 | tls_first_minor=0 | |
3526 | ;; | |
227eb343 | 3527 | powerpc64*-*-*) |
c4501e62 JJ |
3528 | conftest_s=' |
3529 | .section ".tdata","awT",@progbits | |
3530 | .align 3 | |
3531 | ld0: .space 8 | |
3532 | ld1: .space 8 | |
3533 | x1: .space 8 | |
3534 | x2: .space 8 | |
3535 | x3: .space 8 | |
3536 | .text | |
3537 | addi 3,2,ld0@got@tlsgd | |
3538 | bl .__tls_get_addr | |
3539 | nop | |
3540 | addi 3,2,ld1@toc | |
3541 | bl .__tls_get_addr | |
3542 | nop | |
3543 | addi 3,2,x1@got@tlsld | |
3544 | bl .__tls_get_addr | |
3545 | nop | |
3546 | addi 9,3,x1@dtprel | |
3547 | bl .__tls_get_addr | |
3548 | nop | |
3549 | addis 9,3,x2@dtprel@ha | |
3550 | addi 9,9,x2@dtprel@l | |
3551 | bl .__tls_get_addr | |
3552 | nop | |
3553 | ld 9,x3@got@dtprel(2) | |
3554 | add 9,9,3 | |
3555 | bl .__tls_get_addr | |
3556 | nop' | |
3557 | tls_first_major=2 | |
3558 | tls_first_minor=14 | |
2f3321ca | 3559 | tls_as_opt="-a64 --fatal-warnings" |
c4501e62 | 3560 | ;; |
01ae4861 AM |
3561 | powerpc*-*-*) |
3562 | conftest_s=' | |
3563 | .section ".tdata","awT",@progbits | |
3564 | .align 2 | |
3565 | ld0: .space 4 | |
3566 | ld1: .space 4 | |
3567 | x1: .space 4 | |
3568 | x2: .space 4 | |
3569 | x3: .space 4 | |
3570 | .text | |
3571 | addi 3,31,ld0@got@tlsgd | |
3572 | bl __tls_get_addr | |
3573 | addi 3,31,x1@got@tlsld | |
3574 | bl __tls_get_addr | |
3575 | addi 9,3,x1@dtprel | |
3576 | addis 9,3,x2@dtprel@ha | |
3577 | addi 9,9,x2@dtprel@l | |
3578 | lwz 9,x3@got@tprel(31) | |
3579 | add 9,9,x@tls | |
3580 | addi 9,2,x1@tprel | |
3581 | addis 9,2,x2@tprel@ha | |
3582 | addi 9,9,x2@tprel@l' | |
3583 | tls_first_major=2 | |
3584 | tls_first_minor=14 | |
3585 | tls_as_opt="-a32 --fatal-warnings" | |
3586 | ;; | |
09cae750 PD |
3587 | riscv*-*-*) |
3588 | conftest_s=' | |
3589 | .section .tdata,"awT",@progbits | |
3590 | x: .word 2 | |
3591 | .text | |
3592 | la.tls.gd a0,x | |
3593 | call __tls_get_addr' | |
3594 | tls_first_major=2 | |
3595 | tls_first_minor=21 | |
3596 | tls_as_opt='--fatal-warnings' | |
3597 | ;; | |
fd3cd001 UW |
3598 | s390-*-*) |
3599 | conftest_s=' | |
3600 | .section ".tdata","awT",@progbits | |
3601 | foo: .long 25 | |
3602 | .text | |
3603 | .long foo@TLSGD | |
3604 | .long foo@TLSLDM | |
3605 | .long foo@DTPOFF | |
3606 | .long foo@NTPOFF | |
3607 | .long foo@GOTNTPOFF | |
3608 | .long foo@INDNTPOFF | |
3609 | l %r1,foo@GOTNTPOFF(%r12) | |
3610 | l %r1,0(%r1):tls_load:foo | |
3611 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
3612 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
3613 | tls_first_major=2 | |
3614 | tls_first_minor=14 | |
2f3321ca | 3615 | tls_as_opt="-m31 --fatal-warnings" |
fd3cd001 UW |
3616 | ;; |
3617 | s390x-*-*) | |
3618 | conftest_s=' | |
3619 | .section ".tdata","awT",@progbits | |
3620 | foo: .long 25 | |
3621 | .text | |
3622 | .quad foo@TLSGD | |
3623 | .quad foo@TLSLDM | |
3624 | .quad foo@DTPOFF | |
3625 | .quad foo@NTPOFF | |
3626 | .quad foo@GOTNTPOFF | |
3627 | lg %r1,foo@GOTNTPOFF(%r12) | |
3628 | larl %r1,foo@INDNTPOFF | |
3629 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
3630 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
3631 | tls_first_major=2 | |
3632 | tls_first_minor=14 | |
2f3321ca | 3633 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
fd3cd001 | 3634 | ;; |
311adabe | 3635 | sh-*-* | sh[123456789lbe]*-*-*) |
9ff13962 KK |
3636 | conftest_s=' |
3637 | .section ".tdata","awT",@progbits | |
3638 | foo: .long 25 | |
3639 | .text | |
3640 | .long foo@TLSGD | |
3641 | .long foo@TLSLDM | |
3642 | .long foo@DTPOFF | |
3643 | .long foo@GOTTPOFF | |
3644 | .long foo@TPOFF' | |
3645 | tls_first_major=2 | |
3646 | tls_first_minor=13 | |
2f3321ca | 3647 | tls_as_opt=--fatal-warnings |
9ff13962 | 3648 | ;; |
5751a10b | 3649 | sparc*-*-*) |
2f3321ca EB |
3650 | case "$target" in |
3651 | sparc*-sun-solaris2.*) | |
3652 | on_solaris=yes | |
3653 | ;; | |
3654 | *) | |
3655 | on_solaris=no | |
3656 | ;; | |
3657 | esac | |
3658 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3659 | conftest_s=' | |
16c9d3b1 | 3660 | .section ".tdata",#alloc,#write,#tls' |
2f3321ca EB |
3661 | tls_first_major=0 |
3662 | tls_first_minor=0 | |
3663 | else | |
3664 | conftest_s=' | |
16c9d3b1 RO |
3665 | .section ".tdata","awT",@progbits' |
3666 | tls_first_major=2 | |
3667 | tls_first_minor=14 | |
3668 | tls_as_opt="-32 --fatal-warnings" | |
3669 | fi | |
3670 | conftest_s="$conftest_s | |
5751a10b JJ |
3671 | foo: .long 25 |
3672 | .text | |
3673 | sethi %tgd_hi22(foo), %o0 | |
3674 | add %o0, %tgd_lo10(foo), %o1 | |
3675 | add %l7, %o1, %o0, %tgd_add(foo) | |
3676 | call __tls_get_addr, %tgd_call(foo) | |
3677 | sethi %tldm_hi22(foo), %l1 | |
3678 | add %l1, %tldm_lo10(foo), %l2 | |
3679 | add %l7, %l2, %o0, %tldm_add(foo) | |
3680 | call __tls_get_addr, %tldm_call(foo) | |
3681 | sethi %tldo_hix22(foo), %l3 | |
3682 | xor %l3, %tldo_lox10(foo), %l4 | |
3683 | add %o0, %l4, %l5, %tldo_add(foo) | |
3684 | sethi %tie_hi22(foo), %o3 | |
3685 | add %o3, %tie_lo10(foo), %o3 | |
3686 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
3687 | add %g7, %o2, %o4, %tie_add(foo) | |
3688 | sethi %tle_hix22(foo), %l1 | |
3689 | xor %l1, %tle_lox10(foo), %o5 | |
16c9d3b1 | 3690 | ld [%g7 + %o5], %o1" |
5751a10b | 3691 | ;; |
dd552284 WL |
3692 | tilepro*-*-*) |
3693 | conftest_s=' | |
3694 | .section ".tdata","awT",@progbits | |
3695 | foo: .long 25 | |
3696 | .text | |
3697 | addli r0, zero, tls_gd(foo) | |
3698 | auli r0, zero, tls_gd_ha16(foo) | |
3699 | addli r0, r0, tls_gd_lo16(foo) | |
3700 | jal __tls_get_addr | |
3701 | addli r0, zero, tls_ie(foo) | |
3702 | auli r0, r0, tls_ie_ha16(foo) | |
3703 | addli r0, r0, tls_ie_lo16(foo)' | |
3704 | tls_first_major=2 | |
3705 | tls_first_minor=22 | |
3706 | tls_as_opt="--fatal-warnings" | |
3707 | ;; | |
3708 | tilegx*-*-*) | |
3709 | conftest_s=' | |
3710 | .section ".tdata","awT",@progbits | |
3711 | foo: .long 25 | |
3712 | .text | |
3713 | shl16insli r0, zero, hw0_last_tls_gd(foo) | |
3714 | shl16insli r0, zero, hw1_last_tls_gd(foo) | |
3715 | shl16insli r0, r0, hw0_tls_gd(foo) | |
3716 | jal __tls_get_addr | |
3717 | shl16insli r0, zero, hw1_last_tls_ie(foo) | |
3718 | shl16insli r0, r0, hw0_tls_ie(foo)' | |
3719 | tls_first_major=2 | |
3720 | tls_first_minor=22 | |
3721 | tls_as_opt="--fatal-warnings" | |
3722 | ;; | |
6a7a462c BW |
3723 | xtensa*-*-*) |
3724 | conftest_s=' | |
3725 | .section ".tdata","awT",@progbits | |
3726 | foo: .long 25 | |
3727 | .text | |
3728 | movi a8, foo@TLSFUNC | |
3729 | movi a10, foo@TLSARG | |
3730 | callx8.tls a8, foo@TLSCALL' | |
3731 | tls_first_major=2 | |
3732 | tls_first_minor=19 | |
3733 | ;; | |
5751a10b | 3734 | changequote([,])dnl |
f996902d | 3735 | esac |
8dea1cca DD |
3736 | set_have_as_tls=no |
3737 | if test "x$enable_tls" = xno ; then | |
3738 | : # TLS explicitly disabled. | |
3739 | elif test "x$enable_tls" = xyes ; then | |
3740 | set_have_as_tls=yes # TLS explicitly enabled. | |
3741 | elif test -z "$tls_first_major"; then | |
8ada417f ZW |
3742 | : # If we don't have a check, assume no support. |
3743 | else | |
3744 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2f3321ca | 3745 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
8dea1cca DD |
3746 | [set_have_as_tls=yes]) |
3747 | fi | |
3748 | if test $set_have_as_tls = yes ; then | |
3749 | AC_DEFINE(HAVE_AS_TLS, 1, | |
16c9d3b1 | 3750 | [Define if your assembler and linker support thread-local storage.]) |
f996902d | 3751 | fi |
8ada417f ZW |
3752 | |
3753 | # Target-specific assembler checks. | |
f996902d | 3754 | |
7e9d8517 L |
3755 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
3756 | gcc_cv_ld_static_dynamic=no | |
c6092243 RO |
3757 | gcc_cv_ld_static_option='-Bstatic' |
3758 | gcc_cv_ld_dynamic_option='-Bdynamic' | |
7e9d8517 | 3759 | if test $in_tree_ld = yes ; then |
83f0ccb8 | 3760 | if test "$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 |
3761 | gcc_cv_ld_static_dynamic=yes |
3762 | fi | |
3763 | elif test x$gcc_cv_ld != x; then | |
bb127cd8 | 3764 | # Check if linker supports -Bstatic/-Bdynamic option |
8dc877eb RO |
3765 | if $gcc_cv_ld --help 2>&1 | grep -- -Bstatic > /dev/null \ |
3766 | && $gcc_cv_ld --help 2>&1 | grep -- -Bdynamic > /dev/null; then | |
bb127cd8 RO |
3767 | gcc_cv_ld_static_dynamic=yes |
3768 | else | |
3769 | case "$target" in | |
478f60f9 MH |
3770 | # AIX ld uses -b flags |
3771 | *-*-aix4.[[23]]* | *-*-aix[[5-9]]*) | |
3772 | gcc_cv_ld_static_dynamic=yes | |
3773 | gcc_cv_ld_static_option="-bstatic" | |
3774 | gcc_cv_ld_dynamic_option="-bdynamic" | |
3775 | ;; | |
f903e000 SE |
3776 | # HP-UX ld uses -a flags to select between shared and archive. |
3777 | *-*-hpux*) | |
3778 | if test x"$gnu_ld" = xno; then | |
3779 | gcc_cv_ld_static_dynamic=yes | |
3780 | gcc_cv_ld_static_option="-aarchive_shared" | |
3781 | gcc_cv_ld_dynamic_option="-adefault" | |
3782 | fi | |
3783 | ;; | |
bb127cd8 RO |
3784 | # Solaris 2 ld always supports -Bstatic/-Bdynamic. |
3785 | *-*-solaris2*) | |
3786 | gcc_cv_ld_static_dynamic=yes | |
3787 | ;; | |
3788 | esac | |
3789 | fi | |
7e9d8517 L |
3790 | fi |
3791 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
3792 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
c6092243 RO |
3793 | [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.]) |
3794 | AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option", | |
3795 | [Define to the linker option to disable use of shared objects.]) | |
3796 | AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option", | |
3797 | [Define to the linker option to enable use of shared objects.]) | |
7e9d8517 L |
3798 | fi |
3799 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
3800 | ||
deb3da39 DM |
3801 | AC_MSG_CHECKING(linker --version-script option) |
3802 | gcc_cv_ld_version_script=no | |
3803 | ld_version_script_option='' | |
3804 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3805 | gcc_cv_ld_version_script=yes | |
3806 | ld_version_script_option='--version-script' | |
3807 | elif test x$gcc_cv_ld != x; then | |
3808 | case "$target" in | |
3809 | # Solaris 2 ld always supports -M. It also supports a subset of | |
3810 | # --version-script since Solaris 11.4, but requires | |
3811 | # -z gnu-version-script-compat to activate. | |
3812 | *-*-solaris2*) | |
3813 | gcc_cv_ld_version_script=yes | |
3814 | ld_version_script_option='-M' | |
3815 | ;; | |
3816 | esac | |
3817 | fi | |
3818 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3819 | AC_MSG_RESULT($gcc_cv_ld_version_script) | |
3820 | AC_SUBST(ld_version_script_option) | |
3821 | ||
3822 | AC_MSG_CHECKING(linker soname option) | |
3823 | gcc_cv_ld_soname=no | |
3824 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3825 | gcc_cv_ld_soname=yes | |
3826 | ld_soname_option='-soname' | |
3827 | elif test x$gcc_cv_ld != x; then | |
3828 | case "$target" in | |
3829 | *-*-darwin*) | |
3830 | gcc_cv_ld_soname=yes | |
3831 | ld_soname_option='-install_name' | |
3832 | ;; | |
ea143da7 RO |
3833 | # Solaris 2 ld always supports -h. It also supports --soname for GNU |
3834 | # ld compatiblity since some Solaris 10 update. | |
3835 | *-*-solaris2*) | |
3836 | gcc_cv_ld_soname=yes | |
3837 | ld_soname_option='-h' | |
3838 | ;; | |
deb3da39 DM |
3839 | esac |
3840 | fi | |
3841 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3842 | AC_MSG_RESULT($gcc_cv_ld_soname) | |
3843 | AC_SUBST(ld_soname_option) | |
3844 | ||
d594623a L |
3845 | if test x"$demangler_in_ld" = xyes; then |
3846 | AC_MSG_CHECKING(linker --demangle support) | |
3847 | gcc_cv_ld_demangle=no | |
3848 | if test $in_tree_ld = yes; then | |
3849 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
3850 | gcc_cv_ld_demangle=yes | |
3851 | fi | |
3852 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
3853 | # Check if the GNU linker supports --demangle option | |
8dc877eb | 3854 | if $gcc_cv_ld --help 2>&1 | grep no-demangle > /dev/null; then |
d594623a L |
3855 | gcc_cv_ld_demangle=yes |
3856 | fi | |
3857 | fi | |
3858 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
3859 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
3860 | [Define if your linker supports --demangle option.]) | |
3861 | fi | |
3862 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
3863 | fi | |
3864 | ||
96bdf9b4 | 3865 | AC_MSG_CHECKING(linker plugin support) |
55b46574 | 3866 | gcc_cv_lto_plugin=0 |
f3d533d3 | 3867 | if test -f liblto_plugin.la; then |
df33b41f RO |
3868 | save_ld_ver="$ld_ver" |
3869 | save_ld_vers_major="$ld_vers_major" | |
3870 | save_ld_vers_minor="$ld_vers_minor" | |
3871 | save_ld_is_gold="$ld_is_gold" | |
3872 | ||
3873 | ld_is_gold=no | |
55b46574 | 3874 | |
df33b41f RO |
3875 | if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then |
3876 | ld_ver="GNU ld" | |
3877 | # FIXME: ld_is_gold? | |
3878 | ld_vers_major="$gcc_cv_gld_major_version" | |
3879 | ld_vers_minor="$gcc_cv_gld_minor_version" | |
3880 | else | |
3881 | # Determine plugin linker version. | |
3882 | # FIXME: Partial duplicate from above, generalize. | |
3883 | changequote(,)dnl | |
3884 | ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q` | |
3885 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
3886 | if echo "$ld_ver" | grep "GNU gold" > /dev/null; then | |
3887 | ld_is_gold=yes | |
3888 | ld_vers=`echo $ld_ver | sed -n \ | |
3889 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
3890 | else | |
3891 | ld_vers=`echo $ld_ver | sed -n \ | |
3892 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
3893 | fi | |
3894 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
3895 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
55b46574 | 3896 | fi |
df33b41f RO |
3897 | changequote([,])dnl |
3898 | fi | |
3899 | ||
3900 | # Determine plugin support. | |
3901 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
55b46574 RO |
3902 | # Require GNU ld or gold 2.21+ for plugin support by default. |
3903 | if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then | |
3904 | gcc_cv_lto_plugin=2 | |
3905 | # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20. | |
3906 | elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then | |
3907 | gcc_cv_lto_plugin=1 | |
96bdf9b4 | 3908 | fi |
96bdf9b4 | 3909 | fi |
df33b41f RO |
3910 | |
3911 | ld_ver="$save_ld_ver" | |
3912 | ld_vers_major="$save_ld_vers_major" | |
3913 | ld_vers_minor="$save_ld_vers_minor" | |
3914 | ld_is_gold="$save_ld_is_gold" | |
96bdf9b4 | 3915 | fi |
55b46574 RO |
3916 | AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin, |
3917 | [Define to the level of your linker's plugin support.]) | |
96bdf9b4 JH |
3918 | AC_MSG_RESULT($gcc_cv_lto_plugin) |
3919 | ||
b410cf1d IS |
3920 | # Target OS-specific assembler checks. |
3921 | ||
3922 | case "$target_os" in | |
3923 | darwin*) | |
3924 | gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option], | |
3925 | gcc_cv_as_mmacosx_version_min,, | |
3926 | [-mmacosx-version-min=10.1], [.text],, | |
3927 | [AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1, | |
3928 | [Define if your Mac OS X assembler supports the -mmacos-version-min option.])]) | |
3929 | ;; | |
3930 | esac | |
3931 | ||
3932 | # Target CPU-specific assembler checks. | |
3933 | ||
275b60d6 | 3934 | case "$target" in |
63892fa2 KV |
3935 | aarch64*-*-*) |
3936 | gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,, | |
3937 | [-mabi=lp64], [.text],,,) | |
3938 | if test x$gcc_cv_as_aarch64_mabi = xyes; then | |
3939 | AC_DEFINE(HAVE_AS_MABI_OPTION, 1, | |
3940 | [Define if your assembler supports the -mabi option.]) | |
3941 | else | |
3942 | if test x$with_abi = xilp32; then | |
3943 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
3944 | Upgrade the Assembler.]) | |
3945 | fi | |
3946 | if test x"$with_multilib_list" = xdefault; then | |
3947 | TM_MULTILIB_CONFIG=lp64 | |
3948 | else | |
3949 | aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'` | |
3950 | for aarch64_multilib in ${aarch64_multilibs}; do | |
3951 | case ${aarch64_multilib} in | |
3952 | ilp32) | |
3953 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
3954 | Upgrade the Assembler.]) | |
3955 | ;; | |
3956 | *) | |
3957 | ;; | |
3958 | esac | |
3959 | done | |
3960 | fi | |
3961 | fi | |
34ecdb0f JW |
3962 | # Check if we have binutils support for relocations types needed by -fpic |
3963 | gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,, | |
3964 | [ | |
3965 | .text | |
3966 | ldr x0, [[x2, #:gotpage_lo15:globalsym]] | |
3967 | ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1, | |
3968 | [Define if your assembler supports relocs needed by -fpic.])]) | |
c7ff4f0f SD |
3969 | # Enable Branch Target Identification Mechanism and Return Address |
3970 | # Signing by default. | |
3971 | AC_ARG_ENABLE(standard-branch-protection, | |
3972 | [ | |
3973 | AS_HELP_STRING([--enable-standard-branch-protection], | |
3974 | [enable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
3975 | AS_HELP_STRING([--disable-standard-branch-protection], | |
3976 | [disable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
3977 | ], | |
3978 | [ | |
3979 | case $enableval in | |
3980 | yes) | |
3981 | tm_defines="${tm_defines} TARGET_ENABLE_BTI=1 TARGET_ENABLE_PAC_RET=1" | |
3982 | ;; | |
3983 | no) | |
3984 | ;; | |
3985 | *) | |
3986 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-standard-branch-protection.\ | |
3987 | Valid choices are 'yes' and 'no'.]) | |
3988 | ;; | |
3989 | esac | |
3990 | ], | |
3991 | []) | |
5e396da6 KT |
3992 | # Enable default workaround for AArch64 Cortex-A53 erratum 835769. |
3993 | AC_ARG_ENABLE(fix-cortex-a53-835769, | |
3994 | [ | |
3995 | AS_HELP_STRING([--enable-fix-cortex-a53-835769], | |
3996 | [enable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
3997 | AS_HELP_STRING([--disable-fix-cortex-a53-835769], | |
3998 | [disable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
3999 | ], | |
4000 | [ | |
4001 | case $enableval in | |
4002 | yes) | |
4003 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1" | |
4004 | ;; | |
4005 | no) | |
4006 | ;; | |
4007 | *) | |
4008 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\ | |
4009 | Valid choices are 'yes' and 'no'.]) | |
4010 | ;; | |
4011 | ||
4012 | esac | |
4013 | ], | |
4014 | []) | |
bf05ef76 YR |
4015 | # Enable default workaround for AArch64 Cortex-A53 erratum 843419. |
4016 | AC_ARG_ENABLE(fix-cortex-a53-843419, | |
4017 | [ | |
4018 | AS_HELP_STRING([--enable-fix-cortex-a53-843419], | |
4019 | [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4020 | AS_HELP_STRING([--disable-fix-cortex-a53-843419], | |
4021 | [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4022 | ], | |
4023 | [ | |
4024 | case $enableval in | |
4025 | yes) | |
4026 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" | |
4027 | ;; | |
4028 | no) | |
4029 | ;; | |
4030 | *) | |
4031 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ | |
4032 | Valid choices are 'yes' and 'no'.]) | |
4033 | ;; | |
4034 | ||
4035 | esac | |
4036 | ], | |
4037 | []) | |
63892fa2 KV |
4038 | ;; |
4039 | ||
3a37b08e | 4040 | # All TARGET_ABI_OSF targets. |
5c30094f | 4041 | alpha*-*-linux* | alpha*-*-*bsd*) |
8ada417f ZW |
4042 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
4043 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
4044 | [ .set nomacro | |
3a37b08e RH |
4045 | .text |
4046 | extbl $3, $2, $3 !lituse_bytoff!1 | |
4047 | ldq $2, a($29) !literal!1 | |
4048 | ldq $4, b($29) !literal!2 | |
4049 | ldq_u $3, 0($2) !lituse_base!1 | |
4050 | ldq $27, f($29) !literal!5 | |
4051 | jsr $26, ($27), f !lituse_jsr!5 | |
4052 | ldah $29, 0($26) !gpdisp!3 | |
4053 | lda $0, c($29) !gprel | |
4054 | ldah $1, d($29) !gprelhigh | |
4055 | lda $1, d($1) !gprellow | |
8ada417f ZW |
4056 | lda $29, 0($29) !gpdisp!3],, |
4057 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
4058 | [Define if your assembler supports explicit relocations.])]) | |
d006f5eb RH |
4059 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
4060 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
4061 | [ .set nomacro | |
4062 | .text | |
4063 | ldq $27, a($29) !literal!1 | |
4064 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
4065 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
4066 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
3a37b08e | 4067 | ;; |
e95b1e6a | 4068 | |
0c9dc4ae GJL |
4069 | avr-*-*) |
4070 | gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,, | |
4071 | [--mlink-relax], [.text],, | |
4072 | [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1, | |
4073 | [Define if your avr assembler supports --mlink-relax option.])]) | |
4074 | ||
4075 | gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,, | |
4076 | [-mrmw], [.text],, | |
4077 | [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1, | |
4078 | [Define if your avr assembler supports -mrmw option.])]) | |
3266ddb3 | 4079 | |
63866e04 GJL |
4080 | gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction], |
4081 | gcc_cv_as_avr_mgccisr,, | |
4082 | [-mgcc-isr], [.text | |
4083 | __gcc_isr 1 | |
4084 | __gcc_isr 2 | |
4085 | __gcc_isr 0,r24 | |
4086 | ],, | |
4087 | [AC_DEFINE(HAVE_AS_AVR_MGCCISR_OPTION, 1, | |
4088 | [Define if your avr assembler supports -mgcc-isr option.])]) | |
4089 | ||
3266ddb3 GJL |
4090 | # Check how default linker description file implements .rodata for |
4091 | # avrxmega3 (PR21472). avr-gcc assumes .rodata is *not* loaded to | |
4092 | # RAM so avr-gcc skips __do_copy_data for .rodata objects. | |
4093 | AC_MSG_CHECKING(binutils for avrxmega3 .rodata support) | |
4094 | cat > conftest.s <<EOF | |
4095 | .section .rodata,"a",@progbits | |
4096 | .global xxvaryy | |
4097 | ;; avr-nm should print "... R xxvaryy", not "... D xxvaryy". | |
4098 | xxvaryy: | |
4099 | .word 1 | |
4100 | EOF | |
4101 | rm -f conftest.nm | |
4102 | AC_TRY_COMMAND([$gcc_cv_as -mmcu=avrxmega3 conftest.s -o conftest.o]) | |
4103 | AC_TRY_COMMAND([$gcc_cv_ld -mavrxmega3 conftest.o -o conftest.elf]) | |
4104 | AC_TRY_COMMAND([$gcc_cv_nm conftest.elf > conftest.nm]) | |
98f9d0ca | 4105 | if test -s conftest.nm |
3266ddb3 GJL |
4106 | then |
4107 | if grep ' R xxvaryy' conftest.nm > /dev/null; then | |
4108 | AC_MSG_RESULT(yes) | |
98f9d0ca GJL |
4109 | AC_DEFINE(HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH, 1, |
4110 | [Define if your default avr linker script for avrxmega3 leaves .rodata in flash.]) | |
3266ddb3 GJL |
4111 | else |
4112 | AC_MSG_RESULT(no: avrxmega3 .rodata located in RAM) | |
4113 | echo "$as_me: nm output was" >&AS_MESSAGE_LOG_FD | |
4114 | cat conftest.nm >&AS_MESSAGE_LOG_FD | |
3266ddb3 | 4115 | avr_ld_ver="`$gcc_cv_ld -v | sed -e 's:^.* ::'`" |
98f9d0ca | 4116 | AC_MSG_WARN([[support for avrxmega3 .rodata in flash needs Binutils 2.29 or higher (have $avr_ld_ver)]]) |
3266ddb3 GJL |
4117 | fi |
4118 | else | |
4119 | AC_MSG_RESULT(test failed) | |
4120 | echo "$as_me: failed program was" >&AS_MESSAGE_LOG_FD | |
4121 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
98f9d0ca | 4122 | AC_MSG_WARN([[see `config.log' for details]]) |
3266ddb3 | 4123 | fi |
98f9d0ca | 4124 | rm -f conftest.s conftest.o conftest.elf conftest.nm |
0c9dc4ae GJL |
4125 | ;; |
4126 | ||
682a45fc HPN |
4127 | cris-*-*) |
4128 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
4129 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
4130 | [-no-mul-bug-abort], [.text],, | |
4131 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
4132 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
4133 | ;; | |
4134 | ||
8ada417f | 4135 | sparc*-*-*) |
8ada417f ZW |
4136 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, |
4137 | [-relax], [.text],, | |
4138 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
4139 | [Define if your assembler supports -relax option.])]) | |
4140 | ||
878ee0ab DM |
4141 | gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs], |
4142 | gcc_cv_as_sparc_gotdata_op,, | |
4143 | [-K PIC], | |
4144 | [.text | |
6d7b45ad | 4145 | .align 4 |
878ee0ab DM |
4146 | foo: |
4147 | nop | |
4148 | bar: | |
4149 | sethi %gdop_hix22(foo), %g1 | |
4150 | xor %g1, %gdop_lox10(foo), %g1 | |
4151 | ld [[%l7 + %g1]], %g2, %gdop(foo)], | |
4152 | [if test x$gcc_cv_ld != x \ | |
46bc665f | 4153 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then |
7673c962 RO |
4154 | if test x$gcc_cv_objdump != x; then |
4155 | if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ | |
4156 | | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then | |
46bc665f | 4157 | gcc_cv_as_sparc_gotdata_op=no |
7673c962 | 4158 | else |
46bc665f | 4159 | gcc_cv_as_sparc_gotdata_op=yes |
46bc665f | 4160 | fi |
46bc665f | 4161 | fi |
878ee0ab DM |
4162 | fi |
4163 | rm -f conftest], | |
4164 | [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1, | |
4165 | [Define if your assembler and linker support GOTDATA_OP relocs.])]) | |
4166 | ||
8ada417f ZW |
4167 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], |
4168 | gcc_cv_as_sparc_ua_pcrel,, | |
4169 | [-K PIC], | |
4170 | [.text | |
4171 | foo: | |
4172 | nop | |
4173 | .data | |
4174 | .align 4 | |
4175 | .byte 0 | |
4176 | .uaword %r_disp32(foo)], | |
4177 | [if test x$gcc_cv_ld != x \ | |
4178 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
4179 | gcc_cv_as_sparc_ua_pcrel=yes | |
4180 | fi | |
4181 | rm -f conftest], | |
4182 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
17e9e88c | 4183 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
cf7b8b0d | 4184 | |
8ada417f ZW |
4185 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
4186 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
4187 | [-K PIC], | |
4188 | [.data | |
4189 | .align 4 | |
4190 | .byte 0x31 | |
4191 | .uaword %r_disp32(foo) | |
4192 | .byte 0x32, 0x33, 0x34 | |
4193 | .global foo | |
4194 | .hidden foo | |
4195 | foo: | |
4196 | .skip 4], | |
4197 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4198 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
4199 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
4200 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
4201 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
4202 | | grep 'DISP32' > /dev/null 2>&1; then | |
4203 | : | |
22252625 | 4204 | else |
8ada417f | 4205 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
5b68c389 | 4206 | fi |
8ada417f ZW |
4207 | fi |
4208 | rm -f conftest], | |
4209 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
4210 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
4211 | ]) # unaligned pcrel relocs | |
4212 | ||
4213 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
4214 | gcc_cv_as_sparc_offsetable_lo10,, | |
4215 | [-xarch=v9], | |
4216 | [.text | |
4217 | or %g1, %lo(ab) + 12, %g1 | |
4218 | or %g1, %lo(ab + 12), %g1], | |
4219 | [if test x$gcc_cv_objdump != x \ | |
ecb0ccbc | 4220 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
8ada417f | 4221 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
1b5c0152 | 4222 | gcc_cv_as_sparc_offsetable_lo10=yes |
8ada417f ZW |
4223 | fi], |
4224 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
4225 | [Define if your assembler supports offsetable %lo().])]) | |
e8b141b5 DM |
4226 | |
4227 | gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions], | |
4228 | gcc_cv_as_sparc_fmaf,, | |
4229 | [-xarch=v9d], | |
4230 | [.text | |
26e2f443 DM |
4231 | .register %g2, #scratch |
4232 | .register %g3, #scratch | |
e8b141b5 DM |
4233 | .align 4 |
4234 | fmaddd %f0, %f2, %f4, %f6 | |
4235 | addxccc %g1, %g2, %g3 | |
4236 | fsrl32 %f2, %f4, %f8 | |
4237 | fnaddd %f10, %f12, %f14],, | |
4238 | [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1, | |
4239 | [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])]) | |
8b98b5fd DM |
4240 | |
4241 | gcc_GAS_CHECK_FEATURE([SPARC4 instructions], | |
4242 | gcc_cv_as_sparc_sparc4,, | |
4243 | [-xarch=sparc4], | |
4244 | [.text | |
4245 | .register %g2, #scratch | |
4246 | .register %g3, #scratch | |
4247 | .align 4 | |
4248 | cxbe %g2, %g3, 1f | |
4249 | 1: cwbneg %g2, %g3, 1f | |
4250 | 1: sha1 | |
4251 | md5 | |
4252 | aes_kexpand0 %f4, %f6, %f8 | |
4253 | des_round %f38, %f40, %f42, %f44 | |
4254 | camellia_f %f54, %f56, %f58, %f60 | |
4255 | kasumi_fi_xor %f46, %f48, %f50, %f52],, | |
4256 | [AC_DEFINE(HAVE_AS_SPARC4, 1, | |
4257 | [Define if your assembler supports SPARC4 instructions.])]) | |
1f65ae7a | 4258 | |
690f24b7 JM |
4259 | gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions], |
4260 | gcc_cv_as_sparc_sparc5,, | |
4261 | [-xarch=sparc5], | |
4262 | [.text | |
4263 | .register %g2, #scratch | |
4264 | .register %g3, #scratch | |
4265 | .align 4 | |
4266 | subxc %g1, %g2, %g3 | |
4267 | fpadd8 %f0, %f2, %f4],, | |
4268 | [AC_DEFINE(HAVE_AS_SPARC5_VIS4, 1, | |
4269 | [Define if your assembler supports SPARC5 and VIS 4.0 instructions.])]) | |
4270 | ||
bcc3c3f1 JM |
4271 | gcc_GAS_CHECK_FEATURE([SPARC6 instructions], |
4272 | gcc_cv_as_sparc_sparc6,, | |
4273 | [-xarch=sparc6], | |
4274 | [.text | |
4275 | .register %g2, #scratch | |
4276 | .register %g3, #scratch | |
4277 | .align 4 | |
4278 | rd %entropy, %g1 | |
4279 | fpsll64x %f0, %f2, %f4],, | |
4280 | [AC_DEFINE(HAVE_AS_SPARC6, 1, | |
4281 | [Define if your assembler supports SPARC6 instructions.])]) | |
4282 | ||
1f65ae7a EB |
4283 | gcc_GAS_CHECK_FEATURE([LEON instructions], |
4284 | gcc_cv_as_sparc_leon,, | |
4285 | [-Aleon], | |
4286 | [.text | |
4287 | .register %g2, #scratch | |
4288 | .register %g3, #scratch | |
4289 | .align 4 | |
4290 | smac %g2, %g3, %g1 | |
4291 | umac %g2, %g3, %g1 | |
ba21a04a | 4292 | casa [[%g2]] 0xb, %g3, %g1],, |
1f65ae7a EB |
4293 | [AC_DEFINE(HAVE_AS_LEON, 1, |
4294 | [Define if your assembler supports LEON instructions.])]) | |
1cb36a98 RH |
4295 | ;; |
4296 | ||
4297 | changequote(,)dnl | |
c307e6dd | 4298 | i[34567]86-*-* | x86_64-*-*) |
1cb36a98 | 4299 | changequote([,])dnl |
f7e413e2 DK |
4300 | case $target_os in |
4301 | cygwin*) | |
4302 | # Full C++ conformance when using a shared libstdc++-v3 requires some | |
4303 | # support from the Cygwin DLL, which in more recent versions exports | |
4304 | # wrappers to aid in interposing and redirecting operators new, delete, | |
4305 | # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we | |
4306 | # are configuring for a version of Cygwin that exports the wrappers. | |
b802ae5c | 4307 | if test x$host = x$target && test x$host_cpu = xi686; then |
f7e413e2 DK |
4308 | AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) |
4309 | else | |
4310 | # Can't check presence of libc functions during cross-compile, so | |
4311 | # we just have to assume we're building for an up-to-date target. | |
4312 | gcc_ac_cygwin_dll_wrappers=yes | |
4313 | fi | |
4314 | AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, | |
4315 | [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], | |
4316 | [Define if you want to generate code by default that assumes that the | |
4317 | Cygwin DLL exports wrappers to support libstdc++ function replacement.]) | |
4318 | esac | |
d38bc601 | 4319 | case $target_os in |
ee2499b4 | 4320 | cygwin* | pe | mingw32*) |
233215fe DK |
4321 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
4322 | # definition is used unconditionally to initialise the default state of | |
4323 | # the target option variable that governs usage of the feature. | |
4324 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
4325 | [2,19,52],,[.comm foo,1,32]) | |
4326 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
4327 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
4328 | [Define if your assembler supports specifying the alignment | |
4329 | of objects allocated using the GAS .comm command.]) | |
d38bc601 BF |
4330 | # Used for DWARF 2 in PE |
4331 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
4332 | gcc_cv_as_ix86_pe_secrel32, | |
4333 | [2,15,91],, | |
4334 | [.text | |
4335 | foo: nop | |
4336 | .data | |
4337 | .secrel32 foo], | |
4338 | [if test x$gcc_cv_ld != x \ | |
4339 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
4340 | gcc_cv_as_ix86_pe_secrel32=yes | |
4341 | fi | |
4342 | rm -f conftest], | |
4343 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
4344 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
3bec79c5 DK |
4345 | # Test if the assembler supports the extended form of the .section |
4346 | # directive that specifies section alignment. LTO support uses this, | |
4347 | # but normally only after installation, so we warn but don't fail the | |
4348 | # configure if LTO is enabled but the assembler does not support it. | |
4349 | gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align, | |
4350 | [2,20,1],-fatal-warnings,[.section lto_test,"dr0"]) | |
4351 | if test x$gcc_cv_as_section_has_align != xyes; then | |
4352 | case ",$enable_languages," in | |
4353 | *,lto,*) | |
4354 | AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.]) | |
4355 | ;; | |
4356 | esac | |
4357 | fi | |
d38bc601 BF |
4358 | ;; |
4359 | esac | |
4360 | ||
8c2e5ecf RO |
4361 | gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,, |
4362 | [-xbrace_comment=no], [.text],, | |
4363 | [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1, | |
4364 | [Define if your assembler supports -xbrace_comment option.])]) | |
4365 | ||
8ada417f | 4366 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
a3a5e3d1 | 4367 | gcc_cv_as_ix86_filds,,, |
005f915e | 4368 | [filds (%ebp); fists (%ebp)],, |
a3a5e3d1 UB |
4369 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, |
4370 | [Define if your assembler uses filds and fists mnemonics.])]) | |
4371 | ||
4372 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
4373 | gcc_cv_as_ix86_fildq,,, | |
005f915e | 4374 | [fildq (%ebp); fistpq (%ebp)],, |
a3a5e3d1 UB |
4375 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, |
4376 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
8ada417f | 4377 | |
f6f5dff2 RO |
4378 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
4379 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
4380 | [cmovl.l %edx, %eax],, | |
4381 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
4382 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
4383 | ||
b6c03bcd RS |
4384 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
4385 | gcc_cv_as_ix86_ffreep,,, | |
4386 | [ffreep %st(1)],, | |
4387 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
4388 | [Define if your assembler supports the ffreep mnemonic.])]) | |
4389 | ||
ed104137 RO |
4390 | gcc_GAS_CHECK_FEATURE([.quad directive], |
4391 | gcc_cv_as_ix86_quad,,, | |
4392 | [.quad 0],, | |
4393 | [AC_DEFINE(HAVE_AS_IX86_QUAD, 1, | |
4394 | [Define if your assembler supports the .quad directive.])]) | |
4395 | ||
38ca3765 UB |
4396 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
4397 | gcc_cv_as_ix86_sahf,,, | |
953c29f7 UB |
4398 | [.code64 |
4399 | sahf],, | |
38ca3765 | 4400 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, |
953c29f7 | 4401 | [Define if your assembler supports the sahf mnemonic in 64bit mode.])]) |
38ca3765 | 4402 | |
fe04878d UB |
4403 | gcc_GAS_CHECK_FEATURE([interunit movq mnemonic], |
4404 | gcc_cv_as_ix86_interunit_movq,,, | |
4405 | [.code64 | |
4406 | movq %mm0, %rax | |
13a26a7d UB |
4407 | movq %rax, %xmm0]) |
4408 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ, | |
4409 | [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`], | |
4410 | [Define if your assembler supports interunit movq mnemonic.]) | |
fe04878d | 4411 | |
5dcfdccd KY |
4412 | gcc_GAS_CHECK_FEATURE([hle prefixes], |
4413 | gcc_cv_as_ix86_hle,,, | |
54af4523 | 4414 | [lock xacquire cmpxchg %esi, (%ecx)],, |
5dcfdccd KY |
4415 | [AC_DEFINE(HAVE_AS_IX86_HLE, 1, |
4416 | [Define if your assembler supports HLE prefixes.])]) | |
4417 | ||
afd2c302 SD |
4418 | gcc_GAS_CHECK_FEATURE([swap suffix], |
4419 | gcc_cv_as_ix86_swap,,, | |
4420 | [movl.s %esp, %ebp],, | |
4421 | [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, | |
4422 | [Define if your assembler supports the swap suffix.])]) | |
4423 | ||
68b92f78 RS |
4424 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
4425 | gcc_cv_as_ix86_diff_sect_delta,,, | |
4426 | [.section .rodata | |
4427 | .L1: | |
4428 | .long .L2-.L1 | |
4429 | .long .L3-.L1 | |
4430 | .text | |
4431 | .L3: nop | |
4432 | .L2: nop],, | |
4433 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
4434 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
4435 | ||
2433310d RO |
4436 | gcc_GAS_CHECK_FEATURE([rep and lock prefix], |
4437 | gcc_cv_as_ix86_rep_lock_prefix,,, | |
4438 | [rep movsl | |
43283548 UB |
4439 | rep ret |
4440 | rep nop | |
4441 | rep bsf %ecx, %eax | |
4442 | rep bsr %ecx, %eax | |
4bade865 | 4443 | lock addl %edi, (%eax,%esi) |
7085bfb6 UB |
4444 | lock orl $0, (%esp)],, |
4445 | [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1, | |
4446 | [Define if the assembler supports 'rep <insn>, lock <insn>'.])]) | |
2433310d | 4447 | |
88f7c49a RM |
4448 | gcc_GAS_CHECK_FEATURE([ud2 mnemonic], |
4449 | gcc_cv_as_ix86_ud2,,, | |
4450 | [ud2],, | |
4451 | [AC_DEFINE(HAVE_AS_IX86_UD2, 1, | |
4452 | [Define if your assembler supports the 'ud2' mnemonic.])]) | |
4453 | ||
e1ebd31d UB |
4454 | # Enforce 32-bit output with gas and gld. |
4455 | if test x$gas = xyes; then | |
4456 | as_ix86_gas_32_opt="--32" | |
4457 | fi | |
4458 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4459 | if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then | |
4460 | ld_ix86_gld_32_opt="-melf_i386_sol2" | |
4461 | else | |
4462 | ld_ix86_gld_32_opt="-melf_i386" | |
4463 | fi | |
4464 | fi | |
4465 | ||
8950516e | 4466 | gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc], |
e1ebd31d UB |
4467 | gcc_cv_as_ix86_tlsgdplt,, |
4468 | [$as_ix86_gas_32_opt], | |
0f24748c RO |
4469 | [call tls_gd@tlsgdplt], |
4470 | [if test x$gcc_cv_ld != x \ | |
e1ebd31d | 4471 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4472 | gcc_cv_as_ix86_tlsgdplt=yes |
4473 | fi | |
4474 | rm -f conftest], | |
8950516e | 4475 | [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1, |
0f24748c | 4476 | [Define if your assembler and linker support @tlsgdplt.])]) |
8950516e | 4477 | |
040c446d RO |
4478 | conftest_s=' |
4479 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4480 | tls_ld: | |
4481 | .section .text,"ax",@progbits | |
4482 | call tls_ld@tlsldmplt' | |
e1ebd31d | 4483 | |
8950516e | 4484 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc], |
e1ebd31d UB |
4485 | gcc_cv_as_ix86_tlsldmplt,, |
4486 | [$as_ix86_gas_32_opt], | |
040c446d | 4487 | [$conftest_s], |
0f24748c | 4488 | [if test x$gcc_cv_ld != x \ |
e1ebd31d | 4489 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4490 | gcc_cv_as_ix86_tlsldmplt=yes |
4491 | fi | |
caa16d41 RO |
4492 | rm -f conftest]) |
4493 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT, | |
4494 | [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`], | |
4495 | [Define to 1 if your assembler and linker support @tlsldmplt.]) | |
4496 | ||
caa16d41 RO |
4497 | conftest_s=' |
4498 | .section .text,"ax",@progbits | |
4499 | .globl _start | |
4500 | .type _start, @function | |
4501 | _start: | |
4502 | leal value@tlsldm(%ebx), %eax | |
4503 | call ___tls_get_addr@plt | |
4504 | ||
4505 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4506 | .type value, @object | |
4507 | value:' | |
4508 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], | |
4509 | gcc_cv_as_ix86_tlsldm,, | |
49677530 | 4510 | [$as_ix86_gas_32_opt], |
caa16d41 RO |
4511 | [$conftest_s], |
4512 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
49677530 | 4513 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then |
caa16d41 RO |
4514 | if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ |
4515 | || dis conftest 2>/dev/null | grep nop > /dev/null; then | |
4516 | gcc_cv_as_ix86_tlsldm=yes | |
4517 | fi | |
4518 | fi | |
4519 | rm -f conftest]) | |
4520 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM, | |
4521 | [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], | |
4522 | [Define to 1 if your assembler and linker support @tlsldm.]) | |
8950516e | 4523 | |
c0597759 L |
4524 | conftest_s=' |
4525 | .data | |
4526 | bar: | |
4527 | .byte 1 | |
4528 | .text | |
4529 | .global _start | |
4530 | _start: | |
4531 | cmpl $0, bar@GOT | |
4532 | jmp *_start@GOT' | |
4533 | gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], | |
4534 | gcc_cv_as_ix86_got32x,, | |
49677530 | 4535 | [$as_ix86_gas_32_opt], |
c0597759 L |
4536 | [$conftest_s], |
4537 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4538 | && test x$gcc_cv_readelf != x \ | |
4539 | && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ | |
4540 | | grep R_386_GOT32X > /dev/null 2>&1 \ | |
49677530 | 4541 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then |
c0597759 L |
4542 | if $gcc_cv_objdump -dw conftest 2>&1 \ |
4543 | | grep 0xffffff > /dev/null 2>&1; then | |
4544 | gcc_cv_as_ix86_got32x=no | |
4545 | else | |
4546 | gcc_cv_as_ix86_got32x=yes | |
4547 | fi | |
4548 | fi | |
4549 | rm -f conftest]) | |
4550 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, | |
4551 | [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], | |
4552 | [Define 0/1 if your assembler and linker support @GOT.]) | |
e1ebd31d UB |
4553 | |
4554 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
4555 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0], | |
4556 | [$as_ix86_gas_32_opt], | |
4557 | [ .text | |
4558 | .L0: | |
4559 | nop | |
4560 | .data | |
4561 | .long .L0@GOTOFF]) | |
4562 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
4563 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
4564 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
4565 | ||
de86ff8f L |
4566 | conftest_s=' |
4567 | .section .text,"ax",@progbits | |
4568 | .globl _start | |
4569 | .type _start, @function | |
4570 | _start: | |
4571 | leal ld@tlsldm(%ecx), %eax | |
4572 | call *___tls_get_addr@GOT(%ecx) | |
4573 | leal gd@tlsgd(%ecx), %eax | |
4574 | call *___tls_get_addr@GOT(%ecx) | |
4575 | ||
4576 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4577 | .type ld, @object | |
4578 | ld: | |
4579 | .byte 0 | |
4580 | .globl gd | |
4581 | .type gd, @object | |
4582 | gd: | |
4583 | .byte 0' | |
4584 | gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT], | |
4585 | gcc_cv_as_ix86_tls_get_addr_via_got,, | |
4586 | [$as_ix86_gas_32_opt], | |
4587 | [$conftest_s], | |
4588 | [if test x$gcc_cv_ld != x \ | |
4589 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then | |
4590 | gcc_cv_as_ix86_tls_get_addr_via_got=yes | |
4591 | fi | |
4592 | rm -f conftest]) | |
4593 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLS_GET_ADDR_GOT, | |
4594 | [`if test x"$gcc_cv_as_ix86_tls_get_addr_via_got" = xyes; then echo 1; else echo 0; fi`], | |
4595 | [Define 0/1 if your assembler and linker support calling ___tls_get_addr via GOT.]) | |
1cb36a98 | 4596 | ;; |
ef1ecf87 RH |
4597 | |
4598 | ia64*-*-*) | |
8ada417f ZW |
4599 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
4600 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
cfa9ee99 | 4601 | [ .text |
ef1ecf87 RH |
4602 | addl r15 = @ltoffx(x#), gp |
4603 | ;; | |
d8b3b4f4 JM |
4604 | ld8.mov r16 = [[r15]], x# |
4605 | ],, | |
8ada417f ZW |
4606 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
4607 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
4608 | ||
ef1ecf87 | 4609 | ;; |
8ada417f | 4610 | |
2c4a9cff | 4611 | powerpc*-*-*) |
4b7a5264 | 4612 | |
8ada417f | 4613 | case $target in |
8af4d362 PB |
4614 | *-*-darwin*) |
4615 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
4616 | gcc_cv_as_machine_directive,,, | |
4617 | [ .machine ppc7400]) | |
4618 | if test x$gcc_cv_as_machine_directive != xyes; then | |
4619 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
4620 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
4621 | test x$build = x$target && exit 1 | |
4622 | fi | |
4b7a5264 DE |
4623 | ;; |
4624 | esac | |
4625 | ||
4626 | case $target in | |
4627 | *-*-aix*) conftest_s=' .machine "pwr5" | |
4628 | .csect .text[[PR]] | |
4629 | mfcr 3,128';; | |
4630 | *-*-darwin*) conftest_s=' .text | |
6b37db3c | 4631 | mfcr r3,128';; |
4c67db14 | 4632 | *) conftest_s=' .machine power4 |
d2ab3e37 | 4633 | .text |
6b37db3c | 4634 | mfcr 3,128';; |
8ada417f | 4635 | esac |
8ada417f ZW |
4636 | |
4637 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
4638 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
4639 | [$conftest_s],, | |
4640 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
4641 | [Define if your assembler supports mfcr field.])]) | |
432218ba | 4642 | |
7f970b70 AM |
4643 | case $target in |
4644 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
4645 | LCF..0: | |
4646 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
4647 | *-*-darwin*) | |
4648 | conftest_s=' .text | |
4649 | LCF0: | |
4650 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
4651 | *) conftest_s=' .text | |
4652 | .LCF0: | |
4653 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
4654 | esac | |
4655 | ||
695d8830 AS |
4656 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
4657 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
4658 | [$conftest_s],, | |
4659 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
4660 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
4661 | ||
d40c9e33 PB |
4662 | case $target in |
4663 | *-*-aix*) conftest_s=' .machine "pwr7" | |
4664 | .csect .text[[PR]] | |
4665 | lxvd2x 1,2,3';; | |
4666 | *) conftest_s=' .machine power7 | |
4667 | .text | |
4668 | lxvd2x 1,2,3';; | |
4669 | esac | |
4670 | ||
4671 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
cacf1ca8 | 4672 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
d40c9e33 PB |
4673 | [$conftest_s],, |
4674 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
4675 | [Define if your assembler supports VSX instructions.])]) | |
4676 | ||
e51917ae JM |
4677 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
4678 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
4679 | [.gnu_attribute 4,1],, | |
4680 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4681 | [Define if your assembler supports .gnu_attribute.])]) | |
9752c4ad AM |
4682 | |
4683 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
4684 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
4685 | [ bl __tls_get_addr(x@tlsgd)],, | |
4686 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
4687 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
636cf8b1 | 4688 | |
157bb85d UW |
4689 | gcc_GAS_CHECK_FEATURE([prologue entry point marker support], |
4690 | gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings, | |
4691 | [ .reloc .,R_PPC64_ENTRY; nop],, | |
4692 | [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1, | |
4693 | [Define if your assembler supports the R_PPC64_ENTRY relocation.])]) | |
4694 | ||
3f79c0ad AM |
4695 | gcc_GAS_CHECK_FEATURE([plt sequence marker support], |
4696 | gcc_cv_as_powerpc_pltseq_markers, [2,31,0],-a32 --fatal-warnings, | |
4697 | [ .reloc .,R_PPC_PLTSEQ; nop],, | |
4698 | [AC_DEFINE(HAVE_AS_PLTSEQ, 1, | |
4699 | [Define if your assembler supports R_PPC*_PLTSEQ relocations.])]) | |
4700 | ||
636cf8b1 RS |
4701 | case $target in |
4702 | *-*-aix*) | |
a52f938b | 4703 | gcc_GAS_CHECK_FEATURE([AIX .ref support], |
e8548a47 | 4704 | gcc_cv_as_aix_ref, [2,21,0],, |
636cf8b1 RS |
4705 | [ .csect stuff[[rw]] |
4706 | stuff: | |
4707 | .long 1 | |
4708 | .extern sym | |
4709 | .ref sym | |
4710 | ],, | |
4711 | [AC_DEFINE(HAVE_AS_REF, 1, | |
4712 | [Define if your assembler supports .ref])]) | |
53b5ce19 | 4713 | |
a52f938b | 4714 | gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support], |
51fbbb92 | 4715 | gcc_cv_as_aix_dwloc, [2,21,0],, |
a52f938b DE |
4716 | [ .dwsect 0xA0000 |
4717 | Lframe..0: | |
eb657a49 | 4718 | .vbyte 4,Lframe..0 |
51fbbb92 DE |
4719 | ],, |
4720 | [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1, | |
a52f938b | 4721 | [Define if your assembler supports AIX debug frame section label reference.])]) |
51fbbb92 DE |
4722 | ;; |
4723 | esac | |
4724 | ;; | |
4725 | ||
8ada417f ZW |
4726 | mips*-*-*) |
4727 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
4728 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
4729 | [ lw $4,%gp_rel(foo)($4)],, | |
4730 | [if test x$target_cpu_default = x | |
4731 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
4732 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
4733 | fi]) | |
51fbbb92 | 4734 | |
4551169f RS |
4735 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
4736 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
4737 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
4738 | [Define if the assembler understands -mno-shared.])]) | |
dcb957d9 JM |
4739 | |
4740 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4741 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
4742 | [.gnu_attribute 4,1],, | |
4743 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4744 | [Define if your assembler supports .gnu_attribute.])]) | |
a44380d2 | 4745 | |
050af144 | 4746 | gcc_GAS_CHECK_FEATURE([.module support], |
a871c139 MF |
4747 | gcc_cv_as_mips_dot_module,,[-32], |
4748 | [.module mips2 | |
4749 | .module fp=xx],, | |
050af144 MF |
4750 | [AC_DEFINE(HAVE_AS_DOT_MODULE, 1, |
4751 | [Define if your assembler supports .module.])]) | |
4752 | if test x$gcc_cv_as_mips_dot_module = xno \ | |
4753 | && test x$with_fp_32 != x; then | |
4754 | AC_MSG_ERROR( | |
4755 | [Requesting --with-fp-32= requires assembler support for .module.]) | |
4756 | fi | |
4757 | ||
22c4c869 | 4758 | gcc_GAS_CHECK_FEATURE([.micromips support], |
b1485a33 | 4759 | gcc_cv_as_micromips_support,,[--fatal-warnings], |
22c4c869 CM |
4760 | [.set micromips],, |
4761 | [AC_DEFINE(HAVE_GAS_MICROMIPS, 1, | |
4762 | [Define if your assembler supports the .set micromips directive])]) | |
4763 | ||
a44380d2 JM |
4764 | gcc_GAS_CHECK_FEATURE([.dtprelword support], |
4765 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
4766 | [.section .tdata,"awT",@progbits | |
4767 | x: | |
4768 | .word 2 | |
4769 | .text | |
4770 | .dtprelword x+0x8000],, | |
4771 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
4772 | [Define if your assembler supports .dtprelword.])]) | |
b53da244 | 4773 | |
293b77b0 CF |
4774 | gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support], |
4775 | gcc_cv_as_mips_dspr1_mult,,, | |
4776 | [ .set mips32r2 | |
4777 | .set nodspr2 | |
4778 | .set dsp | |
4779 | madd $ac3,$4,$5 | |
4780 | maddu $ac3,$4,$5 | |
4781 | msub $ac3,$4,$5 | |
4782 | msubu $ac3,$4,$5 | |
4783 | mult $ac3,$4,$5 | |
4784 | multu $ac3,$4,$5],, | |
4785 | [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1, | |
4786 | [Define if your assembler supports DSPR1 mult.])]) | |
4787 | ||
b53da244 AN |
4788 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) |
4789 | gcc_cv_as_ld_jalr_reloc=no | |
4790 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
4791 | if test $in_tree_ld = yes ; then | |
4792 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
4793 | && test $in_tree_ld_is_elf = yes; then | |
4794 | gcc_cv_as_ld_jalr_reloc=yes | |
4795 | fi | |
4796 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
4797 | echo ' .ent x' > conftest.s | |
1e1f96b5 CM |
4798 | echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s |
4799 | echo ' lw $25,%call16(y)($28)' >> conftest.s | |
b53da244 AN |
4800 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s |
4801 | echo '1: jalr $25' >> conftest.s | |
4802 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
4803 | echo '1: jalr $25' >> conftest.s | |
4804 | echo ' .end x' >> conftest.s | |
4805 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
4806 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
bc492e47 RO |
4807 | if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \ |
4808 | && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then | |
b53da244 AN |
4809 | gcc_cv_as_ld_jalr_reloc=yes |
4810 | fi | |
4811 | fi | |
4812 | rm -f conftest.* | |
4813 | fi | |
4814 | fi | |
4815 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
4816 | if test x$target_cpu_default = x; then | |
4817 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
4818 | else | |
4819 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
4820 | fi | |
4821 | fi | |
4822 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
49576e25 RS |
4823 | |
4824 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
4825 | [gcc_cv_ld_mips_personality_relaxation], | |
4826 | [gcc_cv_ld_mips_personality_relaxation=no | |
4827 | if test $in_tree_ld = yes ; then | |
4828 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
4829 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
4830 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
4831 | gcc_cv_ld_mips_personality_relaxation=yes | |
4832 | fi | |
4833 | elif test x$gcc_cv_as != x \ | |
4834 | -a x$gcc_cv_ld != x \ | |
4835 | -a x$gcc_cv_readelf != x ; then | |
4836 | cat > conftest.s <<EOF | |
4837 | .cfi_startproc | |
4838 | .cfi_personality 0x80,indirect_ptr | |
4839 | .ent test | |
4840 | test: | |
4841 | nop | |
4842 | .end test | |
4843 | .cfi_endproc | |
4844 | ||
4845 | .section .data,"aw",@progbits | |
4846 | indirect_ptr: | |
4847 | .dc.a personality | |
4848 | EOF | |
4849 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
4850 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
4851 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
4852 | | grep TEXTREL > /dev/null 2>&1; then | |
4853 | : | |
4854 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
4855 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
4856 | : | |
4857 | else | |
4858 | gcc_cv_ld_mips_personality_relaxation=yes | |
4859 | fi | |
4860 | fi | |
4861 | fi | |
4862 | rm -f conftest.s conftest.o conftest]) | |
4863 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
4864 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
4865 | [Define if your linker can relax absolute .eh_frame personality | |
4866 | pointers into PC-relative form.]) | |
4867 | fi | |
ff3f3951 MR |
4868 | |
4869 | gcc_GAS_CHECK_FEATURE([-mnan= support], | |
4870 | gcc_cv_as_mips_nan,, | |
4871 | [-mnan=2008],,, | |
4872 | [AC_DEFINE(HAVE_AS_NAN, 1, | |
4873 | [Define if the assembler understands -mnan=.])]) | |
4874 | if test x$gcc_cv_as_mips_nan = xno \ | |
4875 | && test x$with_nan != x; then | |
4876 | AC_MSG_ERROR( | |
4877 | [Requesting --with-nan= requires assembler support for -mnan=]) | |
4878 | fi | |
dbad5e72 | 4879 | ;; |
8e966210 KC |
4880 | riscv*-*-*) |
4881 | gcc_GAS_CHECK_FEATURE([.attribute support], | |
4882 | gcc_cv_as_riscv_attribute, [2,32,0],, | |
4883 | [.attribute stack_align,4],, | |
4884 | [AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1, | |
4885 | [Define if your assembler supports .attribute.])]) | |
4886 | ;; | |
45901378 AK |
4887 | s390*-*-*) |
4888 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4889 | gcc_cv_as_s390_gnu_attribute, [2,18,0],, | |
4890 | [.gnu_attribute 8,1],, | |
4891 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4892 | [Define if your assembler supports .gnu_attribute.])]) | |
ec47b086 DV |
4893 | gcc_GAS_CHECK_FEATURE([.machine and .machinemode support], |
4894 | gcc_cv_as_s390_machine_machinemode, [2,24,0],, | |
4895 | [ .machinemode push | |
4896 | .machinemode pop | |
4897 | .machine push | |
4898 | .machine pop],, | |
4899 | [AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1, | |
4900 | [Define if your assembler supports .machine and .machinemode.])]) | |
4901 | gcc_GAS_CHECK_FEATURE([architecture modifiers support], | |
4902 | gcc_cv_as_s390_architecture_modifiers, [2,26,0],, | |
4903 | [ .machine z13+vx ],, | |
4904 | [AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1, | |
4905 | [Define if your assembler supports architecture modifiers.])]) | |
b8923037 AK |
4906 | gcc_GAS_CHECK_FEATURE([vector load/store alignment hints], |
4907 | gcc_cv_as_s390_vector_loadstore_alignment_hints, [2,31,0],, | |
4908 | [ vl %v24,0(%r15),3 ],, | |
4909 | [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS, 1, | |
4910 | [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument.])]) | |
4911 | ||
45901378 | 4912 | ;; |
dbad5e72 SE |
4913 | esac |
4914 | ||
4915 | # Mips and HP-UX need the GNU assembler. | |
4916 | # Linux on IA64 might be able to use the Intel assembler. | |
8ada417f | 4917 | |
dbad5e72 SE |
4918 | case "$target" in |
4919 | mips*-*-* | *-*-hpux* ) | |
82563d35 RS |
4920 | if test x$gas_flag = xyes \ |
4921 | || test x"$host" != x"$build" \ | |
4922 | || test ! -x "$gcc_cv_as" \ | |
4923 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
4924 | : | |
4925 | else | |
4926 | echo "*** This configuration requires the GNU assembler" >&2 | |
4927 | exit 1 | |
4928 | fi | |
8ada417f ZW |
4929 | ;; |
4930 | esac | |
dbad5e72 | 4931 | |
9d147085 RH |
4932 | # ??? Not all targets support dwarf2 debug_line, even within a version |
4933 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
4934 | # info to the output file. So, as supported targets are added to gas 2.11, | |
4935 | # add some instruction here to (also) show we expect this might work. | |
4936 | # ??? Once 2.11 is released, probably need to add first known working | |
4937 | # version to the per-target configury. | |
7fa2619a | 4938 | case "$cpu_type" in |
56856b58 | 4939 | aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \ |
303ebdaf | 4940 | | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu \ |
7c22e690 | 4941 | | tilegx | tilepro | visium | xstormy16 | xtensa) |
9d147085 RH |
4942 | insn="nop" |
4943 | ;; | |
7fa2619a | 4944 | ia64 | s390) |
9d147085 RH |
4945 | insn="nop 0" |
4946 | ;; | |
7fa2619a | 4947 | mmix) |
2853bc5a HPN |
4948 | insn="swym 0" |
4949 | ;; | |
8ada417f ZW |
4950 | esac |
4951 | if test x"$insn" != x; then | |
4952 | conftest_s="\ | |
4953 | .file 1 \"conftest.s\" | |
4954 | .loc 1 3 0 | |
4955 | $insn" | |
4956 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
4957 | gcc_cv_as_dwarf2_debug_line, | |
4958 | [elf,2,11,0],, [$conftest_s], | |
080a5bb0 EB |
4959 | [if test x$gcc_cv_objdump != x \ |
4960 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
4961 | | grep debug_line > /dev/null 2>&1; then | |
8ada417f | 4962 | gcc_cv_as_dwarf2_debug_line=yes |
f1b2727f IS |
4963 | elif test x$gcc_cv_otool != x \ |
4964 | && $gcc_cv_otool -l conftest.o 2> /dev/null \ | |
4965 | | grep debug_line > /dev/null 2>&1; then | |
4966 | gcc_cv_as_dwarf2_debug_line=yes | |
8ada417f ZW |
4967 | fi]) |
4968 | ||
4969 | # The .debug_line file table must be in the exact order that | |
4970 | # we specified the files, since these indices are also used | |
4971 | # by DW_AT_decl_file. Approximate this test by testing if | |
4972 | # the assembler bitches if the same index is assigned twice. | |
4973 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
4974 | gcc_cv_as_dwarf2_file_buggy,,, | |
4975 | [ .file 1 "foo.s" | |
4976 | .file 1 "bar.s"]) | |
4977 | ||
4978 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
4979 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
bd2b9f1e | 4980 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
8ada417f | 4981 | [Define if your assembler supports dwarf2 .file/.loc directives, |
eaec9b3d | 4982 | and preserves file table indices exactly as given.]) |
bd2b9f1e AO |
4983 | |
4984 | if test $gcc_cv_as_leb128 = yes; then | |
4985 | conftest_s="\ | |
4986 | .file 1 \"conftest.s\" | |
4987 | .loc 1 3 0 view .LVU1 | |
4988 | $insn | |
4989 | .data | |
4990 | .uleb128 .LVU1 | |
4991 | .uleb128 .LVU1 | |
4992 | " | |
4993 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support], | |
4994 | gcc_cv_as_dwarf2_debug_view, | |
4995 | [elf,2,27,0],,[$conftest_s],, | |
4996 | [AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1, | |
4997 | [Define if your assembler supports views in dwarf2 .loc directives.])]) | |
4998 | fi | |
8ada417f ZW |
4999 | fi |
5000 | ||
5001 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
5002 | gcc_cv_as_gdwarf2_flag, | |
5003 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
5004 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
5005 | [Define if your assembler supports the --gdwarf2 option.])]) | |
5006 | ||
5007 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
5008 | gcc_cv_as_gstabs_flag, | |
d9f069ab | 5009 | [elf,2,11,0], [--gstabs], [$insn],, |
8ada417f ZW |
5010 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, |
5011 | [Define if your assembler supports the --gstabs option.])]) | |
c8aea42c PB |
5012 | |
5013 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
5014 | gcc_cv_as_debug_prefix_map_flag, | |
303a4698 | 5015 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
c8aea42c PB |
5016 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
5017 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
9d147085 | 5018 | fi |
5f0e9ea2 | 5019 | |
29d7cbd1 | 5020 | gcc_GAS_CHECK_FEATURE([compressed debug sections], |
7320a4b5 | 5021 | gcc_cv_as_compress_debug,,,, |
29d7cbd1 RO |
5022 | [# gas compiled without zlib cannot compress debug sections and warns |
5023 | # about it, but still exits successfully. So check for this, too. | |
5024 | if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null | |
5025 | then | |
5026 | gcc_cv_as_compress_debug=0 | |
7320a4b5 RO |
5027 | # Since binutils 2.26, gas supports --compress-debug-sections=type, |
5028 | # defaulting to the ELF gABI format. | |
5029 | elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1 | |
5030 | then | |
5031 | gcc_cv_as_compress_debug=2 | |
5032 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5033 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5034 | # Before binutils 2.26, gas only supported --compress-debug-options and | |
5035 | # emitted the traditional GNU format. | |
29d7cbd1 RO |
5036 | elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1 |
5037 | then | |
5038 | gcc_cv_as_compress_debug=1 | |
5039 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5040 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5041 | else | |
5042 | gcc_cv_as_compress_debug=0 | |
29d7cbd1 RO |
5043 | fi]) |
5044 | AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug, | |
5045 | [Define to the level of your assembler's compressed debug section support.]) | |
5046 | AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option", | |
5047 | [Define to the assembler option to enable compressed debug sections.]) | |
5048 | AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option", | |
5049 | [Define to the assembler option to disable compressed debug sections.]) | |
5050 | ||
28e6bb13 NC |
5051 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
5052 | ,, | |
5053 | [.lcomm bar,4,16],, | |
5054 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
5055 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
5056 | ||
75a2bcc0 JM |
5057 | if test x$with_sysroot = x && test x$host = x$target \ |
5058 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
5059 | && test "$prefix" != "NONE"; then | |
5060 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
5061 | [Define to PREFIX/include if cpp should also search that directory.]) | |
5062 | fi | |
5063 | ||
75a2bcc0 JM |
5064 | # Determine the version of glibc, if any, used on the target. |
5065 | AC_MSG_CHECKING([for target glibc version]) | |
5066 | AC_ARG_WITH([glibc-version], | |
5067 | [AS_HELP_STRING([--with-glibc-version=M.N], | |
5068 | [assume GCC used with glibc version M.N or later])], [ | |
5069 | if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then | |
5070 | glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` | |
5071 | glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` | |
5072 | else | |
5073 | AC_MSG_ERROR([option --with-glibc-version requires a version number M.N]) | |
5074 | fi], [ | |
5075 | glibc_version_major=0 | |
5076 | glibc_version_minor=0 | |
5077 | [if test -f $target_header_dir/features.h \ | |
5078 | && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \ | |
5079 | && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then | |
5080 | glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'` | |
5081 | glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'` | |
5082 | fi]]) | |
5083 | AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor]) | |
2f73a6c7 JM |
5084 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major], |
5085 | [GNU C Library major version number used on the target, or 0.]) | |
5086 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor], | |
5087 | [GNU C Library minor version number used on the target, or 0.]) | |
75a2bcc0 | 5088 | |
e31bcd1b | 5089 | AC_ARG_ENABLE(gnu-unique-object, |
87e6d9dc TB |
5090 | [AS_HELP_STRING([--enable-gnu-unique-object], |
5091 | [enable the use of the @gnu_unique_object ELF extension on glibc systems])], | |
e31bcd1b JM |
5092 | [case $enable_gnu_unique_object in |
5093 | yes | no) ;; | |
5094 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
5095 | Valid choices are 'yes' and 'no'.]) ;; | |
5096 | esac], | |
5097 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
5098 | [elf,2,19,52],, | |
5ab22850 RR |
5099 | [.type foo, '$target_type_format_char'gnu_unique_object],, |
5100 | # We need to unquote above to to use the definition from config.gcc. | |
e31bcd1b | 5101 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
75a2bcc0 JM |
5102 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )] |
5103 | )]) | |
e31bcd1b JM |
5104 | if test x$enable_gnu_unique_object = xyes; then |
5105 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
5106 | [Define if your assembler supports @gnu_unique_object.]) | |
5107 | fi | |
5108 | ||
03943c05 AO |
5109 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
5110 | [gcc_cv_as_line_zero], | |
5111 | [gcc_cv_as_line_zero=no | |
5112 | if test $in_tree_gas = yes; then | |
cf0eb7a1 | 5113 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
03943c05 AO |
5114 | elif test "x$gcc_cv_as" != x; then |
5115 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
5116 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
5117 | test "x`cat conftest.out`" = x | |
5118 | then | |
5119 | gcc_cv_as_line_zero=yes | |
5120 | else | |
5121 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
5122 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
5123 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
5124 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
5125 | fi | |
5126 | rm -f conftest.o conftest.s conftest.out | |
5127 | fi]) | |
5128 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
5129 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
5130 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
5131 | fi | |
5132 | ||
25e08379 PP |
5133 | AC_MSG_CHECKING(support for thin archives) |
5134 | thin_archive_support=no | |
5135 | echo 'int main (void) { return 0; }' > conftest.c | |
5136 | if ($AR --version | sed 1q | grep "GNU ar" \ | |
5137 | && $CC $CFLAGS -c conftest.c \ | |
5138 | && $AR rcT conftest.a conftest.o \ | |
5139 | && $CC $CFLAGS $LDFLAGS -o conftest conftest.a) >/dev/null 2>&1; then | |
5140 | thin_archive_support=yes | |
5141 | fi | |
5142 | rm -f conftest.c conftest.o conftest.a conftest | |
5143 | AC_MSG_RESULT($thin_archive_support) | |
5144 | AC_SUBST(thin_archive_support) | |
5145 | ||
275b60d6 JJ |
5146 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
5147 | gcc_cv_ld_eh_frame_hdr=no | |
34a86c2b | 5148 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
5149 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5150 | && test $in_tree_ld_is_elf = yes; then | |
275b60d6 JJ |
5151 | gcc_cv_ld_eh_frame_hdr=yes |
5152 | fi | |
5153 | elif test x$gcc_cv_ld != x; then | |
6961669f RO |
5154 | if echo "$ld_ver" | grep GNU > /dev/null; then |
5155 | # Check if linker supports --eh-frame-hdr option | |
8dc877eb | 5156 | if $gcc_cv_ld --help 2>&1 | grep eh-frame-hdr > /dev/null; then |
6961669f RO |
5157 | gcc_cv_ld_eh_frame_hdr=yes |
5158 | fi | |
5159 | else | |
5160 | case "$target" in | |
5161 | *-*-solaris2*) | |
e279edb0 RO |
5162 | # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251. |
5163 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then | |
6961669f RO |
5164 | gcc_cv_ld_eh_frame_hdr=yes |
5165 | fi | |
5166 | ;; | |
5167 | esac | |
5168 | fi | |
275b60d6 | 5169 | fi |
232b67d9 | 5170 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
275b60d6 JJ |
5171 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
5172 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
6961669f | 5173 | [Define if your linker supports .eh_frame_hdr.]) |
275b60d6 JJ |
5174 | fi |
5175 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
5176 | ||
5022315a RO |
5177 | AC_MSG_CHECKING(linker CIEv3 in .eh_frame support) |
5178 | gcc_cv_ld_eh_frame_ciev3=no | |
5179 | if test $in_tree_ld = yes ; then | |
5180 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5181 | && test $in_tree_ld_is_elf = yes; then | |
5182 | gcc_cv_ld_eh_frame_ciev3=yes | |
5183 | fi | |
5184 | elif test x$gcc_cv_ld != x; then | |
5185 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5186 | gcc_cv_ld_eh_frame_ciev3=yes | |
5187 | if test 0"$ld_date" -lt 20040513; then | |
5188 | if test -n "$ld_date"; then | |
5189 | # If there was date string, but was earlier than 2004-05-13, fail | |
5190 | gcc_cv_ld_eh_frame_ciev3=no | |
5191 | elif test "$ld_vers_major" -lt 2; then | |
5192 | gcc_cv_ld_eh_frame_ciev3=no | |
5193 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
5194 | gcc_cv_ld_eh_frame_ciev3=no | |
5195 | fi | |
5196 | fi | |
5197 | else | |
5198 | case "$target" in | |
5199 | *-*-solaris2*) | |
5200 | # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1. | |
5201 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then | |
5202 | gcc_cv_ld_eh_frame_ciev3=yes | |
5203 | fi | |
5204 | ;; | |
5205 | esac | |
5206 | fi | |
5207 | fi | |
5208 | AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3, | |
5209 | [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`], | |
5210 | [Define 0/1 if your linker supports CIE v3 in .eh_frame.]) | |
5211 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3) | |
5212 | ||
24a4dd31 JJ |
5213 | AC_MSG_CHECKING(linker position independent executable support) |
5214 | gcc_cv_ld_pie=no | |
5215 | if test $in_tree_ld = yes ; then | |
df2a1cc4 RO |
5216 | case "$target" in |
5217 | # Full PIE support on Solaris was only introduced in gld 2.26. | |
5218 | *-*-solaris2*) gcc_gld_pie_min_version=26 ;; | |
5219 | *) gcc_gld_pie_min_version=15 ;; | |
5220 | esac | |
5221 | 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 | 5222 | && test $in_tree_ld_is_elf = yes; then |
24a4dd31 JJ |
5223 | gcc_cv_ld_pie=yes |
5224 | fi | |
5225 | elif test x$gcc_cv_ld != x; then | |
df2a1cc4 | 5226 | # Check if linker supports -pie option |
8dc877eb | 5227 | if $gcc_cv_ld --help 2>&1 | grep -- -pie > /dev/null; then |
df2a1cc4 RO |
5228 | gcc_cv_ld_pie=yes |
5229 | case "$target" in | |
5230 | *-*-solaris2*) | |
5231 | if echo "$ld_ver" | grep GNU > /dev/null \ | |
5232 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5233 | gcc_cv_ld_pie=no | |
5234 | fi | |
5235 | ;; | |
5236 | esac | |
5237 | else | |
5238 | case "$target" in | |
5239 | *-*-solaris2.1[[1-9]]*) | |
f021f1d3 | 5240 | # Solaris 11.3 added PIE support. |
df2a1cc4 RO |
5241 | if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then |
5242 | gcc_cv_ld_pie=yes | |
24a4dd31 | 5243 | fi |
df2a1cc4 RO |
5244 | ;; |
5245 | esac | |
5246 | fi | |
24a4dd31 JJ |
5247 | fi |
5248 | if test x"$gcc_cv_ld_pie" = xyes; then | |
5249 | AC_DEFINE(HAVE_LD_PIE, 1, | |
df2a1cc4 | 5250 | [Define if your linker supports PIE option.]) |
24a4dd31 JJ |
5251 | fi |
5252 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
77ad54d9 ST |
5253 | |
5254 | AC_MSG_CHECKING(linker PIE support with copy reloc) | |
5255 | gcc_cv_ld_pie_copyreloc=no | |
5256 | if test $gcc_cv_ld_pie = yes ; then | |
5257 | if test $in_tree_ld = yes ; then | |
5258 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
5259 | gcc_cv_ld_pie_copyreloc=yes | |
5260 | fi | |
5261 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5262 | # Check if linker supports -pie option with copy reloc | |
5263 | case "$target" in | |
5264 | i?86-*-linux* | x86_64-*-linux*) | |
5265 | cat > conftest1.s <<EOF | |
5266 | .globl a_glob | |
5267 | .data | |
5268 | .type a_glob, @object | |
5269 | .size a_glob, 4 | |
5270 | a_glob: | |
5271 | .long 2 | |
5272 | EOF | |
5273 | cat > conftest2.s <<EOF | |
5274 | .text | |
5275 | .globl main | |
5276 | .type main, @function | |
5277 | main: | |
5278 | movl %eax, a_glob(%rip) | |
5279 | .size main, .-main | |
7b3592ee L |
5280 | .globl ptr |
5281 | .section .data.rel,"aw",@progbits | |
5282 | .type ptr, @object | |
5283 | ptr: | |
5284 | .quad a_glob | |
77ad54d9 ST |
5285 | EOF |
5286 | if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5287 | && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \ | |
5288 | && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5289 | && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then | |
5290 | gcc_cv_ld_pie_copyreloc=yes | |
5291 | fi | |
5292 | rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s | |
5293 | ;; | |
5294 | esac | |
5295 | fi | |
77ad54d9 | 5296 | fi |
1be71446 L |
5297 | AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC, |
5298 | [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`], | |
5299 | [Define 0/1 if your linker supports -pie option with copy reloc.]) | |
77ad54d9 | 5300 | AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc) |
24a4dd31 | 5301 | |
22ba88ef EB |
5302 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
5303 | gcc_cv_ld_eh_gc_sections=no | |
5304 | if test $in_tree_ld = yes ; then | |
5305 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5306 | && test $in_tree_ld_is_elf = yes; then | |
5307 | gcc_cv_ld_eh_gc_sections=yes | |
5308 | fi | |
5309 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
5310 | cat > conftest.s <<EOF | |
5311 | .section .text | |
5312 | .globl _start | |
5313 | .type _start, @function | |
5314 | _start: | |
5315 | .long foo | |
5316 | .size _start, .-_start | |
5317 | .section .text.foo,"ax",@progbits | |
5318 | .type foo, @function | |
5319 | foo: | |
5320 | .long 0 | |
5321 | .size foo, .-foo | |
5322 | .section .gcc_except_table.foo,"a",@progbits | |
5323 | .L0: | |
5324 | .long 0 | |
5325 | .section .eh_frame,"a",@progbits | |
5326 | .long .L0 | |
5327 | EOF | |
5328 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5329 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5330 | | grep "gc-sections option ignored" > /dev/null; then | |
5331 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
5332 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5333 | | grep gcc_except_table > /dev/null; then | |
22ba88ef | 5334 | gcc_cv_ld_eh_gc_sections=yes |
e9d207d9 EB |
5335 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
5336 | if test x$gcc_cv_as_comdat_group != xyes; then | |
5337 | gcc_cv_ld_eh_gc_sections=no | |
5338 | cat > conftest.s <<EOF | |
5339 | .section .text | |
5340 | .globl _start | |
5341 | .type _start, @function | |
5342 | _start: | |
5343 | .long foo | |
5344 | .size _start, .-_start | |
5345 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
5346 | .type foo, @function | |
5347 | foo: | |
5348 | .long 0 | |
5349 | .size foo, .-foo | |
5350 | .section .gcc_except_table.foo,"a",@progbits | |
5351 | .L0: | |
5352 | .long 0 | |
5353 | .section .eh_frame,"a",@progbits | |
5354 | .long .L0 | |
5355 | EOF | |
5356 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5357 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5358 | | grep "gc-sections option ignored" > /dev/null; then | |
5359 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
5360 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5361 | | grep gcc_except_table > /dev/null; then | |
e9d207d9 EB |
5362 | gcc_cv_ld_eh_gc_sections=yes |
5363 | fi | |
5364 | fi | |
5365 | fi | |
22ba88ef EB |
5366 | fi |
5367 | fi | |
5368 | rm -f conftest.s conftest.o conftest | |
5369 | fi | |
e9d207d9 EB |
5370 | case "$target" in |
5371 | hppa*-*-linux*) | |
5372 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
5373 | gcc_cv_ld_eh_gc_sections=no | |
5374 | ;; | |
5375 | esac | |
22ba88ef EB |
5376 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
5377 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
5378 | [Define if your linker supports garbage collection of | |
5379 | sections in presence of EH frames.]) | |
5380 | fi | |
5381 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
5382 | ||
1b500976 JJ |
5383 | AC_MSG_CHECKING(linker EH garbage collection of sections bug) |
5384 | gcc_cv_ld_eh_gc_sections_bug=no | |
5385 | if test $in_tree_ld = yes ; then | |
5386 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \ | |
5387 | && test $in_tree_ld_is_elf = yes; then | |
5388 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5389 | fi | |
5390 | elif test x$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 | |
5391 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5392 | cat > conftest.s <<EOF | |
5393 | .section .text | |
5394 | .globl _start | |
5395 | .type _start, @function | |
5396 | _start: | |
5397 | .long foo | |
5398 | .size _start, .-_start | |
5399 | .section .text.startup.foo,"ax",@progbits | |
5400 | .type foo, @function | |
5401 | foo: | |
5402 | .long 0 | |
5403 | .size foo, .-foo | |
5404 | .section .gcc_except_table.foo,"a",@progbits | |
5405 | .L0: | |
5406 | .long 0 | |
5407 | .section .eh_frame,"a",@progbits | |
5408 | .long .L0 | |
5409 | EOF | |
5410 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5411 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5412 | | grep "gc-sections option ignored" > /dev/null; then | |
5413 | : | |
5414 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ | |
5415 | | grep gcc_except_table > /dev/null; then | |
5416 | gcc_cv_ld_eh_gc_sections_bug=no | |
5417 | fi | |
5418 | fi | |
5419 | rm -f conftest.s conftest.o conftest | |
5420 | fi | |
5421 | if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then | |
5422 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1, | |
5423 | [Define if your linker has buggy garbage collection of | |
5424 | sections support when .text.startup.foo like sections are used.]) | |
5425 | fi | |
5426 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug) | |
5427 | ||
29d7cbd1 RO |
5428 | AC_MSG_CHECKING(linker for compressed debug sections) |
5429 | # gold/gld support compressed debug sections since binutils 2.19/2.21 | |
7320a4b5 | 5430 | # In binutils 2.26, gld gained support for the ELF gABI format. |
29d7cbd1 RO |
5431 | if test $in_tree_ld = yes ; then |
5432 | gcc_cv_ld_compress_debug=0 | |
5433 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5434 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then | |
5435 | gcc_cv_ld_compress_debug=2 | |
5436 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
7320a4b5 RO |
5437 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5438 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then | |
5439 | gcc_cv_ld_compress_debug=3 | |
5440 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
5441 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5442 | && test $in_tree_ld_is_elf = yes; then | |
5443 | gcc_cv_ld_compress_debug=1 | |
5444 | fi | |
5445 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
7320a4b5 RO |
5446 | if test "$ld_vers_major" -lt 2 \ |
5447 | || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then | |
5448 | gcc_cv_ld_compress_debug=0 | |
5449 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5450 | gcc_cv_ld_compress_debug=1 | |
5451 | else | |
5452 | gcc_cv_ld_compress_debug=3 | |
5453 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
5454 | fi |
5455 | if test $ld_is_gold = yes; then | |
5456 | gcc_cv_ld_compress_debug=2 | |
5457 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
5458 | fi | |
5459 | else | |
5460 | changequote(,)dnl | |
5461 | case "${target}" in | |
5462 | *-*-solaris2*) | |
5463 | # Introduced in Solaris 11.2. | |
5464 | if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then | |
5465 | gcc_cv_ld_compress_debug=3 | |
5466 | gcc_cv_ld_compress_debug_option="-z compress-sections" | |
5467 | else | |
5468 | gcc_cv_ld_compress_debug=0 | |
5469 | fi | |
5470 | ;; | |
5471 | *) | |
5472 | # Assume linkers other than GNU ld don't support compessed debug | |
5473 | # sections. | |
5474 | gcc_cv_ld_compress_debug=0 | |
5475 | ;; | |
5476 | esac | |
5477 | changequote([,])dnl | |
5478 | fi | |
5479 | AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug, | |
5480 | [Define to the level of your linker's compressed debug section support.]) | |
5481 | AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option", | |
5482 | [Define to the linker option to enable compressed debug sections.]) | |
5483 | AC_MSG_RESULT($gcc_cv_ld_compress_debug) | |
5484 | ||
eb89c82f IS |
5485 | if test x"$ld64_flag" = x"yes"; then |
5486 | ||
5487 | # Set defaults for possibly untestable items. | |
5488 | gcc_cv_ld64_export_dynamic=0 | |
5489 | ||
5490 | if test "$build" = "$host"; then | |
5491 | darwin_try_test=1 | |
5492 | else | |
5493 | darwin_try_test=0 | |
5494 | fi | |
5495 | ||
5496 | # On Darwin, because of FAT library support, it is often possible to execute | |
5497 | # exes from compatible archs even when the host differs from the build system. | |
5498 | case "$build","$host" in | |
5499 | x86_64-*-darwin*,i?86-*-darwin* | powerpc64*-*-darwin*,powerpc*-*-darwin*) | |
5500 | darwin_try_test=1;; | |
5501 | *) ;; | |
5502 | esac | |
5503 | ||
5504 | # If the configurer specified a minimum ld64 version to be supported, then use | |
5505 | # that to determine feature support. | |
5506 | if test x"${gcc_cv_ld64_version}" != x; then | |
c6d01ef8 IS |
5507 | AC_MSG_CHECKING(ld64 specified version) |
5508 | gcc_cv_ld64_major=`echo "$gcc_cv_ld64_version" | sed -e 's/\..*//'` | |
eb89c82f IS |
5509 | AC_MSG_RESULT($gcc_cv_ld64_major) |
5510 | if test "$gcc_cv_ld64_major" -ge 236; then | |
5511 | gcc_cv_ld64_export_dynamic=1 | |
5512 | fi | |
5513 | elif test -x "$gcc_cv_ld" -a "$darwin_try_test" -eq 1; then | |
5514 | # If the version was not specified, try to find it. | |
5515 | AC_MSG_CHECKING(linker version) | |
5516 | if test x"${gcc_cv_ld64_version}" = x; then | |
5517 | gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'` | |
5518 | fi | |
5519 | AC_MSG_RESULT($gcc_cv_ld64_version) | |
5520 | ||
5521 | AC_MSG_CHECKING(linker for -export_dynamic support) | |
5522 | gcc_cv_ld64_export_dynamic=1 | |
5523 | if $gcc_cv_ld -export_dynamic < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
5524 | gcc_cv_ld64_export_dynamic=0 | |
5525 | fi | |
5526 | AC_MSG_RESULT($gcc_cv_ld64_export_dynamic) | |
5527 | fi | |
5528 | ||
5529 | if test x"${gcc_cv_ld64_version}" != x; then | |
5530 | AC_DEFINE_UNQUOTED(LD64_VERSION, "${gcc_cv_ld64_version}", | |
5531 | [Define to ld64 version.]) | |
5532 | fi | |
5533 | ||
5534 | AC_DEFINE_UNQUOTED(LD64_HAS_EXPORT_DYNAMIC, $gcc_cv_ld64_export_dynamic, | |
5535 | [Define to 1 if ld64 supports '-export_dynamic'.]) | |
5536 | fi | |
5537 | ||
630327c3 NN |
5538 | # -------- |
5539 | # UNSORTED | |
5540 | # -------- | |
5541 | ||
82e923f6 RS |
5542 | AC_CACHE_CHECK(linker --as-needed support, |
5543 | gcc_cv_ld_as_needed, | |
5544 | [gcc_cv_ld_as_needed=no | |
e927b6ad RO |
5545 | gcc_cv_ld_as_needed_option='--as-needed' |
5546 | gcc_cv_ld_no_as_needed_option='--no-as-needed' | |
765f1bf9 AM |
5547 | if test $in_tree_ld = yes ; then |
5548 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5549 | && test $in_tree_ld_is_elf = yes; then | |
5550 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
5551 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then |
5552 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5553 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5554 | fi | |
765f1bf9 AM |
5555 | fi |
5556 | elif test x$gcc_cv_ld != x; then | |
8dc877eb RO |
5557 | # Check if linker supports --as-needed and --no-as-needed options |
5558 | if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then | |
5559 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
5560 | if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \ |
5561 | && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \ | |
5562 | && echo "$ld_ver" | grep GNU > /dev/null \ | |
5563 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then | |
5564 | # Use these options only when both ld.bfd and ld.gold support | |
5565 | # --push-state/--pop-state, which unfortunately wasn't added | |
5566 | # at the same time. | |
5567 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5568 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5569 | fi | |
8dc877eb RO |
5570 | fi |
5571 | case "$target:$gnu_ld" in | |
5572 | *-*-solaris2*:no) | |
5573 | # Solaris 2 ld always supports -z ignore/-z record. Prefer the native | |
5574 | # forms. | |
5575 | gcc_cv_ld_as_needed=yes | |
5576 | gcc_cv_ld_as_needed_option="-z ignore" | |
5577 | gcc_cv_ld_no_as_needed_option="-z record" | |
5578 | ;; | |
5579 | esac | |
765f1bf9 | 5580 | fi |
56cf7859 RO |
5581 | # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses |
5582 | # dl_iterate_phdr, i.e. since Solaris 11. | |
5583 | case "$target" in | |
5584 | *-*-solaris2.1[[1-9]]*) | |
5585 | case "$target" in | |
5586 | i?86-*-* | x86_64-*-*) | |
5587 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5588 | # Doesn't work with gld on Solaris/x86 due to PR ld/12320. | |
5589 | gcc_cv_ld_as_needed=no | |
5590 | fi | |
5591 | ;; | |
5592 | esac | |
5593 | ;; | |
5594 | *-*-solaris2*) | |
5595 | gcc_cv_ld_as_needed=no | |
5596 | ;; | |
5597 | esac | |
82e923f6 | 5598 | ]) |
765f1bf9 AM |
5599 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
5600 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
e927b6ad RO |
5601 | [Define if your linker supports --as-needed/--no-as-needed or equivalent options.]) |
5602 | AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option", | |
5603 | [Define to the linker option to ignore unused dependencies.]) | |
5604 | AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option", | |
5605 | [Define to the linker option to keep unused dependencies.]) | |
765f1bf9 | 5606 | fi |
765f1bf9 | 5607 | |
3c698bf0 RO |
5608 | AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) |
5609 | saved_LDFLAGS="$LDFLAGS" | |
5610 | for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do | |
5611 | LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" | |
22e05272 | 5612 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
3c698bf0 RO |
5613 | [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) |
5614 | done | |
5615 | LDFLAGS="$saved_LDFLAGS" | |
5616 | if test "x$gcc_cv_ld_clearcap" = xyes; then | |
5617 | AC_DEFINE([HAVE_LD_CLEARCAP], 1, | |
5618 | [Define if the linker supports clearing hardware capabilities via mapfile.]) | |
5619 | AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map]) | |
5620 | fi | |
5621 | AC_MSG_RESULT($gcc_cv_ld_clearcap) | |
5622 | ||
e9dda04f AM |
5623 | case "$target" in |
5624 | powerpc*-*-*) | |
5625 | case "$target" in | |
5626 | *le-*-linux*) | |
5627 | emul_name="-melf32lppc" | |
5628 | ;; | |
5629 | *) | |
5630 | emul_name="-melf32ppc" | |
5631 | ;; | |
5632 | esac | |
5633 | AC_CACHE_CHECK(linker .gnu.attributes long double support, | |
5634 | gcc_cv_ld_ppc_attr, | |
5635 | [gcc_cv_ld_ppc_attr=no | |
5636 | if test x"$ld_is_gold" = xyes; then | |
5637 | gcc_cv_ld_ppc_attr=yes | |
5638 | elif test $in_tree_ld = yes ; then | |
5639 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
5640 | -a "$gcc_cv_gld_minor_version" -ge 28 \ | |
5641 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
5642 | gcc_cv_ld_ppc_attr=yes | |
5643 | fi | |
5644 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5645 | # check that merging the long double .gnu_attribute doesn't warn | |
5646 | cat > conftest1.s <<EOF | |
5647 | .gnu_attribute 4,1 | |
5648 | EOF | |
5649 | cat > conftest2.s <<EOF | |
5650 | .gnu_attribute 4,9 | |
5651 | EOF | |
5652 | if $gcc_cv_as -a32 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5653 | && $gcc_cv_as -a32 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5654 | && $gcc_cv_ld $emul_name -r -o conftest.o conftest1.o conftest2.o > /dev/null 2> conftest.err \ | |
5655 | && test ! -s conftest.err; then | |
5656 | gcc_cv_ld_ppc_attr=yes | |
5657 | fi | |
5658 | rm -f conftest.err conftest.o conftest1.o conftest2.o conftest1.s conftest2.s | |
5659 | fi | |
5660 | ]) | |
5661 | if test x$gcc_cv_ld_ppc_attr = xyes; then | |
5662 | AC_DEFINE(HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE, 1, | |
5663 | [Define if your PowerPC linker has .gnu.attributes long double support.]) | |
5664 | fi | |
5665 | ;; | |
5666 | esac | |
5667 | ||
d82bf747 | 5668 | case "$target:$tm_file" in |
a26f86dc AT |
5669 | powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) |
5670 | case "$target" in | |
14523c25 AB |
5671 | *le-*-linux*) |
5672 | emul_name="-melf64lppc" | |
5673 | ;; | |
a26f86dc AT |
5674 | *-*-linux*) |
5675 | emul_name="-melf64ppc" | |
5676 | ;; | |
5677 | *-*-freebsd*) | |
5678 | emul_name="-melf64ppc_fbsd" | |
5679 | ;; | |
5680 | esac | |
85b776df AM |
5681 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
5682 | gcc_cv_ld_no_dot_syms, | |
5683 | [gcc_cv_ld_no_dot_syms=no | |
38e1b75f AM |
5684 | if test x"$ld_is_gold" = xyes; then |
5685 | gcc_cv_ld_no_dot_syms=yes | |
5686 | elif test $in_tree_ld = yes ; then | |
85b776df AM |
5687 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then |
5688 | gcc_cv_ld_no_dot_syms=yes | |
5689 | fi | |
5690 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5691 | cat > conftest1.s <<EOF | |
5692 | .text | |
5693 | bl .foo | |
5694 | EOF | |
5695 | cat > conftest2.s <<EOF | |
5696 | .section ".opd","aw" | |
5697 | .align 3 | |
5698 | .globl foo | |
5699 | .type foo,@function | |
5700 | foo: | |
5701 | .quad .LEfoo,.TOC.@tocbase,0 | |
5702 | .text | |
5703 | .LEfoo: | |
5704 | blr | |
5705 | .size foo,.-.LEfoo | |
5706 | EOF | |
5707 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5708 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
a26f86dc | 5709 | && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then |
85b776df AM |
5710 | gcc_cv_ld_no_dot_syms=yes |
5711 | fi | |
5712 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
5713 | fi | |
5714 | ]) | |
5715 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
5716 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
5717 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
5718 | fi | |
070b27da AM |
5719 | |
5720 | AC_CACHE_CHECK(linker large toc support, | |
5721 | gcc_cv_ld_large_toc, | |
5722 | [gcc_cv_ld_large_toc=no | |
38e1b75f AM |
5723 | if test x"$ld_is_gold" = xyes; then |
5724 | gcc_cv_ld_large_toc=yes | |
5725 | elif test $in_tree_ld = yes ; then | |
070b27da AM |
5726 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then |
5727 | gcc_cv_ld_large_toc=yes | |
5728 | fi | |
5729 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5730 | cat > conftest.s <<EOF | |
5731 | .section ".tbss","awT",@nobits | |
5732 | .align 3 | |
5733 | ie0: .space 8 | |
5734 | .global _start | |
5735 | .text | |
5736 | _start: | |
5737 | addis 9,13,ie0@got@tprel@ha | |
5738 | ld 9,ie0@got@tprel@l(9) | |
5739 | EOF | |
5740 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
a26f86dc | 5741 | && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then |
070b27da AM |
5742 | gcc_cv_ld_large_toc=yes |
5743 | fi | |
5744 | rm -f conftest conftest.o conftest.s | |
5745 | fi | |
5746 | ]) | |
5747 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5748 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
5749 | [Define if your PowerPC64 linker supports a large TOC.]) | |
5750 | fi | |
3954ead0 AM |
5751 | |
5752 | AC_CACHE_CHECK(linker toc pointer alignment, | |
5753 | gcc_cv_ld_toc_align, | |
5754 | [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then | |
5755 | cat > conftest.s <<EOF | |
5756 | .global _start | |
5757 | .text | |
5758 | _start: | |
5759 | addis 9,2,x@got@ha | |
5760 | .section .data.rel.ro,"aw",@progbits | |
5761 | .p2align 16 | |
5762 | .space 32768 | |
5763 | x: .quad .TOC. | |
5764 | EOF | |
5765 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
458bc9b1 | 5766 | && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then |
3954ead0 AM |
5767 | gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'` |
5768 | fi | |
5769 | rm -f conftest conftest.o conftest.s | |
5770 | fi | |
5771 | ]) | |
5772 | if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then | |
5773 | AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align, | |
5774 | [Define to .TOC. alignment forced by your linker.]) | |
5775 | fi | |
85b776df AM |
5776 | ;; |
5777 | esac | |
5778 | ||
9e81cc8b DE |
5779 | case "$target" in |
5780 | *-*-aix*) | |
5781 | AC_CACHE_CHECK(linker large toc support, | |
5782 | gcc_cv_ld_large_toc, | |
5783 | [gcc_cv_ld_large_toc=no | |
5784 | if test x$gcc_cv_as != x ; then | |
5785 | cat > conftest.s <<EOF | |
5786 | .toc | |
5787 | LC..1: | |
5788 | .tc a[[TC]],a[[RW]] | |
5789 | .extern a[[RW]] | |
5790 | .csect .text[[PR]] | |
5791 | .largetoctest: | |
5792 | addis 9,LC..1@u(2) | |
5793 | ld 3,LC..1@l(9) | |
5794 | EOF | |
5795 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then | |
5796 | gcc_cv_ld_large_toc=yes | |
5797 | fi | |
5798 | rm -f conftest conftest.o conftest.s | |
5799 | fi | |
5800 | ]) | |
5801 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5802 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
01ae4861 | 5803 | [Define if your PowerPC64 linker supports a large TOC.]) |
9e81cc8b DE |
5804 | fi |
5805 | ;; | |
5806 | esac | |
5807 | ||
cd533689 PP |
5808 | AC_CACHE_CHECK(linker --build-id support, |
5809 | gcc_cv_ld_buildid, | |
5810 | [gcc_cv_ld_buildid=no | |
5811 | if test $in_tree_ld = yes ; then | |
5812 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5813 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
5814 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5815 | && test $in_tree_ld_is_elf = yes; then | |
5816 | gcc_cv_ld_buildid=yes | |
5817 | fi | |
5818 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 5819 | if $gcc_cv_ld --help 2>&1 | grep build-id > /dev/null; then |
cd533689 PP |
5820 | gcc_cv_ld_buildid=yes |
5821 | fi | |
5822 | fi]) | |
5823 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5824 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
5825 | [Define if your linker supports --build-id.]) | |
5826 | fi | |
5827 | ||
5828 | AC_ARG_ENABLE(linker-build-id, | |
b88ecf55 AS |
5829 | [AS_HELP_STRING([--enable-linker-build-id], |
5830 | [compiler will always pass --build-id to linker])], | |
cd533689 PP |
5831 | [], |
5832 | enable_linker_build_id=no) | |
5833 | ||
5834 | if test x"$enable_linker_build_id" = xyes; then | |
5835 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5836 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
5837 | [Define if gcc should always pass --build-id to linker.]) | |
5838 | else | |
5839 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
5840 | fi | |
5841 | fi | |
5842 | ||
a6198222 RO |
5843 | # In binutils 2.21, GNU ld gained support for new emulations fully |
5844 | # supporting the Solaris 2 ABI. Detect their presence in the linker used. | |
5845 | AC_CACHE_CHECK(linker *_sol2 emulation support, | |
5846 | gcc_cv_ld_sol2_emulation, | |
5847 | [gcc_cv_ld_sol2_emulation=no | |
5848 | if test $in_tree_ld = yes ; then | |
5849 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5850 | "$gcc_cv_gld_minor_version" -ge 21 -o \ | |
5851 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5852 | && test $in_tree_ld_is_elf = yes; then | |
5853 | gcc_cv_ld_sol2_emulation=yes | |
5854 | fi | |
5855 | elif test x$gcc_cv_ld != x; then | |
5856 | if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \ | |
5857 | grep _sol2 > /dev/null; then | |
5858 | gcc_cv_ld_sol2_emulation=yes | |
5859 | fi | |
5860 | fi]) | |
5861 | if test x"$gcc_cv_ld_sol2_emulation" = xyes; then | |
5862 | AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1, | |
5863 | [Define if your linker supports the *_sol2 emulations.]) | |
5864 | fi | |
5865 | ||
380e5ca4 MM |
5866 | AC_CACHE_CHECK(linker --sysroot support, |
5867 | gcc_cv_ld_sysroot, | |
5868 | [gcc_cv_ld_sysroot=no | |
5869 | if test $in_tree_ld = yes ; then | |
5870 | if test "$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 | 5871 | gcc_cv_ld_sysroot=yes |
380e5ca4 MM |
5872 | fi |
5873 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 5874 | if $gcc_cv_ld --help 2>&1 | grep sysroot > /dev/null; then |
380e5ca4 MM |
5875 | gcc_cv_ld_sysroot=yes |
5876 | fi | |
5877 | fi]) | |
5878 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
5879 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
5880 | [Define if your linker supports --sysroot.]) | |
5881 | fi | |
5882 | ||
2d110442 RO |
5883 | case $target in |
5884 | *-*-solaris2*) | |
5885 | # Check for system-provided CRTs on Solaris 11.x and Solaris 12. | |
5886 | AC_CACHE_CHECK([system-provided CRTs on Solaris], | |
5887 | gcc_cv_solaris_crts, | |
5888 | [gcc_cv_solaris_crts=no | |
5889 | if test x$host != x$target; then | |
5890 | if test "x$with_sysroot" = xyes; then | |
5891 | target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root" | |
5892 | else | |
5893 | target_sysroot="${with_sysroot}" | |
5894 | fi | |
5895 | fi | |
5896 | target_libdir="$target_sysroot/usr/lib" | |
5897 | # At the time they were added, gcrt1.o became a symlink for backwards | |
5898 | # compatibility on x86, while crt1.o was added on sparc, so check for that. | |
5899 | case $target in | |
5900 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
5901 | if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5902 | ;; | |
5903 | sparc*-*-solaris2*) | |
5904 | if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5905 | ;; | |
5906 | esac]) | |
5907 | ;; | |
5908 | esac | |
5909 | if test x$gcc_cv_solaris_crts = xyes; then | |
5910 | AC_DEFINE(HAVE_SOLARIS_CRTS, 1, | |
5911 | [Define if the system-provided CRTs are present on Solaris.]) | |
5912 | fi | |
5913 | ||
78fd4c51 SL |
5914 | AC_ARG_ENABLE(libssp, |
5915 | [AS_HELP_STRING([--enable-libssp], [enable linking against libssp])], | |
5916 | [case "${enableval}" in | |
5917 | yes|no) | |
5918 | ;; | |
5919 | *) | |
5920 | AC_MSG_ERROR([unknown libssp setting $enableval]) | |
5921 | ;; | |
5922 | esac], []) | |
5923 | ||
77008252 | 5924 | # Test for stack protector support in target C library. |
a6ccdbab | 5925 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
78fd4c51 SL |
5926 | gcc_cv_libc_provides_ssp, |
5927 | [gcc_cv_libc_provides_ssp=no | |
5928 | if test "x$enable_libssp" = "xno"; then | |
5929 | gcc_cv_libc_provides_ssp=yes | |
5930 | elif test "x$enable_libssp" = "xyes"; then | |
5931 | gcc_cv_libc_provides_ssp=no | |
5932 | else | |
a6ccdbab | 5933 | case "$target" in |
755658a5 GR |
5934 | *-*-musl*) |
5935 | # All versions of musl provide stack protector | |
5936 | gcc_cv_libc_provides_ssp=yes;; | |
8466af06 | 5937 | *-*-linux* | *-*-kfreebsd*-gnu) |
75a2bcc0 | 5938 | # glibc 2.4 and later provides __stack_chk_fail and |
77008252 | 5939 | # either __stack_chk_guard, or TLS access to stack guard canary. |
75a2bcc0 JM |
5940 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [ |
5941 | [if test -f $target_header_dir/features.h \ | |
1a242e3c | 5942 | && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ |
6961669f | 5943 | $target_header_dir/features.h > /dev/null; then |
75a2bcc0 | 5944 | if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
6961669f RO |
5945 | $target_header_dir/features.h > /dev/null && \ |
5946 | test -f $target_header_dir/bits/uClibc_config.h && \ | |
1a242e3c | 5947 | $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ |
6961669f | 5948 | $target_header_dir/bits/uClibc_config.h > /dev/null; then |
fed6d628 | 5949 | gcc_cv_libc_provides_ssp=yes |
77008252 | 5950 | fi |
40295cc7 IZ |
5951 | # all versions of Bionic support stack protector |
5952 | elif test -f $target_header_dir/sys/cdefs.h \ | |
5953 | && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \ | |
5954 | $target_header_dir/sys/cdefs.h > /dev/null; then | |
5955 | gcc_cv_libc_provides_ssp=yes | |
75a2bcc0 | 5956 | fi]]) |
a6ccdbab | 5957 | ;; |
4cc115a2 TS |
5958 | *-*-gnu*) |
5959 | # Avoid complicated tests (see | |
5960 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
5961 | # simply assert that glibc does provide this, which is true for all | |
5962 | # realistically usable GNU/Hurd configurations. | |
755658a5 | 5963 | # All supported versions of musl provide it as well |
4cc115a2 | 5964 | gcc_cv_libc_provides_ssp=yes;; |
388dc9e6 | 5965 | *-*-darwin* | *-*-freebsd* | *-*-netbsd*) |
a6ccdbab EC |
5966 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
5967 | [echo "no __stack_chk_fail on this target"]) | |
5968 | ;; | |
78fd4c51 SL |
5969 | *) gcc_cv_libc_provides_ssp=no ;; |
5970 | esac | |
5971 | fi]) | |
a6ccdbab | 5972 | |
77008252 JJ |
5973 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
5974 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
5975 | [Define if your target C library provides stack protector support]) | |
5976 | fi | |
5977 | ||
e0f6cba0 MG |
5978 | # Check whether --enable-default-ssp was given. |
5979 | AC_ARG_ENABLE(default-ssp, | |
5980 | [AS_HELP_STRING([--enable-default-ssp], | |
5981 | [enable Stack Smashing Protection as default])],[ | |
5982 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
5983 | case "$target" in | |
5984 | ia64*-*-*) enable_default_ssp=no ;; | |
5985 | *) enable_default_ssp=$enableval ;; | |
5986 | esac | |
5987 | else | |
5988 | enable_default_ssp=no | |
5989 | fi], | |
5990 | enable_default_ssp=no) | |
9a557138 | 5991 | if test x$enable_default_ssp = xyes ; then |
e0f6cba0 MG |
5992 | AC_DEFINE(ENABLE_DEFAULT_SSP, 1, |
5993 | [Define if your target supports default stack protector and it is enabled.]) | |
5994 | fi | |
5995 | AC_SUBST([enable_default_ssp]) | |
5996 | ||
f4e749b4 TT |
5997 | # Test for <sys/sdt.h> on the target. |
5998 | GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) | |
5999 | AC_MSG_CHECKING(sys/sdt.h in the target C library) | |
6000 | have_sys_sdt_h=no | |
6001 | if test -f $target_header_dir/sys/sdt.h; then | |
d11aaed7 | 6002 | have_sys_sdt_h=yes |
f4e749b4 TT |
6003 | AC_DEFINE(HAVE_SYS_SDT_H, 1, |
6004 | [Define if your target C library provides sys/sdt.h]) | |
6005 | fi | |
6006 | AC_MSG_RESULT($have_sys_sdt_h) | |
6007 | ||
ed965309 JJ |
6008 | # Check if TFmode long double should be used by default or not. |
6009 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
6010 | # and later they can use TFmode. | |
6011 | case "$target" in | |
f7cc5390 | 6012 | powerpc*-*-linux* | \ |
ed965309 JJ |
6013 | sparc*-*-linux* | \ |
6014 | s390*-*-linux* | \ | |
6015 | alpha*-*-linux*) | |
6016 | AC_ARG_WITH(long-double-128, | |
b88ecf55 AS |
6017 | [AS_HELP_STRING([--with-long-double-128], |
6018 | [use 128-bit long double by default])], | |
ed965309 | 6019 | gcc_cv_target_ldbl128="$with_long_double_128", |
75a2bcc0 JM |
6020 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [ |
6021 | [gcc_cv_target_ldbl128=no | |
ed965309 | 6022 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
6961669f | 6023 | $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \ |
65280f6c | 6024 | && gcc_cv_target_ldbl128=yes |
75a2bcc0 | 6025 | ]])]) |
ed965309 JJ |
6026 | ;; |
6027 | esac | |
6028 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
6029 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
6030 | [Define if TFmode long double should be the default]) | |
6031 | fi | |
6032 | ||
8c7a27d5 MM |
6033 | # Check if TFmode long double target should use the IBM extended double or IEEE |
6034 | # 128-bit floating point formats if long doubles are 128-bits long. The long | |
6035 | # double type can only be switched on powerpc64 bit Linux systems where VSX is | |
6036 | # supported. Other PowerPC systems do not build the IEEE 128-bit emulator in | |
6037 | # libgcc. | |
6038 | AC_ARG_WITH([long-double-format], | |
6039 | [AS_HELP_STRING([--with-long-double-format={ieee,ibm}] | |
6040 | [Specify whether PowerPC long double uses IEEE or IBM format])],[ | |
6041 | case "$target:$with_long_double_format" in | |
6042 | powerpc64le-*-linux*:ieee | powerpc64le-*-linux*:ibm) | |
6043 | : | |
6044 | ;; | |
6045 | powerpc64-*-linux*:ieee | powerpc64-*-linux*:ibm) | |
6046 | # IEEE 128-bit emulation is only built on 64-bit VSX Linux systems | |
6047 | case "$with_cpu" in | |
6048 | power7 | power8 | power9 | power1*) | |
6049 | : | |
6050 | ;; | |
6051 | *) | |
6052 | AC_MSG_ERROR([Configuration option --with-long-double-format is only \ | |
6053 | supported if the default cpu is power7 or newer]) | |
6054 | with_long_double_format="" | |
6055 | ;; | |
6056 | esac | |
6057 | ;; | |
6058 | xpowerpc64*-*-linux*:*) | |
6059 | AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee]) | |
6060 | with_long_double_format="" | |
6061 | ;; | |
6062 | *) | |
6063 | AC_MSG_ERROR([Configure option --with-long-double-format is only supported \ | |
6064 | on 64-bit PowerPC VSX Linux systems]) | |
6065 | with_long_double_format="" | |
6066 | ;; | |
6067 | esac], | |
6068 | []) | |
6069 | ||
26a2e6ae PB |
6070 | # Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP |
6071 | # values in the TCB. Currently, only GLIBC 2.23 and later support this. | |
6072 | gcc_cv_libc_provides_hwcap_in_tcb=no | |
6073 | case "$target" in | |
6074 | powerpc*-*-linux*) | |
6075 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], ) | |
6076 | ;; | |
6077 | esac | |
6078 | if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then | |
6079 | AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1, | |
6080 | [Define if your target C Library provides the AT_HWCAP value in the TCB]) | |
6081 | fi | |
6082 | ||
6961669f RO |
6083 | AC_MSG_CHECKING(dl_iterate_phdr in target C library) |
6084 | gcc_cv_target_dl_iterate_phdr=unknown | |
6085 | case "$target" in | |
ccd1242e | 6086 | *-*-solaris2*) |
6961669f RO |
6087 | # <link.h> needs both a dl_iterate_phdr declaration and support for |
6088 | # compilation with largefile support. | |
6089 | if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \ | |
6090 | && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then | |
6091 | gcc_cv_target_dl_iterate_phdr=yes | |
6092 | else | |
6093 | gcc_cv_target_dl_iterate_phdr=no | |
6094 | fi | |
6095 | ;; | |
dbed5a9b JM |
6096 | *-*-dragonfly* | *-*-freebsd*) |
6097 | if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then | |
6098 | gcc_cv_target_dl_iterate_phdr=yes | |
6099 | else | |
6100 | gcc_cv_target_dl_iterate_phdr=no | |
6101 | fi | |
6102 | ;; | |
755658a5 GR |
6103 | *-linux-musl*) |
6104 | gcc_cv_target_dl_iterate_phdr=yes | |
6105 | ;; | |
6961669f RO |
6106 | esac |
6107 | GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR]) | |
6108 | if test x$gcc_cv_target_dl_iterate_phdr = xyes; then | |
6109 | AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1, | |
6110 | [Define if your target C library provides the `dl_iterate_phdr' function.]) | |
6111 | fi | |
6112 | AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr) | |
6113 | ||
cd030c07 DN |
6114 | # We no longer support different GC mechanisms. Emit an error if |
6115 | # the user configures with --with-gc. | |
81bf3d9e | 6116 | AC_ARG_WITH(gc, |
b88ecf55 | 6117 | [AS_HELP_STRING([--with-gc={page,zone}], |
cd030c07 DN |
6118 | [this option is not supported anymore. It used to choose |
6119 | the garbage collection mechanism to use with the compiler])], | |
6120 | [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])], | |
6121 | []) | |
81bf3d9e | 6122 | |
00020c16 ILT |
6123 | # Libraries to use on the host. This will normally be set by the top |
6124 | # level Makefile. Here we simply capture the value for our Makefile. | |
6125 | if test -z "${HOST_LIBS+set}"; then | |
6126 | HOST_LIBS= | |
6127 | fi | |
6128 | AC_SUBST(HOST_LIBS) | |
6129 | ||
3c809ba4 | 6130 | # Use the system's zlib library. |
96a58590 | 6131 | AM_ZLIB |
3c809ba4 | 6132 | |
dc6746e7 PT |
6133 | dnl Very limited version of automake's enable-maintainer-mode |
6134 | ||
6135 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
6136 | dnl maintainer-mode is disabled by default | |
6137 | AC_ARG_ENABLE(maintainer-mode, | |
b88ecf55 AS |
6138 | [AS_HELP_STRING([--enable-maintainer-mode], |
6139 | [enable make rules and dependencies not useful | |
6140 | (and sometimes confusing) to the casual installer])], | |
dc6746e7 PT |
6141 | maintainer_mode=$enableval, |
6142 | maintainer_mode=no) | |
6143 | ||
6144 | AC_MSG_RESULT($maintainer_mode) | |
6145 | ||
6146 | if test "$maintainer_mode" = "yes"; then | |
6147 | MAINT='' | |
6148 | else | |
6149 | MAINT='#' | |
6150 | fi | |
6151 | AC_SUBST(MAINT)dnl | |
6152 | ||
427b248d JM |
6153 | dnl Whether to prevent multiple front-ends from linking at the same time |
6154 | ||
6155 | AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once]) | |
6156 | AC_ARG_ENABLE(link-mutex, | |
6157 | [AS_HELP_STRING([--enable-link-mutex], | |
6158 | [avoid linking multiple front-ends at once to avoid thrashing | |
6159 | on the build machine])], | |
6160 | do_link_mutex=$enableval, | |
6161 | do_link_mutex=no) | |
6162 | AC_MSG_RESULT($do_link_mutex) | |
6163 | ||
6164 | if test "$do_link_mutex" = "yes"; then | |
6165 | DO_LINK_MUTEX=true | |
6166 | else | |
6167 | DO_LINK_MUTEX=false | |
6168 | fi | |
6169 | AC_SUBST(DO_LINK_MUTEX) | |
6170 | ||
630327c3 NN |
6171 | # -------------- |
6172 | # Language hooks | |
6173 | # -------------- | |
6174 | ||
571a8de5 DE |
6175 | # Make empty files to contain the specs and options for each language. |
6176 | # Then add #include lines to for a compiler that has specs and/or options. | |
6177 | ||
cc11cc9b | 6178 | subdirs= |
d7b42618 | 6179 | lang_opt_files= |
571a8de5 | 6180 | lang_specs_files= |
3103b7db | 6181 | lang_tree_files= |
571a8de5 DE |
6182 | # These (without "all_") are set in each config-lang.in. |
6183 | # `language' must be a single word so is spelled singularly. | |
6184 | all_languages= | |
571a8de5 | 6185 | all_compilers= |
fda9c731 | 6186 | all_outputs='Makefile' |
571a8de5 | 6187 | # List of language makefile fragments. |
2ed26f6b | 6188 | all_lang_makefrags= |
11a67599 | 6189 | # Additional files for gengtype |
ef69da62 | 6190 | all_gtfiles="$target_gtfiles" |
571a8de5 | 6191 | |
cc11cc9b PB |
6192 | # These are the languages that are set in --enable-languages, |
6193 | # and are available in the GCC tree. | |
6194 | all_selected_languages= | |
6195 | ||
571a8de5 DE |
6196 | # Add the language fragments. |
6197 | # Languages are added via two mechanisms. Some information must be | |
6198 | # recorded in makefile variables, these are defined in config-lang.in. | |
6199 | # We accumulate them and plug them into the main Makefile. | |
6200 | # The other mechanism is a set of hooks for each of the main targets | |
6201 | # like `clean', `install', etc. | |
6202 | ||
571a8de5 DE |
6203 | language_hooks="Make-hooks" |
6204 | ||
cc11cc9b | 6205 | for lang in ${srcdir}/*/config-lang.in |
571a8de5 | 6206 | do |
cc11cc9b | 6207 | changequote(,)dnl |
1546bb64 PB |
6208 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
6209 | ||
cc11cc9b PB |
6210 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
6211 | if test "x$lang_alias" = x | |
6212 | then | |
6213 | echo "$lang doesn't set \$language." 1>&2 | |
6214 | exit 1 | |
6215 | fi | |
6216 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
6217 | subdirs="$subdirs $subdir" | |
349c3166 OH |
6218 | |
6219 | # $gcc_subdir is where the gcc integration files are to be found | |
6220 | # for a language, both for internal compiler purposes (compiler | |
6221 | # sources implementing front-end to GCC tree converters), and for | |
6222 | # build infrastructure purposes (Make-lang.in, etc.) | |
6223 | # | |
6224 | # This will be <subdir> (relative to $srcdir) if a line like | |
6225 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
6226 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
6227 | # otherwise. | |
6228 | # | |
6229 | # Except for the language alias (fetched above), the regular | |
6230 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
6231 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
6232 | # only this and the language alias. | |
6233 | ||
6234 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
6235 | if [ "$gcc_subdir" = "" ]; then | |
6236 | gcc_subdir="$subdir" | |
6237 | fi | |
6238 | ||
cc11cc9b PB |
6239 | case ",$enable_languages," in |
6240 | *,$lang_alias,*) | |
6241 | all_selected_languages="$all_selected_languages $lang_alias" | |
349c3166 OH |
6242 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
6243 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
cc11cc9b PB |
6244 | fi |
6245 | ;; | |
6246 | esac | |
6247 | changequote([,])dnl | |
6248 | ||
cc11cc9b PB |
6249 | language= |
6250 | boot_language= | |
6251 | compilers= | |
cc11cc9b PB |
6252 | outputs= |
6253 | gtfiles= | |
1546bb64 | 6254 | subdir_requires= |
349c3166 | 6255 | . ${srcdir}/$gcc_subdir/config-lang.in |
cc11cc9b PB |
6256 | if test "x$language" = x |
6257 | then | |
349c3166 | 6258 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
cc11cc9b PB |
6259 | exit 1 |
6260 | fi | |
1546bb64 PB |
6261 | |
6262 | ok=: | |
6263 | case ",$enable_languages," in | |
6264 | *,$lang_alias,*) ;; | |
6265 | *) | |
6266 | for i in $subdir_requires; do | |
b6348cb3 | 6267 | test -f "${srcdir}/$i/config-lang.in" && continue |
1546bb64 PB |
6268 | ok=false |
6269 | break | |
6270 | done | |
6271 | ;; | |
6272 | esac | |
6273 | $ok || continue | |
6274 | ||
349c3166 OH |
6275 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
6276 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
6277 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
fd438373 | 6278 | all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt" |
1546bb64 | 6279 | fi |
349c3166 OH |
6280 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
6281 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
1546bb64 | 6282 | fi |
cc11cc9b | 6283 | all_languages="$all_languages $language" |
cc11cc9b | 6284 | all_compilers="$all_compilers $compilers" |
cc11cc9b | 6285 | all_outputs="$all_outputs $outputs" |
11a67599 | 6286 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
d7f09764 DN |
6287 | case ",$enable_languages," in |
6288 | *,lto,*) | |
6289 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
6290 | enable_lto=yes | |
6291 | AC_SUBST(enable_lto) | |
6292 | ;; | |
6293 | *) ;; | |
6294 | esac | |
571a8de5 DE |
6295 | done |
6296 | ||
cbc59f01 | 6297 | check_languages= |
cc11cc9b | 6298 | for language in $all_selected_languages |
cbc59f01 | 6299 | do |
cc11cc9b | 6300 | check_languages="$check_languages check-$language" |
cbc59f01 DD |
6301 | done |
6302 | ||
033eb567 DM |
6303 | selftest_languages= |
6304 | for language in $all_selected_languages | |
6305 | do | |
6306 | selftest_languages="$selftest_languages selftest-$language" | |
6307 | done | |
6308 | ||
62b81e45 | 6309 | # We link each language in with a set of hooks, reached indirectly via |
cc11cc9b | 6310 | # lang.${target}. Only do so for selected languages. |
571a8de5 DE |
6311 | |
6312 | rm -f Make-hooks | |
6313 | touch Make-hooks | |
bd97af06 | 6314 | target_list="all.cross start.encap rest.encap tags \ |
55bcd32b AJ |
6315 | install-common install-man install-info install-pdf install-html dvi \ |
6316 | pdf html uninstall info man srcextra srcman srcinfo \ | |
2a4c0366 | 6317 | mostlyclean clean distclean maintainer-clean install-plugin" |
cc11cc9b | 6318 | |
571a8de5 DE |
6319 | for t in $target_list |
6320 | do | |
6321 | x= | |
cc11cc9b | 6322 | for lang in $all_selected_languages |
571a8de5 | 6323 | do |
cc11cc9b | 6324 | x="$x $lang.$t" |
571a8de5 DE |
6325 | done |
6326 | echo "lang.$t: $x" >> Make-hooks | |
6327 | done | |
6328 | ||
fd438373 MM |
6329 | # -------- |
6330 | # Option include files | |
6331 | # -------- | |
6332 | ||
6333 | ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk | |
6334 | option_includes="option-includes.mk" | |
6335 | AC_SUBST_FILE(option_includes) | |
6336 | ||
630327c3 NN |
6337 | # -------- |
6338 | # UNSORTED | |
6339 | # -------- | |
6340 | ||
cc06d68c | 6341 | # Create .gdbinit. |
296e46bd | 6342 | |
cc06d68c GP |
6343 | echo "dir ." > .gdbinit |
6344 | echo "dir ${srcdir}" >> .gdbinit | |
6345 | if test x$gdb_needs_out_file_path = xyes | |
6346 | then | |
6347 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
6348 | fi | |
6349 | if test "x$subdirs" != x; then | |
6350 | for s in $subdirs | |
6351 | do | |
6352 | echo "dir ${srcdir}/$s" >> .gdbinit | |
6353 | done | |
296e46bd | 6354 | fi |
cc06d68c | 6355 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
8dce4dbc | 6356 | echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit |
296e46bd | 6357 | |
3bd7b086 L |
6358 | # Put a breakpoint on __asan_report_error to help with debugging buffer |
6359 | # overflow. | |
6360 | case "$CFLAGS" in | |
6361 | *-fsanitize=address*) | |
6362 | echo "source ${srcdir}/gdbasan.in" >> .gdbinit | |
6363 | ;; | |
6364 | esac | |
6365 | ||
15c723f3 | 6366 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
d062c304 | 6367 | AC_SUBST(gcc_tooldir) |
4c112cda | 6368 | AC_SUBST(dollar) |
d062c304 | 6369 | |
2bbea3a6 RH |
6370 | # Find a directory in which to install a shared libgcc. |
6371 | ||
6372 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
b88ecf55 AS |
6373 | [AS_HELP_STRING([--enable-version-specific-runtime-libs], |
6374 | [specify that runtime libraries should be | |
6375 | installed in a compiler-specific directory])]) | |
2bbea3a6 | 6376 | |
46f18e7b RK |
6377 | # Substitute configuration variables |
6378 | AC_SUBST(subdirs) | |
8ac9d31f | 6379 | AC_SUBST(srcdir) |
46f18e7b | 6380 | AC_SUBST(all_compilers) |
e2500fed | 6381 | AC_SUBST(all_gtfiles) |
2ed26f6b | 6382 | AC_SUBST(all_lang_makefrags) |
9f3d1bc2 | 6383 | AC_SUBST(all_languages) |
cc11cc9b | 6384 | AC_SUBST(all_selected_languages) |
9f3d1bc2 BK |
6385 | AC_SUBST(build_exeext) |
6386 | AC_SUBST(build_install_headers_dir) | |
6387 | AC_SUBST(build_xm_file_list) | |
e22340b0 | 6388 | AC_SUBST(build_xm_include_list) |
11642c3a | 6389 | AC_SUBST(build_xm_defines) |
a0e527e3 | 6390 | AC_SUBST(build_file_translate) |
cbc59f01 | 6391 | AC_SUBST(check_languages) |
033eb567 | 6392 | AC_SUBST(selftest_languages) |
9f3d1bc2 | 6393 | AC_SUBST(cpp_install_dir) |
2ed26f6b ZW |
6394 | AC_SUBST(xmake_file) |
6395 | AC_SUBST(tmake_file) | |
aca600aa AS |
6396 | AC_SUBST(TM_ENDIAN_CONFIG) |
6397 | AC_SUBST(TM_MULTILIB_CONFIG) | |
6398 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
30500d84 | 6399 | AC_SUBST(extra_gcc_objs) |
9b91e436 KT |
6400 | AC_SUBST(user_headers_inc_next_pre) |
6401 | AC_SUBST(user_headers_inc_next_post) | |
9f3d1bc2 | 6402 | AC_SUBST(extra_headers_list) |
46f18e7b | 6403 | AC_SUBST(extra_objs) |
9f3d1bc2 | 6404 | AC_SUBST(extra_programs) |
9f3d1bc2 | 6405 | AC_SUBST(float_h_file) |
cc1e60ea | 6406 | AC_SUBST(gcc_config_arguments) |
9f3d1bc2 | 6407 | AC_SUBST(gcc_gxx_include_dir) |
17719d09 | 6408 | AC_SUBST(gcc_gxx_include_dir_add_sysroot) |
9f3d1bc2 | 6409 | AC_SUBST(host_exeext) |
46f18e7b | 6410 | AC_SUBST(host_xm_file_list) |
e22340b0 | 6411 | AC_SUBST(host_xm_include_list) |
11642c3a | 6412 | AC_SUBST(host_xm_defines) |
476d9098 | 6413 | AC_SUBST(out_host_hook_obj) |
9f3d1bc2 | 6414 | AC_SUBST(install) |
d7b42618 | 6415 | AC_SUBST(lang_opt_files) |
9f3d1bc2 | 6416 | AC_SUBST(lang_specs_files) |
3103b7db | 6417 | AC_SUBST(lang_tree_files) |
46f18e7b | 6418 | AC_SUBST(local_prefix) |
9f3d1bc2 BK |
6419 | AC_SUBST(md_file) |
6420 | AC_SUBST(objc_boehm_gc) | |
6421 | AC_SUBST(out_file) | |
6422 | AC_SUBST(out_object_file) | |
c49a6962 JM |
6423 | AC_SUBST(common_out_file) |
6424 | AC_SUBST(common_out_object_file) | |
9f3d1bc2 | 6425 | AC_SUBST(tm_file_list) |
e22340b0 | 6426 | AC_SUBST(tm_include_list) |
d5355cb2 | 6427 | AC_SUBST(tm_defines) |
11642c3a | 6428 | AC_SUBST(tm_p_file_list) |
e22340b0 | 6429 | AC_SUBST(tm_p_include_list) |
b4c522fa IB |
6430 | AC_SUBST(tm_d_file_list) |
6431 | AC_SUBST(tm_d_include_list) | |
e22340b0 ZW |
6432 | AC_SUBST(xm_file_list) |
6433 | AC_SUBST(xm_include_list) | |
3d9d2476 | 6434 | AC_SUBST(xm_defines) |
207bf79d | 6435 | AC_SUBST(use_gcc_stdint) |
aac69a49 NC |
6436 | AC_SUBST(c_target_objs) |
6437 | AC_SUBST(cxx_target_objs) | |
c776a6d0 | 6438 | AC_SUBST(fortran_target_objs) |
b4c522fa | 6439 | AC_SUBST(d_target_objs) |
11642c3a | 6440 | AC_SUBST(target_cpu_default) |
46f18e7b | 6441 | |
46f18e7b RK |
6442 | AC_SUBST_FILE(language_hooks) |
6443 | ||
7903cebc NN |
6444 | # Echo link setup. |
6445 | if test x${build} = x${host} ; then | |
6446 | if test x${host} = x${target} ; then | |
6447 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
6448 | else | |
6449 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
6450 | echo " from ${host} to ${target}." 1>&2 | |
6451 | fi | |
46f18e7b | 6452 | else |
7903cebc NN |
6453 | if test x${host} = x${target} ; then |
6454 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
6455 | echo " for ${target}." 1>&2 | |
6456 | else | |
6457 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
6458 | echo " from ${host} to ${target}." 1>&2 | |
6459 | fi | |
46f18e7b RK |
6460 | fi |
6461 | ||
6de9cd9a DN |
6462 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
6463 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
6464 | ||
e357a5e0 SP |
6465 | AC_ARG_VAR(ISLLIBS,[How to link isl]) |
6466 | AC_ARG_VAR(ISLINC,[How to find isl include files]) | |
eae1a5d4 RG |
6467 | if test "x${ISLLIBS}" != "x" ; then |
6468 | AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.]) | |
6469 | fi | |
f8bf9252 | 6470 | |
ddc8de03 | 6471 | GCC_ENABLE_PLUGINS |
68a607d8 DN |
6472 | AC_SUBST(pluginlibs) |
6473 | AC_SUBST(enable_plugin) | |
6474 | if test x"$enable_plugin" = x"yes"; then | |
6475 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
6476 | fi | |
6477 | ||
87e6d9dc | 6478 | |
459260ec DM |
6479 | # Enable --enable-host-shared |
6480 | AC_ARG_ENABLE(host-shared, | |
6481 | [AS_HELP_STRING([--enable-host-shared], | |
6482 | [build host code as shared libraries])], | |
6483 | [PICFLAG=-fPIC], [PICFLAG=]) | |
6484 | AC_SUBST(enable_host_shared) | |
6485 | AC_SUBST(PICFLAG) | |
6486 | ||
6487 | ||
87e6d9dc TB |
6488 | AC_ARG_ENABLE(libquadmath-support, |
6489 | [AS_HELP_STRING([--disable-libquadmath-support], | |
6490 | [disable libquadmath support for Fortran])], | |
6491 | ENABLE_LIBQUADMATH_SUPPORT=$enableval, | |
6492 | ENABLE_LIBQUADMATH_SUPPORT=yes) | |
6493 | if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then | |
6494 | AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1, | |
6495 | [Define to 1 to enable libquadmath support]) | |
6496 | fi | |
6497 | ||
6498 | ||
79bec923 ST |
6499 | # Specify what hash style to use by default. |
6500 | AC_ARG_WITH([linker-hash-style], | |
6501 | [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}], | |
6502 | [specify the linker hash style])], | |
6503 | [case x"$withval" in | |
6504 | xsysv) | |
6505 | LINKER_HASH_STYLE=sysv | |
6506 | ;; | |
6507 | xgnu) | |
6508 | LINKER_HASH_STYLE=gnu | |
6509 | ;; | |
6510 | xboth) | |
6511 | LINKER_HASH_STYLE=both | |
6512 | ;; | |
6513 | *) | |
6514 | AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style]) | |
6515 | ;; | |
6516 | esac], | |
6517 | [LINKER_HASH_STYLE='']) | |
6518 | if test x"${LINKER_HASH_STYLE}" != x; then | |
6519 | AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE", | |
6520 | [The linker hash style]) | |
6521 | fi | |
6522 | ||
899c78ae JJ |
6523 | # Specify what should be the default of -fdiagnostics-color option. |
6524 | AC_ARG_WITH([diagnostics-color], | |
6525 | [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}], | |
6526 | [specify the default of -fdiagnostics-color option | |
6527 | auto-if-env stands for -fdiagnostics-color=auto if | |
6528 | GCC_COLOR environment variable is present and | |
6529 | -fdiagnostics-color=never otherwise])], | |
6530 | [case x"$withval" in | |
6531 | xnever) | |
6532 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO | |
6533 | ;; | |
6534 | xauto) | |
6535 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO | |
6536 | ;; | |
6537 | xauto-if-env) | |
6538 | DIAGNOSTICS_COLOR_DEFAULT=-1 | |
6539 | ;; | |
6540 | xalways) | |
6541 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES | |
6542 | ;; | |
6543 | *) | |
6544 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color]) | |
6545 | ;; | |
6546 | esac], | |
6547 | [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO]) | |
6548 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT, | |
6549 | [The default for -fdiagnostics-color option]) | |
6550 | ||
35485da9 DM |
6551 | # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit |
6552 | # of jit/jit-playback.c. | |
001ddaa8 DM |
6553 | gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"` |
6554 | echo "gcc_driver_version: ${gcc_driver_version}" | |
35485da9 | 6555 | cat > gcc-driver-name.h <<EOF |
001ddaa8 | 6556 | #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}" |
35485da9 DM |
6557 | EOF |
6558 | ||
428b3812 L |
6559 | # Check whether --enable-default-pie was given. |
6560 | AC_ARG_ENABLE(default-pie, | |
6561 | [AS_HELP_STRING([--enable-default-pie], | |
6562 | [enable Position Independent Executable as default])], | |
6563 | enable_default_pie=$enableval, | |
6564 | enable_default_pie=no) | |
9a557138 | 6565 | if test x$enable_default_pie = xyes ; then |
428b3812 L |
6566 | AC_DEFINE(ENABLE_DEFAULT_PIE, 1, |
6567 | [Define if your target supports default PIE and it is enabled.]) | |
6568 | fi | |
6569 | AC_SUBST([enable_default_pie]) | |
6570 | ||
6571 | # Check if -fno-PIE works. | |
6572 | AC_CACHE_CHECK([for -fno-PIE option], | |
6573 | [gcc_cv_c_no_fpie], | |
fee22a80 L |
6574 | [saved_CXXFLAGS="$CXXFLAGS" |
6575 | CXXFLAGS="$CXXFLAGS -fno-PIE" | |
22e05272 | 6576 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
6577 | [gcc_cv_c_no_fpie=yes], |
6578 | [gcc_cv_c_no_fpie=no]) | |
fee22a80 | 6579 | CXXFLAGS="$saved_CXXFLAGS"]) |
428b3812 L |
6580 | if test "$gcc_cv_c_no_fpie" = "yes"; then |
6581 | NO_PIE_CFLAGS="-fno-PIE" | |
6582 | fi | |
6583 | AC_SUBST([NO_PIE_CFLAGS]) | |
6584 | ||
6585 | # Check if -no-pie works. | |
6586 | AC_CACHE_CHECK([for -no-pie option], | |
6587 | [gcc_cv_no_pie], | |
6588 | [saved_LDFLAGS="$LDFLAGS" | |
6589 | LDFLAGS="$LDFLAGS -no-pie" | |
22e05272 | 6590 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
6591 | [gcc_cv_no_pie=yes], |
6592 | [gcc_cv_no_pie=no]) | |
6593 | LDFLAGS="$saved_LDFLAGS"]) | |
6594 | if test "$gcc_cv_no_pie" = "yes"; then | |
6595 | NO_PIE_FLAG="-no-pie" | |
6596 | fi | |
6597 | AC_SUBST([NO_PIE_FLAG]) | |
6598 | ||
6de59c8a IE |
6599 | # Check linker supports '-z bndplt' |
6600 | ld_bndplt_support=no | |
6601 | AC_MSG_CHECKING(linker -z bndplt option) | |
6602 | if test x"$ld_is_gold" = xno; then | |
6603 | if test $in_tree_ld = yes ; then | |
6604 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6605 | ld_bndplt_support=yes | |
6606 | fi | |
6607 | elif test x$gcc_cv_ld != x; then | |
6608 | # Check if linker supports -a bndplt option | |
8dc877eb | 6609 | if $gcc_cv_ld --help 2>&1 | grep -- '-z bndplt' > /dev/null; then |
6de59c8a IE |
6610 | ld_bndplt_support=yes |
6611 | fi | |
6612 | fi | |
6613 | fi | |
6614 | if test x"$ld_bndplt_support" = xyes; then | |
6615 | AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1, | |
6616 | [Define if your linker supports -z bndplt]) | |
6617 | fi | |
6618 | AC_MSG_RESULT($ld_bndplt_support) | |
6619 | ||
7e495577 AI |
6620 | # Check linker supports '--push-state'/'--pop-state' |
6621 | ld_pushpopstate_support=no | |
6622 | AC_MSG_CHECKING(linker --push-state/--pop-state options) | |
6623 | if test x"$ld_is_gold" = xno; then | |
6624 | if test $in_tree_ld = yes ; then | |
6625 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6626 | ld_pushpopstate_support=yes | |
6627 | fi | |
6628 | elif test x$gcc_cv_ld != x; then | |
6629 | # Check if linker supports --push-state/--pop-state options | |
8dc877eb | 6630 | if $gcc_cv_ld --help 2>&1 | grep -- '--push-state' > /dev/null; then |
7e495577 AI |
6631 | ld_pushpopstate_support=yes |
6632 | fi | |
6633 | fi | |
6634 | fi | |
6635 | if test x"$ld_pushpopstate_support" = xyes; then | |
6636 | AC_DEFINE(HAVE_LD_PUSHPOPSTATE_SUPPORT, 1, | |
6637 | [Define if your linker supports --push-state/--pop-state]) | |
6638 | fi | |
6639 | AC_MSG_RESULT($ld_pushpopstate_support) | |
6640 | ||
46f18e7b RK |
6641 | # Configure the subdirectories |
6642 | # AC_CONFIG_SUBDIRS($subdirs) | |
6643 | ||
6644 | # Create the Makefile | |
5891b37d | 6645 | # and configure language subdirectories |
914c5af7 NN |
6646 | AC_CONFIG_FILES($all_outputs) |
6647 | ||
6648 | AC_CONFIG_COMMANDS([default], | |
cdcc6a01 | 6649 | [ |
f1faaabd NN |
6650 | case ${CONFIG_HEADERS} in |
6651 | *auto-host.h:config.in*) | |
6652 | echo > cstamp-h ;; | |
cdcc6a01 | 6653 | esac |
2ed26f6b | 6654 | # Make sure all the subdirs exist. |
c49a6962 | 6655 | for d in $subdirs doc build common c-family |
2ed26f6b | 6656 | do |
2ed26f6b | 6657 | test -d $d || mkdir $d |
2ed26f6b | 6658 | done |
0d24f4d1 | 6659 | ], |
35f06ae4 | 6660 | [subdirs='$subdirs']) |
914c5af7 | 6661 | AC_OUTPUT |
fd438373 | 6662 |