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ca9bc441 | 1 | # configure.ac for GCC |
46f18e7b RK |
2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
85ec4feb | 4 | # Copyright (C) 1997-2018 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 UB |
485 | m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings ], |
486 | [-Wcast-qual $wf_opt])), [loose_warn]) | |
f6e377f8 | 487 | ACX_PROG_CC_WARNING_OPTS( |
00020c16 ILT |
488 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])), |
489 | [c_loose_warn]) | |
ff771de3 | 490 | ACX_PROG_CXX_WARNING_OPTS( |
ec9d5ad1 UB |
491 | m4_quote(m4_do([-Wmissing-format-attribute ], |
492 | [-Woverloaded-virtual])), [strict_warn]) | |
00020c16 ILT |
493 | ACX_PROG_CC_WARNING_OPTS( |
494 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
ff771de3 | 495 | ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC( |
75c9cbe3 AS |
496 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
497 | [-Wno-overlength-strings])), [strict_warn]) | |
ff771de3 | 498 | ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
3bbd5a19 PB |
499 | |
500 | # The above macros do nothing if the compiler is not GCC. However, the | |
00020c16 ILT |
501 | # Makefile has more goo to add other flags, so these variables are used |
502 | # to enable warnings only for GCC. | |
414d23ae | 503 | warn_cflags= |
00020c16 | 504 | warn_cxxflags= |
414d23ae HPN |
505 | if test "x$GCC" = "xyes"; then |
506 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
00020c16 | 507 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
414d23ae HPN |
508 | fi |
509 | AC_SUBST(warn_cflags) | |
00020c16 | 510 | AC_SUBST(warn_cxxflags) |
414d23ae | 511 | |
e9411247 MM |
512 | # Disable exceptions and RTTI if building with g++ |
513 | ACX_PROG_CC_WARNING_OPTS( | |
3d47a53a UB |
514 | m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])), |
515 | [noexception_flags]) | |
e9411247 | 516 | |
8b1f719a | 517 | # Enable expensive internal checks |
a1286ef5 ZW |
518 | is_release= |
519 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
520 | is_release=yes | |
521 | fi | |
dd859b8a | 522 | |
a494747c | 523 | AC_ARG_ENABLE(checking, |
b88ecf55 AS |
524 | [AS_HELP_STRING([[--enable-checking[=LIST]]], |
525 | [enable expensive run-time checks. With LIST, | |
526 | enable only specific categories of checks. | |
527 | Categories are: yes,no,all,none,release. | |
7db11a5a | 528 | Flags are: assert,df,extra,fold,gc,gcac,gimple,misc, |
b88ecf55 | 529 | rtlflag,rtl,runtime,tree,valgrind,types])], |
e1bbfc5c NS |
530 | [ac_checking_flags="${enableval}"],[ |
531 | # Determine the default checks. | |
532 | if test x$is_release = x ; then | |
7db11a5a | 533 | ac_checking_flags=yes,extra |
e1bbfc5c NS |
534 | else |
535 | ac_checking_flags=release | |
536 | fi]) | |
e1bbfc5c | 537 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
04c3028a | 538 | for check in release $ac_checking_flags |
e1bbfc5c NS |
539 | do |
540 | case $check in | |
cdce5c16 | 541 | # these set all the flags to specific states |
0d475361 | 542 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
7db11a5a | 543 | ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ; |
726a989a | 544 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
232b67d9 | 545 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c | 546 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
1b24a790 | 547 | ac_types_checking=1 ;; |
3089f8b5 | 548 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 549 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 550 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
232b67d9 | 551 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
7e98624c RG |
552 | ac_tree_checking= ; ac_valgrind_checking= ; |
553 | ac_types_checking= ;; | |
3089f8b5 | 554 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
7db11a5a | 555 | ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ; |
726a989a | 556 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
cdce5c16 | 557 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c RG |
558 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
559 | ac_types_checking=1 ;; | |
3089f8b5 | 560 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
7db11a5a | 561 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
726a989a | 562 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
cdce5c16 | 563 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
7e98624c RG |
564 | ac_tree_checking= ; ac_valgrind_checking= ; |
565 | ac_types_checking= ;; | |
cdce5c16 | 566 | # these enable particular checks |
e1bbfc5c | 567 | assert) ac_assert_checking=1 ;; |
7db11a5a JJ |
568 | df) ac_df_checking=1 ;; |
569 | extra) ac_extra_checking=1 ;; | |
e1bbfc5c NS |
570 | fold) ac_fold_checking=1 ;; |
571 | gc) ac_gc_checking=1 ;; | |
572 | gcac) ac_gc_always_collect=1 ;; | |
726a989a | 573 | gimple) ac_gimple_checking=1 ;; |
e1bbfc5c | 574 | misc) ac_checking=1 ;; |
e1bbfc5c | 575 | rtl) ac_rtl_checking=1 ;; |
cdce5c16 | 576 | rtlflag) ac_rtlflag_checking=1 ;; |
b53ef395 | 577 | runtime) ac_runtime_checking=1 ;; |
e1bbfc5c | 578 | tree) ac_tree_checking=1 ;; |
7e98624c | 579 | types) ac_types_checking=1 ;; |
cdce5c16 | 580 | valgrind) ac_valgrind_checking=1 ;; |
e1bbfc5c NS |
581 | *) AC_MSG_ERROR(unknown check category $check) ;; |
582 | esac | |
583 | done | |
584 | IFS="$ac_save_IFS" | |
585 | ||
204250d2 | 586 | nocommon_flag="" |
119d24d1 | 587 | if test x$ac_checking != x ; then |
b06f87c7 BE |
588 | AC_DEFINE(CHECKING_P, 1, |
589 | [Define to 0/1 if you want more run-time sanity checks. This one gets a grab | |
590 | bag of miscellaneous but relatively cheap checks.]) | |
204250d2 | 591 | nocommon_flag=-fno-common |
7ec491c0 MM |
592 | else |
593 | AC_DEFINE(CHECKING_P, 0) | |
119d24d1 | 594 | fi |
204250d2 | 595 | AC_SUBST(nocommon_flag) |
b06f87c7 BE |
596 | if test x$ac_extra_checking != x ; then |
597 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 1, | |
598 | [Define to 0/1 if you want extra run-time checking that might affect code | |
599 | generation.]) | |
600 | else | |
601 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 0) | |
602 | fi | |
3089f8b5 PB |
603 | if test x$ac_df_checking != x ; then |
604 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
605 | [Define if you want more run-time sanity checks for dataflow.]) | |
606 | fi | |
06c37c96 NS |
607 | if test x$ac_assert_checking != x ; then |
608 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
609 | [Define if you want assertions enabled. This is a cheap check.]) | |
610 | fi | |
726a989a RB |
611 | if test x$ac_gimple_checking != x ; then |
612 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
613 | [Define if you want operations on GIMPLE (the basic data structure of | |
614 | the high-level optimizers) to be checked for dynamic type safety at | |
615 | runtime. This is moderately expensive.]) | |
616 | fi | |
232b67d9 | 617 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
b53ef395 NS |
618 | if test x$ac_runtime_checking != x ; then |
619 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
620 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
621 | fi | |
119d24d1 KG |
622 | if test x$ac_tree_checking != x ; then |
623 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
624 | [Define if you want all operations on trees (the basic data | |
625 | structure of the front ends) to be checked for dynamic type safety | |
8d2ccbd2 | 626 | at runtime. This is moderately expensive. |
13f05fd0 | 627 | ]) |
7cb9fd07 | 628 | TREECHECKING=yes |
119d24d1 | 629 | fi |
7e98624c RG |
630 | if test x$ac_types_checking != x ; then |
631 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
632 | [Define if you want all gimple types to be verified after gimplifiation. | |
633 | This is cheap. | |
634 | ]) | |
635 | fi | |
7cb9fd07 | 636 | AC_SUBST(TREECHECKING) |
119d24d1 KG |
637 | if test x$ac_rtl_checking != x ; then |
638 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
639 | [Define if you want all operations on RTL (the basic data structure | |
640 | of the optimizer and back end) to be checked for dynamic type safety | |
641 | at runtime. This is quite expensive.]) | |
642 | fi | |
4c76f856 JJ |
643 | if test x$ac_rtlflag_checking != x ; then |
644 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
645 | [Define if you want RTL flag accesses to be checked against the RTL | |
646 | codes that are supported for each access macro. This is relatively | |
647 | cheap.]) | |
648 | fi | |
119d24d1 KG |
649 | if test x$ac_gc_checking != x ; then |
650 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
651 | [Define if you want the garbage collector to do object poisoning and | |
652 | other memory allocation checks. This is quite expensive.]) | |
653 | fi | |
654 | if test x$ac_gc_always_collect != x ; then | |
655 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
656 | [Define if you want the garbage collector to operate in maximally | |
657 | paranoid mode, validating the entire heap and collecting garbage at | |
658 | every opportunity. This is extremely expensive.]) | |
659 | fi | |
5dfa45d0 JJ |
660 | if test x$ac_fold_checking != x ; then |
661 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
662 | [Define if you want fold checked that it never destructs its argument. | |
663 | This is quite expensive.]) | |
664 | fi | |
414d23ae HPN |
665 | valgrind_path_defines= |
666 | valgrind_command= | |
6938ec6c NN |
667 | |
668 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
669 | dnl # an if statement. This was the source of very frustrating bugs | |
670 | dnl # in converting to autoconf 2.5x! | |
671 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
672 | ||
279a935f RB |
673 | # It is certainly possible that there's valgrind but no valgrind.h. |
674 | # GCC relies on making annotations so we must have both. | |
675 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
676 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
677 | [[#include <valgrind/memcheck.h> | |
a207b594 HPN |
678 | #ifndef VALGRIND_DISCARD |
679 | #error VALGRIND_DISCARD not defined | |
f04f1d2c | 680 | #endif]])], |
a207b594 HPN |
681 | [gcc_cv_header_valgrind_memcheck_h=yes], |
682 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
279a935f RB |
683 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) |
684 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
685 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
686 | [[#include <memcheck.h> | |
14011ca4 AJ |
687 | #ifndef VALGRIND_DISCARD |
688 | #error VALGRIND_DISCARD not defined | |
f04f1d2c KC |
689 | #endif]])], |
690 | [gcc_cv_header_memcheck_h=yes], | |
691 | [gcc_cv_header_memcheck_h=no]) | |
279a935f RB |
692 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
693 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
694 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
695 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
696 | fi | |
697 | if test $gcc_cv_header_memcheck_h = yes; then | |
698 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
699 | [Define if valgrind's memcheck.h header is installed.]) | |
700 | fi | |
701 | ||
702 | if test x$ac_valgrind_checking != x ; then | |
414d23ae HPN |
703 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
704 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a207b594 HPN |
705 | if test "x$valgrind_path" = "x" \ |
706 | || (test $have_valgrind_h = no \ | |
707 | && test $gcc_cv_header_memcheck_h = no \ | |
708 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
709 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
414d23ae HPN |
710 | fi |
711 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
712 | valgrind_command="$valgrind_path -q" | |
713 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
714 | [Define if you want to run subprograms and generated programs | |
715 | through valgrind (a memory checker). This is extremely expensive.]) | |
716 | fi | |
717 | AC_SUBST(valgrind_path_defines) | |
718 | AC_SUBST(valgrind_command) | |
51d0e20c | 719 | |
22aa533e NS |
720 | # Enable code coverage collection |
721 | AC_ARG_ENABLE(coverage, | |
b88ecf55 AS |
722 | [AS_HELP_STRING([[--enable-coverage[=LEVEL]]], |
723 | [enable compiler's code coverage collection. | |
724 | Use to measure compiler performance and locate | |
725 | unused parts of the compiler. With LEVEL, specify | |
726 | optimization. Values are opt, noopt, | |
727 | default is noopt])], | |
22aa533e | 728 | [case "${enableval}" in |
6dd297da | 729 | yes|noopt) |
9879232c | 730 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" |
6dd297da NN |
731 | ;; |
732 | opt) | |
9879232c | 733 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" |
6dd297da NN |
734 | ;; |
735 | no) | |
736 | # a.k.a. --disable-coverage | |
737 | coverage_flags="" | |
738 | ;; | |
739 | *) | |
740 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
741 | ;; | |
22aa533e | 742 | esac], |
2043c38e | 743 | [coverage_flags=""]) |
22aa533e NS |
744 | AC_SUBST(coverage_flags) |
745 | ||
439a7e54 | 746 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
b88ecf55 AS |
747 | [AS_HELP_STRING([--enable-gather-detailed-mem-stats], |
748 | [enable detailed memory allocation stats gathering])], [], | |
439a7e54 | 749 | [enable_gather_detailed_mem_stats=no]) |
7aa6d18a SB |
750 | gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi` |
751 | AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats, | |
752 | [Define to enable detailed memory allocation stats gathering.]) | |
439a7e54 | 753 | |
279a935f RB |
754 | AC_ARG_ENABLE(valgrind-annotations, |
755 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
756 | [enable valgrind runtime interaction])], [], | |
757 | [enable_valgrind_annotations=no]) | |
758 | if test x$enable_valgrind_annotations != xno \ | |
759 | || test x$ac_valgrind_checking != x; then | |
760 | if (test $have_valgrind_h = no \ | |
761 | && test $gcc_cv_header_memcheck_h = no \ | |
762 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
763 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
764 | fi | |
765 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
766 | [Define to get calls to the valgrind runtime enabled.]) | |
767 | fi | |
768 | ||
73458fb7 NN |
769 | # ------------------------------- |
770 | # Miscenalleous configure options | |
771 | # ------------------------------- | |
34a86c2b NN |
772 | |
773 | # With stabs | |
774 | AC_ARG_WITH(stabs, | |
b88ecf55 AS |
775 | [AS_HELP_STRING([--with-stabs], |
776 | [arrange to use stabs instead of host debug format])], | |
34a86c2b NN |
777 | stabs="$with_stabs", |
778 | stabs=no) | |
779 | ||
34a86c2b NN |
780 | # Determine whether or not multilibs are enabled. |
781 | AC_ARG_ENABLE(multilib, | |
b88ecf55 AS |
782 | [AS_HELP_STRING([--enable-multilib], |
783 | [enable library support for multiple ABIs])], | |
34a86c2b NN |
784 | [], [enable_multilib=yes]) |
785 | AC_SUBST(enable_multilib) | |
3ecc3258 | 786 | |
e0cdc09f MK |
787 | # Determine whether or not multiarch is enabled. |
788 | AC_ARG_ENABLE(multiarch, | |
789 | [AS_HELP_STRING([--enable-multiarch], | |
790 | [enable support for multiarch paths])], | |
5213f20c MK |
791 | [case "${enableval}" in |
792 | yes|no|auto) enable_multiarch=$enableval;; | |
793 | *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;; | |
e0cdc09f MK |
794 | esac], [enable_multiarch=auto]) |
795 | if test x${enable_multiarch} = xauto; then | |
796 | if test x${with_native_system_header_dir} != x; then | |
797 | ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)" | |
798 | enable_multiarch=no | |
799 | fi | |
800 | if test x$host != x$target && test "x$with_sysroot" = x; then | |
801 | ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)" | |
802 | enable_multiarch=no | |
803 | fi | |
804 | fi | |
805 | AC_MSG_CHECKING(for multiarch configuration) | |
806 | AC_SUBST(enable_multiarch) | |
807 | AC_MSG_RESULT($enable_multiarch$ma_msg_suffix) | |
808 | ||
809 | # needed for setting the multiarch name for soft-float/hard-float ABIs | |
d757eae9 | 810 | AC_SUBST(with_cpu) |
e0cdc09f MK |
811 | AC_SUBST(with_float) |
812 | ||
630b1e3a TC |
813 | # default stack clash protection guard size as power of twos in bytes. |
814 | # Please keep these in sync with params.def. | |
815 | stk_clash_min=12 | |
816 | stk_clash_max=30 | |
817 | ||
818 | # Keep the default value when the option is not used to 0, this allows us to | |
819 | # distinguish between the cases where the user specifially set a value via | |
820 | # configure and when the normal default value is used. | |
821 | AC_ARG_WITH(stack-clash-protection-guard-size, | |
822 | [AS_HELP_STRING([--with-stack-clash-protection-guard-size=size], | |
823 | [Set the default stack clash protection guard size for specific targets as a power of two in bytes.])], | |
824 | [DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0]) | |
825 | if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \ | |
826 | && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \ | |
827 | || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then | |
828 | AC_MSG_ERROR(m4_normalize([ | |
829 | Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \ | |
830 | Must be between $stk_clash_min and $stk_clash_max.])) | |
831 | fi | |
832 | ||
833 | AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE, | |
834 | [Define to larger than zero set the default stack clash protector size.]) | |
835 | ||
4bafaa6f L |
836 | # Enable __cxa_atexit for C++. |
837 | AC_ARG_ENABLE(__cxa_atexit, | |
b88ecf55 | 838 | [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])], |
4bafaa6f | 839 | [], []) |
2121a768 | 840 | |
486aa804 | 841 | # Enable C extension for decimal float if target supports it. |
3c39bca6 | 842 | GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) |
486aa804 | 843 | |
79b87c74 | 844 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
486aa804 BE |
845 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
846 | [Define to 1 to enable decimal float extension to C.]) | |
847 | ||
cc0ae0ca L |
848 | # Use default_decimal_float for dependency. |
849 | enable_decimal_float=$default_decimal_float | |
850 | ||
79b87c74 MM |
851 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` |
852 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
853 | [Define to 1 to specify that we are using the BID decimal floating | |
854 | point format instead of DPD]) | |
855 | ||
ab22c1fa CF |
856 | # Enable C extension for fixed-point arithmetic. |
857 | AC_ARG_ENABLE(fixed-point, | |
b88ecf55 AS |
858 | [AS_HELP_STRING([--enable-fixed-point], |
859 | [enable fixed-point arithmetic extension to C])], | |
860 | [], | |
ab22c1fa CF |
861 | [ |
862 | case $target in | |
655b30bf JB |
863 | arm*) |
864 | enable_fixed_point=yes | |
865 | ;; | |
866 | ||
ab22c1fa | 867 | mips*-*-*) |
b24513a1 | 868 | enable_fixed_point=yes |
ab22c1fa CF |
869 | ;; |
870 | *) | |
84f47d20 | 871 | AC_MSG_WARN([fixed-point is not supported for this target, ignored]) |
ab22c1fa CF |
872 | enable_fixed_point=no |
873 | ;; | |
874 | esac | |
875 | ]) | |
876 | AC_SUBST(enable_fixed_point) | |
877 | ||
878 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
879 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
880 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
881 | ||
0bbb1697 RK |
882 | # Enable threads |
883 | # Pass with no value to take the default | |
884 | # Pass with a value to specify a thread package | |
885 | AC_ARG_ENABLE(threads, | |
b88ecf55 AS |
886 | [AS_HELP_STRING([[--enable-threads[=LIB]]], |
887 | [enable thread usage for target GCC, | |
888 | using LIB thread package])],, | |
615be2cf | 889 | [enable_threads='']) |
0bbb1697 | 890 | |
8dea1cca | 891 | AC_ARG_ENABLE(tls, |
b88ecf55 AS |
892 | [AS_HELP_STRING([--enable-tls], |
893 | [enable or disable generation of tls code | |
894 | overriding the assembler check for tls support])], | |
8dea1cca DD |
895 | [ |
896 | case $enable_tls in | |
897 | yes | no) ;; | |
898 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
899 | Valid choices are 'yes' and 'no'.]) ;; | |
900 | esac | |
901 | ], [enable_tls='']) | |
902 | ||
ad103b01 RO |
903 | AC_ARG_ENABLE(vtable-verify, |
904 | [AS_HELP_STRING([--enable-vtable-verify], | |
905 | [enable vtable verification feature])],, | |
906 | [enable_vtable_verify=no]) | |
907 | vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi` | |
908 | AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify, | |
909 | [Define 0/1 if vtable verification feature is enabled.]) | |
910 | ||
d8bb17c8 | 911 | AC_ARG_ENABLE(objc-gc, |
b88ecf55 AS |
912 | [AS_HELP_STRING([--enable-objc-gc], |
913 | [enable the use of Boehm's garbage collector with | |
914 | the GNU Objective-C runtime])], | |
2618c083 | 915 | if test x$enable_objc_gc = xno; then |
d8bb17c8 OP |
916 | objc_boehm_gc='' |
917 | else | |
918 | objc_boehm_gc=1 | |
919 | fi, | |
920 | objc_boehm_gc='') | |
921 | ||
90e6a802 | 922 | AC_ARG_WITH(dwarf2, |
b88ecf55 | 923 | [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])], |
87921b81 | 924 | dwarf2="$with_dwarf2", |
90e6a802 RL |
925 | dwarf2=no) |
926 | ||
50503ac8 | 927 | AC_ARG_ENABLE(shared, |
b88ecf55 | 928 | [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])], |
c785e0fa AO |
929 | [ |
930 | case $enable_shared in | |
931 | yes | no) ;; | |
932 | *) | |
933 | enable_shared=no | |
934 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
935 | for pkg in $enableval; do | |
936 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
937 | enable_shared=yes | |
938 | fi | |
939 | done | |
940 | IFS="$ac_save_ifs" | |
941 | ;; | |
942 | esac | |
943 | ], [enable_shared=yes]) | |
50503ac8 RH |
944 | AC_SUBST(enable_shared) |
945 | ||
1765b023 RV |
946 | AC_ARG_ENABLE(gcov, |
947 | [ --disable-gcov don't provide libgcov and related host tools], | |
948 | [], [enable_gcov=yes]) | |
949 | AC_SUBST(enable_gcov) | |
950 | ||
e11ddaf5 NS |
951 | AC_ARG_WITH(specs, |
952 | [AS_HELP_STRING([--with-specs=SPECS], | |
953 | [add SPECS to driver command-line processing])], | |
954 | [CONFIGURE_SPECS=$withval], | |
955 | [CONFIGURE_SPECS=] | |
956 | ) | |
957 | AC_SUBST(CONFIGURE_SPECS) | |
958 | ||
2f41c1d6 | 959 | ACX_PKGVERSION([GCC]) |
9334ef9e | 960 | ACX_BUGURL([https://gcc.gnu.org/bugs/]) |
2f41c1d6 | 961 | |
e4c9c075 PB |
962 | # Sanity check enable_languages in case someone does not run the toplevel |
963 | # configure # script. | |
964 | AC_ARG_ENABLE(languages, | |
b88ecf55 | 965 | [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])], |
e4c9c075 PB |
966 | [case ,${enable_languages}, in |
967 | ,,|,yes,) | |
968 | # go safe -- we cannot be much sure without the toplevel | |
969 | # configure's | |
970 | # analysis of which target libs are present and usable | |
971 | enable_languages=c | |
972 | ;; | |
973 | *,all,*) | |
974 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
975 | ;; | |
976 | *,c,*) | |
977 | ;; | |
978 | *) | |
979 | enable_languages=c,${enable_languages} | |
980 | ;; | |
981 | esac], | |
982 | [enable_languages=c]) | |
983 | ||
85c64bbe BS |
984 | if test x"$enable_as_accelerator_for" != x; then |
985 | AC_DEFINE(ACCEL_COMPILER, 1, | |
986 | [Define if this compiler should be built as the offload target compiler.]) | |
987 | enable_as_accelerator=yes | |
988 | case "${target}" in | |
989 | *-intelmicemul-*) | |
990 | # In this case we expect offload compiler to be built as native, so we | |
991 | # need to rename the driver to avoid clashes with host's drivers. | |
992 | program_transform_name="s&^&${target}-&" ;; | |
993 | esac | |
994 | sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#" | |
995 | program_transform_name=`echo $program_transform_name | sed $sedscript` | |
996 | accel_dir_suffix=/accel/${target_noncanonical} | |
997 | real_target_noncanonical=${enable_as_accelerator_for} | |
998 | fi | |
999 | AC_SUBST(enable_as_accelerator) | |
1000 | AC_SUBST(real_target_noncanonical) | |
1001 | AC_SUBST(accel_dir_suffix) | |
1002 | ||
1003 | for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do | |
1004 | tgt=`echo $tgt | sed 's/=.*//'` | |
b2b40051 MJ |
1005 | |
1006 | if echo "$tgt" | grep "^hsa" > /dev/null ; then | |
1007 | enable_hsa=1 | |
1008 | else | |
1009 | enable_offloading=1 | |
1010 | fi | |
1011 | ||
85c64bbe BS |
1012 | if test x"$offload_targets" = x; then |
1013 | offload_targets=$tgt | |
1014 | else | |
64186aad | 1015 | offload_targets="$offload_targets,$tgt" |
85c64bbe BS |
1016 | fi |
1017 | done | |
1018 | AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", | |
64186aad | 1019 | [Define to offload targets, separated by commas.]) |
b2b40051 | 1020 | if test x"$enable_offloading" != x; then |
85c64bbe BS |
1021 | AC_DEFINE(ENABLE_OFFLOADING, 1, |
1022 | [Define this to enable support for offloading.]) | |
1d899da2 TS |
1023 | else |
1024 | AC_DEFINE(ENABLE_OFFLOADING, 0, | |
1025 | [Define this to enable support for offloading.]) | |
85c64bbe BS |
1026 | fi |
1027 | ||
b2b40051 MJ |
1028 | if test x"$enable_hsa" = x1 ; then |
1029 | AC_DEFINE(ENABLE_HSA, 1, | |
1030 | [Define this to enable support for generating HSAIL.]) | |
1031 | fi | |
1032 | ||
aca600aa | 1033 | AC_ARG_WITH(multilib-list, |
17a819cb | 1034 | [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])], |
aca600aa AS |
1035 | :, |
1036 | with_multilib_list=default) | |
1037 | ||
73458fb7 NN |
1038 | # ------------------------- |
1039 | # Checks for other programs | |
1040 | # ------------------------- | |
61842080 | 1041 | |
e9a25f70 JL |
1042 | AC_PROG_MAKE_SET |
1043 | ||
46f18e7b RK |
1044 | # Find some useful tools |
1045 | AC_PROG_AWK | |
776dc15d | 1046 | # We need awk to create options.c and options.h. |
2c4902b9 NN |
1047 | # Bail out if it's missing. |
1048 | case ${AWK} in | |
1049 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
1050 | esac | |
1051 | ||
99e757d5 | 1052 | gcc_AC_PROG_LN_S |
ad6717df | 1053 | ACX_PROG_LN($LN_S) |
46f18e7b | 1054 | AC_PROG_RANLIB |
10eb188c | 1055 | ranlib_flags="" |
343a6100 MM |
1056 | AC_SUBST(ranlib_flags) |
1057 | ||
99e757d5 | 1058 | gcc_AC_PROG_INSTALL |
46f18e7b | 1059 | |
3a000df0 KC |
1060 | # See if cmp has --ignore-initial. |
1061 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
1062 | ||
955be633 JM |
1063 | # See if we have the mktemp command. |
1064 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
1065 | ||
7c27e184 PB |
1066 | # See if makeinfo has been installed and is modern enough |
1067 | # that we can use it. | |
3bbd5a19 | 1068 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
09fa0705 | 1069 | [GNU texinfo.* \([0-9][0-9.]*\)], |
7326a39e | 1070 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
09fa0705 ZW |
1071 | if test $gcc_cv_prog_makeinfo_modern = no; then |
1072 | AC_MSG_WARN([ | |
1073 | *** Makeinfo is missing or too old. | |
17db6582 | 1074 | *** Info documentation will not be built.]) |
09fa0705 | 1075 | BUILD_INFO= |
09fa0705 | 1076 | else |
7c27e184 | 1077 | BUILD_INFO=info |
09fa0705 | 1078 | fi |
7c27e184 | 1079 | AC_SUBST(BUILD_INFO) |
09fa0705 | 1080 | |
3f896fc2 JM |
1081 | # Is pod2man recent enough to regenerate manpages? |
1082 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7be33370 | 1083 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fd939e46 | 1084 | AC_MSG_RESULT(yes) |
7c27e184 | 1085 | GENERATED_MANPAGES=generated-manpages |
fd939e46 JM |
1086 | else |
1087 | AC_MSG_RESULT(no) | |
1088 | GENERATED_MANPAGES= | |
1089 | fi | |
7c27e184 | 1090 | AC_SUBST(GENERATED_MANPAGES) |
fd939e46 | 1091 | |
3bbd5a19 PB |
1092 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
1093 | ||
1e608388 ZW |
1094 | # How about lex? |
1095 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
1096 | dnl LEXLIB is not useful in gcc. | |
7c27e184 | 1097 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
1e608388 ZW |
1098 | |
1099 | # Bison? | |
7c27e184 PB |
1100 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
1101 | ||
1102 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
1103 | # check for build == host before using them. | |
1e608388 | 1104 | |
f6a874ac | 1105 | # NM |
414adbdd GK |
1106 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
1107 | && test -d ../binutils ; then | |
bfa912a8 | 1108 | NM='${objdir}/../binutils/nm-new' |
f6a874ac JW |
1109 | else |
1110 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
1111 | fi | |
1112 | ||
1113 | # AR | |
414adbdd GK |
1114 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
1115 | && test -d ../binutils ; then | |
bfa912a8 | 1116 | AR='${objdir}/../binutils/ar' |
f6a874ac JW |
1117 | else |
1118 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
1119 | fi | |
1120 | ||
35485da9 DM |
1121 | # The jit documentation looks better if built with sphinx, but can be |
1122 | # built with texinfo if sphinx is not available. | |
1123 | # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly. | |
1124 | AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo) | |
f6a874ac | 1125 | |
73458fb7 NN |
1126 | # -------------------- |
1127 | # Checks for C headers | |
1128 | # -------------------- | |
1129 | ||
ca9bc441 NN |
1130 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
1131 | # works later. *sigh* This needs to come before all header checks. | |
1132 | AC_PROG_CPP_WERROR | |
1133 | ||
73458fb7 NN |
1134 | AC_HEADER_STDC |
1135 | AC_HEADER_TIME | |
4f4e53dd | 1136 | ACX_HEADER_STRING |
73458fb7 | 1137 | AC_HEADER_SYS_WAIT |
c68a6e08 | 1138 | AC_HEADER_TIOCGWINSZ |
dfb77e37 | 1139 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
37050045 | 1140 | fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
73458fb7 | 1141 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
4fbfcf44 | 1142 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
73458fb7 NN |
1143 | |
1144 | # Check for thread headers. | |
1145 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
1146 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
1147 | ||
1148 | # These tests can't be done till we know if we have limits.h. | |
1149 | gcc_AC_C_CHAR_BIT | |
9791c75c | 1150 | AC_C_BIGENDIAN |
73458fb7 | 1151 | |
5427046f ILT |
1152 | # ---------------------- |
1153 | # Checks for C++ headers | |
1154 | # ---------------------- | |
1155 | ||
c658f0ce ILT |
1156 | dnl Autoconf will give an error in the configure script if there is no |
1157 | dnl C++ preprocessor. Hack to prevent that. | |
1158 | m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl | |
1159 | AC_PROG_CXXCPP | |
1160 | m4_popdef([AC_MSG_ERROR])[]dnl | |
1161 | ||
5427046f ILT |
1162 | AC_CHECK_HEADERS(unordered_map) |
1163 | AC_CHECK_HEADERS(tr1/unordered_map) | |
1164 | AC_CHECK_HEADERS(ext/hash_map) | |
1165 | ||
043378c3 TT |
1166 | # -------- |
1167 | # Dependency checking. | |
1168 | # -------- | |
1169 | ||
043378c3 TT |
1170 | ZW_CREATE_DEPDIR |
1171 | AC_CONFIG_COMMANDS([gccdepdir],[ | |
1172 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR | |
1173 | for lang in $subdirs c-family common | |
1174 | do | |
1175 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR | |
1176 | done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) | |
1177 | ||
54c09437 | 1178 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
5427046f | 1179 | |
73458fb7 NN |
1180 | # -------- |
1181 | # UNSORTED | |
1182 | # -------- | |
1183 | ||
73458fb7 | 1184 | |
4e70264f ZW |
1185 | # These libraries may be used by collect2. |
1186 | # We may need a special search path to get them linked. | |
1187 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1188 | [save_LIBS="$LIBS" | |
7f2749d4 | 1189 | for libs in '' -lld -lmld \ |
4e70264f ZW |
1190 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1191 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1192 | do | |
1193 | LIBS="$libs" | |
1194 | AC_TRY_LINK_FUNC(ldopen, | |
1195 | [gcc_cv_collect2_libs="$libs"; break]) | |
1196 | done | |
1197 | LIBS="$save_LIBS" | |
1198 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1199 | case $gcc_cv_collect2_libs in | |
1200 | "none required") ;; | |
1201 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1202 | esac | |
1203 | AC_SUBST(COLLECT2_LIBS) | |
1204 | ||
7f2749d4 RK |
1205 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1206 | # -lexc. So test for it. | |
1207 | save_LIBS="$LIBS" | |
1208 | LIBS= | |
1209 | AC_SEARCH_LIBS(exc_resume, exc) | |
1210 | GNAT_LIBEXC="$LIBS" | |
1211 | LIBS="$save_LIBS" | |
1212 | AC_SUBST(GNAT_LIBEXC) | |
1213 | ||
e3b3fa45 RO |
1214 | # To support -mcpu=native on Solaris/SPARC, we need libkstat. |
1215 | save_LIBS="$LIBS" | |
1216 | LIBS= | |
1217 | AC_SEARCH_LIBS(kstat_open, kstat) | |
1218 | EXTRA_GCC_LIBS="$LIBS" | |
1219 | LIBS="$save_LIBS" | |
1220 | AC_SUBST(EXTRA_GCC_LIBS) | |
1221 | ||
62c9aa5f ZW |
1222 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1223 | # they're both in the same place. jcf-dump needs them. | |
1224 | save_LIBS="$LIBS" | |
1225 | LIBS= | |
1226 | AC_SEARCH_LIBS(ldexp, m) | |
1227 | LDEXP_LIB="$LIBS" | |
1228 | LIBS="$save_LIBS" | |
1229 | AC_SUBST(LDEXP_LIB) | |
1230 | ||
7636d567 | 1231 | # Use <inttypes.h> only if it exists, |
35987ae9 RB |
1232 | # doesn't clash with <sys/types.h>, declares intmax_t and defines |
1233 | # PRId64 | |
7636d567 JW |
1234 | AC_MSG_CHECKING(for inttypes.h) |
1235 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
f04f1d2c | 1236 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
35987ae9 RB |
1237 | [[#define __STDC_FORMAT_MACROS |
1238 | #include <sys/types.h> | |
f04f1d2c | 1239 | #include <inttypes.h>]], |
35987ae9 RB |
1240 | [[intmax_t i = -1; |
1241 | #ifndef PRId64 | |
1242 | choke me | |
1243 | #endif]])], | |
9da0e39b | 1244 | [gcc_cv_header_inttypes_h=yes], |
f04f1d2c | 1245 | [gcc_cv_header_inttypes_h=no])]) |
7636d567 | 1246 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
9da0e39b | 1247 | if test $gcc_cv_header_inttypes_h = yes; then |
119d24d1 KG |
1248 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1249 | [Define if you have a working <inttypes.h> header file.]) | |
9da0e39b | 1250 | fi |
cdcc6a01 | 1251 | |
9612ab65 ZW |
1252 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1253 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
c149cc37 | 1254 | |
0d667716 KG |
1255 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1256 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1257 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1258 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1259 | putchar_unlocked putc_unlocked) | |
384d8786 | 1260 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \ |
b6d94045 | 1261 | popen sysconf strsignal getrusage nl_langinfo \ |
71f3e391 | 1262 | gettimeofday mbstowcs wcswidth mmap setlocale \ |
711a3d82 | 1263 | gcc_UNLOCKED_FUNCS madvise) |
a81fb89e | 1264 | |
39f6c4c8 KW |
1265 | if test x$ac_cv_func_mbstowcs = xyes; then |
1266 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
f04f1d2c | 1267 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
39f6c4c8 KW |
1268 | int main() |
1269 | { | |
1270 | mbstowcs(0, "", 0); | |
1271 | return 0; | |
f04f1d2c KC |
1272 | }]])], |
1273 | [gcc_cv_func_mbstowcs_works=yes], | |
1274 | [gcc_cv_func_mbstowcs_works=no], | |
1275 | [gcc_cv_func_mbstowcs_works=yes])]) | |
39f6c4c8 KW |
1276 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1277 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1278 | [Define this macro if mbstowcs does not crash when its | |
1279 | first argument is NULL.]) | |
1280 | fi | |
1281 | fi | |
1282 | ||
78c9cb99 | 1283 | AC_CHECK_TYPE(ssize_t, int) |
bba09b5a | 1284 | AC_CHECK_TYPE(caddr_t, char *) |
56f48ce9 | 1285 | |
2f6935f4 | 1286 | GCC_AC_FUNC_MMAP_BLACKLIST |
b27d2bd5 MK |
1287 | |
1288 | case "${host}" in | |
ee262b6f | 1289 | *-*-*vms*) |
2c55543b | 1290 | # Under VMS, vfork works very differently than on Unix. The standard test |
ee262b6f DR |
1291 | # won't work, and it isn't easily adaptable. It makes more sense to |
1292 | # just force it. | |
1293 | ac_cv_func_vfork_works=yes | |
1294 | ;; | |
b27d2bd5 | 1295 | esac |
f04f1d2c | 1296 | AC_FUNC_FORK |
f1b54f9b | 1297 | |
0823efed | 1298 | AM_ICONV |
5b6d595b | 1299 | |
56694dd9 ZW |
1300 | # Until we have in-tree GNU iconv: |
1301 | LIBICONV_DEP= | |
bf5372e7 YS |
1302 | if test -f "$LTLIBICONV"; then |
1303 | LIBICONV_DEP=$LTLIBICONV | |
1304 | fi | |
56694dd9 ZW |
1305 | AC_SUBST(LIBICONV_DEP) |
1306 | ||
1307 | AM_LC_MESSAGES | |
f91abfce | 1308 | |
a03ea89b BM |
1309 | AM_LANGINFO_CODESET |
1310 | ||
86cf1cbd KG |
1311 | # We will need to find libiberty.h and ansidecl.h |
1312 | saved_CFLAGS="$CFLAGS" | |
b8f6a302 | 1313 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
87fb500b | 1314 | saved_CXXFLAGS="$CXXFLAGS" |
b8f6a302 | 1315 | CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
13ccfea8 JM |
1316 | |
1317 | # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the | |
1318 | # normal autoconf function for these. But force definition of | |
1319 | # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre | |
1320 | # basename handling in libiberty.h. | |
1321 | AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[ | |
1322 | #undef HAVE_DECL_BASENAME | |
1323 | #define HAVE_DECL_BASENAME 1 | |
1324 | #include "ansidecl.h" | |
1325 | #include "system.h"]) | |
1326 | ||
384d8786 | 1327 | gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \ |
13ccfea8 | 1328 | madvise stpcpy strnlen strsignal strverscmp \ |
297c364d | 1329 | strtol strtoul strtoll strtoull setenv unsetenv \ |
ed5b9f96 | 1330 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ |
13ccfea8 | 1331 | free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[ |
d02af173 | 1332 | #include "ansidecl.h" |
86cf1cbd | 1333 | #include "system.h"]) |
c5c76735 | 1334 | |
f31e826b | 1335 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
d02af173 | 1336 | #include "ansidecl.h" |
86cf1cbd | 1337 | #include "system.h" |
d2cabf16 KG |
1338 | #ifdef HAVE_SYS_RESOURCE_H |
1339 | #include <sys/resource.h> | |
1340 | #endif | |
1341 | ]) | |
1342 | ||
f04f1d2c | 1343 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
b2522d2b HPN |
1344 | #include "ansidecl.h" |
1345 | #include "system.h" | |
1346 | #ifdef HAVE_SYS_RESOURCE_H | |
1347 | #include <sys/resource.h> | |
1348 | #endif | |
f04f1d2c | 1349 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
236ec2d7 | 1350 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
b2522d2b | 1351 | |
2102b2fe RS |
1352 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1353 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1354 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1355 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
351df804 KG |
1356 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1357 | #include "ansidecl.h" | |
1358 | #include "system.h" | |
1359 | #ifdef HAVE_LDFCN_H | |
2102b2fe RS |
1360 | #undef FREAD |
1361 | #undef FWRITE | |
351df804 KG |
1362 | #include <ldfcn.h> |
1363 | #endif | |
1364 | ]) | |
1365 | ||
c1800ec8 ZW |
1366 | gcc_AC_CHECK_DECLS(times, , ,[ |
1367 | #include "ansidecl.h" | |
1368 | #include "system.h" | |
1369 | #ifdef HAVE_SYS_TIMES_H | |
1370 | #include <sys/times.h> | |
1371 | #endif | |
1372 | ]) | |
1373 | ||
4f6d8cc8 GK |
1374 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1375 | #include "ansidecl.h" | |
1376 | #include "system.h" | |
1377 | #include <signal.h> | |
1378 | ]) | |
1379 | ||
c1800ec8 ZW |
1380 | # More time-related stuff. |
1381 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
f04f1d2c | 1382 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1383 | #include "ansidecl.h" |
1384 | #include "system.h" | |
1385 | #ifdef HAVE_SYS_TIMES_H | |
1386 | #include <sys/times.h> | |
1387 | #endif | |
f04f1d2c | 1388 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c1800ec8 ZW |
1389 | if test $ac_cv_struct_tms = yes; then |
1390 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1391 | [Define if <sys/times.h> defines struct tms.]) | |
1392 | fi | |
1393 | ||
1394 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1395 | # revisit after autoconf 2.50. | |
1396 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
f04f1d2c | 1397 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1398 | #include "ansidecl.h" |
1399 | #include "system.h" | |
f04f1d2c | 1400 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c1800ec8 ZW |
1401 | if test $gcc_cv_type_clock_t = yes; then |
1402 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1403 | [Define if <time.h> defines clock_t.]) | |
1404 | fi | |
1405 | ||
c1736aea TJ |
1406 | # Check if F_SETLKW is supported by fcntl. |
1407 | AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [ | |
1408 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1409 | #include <fcntl.h>]], [[ | |
1410 | struct flock fl; | |
1411 | fl.l_whence = 0; | |
1412 | fl.l_start = 0; | |
1413 | fl.l_len = 0; | |
1414 | fl.l_pid = 0; | |
1415 | return fcntl (1, F_SETLKW, &fl);]])], | |
1416 | [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])]) | |
1417 | if test $ac_cv_f_setlkw = yes; then | |
1418 | AC_DEFINE(HOST_HAS_F_SETLKW, 1, | |
1419 | [Define if F_SETLKW supported by fcntl.]) | |
1420 | fi | |
1421 | ||
87fb500b | 1422 | # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
86cf1cbd | 1423 | CFLAGS="$saved_CFLAGS" |
87fb500b | 1424 | CXXFLAGS="$saved_CXXFLAGS" |
86cf1cbd | 1425 | |
75923b2f | 1426 | # mkdir takes a single argument on some systems. |
99e757d5 | 1427 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
75923b2f | 1428 | |
46f18e7b RK |
1429 | # File extensions |
1430 | manext='.1' | |
1431 | objext='.o' | |
46f18e7b RK |
1432 | AC_SUBST(manext) |
1433 | AC_SUBST(objext) | |
46f18e7b | 1434 | |
4977bab6 ZW |
1435 | # With Setjmp/Longjmp based exception handling. |
1436 | AC_ARG_ENABLE(sjlj-exceptions, | |
b88ecf55 AS |
1437 | [AS_HELP_STRING([--enable-sjlj-exceptions], |
1438 | [arrange to use setjmp/longjmp exception handling])], | |
399fe3e1 JDA |
1439 | [case $target in |
1440 | *-*-hpux10*) | |
1441 | if test $enableval != yes; then | |
1442 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1443 | enableval=yes | |
1444 | fi | |
1445 | ;; | |
1446 | esac | |
1447 | force_sjlj_exceptions=yes], | |
1448 | [case $target in | |
1449 | *-*-hpux10*) | |
1450 | force_sjlj_exceptions=yes | |
1451 | enableval=yes | |
1452 | ;; | |
9b0af790 JB |
1453 | lm32*-*-*) |
1454 | force_sjlj_exceptions=yes | |
1455 | enableval=yes | |
1456 | ;; | |
399fe3e1 JDA |
1457 | *) |
1458 | force_sjlj_exceptions=no | |
1459 | ;; | |
1460 | esac]) | |
1461 | if test $force_sjlj_exceptions = yes; then | |
1462 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1463 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1464 | [Define 0/1 to force the choice for exception handling model.]) | |
1465 | fi | |
4977bab6 | 1466 | |
34a86c2b NN |
1467 | # -------------------------------------------------------- |
1468 | # Build, host, and target specific configuration fragments | |
1469 | # -------------------------------------------------------- | |
1470 | ||
5b28c537 | 1471 | # Collect build-machine-specific information. |
2c811fd3 | 1472 | . ${srcdir}/config.build || exit 1 |
5b28c537 | 1473 | |
a89ea0df | 1474 | # Collect host-machine-specific information. |
2c811fd3 | 1475 | . ${srcdir}/config.host || exit 1 |
a89ea0df | 1476 | |
ef69da62 | 1477 | target_gtfiles= |
a89ea0df NN |
1478 | |
1479 | # Collect target-machine-specific information. | |
2c811fd3 | 1480 | . ${srcdir}/config.gcc || exit 1 |
46f18e7b RK |
1481 | |
1482 | extra_objs="${host_extra_objs} ${extra_objs}" | |
30500d84 | 1483 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
46f18e7b RK |
1484 | |
1485 | # Default the target-machine variables that were not explicitly set. | |
75bffa71 | 1486 | if test x"$tm_file" = x |
46f18e7b RK |
1487 | then tm_file=$cpu_type/$cpu_type.h; fi |
1488 | ||
6b2adea9 | 1489 | if test x"$extra_headers" = x |
46f18e7b RK |
1490 | then extra_headers=; fi |
1491 | ||
75bffa71 | 1492 | if test x$md_file = x |
e98e406f | 1493 | then md_file=$cpu_type/$cpu_type.md; fi |
46f18e7b | 1494 | |
75bffa71 | 1495 | if test x$out_file = x |
46f18e7b RK |
1496 | then out_file=$cpu_type/$cpu_type.c; fi |
1497 | ||
75bffa71 | 1498 | if test x"$tmake_file" = x |
46f18e7b RK |
1499 | then tmake_file=$cpu_type/t-$cpu_type |
1500 | fi | |
1501 | ||
e9c9f128 JJ |
1502 | # Support --enable-initfini-array. |
1503 | if test x$enable_initfini_array != xno; then | |
1504 | tm_file="${tm_file} initfini-array.h" | |
1505 | fi | |
1506 | ||
90e6a802 | 1507 | if test x"$dwarf2" = xyes |
756ee602 | 1508 | then tm_file="$tm_file tm-dwarf2.h" |
90e6a802 RL |
1509 | fi |
1510 | ||
46f18e7b | 1511 | # Say what files are being used for the output code and MD file. |
11642c3a | 1512 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
46f18e7b RK |
1513 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1514 | ||
11642c3a | 1515 | # If any of the xm_file variables contain nonexistent files, warn |
4dc0535b ZW |
1516 | # about them and drop them. |
1517 | ||
11642c3a ZW |
1518 | bx= |
1519 | for x in $build_xm_file; do | |
1520 | if test -f $srcdir/config/$x | |
1521 | then bx="$bx $x" | |
11642c3a ZW |
1522 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1523 | fi | |
1524 | done | |
1525 | build_xm_file="$bx" | |
1526 | ||
1527 | hx= | |
1528 | for x in $host_xm_file; do | |
1529 | if test -f $srcdir/config/$x | |
1530 | then hx="$hx $x" | |
11642c3a ZW |
1531 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1532 | fi | |
1533 | done | |
1534 | host_xm_file="$hx" | |
1535 | ||
1536 | tx= | |
1537 | for x in $xm_file; do | |
1538 | if test -f $srcdir/config/$x | |
1539 | then tx="$tx $x" | |
11642c3a ZW |
1540 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1541 | fi | |
1542 | done | |
1543 | xm_file="$tx" | |
1544 | ||
46f18e7b RK |
1545 | count=a |
1546 | for f in $tm_file; do | |
1547 | count=${count}x | |
1548 | done | |
75bffa71 | 1549 | if test $count = ax; then |
46f18e7b RK |
1550 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1551 | else | |
1552 | echo "Using the following target machine macro files:" | |
1553 | for f in $tm_file; do | |
1554 | echo " $srcdir/config/$f" | |
1555 | done | |
1556 | fi | |
1557 | ||
99fa8911 AP |
1558 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1559 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
edf6ddf6 | 1560 | [Define to 1 if the 'long long' type is wider than 'long' but still |
99fa8911 AP |
1561 | efficiently supported by the host hardware.]) |
1562 | fi | |
1563 | ||
b993039f EB |
1564 | gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi` |
1565 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.]) | |
1566 | ||
1567 | gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi` | |
1568 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.]) | |
1569 | ||
46f18e7b RK |
1570 | count=a |
1571 | for f in $host_xm_file; do | |
1572 | count=${count}x | |
1573 | done | |
11642c3a ZW |
1574 | if test $count = a; then |
1575 | : | |
1576 | elif test $count = ax; then | |
46f18e7b RK |
1577 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1578 | else | |
1579 | echo "Using the following host machine macro files:" | |
1580 | for f in $host_xm_file; do | |
1581 | echo " $srcdir/config/$f" | |
1582 | done | |
1583 | fi | |
476d9098 | 1584 | echo "Using ${out_host_hook_obj} for host machine hooks." |
46f18e7b | 1585 | |
75bffa71 | 1586 | if test "$host_xm_file" != "$build_xm_file"; then |
46f18e7b RK |
1587 | count=a |
1588 | for f in $build_xm_file; do | |
1589 | count=${count}x | |
1590 | done | |
11642c3a ZW |
1591 | if test $count = a; then |
1592 | : | |
1593 | elif test $count = ax; then | |
46f18e7b RK |
1594 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1595 | else | |
1596 | echo "Using the following build machine macro files:" | |
1597 | for f in $build_xm_file; do | |
1598 | echo " $srcdir/config/$f" | |
1599 | done | |
1600 | fi | |
1601 | fi | |
1602 | ||
08b2bad2 SB |
1603 | if test -n "$configured_native_system_header_dir"; then |
1604 | native_system_header_dir=$configured_native_system_header_dir | |
1605 | fi | |
1606 | NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir" | |
1607 | AC_SUBST(NATIVE_SYSTEM_HEADER_DIR) | |
1608 | ||
4f6d8cc8 | 1609 | case ${host} in |
b8ec3cc8 | 1610 | powerpc*-*-darwin*) |
4f6d8cc8 GK |
1611 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1612 | gcc_cv_mcontext_underscores, | |
22e05272 | 1613 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
ba7da42a | 1614 | #include <sys/cdefs.h> |
de4fb767 | 1615 | #include <sys/signal.h> |
4f6d8cc8 GK |
1616 | #include <ucontext.h> |
1617 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
22e05272 | 1618 | ])], |
4f6d8cc8 GK |
1619 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) |
1620 | if test $gcc_cv_mcontext_underscores = yes; then | |
1621 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1622 | [mcontext_t fields start with __]) | |
1623 | fi | |
1624 | ;; | |
1625 | esac | |
1626 | ||
8bb915b6 NN |
1627 | # --------- |
1628 | # Threading | |
1629 | # --------- | |
1630 | ||
c2e494a8 | 1631 | # Check if a valid thread package |
615be2cf | 1632 | case ${enable_threads} in |
c2e494a8 NN |
1633 | "" | no) |
1634 | # No threads | |
1635 | target_thread_file='single' | |
1636 | ;; | |
1637 | yes) | |
1638 | # default | |
1639 | target_thread_file='single' | |
1640 | ;; | |
ddaad3c8 | 1641 | aix | dce | lynx | mipssde | posix | rtems | \ |
da90c957 | 1642 | single | tpf | vxworks | win32) |
615be2cf | 1643 | target_thread_file=${enable_threads} |
c2e494a8 NN |
1644 | ;; |
1645 | *) | |
615be2cf | 1646 | echo "${enable_threads} is an unknown thread package" 1>&2 |
c2e494a8 NN |
1647 | exit 1 |
1648 | ;; | |
1649 | esac | |
1650 | ||
1651 | if test x${thread_file} = x; then | |
1652 | # No thread file set by target-specific clauses in config.gcc, | |
1653 | # so use file chosen by default logic above | |
1654 | thread_file=${target_thread_file} | |
46f18e7b | 1655 | fi |
46f18e7b | 1656 | |
8bb915b6 NN |
1657 | # -------- |
1658 | # UNSORTED | |
1659 | # -------- | |
1660 | ||
18fbf599 | 1661 | use_cxa_atexit=no |
2121a768 JT |
1662 | if test x$enable___cxa_atexit = xyes || \ |
1663 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
18fbf599 | 1664 | if test x$host = x$target; then |
97388150 DS |
1665 | case $host in |
1666 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1667 | # keyed to flag_use_cxa_atexit | |
1668 | *-*-mingw32*) | |
1669 | use_cxa_atexit=yes | |
1670 | ;; | |
99113dff DE |
1671 | powerpc-ibm-aix*) |
1672 | use_cxa_atexit=yes | |
1673 | ;; | |
97388150 DS |
1674 | *) |
1675 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1676 | [echo "__cxa_atexit can't be enabled on this target"]) | |
5f60e48f | 1677 | ;; |
97388150 | 1678 | esac |
18fbf599 PB |
1679 | else |
1680 | # We can't check for __cxa_atexit when building a cross, so assume | |
1681 | # it is available | |
1682 | use_cxa_atexit=yes | |
1683 | fi | |
1684 | if test x$use_cxa_atexit = xyes; then | |
c7b5e395 | 1685 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
18fbf599 PB |
1686 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1687 | register C++ destructors for local statics and global objects. | |
1688 | This is essential for fully standards-compliant handling of | |
1689 | destructors, but requires __cxa_atexit in libc.]) | |
1690 | fi | |
2121a768 JT |
1691 | fi |
1692 | ||
a5381466 | 1693 | # Look for a file containing extra machine modes. |
1c0ca89d ZW |
1694 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1695 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
a5381466 | 1696 | AC_SUBST(extra_modes_file) |
e22340b0 | 1697 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
a5381466 ZW |
1698 | [Define to the name of a file containing a list of extra machine modes |
1699 | for this architecture.]) | |
a5381466 ZW |
1700 | fi |
1701 | ||
75685792 RS |
1702 | # Convert extra_options into a form suitable for Makefile use. |
1703 | extra_opt_files= | |
fd438373 | 1704 | all_opt_files= |
75685792 RS |
1705 | for f in $extra_options; do |
1706 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
fd438373 | 1707 | all_opt_files="$all_opt_files $srcdir/config/$f" |
75685792 RS |
1708 | done |
1709 | AC_SUBST(extra_opt_files) | |
1710 | ||
b7cb92ad | 1711 | # auto-host.h is the file containing items generated by autoconf and is |
e9a25f70 | 1712 | # the first file included by config.h. |
4977bab6 | 1713 | # If host=build, it is correct to have bconfig include auto-host.h |
db81d74a RH |
1714 | # as well. If host!=build, we are in error and need to do more |
1715 | # work to find out the build config parameters. | |
75bffa71 | 1716 | if test x$host = x$build |
db81d74a | 1717 | then |
eaf4e618 | 1718 | build_auto=auto-host.h |
b7cb92ad JL |
1719 | else |
1720 | # We create a subdir, then run autoconf in the subdir. | |
1721 | # To prevent recursion we set host and build for the new | |
1722 | # invocation of configure to the build for this invocation | |
1723 | # of configure. | |
1724 | tempdir=build.$$ | |
1725 | rm -rf $tempdir | |
1726 | mkdir $tempdir | |
1727 | cd $tempdir | |
1728 | case ${srcdir} in | |
b86ecfa9 | 1729 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
b7cb92ad JL |
1730 | *) realsrcdir=../${srcdir};; |
1731 | esac | |
2ceb362d AM |
1732 | # Clearing GMPINC is necessary to prevent host headers being |
1733 | # used by the build compiler. Defining GENERATOR_FILE stops | |
1734 | # system.h from including gmp.h. | |
d920e825 | 1735 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ |
2ceb362d AM |
1736 | CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \ |
1737 | LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
1738 | GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \ | |
d920e825 | 1739 | ${realsrcdir}/configure \ |
33e70558 | 1740 | --enable-languages=${enable_languages-all} \ |
534d0cc0 | 1741 | --target=$target_alias --host=$build_alias --build=$build_alias |
b7cb92ad JL |
1742 | |
1743 | # We just finished tests for the build machine, so rename | |
1744 | # the file auto-build.h in the gcc directory. | |
1745 | mv auto-host.h ../auto-build.h | |
1746 | cd .. | |
1747 | rm -rf $tempdir | |
eaf4e618 | 1748 | build_auto=auto-build.h |
db81d74a | 1749 | fi |
71b5d516 | 1750 | AC_SUBST(build_subdir) |
db81d74a | 1751 | |
eaf4e618 | 1752 | tm_file="${tm_file} defaults.h" |
4977bab6 | 1753 | tm_p_file="${tm_p_file} tm-preds.h" |
b4c522fa | 1754 | tm_d_file="${tm_d_file} defaults.h" |
4977bab6 ZW |
1755 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" |
1756 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
49691411 | 1757 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
b4862477 | 1758 | # put this back in temporarily. |
232b67d9 | 1759 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
0056a9b5 | 1760 | |
34a86c2b NN |
1761 | # -------- |
1762 | # UNSORTED | |
1763 | # -------- | |
1764 | ||
afabd8e6 | 1765 | changequote(,)dnl |
cc1e60ea | 1766 | # Compile in configure arguments. |
8105825d | 1767 | if test -f configargs.h ; then |
cc1e60ea | 1768 | # Being re-configured. |
022dae81 | 1769 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
54de7d7d JJ |
1770 | gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'` |
1771 | if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then | |
1772 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1773 | fi | |
cc1e60ea JM |
1774 | else |
1775 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1776 | fi | |
eeae7b41 DJ |
1777 | |
1778 | # Double all backslashes and backslash all quotes to turn | |
1779 | # gcc_config_arguments into a C string. | |
1780 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1781 | $gcc_config_arguments | |
1782 | EOF | |
1783 | gcc_config_arguments_str=`cat conftest.out` | |
1784 | rm -f conftest.out | |
1785 | ||
cc1e60ea JM |
1786 | cat > configargs.h <<EOF |
1787 | /* Generated automatically. */ | |
eeae7b41 | 1788 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
a6687d2b | 1789 | static const char thread_model[] = "$thread_file"; |
7816bea0 DJ |
1790 | |
1791 | static const struct { | |
1792 | const char *name, *value; | |
1793 | } configure_default_options[] = $configure_default_options; | |
cc1e60ea | 1794 | EOF |
75bffa71 | 1795 | changequote([,])dnl |
46f18e7b | 1796 | |
0c463e16 | 1797 | changequote(,)dnl |
40540e68 RAE |
1798 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1799 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1800 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
0c463e16 | 1801 | if test -f $srcdir/REVISION ; then |
40540e68 | 1802 | gcc_REVISION=`cat $srcdir/REVISION` |
0c463e16 RAE |
1803 | else |
1804 | gcc_REVISION="" | |
1805 | fi | |
1806 | cat > plugin-version.h <<EOF | |
1807 | #include "configargs.h" | |
1808 | ||
bf588455 BS |
1809 | #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'` |
1810 | #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'` | |
1811 | #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'` | |
1812 | #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR) | |
1813 | ||
0c463e16 RAE |
1814 | static char basever[] = "$gcc_BASEVER"; |
1815 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1816 | static char devphase[] = "$gcc_DEVPHASE"; | |
1817 | static char revision[] = "$gcc_REVISION"; | |
1818 | ||
1819 | /* FIXME plugins: We should make the version information more precise. | |
1820 | One way to do is to add a checksum. */ | |
1821 | ||
1822 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1823 | devphase, revision, | |
1824 | configuration_arguments}; | |
1825 | EOF | |
1826 | changequote([,])dnl | |
1827 | ||
3c36aa6b JJ |
1828 | # Determine what GCC version number to use in filesystem paths. |
1829 | GCC_BASE_VER | |
1830 | ||
ab87f8c8 | 1831 | # Internationalization |
56694dd9 | 1832 | ZW_GNU_GETTEXT_SISTER_DIR |
dc6746e7 | 1833 | |
56694dd9 ZW |
1834 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1835 | # -liconv on the link line twice. | |
1836 | case "$LIBINTL" in *$LIBICONV*) | |
1837 | LIBICONV= ;; | |
1838 | esac | |
ab87f8c8 | 1839 | |
7f970b70 | 1840 | AC_ARG_ENABLE(secureplt, |
b88ecf55 AS |
1841 | [AS_HELP_STRING([--enable-secureplt], |
1842 | [enable -msecure-plt by default for PowerPC])], | |
7f970b70 AM |
1843 | [], []) |
1844 | ||
446163e2 TP |
1845 | AC_ARG_ENABLE(mingw-wildcard, |
1846 | [AS_HELP_STRING([--enable-mingw-wildcard], | |
1847 | [Set whether to expand wildcard on command-line. | |
1848 | Default to platform configuration])], | |
1849 | [],[enable_mingw_wildcard=platform]) | |
1850 | AS_IF([test x"$enable_mingw_wildcard" != xplatform ], | |
1851 | [AC_DEFINE_UNQUOTED(MINGW_DOWILDCARD, | |
1852 | $(test x"$enable_mingw_wildcard" = xno; echo $?), | |
1853 | [Value to set mingw's _dowildcard to.])]) | |
1854 | ||
67aeaded AO |
1855 | AC_ARG_ENABLE(large-address-aware, |
1856 | [AS_HELP_STRING([--enable-large-address-aware], | |
1857 | [Link mingw executables with --large-address-aware])]) | |
1858 | AS_IF([test x"$enable_large_address_aware" = xyes], | |
1859 | [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1, | |
1860 | [Define if we should link mingw executables with --large-address-aware])]) | |
1861 | ||
ad211091 KT |
1862 | AC_ARG_ENABLE(leading-mingw64-underscores, |
1863 | AS_HELP_STRING([--enable-leading-mingw64-underscores], | |
b88ecf55 | 1864 | [enable leading underscores on 64 bit mingw targets]), |
ad211091 KT |
1865 | [],[]) |
1866 | AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ], | |
1867 | [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1, | |
1868 | [Define if we should use leading underscore on 64 bit mingw targets])]) | |
1869 | ||
922e3e33 | 1870 | AC_ARG_ENABLE(cld, |
b88ecf55 | 1871 | [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [], |
922e3e33 UB |
1872 | [enable_cld=no]) |
1873 | ||
d79389af | 1874 | AC_ARG_ENABLE(frame-pointer, |
b88ecf55 AS |
1875 | [AS_HELP_STRING([--enable-frame-pointer], |
1876 | [enable -fno-omit-frame-pointer by default for 32bit x86])], [], | |
d79389af L |
1877 | [ |
1878 | case $target_os in | |
1b2d4118 JH |
1879 | linux* | darwin[[8912]]*) |
1880 | # Enable -fomit-frame-pointer by default for Linux and Darwin with | |
1881 | # DWARF2. | |
d79389af L |
1882 | enable_frame_pointer=no |
1883 | ;; | |
1884 | *) | |
1885 | enable_frame_pointer=yes | |
1886 | ;; | |
1887 | esac | |
1888 | ]) | |
1889 | ||
f4ab28e3 MK |
1890 | # Windows32 Registry support for specifying GCC installation paths. |
1891 | AC_ARG_ENABLE(win32-registry, | |
b88ecf55 AS |
1892 | [AS_HELP_STRING([--disable-win32-registry], |
1893 | [disable lookup of installation paths in the | |
1894 | Registry on Windows hosts]) | |
1895 | AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)]) | |
1896 | AS_HELP_STRING([--enable-win32-registry=KEY], | |
1897 | [use KEY instead of GCC version as the last portion | |
1898 | of the registry key])],,) | |
a1286ef5 | 1899 | |
4e70264f | 1900 | case $host_os in |
abe64d9e | 1901 | win32 | pe | cygwin* | mingw32*) |
a1286ef5 ZW |
1902 | if test "x$enable_win32_registry" != xno; then |
1903 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1904 | fi | |
f4ab28e3 | 1905 | |
a1286ef5 ZW |
1906 | if test "x$enable_win32_registry" != xno; then |
1907 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1908 | [Define to 1 if installation paths should be looked up in the Windows | |
1909 | Registry. Ignored on non-Windows hosts.]) | |
1910 | ||
1911 | if test "x$enable_win32_registry" != xyes \ | |
1912 | && test "x$enable_win32_registry" != x; then | |
1913 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1914 | [Define to be the last component of the Windows registry key under which | |
1915 | to look for installation paths. The full key used will be | |
1916 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1917 | The default is the GCC version number.]) | |
1918 | fi | |
1919 | fi | |
f4ab28e3 MK |
1920 | ;; |
1921 | esac | |
1922 | ||
7fa10b25 | 1923 | # Get an absolute path to the GCC top-level source directory |
1e6347d8 | 1924 | holddir=`${PWDCMD-pwd}` |
7fa10b25 | 1925 | cd $srcdir |
1e6347d8 | 1926 | topdir=`${PWDCMD-pwd}` |
7fa10b25 RK |
1927 | cd $holddir |
1928 | ||
af5e4ada | 1929 | # Conditionalize the makefile for this host machine. |
2ed26f6b | 1930 | xmake_file= |
c406e779 | 1931 | for f in ${host_xmake_file} |
94f42018 | 1932 | do |
75bffa71 | 1933 | if test -f ${srcdir}/config/$f |
94f42018 | 1934 | then |
2ed26f6b | 1935 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
94f42018 DE |
1936 | fi |
1937 | done | |
46f18e7b | 1938 | |
af5e4ada | 1939 | # Conditionalize the makefile for this target machine. |
2ed26f6b | 1940 | tmake_file_= |
c406e779 | 1941 | for f in ${tmake_file} |
94f42018 | 1942 | do |
75bffa71 | 1943 | if test -f ${srcdir}/config/$f |
94f42018 | 1944 | then |
2ed26f6b | 1945 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
94f42018 DE |
1946 | fi |
1947 | done | |
2ed26f6b | 1948 | tmake_file="${tmake_file_}" |
5891b37d | 1949 | |
af5e4ada | 1950 | out_object_file=`basename $out_file .c`.o |
c49a6962 | 1951 | common_out_object_file=`basename $common_out_file .c`.o |
5891b37d | 1952 | |
75685792 | 1953 | tm_file_list="options.h" |
f938f60c | 1954 | tm_include_list="options.h insn-constants.h" |
af5e4ada | 1955 | for f in $tm_file; do |
64ccbc99 | 1956 | case $f in |
3ca43df7 RS |
1957 | ./* ) |
1958 | f=`echo $f | sed 's/^..//'` | |
1959 | tm_file_list="${tm_file_list} $f" | |
1960 | tm_include_list="${tm_include_list} $f" | |
1961 | ;; | |
d02af173 | 1962 | defaults.h ) |
e22340b0 ZW |
1963 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
1964 | tm_include_list="${tm_include_list} $f" | |
1965 | ;; | |
1966 | * ) | |
1967 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1968 | tm_include_list="${tm_include_list} config/$f" | |
1969 | ;; | |
64ccbc99 | 1970 | esac |
af5e4ada | 1971 | done |
46f18e7b | 1972 | |
11642c3a | 1973 | tm_p_file_list= |
e22340b0 | 1974 | tm_p_include_list= |
11642c3a | 1975 | for f in $tm_p_file; do |
4977bab6 ZW |
1976 | case $f in |
1977 | tm-preds.h ) | |
e22340b0 ZW |
1978 | tm_p_file_list="${tm_p_file_list} $f" |
1979 | tm_p_include_list="${tm_p_include_list} $f" | |
1980 | ;; | |
1981 | * ) | |
1982 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1983 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1984 | esac | |
1985 | done | |
1986 | ||
b4c522fa IB |
1987 | tm_d_file_list= |
1988 | tm_d_include_list="options.h insn-constants.h" | |
1989 | for f in $tm_d_file; do | |
1990 | case $f in | |
1991 | defaults.h ) | |
1992 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f" | |
1993 | tm_d_include_list="${tm_d_include_list} $f" | |
1994 | ;; | |
1995 | * ) | |
1996 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f" | |
1997 | tm_d_include_list="${tm_d_include_list} config/$f" | |
1998 | ;; | |
1999 | esac | |
2000 | done | |
2001 | ||
e22340b0 ZW |
2002 | xm_file_list= |
2003 | xm_include_list= | |
2004 | for f in $xm_file; do | |
2005 | case $f in | |
2006 | ansidecl.h ) | |
2007 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
2008 | xm_include_list="${xm_include_list} $f" | |
2009 | ;; | |
2010 | auto-host.h ) | |
2011 | xm_file_list="${xm_file_list} $f" | |
2012 | xm_include_list="${xm_include_list} $f" | |
2013 | ;; | |
2014 | * ) | |
2015 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
2016 | xm_include_list="${xm_include_list} config/$f" | |
2017 | ;; | |
4977bab6 | 2018 | esac |
11642c3a ZW |
2019 | done |
2020 | ||
af5e4ada | 2021 | host_xm_file_list= |
e22340b0 | 2022 | host_xm_include_list= |
af5e4ada | 2023 | for f in $host_xm_file; do |
64ccbc99 | 2024 | case $f in |
d02af173 | 2025 | ansidecl.h ) |
e22340b0 ZW |
2026 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
2027 | host_xm_include_list="${host_xm_include_list} $f" | |
2028 | ;; | |
e2500fed | 2029 | auto-host.h ) |
e22340b0 ZW |
2030 | host_xm_file_list="${host_xm_file_list} $f" |
2031 | host_xm_include_list="${host_xm_include_list} $f" | |
2032 | ;; | |
2033 | * ) | |
2034 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
2035 | host_xm_include_list="${host_xm_include_list} config/$f" | |
2036 | ;; | |
64ccbc99 | 2037 | esac |
af5e4ada DE |
2038 | done |
2039 | ||
2040 | build_xm_file_list= | |
2041 | for f in $build_xm_file; do | |
64ccbc99 | 2042 | case $f in |
d02af173 | 2043 | ansidecl.h ) |
e22340b0 ZW |
2044 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
2045 | build_xm_include_list="${build_xm_include_list} $f" | |
2046 | ;; | |
e2500fed | 2047 | auto-build.h | auto-host.h ) |
e22340b0 ZW |
2048 | build_xm_file_list="${build_xm_file_list} $f" |
2049 | build_xm_include_list="${build_xm_include_list} $f" | |
2050 | ;; | |
2051 | * ) | |
2052 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
2053 | build_xm_include_list="${build_xm_include_list} config/$f" | |
2054 | ;; | |
64ccbc99 | 2055 | esac |
af5e4ada | 2056 | done |
46f18e7b | 2057 | |
2989d30c GK |
2058 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
2059 | # cross-compiler which does not use the native headers and libraries. | |
a078a589 ZW |
2060 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
2061 | CROSS= AC_SUBST(CROSS) | |
2062 | ALL=all.internal AC_SUBST(ALL) | |
2063 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
0c90d48b | 2064 | BUILD_SYSTEM_HEADER_DIR=$SYSTEM_HEADER_DIR AC_SUBST(BUILD_SYSTEM_HEADER_DIR) |
b28250ab | 2065 | |
0c90d48b BE |
2066 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x || |
2067 | test x$build != x$host || test "x$with_build_sysroot" != x; then | |
2068 | if test "x$with_build_sysroot" != x; then | |
2069 | BUILD_SYSTEM_HEADER_DIR=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
2070 | else | |
2071 | BUILD_SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2072 | fi | |
b28250ab | 2073 | |
0c90d48b BE |
2074 | if test x$host != x$target |
2075 | then | |
2076 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
2077 | ALL=all.cross | |
2078 | SYSTEM_HEADER_DIR=$BUILD_SYSTEM_HEADER_DIR | |
2079 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
2080 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2081 | fi | |
46f18e7b | 2082 | |
0c90d48b BE |
2083 | if test "x$with_build_sysroot" != "x"; then |
2084 | target_header_dir="${with_build_sysroot}${native_system_header_dir}" | |
7d7d00ba HPN |
2085 | elif test "x$with_sysroot" = x; then |
2086 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include" | |
7d7d00ba HPN |
2087 | elif test "x$with_sysroot" = xyes; then |
2088 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}" | |
2089 | else | |
2090 | target_header_dir="${with_sysroot}${native_system_header_dir}" | |
2091 | fi | |
2092 | else | |
2093 | target_header_dir=${native_system_header_dir} | |
2094 | fi | |
2095 | ||
b39d221a EC |
2096 | # If this is a cross-compiler that does not |
2097 | # have its own set of headers then define | |
2098 | # inhibit_libc | |
2099 | ||
dc06db20 R |
2100 | # If this is using newlib, without having the headers available now, |
2101 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
fecd6201 ZW |
2102 | # This prevents libgcc2 from containing any code which requires libc |
2103 | # support. | |
a929bc28 | 2104 | : ${inhibit_libc=false} |
dc06db20 R |
2105 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
2106 | test x$with_newlib = xyes ; } && | |
7d7d00ba | 2107 | { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then |
160633c6 | 2108 | inhibit_libc=true |
b39d221a EC |
2109 | fi |
2110 | AC_SUBST(inhibit_libc) | |
2111 | ||
a078a589 ZW |
2112 | # When building gcc with a cross-compiler, we need to adjust things so |
2113 | # that the generator programs are still built with the native compiler. | |
52c0e446 | 2114 | # Also, we cannot run fixincludes. |
a078a589 ZW |
2115 | |
2116 | # These are the normal (build=host) settings: | |
eaf9f3b2 | 2117 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
bdd5dc28 | 2118 | CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) |
4977bab6 | 2119 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
bdd5dc28 | 2120 | BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) |
f8c33439 | 2121 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
a078a589 | 2122 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
587dc9c6 | 2123 | |
5148d2e3 L |
2124 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS) |
2125 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG) | |
2126 | ||
83599948 NS |
2127 | # And these apply if build != host, or we are generating coverage data |
2128 | if test x$build != x$host || test "x$coverage_flags" != x | |
af5e4ada | 2129 | then |
b11e4747 | 2130 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
c012dc48 | 2131 | BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)' |
f8c33439 | 2132 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
5148d2e3 L |
2133 | |
2134 | NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}} | |
2135 | NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}} | |
2136 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)' | |
2137 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)' | |
af5e4ada | 2138 | fi |
5148d2e3 L |
2139 | AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD) |
2140 | AC_SUBST(NO_PIE_FLAG_FOR_BUILD) | |
46f18e7b | 2141 | |
ae3a15bb DE |
2142 | # Expand extra_headers to include complete path. |
2143 | # This substitutes for lots of t-* files. | |
2144 | extra_headers_list= | |
b1ef58c8 NN |
2145 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
2146 | for file in ${extra_headers} ; do | |
2147 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
2148 | done | |
ae3a15bb | 2149 | |
1617e5ee GK |
2150 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
2151 | if test x"$use_gcc_tgmath" = xyes | |
2152 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
2153 | fi | |
2154 | ||
c38f02df ILT |
2155 | # Define collect2 in Makefile. |
2156 | case $host_can_use_collect2 in | |
2157 | no) collect2= ;; | |
2158 | *) collect2='collect2$(exeext)' ;; | |
2159 | esac | |
2160 | AC_SUBST([collect2]) | |
2161 | ||
af5e4ada | 2162 | # Add a definition of USE_COLLECT2 if system wants one. |
34a86c2b NN |
2163 | case $use_collect2 in |
2164 | no) use_collect2= ;; | |
2165 | "") ;; | |
2166 | *) | |
2167 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
2168 | xm_defines="${xm_defines} USE_COLLECT2" | |
c38f02df ILT |
2169 | case $host_can_use_collect2 in |
2170 | no) | |
2171 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
2172 | ;; | |
2173 | esac | |
34a86c2b NN |
2174 | ;; |
2175 | esac | |
af5e4ada | 2176 | |
1cd0b716 DK |
2177 | AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", |
2178 | [Define to the name of the LTO plugin DSO that must be | |
2179 | passed to the linker's -plugin=LIB option.]) | |
2180 | ||
630327c3 NN |
2181 | # --------------------------- |
2182 | # Assembler & linker features | |
2183 | # --------------------------- | |
2184 | ||
da0f6381 PB |
2185 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
2186 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
2187 | # However when ld-new is first executed from the build tree, libtool will | |
2188 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
2189 | # to the build tree. While doing this we need to use the previous-stage | |
2190 | # linker, or we have an infinite loop. The presence of a shell script as | |
2191 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
2192 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
2193 | # exec-tool will fail. | |
2194 | ||
2195 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
2196 | AC_PROG_LIBTOOL | |
2197 | AC_SUBST(objdir) | |
2198 | AC_SUBST(enable_fast_install) | |
2199 | ||
d869a8c4 NN |
2200 | # Identify the assembler which will work hand-in-glove with the newly |
2201 | # built GCC, so that we can examine its features. This is the assembler | |
2202 | # which will be driven by the driver program. | |
2203 | # | |
2204 | # If build != host, and we aren't building gas in-tree, we identify a | |
2205 | # build->target assembler and hope that it will have the same features | |
2206 | # as the host->target assembler we'll be using. | |
981d4858 JM |
2207 | gcc_cv_gas_major_version= |
2208 | gcc_cv_gas_minor_version= | |
a2f319ea | 2209 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
e8b05380 PB |
2210 | |
2211 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
2212 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
3ccc3a56 AO |
2213 | if test -x "$DEFAULT_ASSEMBLER"; then |
2214 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
6b1786aa | 2215 | elif test -f $gcc_cv_as_gas_srcdir/configure.ac \ |
08d105fa AO |
2216 | && test -f ../gas/Makefile \ |
2217 | && test x$build = x$host; then | |
e8b05380 PB |
2218 | gcc_cv_as=../gas/as-new$build_exeext |
2219 | elif test -x as$build_exeext; then | |
2220 | # Build using assembler in the current directory. | |
2221 | gcc_cv_as=./as$build_exeext | |
4a150fc8 | 2222 | elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2223 | gcc_cv_as="$AS_FOR_TARGET" |
2224 | else | |
2225 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
2226 | fi]) | |
2227 | ||
2228 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
2229 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
be0fe523 PB |
2230 | case "$ORIGINAL_AS_FOR_TARGET" in |
2231 | ./as | ./as$build_exeext) ;; | |
2232 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
2233 | esac | |
e8b05380 PB |
2234 | |
2235 | AC_MSG_CHECKING(what assembler to use) | |
2236 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
08d105fa AO |
2237 | # Single tree build which includes gas. We want to prefer it |
2238 | # over whatever linker top-level may have detected, since | |
2239 | # we'll use what we're building after installation anyway. | |
e8b05380 | 2240 | AC_MSG_RESULT(newly built gas) |
ad9c4d9f NN |
2241 | in_tree_gas=yes |
2242 | _gcc_COMPUTE_GAS_VERSION | |
5408ac6c HPN |
2243 | in_tree_gas_is_elf=no |
2244 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
2245 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
2246 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
2247 | then | |
2248 | in_tree_gas_is_elf=yes | |
2249 | fi | |
e8b05380 PB |
2250 | else |
2251 | AC_MSG_RESULT($gcc_cv_as) | |
2252 | in_tree_gas=no | |
981d4858 JM |
2253 | fi |
2254 | ||
40f213e6 L |
2255 | default_ld= |
2256 | AC_ARG_ENABLE(ld, | |
2257 | [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], | |
2258 | [case "${enableval}" in | |
2259 | no) | |
2260 | default_ld=ld.gold | |
2261 | ;; | |
2262 | esac]) | |
2263 | ||
95204cd5 | 2264 | install_gold_as_default=no |
40f213e6 L |
2265 | AC_ARG_ENABLE(gold, |
2266 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], | |
2267 | [case "${enableval}" in | |
2268 | default) | |
2269 | install_gold_as_default=yes | |
2270 | ;; | |
2271 | yes) | |
2272 | if test x${default_ld} != x; then | |
2273 | install_gold_as_default=yes | |
2274 | fi | |
2275 | ;; | |
2276 | no) | |
2277 | ;; | |
2278 | *) | |
2279 | AC_MSG_ERROR([invalid --enable-gold argument]) | |
2280 | ;; | |
95204cd5 | 2281 | esac]) |
40f213e6 | 2282 | |
d869a8c4 NN |
2283 | # Identify the linker which will work hand-in-glove with the newly |
2284 | # built GCC, so that we can examine its features. This is the linker | |
2285 | # which will be driven by the driver program. | |
2286 | # | |
2287 | # If build != host, and we aren't building gas in-tree, we identify a | |
2288 | # build->target linker and hope that it will have the same features | |
2289 | # as the host->target linker we'll be using. | |
275b60d6 JJ |
2290 | gcc_cv_gld_major_version= |
2291 | gcc_cv_gld_minor_version= | |
2292 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
40f213e6 | 2293 | gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold |
275b60d6 | 2294 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd |
e8b05380 PB |
2295 | |
2296 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
275b60d6 JJ |
2297 | if test -x "$DEFAULT_LINKER"; then |
2298 | gcc_cv_ld="$DEFAULT_LINKER" | |
40f213e6 L |
2299 | elif test $install_gold_as_default = yes \ |
2300 | && test -f $gcc_cv_ld_gold_srcdir/configure.ac \ | |
2301 | && test -f ../gold/Makefile \ | |
2302 | && test x$build = x$host; then | |
2303 | gcc_cv_ld=../gold/ld-new$build_exeext | |
6b1786aa | 2304 | elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \ |
08d105fa AO |
2305 | && test -f ../ld/Makefile \ |
2306 | && test x$build = x$host; then | |
e8b05380 PB |
2307 | gcc_cv_ld=../ld/ld-new$build_exeext |
2308 | elif test -x collect-ld$build_exeext; then | |
2309 | # Build using linker in the current directory. | |
2310 | gcc_cv_ld=./collect-ld$build_exeext | |
4a150fc8 | 2311 | elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2312 | gcc_cv_ld="$LD_FOR_TARGET" |
2313 | else | |
2314 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
2315 | fi]) | |
2316 | ||
5938f74d | 2317 | ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld |
36d21883 | 2318 | PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"` |
01a88d35 AP |
2319 | # if the PLUGIN_LD is set ld-new, just have it as ld |
2320 | # as that is the installed named. | |
3cecbdfa TS |
2321 | if test x$PLUGIN_LD_SUFFIX = xld-new \ |
2322 | || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then | |
01a88d35 AP |
2323 | PLUGIN_LD_SUFFIX=ld |
2324 | fi | |
5938f74d | 2325 | AC_ARG_WITH(plugin-ld, |
b88ecf55 | 2326 | [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])], |
5938f74d L |
2327 | [if test x"$withval" != x; then |
2328 | ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" | |
bcefc344 | 2329 | PLUGIN_LD_SUFFIX="$withval" |
5938f74d L |
2330 | fi]) |
2331 | AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) | |
36d21883 | 2332 | AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker]) |
5938f74d | 2333 | |
1dcc82c2 DK |
2334 | # Check to see if we are using gold instead of ld |
2335 | AC_MSG_CHECKING(whether we are using gold) | |
2336 | ld_is_gold=no | |
2337 | if test x$gcc_cv_ld != x; then | |
2338 | if $gcc_cv_ld --version 2>/dev/null | sed 1q \ | |
2339 | | grep "GNU gold" > /dev/null; then | |
2340 | ld_is_gold=yes | |
2341 | fi | |
2342 | fi | |
2343 | AC_MSG_RESULT($ld_is_gold) | |
2344 | ||
402565b6 LB |
2345 | AC_MSG_CHECKING(gold linker with split stack support as non default) |
2346 | # Check to see if default ld is not gold, but gold is | |
2347 | # available and has support for split stack. If gcc was configured | |
2348 | # with gold then no checking is done. | |
2349 | # | |
2350 | if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then | |
2351 | ||
2352 | # For platforms other than powerpc64*, enable as appropriate. | |
2353 | ||
2354 | gold_non_default=no | |
2355 | ld_gold=`which ${gcc_cv_ld}.gold` | |
2356 | # Make sure this gold has minimal split stack support | |
2357 | if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
2358 | ld_vers=`$ld_gold --version | sed 1q` | |
2359 | gold_vers=`echo $ld_vers | sed -n \ | |
2360 | -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'` | |
2361 | case $target in | |
2362 | # check that the gold version contains the complete split stack support | |
2363 | # on powerpc64 big and little endian | |
2364 | powerpc64*-*-*) | |
2365 | case "$gold_vers" in | |
2366 | 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes | |
2367 | ;; | |
2368 | *) gold_non_default=no | |
2369 | ;; | |
2370 | esac | |
2371 | ;; | |
2372 | esac | |
2373 | fi | |
2374 | if test $gold_non_default = yes; then | |
2375 | AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1, | |
2376 | [Define if the gold linker supports split stack and is available as a non-default]) | |
2377 | fi | |
2378 | fi | |
2379 | AC_MSG_RESULT($gold_non_default) | |
2380 | ||
e8b05380 PB |
2381 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld |
2382 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
be0fe523 PB |
2383 | case "$ORIGINAL_LD_FOR_TARGET" in |
2384 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
2385 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
2386 | esac | |
e8b05380 PB |
2387 | |
2388 | AC_MSG_CHECKING(what linker to use) | |
55b46574 RO |
2389 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \ |
2390 | || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then | |
08d105fa AO |
2391 | # Single tree build which includes ld. We want to prefer it |
2392 | # over whatever linker top-level may have detected, since | |
2393 | # we'll use what we're building after installation anyway. | |
e8b05380 | 2394 | AC_MSG_RESULT(newly built ld) |
34a86c2b | 2395 | in_tree_ld=yes |
5408ac6c HPN |
2396 | in_tree_ld_is_elf=no |
2397 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
8a45d680 AN |
2398 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
2399 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
5408ac6c | 2400 | in_tree_ld_is_elf=yes |
55b46574 RO |
2401 | elif test "$ld_is_gold" = yes; then |
2402 | in_tree_ld_is_elf=yes | |
5408ac6c | 2403 | fi |
6b1786aa | 2404 | 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 |
2405 | do |
2406 | changequote(,)dnl | |
81179208 | 2407 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f` |
275b60d6 JJ |
2408 | if test x$gcc_cv_gld_version != x; then |
2409 | break | |
2410 | fi | |
2411 | done | |
81179208 HPN |
2412 | case $gcc_cv_gld_version in |
2413 | VERSION=[0-9]*) ;; | |
2414 | changequote([,])dnl | |
2415 | *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;; | |
2416 | changequote(,)dnl | |
2417 | esac | |
275b60d6 JJ |
2418 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
2419 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
2420 | changequote([,])dnl | |
40f213e6 L |
2421 | ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext |
2422 | ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext | |
e8b05380 PB |
2423 | else |
2424 | AC_MSG_RESULT($gcc_cv_ld) | |
2425 | in_tree_ld=no | |
40f213e6 L |
2426 | gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext` |
2427 | ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext | |
2428 | ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext | |
275b60d6 JJ |
2429 | fi |
2430 | ||
40f213e6 L |
2431 | AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET) |
2432 | AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET) | |
2433 | ||
981d4858 | 2434 | # Figure out what nm we will be using. |
f9c1196a | 2435 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
e8b05380 | 2436 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
6b1786aa | 2437 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2438 | && test -f ../binutils/Makefile \ |
2439 | && test x$build = x$host; then | |
9f18db39 PB |
2440 | gcc_cv_nm=../binutils/nm-new$build_exeext |
2441 | elif test -x nm$build_exeext; then | |
57991eba | 2442 | gcc_cv_nm=./nm$build_exeext |
4a150fc8 | 2443 | elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2444 | gcc_cv_nm="$NM_FOR_TARGET" |
2445 | else | |
2446 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
2447 | fi]) | |
9f18db39 | 2448 | |
9f18db39 | 2449 | AC_MSG_CHECKING(what nm to use) |
e8b05380 PB |
2450 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
2451 | # Single tree build which includes binutils. | |
2452 | AC_MSG_RESULT(newly built nm) | |
2453 | in_tree_nm=yes | |
2454 | else | |
2455 | AC_MSG_RESULT($gcc_cv_nm) | |
2456 | in_tree_nm=no | |
2457 | fi | |
2458 | ||
2459 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
2460 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
be0fe523 PB |
2461 | case "$ORIGINAL_NM_FOR_TARGET" in |
2462 | ./nm | ./nm$build_exeext) ;; | |
2463 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
2464 | esac | |
2465 | ||
981d4858 | 2466 | |
3cae5780 | 2467 | # Figure out what objdump we will be using. |
e8b05380 | 2468 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
6b1786aa | 2469 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
c15b113b DD |
2470 | && test -f ../binutils/Makefile \ |
2471 | && test x$build = x$host; then | |
f9c1196a | 2472 | # Single tree build which includes binutils. |
9f18db39 | 2473 | gcc_cv_objdump=../binutils/objdump$build_exeext |
d739199a DJ |
2474 | elif test -x objdump$build_exeext; then |
2475 | gcc_cv_objdump=./objdump$build_exeext | |
4a150fc8 | 2476 | elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then |
e8b05380 PB |
2477 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" |
2478 | else | |
2479 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2480 | fi]) | |
d739199a | 2481 | |
d739199a | 2482 | AC_MSG_CHECKING(what objdump to use) |
e8b05380 PB |
2483 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2484 | # Single tree build which includes binutils. | |
2485 | AC_MSG_RESULT(newly built objdump) | |
2486 | elif test x$gcc_cv_objdump = x; then | |
2487 | AC_MSG_RESULT(not found) | |
2488 | else | |
2489 | AC_MSG_RESULT($gcc_cv_objdump) | |
2490 | fi | |
3cae5780 | 2491 | |
6e97481b JJ |
2492 | # Figure out what readelf we will be using. |
2493 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
6b1786aa | 2494 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
6e97481b JJ |
2495 | && test -f ../binutils/Makefile \ |
2496 | && test x$build = x$host; then | |
2497 | # Single tree build which includes binutils. | |
2498 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2499 | elif test -x readelf$build_exeext; then | |
2500 | gcc_cv_readelf=./readelf$build_exeext | |
32a18c8c L |
2501 | elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then |
2502 | gcc_cv_readelf="$READELF_FOR_TARGET" | |
6e97481b | 2503 | else |
32a18c8c | 2504 | AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET) |
6e97481b JJ |
2505 | fi]) |
2506 | ||
2507 | AC_MSG_CHECKING(what readelf to use) | |
2508 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2509 | # Single tree build which includes binutils. | |
2510 | AC_MSG_RESULT(newly built readelf) | |
2511 | elif test x$gcc_cv_readelf = x; then | |
2512 | AC_MSG_RESULT(not found) | |
2513 | else | |
2514 | AC_MSG_RESULT($gcc_cv_readelf) | |
2515 | fi | |
2516 | ||
981d4858 | 2517 | # Figure out what assembler alignment features are present. |
8ada417f ZW |
2518 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2519 | [2,6,0],, | |
2520 | [.balign 4 | |
2521 | .p2align 2],, | |
2522 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2523 | [Define if your assembler supports .balign and .p2align.])]) | |
2524 | ||
2525 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2526 | [2,8,0],, | |
2527 | [.p2align 4,,7],, | |
2528 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2529 | [Define if your assembler supports specifying the maximum number | |
2530 | of bytes to skip when using the GAS .p2align command.])]) | |
2531 | ||
5708d18d MS |
2532 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2533 | [2,8,0],, | |
2534 | [.literal16],, | |
2535 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2536 | [Define if your assembler supports .literal16.])]) | |
2537 | ||
8ada417f ZW |
2538 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2539 | [elf,2,9,0],, | |
2540 | [conftest_label1: .word 0 | |
d1accaa3 JJ |
2541 | .subsection -1 |
2542 | conftest_label2: .word 0 | |
8ada417f ZW |
2543 | .previous], |
2544 | [if test x$gcc_cv_nm != x; then | |
2545 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2546 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2547 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2548 | then : | |
2549 | else gcc_cv_as_subsection_m1=yes | |
2550 | fi | |
2551 | rm -f conftest.nm1 conftest.nm2 | |
2552 | fi], | |
2553 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2554 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2555 | emitting at the beginning of your section.])]) | |
2556 | ||
2557 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2558 | [2,2,0],, | |
2559 | [ .weak foobar],, | |
2560 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2561 | ||
a0203ca7 AO |
2562 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2563 | [2,17,0],, | |
2564 | [ .weakref foobar, barfnot],, | |
2565 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2566 | ||
e41f3691 JDA |
2567 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2568 | [2,15,91],, | |
2569 | [ .SPACE $TEXT$ | |
2570 | .NSUBSPA $CODE$,COMDAT],, | |
2571 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2572 | ||
8ada417f ZW |
2573 | # .hidden needs to be supported in both the assembler and the linker, |
2574 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2575 | # This is irritatingly difficult to feature test for; we have to check the | |
2576 | # date string after the version number. If we've got an in-tree | |
2577 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2578 | # to be safe. | |
2579 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
8d91472f DE |
2580 | case "${target}" in |
2581 | *-*-aix*) | |
2582 | conftest_s=' .globl foobar,hidden' | |
2583 | ;; | |
2584 | *) | |
2585 | conftest_s=' .hidden foobar | |
2586 | foobar:' | |
2587 | ;; | |
2588 | esac | |
8ada417f | 2589 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, |
8d91472f | 2590 | [elf,2,13,0],, [$conftest_s]) |
ee610fcd RO |
2591 | case "${target}" in |
2592 | *-*-darwin*) | |
2593 | # Darwin as has some visibility support, though with a different syntax. | |
2594 | gcc_cv_as_hidden=yes | |
2595 | ;; | |
2596 | esac | |
8ada417f | 2597 | |
ba885ec5 NS |
2598 | # gnu_indirect_function type is an extension proposed at |
2599 | # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime | |
2600 | # selection of function implementation | |
f6c5fbfd NS |
2601 | AC_ARG_ENABLE(gnu-indirect-function, |
2602 | [AS_HELP_STRING([--enable-gnu-indirect-function], | |
2603 | [enable the use of the @gnu_indirect_function to glibc systems])], | |
2604 | [case $enable_gnu_indirect_function in | |
2605 | yes | no) ;; | |
2606 | *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function. | |
2607 | Valid choices are 'yes' and 'no'.]) ;; | |
2608 | esac], | |
2609 | [enable_gnu_indirect_function="$default_gnu_indirect_function"]) | |
2f251a05 AI |
2610 | |
2611 | gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi` | |
2612 | AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif, | |
2613 | [Define if your system supports gnu indirect functions.]) | |
2614 | ||
ba885ec5 | 2615 | |
10ca6198 JJ |
2616 | changequote(,)dnl |
2617 | if test $in_tree_ld != yes ; then | |
2618 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
55b46574 RO |
2619 | if echo "$ld_ver" | grep GNU > /dev/null; then |
2620 | if test x"$ld_is_gold" = xyes; then | |
2621 | # GNU gold --version looks like this: | |
2622 | # | |
2623 | # GNU gold (GNU Binutils 2.21.51.20110225) 1.11 | |
2624 | # | |
2625 | # We extract the binutils version which is more familiar and specific | |
2626 | # than the gold version. | |
2627 | ld_vers=`echo $ld_ver | sed -n \ | |
2628 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
2629 | else | |
2630 | # GNU ld --version looks like this: | |
2631 | # | |
2632 | # GNU ld (GNU Binutils) 2.21.51.20110225 | |
2633 | ld_vers=`echo $ld_ver | sed -n \ | |
2634 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2635 | fi | |
10ca6198 JJ |
2636 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
2637 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2638 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2639 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
55c4f715 RO |
2640 | else |
2641 | case "${target}" in | |
2642 | *-*-solaris2*) | |
dea82cdb | 2643 | # Solaris 2 ld -V output looks like this for a regular version: |
55c4f715 | 2644 | # |
dea82cdb RO |
2645 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 |
2646 | # | |
2647 | # but test versions add stuff at the end: | |
2648 | # | |
2649 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 | |
2650 | # | |
2651 | # In Solaris 11.4, this was changed to | |
2652 | # | |
2653 | # ld: Solaris ELF Utilities: 11.4-1.3123 | |
2654 | # | |
2655 | # ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version | |
2656 | # numbers can be used in ld.so.1 feature checks even if a different | |
2657 | # linker is configured. | |
55c4f715 | 2658 | ld_ver=`$gcc_cv_ld -V 2>&1` |
dea82cdb | 2659 | if echo "$ld_ver" | $EGREP 'Solaris Link Editors|Solaris ELF Utilities' > /dev/null; then |
55c4f715 | 2660 | ld_vers=`echo $ld_ver | sed -n \ |
dea82cdb | 2661 | -e 's,^.*: \(5\|1[0-9]\)\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\2,p'` |
55c4f715 RO |
2662 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2663 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2664 | fi | |
2665 | ;; | |
2666 | esac | |
10ca6198 JJ |
2667 | fi |
2668 | fi | |
2669 | changequote([,])dnl | |
2670 | ||
8ada417f | 2671 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, |
e5dfb95f | 2672 | [[if test $in_tree_ld = yes ; then |
8ada417f ZW |
2673 | gcc_cv_ld_hidden=no |
2674 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2675 | && test $in_tree_ld_is_elf = yes; then | |
2676 | gcc_cv_ld_hidden=yes | |
2677 | fi | |
2678 | else | |
2679 | gcc_cv_ld_hidden=yes | |
55b46574 RO |
2680 | if test x"$ld_is_gold" = xyes; then |
2681 | : | |
2682 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
e2769e90 HPN |
2683 | case "${target}" in |
2684 | mmix-knuth-mmixware) | |
2685 | # The linker emits by default mmo, not ELF, so "no" is appropriate. | |
2686 | gcc_cv_ld_hidden=no | |
2687 | ;; | |
2688 | esac | |
8ada417f ZW |
2689 | if test 0"$ld_date" -lt 20020404; then |
2690 | if test -n "$ld_date"; then | |
2691 | # If there was date string, but was earlier than 2002-04-04, fail | |
2692 | gcc_cv_ld_hidden=no | |
2693 | elif test -z "$ld_vers"; then | |
2694 | # If there was no date string nor ld version number, something is wrong | |
2695 | gcc_cv_ld_hidden=no | |
2696 | else | |
8ada417f ZW |
2697 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2698 | if test "$ld_vers_major" -lt 2; then | |
2699 | gcc_cv_ld_hidden=no | |
2700 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2701 | gcc_cv_ld_hidden="no" | |
2702 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2703 | gcc_cv_ld_hidden=no | |
c72931a6 | 2704 | fi |
8ada417f | 2705 | fi |
789b7de5 | 2706 | fi |
8ada417f | 2707 | else |
28690784 | 2708 | case "${target}" in |
8d91472f DE |
2709 | *-*-aix[789]*) |
2710 | gcc_cv_ld_hidden=yes | |
2711 | ;; | |
ee610fcd RO |
2712 | *-*-darwin*) |
2713 | # Darwin ld has some visibility support. | |
2714 | gcc_cv_ld_hidden=yes | |
2715 | ;; | |
b0fd7d27 | 2716 | hppa64*-*-hpux* | ia64*-*-hpux*) |
28690784 JDA |
2717 | gcc_cv_ld_hidden=yes |
2718 | ;; | |
d9f069ab | 2719 | *-*-solaris2.1[0-9]*) |
a93e1899 RO |
2720 | # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but |
2721 | # .symbolic was only added in Solaris 9 12/02. | |
5e87dc23 RO |
2722 | gcc_cv_ld_hidden=yes |
2723 | ;; | |
28690784 JDA |
2724 | *) |
2725 | gcc_cv_ld_hidden=no | |
2726 | ;; | |
2727 | esac | |
8ada417f | 2728 | fi |
e5dfb95f | 2729 | fi]]) |
8ada417f | 2730 | libgcc_visibility=no |
9e944a16 | 2731 | AC_SUBST(libgcc_visibility) |
232b67d9 | 2732 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0f31374d | 2733 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
8ada417f ZW |
2734 | libgcc_visibility=yes |
2735 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2736 | [Define if your assembler and linker support .hidden.]) | |
2737 | fi | |
6a9c5260 | 2738 | |
e73da78e RO |
2739 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2740 | gcc_cv_ld_ro_rw_mix=unknown | |
2741 | if test $in_tree_ld = yes ; then | |
2742 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2743 | && test $in_tree_ld_is_elf = yes; then | |
2744 | gcc_cv_ld_ro_rw_mix=read-write | |
2745 | fi | |
2746 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2747 | echo '.section myfoosect, "a"' > conftest1.s | |
2748 | echo '.section myfoosect, "aw"' > conftest2.s | |
2749 | echo '.byte 1' >> conftest2.s | |
2750 | echo '.section myfoosect, "a"' > conftest3.s | |
2751 | echo '.byte 0' >> conftest3.s | |
2752 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2753 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2754 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2755 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2756 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2757 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2758 | | sed -e '/myfoosect/!d' -e N` | |
2759 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2760 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2761 | gcc_cv_ld_ro_rw_mix=read-only | |
2762 | else | |
2763 | gcc_cv_ld_ro_rw_mix=read-write | |
2764 | fi | |
2765 | fi | |
2766 | fi | |
2767 | changequote(,)dnl | |
2768 | rm -f conftest.* conftest[123].* | |
2769 | changequote([,])dnl | |
2770 | fi | |
2771 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2772 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2773 | [Define if your linker links a mix of read-only | |
2774 | and read-write sections into a read-write section.]) | |
2775 | fi | |
2776 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2777 | ||
e9c9f128 JJ |
2778 | gcc_AC_INITFINI_ARRAY |
2779 | ||
8ada417f ZW |
2780 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2781 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2782 | [elf,2,11,0],, | |
2783 | [ .data | |
b7460f24 RH |
2784 | .uleb128 L2 - L1 |
2785 | L1: | |
2786 | .uleb128 1280 | |
2787 | .sleb128 -1010 | |
8ada417f | 2788 | L2:], |
e5dfb95f | 2789 | [[# GAS versions before 2.11 do not support uleb128, |
8ada417f ZW |
2790 | # despite appearing to. |
2791 | # ??? There exists an elf-specific test that will crash | |
2792 | # the assembler. Perhaps it's better to figure out whether | |
2793 | # arbitrary sections are supported and try the test. | |
bace148a | 2794 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
8ada417f | 2795 | if echo "$as_ver" | grep GNU > /dev/null; then |
ddcd0f6f | 2796 | as_vers=`echo $as_ver | sed -n \ |
115e6e55 | 2797 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
ddcd0f6f BS |
2798 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2799 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
8ada417f ZW |
2800 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2801 | then : | |
2802 | else gcc_cv_as_leb128=yes | |
2803 | fi | |
e5dfb95f | 2804 | fi]], |
8ada417f | 2805 | [AC_DEFINE(HAVE_AS_LEB128, 1, |
61214be1 TS |
2806 | [Define if your assembler supports .sleb128 and .uleb128.])], |
2807 | [AC_DEFINE(HAVE_AS_LEB128, 0, | |
8ada417f ZW |
2808 | [Define if your assembler supports .sleb128 and .uleb128.])]) |
2809 | ||
a836f142 RO |
2810 | # Determine if an .eh_frame section is read-only. |
2811 | gcc_fn_eh_frame_ro () { | |
2812 | $gcc_cv_as $1 -o conftest.o conftest.s > /dev/null 2>&1 && \ | |
2813 | $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2814 | sed -e '/.eh_frame/!d' -e N | grep READONLY > /dev/null | |
2815 | } | |
2816 | ||
d4ea4622 RH |
2817 | # Check if we have assembler support for unwind directives. |
2818 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
6e60703f | 2819 | ,, |
d4ea4622 RH |
2820 | [ .text |
2821 | .cfi_startproc | |
2822 | .cfi_offset 0, 0 | |
2823 | .cfi_same_value 1 | |
2824 | .cfi_def_cfa 1, 2 | |
2825 | .cfi_escape 1, 2, 3, 4, 5 | |
e73da78e RO |
2826 | .cfi_endproc], |
2827 | [case "$target" in | |
2828 | *-*-solaris*) | |
2829 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2830 | # read-only and read-write sections, we need to make sure that the | |
2831 | # assembler used emits read-write .eh_frame sections. | |
a836f142 RO |
2832 | if test "x$gcc_cv_ld_ro_rw_mix" = xread-write; then |
2833 | gcc_cv_as_cfi_directive=yes | |
2834 | elif test "x$gcc_cv_objdump" = x; then | |
2835 | # No objdump, err on the side of caution. | |
2836 | gcc_cv_as_cfi_directive=no | |
2837 | else | |
2838 | if test x$gas = xyes; then | |
2839 | as_32_opt="--32" | |
2840 | as_64_opt="--64" | |
e73da78e | 2841 | else |
a836f142 RO |
2842 | as_32_opt="-m32" |
2843 | as_64_opt="-m64" | |
e73da78e | 2844 | fi |
a836f142 RO |
2845 | case "$target" in |
2846 | sparc*-*-solaris2.*) | |
2847 | # On Solaris/SPARC, .eh_frame sections should always be read-write. | |
2848 | if gcc_fn_eh_frame_ro $as_32_opt \ | |
2849 | || gcc_fn_eh_frame_ro $as_64_opt; then | |
2850 | gcc_cv_as_cfi_directive=no | |
2851 | else | |
2852 | gcc_cv_as_cfi_directive=yes | |
2853 | fi | |
2854 | ;; | |
2855 | i?86-*-solaris2.* | x86_64-*-solaris2.*) | |
2856 | # On Solaris/x86, make sure that GCC and assembler agree on using | |
2857 | # read-only .eh_frame sections for 64-bit. | |
2858 | if gcc_fn_eh_frame_ro $as_32_opt; then | |
2859 | gcc_cv_as_cfi_directive=no | |
2860 | elif gcc_fn_eh_frame_ro $as_64_opt; then | |
2861 | gcc_cv_as_cfi_directive=yes | |
2862 | else | |
2863 | gcc_cv_as_cfi_directive=no | |
2864 | fi | |
2865 | ;; | |
2866 | esac | |
e73da78e RO |
2867 | fi |
2868 | ;; | |
2869 | *-*-*) | |
2870 | gcc_cv_as_cfi_directive=yes | |
2871 | ;; | |
2872 | esac]) | |
92053f38 | 2873 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then |
6e97481b JJ |
2874 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, |
2875 | ,, | |
2876 | [ .text | |
2877 | .cfi_startproc | |
2878 | .cfi_adjust_cfa_offset 64 | |
7ac22e17 | 2879 | .skip 75040, 0 |
6e97481b JJ |
2880 | .cfi_adjust_cfa_offset 128 |
2881 | .cfi_endproc], | |
e5dfb95f | 2882 | [[ |
92053f38 | 2883 | if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \ |
7ac22e17 | 2884 | | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then |
6e97481b JJ |
2885 | gcc_cv_as_cfi_advance_working=yes |
2886 | fi | |
e5dfb95f | 2887 | ]]) |
6e97481b | 2888 | else |
92053f38 | 2889 | # no objdump, err on the side of caution |
66f91112 | 2890 | gcc_cv_as_cfi_advance_working=no |
6e97481b | 2891 | fi |
174425ad | 2892 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE) |
d4ea4622 | 2893 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
6e97481b JJ |
2894 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2895 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
058514b3 RH |
2896 | [Define 0/1 if your assembler supports CFI directives.]) |
2897 | ||
174425ad | 2898 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE) |
058514b3 | 2899 | gcc_GAS_CHECK_FEATURE([cfi personality directive], |
6e60703f | 2900 | gcc_cv_as_cfi_personality_directive, ,, |
058514b3 | 2901 | [ .text |
042628f9 | 2902 | .cfi_startproc |
058514b3 RH |
2903 | .cfi_personality 0, symbol |
2904 | .cfi_endproc]) | |
2905 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
22e05272 | 2906 | [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], |
058514b3 | 2907 | [Define 0/1 if your assembler supports .cfi_personality.]) |
d4ea4622 | 2908 | |
7d45fb94 JJ |
2909 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
2910 | gcc_cv_as_cfi_sections_directive, ,, | |
2911 | [ .text | |
2912 | .cfi_sections .debug_frame, .eh_frame | |
2913 | .cfi_startproc | |
92053f38 RH |
2914 | .cfi_endproc], |
2915 | [case $target_os in | |
abe64d9e | 2916 | win32 | pe | cygwin* | mingw32*) |
92053f38 RH |
2917 | # Need to check that we generated the correct relocation for the |
2918 | # .debug_frame section. This was fixed for binutils 2.21. | |
2919 | gcc_cv_as_cfi_sections_directive=no | |
2920 | if test "x$gcc_cv_objdump" != x; then | |
2921 | if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \ | |
2922 | grep secrel > /dev/null; then | |
2923 | gcc_cv_as_cfi_sections_directive=yes | |
2924 | fi | |
2925 | fi | |
2926 | ;; | |
2927 | *) | |
2928 | gcc_cv_as_cfi_sections_directive=yes | |
2929 | ;; | |
2930 | esac]) | |
174425ad | 2931 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) |
7d45fb94 | 2932 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, |
22e05272 | 2933 | [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], |
7d45fb94 JJ |
2934 | [Define 0/1 if your assembler supports .cfi_sections.]) |
2935 | ||
8ada417f ZW |
2936 | # GAS versions up to and including 2.11.0 may mis-optimize |
2937 | # .eh_frame data. | |
2938 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2939 | [elf,2,12,0],, | |
2940 | [ .text | |
c64688ae RH |
2941 | .LFB1: |
2942 | .4byte 0 | |
2943 | .L1: | |
2944 | .4byte 0 | |
2945 | .LFE1: | |
2946 | .section .eh_frame,"aw",@progbits | |
2947 | __FRAME_BEGIN__: | |
2948 | .4byte .LECIE1-.LSCIE1 | |
2949 | .LSCIE1: | |
2950 | .4byte 0x0 | |
2951 | .byte 0x1 | |
2952 | .ascii "z\0" | |
2953 | .byte 0x1 | |
2954 | .byte 0x78 | |
2955 | .byte 0x1a | |
2956 | .byte 0x0 | |
2957 | .byte 0x4 | |
2958 | .4byte 1 | |
2959 | .p2align 1 | |
2960 | .LECIE1: | |
2961 | .LSFDE1: | |
2962 | .4byte .LEFDE1-.LASFDE1 | |
2963 | .LASFDE1: | |
2964 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2965 | .4byte .LFB1 | |
2966 | .4byte .LFE1-.LFB1 | |
2967 | .byte 0x4 | |
2968 | .4byte .LFE1-.LFB1 | |
2969 | .byte 0x4 | |
2970 | .4byte .L1-.LFB1 | |
8ada417f | 2971 | .LEFDE1:], |
ba479fd2 NN |
2972 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
2973 | cat > conftest.lit <<EOF | |
c64688ae RH |
2974 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
2975 | 0010 01000000 12000000 18000000 00000000 ................ | |
ba479fd2 | 2976 | 0020 08000000 04080000 0044 .........D @&t@ |
01efb963 | 2977 | EOF |
ba479fd2 | 2978 | cat > conftest.big <<EOF |
01efb963 AS |
2979 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
2980 | 0010 00000001 00000012 00000018 00000000 ................ | |
ba479fd2 | 2981 | 0020 00000008 04000000 0844 .........D @&t@ |
c64688ae | 2982 | EOF |
8ada417f ZW |
2983 | # If the assembler didn't choke, and we can objdump, |
2984 | # and we got the correct data, then succeed. | |
dbc02e7f AS |
2985 | # The text in the here-document typically retains its unix-style line |
2986 | # endings, while the output of objdump will use host line endings. | |
2987 | # Therefore, use diff -b for the comparisons. | |
8ada417f ZW |
2988 | if test x$gcc_cv_objdump != x \ |
2989 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2990 | | tail -3 > conftest.got \ | |
dbc02e7f AS |
2991 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
2992 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
8ada417f ZW |
2993 | then |
2994 | gcc_cv_as_eh_frame=yes | |
2995 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2996 | gcc_cv_as_eh_frame=buggy | |
2997 | else | |
2998 | # Uh oh, what do we do now? | |
2999 | gcc_cv_as_eh_frame=no | |
3000 | fi]) | |
3001 | ||
3002 | if test $gcc_cv_as_eh_frame = buggy; then | |
3003 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
3004 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
201556f0 | 3005 | fi |
201556f0 | 3006 | |
f8d70404 RO |
3007 | # Test if the assembler supports the section flag 'e' or #exclude for |
3008 | # specifying an excluded section. | |
3009 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e, | |
3010 | [2,22,51], [--fatal-warnings], | |
3011 | [.section foo1,"e" | |
3012 | .byte 0,0,0,0]) | |
3013 | if test $gcc_cv_as_section_exclude_e = no; then | |
3014 | case "${target}" in | |
3015 | # Solaris as uses #exclude instead. | |
3016 | *-*-solaris2*) | |
3017 | case "${target}" in | |
3018 | sparc*-*-solaris2*) | |
3019 | conftest_s='.section "foo1", #exclude' | |
3020 | ;; | |
3021 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3022 | conftest_s='.section foo1, #exclude' | |
3023 | ;; | |
3024 | esac | |
3025 | ;; | |
3026 | esac | |
3027 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,, | |
3028 | [$conftest_s | |
3029 | .byte 0,0,0,0]) | |
3030 | fi | |
3031 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE, | |
3032 | [`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`], | |
3033 | [Define if your assembler supports specifying the exclude section flag.]) | |
3034 | ||
8ada417f ZW |
3035 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
3036 | [elf,2,12,0], [--fatal-warnings], | |
5d4856a0 | 3037 | [.section .rodata.str, "aMS", @progbits, 1]) |
c18a5b6c MM |
3038 | if test $gcc_cv_as_shf_merge = no; then |
3039 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
3040 | [elf,2,12,0], [--fatal-warnings], | |
3041 | [.section .rodata.str, "aMS", %progbits, 1]) | |
3042 | fi | |
924d6d0b RO |
3043 | case "$target" in |
3044 | i?86-*-solaris2.10* | x86_64-*-solaris2.10*) | |
3045 | # SHF_MERGE support in Solaris 10/x86 ld is broken. | |
3046 | if test x"$gnu_ld" = xno; then | |
3047 | gcc_cv_as_shf_merge=no | |
3048 | fi | |
3049 | ;; | |
3050 | esac | |
5d4856a0 RO |
3051 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
3052 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3053 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
8ada417f | 3054 | |
dc6b6330 RO |
3055 | gcc_cv_ld_aligned_shf_merge=yes |
3056 | case "$target" in | |
3057 | # While Solaris 10/SPARC ld isn't affected, disable to avoid problems | |
3058 | # relinking on Solaris 11 < 11.4. | |
3059 | sparc*-*-solaris2.10*) | |
3060 | if test x"$gnu_ld" = xno; then | |
3061 | gcc_cv_ld_aligned_shf_merge=no | |
3062 | fi | |
3063 | ;; | |
3064 | # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for | |
3065 | # alignment > 1. | |
3066 | sparc*-*-solaris2.11*) | |
3067 | if test x"$gnu_ld" = xno \ | |
3068 | && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then | |
3069 | gcc_cv_ld_aligned_shf_merge=no | |
3070 | fi | |
3071 | ;; | |
3072 | esac | |
3073 | AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE, | |
3074 | [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3075 | [Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.]) | |
3076 | ||
01704e5a RO |
3077 | gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,, |
3078 | [.stabs "gcc2_compiled.",60,0,0,0],, | |
3079 | [AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1, | |
3080 | [Define if your assembler supports .stabs.])]) | |
3081 | ||
2ca48caa RO |
3082 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)], |
3083 | gcc_cv_as_comdat_group, | |
11176d2a | 3084 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
3085 | [.section .text,"axG",@progbits,.foo,comdat]) |
3086 | if test $gcc_cv_as_comdat_group = yes; then | |
3087 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3088 | gcc_cv_as_comdat_group_group=no |
c18a5b6c | 3089 | else |
2ca48caa RO |
3090 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)], |
3091 | gcc_cv_as_comdat_group_percent, | |
11176d2a | 3092 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c | 3093 | [.section .text,"axG",%progbits,.foo,comdat]) |
2ca48caa RO |
3094 | if test $gcc_cv_as_comdat_group_percent = yes; then |
3095 | gcc_cv_as_comdat_group_group=no | |
3096 | else | |
3097 | case "${target}" in | |
3098 | # Sun as uses a completely different syntax. | |
3099 | *-*-solaris2*) | |
3100 | case "${target}" in | |
3101 | sparc*-*-solaris2*) | |
3102 | conftest_s=' | |
3103 | .group foo,".text%foo",#comdat | |
3104 | .section ".text%foo", #alloc,#execinstr,#progbits | |
3105 | .globl foo | |
3106 | foo: | |
3107 | ' | |
3108 | ;; | |
fbdd5d87 | 3109 | i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) |
2ca48caa RO |
3110 | conftest_s=' |
3111 | .group foo,.text%foo,#comdat | |
3112 | .section .text%foo, "ax", @progbits | |
3113 | .globl foo | |
3114 | foo: | |
3115 | ' | |
3116 | ;; | |
3117 | esac | |
3118 | gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)], | |
3119 | gcc_cv_as_comdat_group_group, | |
3120 | ,, [$conftest_s]) | |
3121 | ;; | |
3122 | esac | |
56e675ce RO |
3123 | if test -z "${gcc_cv_as_comdat_group_group+set}"; then |
3124 | gcc_cv_as_comdat_group_group=no | |
3125 | fi | |
2ca48caa | 3126 | fi |
c18a5b6c | 3127 | fi |
1dcc82c2 DK |
3128 | if test x"$ld_is_gold" = xyes; then |
3129 | comdat_group=yes | |
3130 | elif test $in_tree_ld = yes ; then | |
39ba7b7d JB |
3131 | comdat_group=no |
3132 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3133 | && test $in_tree_ld_is_elf = yes; then | |
3134 | comdat_group=yes | |
3135 | fi | |
55c4f715 | 3136 | elif echo "$ld_ver" | grep GNU > /dev/null; then |
11176d2a JB |
3137 | comdat_group=yes |
3138 | if test 0"$ld_date" -lt 20050308; then | |
3139 | if test -n "$ld_date"; then | |
3140 | # If there was date string, but was earlier than 2005-03-08, fail | |
3141 | comdat_group=no | |
3142 | elif test "$ld_vers_major" -lt 2; then | |
3143 | comdat_group=no | |
3144 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
3145 | comdat_group=no | |
3146 | fi | |
3147 | fi | |
1cf0118d | 3148 | else |
55c4f715 RO |
3149 | changequote(,)dnl |
3150 | case "${target}" in | |
3151 | *-*-solaris2.1[1-9]*) | |
2ca48caa | 3152 | comdat_group=no |
55c4f715 RO |
3153 | # Sun ld has COMDAT group support since Solaris 9, but it doesn't |
3154 | # interoperate with GNU as until Solaris 11 build 130, i.e. ld | |
3155 | # version 1.688. | |
3156 | # | |
2ca48caa RO |
3157 | # If using Sun as for COMDAT group as emitted by GCC, one needs at |
3158 | # least ld version 1.2267. | |
3159 | if test "$ld_vers_major" -gt 1; then | |
55c4f715 | 3160 | comdat_group=yes |
2ca48caa RO |
3161 | elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then |
3162 | comdat_group=yes | |
3163 | elif test "$ld_vers_minor" -ge 2267; then | |
3164 | comdat_group=yes | |
55c4f715 RO |
3165 | fi |
3166 | ;; | |
3167 | *) | |
3168 | # Assume linkers other than GNU ld don't support COMDAT group. | |
3169 | comdat_group=no | |
3170 | ;; | |
3171 | esac | |
3172 | changequote([,])dnl | |
1cf0118d | 3173 | fi |
55c4f715 RO |
3174 | # Allow overriding the automatic COMDAT group tests above. |
3175 | AC_ARG_ENABLE(comdat, | |
3176 | [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])], | |
3177 | [comdat_group="$enable_comdat"]) | |
1cf0118d RO |
3178 | if test $comdat_group = no; then |
3179 | gcc_cv_as_comdat_group=no | |
3180 | gcc_cv_as_comdat_group_percent=no | |
2ca48caa | 3181 | gcc_cv_as_comdat_group_group=no |
11176d2a JB |
3182 | fi |
3183 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
2ca48caa RO |
3184 | [`if test $gcc_cv_as_comdat_group = yes \ |
3185 | || test $gcc_cv_as_comdat_group_percent = yes \ | |
3186 | || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`], | |
11176d2a | 3187 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
c18a5b6c | 3188 | |
af2e3244 RO |
3189 | # Restrict this test to Solaris/x86: other targets define this statically. |
3190 | case "${target}" in | |
3191 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3192 | AC_MSG_CHECKING(support for hidden thunks in linkonce sections) | |
3193 | if test $in_tree_ld = yes || echo "$ld_ver" | grep GNU > /dev/null; then | |
3194 | hidden_linkonce=yes | |
3195 | else | |
3196 | case "${target}" in | |
3197 | # Full support for hidden thunks in linkonce sections only appeared in | |
3198 | # Solaris 11/OpenSolaris. | |
3199 | *-*-solaris2.1[[1-9]]*) | |
3200 | hidden_linkonce=yes | |
3201 | ;; | |
3202 | *) | |
3203 | hidden_linkonce=no | |
3204 | ;; | |
3205 | esac | |
3206 | fi | |
3207 | AC_MSG_RESULT($hidden_linkonce) | |
3208 | AC_DEFINE_UNQUOTED(USE_HIDDEN_LINKONCE, | |
3209 | [`if test $hidden_linkonce = yes; then echo 1; else echo 0; fi`], | |
3210 | [Define 0/1 if your linker supports hidden thunks in linkonce sections.]) | |
3211 | ;; | |
3212 | esac | |
3213 | ||
894f597f AO |
3214 | gcc_GAS_CHECK_FEATURE([line table is_stmt support], |
3215 | gcc_cv_as_is_stmt, | |
3216 | [2,16,92],, | |
3217 | [ .text | |
3218 | .file 1 "conf.c" | |
3219 | .loc 1 1 0 is_stmt 1],, | |
3220 | [AC_DEFINE(HAVE_GAS_LOC_STMT, 1, | |
3221 | [Define if your assembler supports the .loc is_stmt sub-directive.])]) | |
3222 | ||
6c52e687 CC |
3223 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
3224 | gcc_cv_as_discriminator, | |
3225 | [2,19,51],, | |
3226 | [ .text | |
3227 | .file 1 "conf.c" | |
3228 | .loc 1 1 0 discriminator 1],, | |
3229 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
3230 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
3231 | ||
6a7a462c | 3232 | # Thread-local storage - the check is heavily parameterized. |
f996902d RH |
3233 | conftest_s= |
3234 | tls_first_major= | |
3235 | tls_first_minor= | |
9739c90c | 3236 | tls_as_opt= |
f996902d RH |
3237 | case "$target" in |
3238 | changequote(,)dnl | |
6f9b006d RH |
3239 | alpha*-*-*) |
3240 | conftest_s=' | |
3241 | .section ".tdata","awT",@progbits | |
3242 | foo: .long 25 | |
3243 | .text | |
3244 | ldq $27,__tls_get_addr($29) !literal!1 | |
3245 | lda $16,foo($29) !tlsgd!1 | |
3246 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
3247 | ldq $27,__tls_get_addr($29) !literal!2 | |
3248 | lda $16,foo($29) !tlsldm!2 | |
3249 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
3250 | ldq $1,foo($29) !gotdtprel | |
3251 | ldah $2,foo($29) !dtprelhi | |
3252 | lda $3,foo($2) !dtprello | |
3253 | lda $4,foo($29) !dtprel | |
3254 | ldq $1,foo($29) !gottprel | |
3255 | ldah $2,foo($29) !tprelhi | |
3256 | lda $3,foo($2) !tprello | |
3257 | lda $4,foo($29) !tprel' | |
3258 | tls_first_major=2 | |
3259 | tls_first_minor=13 | |
2f3321ca | 3260 | tls_as_opt=--fatal-warnings |
6f9b006d | 3261 | ;; |
28633bbd CZ |
3262 | arc*-*-*) |
3263 | conftest_s=' | |
3264 | add_s r0,r0, @foo@tpoff' | |
3265 | tls_first_major=2 | |
3266 | tls_first_minor=23 | |
3267 | ;; | |
ad9646c7 HPN |
3268 | cris-*-*|crisv32-*-*) |
3269 | conftest_s=' | |
3270 | .section ".tdata","awT",@progbits | |
3271 | x: .long 25 | |
3272 | .text | |
3273 | move.d x:IE,$r10 | |
3274 | nop' | |
3275 | tls_first_major=2 | |
3276 | tls_first_minor=20 | |
3277 | tls_as_opt=--fatal-warnings | |
3278 | ;; | |
e4dd71de AH |
3279 | frv*-*-*) |
3280 | conftest_s=' | |
3281 | .section ".tdata","awT",@progbits | |
3282 | x: .long 25 | |
3283 | .text | |
3284 | call #gettlsoff(x)' | |
3285 | tls_first_major=2 | |
3286 | tls_first_minor=14 | |
3287 | ;; | |
51076f96 RC |
3288 | hppa*-*-linux*) |
3289 | conftest_s=' | |
3290 | t1: .reg %r20 | |
3291 | t2: .reg %r21 | |
3292 | gp: .reg %r19 | |
3293 | .section ".tdata","awT",@progbits | |
3294 | foo: .long 25 | |
3295 | .text | |
3296 | .align 4 | |
3297 | addil LT%foo-$tls_gdidx$,gp | |
3298 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
3299 | b __tls_get_addr | |
3300 | nop | |
3301 | addil LT%foo-$tls_ldidx$,gp | |
3302 | b __tls_get_addr | |
3303 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
3304 | addil LR%foo-$tls_dtpoff$,%ret0 | |
3305 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
3306 | mfctl %cr27,%t1 | |
3307 | addil LT%foo-$tls_ieoff$,gp | |
3308 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
3309 | add %t1,%t2,%t3 | |
3310 | mfctl %cr27,%t1 | |
3311 | addil LR%foo-$tls_leoff$,%t1 | |
3312 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
3313 | tls_first_major=2 | |
3314 | tls_first_minor=15 | |
3315 | tls_as_opt=--fatal-warnings | |
3316 | ;; | |
d3585b76 DJ |
3317 | arm*-*-*) |
3318 | conftest_s=' | |
3319 | .section ".tdata","awT",%progbits | |
3320 | foo: .long 25 | |
3321 | .text | |
3322 | .word foo(gottpoff) | |
3323 | .word foo(tpoff) | |
3324 | .word foo(tlsgd) | |
3325 | .word foo(tlsldm) | |
3326 | .word foo(tlsldo)' | |
3327 | tls_first_major=2 | |
3328 | tls_first_minor=17 | |
3329 | ;; | |
fe4e71e4 | 3330 | i[34567]86-*-* | x86_64-*-*) |
f1c26cad | 3331 | case "$target" in |
c02f59e2 | 3332 | i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*) |
f1c26cad | 3333 | on_solaris=yes |
fbdd5d87 | 3334 | ;; |
f1c26cad RO |
3335 | *) |
3336 | on_solaris=no | |
3337 | ;; | |
3338 | esac | |
3339 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3340 | conftest_s=' | |
3341 | .section .tdata,"awt",@progbits' | |
3342 | tls_first_major=0 | |
3343 | tls_first_minor=0 | |
caa16d41 | 3344 | tls_section_flag=t |
f1c26cad RO |
3345 | changequote([,])dnl |
3346 | AC_DEFINE(TLS_SECTION_ASM_FLAG, 't', | |
3347 | [Define to the flag used to mark TLS sections if the default (`T') doesn't work.]) | |
3348 | changequote(,)dnl | |
3349 | else | |
3350 | conftest_s=' | |
3351 | .section ".tdata","awT",@progbits' | |
3352 | tls_first_major=2 | |
3353 | tls_first_minor=14 | |
caa16d41 | 3354 | tls_section_flag=T |
f1c26cad RO |
3355 | tls_as_opt="--fatal-warnings" |
3356 | fi | |
fe4e71e4 RO |
3357 | case "$target" in |
3358 | i[34567]86-*-*) | |
3359 | conftest_s="$conftest_s | |
f996902d RH |
3360 | foo: .long 25 |
3361 | .text | |
3362 | movl %gs:0, %eax | |
f1c26cad RO |
3363 | leal foo@tlsgd(,%ebx,1), %eax |
3364 | leal foo@tlsldm(%ebx), %eax | |
3365 | leal foo@dtpoff(%eax), %edx | |
3366 | movl foo@gottpoff(%ebx), %eax | |
3367 | subl foo@gottpoff(%ebx), %eax | |
3368 | addl foo@gotntpoff(%ebx), %eax | |
3369 | movl foo@indntpoff, %eax | |
3370 | movl \$foo@tpoff, %eax | |
3371 | subl \$foo@tpoff, %eax | |
3372 | leal foo@ntpoff(%ecx), %eax" | |
fe4e71e4 RO |
3373 | ;; |
3374 | x86_64-*-*) | |
3375 | if test x$on_solaris = xyes; then | |
3376 | case $gas_flag in | |
3377 | yes) tls_as_opt="$tls_as_opt --64" ;; | |
3378 | no) tls_as_opt="$tls_as_opt -xarch=amd64" ;; | |
3379 | esac | |
3380 | fi | |
3381 | conftest_s="$conftest_s | |
75d38379 JJ |
3382 | foo: .long 25 |
3383 | .text | |
3384 | movq %fs:0, %rax | |
fe4e71e4 RO |
3385 | leaq foo@tlsgd(%rip), %rdi |
3386 | leaq foo@tlsld(%rip), %rdi | |
3387 | leaq foo@dtpoff(%rax), %rdx | |
3388 | movq foo@gottpoff(%rip), %rax | |
3389 | movq \$foo@tpoff, %rax" | |
3390 | ;; | |
3391 | esac | |
3392 | ;; | |
7b6e506e RH |
3393 | ia64-*-*) |
3394 | conftest_s=' | |
3395 | .section ".tdata","awT",@progbits | |
3396 | foo: data8 25 | |
3397 | .text | |
3398 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
3399 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
3400 | addl r18 = @ltoff(@tprel(foo#)), gp | |
3401 | addl r19 = @dtprel(foo#), gp | |
3402 | adds r21 = @dtprel(foo#), r13 | |
3403 | movl r23 = @dtprel(foo#) | |
3404 | addl r20 = @tprel(foo#), gp | |
3405 | adds r22 = @tprel(foo#), r13 | |
3406 | movl r24 = @tprel(foo#)' | |
3407 | tls_first_major=2 | |
3408 | tls_first_minor=13 | |
2f3321ca | 3409 | tls_as_opt=--fatal-warnings |
7b6e506e | 3410 | ;; |
8cc9a5a5 EI |
3411 | microblaze*-*-*) |
3412 | conftest_s=' | |
3413 | .section .tdata,"awT",@progbits | |
3414 | x: | |
3415 | .word 2 | |
3416 | .text | |
3417 | addik r5,r20,x@TLSGD | |
3418 | addik r5,r20,x@TLSLDM' | |
3419 | tls_first_major=2 | |
3420 | tls_first_minor=20 | |
3421 | tls_as_opt='--fatal-warnings' | |
3422 | ;; | |
69229b81 DJ |
3423 | mips*-*-*) |
3424 | conftest_s=' | |
3425 | .section .tdata,"awT",@progbits | |
3426 | x: | |
3427 | .word 2 | |
3428 | .text | |
3429 | addiu $4, $28, %tlsgd(x) | |
3430 | addiu $4, $28, %tlsldm(x) | |
3431 | lui $4, %dtprel_hi(x) | |
3432 | addiu $4, $4, %dtprel_lo(x) | |
3433 | lw $4, %gottprel(x)($28) | |
3434 | lui $4, %tprel_hi(x) | |
3435 | addiu $4, $4, %tprel_lo(x)' | |
3436 | tls_first_major=2 | |
3437 | tls_first_minor=16 | |
3438 | tls_as_opt='-32 --fatal-warnings' | |
3439 | ;; | |
75df395f MK |
3440 | m68k-*-*) |
3441 | conftest_s=' | |
3442 | .section .tdata,"awT",@progbits | |
3443 | x: | |
3444 | .word 2 | |
3445 | .text | |
3446 | foo: | |
3447 | move.l x@TLSGD(%a5),%a0 | |
3448 | move.l x@TLSLDM(%a5),%a0 | |
3449 | move.l x@TLSLDO(%a5),%a0 | |
3450 | move.l x@TLSIE(%a5),%a0 | |
3451 | move.l x@TLSLE(%a5),%a0' | |
3452 | tls_first_major=2 | |
3453 | tls_first_minor=19 | |
3454 | tls_as_opt='--fatal-warnings' | |
3455 | ;; | |
e430824f CLT |
3456 | nios2-*-*) |
3457 | conftest_s=' | |
3458 | .section ".tdata","awT",@progbits' | |
3459 | tls_first_major=2 | |
3460 | tls_first_minor=23 | |
3461 | tls_as_opt="--fatal-warnings" | |
3462 | ;; | |
24034425 IB |
3463 | aarch64*-*-*) |
3464 | conftest_s=' | |
3465 | .section ".tdata","awT",%progbits | |
3466 | foo: .long 25 | |
3467 | .text | |
3468 | adrp x0, :tlsgd:x | |
3469 | add x0, x0, #:tlsgd_lo12:x | |
3470 | bl __tls_get_addr | |
3471 | nop' | |
3472 | tls_first_major=2 | |
3473 | tls_first_minor=20 | |
3474 | tls_as_opt='--fatal-warnings' | |
3475 | ;; | |
7a8b1ec4 DE |
3476 | powerpc-ibm-aix*) |
3477 | conftest_s=' | |
3478 | .extern __get_tpointer | |
3479 | .toc | |
3480 | LC..1: | |
3481 | .tc a[TC],a[TL]@le | |
3482 | .csect .text[PR] | |
3483 | .tlstest: | |
3484 | lwz 9,LC..1(2) | |
3485 | bla __get_tpointer | |
3486 | lwzx 3,9,3 | |
3487 | .globl a | |
3488 | .csect a[TL],4 | |
3489 | a: | |
3490 | .space 4' | |
3491 | tls_first_major=0 | |
3492 | tls_first_minor=0 | |
3493 | ;; | |
227eb343 | 3494 | powerpc64*-*-*) |
c4501e62 JJ |
3495 | conftest_s=' |
3496 | .section ".tdata","awT",@progbits | |
3497 | .align 3 | |
3498 | ld0: .space 8 | |
3499 | ld1: .space 8 | |
3500 | x1: .space 8 | |
3501 | x2: .space 8 | |
3502 | x3: .space 8 | |
3503 | .text | |
3504 | addi 3,2,ld0@got@tlsgd | |
3505 | bl .__tls_get_addr | |
3506 | nop | |
3507 | addi 3,2,ld1@toc | |
3508 | bl .__tls_get_addr | |
3509 | nop | |
3510 | addi 3,2,x1@got@tlsld | |
3511 | bl .__tls_get_addr | |
3512 | nop | |
3513 | addi 9,3,x1@dtprel | |
3514 | bl .__tls_get_addr | |
3515 | nop | |
3516 | addis 9,3,x2@dtprel@ha | |
3517 | addi 9,9,x2@dtprel@l | |
3518 | bl .__tls_get_addr | |
3519 | nop | |
3520 | ld 9,x3@got@dtprel(2) | |
3521 | add 9,9,3 | |
3522 | bl .__tls_get_addr | |
3523 | nop' | |
3524 | tls_first_major=2 | |
3525 | tls_first_minor=14 | |
2f3321ca | 3526 | tls_as_opt="-a64 --fatal-warnings" |
c4501e62 | 3527 | ;; |
01ae4861 AM |
3528 | powerpc*-*-*) |
3529 | conftest_s=' | |
3530 | .section ".tdata","awT",@progbits | |
3531 | .align 2 | |
3532 | ld0: .space 4 | |
3533 | ld1: .space 4 | |
3534 | x1: .space 4 | |
3535 | x2: .space 4 | |
3536 | x3: .space 4 | |
3537 | .text | |
3538 | addi 3,31,ld0@got@tlsgd | |
3539 | bl __tls_get_addr | |
3540 | addi 3,31,x1@got@tlsld | |
3541 | bl __tls_get_addr | |
3542 | addi 9,3,x1@dtprel | |
3543 | addis 9,3,x2@dtprel@ha | |
3544 | addi 9,9,x2@dtprel@l | |
3545 | lwz 9,x3@got@tprel(31) | |
3546 | add 9,9,x@tls | |
3547 | addi 9,2,x1@tprel | |
3548 | addis 9,2,x2@tprel@ha | |
3549 | addi 9,9,x2@tprel@l' | |
3550 | tls_first_major=2 | |
3551 | tls_first_minor=14 | |
3552 | tls_as_opt="-a32 --fatal-warnings" | |
3553 | ;; | |
09cae750 PD |
3554 | riscv*-*-*) |
3555 | conftest_s=' | |
3556 | .section .tdata,"awT",@progbits | |
3557 | x: .word 2 | |
3558 | .text | |
3559 | la.tls.gd a0,x | |
3560 | call __tls_get_addr' | |
3561 | tls_first_major=2 | |
3562 | tls_first_minor=21 | |
3563 | tls_as_opt='--fatal-warnings' | |
3564 | ;; | |
fd3cd001 UW |
3565 | s390-*-*) |
3566 | conftest_s=' | |
3567 | .section ".tdata","awT",@progbits | |
3568 | foo: .long 25 | |
3569 | .text | |
3570 | .long foo@TLSGD | |
3571 | .long foo@TLSLDM | |
3572 | .long foo@DTPOFF | |
3573 | .long foo@NTPOFF | |
3574 | .long foo@GOTNTPOFF | |
3575 | .long foo@INDNTPOFF | |
3576 | l %r1,foo@GOTNTPOFF(%r12) | |
3577 | l %r1,0(%r1):tls_load:foo | |
3578 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
3579 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
3580 | tls_first_major=2 | |
3581 | tls_first_minor=14 | |
2f3321ca | 3582 | tls_as_opt="-m31 --fatal-warnings" |
fd3cd001 UW |
3583 | ;; |
3584 | s390x-*-*) | |
3585 | conftest_s=' | |
3586 | .section ".tdata","awT",@progbits | |
3587 | foo: .long 25 | |
3588 | .text | |
3589 | .quad foo@TLSGD | |
3590 | .quad foo@TLSLDM | |
3591 | .quad foo@DTPOFF | |
3592 | .quad foo@NTPOFF | |
3593 | .quad foo@GOTNTPOFF | |
3594 | lg %r1,foo@GOTNTPOFF(%r12) | |
3595 | larl %r1,foo@INDNTPOFF | |
3596 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
3597 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
3598 | tls_first_major=2 | |
3599 | tls_first_minor=14 | |
2f3321ca | 3600 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
fd3cd001 | 3601 | ;; |
311adabe | 3602 | sh-*-* | sh[123456789lbe]*-*-*) |
9ff13962 KK |
3603 | conftest_s=' |
3604 | .section ".tdata","awT",@progbits | |
3605 | foo: .long 25 | |
3606 | .text | |
3607 | .long foo@TLSGD | |
3608 | .long foo@TLSLDM | |
3609 | .long foo@DTPOFF | |
3610 | .long foo@GOTTPOFF | |
3611 | .long foo@TPOFF' | |
3612 | tls_first_major=2 | |
3613 | tls_first_minor=13 | |
2f3321ca | 3614 | tls_as_opt=--fatal-warnings |
9ff13962 | 3615 | ;; |
5751a10b | 3616 | sparc*-*-*) |
2f3321ca EB |
3617 | case "$target" in |
3618 | sparc*-sun-solaris2.*) | |
3619 | on_solaris=yes | |
3620 | ;; | |
3621 | *) | |
3622 | on_solaris=no | |
3623 | ;; | |
3624 | esac | |
3625 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3626 | conftest_s=' | |
16c9d3b1 | 3627 | .section ".tdata",#alloc,#write,#tls' |
2f3321ca EB |
3628 | tls_first_major=0 |
3629 | tls_first_minor=0 | |
3630 | else | |
3631 | conftest_s=' | |
16c9d3b1 RO |
3632 | .section ".tdata","awT",@progbits' |
3633 | tls_first_major=2 | |
3634 | tls_first_minor=14 | |
3635 | tls_as_opt="-32 --fatal-warnings" | |
3636 | fi | |
3637 | conftest_s="$conftest_s | |
5751a10b JJ |
3638 | foo: .long 25 |
3639 | .text | |
3640 | sethi %tgd_hi22(foo), %o0 | |
3641 | add %o0, %tgd_lo10(foo), %o1 | |
3642 | add %l7, %o1, %o0, %tgd_add(foo) | |
3643 | call __tls_get_addr, %tgd_call(foo) | |
3644 | sethi %tldm_hi22(foo), %l1 | |
3645 | add %l1, %tldm_lo10(foo), %l2 | |
3646 | add %l7, %l2, %o0, %tldm_add(foo) | |
3647 | call __tls_get_addr, %tldm_call(foo) | |
3648 | sethi %tldo_hix22(foo), %l3 | |
3649 | xor %l3, %tldo_lox10(foo), %l4 | |
3650 | add %o0, %l4, %l5, %tldo_add(foo) | |
3651 | sethi %tie_hi22(foo), %o3 | |
3652 | add %o3, %tie_lo10(foo), %o3 | |
3653 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
3654 | add %g7, %o2, %o4, %tie_add(foo) | |
3655 | sethi %tle_hix22(foo), %l1 | |
3656 | xor %l1, %tle_lox10(foo), %o5 | |
16c9d3b1 | 3657 | ld [%g7 + %o5], %o1" |
5751a10b | 3658 | ;; |
dd552284 WL |
3659 | tilepro*-*-*) |
3660 | conftest_s=' | |
3661 | .section ".tdata","awT",@progbits | |
3662 | foo: .long 25 | |
3663 | .text | |
3664 | addli r0, zero, tls_gd(foo) | |
3665 | auli r0, zero, tls_gd_ha16(foo) | |
3666 | addli r0, r0, tls_gd_lo16(foo) | |
3667 | jal __tls_get_addr | |
3668 | addli r0, zero, tls_ie(foo) | |
3669 | auli r0, r0, tls_ie_ha16(foo) | |
3670 | addli r0, r0, tls_ie_lo16(foo)' | |
3671 | tls_first_major=2 | |
3672 | tls_first_minor=22 | |
3673 | tls_as_opt="--fatal-warnings" | |
3674 | ;; | |
3675 | tilegx*-*-*) | |
3676 | conftest_s=' | |
3677 | .section ".tdata","awT",@progbits | |
3678 | foo: .long 25 | |
3679 | .text | |
3680 | shl16insli r0, zero, hw0_last_tls_gd(foo) | |
3681 | shl16insli r0, zero, hw1_last_tls_gd(foo) | |
3682 | shl16insli r0, r0, hw0_tls_gd(foo) | |
3683 | jal __tls_get_addr | |
3684 | shl16insli r0, zero, hw1_last_tls_ie(foo) | |
3685 | shl16insli r0, r0, hw0_tls_ie(foo)' | |
3686 | tls_first_major=2 | |
3687 | tls_first_minor=22 | |
3688 | tls_as_opt="--fatal-warnings" | |
3689 | ;; | |
6a7a462c BW |
3690 | xtensa*-*-*) |
3691 | conftest_s=' | |
3692 | .section ".tdata","awT",@progbits | |
3693 | foo: .long 25 | |
3694 | .text | |
3695 | movi a8, foo@TLSFUNC | |
3696 | movi a10, foo@TLSARG | |
3697 | callx8.tls a8, foo@TLSCALL' | |
3698 | tls_first_major=2 | |
3699 | tls_first_minor=19 | |
3700 | ;; | |
5751a10b | 3701 | changequote([,])dnl |
f996902d | 3702 | esac |
8dea1cca DD |
3703 | set_have_as_tls=no |
3704 | if test "x$enable_tls" = xno ; then | |
3705 | : # TLS explicitly disabled. | |
3706 | elif test "x$enable_tls" = xyes ; then | |
3707 | set_have_as_tls=yes # TLS explicitly enabled. | |
3708 | elif test -z "$tls_first_major"; then | |
8ada417f ZW |
3709 | : # If we don't have a check, assume no support. |
3710 | else | |
3711 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2f3321ca | 3712 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
8dea1cca DD |
3713 | [set_have_as_tls=yes]) |
3714 | fi | |
3715 | if test $set_have_as_tls = yes ; then | |
3716 | AC_DEFINE(HAVE_AS_TLS, 1, | |
16c9d3b1 | 3717 | [Define if your assembler and linker support thread-local storage.]) |
f996902d | 3718 | fi |
8ada417f ZW |
3719 | |
3720 | # Target-specific assembler checks. | |
f996902d | 3721 | |
7e9d8517 L |
3722 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
3723 | gcc_cv_ld_static_dynamic=no | |
c6092243 RO |
3724 | gcc_cv_ld_static_option='-Bstatic' |
3725 | gcc_cv_ld_dynamic_option='-Bdynamic' | |
7e9d8517 | 3726 | if test $in_tree_ld = yes ; then |
83f0ccb8 | 3727 | if test "$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 |
3728 | gcc_cv_ld_static_dynamic=yes |
3729 | fi | |
3730 | elif test x$gcc_cv_ld != x; then | |
bb127cd8 | 3731 | # Check if linker supports -Bstatic/-Bdynamic option |
8dc877eb RO |
3732 | if $gcc_cv_ld --help 2>&1 | grep -- -Bstatic > /dev/null \ |
3733 | && $gcc_cv_ld --help 2>&1 | grep -- -Bdynamic > /dev/null; then | |
bb127cd8 RO |
3734 | gcc_cv_ld_static_dynamic=yes |
3735 | else | |
3736 | case "$target" in | |
478f60f9 MH |
3737 | # AIX ld uses -b flags |
3738 | *-*-aix4.[[23]]* | *-*-aix[[5-9]]*) | |
3739 | gcc_cv_ld_static_dynamic=yes | |
3740 | gcc_cv_ld_static_option="-bstatic" | |
3741 | gcc_cv_ld_dynamic_option="-bdynamic" | |
3742 | ;; | |
f903e000 SE |
3743 | # HP-UX ld uses -a flags to select between shared and archive. |
3744 | *-*-hpux*) | |
3745 | if test x"$gnu_ld" = xno; then | |
3746 | gcc_cv_ld_static_dynamic=yes | |
3747 | gcc_cv_ld_static_option="-aarchive_shared" | |
3748 | gcc_cv_ld_dynamic_option="-adefault" | |
3749 | fi | |
3750 | ;; | |
bb127cd8 RO |
3751 | # Solaris 2 ld always supports -Bstatic/-Bdynamic. |
3752 | *-*-solaris2*) | |
3753 | gcc_cv_ld_static_dynamic=yes | |
3754 | ;; | |
3755 | esac | |
3756 | fi | |
7e9d8517 L |
3757 | fi |
3758 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
3759 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
c6092243 RO |
3760 | [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.]) |
3761 | AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option", | |
3762 | [Define to the linker option to disable use of shared objects.]) | |
3763 | AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option", | |
3764 | [Define to the linker option to enable use of shared objects.]) | |
7e9d8517 L |
3765 | fi |
3766 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
3767 | ||
deb3da39 DM |
3768 | AC_MSG_CHECKING(linker --version-script option) |
3769 | gcc_cv_ld_version_script=no | |
3770 | ld_version_script_option='' | |
3771 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3772 | gcc_cv_ld_version_script=yes | |
3773 | ld_version_script_option='--version-script' | |
3774 | elif test x$gcc_cv_ld != x; then | |
3775 | case "$target" in | |
3776 | # Solaris 2 ld always supports -M. It also supports a subset of | |
3777 | # --version-script since Solaris 11.4, but requires | |
3778 | # -z gnu-version-script-compat to activate. | |
3779 | *-*-solaris2*) | |
3780 | gcc_cv_ld_version_script=yes | |
3781 | ld_version_script_option='-M' | |
3782 | ;; | |
3783 | esac | |
3784 | fi | |
3785 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3786 | AC_MSG_RESULT($gcc_cv_ld_version_script) | |
3787 | AC_SUBST(ld_version_script_option) | |
3788 | ||
3789 | AC_MSG_CHECKING(linker soname option) | |
3790 | gcc_cv_ld_soname=no | |
3791 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3792 | gcc_cv_ld_soname=yes | |
3793 | ld_soname_option='-soname' | |
3794 | elif test x$gcc_cv_ld != x; then | |
3795 | case "$target" in | |
3796 | *-*-darwin*) | |
3797 | gcc_cv_ld_soname=yes | |
3798 | ld_soname_option='-install_name' | |
3799 | ;; | |
ea143da7 RO |
3800 | # Solaris 2 ld always supports -h. It also supports --soname for GNU |
3801 | # ld compatiblity since some Solaris 10 update. | |
3802 | *-*-solaris2*) | |
3803 | gcc_cv_ld_soname=yes | |
3804 | ld_soname_option='-h' | |
3805 | ;; | |
deb3da39 DM |
3806 | esac |
3807 | fi | |
3808 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3809 | AC_MSG_RESULT($gcc_cv_ld_soname) | |
3810 | AC_SUBST(ld_soname_option) | |
3811 | ||
d594623a L |
3812 | if test x"$demangler_in_ld" = xyes; then |
3813 | AC_MSG_CHECKING(linker --demangle support) | |
3814 | gcc_cv_ld_demangle=no | |
3815 | if test $in_tree_ld = yes; then | |
3816 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
3817 | gcc_cv_ld_demangle=yes | |
3818 | fi | |
3819 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
3820 | # Check if the GNU linker supports --demangle option | |
8dc877eb | 3821 | if $gcc_cv_ld --help 2>&1 | grep no-demangle > /dev/null; then |
d594623a L |
3822 | gcc_cv_ld_demangle=yes |
3823 | fi | |
3824 | fi | |
3825 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
3826 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
3827 | [Define if your linker supports --demangle option.]) | |
3828 | fi | |
3829 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
3830 | fi | |
3831 | ||
96bdf9b4 | 3832 | AC_MSG_CHECKING(linker plugin support) |
55b46574 | 3833 | gcc_cv_lto_plugin=0 |
f3d533d3 | 3834 | if test -f liblto_plugin.la; then |
df33b41f RO |
3835 | save_ld_ver="$ld_ver" |
3836 | save_ld_vers_major="$ld_vers_major" | |
3837 | save_ld_vers_minor="$ld_vers_minor" | |
3838 | save_ld_is_gold="$ld_is_gold" | |
3839 | ||
3840 | ld_is_gold=no | |
55b46574 | 3841 | |
df33b41f RO |
3842 | if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then |
3843 | ld_ver="GNU ld" | |
3844 | # FIXME: ld_is_gold? | |
3845 | ld_vers_major="$gcc_cv_gld_major_version" | |
3846 | ld_vers_minor="$gcc_cv_gld_minor_version" | |
3847 | else | |
3848 | # Determine plugin linker version. | |
3849 | # FIXME: Partial duplicate from above, generalize. | |
3850 | changequote(,)dnl | |
3851 | ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q` | |
3852 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
3853 | if echo "$ld_ver" | grep "GNU gold" > /dev/null; then | |
3854 | ld_is_gold=yes | |
3855 | ld_vers=`echo $ld_ver | sed -n \ | |
3856 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
3857 | else | |
3858 | ld_vers=`echo $ld_ver | sed -n \ | |
3859 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
3860 | fi | |
3861 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
3862 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
55b46574 | 3863 | fi |
df33b41f RO |
3864 | changequote([,])dnl |
3865 | fi | |
3866 | ||
3867 | # Determine plugin support. | |
3868 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
55b46574 RO |
3869 | # Require GNU ld or gold 2.21+ for plugin support by default. |
3870 | if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then | |
3871 | gcc_cv_lto_plugin=2 | |
3872 | # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20. | |
3873 | elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then | |
3874 | gcc_cv_lto_plugin=1 | |
96bdf9b4 | 3875 | fi |
96bdf9b4 | 3876 | fi |
df33b41f RO |
3877 | |
3878 | ld_ver="$save_ld_ver" | |
3879 | ld_vers_major="$save_ld_vers_major" | |
3880 | ld_vers_minor="$save_ld_vers_minor" | |
3881 | ld_is_gold="$save_ld_is_gold" | |
96bdf9b4 | 3882 | fi |
55b46574 RO |
3883 | AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin, |
3884 | [Define to the level of your linker's plugin support.]) | |
96bdf9b4 JH |
3885 | AC_MSG_RESULT($gcc_cv_lto_plugin) |
3886 | ||
b410cf1d IS |
3887 | # Target OS-specific assembler checks. |
3888 | ||
3889 | case "$target_os" in | |
3890 | darwin*) | |
3891 | gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option], | |
3892 | gcc_cv_as_mmacosx_version_min,, | |
3893 | [-mmacosx-version-min=10.1], [.text],, | |
3894 | [AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1, | |
3895 | [Define if your Mac OS X assembler supports the -mmacos-version-min option.])]) | |
3896 | ;; | |
3897 | esac | |
3898 | ||
3899 | # Target CPU-specific assembler checks. | |
3900 | ||
275b60d6 | 3901 | case "$target" in |
63892fa2 KV |
3902 | aarch64*-*-*) |
3903 | gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,, | |
3904 | [-mabi=lp64], [.text],,,) | |
3905 | if test x$gcc_cv_as_aarch64_mabi = xyes; then | |
3906 | AC_DEFINE(HAVE_AS_MABI_OPTION, 1, | |
3907 | [Define if your assembler supports the -mabi option.]) | |
3908 | else | |
3909 | if test x$with_abi = xilp32; then | |
3910 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
3911 | Upgrade the Assembler.]) | |
3912 | fi | |
3913 | if test x"$with_multilib_list" = xdefault; then | |
3914 | TM_MULTILIB_CONFIG=lp64 | |
3915 | else | |
3916 | aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'` | |
3917 | for aarch64_multilib in ${aarch64_multilibs}; do | |
3918 | case ${aarch64_multilib} in | |
3919 | ilp32) | |
3920 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
3921 | Upgrade the Assembler.]) | |
3922 | ;; | |
3923 | *) | |
3924 | ;; | |
3925 | esac | |
3926 | done | |
3927 | fi | |
3928 | fi | |
34ecdb0f JW |
3929 | # Check if we have binutils support for relocations types needed by -fpic |
3930 | gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,, | |
3931 | [ | |
3932 | .text | |
3933 | ldr x0, [[x2, #:gotpage_lo15:globalsym]] | |
3934 | ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1, | |
3935 | [Define if your assembler supports relocs needed by -fpic.])]) | |
5e396da6 KT |
3936 | # Enable default workaround for AArch64 Cortex-A53 erratum 835769. |
3937 | AC_ARG_ENABLE(fix-cortex-a53-835769, | |
3938 | [ | |
3939 | AS_HELP_STRING([--enable-fix-cortex-a53-835769], | |
3940 | [enable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
3941 | AS_HELP_STRING([--disable-fix-cortex-a53-835769], | |
3942 | [disable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
3943 | ], | |
3944 | [ | |
3945 | case $enableval in | |
3946 | yes) | |
3947 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1" | |
3948 | ;; | |
3949 | no) | |
3950 | ;; | |
3951 | *) | |
3952 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\ | |
3953 | Valid choices are 'yes' and 'no'.]) | |
3954 | ;; | |
3955 | ||
3956 | esac | |
3957 | ], | |
3958 | []) | |
bf05ef76 YR |
3959 | # Enable default workaround for AArch64 Cortex-A53 erratum 843419. |
3960 | AC_ARG_ENABLE(fix-cortex-a53-843419, | |
3961 | [ | |
3962 | AS_HELP_STRING([--enable-fix-cortex-a53-843419], | |
3963 | [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
3964 | AS_HELP_STRING([--disable-fix-cortex-a53-843419], | |
3965 | [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
3966 | ], | |
3967 | [ | |
3968 | case $enableval in | |
3969 | yes) | |
3970 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" | |
3971 | ;; | |
3972 | no) | |
3973 | ;; | |
3974 | *) | |
3975 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ | |
3976 | Valid choices are 'yes' and 'no'.]) | |
3977 | ;; | |
3978 | ||
3979 | esac | |
3980 | ], | |
3981 | []) | |
63892fa2 KV |
3982 | ;; |
3983 | ||
3a37b08e | 3984 | # All TARGET_ABI_OSF targets. |
5c30094f | 3985 | alpha*-*-linux* | alpha*-*-*bsd*) |
8ada417f ZW |
3986 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
3987 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
3988 | [ .set nomacro | |
3a37b08e RH |
3989 | .text |
3990 | extbl $3, $2, $3 !lituse_bytoff!1 | |
3991 | ldq $2, a($29) !literal!1 | |
3992 | ldq $4, b($29) !literal!2 | |
3993 | ldq_u $3, 0($2) !lituse_base!1 | |
3994 | ldq $27, f($29) !literal!5 | |
3995 | jsr $26, ($27), f !lituse_jsr!5 | |
3996 | ldah $29, 0($26) !gpdisp!3 | |
3997 | lda $0, c($29) !gprel | |
3998 | ldah $1, d($29) !gprelhigh | |
3999 | lda $1, d($1) !gprellow | |
8ada417f ZW |
4000 | lda $29, 0($29) !gpdisp!3],, |
4001 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
4002 | [Define if your assembler supports explicit relocations.])]) | |
d006f5eb RH |
4003 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
4004 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
4005 | [ .set nomacro | |
4006 | .text | |
4007 | ldq $27, a($29) !literal!1 | |
4008 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
4009 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
4010 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
3a37b08e | 4011 | ;; |
e95b1e6a | 4012 | |
0c9dc4ae GJL |
4013 | avr-*-*) |
4014 | gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,, | |
4015 | [--mlink-relax], [.text],, | |
4016 | [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1, | |
4017 | [Define if your avr assembler supports --mlink-relax option.])]) | |
4018 | ||
4019 | gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,, | |
4020 | [-mrmw], [.text],, | |
4021 | [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1, | |
4022 | [Define if your avr assembler supports -mrmw option.])]) | |
3266ddb3 | 4023 | |
63866e04 GJL |
4024 | gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction], |
4025 | gcc_cv_as_avr_mgccisr,, | |
4026 | [-mgcc-isr], [.text | |
4027 | __gcc_isr 1 | |
4028 | __gcc_isr 2 | |
4029 | __gcc_isr 0,r24 | |
4030 | ],, | |
4031 | [AC_DEFINE(HAVE_AS_AVR_MGCCISR_OPTION, 1, | |
4032 | [Define if your avr assembler supports -mgcc-isr option.])]) | |
4033 | ||
3266ddb3 GJL |
4034 | # Check how default linker description file implements .rodata for |
4035 | # avrxmega3 (PR21472). avr-gcc assumes .rodata is *not* loaded to | |
4036 | # RAM so avr-gcc skips __do_copy_data for .rodata objects. | |
4037 | AC_MSG_CHECKING(binutils for avrxmega3 .rodata support) | |
4038 | cat > conftest.s <<EOF | |
4039 | .section .rodata,"a",@progbits | |
4040 | .global xxvaryy | |
4041 | ;; avr-nm should print "... R xxvaryy", not "... D xxvaryy". | |
4042 | xxvaryy: | |
4043 | .word 1 | |
4044 | EOF | |
4045 | rm -f conftest.nm | |
4046 | AC_TRY_COMMAND([$gcc_cv_as -mmcu=avrxmega3 conftest.s -o conftest.o]) | |
4047 | AC_TRY_COMMAND([$gcc_cv_ld -mavrxmega3 conftest.o -o conftest.elf]) | |
4048 | AC_TRY_COMMAND([$gcc_cv_nm conftest.elf > conftest.nm]) | |
98f9d0ca | 4049 | if test -s conftest.nm |
3266ddb3 GJL |
4050 | then |
4051 | if grep ' R xxvaryy' conftest.nm > /dev/null; then | |
4052 | AC_MSG_RESULT(yes) | |
98f9d0ca GJL |
4053 | AC_DEFINE(HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH, 1, |
4054 | [Define if your default avr linker script for avrxmega3 leaves .rodata in flash.]) | |
3266ddb3 GJL |
4055 | else |
4056 | AC_MSG_RESULT(no: avrxmega3 .rodata located in RAM) | |
4057 | echo "$as_me: nm output was" >&AS_MESSAGE_LOG_FD | |
4058 | cat conftest.nm >&AS_MESSAGE_LOG_FD | |
3266ddb3 | 4059 | avr_ld_ver="`$gcc_cv_ld -v | sed -e 's:^.* ::'`" |
98f9d0ca | 4060 | AC_MSG_WARN([[support for avrxmega3 .rodata in flash needs Binutils 2.29 or higher (have $avr_ld_ver)]]) |
3266ddb3 GJL |
4061 | fi |
4062 | else | |
4063 | AC_MSG_RESULT(test failed) | |
4064 | echo "$as_me: failed program was" >&AS_MESSAGE_LOG_FD | |
4065 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
98f9d0ca | 4066 | AC_MSG_WARN([[see `config.log' for details]]) |
3266ddb3 | 4067 | fi |
98f9d0ca | 4068 | rm -f conftest.s conftest.o conftest.elf conftest.nm |
0c9dc4ae GJL |
4069 | ;; |
4070 | ||
682a45fc HPN |
4071 | cris-*-*) |
4072 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
4073 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
4074 | [-no-mul-bug-abort], [.text],, | |
4075 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
4076 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
4077 | ;; | |
4078 | ||
8ada417f ZW |
4079 | sparc*-*-*) |
4080 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
4081 | [.register %g2, #scratch],, | |
4082 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
4083 | [Define if your assembler supports .register.])]) | |
4084 | ||
4085 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
4086 | [-relax], [.text],, | |
4087 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
4088 | [Define if your assembler supports -relax option.])]) | |
4089 | ||
878ee0ab DM |
4090 | gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs], |
4091 | gcc_cv_as_sparc_gotdata_op,, | |
4092 | [-K PIC], | |
4093 | [.text | |
6d7b45ad | 4094 | .align 4 |
878ee0ab DM |
4095 | foo: |
4096 | nop | |
4097 | bar: | |
4098 | sethi %gdop_hix22(foo), %g1 | |
4099 | xor %g1, %gdop_lox10(foo), %g1 | |
4100 | ld [[%l7 + %g1]], %g2, %gdop(foo)], | |
4101 | [if test x$gcc_cv_ld != x \ | |
46bc665f | 4102 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then |
7673c962 RO |
4103 | if test x$gcc_cv_objdump != x; then |
4104 | if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ | |
4105 | | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then | |
46bc665f | 4106 | gcc_cv_as_sparc_gotdata_op=no |
7673c962 | 4107 | else |
46bc665f | 4108 | gcc_cv_as_sparc_gotdata_op=yes |
46bc665f | 4109 | fi |
46bc665f | 4110 | fi |
878ee0ab DM |
4111 | fi |
4112 | rm -f conftest], | |
4113 | [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1, | |
4114 | [Define if your assembler and linker support GOTDATA_OP relocs.])]) | |
4115 | ||
8ada417f ZW |
4116 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], |
4117 | gcc_cv_as_sparc_ua_pcrel,, | |
4118 | [-K PIC], | |
4119 | [.text | |
4120 | foo: | |
4121 | nop | |
4122 | .data | |
4123 | .align 4 | |
4124 | .byte 0 | |
4125 | .uaword %r_disp32(foo)], | |
4126 | [if test x$gcc_cv_ld != x \ | |
4127 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
4128 | gcc_cv_as_sparc_ua_pcrel=yes | |
4129 | fi | |
4130 | rm -f conftest], | |
4131 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
17e9e88c | 4132 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
cf7b8b0d | 4133 | |
8ada417f ZW |
4134 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
4135 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
4136 | [-K PIC], | |
4137 | [.data | |
4138 | .align 4 | |
4139 | .byte 0x31 | |
4140 | .uaword %r_disp32(foo) | |
4141 | .byte 0x32, 0x33, 0x34 | |
4142 | .global foo | |
4143 | .hidden foo | |
4144 | foo: | |
4145 | .skip 4], | |
4146 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4147 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
4148 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
4149 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
4150 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
4151 | | grep 'DISP32' > /dev/null 2>&1; then | |
4152 | : | |
22252625 | 4153 | else |
8ada417f | 4154 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
5b68c389 | 4155 | fi |
8ada417f ZW |
4156 | fi |
4157 | rm -f conftest], | |
4158 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
4159 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
4160 | ]) # unaligned pcrel relocs | |
4161 | ||
4162 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
4163 | gcc_cv_as_sparc_offsetable_lo10,, | |
4164 | [-xarch=v9], | |
4165 | [.text | |
4166 | or %g1, %lo(ab) + 12, %g1 | |
4167 | or %g1, %lo(ab + 12), %g1], | |
4168 | [if test x$gcc_cv_objdump != x \ | |
ecb0ccbc | 4169 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
8ada417f | 4170 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
1b5c0152 | 4171 | gcc_cv_as_sparc_offsetable_lo10=yes |
8ada417f ZW |
4172 | fi], |
4173 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
4174 | [Define if your assembler supports offsetable %lo().])]) | |
e8b141b5 DM |
4175 | |
4176 | gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions], | |
4177 | gcc_cv_as_sparc_fmaf,, | |
4178 | [-xarch=v9d], | |
4179 | [.text | |
26e2f443 DM |
4180 | .register %g2, #scratch |
4181 | .register %g3, #scratch | |
e8b141b5 DM |
4182 | .align 4 |
4183 | fmaddd %f0, %f2, %f4, %f6 | |
4184 | addxccc %g1, %g2, %g3 | |
4185 | fsrl32 %f2, %f4, %f8 | |
4186 | fnaddd %f10, %f12, %f14],, | |
4187 | [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1, | |
4188 | [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])]) | |
8b98b5fd DM |
4189 | |
4190 | gcc_GAS_CHECK_FEATURE([SPARC4 instructions], | |
4191 | gcc_cv_as_sparc_sparc4,, | |
4192 | [-xarch=sparc4], | |
4193 | [.text | |
4194 | .register %g2, #scratch | |
4195 | .register %g3, #scratch | |
4196 | .align 4 | |
4197 | cxbe %g2, %g3, 1f | |
4198 | 1: cwbneg %g2, %g3, 1f | |
4199 | 1: sha1 | |
4200 | md5 | |
4201 | aes_kexpand0 %f4, %f6, %f8 | |
4202 | des_round %f38, %f40, %f42, %f44 | |
4203 | camellia_f %f54, %f56, %f58, %f60 | |
4204 | kasumi_fi_xor %f46, %f48, %f50, %f52],, | |
4205 | [AC_DEFINE(HAVE_AS_SPARC4, 1, | |
4206 | [Define if your assembler supports SPARC4 instructions.])]) | |
1f65ae7a | 4207 | |
690f24b7 JM |
4208 | gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions], |
4209 | gcc_cv_as_sparc_sparc5,, | |
4210 | [-xarch=sparc5], | |
4211 | [.text | |
4212 | .register %g2, #scratch | |
4213 | .register %g3, #scratch | |
4214 | .align 4 | |
4215 | subxc %g1, %g2, %g3 | |
4216 | fpadd8 %f0, %f2, %f4],, | |
4217 | [AC_DEFINE(HAVE_AS_SPARC5_VIS4, 1, | |
4218 | [Define if your assembler supports SPARC5 and VIS 4.0 instructions.])]) | |
4219 | ||
bcc3c3f1 JM |
4220 | gcc_GAS_CHECK_FEATURE([SPARC6 instructions], |
4221 | gcc_cv_as_sparc_sparc6,, | |
4222 | [-xarch=sparc6], | |
4223 | [.text | |
4224 | .register %g2, #scratch | |
4225 | .register %g3, #scratch | |
4226 | .align 4 | |
4227 | rd %entropy, %g1 | |
4228 | fpsll64x %f0, %f2, %f4],, | |
4229 | [AC_DEFINE(HAVE_AS_SPARC6, 1, | |
4230 | [Define if your assembler supports SPARC6 instructions.])]) | |
4231 | ||
1f65ae7a EB |
4232 | gcc_GAS_CHECK_FEATURE([LEON instructions], |
4233 | gcc_cv_as_sparc_leon,, | |
4234 | [-Aleon], | |
4235 | [.text | |
4236 | .register %g2, #scratch | |
4237 | .register %g3, #scratch | |
4238 | .align 4 | |
4239 | smac %g2, %g3, %g1 | |
4240 | umac %g2, %g3, %g1 | |
ba21a04a | 4241 | casa [[%g2]] 0xb, %g3, %g1],, |
1f65ae7a EB |
4242 | [AC_DEFINE(HAVE_AS_LEON, 1, |
4243 | [Define if your assembler supports LEON instructions.])]) | |
1cb36a98 RH |
4244 | ;; |
4245 | ||
4246 | changequote(,)dnl | |
c307e6dd | 4247 | i[34567]86-*-* | x86_64-*-*) |
1cb36a98 | 4248 | changequote([,])dnl |
f7e413e2 DK |
4249 | case $target_os in |
4250 | cygwin*) | |
4251 | # Full C++ conformance when using a shared libstdc++-v3 requires some | |
4252 | # support from the Cygwin DLL, which in more recent versions exports | |
4253 | # wrappers to aid in interposing and redirecting operators new, delete, | |
4254 | # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we | |
4255 | # are configuring for a version of Cygwin that exports the wrappers. | |
b802ae5c | 4256 | if test x$host = x$target && test x$host_cpu = xi686; then |
f7e413e2 DK |
4257 | AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) |
4258 | else | |
4259 | # Can't check presence of libc functions during cross-compile, so | |
4260 | # we just have to assume we're building for an up-to-date target. | |
4261 | gcc_ac_cygwin_dll_wrappers=yes | |
4262 | fi | |
4263 | AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, | |
4264 | [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], | |
4265 | [Define if you want to generate code by default that assumes that the | |
4266 | Cygwin DLL exports wrappers to support libstdc++ function replacement.]) | |
4267 | esac | |
d38bc601 | 4268 | case $target_os in |
ee2499b4 | 4269 | cygwin* | pe | mingw32*) |
233215fe DK |
4270 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
4271 | # definition is used unconditionally to initialise the default state of | |
4272 | # the target option variable that governs usage of the feature. | |
4273 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
4274 | [2,19,52],,[.comm foo,1,32]) | |
4275 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
4276 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
4277 | [Define if your assembler supports specifying the alignment | |
4278 | of objects allocated using the GAS .comm command.]) | |
d38bc601 BF |
4279 | # Used for DWARF 2 in PE |
4280 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
4281 | gcc_cv_as_ix86_pe_secrel32, | |
4282 | [2,15,91],, | |
4283 | [.text | |
4284 | foo: nop | |
4285 | .data | |
4286 | .secrel32 foo], | |
4287 | [if test x$gcc_cv_ld != x \ | |
4288 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
4289 | gcc_cv_as_ix86_pe_secrel32=yes | |
4290 | fi | |
4291 | rm -f conftest], | |
4292 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
4293 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
3bec79c5 DK |
4294 | # Test if the assembler supports the extended form of the .section |
4295 | # directive that specifies section alignment. LTO support uses this, | |
4296 | # but normally only after installation, so we warn but don't fail the | |
4297 | # configure if LTO is enabled but the assembler does not support it. | |
4298 | gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align, | |
4299 | [2,20,1],-fatal-warnings,[.section lto_test,"dr0"]) | |
4300 | if test x$gcc_cv_as_section_has_align != xyes; then | |
4301 | case ",$enable_languages," in | |
4302 | *,lto,*) | |
4303 | AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.]) | |
4304 | ;; | |
4305 | esac | |
4306 | fi | |
d38bc601 BF |
4307 | ;; |
4308 | esac | |
4309 | ||
8c2e5ecf RO |
4310 | gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,, |
4311 | [-xbrace_comment=no], [.text],, | |
4312 | [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1, | |
4313 | [Define if your assembler supports -xbrace_comment option.])]) | |
4314 | ||
8ada417f | 4315 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
a3a5e3d1 | 4316 | gcc_cv_as_ix86_filds,,, |
005f915e | 4317 | [filds (%ebp); fists (%ebp)],, |
a3a5e3d1 UB |
4318 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, |
4319 | [Define if your assembler uses filds and fists mnemonics.])]) | |
4320 | ||
4321 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
4322 | gcc_cv_as_ix86_fildq,,, | |
005f915e | 4323 | [fildq (%ebp); fistpq (%ebp)],, |
a3a5e3d1 UB |
4324 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, |
4325 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
8ada417f | 4326 | |
f6f5dff2 RO |
4327 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
4328 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
4329 | [cmovl.l %edx, %eax],, | |
4330 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
4331 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
4332 | ||
b6c03bcd RS |
4333 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
4334 | gcc_cv_as_ix86_ffreep,,, | |
4335 | [ffreep %st(1)],, | |
4336 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
4337 | [Define if your assembler supports the ffreep mnemonic.])]) | |
4338 | ||
ed104137 RO |
4339 | gcc_GAS_CHECK_FEATURE([.quad directive], |
4340 | gcc_cv_as_ix86_quad,,, | |
4341 | [.quad 0],, | |
4342 | [AC_DEFINE(HAVE_AS_IX86_QUAD, 1, | |
4343 | [Define if your assembler supports the .quad directive.])]) | |
4344 | ||
38ca3765 UB |
4345 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
4346 | gcc_cv_as_ix86_sahf,,, | |
953c29f7 UB |
4347 | [.code64 |
4348 | sahf],, | |
38ca3765 | 4349 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, |
953c29f7 | 4350 | [Define if your assembler supports the sahf mnemonic in 64bit mode.])]) |
38ca3765 | 4351 | |
fe04878d UB |
4352 | gcc_GAS_CHECK_FEATURE([interunit movq mnemonic], |
4353 | gcc_cv_as_ix86_interunit_movq,,, | |
4354 | [.code64 | |
4355 | movq %mm0, %rax | |
13a26a7d UB |
4356 | movq %rax, %xmm0]) |
4357 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ, | |
4358 | [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`], | |
4359 | [Define if your assembler supports interunit movq mnemonic.]) | |
fe04878d | 4360 | |
5dcfdccd KY |
4361 | gcc_GAS_CHECK_FEATURE([hle prefixes], |
4362 | gcc_cv_as_ix86_hle,,, | |
54af4523 | 4363 | [lock xacquire cmpxchg %esi, (%ecx)],, |
5dcfdccd KY |
4364 | [AC_DEFINE(HAVE_AS_IX86_HLE, 1, |
4365 | [Define if your assembler supports HLE prefixes.])]) | |
4366 | ||
afd2c302 SD |
4367 | gcc_GAS_CHECK_FEATURE([swap suffix], |
4368 | gcc_cv_as_ix86_swap,,, | |
4369 | [movl.s %esp, %ebp],, | |
4370 | [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, | |
4371 | [Define if your assembler supports the swap suffix.])]) | |
4372 | ||
68b92f78 RS |
4373 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
4374 | gcc_cv_as_ix86_diff_sect_delta,,, | |
4375 | [.section .rodata | |
4376 | .L1: | |
4377 | .long .L2-.L1 | |
4378 | .long .L3-.L1 | |
4379 | .text | |
4380 | .L3: nop | |
4381 | .L2: nop],, | |
4382 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
4383 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
4384 | ||
2433310d RO |
4385 | gcc_GAS_CHECK_FEATURE([rep and lock prefix], |
4386 | gcc_cv_as_ix86_rep_lock_prefix,,, | |
4387 | [rep movsl | |
43283548 UB |
4388 | rep ret |
4389 | rep nop | |
4390 | rep bsf %ecx, %eax | |
4391 | rep bsr %ecx, %eax | |
4bade865 | 4392 | lock addl %edi, (%eax,%esi) |
7085bfb6 UB |
4393 | lock orl $0, (%esp)],, |
4394 | [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1, | |
4395 | [Define if the assembler supports 'rep <insn>, lock <insn>'.])]) | |
2433310d | 4396 | |
88f7c49a RM |
4397 | gcc_GAS_CHECK_FEATURE([ud2 mnemonic], |
4398 | gcc_cv_as_ix86_ud2,,, | |
4399 | [ud2],, | |
4400 | [AC_DEFINE(HAVE_AS_IX86_UD2, 1, | |
4401 | [Define if your assembler supports the 'ud2' mnemonic.])]) | |
4402 | ||
e1ebd31d UB |
4403 | # Enforce 32-bit output with gas and gld. |
4404 | if test x$gas = xyes; then | |
4405 | as_ix86_gas_32_opt="--32" | |
4406 | fi | |
4407 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4408 | if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then | |
4409 | ld_ix86_gld_32_opt="-melf_i386_sol2" | |
4410 | else | |
4411 | ld_ix86_gld_32_opt="-melf_i386" | |
4412 | fi | |
4413 | fi | |
4414 | ||
8950516e | 4415 | gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc], |
e1ebd31d UB |
4416 | gcc_cv_as_ix86_tlsgdplt,, |
4417 | [$as_ix86_gas_32_opt], | |
0f24748c RO |
4418 | [call tls_gd@tlsgdplt], |
4419 | [if test x$gcc_cv_ld != x \ | |
e1ebd31d | 4420 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4421 | gcc_cv_as_ix86_tlsgdplt=yes |
4422 | fi | |
4423 | rm -f conftest], | |
8950516e | 4424 | [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1, |
0f24748c | 4425 | [Define if your assembler and linker support @tlsgdplt.])]) |
8950516e | 4426 | |
040c446d RO |
4427 | conftest_s=' |
4428 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4429 | tls_ld: | |
4430 | .section .text,"ax",@progbits | |
4431 | call tls_ld@tlsldmplt' | |
e1ebd31d | 4432 | |
8950516e | 4433 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc], |
e1ebd31d UB |
4434 | gcc_cv_as_ix86_tlsldmplt,, |
4435 | [$as_ix86_gas_32_opt], | |
040c446d | 4436 | [$conftest_s], |
0f24748c | 4437 | [if test x$gcc_cv_ld != x \ |
e1ebd31d | 4438 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
0f24748c RO |
4439 | gcc_cv_as_ix86_tlsldmplt=yes |
4440 | fi | |
caa16d41 RO |
4441 | rm -f conftest]) |
4442 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT, | |
4443 | [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`], | |
4444 | [Define to 1 if your assembler and linker support @tlsldmplt.]) | |
4445 | ||
caa16d41 RO |
4446 | conftest_s=' |
4447 | .section .text,"ax",@progbits | |
4448 | .globl _start | |
4449 | .type _start, @function | |
4450 | _start: | |
4451 | leal value@tlsldm(%ebx), %eax | |
4452 | call ___tls_get_addr@plt | |
4453 | ||
4454 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4455 | .type value, @object | |
4456 | value:' | |
4457 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], | |
4458 | gcc_cv_as_ix86_tlsldm,, | |
49677530 | 4459 | [$as_ix86_gas_32_opt], |
caa16d41 RO |
4460 | [$conftest_s], |
4461 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
49677530 | 4462 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then |
caa16d41 RO |
4463 | if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ |
4464 | || dis conftest 2>/dev/null | grep nop > /dev/null; then | |
4465 | gcc_cv_as_ix86_tlsldm=yes | |
4466 | fi | |
4467 | fi | |
4468 | rm -f conftest]) | |
4469 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM, | |
4470 | [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], | |
4471 | [Define to 1 if your assembler and linker support @tlsldm.]) | |
8950516e | 4472 | |
c0597759 L |
4473 | conftest_s=' |
4474 | .data | |
4475 | bar: | |
4476 | .byte 1 | |
4477 | .text | |
4478 | .global _start | |
4479 | _start: | |
4480 | cmpl $0, bar@GOT | |
4481 | jmp *_start@GOT' | |
4482 | gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], | |
4483 | gcc_cv_as_ix86_got32x,, | |
49677530 | 4484 | [$as_ix86_gas_32_opt], |
c0597759 L |
4485 | [$conftest_s], |
4486 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4487 | && test x$gcc_cv_readelf != x \ | |
4488 | && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ | |
4489 | | grep R_386_GOT32X > /dev/null 2>&1 \ | |
49677530 | 4490 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then |
c0597759 L |
4491 | if $gcc_cv_objdump -dw conftest 2>&1 \ |
4492 | | grep 0xffffff > /dev/null 2>&1; then | |
4493 | gcc_cv_as_ix86_got32x=no | |
4494 | else | |
4495 | gcc_cv_as_ix86_got32x=yes | |
4496 | fi | |
4497 | fi | |
4498 | rm -f conftest]) | |
4499 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, | |
4500 | [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], | |
4501 | [Define 0/1 if your assembler and linker support @GOT.]) | |
e1ebd31d UB |
4502 | |
4503 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
4504 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0], | |
4505 | [$as_ix86_gas_32_opt], | |
4506 | [ .text | |
4507 | .L0: | |
4508 | nop | |
4509 | .data | |
4510 | .long .L0@GOTOFF]) | |
4511 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
4512 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
4513 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
4514 | ||
de86ff8f L |
4515 | conftest_s=' |
4516 | .section .text,"ax",@progbits | |
4517 | .globl _start | |
4518 | .type _start, @function | |
4519 | _start: | |
4520 | leal ld@tlsldm(%ecx), %eax | |
4521 | call *___tls_get_addr@GOT(%ecx) | |
4522 | leal gd@tlsgd(%ecx), %eax | |
4523 | call *___tls_get_addr@GOT(%ecx) | |
4524 | ||
4525 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4526 | .type ld, @object | |
4527 | ld: | |
4528 | .byte 0 | |
4529 | .globl gd | |
4530 | .type gd, @object | |
4531 | gd: | |
4532 | .byte 0' | |
4533 | gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT], | |
4534 | gcc_cv_as_ix86_tls_get_addr_via_got,, | |
4535 | [$as_ix86_gas_32_opt], | |
4536 | [$conftest_s], | |
4537 | [if test x$gcc_cv_ld != x \ | |
4538 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then | |
4539 | gcc_cv_as_ix86_tls_get_addr_via_got=yes | |
4540 | fi | |
4541 | rm -f conftest]) | |
4542 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLS_GET_ADDR_GOT, | |
4543 | [`if test x"$gcc_cv_as_ix86_tls_get_addr_via_got" = xyes; then echo 1; else echo 0; fi`], | |
4544 | [Define 0/1 if your assembler and linker support calling ___tls_get_addr via GOT.]) | |
1cb36a98 | 4545 | ;; |
ef1ecf87 RH |
4546 | |
4547 | ia64*-*-*) | |
8ada417f ZW |
4548 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
4549 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
cfa9ee99 | 4550 | [ .text |
ef1ecf87 RH |
4551 | addl r15 = @ltoffx(x#), gp |
4552 | ;; | |
cfa9ee99 | 4553 | ld8.mov r16 = [[r15]], x#],, |
8ada417f ZW |
4554 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
4555 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
4556 | ||
ef1ecf87 | 4557 | ;; |
8ada417f | 4558 | |
2c4a9cff | 4559 | powerpc*-*-*) |
4b7a5264 | 4560 | |
8ada417f | 4561 | case $target in |
8af4d362 PB |
4562 | *-*-darwin*) |
4563 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
4564 | gcc_cv_as_machine_directive,,, | |
4565 | [ .machine ppc7400]) | |
4566 | if test x$gcc_cv_as_machine_directive != xyes; then | |
4567 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
4568 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
4569 | test x$build = x$target && exit 1 | |
4570 | fi | |
4b7a5264 DE |
4571 | ;; |
4572 | esac | |
4573 | ||
4574 | case $target in | |
4575 | *-*-aix*) conftest_s=' .machine "pwr5" | |
4576 | .csect .text[[PR]] | |
4577 | mfcr 3,128';; | |
4578 | *-*-darwin*) conftest_s=' .text | |
6b37db3c | 4579 | mfcr r3,128';; |
4c67db14 | 4580 | *) conftest_s=' .machine power4 |
d2ab3e37 | 4581 | .text |
6b37db3c | 4582 | mfcr 3,128';; |
8ada417f | 4583 | esac |
8ada417f ZW |
4584 | |
4585 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
4586 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
4587 | [$conftest_s],, | |
4588 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
4589 | [Define if your assembler supports mfcr field.])]) | |
432218ba | 4590 | |
7f970b70 AM |
4591 | case $target in |
4592 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
4593 | LCF..0: | |
4594 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
4595 | *-*-darwin*) | |
4596 | conftest_s=' .text | |
4597 | LCF0: | |
4598 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
4599 | *) conftest_s=' .text | |
4600 | .LCF0: | |
4601 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
4602 | esac | |
4603 | ||
695d8830 AS |
4604 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
4605 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
4606 | [$conftest_s],, | |
4607 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
4608 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
4609 | ||
d40c9e33 PB |
4610 | case $target in |
4611 | *-*-aix*) conftest_s=' .machine "pwr7" | |
4612 | .csect .text[[PR]] | |
4613 | lxvd2x 1,2,3';; | |
4614 | *) conftest_s=' .machine power7 | |
4615 | .text | |
4616 | lxvd2x 1,2,3';; | |
4617 | esac | |
4618 | ||
4619 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
cacf1ca8 | 4620 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
d40c9e33 PB |
4621 | [$conftest_s],, |
4622 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
4623 | [Define if your assembler supports VSX instructions.])]) | |
4624 | ||
e51917ae JM |
4625 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
4626 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
4627 | [.gnu_attribute 4,1],, | |
4628 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4629 | [Define if your assembler supports .gnu_attribute.])]) | |
9752c4ad AM |
4630 | |
4631 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
4632 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
4633 | [ bl __tls_get_addr(x@tlsgd)],, | |
4634 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
4635 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
636cf8b1 | 4636 | |
157bb85d UW |
4637 | gcc_GAS_CHECK_FEATURE([prologue entry point marker support], |
4638 | gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings, | |
4639 | [ .reloc .,R_PPC64_ENTRY; nop],, | |
4640 | [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1, | |
4641 | [Define if your assembler supports the R_PPC64_ENTRY relocation.])]) | |
4642 | ||
636cf8b1 RS |
4643 | case $target in |
4644 | *-*-aix*) | |
a52f938b | 4645 | gcc_GAS_CHECK_FEATURE([AIX .ref support], |
e8548a47 | 4646 | gcc_cv_as_aix_ref, [2,21,0],, |
636cf8b1 RS |
4647 | [ .csect stuff[[rw]] |
4648 | stuff: | |
4649 | .long 1 | |
4650 | .extern sym | |
4651 | .ref sym | |
4652 | ],, | |
4653 | [AC_DEFINE(HAVE_AS_REF, 1, | |
4654 | [Define if your assembler supports .ref])]) | |
53b5ce19 | 4655 | |
a52f938b | 4656 | gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support], |
51fbbb92 | 4657 | gcc_cv_as_aix_dwloc, [2,21,0],, |
a52f938b DE |
4658 | [ .dwsect 0xA0000 |
4659 | Lframe..0: | |
eb657a49 | 4660 | .vbyte 4,Lframe..0 |
51fbbb92 DE |
4661 | ],, |
4662 | [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1, | |
a52f938b | 4663 | [Define if your assembler supports AIX debug frame section label reference.])]) |
51fbbb92 DE |
4664 | ;; |
4665 | esac | |
4666 | ;; | |
4667 | ||
8ada417f ZW |
4668 | mips*-*-*) |
4669 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
4670 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
4671 | [ lw $4,%gp_rel(foo)($4)],, | |
4672 | [if test x$target_cpu_default = x | |
4673 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
4674 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
4675 | fi]) | |
51fbbb92 | 4676 | |
4551169f RS |
4677 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
4678 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
4679 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
4680 | [Define if the assembler understands -mno-shared.])]) | |
dcb957d9 JM |
4681 | |
4682 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4683 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
4684 | [.gnu_attribute 4,1],, | |
4685 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4686 | [Define if your assembler supports .gnu_attribute.])]) | |
a44380d2 | 4687 | |
050af144 | 4688 | gcc_GAS_CHECK_FEATURE([.module support], |
a871c139 MF |
4689 | gcc_cv_as_mips_dot_module,,[-32], |
4690 | [.module mips2 | |
4691 | .module fp=xx],, | |
050af144 MF |
4692 | [AC_DEFINE(HAVE_AS_DOT_MODULE, 1, |
4693 | [Define if your assembler supports .module.])]) | |
4694 | if test x$gcc_cv_as_mips_dot_module = xno \ | |
4695 | && test x$with_fp_32 != x; then | |
4696 | AC_MSG_ERROR( | |
4697 | [Requesting --with-fp-32= requires assembler support for .module.]) | |
4698 | fi | |
4699 | ||
22c4c869 | 4700 | gcc_GAS_CHECK_FEATURE([.micromips support], |
b1485a33 | 4701 | gcc_cv_as_micromips_support,,[--fatal-warnings], |
22c4c869 CM |
4702 | [.set micromips],, |
4703 | [AC_DEFINE(HAVE_GAS_MICROMIPS, 1, | |
4704 | [Define if your assembler supports the .set micromips directive])]) | |
4705 | ||
a44380d2 JM |
4706 | gcc_GAS_CHECK_FEATURE([.dtprelword support], |
4707 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
4708 | [.section .tdata,"awT",@progbits | |
4709 | x: | |
4710 | .word 2 | |
4711 | .text | |
4712 | .dtprelword x+0x8000],, | |
4713 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
4714 | [Define if your assembler supports .dtprelword.])]) | |
b53da244 | 4715 | |
293b77b0 CF |
4716 | gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support], |
4717 | gcc_cv_as_mips_dspr1_mult,,, | |
4718 | [ .set mips32r2 | |
4719 | .set nodspr2 | |
4720 | .set dsp | |
4721 | madd $ac3,$4,$5 | |
4722 | maddu $ac3,$4,$5 | |
4723 | msub $ac3,$4,$5 | |
4724 | msubu $ac3,$4,$5 | |
4725 | mult $ac3,$4,$5 | |
4726 | multu $ac3,$4,$5],, | |
4727 | [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1, | |
4728 | [Define if your assembler supports DSPR1 mult.])]) | |
4729 | ||
b53da244 AN |
4730 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) |
4731 | gcc_cv_as_ld_jalr_reloc=no | |
4732 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
4733 | if test $in_tree_ld = yes ; then | |
4734 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
4735 | && test $in_tree_ld_is_elf = yes; then | |
4736 | gcc_cv_as_ld_jalr_reloc=yes | |
4737 | fi | |
4738 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
4739 | echo ' .ent x' > conftest.s | |
1e1f96b5 CM |
4740 | echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s |
4741 | echo ' lw $25,%call16(y)($28)' >> conftest.s | |
b53da244 AN |
4742 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s |
4743 | echo '1: jalr $25' >> conftest.s | |
4744 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
4745 | echo '1: jalr $25' >> conftest.s | |
4746 | echo ' .end x' >> conftest.s | |
4747 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
4748 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
bc492e47 RO |
4749 | if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \ |
4750 | && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then | |
b53da244 AN |
4751 | gcc_cv_as_ld_jalr_reloc=yes |
4752 | fi | |
4753 | fi | |
4754 | rm -f conftest.* | |
4755 | fi | |
4756 | fi | |
4757 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
4758 | if test x$target_cpu_default = x; then | |
4759 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
4760 | else | |
4761 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
4762 | fi | |
4763 | fi | |
4764 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
49576e25 RS |
4765 | |
4766 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
4767 | [gcc_cv_ld_mips_personality_relaxation], | |
4768 | [gcc_cv_ld_mips_personality_relaxation=no | |
4769 | if test $in_tree_ld = yes ; then | |
4770 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
4771 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
4772 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
4773 | gcc_cv_ld_mips_personality_relaxation=yes | |
4774 | fi | |
4775 | elif test x$gcc_cv_as != x \ | |
4776 | -a x$gcc_cv_ld != x \ | |
4777 | -a x$gcc_cv_readelf != x ; then | |
4778 | cat > conftest.s <<EOF | |
4779 | .cfi_startproc | |
4780 | .cfi_personality 0x80,indirect_ptr | |
4781 | .ent test | |
4782 | test: | |
4783 | nop | |
4784 | .end test | |
4785 | .cfi_endproc | |
4786 | ||
4787 | .section .data,"aw",@progbits | |
4788 | indirect_ptr: | |
4789 | .dc.a personality | |
4790 | EOF | |
4791 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
4792 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
4793 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
4794 | | grep TEXTREL > /dev/null 2>&1; then | |
4795 | : | |
4796 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
4797 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
4798 | : | |
4799 | else | |
4800 | gcc_cv_ld_mips_personality_relaxation=yes | |
4801 | fi | |
4802 | fi | |
4803 | fi | |
4804 | rm -f conftest.s conftest.o conftest]) | |
4805 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
4806 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
4807 | [Define if your linker can relax absolute .eh_frame personality | |
4808 | pointers into PC-relative form.]) | |
4809 | fi | |
ff3f3951 MR |
4810 | |
4811 | gcc_GAS_CHECK_FEATURE([-mnan= support], | |
4812 | gcc_cv_as_mips_nan,, | |
4813 | [-mnan=2008],,, | |
4814 | [AC_DEFINE(HAVE_AS_NAN, 1, | |
4815 | [Define if the assembler understands -mnan=.])]) | |
4816 | if test x$gcc_cv_as_mips_nan = xno \ | |
4817 | && test x$with_nan != x; then | |
4818 | AC_MSG_ERROR( | |
4819 | [Requesting --with-nan= requires assembler support for -mnan=]) | |
4820 | fi | |
dbad5e72 | 4821 | ;; |
45901378 AK |
4822 | s390*-*-*) |
4823 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4824 | gcc_cv_as_s390_gnu_attribute, [2,18,0],, | |
4825 | [.gnu_attribute 8,1],, | |
4826 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4827 | [Define if your assembler supports .gnu_attribute.])]) | |
ec47b086 DV |
4828 | gcc_GAS_CHECK_FEATURE([.machine and .machinemode support], |
4829 | gcc_cv_as_s390_machine_machinemode, [2,24,0],, | |
4830 | [ .machinemode push | |
4831 | .machinemode pop | |
4832 | .machine push | |
4833 | .machine pop],, | |
4834 | [AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1, | |
4835 | [Define if your assembler supports .machine and .machinemode.])]) | |
4836 | gcc_GAS_CHECK_FEATURE([architecture modifiers support], | |
4837 | gcc_cv_as_s390_architecture_modifiers, [2,26,0],, | |
4838 | [ .machine z13+vx ],, | |
4839 | [AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1, | |
4840 | [Define if your assembler supports architecture modifiers.])]) | |
45901378 | 4841 | ;; |
dbad5e72 SE |
4842 | esac |
4843 | ||
4844 | # Mips and HP-UX need the GNU assembler. | |
4845 | # Linux on IA64 might be able to use the Intel assembler. | |
8ada417f | 4846 | |
dbad5e72 SE |
4847 | case "$target" in |
4848 | mips*-*-* | *-*-hpux* ) | |
82563d35 RS |
4849 | if test x$gas_flag = xyes \ |
4850 | || test x"$host" != x"$build" \ | |
4851 | || test ! -x "$gcc_cv_as" \ | |
4852 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
4853 | : | |
4854 | else | |
4855 | echo "*** This configuration requires the GNU assembler" >&2 | |
4856 | exit 1 | |
4857 | fi | |
8ada417f ZW |
4858 | ;; |
4859 | esac | |
dbad5e72 | 4860 | |
9d147085 RH |
4861 | # ??? Not all targets support dwarf2 debug_line, even within a version |
4862 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
4863 | # info to the output file. So, as supported targets are added to gas 2.11, | |
4864 | # add some instruction here to (also) show we expect this might work. | |
4865 | # ??? Once 2.11 is released, probably need to add first known working | |
4866 | # version to the per-target configury. | |
7fa2619a | 4867 | case "$cpu_type" in |
56856b58 | 4868 | aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \ |
7c22e690 CZ |
4869 | | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \ |
4870 | | tilegx | tilepro | visium | xstormy16 | xtensa) | |
9d147085 RH |
4871 | insn="nop" |
4872 | ;; | |
7fa2619a | 4873 | ia64 | s390) |
9d147085 RH |
4874 | insn="nop 0" |
4875 | ;; | |
7fa2619a | 4876 | mmix) |
2853bc5a HPN |
4877 | insn="swym 0" |
4878 | ;; | |
8ada417f ZW |
4879 | esac |
4880 | if test x"$insn" != x; then | |
4881 | conftest_s="\ | |
4882 | .file 1 \"conftest.s\" | |
4883 | .loc 1 3 0 | |
4884 | $insn" | |
4885 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
4886 | gcc_cv_as_dwarf2_debug_line, | |
4887 | [elf,2,11,0],, [$conftest_s], | |
080a5bb0 EB |
4888 | [if test x$gcc_cv_objdump != x \ |
4889 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
4890 | | grep debug_line > /dev/null 2>&1; then | |
8ada417f ZW |
4891 | gcc_cv_as_dwarf2_debug_line=yes |
4892 | fi]) | |
4893 | ||
4894 | # The .debug_line file table must be in the exact order that | |
4895 | # we specified the files, since these indices are also used | |
4896 | # by DW_AT_decl_file. Approximate this test by testing if | |
4897 | # the assembler bitches if the same index is assigned twice. | |
4898 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
4899 | gcc_cv_as_dwarf2_file_buggy,,, | |
4900 | [ .file 1 "foo.s" | |
4901 | .file 1 "bar.s"]) | |
4902 | ||
4903 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
4904 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
bd2b9f1e | 4905 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
8ada417f | 4906 | [Define if your assembler supports dwarf2 .file/.loc directives, |
eaec9b3d | 4907 | and preserves file table indices exactly as given.]) |
bd2b9f1e AO |
4908 | |
4909 | if test $gcc_cv_as_leb128 = yes; then | |
4910 | conftest_s="\ | |
4911 | .file 1 \"conftest.s\" | |
4912 | .loc 1 3 0 view .LVU1 | |
4913 | $insn | |
4914 | .data | |
4915 | .uleb128 .LVU1 | |
4916 | .uleb128 .LVU1 | |
4917 | " | |
4918 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support], | |
4919 | gcc_cv_as_dwarf2_debug_view, | |
4920 | [elf,2,27,0],,[$conftest_s],, | |
4921 | [AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1, | |
4922 | [Define if your assembler supports views in dwarf2 .loc directives.])]) | |
4923 | fi | |
8ada417f ZW |
4924 | fi |
4925 | ||
4926 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
4927 | gcc_cv_as_gdwarf2_flag, | |
4928 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
4929 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
4930 | [Define if your assembler supports the --gdwarf2 option.])]) | |
4931 | ||
4932 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
4933 | gcc_cv_as_gstabs_flag, | |
d9f069ab | 4934 | [elf,2,11,0], [--gstabs], [$insn],, |
8ada417f ZW |
4935 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, |
4936 | [Define if your assembler supports the --gstabs option.])]) | |
c8aea42c PB |
4937 | |
4938 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
4939 | gcc_cv_as_debug_prefix_map_flag, | |
303a4698 | 4940 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
c8aea42c PB |
4941 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
4942 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
9d147085 | 4943 | fi |
5f0e9ea2 | 4944 | |
29d7cbd1 | 4945 | gcc_GAS_CHECK_FEATURE([compressed debug sections], |
7320a4b5 | 4946 | gcc_cv_as_compress_debug,,,, |
29d7cbd1 RO |
4947 | [# gas compiled without zlib cannot compress debug sections and warns |
4948 | # about it, but still exits successfully. So check for this, too. | |
4949 | if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null | |
4950 | then | |
4951 | gcc_cv_as_compress_debug=0 | |
7320a4b5 RO |
4952 | # Since binutils 2.26, gas supports --compress-debug-sections=type, |
4953 | # defaulting to the ELF gABI format. | |
4954 | elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1 | |
4955 | then | |
4956 | gcc_cv_as_compress_debug=2 | |
4957 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
4958 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
4959 | # Before binutils 2.26, gas only supported --compress-debug-options and | |
4960 | # emitted the traditional GNU format. | |
29d7cbd1 RO |
4961 | elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1 |
4962 | then | |
4963 | gcc_cv_as_compress_debug=1 | |
4964 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
4965 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
4966 | else | |
4967 | gcc_cv_as_compress_debug=0 | |
29d7cbd1 RO |
4968 | fi]) |
4969 | AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug, | |
4970 | [Define to the level of your assembler's compressed debug section support.]) | |
4971 | AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option", | |
4972 | [Define to the assembler option to enable compressed debug sections.]) | |
4973 | AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option", | |
4974 | [Define to the assembler option to disable compressed debug sections.]) | |
4975 | ||
28e6bb13 NC |
4976 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
4977 | ,, | |
4978 | [.lcomm bar,4,16],, | |
4979 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
4980 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
4981 | ||
75a2bcc0 JM |
4982 | if test x$with_sysroot = x && test x$host = x$target \ |
4983 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
4984 | && test "$prefix" != "NONE"; then | |
4985 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
4986 | [Define to PREFIX/include if cpp should also search that directory.]) | |
4987 | fi | |
4988 | ||
75a2bcc0 JM |
4989 | # Determine the version of glibc, if any, used on the target. |
4990 | AC_MSG_CHECKING([for target glibc version]) | |
4991 | AC_ARG_WITH([glibc-version], | |
4992 | [AS_HELP_STRING([--with-glibc-version=M.N], | |
4993 | [assume GCC used with glibc version M.N or later])], [ | |
4994 | if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then | |
4995 | glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` | |
4996 | glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` | |
4997 | else | |
4998 | AC_MSG_ERROR([option --with-glibc-version requires a version number M.N]) | |
4999 | fi], [ | |
5000 | glibc_version_major=0 | |
5001 | glibc_version_minor=0 | |
5002 | [if test -f $target_header_dir/features.h \ | |
5003 | && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \ | |
5004 | && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then | |
5005 | glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'` | |
5006 | glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'` | |
5007 | fi]]) | |
5008 | AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor]) | |
2f73a6c7 JM |
5009 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major], |
5010 | [GNU C Library major version number used on the target, or 0.]) | |
5011 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor], | |
5012 | [GNU C Library minor version number used on the target, or 0.]) | |
75a2bcc0 | 5013 | |
e31bcd1b | 5014 | AC_ARG_ENABLE(gnu-unique-object, |
87e6d9dc TB |
5015 | [AS_HELP_STRING([--enable-gnu-unique-object], |
5016 | [enable the use of the @gnu_unique_object ELF extension on glibc systems])], | |
e31bcd1b JM |
5017 | [case $enable_gnu_unique_object in |
5018 | yes | no) ;; | |
5019 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
5020 | Valid choices are 'yes' and 'no'.]) ;; | |
5021 | esac], | |
5022 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
5023 | [elf,2,19,52],, | |
5ab22850 RR |
5024 | [.type foo, '$target_type_format_char'gnu_unique_object],, |
5025 | # We need to unquote above to to use the definition from config.gcc. | |
e31bcd1b | 5026 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
75a2bcc0 JM |
5027 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )] |
5028 | )]) | |
e31bcd1b JM |
5029 | if test x$enable_gnu_unique_object = xyes; then |
5030 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
5031 | [Define if your assembler supports @gnu_unique_object.]) | |
5032 | fi | |
5033 | ||
03943c05 AO |
5034 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
5035 | [gcc_cv_as_line_zero], | |
5036 | [gcc_cv_as_line_zero=no | |
5037 | if test $in_tree_gas = yes; then | |
cf0eb7a1 | 5038 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
03943c05 AO |
5039 | elif test "x$gcc_cv_as" != x; then |
5040 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
5041 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
5042 | test "x`cat conftest.out`" = x | |
5043 | then | |
5044 | gcc_cv_as_line_zero=yes | |
5045 | else | |
5046 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
5047 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
5048 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
5049 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
5050 | fi | |
5051 | rm -f conftest.o conftest.s conftest.out | |
5052 | fi]) | |
5053 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
5054 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
5055 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
5056 | fi | |
5057 | ||
25e08379 PP |
5058 | AC_MSG_CHECKING(support for thin archives) |
5059 | thin_archive_support=no | |
5060 | echo 'int main (void) { return 0; }' > conftest.c | |
5061 | if ($AR --version | sed 1q | grep "GNU ar" \ | |
5062 | && $CC $CFLAGS -c conftest.c \ | |
5063 | && $AR rcT conftest.a conftest.o \ | |
5064 | && $CC $CFLAGS $LDFLAGS -o conftest conftest.a) >/dev/null 2>&1; then | |
5065 | thin_archive_support=yes | |
5066 | fi | |
5067 | rm -f conftest.c conftest.o conftest.a conftest | |
5068 | AC_MSG_RESULT($thin_archive_support) | |
5069 | AC_SUBST(thin_archive_support) | |
5070 | ||
275b60d6 JJ |
5071 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
5072 | gcc_cv_ld_eh_frame_hdr=no | |
34a86c2b | 5073 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
5074 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5075 | && test $in_tree_ld_is_elf = yes; then | |
275b60d6 JJ |
5076 | gcc_cv_ld_eh_frame_hdr=yes |
5077 | fi | |
5078 | elif test x$gcc_cv_ld != x; then | |
6961669f RO |
5079 | if echo "$ld_ver" | grep GNU > /dev/null; then |
5080 | # Check if linker supports --eh-frame-hdr option | |
8dc877eb | 5081 | if $gcc_cv_ld --help 2>&1 | grep eh-frame-hdr > /dev/null; then |
6961669f RO |
5082 | gcc_cv_ld_eh_frame_hdr=yes |
5083 | fi | |
5084 | else | |
5085 | case "$target" in | |
5086 | *-*-solaris2*) | |
e279edb0 RO |
5087 | # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251. |
5088 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then | |
6961669f RO |
5089 | gcc_cv_ld_eh_frame_hdr=yes |
5090 | fi | |
5091 | ;; | |
5092 | esac | |
5093 | fi | |
275b60d6 | 5094 | fi |
232b67d9 | 5095 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
275b60d6 JJ |
5096 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
5097 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
6961669f | 5098 | [Define if your linker supports .eh_frame_hdr.]) |
275b60d6 JJ |
5099 | fi |
5100 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
5101 | ||
5022315a RO |
5102 | AC_MSG_CHECKING(linker CIEv3 in .eh_frame support) |
5103 | gcc_cv_ld_eh_frame_ciev3=no | |
5104 | if test $in_tree_ld = yes ; then | |
5105 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5106 | && test $in_tree_ld_is_elf = yes; then | |
5107 | gcc_cv_ld_eh_frame_ciev3=yes | |
5108 | fi | |
5109 | elif test x$gcc_cv_ld != x; then | |
5110 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5111 | gcc_cv_ld_eh_frame_ciev3=yes | |
5112 | if test 0"$ld_date" -lt 20040513; then | |
5113 | if test -n "$ld_date"; then | |
5114 | # If there was date string, but was earlier than 2004-05-13, fail | |
5115 | gcc_cv_ld_eh_frame_ciev3=no | |
5116 | elif test "$ld_vers_major" -lt 2; then | |
5117 | gcc_cv_ld_eh_frame_ciev3=no | |
5118 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
5119 | gcc_cv_ld_eh_frame_ciev3=no | |
5120 | fi | |
5121 | fi | |
5122 | else | |
5123 | case "$target" in | |
5124 | *-*-solaris2*) | |
5125 | # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1. | |
5126 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then | |
5127 | gcc_cv_ld_eh_frame_ciev3=yes | |
5128 | fi | |
5129 | ;; | |
5130 | esac | |
5131 | fi | |
5132 | fi | |
5133 | AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3, | |
5134 | [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`], | |
5135 | [Define 0/1 if your linker supports CIE v3 in .eh_frame.]) | |
5136 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3) | |
5137 | ||
24a4dd31 JJ |
5138 | AC_MSG_CHECKING(linker position independent executable support) |
5139 | gcc_cv_ld_pie=no | |
5140 | if test $in_tree_ld = yes ; then | |
df2a1cc4 RO |
5141 | case "$target" in |
5142 | # Full PIE support on Solaris was only introduced in gld 2.26. | |
5143 | *-*-solaris2*) gcc_gld_pie_min_version=26 ;; | |
5144 | *) gcc_gld_pie_min_version=15 ;; | |
5145 | esac | |
5146 | 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 | 5147 | && test $in_tree_ld_is_elf = yes; then |
24a4dd31 JJ |
5148 | gcc_cv_ld_pie=yes |
5149 | fi | |
5150 | elif test x$gcc_cv_ld != x; then | |
df2a1cc4 | 5151 | # Check if linker supports -pie option |
8dc877eb | 5152 | if $gcc_cv_ld --help 2>&1 | grep -- -pie > /dev/null; then |
df2a1cc4 RO |
5153 | gcc_cv_ld_pie=yes |
5154 | case "$target" in | |
5155 | *-*-solaris2*) | |
5156 | if echo "$ld_ver" | grep GNU > /dev/null \ | |
5157 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5158 | gcc_cv_ld_pie=no | |
5159 | fi | |
5160 | ;; | |
5161 | esac | |
5162 | else | |
5163 | case "$target" in | |
5164 | *-*-solaris2.1[[1-9]]*) | |
f021f1d3 | 5165 | # Solaris 11.3 added PIE support. |
df2a1cc4 RO |
5166 | if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then |
5167 | gcc_cv_ld_pie=yes | |
24a4dd31 | 5168 | fi |
df2a1cc4 RO |
5169 | ;; |
5170 | esac | |
5171 | fi | |
24a4dd31 JJ |
5172 | fi |
5173 | if test x"$gcc_cv_ld_pie" = xyes; then | |
5174 | AC_DEFINE(HAVE_LD_PIE, 1, | |
df2a1cc4 | 5175 | [Define if your linker supports PIE option.]) |
24a4dd31 JJ |
5176 | fi |
5177 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
77ad54d9 ST |
5178 | |
5179 | AC_MSG_CHECKING(linker PIE support with copy reloc) | |
5180 | gcc_cv_ld_pie_copyreloc=no | |
5181 | if test $gcc_cv_ld_pie = yes ; then | |
5182 | if test $in_tree_ld = yes ; then | |
5183 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
5184 | gcc_cv_ld_pie_copyreloc=yes | |
5185 | fi | |
5186 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5187 | # Check if linker supports -pie option with copy reloc | |
5188 | case "$target" in | |
5189 | i?86-*-linux* | x86_64-*-linux*) | |
5190 | cat > conftest1.s <<EOF | |
5191 | .globl a_glob | |
5192 | .data | |
5193 | .type a_glob, @object | |
5194 | .size a_glob, 4 | |
5195 | a_glob: | |
5196 | .long 2 | |
5197 | EOF | |
5198 | cat > conftest2.s <<EOF | |
5199 | .text | |
5200 | .globl main | |
5201 | .type main, @function | |
5202 | main: | |
5203 | movl %eax, a_glob(%rip) | |
5204 | .size main, .-main | |
7b3592ee L |
5205 | .globl ptr |
5206 | .section .data.rel,"aw",@progbits | |
5207 | .type ptr, @object | |
5208 | ptr: | |
5209 | .quad a_glob | |
77ad54d9 ST |
5210 | EOF |
5211 | if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5212 | && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \ | |
5213 | && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5214 | && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then | |
5215 | gcc_cv_ld_pie_copyreloc=yes | |
5216 | fi | |
5217 | rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s | |
5218 | ;; | |
5219 | esac | |
5220 | fi | |
77ad54d9 | 5221 | fi |
1be71446 L |
5222 | AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC, |
5223 | [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`], | |
5224 | [Define 0/1 if your linker supports -pie option with copy reloc.]) | |
77ad54d9 | 5225 | AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc) |
24a4dd31 | 5226 | |
22ba88ef EB |
5227 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
5228 | gcc_cv_ld_eh_gc_sections=no | |
5229 | if test $in_tree_ld = yes ; then | |
5230 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5231 | && test $in_tree_ld_is_elf = yes; then | |
5232 | gcc_cv_ld_eh_gc_sections=yes | |
5233 | fi | |
5234 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
5235 | cat > conftest.s <<EOF | |
5236 | .section .text | |
5237 | .globl _start | |
5238 | .type _start, @function | |
5239 | _start: | |
5240 | .long foo | |
5241 | .size _start, .-_start | |
5242 | .section .text.foo,"ax",@progbits | |
5243 | .type foo, @function | |
5244 | foo: | |
5245 | .long 0 | |
5246 | .size foo, .-foo | |
5247 | .section .gcc_except_table.foo,"a",@progbits | |
5248 | .L0: | |
5249 | .long 0 | |
5250 | .section .eh_frame,"a",@progbits | |
5251 | .long .L0 | |
5252 | EOF | |
5253 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5254 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5255 | | grep "gc-sections option ignored" > /dev/null; then | |
5256 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
5257 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5258 | | grep gcc_except_table > /dev/null; then | |
22ba88ef | 5259 | gcc_cv_ld_eh_gc_sections=yes |
e9d207d9 EB |
5260 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
5261 | if test x$gcc_cv_as_comdat_group != xyes; then | |
5262 | gcc_cv_ld_eh_gc_sections=no | |
5263 | cat > conftest.s <<EOF | |
5264 | .section .text | |
5265 | .globl _start | |
5266 | .type _start, @function | |
5267 | _start: | |
5268 | .long foo | |
5269 | .size _start, .-_start | |
5270 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
5271 | .type foo, @function | |
5272 | foo: | |
5273 | .long 0 | |
5274 | .size foo, .-foo | |
5275 | .section .gcc_except_table.foo,"a",@progbits | |
5276 | .L0: | |
5277 | .long 0 | |
5278 | .section .eh_frame,"a",@progbits | |
5279 | .long .L0 | |
5280 | EOF | |
5281 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5282 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5283 | | grep "gc-sections option ignored" > /dev/null; then | |
5284 | gcc_cv_ld_eh_gc_sections=no | |
2e2b183b RO |
5285 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5286 | | grep gcc_except_table > /dev/null; then | |
e9d207d9 EB |
5287 | gcc_cv_ld_eh_gc_sections=yes |
5288 | fi | |
5289 | fi | |
5290 | fi | |
22ba88ef EB |
5291 | fi |
5292 | fi | |
5293 | rm -f conftest.s conftest.o conftest | |
5294 | fi | |
e9d207d9 EB |
5295 | case "$target" in |
5296 | hppa*-*-linux*) | |
5297 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
5298 | gcc_cv_ld_eh_gc_sections=no | |
5299 | ;; | |
5300 | esac | |
22ba88ef EB |
5301 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
5302 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
5303 | [Define if your linker supports garbage collection of | |
5304 | sections in presence of EH frames.]) | |
5305 | fi | |
5306 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
5307 | ||
1b500976 JJ |
5308 | AC_MSG_CHECKING(linker EH garbage collection of sections bug) |
5309 | gcc_cv_ld_eh_gc_sections_bug=no | |
5310 | if test $in_tree_ld = yes ; then | |
5311 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \ | |
5312 | && test $in_tree_ld_is_elf = yes; then | |
5313 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5314 | fi | |
5315 | elif test x$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 | |
5316 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5317 | cat > conftest.s <<EOF | |
5318 | .section .text | |
5319 | .globl _start | |
5320 | .type _start, @function | |
5321 | _start: | |
5322 | .long foo | |
5323 | .size _start, .-_start | |
5324 | .section .text.startup.foo,"ax",@progbits | |
5325 | .type foo, @function | |
5326 | foo: | |
5327 | .long 0 | |
5328 | .size foo, .-foo | |
5329 | .section .gcc_except_table.foo,"a",@progbits | |
5330 | .L0: | |
5331 | .long 0 | |
5332 | .section .eh_frame,"a",@progbits | |
5333 | .long .L0 | |
5334 | EOF | |
5335 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5336 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5337 | | grep "gc-sections option ignored" > /dev/null; then | |
5338 | : | |
5339 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ | |
5340 | | grep gcc_except_table > /dev/null; then | |
5341 | gcc_cv_ld_eh_gc_sections_bug=no | |
5342 | fi | |
5343 | fi | |
5344 | rm -f conftest.s conftest.o conftest | |
5345 | fi | |
5346 | if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then | |
5347 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1, | |
5348 | [Define if your linker has buggy garbage collection of | |
5349 | sections support when .text.startup.foo like sections are used.]) | |
5350 | fi | |
5351 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug) | |
5352 | ||
29d7cbd1 RO |
5353 | AC_MSG_CHECKING(linker for compressed debug sections) |
5354 | # gold/gld support compressed debug sections since binutils 2.19/2.21 | |
7320a4b5 | 5355 | # In binutils 2.26, gld gained support for the ELF gABI format. |
29d7cbd1 RO |
5356 | if test $in_tree_ld = yes ; then |
5357 | gcc_cv_ld_compress_debug=0 | |
5358 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5359 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then | |
5360 | gcc_cv_ld_compress_debug=2 | |
5361 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
7320a4b5 RO |
5362 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5363 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then | |
5364 | gcc_cv_ld_compress_debug=3 | |
5365 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
5366 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5367 | && test $in_tree_ld_is_elf = yes; then | |
5368 | gcc_cv_ld_compress_debug=1 | |
5369 | fi | |
5370 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
7320a4b5 RO |
5371 | if test "$ld_vers_major" -lt 2 \ |
5372 | || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then | |
5373 | gcc_cv_ld_compress_debug=0 | |
5374 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5375 | gcc_cv_ld_compress_debug=1 | |
5376 | else | |
5377 | gcc_cv_ld_compress_debug=3 | |
5378 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
29d7cbd1 RO |
5379 | fi |
5380 | if test $ld_is_gold = yes; then | |
5381 | gcc_cv_ld_compress_debug=2 | |
5382 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
5383 | fi | |
5384 | else | |
5385 | changequote(,)dnl | |
5386 | case "${target}" in | |
5387 | *-*-solaris2*) | |
5388 | # Introduced in Solaris 11.2. | |
5389 | if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then | |
5390 | gcc_cv_ld_compress_debug=3 | |
5391 | gcc_cv_ld_compress_debug_option="-z compress-sections" | |
5392 | else | |
5393 | gcc_cv_ld_compress_debug=0 | |
5394 | fi | |
5395 | ;; | |
5396 | *) | |
5397 | # Assume linkers other than GNU ld don't support compessed debug | |
5398 | # sections. | |
5399 | gcc_cv_ld_compress_debug=0 | |
5400 | ;; | |
5401 | esac | |
5402 | changequote([,])dnl | |
5403 | fi | |
5404 | AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug, | |
5405 | [Define to the level of your linker's compressed debug section support.]) | |
5406 | AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option", | |
5407 | [Define to the linker option to enable compressed debug sections.]) | |
5408 | AC_MSG_RESULT($gcc_cv_ld_compress_debug) | |
5409 | ||
eb89c82f IS |
5410 | if test x"$ld64_flag" = x"yes"; then |
5411 | ||
5412 | # Set defaults for possibly untestable items. | |
5413 | gcc_cv_ld64_export_dynamic=0 | |
5414 | ||
5415 | if test "$build" = "$host"; then | |
5416 | darwin_try_test=1 | |
5417 | else | |
5418 | darwin_try_test=0 | |
5419 | fi | |
5420 | ||
5421 | # On Darwin, because of FAT library support, it is often possible to execute | |
5422 | # exes from compatible archs even when the host differs from the build system. | |
5423 | case "$build","$host" in | |
5424 | x86_64-*-darwin*,i?86-*-darwin* | powerpc64*-*-darwin*,powerpc*-*-darwin*) | |
5425 | darwin_try_test=1;; | |
5426 | *) ;; | |
5427 | esac | |
5428 | ||
5429 | # If the configurer specified a minimum ld64 version to be supported, then use | |
5430 | # that to determine feature support. | |
5431 | if test x"${gcc_cv_ld64_version}" != x; then | |
c6d01ef8 IS |
5432 | AC_MSG_CHECKING(ld64 specified version) |
5433 | gcc_cv_ld64_major=`echo "$gcc_cv_ld64_version" | sed -e 's/\..*//'` | |
eb89c82f IS |
5434 | AC_MSG_RESULT($gcc_cv_ld64_major) |
5435 | if test "$gcc_cv_ld64_major" -ge 236; then | |
5436 | gcc_cv_ld64_export_dynamic=1 | |
5437 | fi | |
5438 | elif test -x "$gcc_cv_ld" -a "$darwin_try_test" -eq 1; then | |
5439 | # If the version was not specified, try to find it. | |
5440 | AC_MSG_CHECKING(linker version) | |
5441 | if test x"${gcc_cv_ld64_version}" = x; then | |
5442 | gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'` | |
5443 | fi | |
5444 | AC_MSG_RESULT($gcc_cv_ld64_version) | |
5445 | ||
5446 | AC_MSG_CHECKING(linker for -export_dynamic support) | |
5447 | gcc_cv_ld64_export_dynamic=1 | |
5448 | if $gcc_cv_ld -export_dynamic < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
5449 | gcc_cv_ld64_export_dynamic=0 | |
5450 | fi | |
5451 | AC_MSG_RESULT($gcc_cv_ld64_export_dynamic) | |
5452 | fi | |
5453 | ||
5454 | if test x"${gcc_cv_ld64_version}" != x; then | |
5455 | AC_DEFINE_UNQUOTED(LD64_VERSION, "${gcc_cv_ld64_version}", | |
5456 | [Define to ld64 version.]) | |
5457 | fi | |
5458 | ||
5459 | AC_DEFINE_UNQUOTED(LD64_HAS_EXPORT_DYNAMIC, $gcc_cv_ld64_export_dynamic, | |
5460 | [Define to 1 if ld64 supports '-export_dynamic'.]) | |
5461 | fi | |
5462 | ||
630327c3 NN |
5463 | # -------- |
5464 | # UNSORTED | |
5465 | # -------- | |
5466 | ||
82e923f6 RS |
5467 | AC_CACHE_CHECK(linker --as-needed support, |
5468 | gcc_cv_ld_as_needed, | |
5469 | [gcc_cv_ld_as_needed=no | |
e927b6ad RO |
5470 | gcc_cv_ld_as_needed_option='--as-needed' |
5471 | gcc_cv_ld_no_as_needed_option='--no-as-needed' | |
765f1bf9 AM |
5472 | if test $in_tree_ld = yes ; then |
5473 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5474 | && test $in_tree_ld_is_elf = yes; then | |
5475 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
5476 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then |
5477 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5478 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5479 | fi | |
765f1bf9 AM |
5480 | fi |
5481 | elif test x$gcc_cv_ld != x; then | |
8dc877eb RO |
5482 | # Check if linker supports --as-needed and --no-as-needed options |
5483 | if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then | |
5484 | gcc_cv_ld_as_needed=yes | |
fefedb94 JJ |
5485 | if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \ |
5486 | && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \ | |
5487 | && echo "$ld_ver" | grep GNU > /dev/null \ | |
5488 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then | |
5489 | # Use these options only when both ld.bfd and ld.gold support | |
5490 | # --push-state/--pop-state, which unfortunately wasn't added | |
5491 | # at the same time. | |
5492 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5493 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5494 | fi | |
8dc877eb RO |
5495 | fi |
5496 | case "$target:$gnu_ld" in | |
5497 | *-*-solaris2*:no) | |
5498 | # Solaris 2 ld always supports -z ignore/-z record. Prefer the native | |
5499 | # forms. | |
5500 | gcc_cv_ld_as_needed=yes | |
5501 | gcc_cv_ld_as_needed_option="-z ignore" | |
5502 | gcc_cv_ld_no_as_needed_option="-z record" | |
5503 | ;; | |
5504 | esac | |
765f1bf9 | 5505 | fi |
56cf7859 RO |
5506 | # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses |
5507 | # dl_iterate_phdr, i.e. since Solaris 11. | |
5508 | case "$target" in | |
5509 | *-*-solaris2.1[[1-9]]*) | |
5510 | case "$target" in | |
5511 | i?86-*-* | x86_64-*-*) | |
5512 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5513 | # Doesn't work with gld on Solaris/x86 due to PR ld/12320. | |
5514 | gcc_cv_ld_as_needed=no | |
5515 | fi | |
5516 | ;; | |
5517 | esac | |
5518 | ;; | |
5519 | *-*-solaris2*) | |
5520 | gcc_cv_ld_as_needed=no | |
5521 | ;; | |
5522 | esac | |
82e923f6 | 5523 | ]) |
765f1bf9 AM |
5524 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
5525 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
e927b6ad RO |
5526 | [Define if your linker supports --as-needed/--no-as-needed or equivalent options.]) |
5527 | AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option", | |
5528 | [Define to the linker option to ignore unused dependencies.]) | |
5529 | AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option", | |
5530 | [Define to the linker option to keep unused dependencies.]) | |
765f1bf9 | 5531 | fi |
765f1bf9 | 5532 | |
3c698bf0 RO |
5533 | AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) |
5534 | saved_LDFLAGS="$LDFLAGS" | |
5535 | for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do | |
5536 | LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" | |
22e05272 | 5537 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
3c698bf0 RO |
5538 | [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) |
5539 | done | |
5540 | LDFLAGS="$saved_LDFLAGS" | |
5541 | if test "x$gcc_cv_ld_clearcap" = xyes; then | |
5542 | AC_DEFINE([HAVE_LD_CLEARCAP], 1, | |
5543 | [Define if the linker supports clearing hardware capabilities via mapfile.]) | |
5544 | AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map]) | |
5545 | fi | |
5546 | AC_MSG_RESULT($gcc_cv_ld_clearcap) | |
5547 | ||
e9dda04f AM |
5548 | case "$target" in |
5549 | powerpc*-*-*) | |
5550 | case "$target" in | |
5551 | *le-*-linux*) | |
5552 | emul_name="-melf32lppc" | |
5553 | ;; | |
5554 | *) | |
5555 | emul_name="-melf32ppc" | |
5556 | ;; | |
5557 | esac | |
5558 | AC_CACHE_CHECK(linker .gnu.attributes long double support, | |
5559 | gcc_cv_ld_ppc_attr, | |
5560 | [gcc_cv_ld_ppc_attr=no | |
5561 | if test x"$ld_is_gold" = xyes; then | |
5562 | gcc_cv_ld_ppc_attr=yes | |
5563 | elif test $in_tree_ld = yes ; then | |
5564 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
5565 | -a "$gcc_cv_gld_minor_version" -ge 28 \ | |
5566 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
5567 | gcc_cv_ld_ppc_attr=yes | |
5568 | fi | |
5569 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5570 | # check that merging the long double .gnu_attribute doesn't warn | |
5571 | cat > conftest1.s <<EOF | |
5572 | .gnu_attribute 4,1 | |
5573 | EOF | |
5574 | cat > conftest2.s <<EOF | |
5575 | .gnu_attribute 4,9 | |
5576 | EOF | |
5577 | if $gcc_cv_as -a32 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5578 | && $gcc_cv_as -a32 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5579 | && $gcc_cv_ld $emul_name -r -o conftest.o conftest1.o conftest2.o > /dev/null 2> conftest.err \ | |
5580 | && test ! -s conftest.err; then | |
5581 | gcc_cv_ld_ppc_attr=yes | |
5582 | fi | |
5583 | rm -f conftest.err conftest.o conftest1.o conftest2.o conftest1.s conftest2.s | |
5584 | fi | |
5585 | ]) | |
5586 | if test x$gcc_cv_ld_ppc_attr = xyes; then | |
5587 | AC_DEFINE(HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE, 1, | |
5588 | [Define if your PowerPC linker has .gnu.attributes long double support.]) | |
5589 | fi | |
5590 | ;; | |
5591 | esac | |
5592 | ||
d82bf747 | 5593 | case "$target:$tm_file" in |
a26f86dc AT |
5594 | powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) |
5595 | case "$target" in | |
14523c25 AB |
5596 | *le-*-linux*) |
5597 | emul_name="-melf64lppc" | |
5598 | ;; | |
a26f86dc AT |
5599 | *-*-linux*) |
5600 | emul_name="-melf64ppc" | |
5601 | ;; | |
5602 | *-*-freebsd*) | |
5603 | emul_name="-melf64ppc_fbsd" | |
5604 | ;; | |
5605 | esac | |
85b776df AM |
5606 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
5607 | gcc_cv_ld_no_dot_syms, | |
5608 | [gcc_cv_ld_no_dot_syms=no | |
38e1b75f AM |
5609 | if test x"$ld_is_gold" = xyes; then |
5610 | gcc_cv_ld_no_dot_syms=yes | |
5611 | elif test $in_tree_ld = yes ; then | |
85b776df AM |
5612 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then |
5613 | gcc_cv_ld_no_dot_syms=yes | |
5614 | fi | |
5615 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5616 | cat > conftest1.s <<EOF | |
5617 | .text | |
5618 | bl .foo | |
5619 | EOF | |
5620 | cat > conftest2.s <<EOF | |
5621 | .section ".opd","aw" | |
5622 | .align 3 | |
5623 | .globl foo | |
5624 | .type foo,@function | |
5625 | foo: | |
5626 | .quad .LEfoo,.TOC.@tocbase,0 | |
5627 | .text | |
5628 | .LEfoo: | |
5629 | blr | |
5630 | .size foo,.-.LEfoo | |
5631 | EOF | |
5632 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5633 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
a26f86dc | 5634 | && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then |
85b776df AM |
5635 | gcc_cv_ld_no_dot_syms=yes |
5636 | fi | |
5637 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
5638 | fi | |
5639 | ]) | |
5640 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
5641 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
5642 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
5643 | fi | |
070b27da AM |
5644 | |
5645 | AC_CACHE_CHECK(linker large toc support, | |
5646 | gcc_cv_ld_large_toc, | |
5647 | [gcc_cv_ld_large_toc=no | |
38e1b75f AM |
5648 | if test x"$ld_is_gold" = xyes; then |
5649 | gcc_cv_ld_large_toc=yes | |
5650 | elif test $in_tree_ld = yes ; then | |
070b27da AM |
5651 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then |
5652 | gcc_cv_ld_large_toc=yes | |
5653 | fi | |
5654 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5655 | cat > conftest.s <<EOF | |
5656 | .section ".tbss","awT",@nobits | |
5657 | .align 3 | |
5658 | ie0: .space 8 | |
5659 | .global _start | |
5660 | .text | |
5661 | _start: | |
5662 | addis 9,13,ie0@got@tprel@ha | |
5663 | ld 9,ie0@got@tprel@l(9) | |
5664 | EOF | |
5665 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
a26f86dc | 5666 | && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then |
070b27da AM |
5667 | gcc_cv_ld_large_toc=yes |
5668 | fi | |
5669 | rm -f conftest conftest.o conftest.s | |
5670 | fi | |
5671 | ]) | |
5672 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5673 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
5674 | [Define if your PowerPC64 linker supports a large TOC.]) | |
5675 | fi | |
3954ead0 AM |
5676 | |
5677 | AC_CACHE_CHECK(linker toc pointer alignment, | |
5678 | gcc_cv_ld_toc_align, | |
5679 | [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then | |
5680 | cat > conftest.s <<EOF | |
5681 | .global _start | |
5682 | .text | |
5683 | _start: | |
5684 | addis 9,2,x@got@ha | |
5685 | .section .data.rel.ro,"aw",@progbits | |
5686 | .p2align 16 | |
5687 | .space 32768 | |
5688 | x: .quad .TOC. | |
5689 | EOF | |
5690 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
458bc9b1 | 5691 | && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then |
3954ead0 AM |
5692 | gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'` |
5693 | fi | |
5694 | rm -f conftest conftest.o conftest.s | |
5695 | fi | |
5696 | ]) | |
5697 | if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then | |
5698 | AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align, | |
5699 | [Define to .TOC. alignment forced by your linker.]) | |
5700 | fi | |
85b776df AM |
5701 | ;; |
5702 | esac | |
5703 | ||
9e81cc8b DE |
5704 | case "$target" in |
5705 | *-*-aix*) | |
5706 | AC_CACHE_CHECK(linker large toc support, | |
5707 | gcc_cv_ld_large_toc, | |
5708 | [gcc_cv_ld_large_toc=no | |
5709 | if test x$gcc_cv_as != x ; then | |
5710 | cat > conftest.s <<EOF | |
5711 | .toc | |
5712 | LC..1: | |
5713 | .tc a[[TC]],a[[RW]] | |
5714 | .extern a[[RW]] | |
5715 | .csect .text[[PR]] | |
5716 | .largetoctest: | |
5717 | addis 9,LC..1@u(2) | |
5718 | ld 3,LC..1@l(9) | |
5719 | EOF | |
5720 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then | |
5721 | gcc_cv_ld_large_toc=yes | |
5722 | fi | |
5723 | rm -f conftest conftest.o conftest.s | |
5724 | fi | |
5725 | ]) | |
5726 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5727 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
01ae4861 | 5728 | [Define if your PowerPC64 linker supports a large TOC.]) |
9e81cc8b DE |
5729 | fi |
5730 | ;; | |
5731 | esac | |
5732 | ||
cd533689 PP |
5733 | AC_CACHE_CHECK(linker --build-id support, |
5734 | gcc_cv_ld_buildid, | |
5735 | [gcc_cv_ld_buildid=no | |
5736 | if test $in_tree_ld = yes ; then | |
5737 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5738 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
5739 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5740 | && test $in_tree_ld_is_elf = yes; then | |
5741 | gcc_cv_ld_buildid=yes | |
5742 | fi | |
5743 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 5744 | if $gcc_cv_ld --help 2>&1 | grep build-id > /dev/null; then |
cd533689 PP |
5745 | gcc_cv_ld_buildid=yes |
5746 | fi | |
5747 | fi]) | |
5748 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5749 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
5750 | [Define if your linker supports --build-id.]) | |
5751 | fi | |
5752 | ||
5753 | AC_ARG_ENABLE(linker-build-id, | |
b88ecf55 AS |
5754 | [AS_HELP_STRING([--enable-linker-build-id], |
5755 | [compiler will always pass --build-id to linker])], | |
cd533689 PP |
5756 | [], |
5757 | enable_linker_build_id=no) | |
5758 | ||
5759 | if test x"$enable_linker_build_id" = xyes; then | |
5760 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5761 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
5762 | [Define if gcc should always pass --build-id to linker.]) | |
5763 | else | |
5764 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
5765 | fi | |
5766 | fi | |
5767 | ||
a6198222 RO |
5768 | # In binutils 2.21, GNU ld gained support for new emulations fully |
5769 | # supporting the Solaris 2 ABI. Detect their presence in the linker used. | |
5770 | AC_CACHE_CHECK(linker *_sol2 emulation support, | |
5771 | gcc_cv_ld_sol2_emulation, | |
5772 | [gcc_cv_ld_sol2_emulation=no | |
5773 | if test $in_tree_ld = yes ; then | |
5774 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5775 | "$gcc_cv_gld_minor_version" -ge 21 -o \ | |
5776 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5777 | && test $in_tree_ld_is_elf = yes; then | |
5778 | gcc_cv_ld_sol2_emulation=yes | |
5779 | fi | |
5780 | elif test x$gcc_cv_ld != x; then | |
5781 | if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \ | |
5782 | grep _sol2 > /dev/null; then | |
5783 | gcc_cv_ld_sol2_emulation=yes | |
5784 | fi | |
5785 | fi]) | |
5786 | if test x"$gcc_cv_ld_sol2_emulation" = xyes; then | |
5787 | AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1, | |
5788 | [Define if your linker supports the *_sol2 emulations.]) | |
5789 | fi | |
5790 | ||
380e5ca4 MM |
5791 | AC_CACHE_CHECK(linker --sysroot support, |
5792 | gcc_cv_ld_sysroot, | |
5793 | [gcc_cv_ld_sysroot=no | |
5794 | if test $in_tree_ld = yes ; then | |
5795 | if test "$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 | 5796 | gcc_cv_ld_sysroot=yes |
380e5ca4 MM |
5797 | fi |
5798 | elif test x$gcc_cv_ld != x; then | |
8dc877eb | 5799 | if $gcc_cv_ld --help 2>&1 | grep sysroot > /dev/null; then |
380e5ca4 MM |
5800 | gcc_cv_ld_sysroot=yes |
5801 | fi | |
5802 | fi]) | |
5803 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
5804 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
5805 | [Define if your linker supports --sysroot.]) | |
5806 | fi | |
5807 | ||
2d110442 RO |
5808 | case $target in |
5809 | *-*-solaris2*) | |
5810 | # Check for system-provided CRTs on Solaris 11.x and Solaris 12. | |
5811 | AC_CACHE_CHECK([system-provided CRTs on Solaris], | |
5812 | gcc_cv_solaris_crts, | |
5813 | [gcc_cv_solaris_crts=no | |
5814 | if test x$host != x$target; then | |
5815 | if test "x$with_sysroot" = xyes; then | |
5816 | target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root" | |
5817 | else | |
5818 | target_sysroot="${with_sysroot}" | |
5819 | fi | |
5820 | fi | |
5821 | target_libdir="$target_sysroot/usr/lib" | |
5822 | # At the time they were added, gcrt1.o became a symlink for backwards | |
5823 | # compatibility on x86, while crt1.o was added on sparc, so check for that. | |
5824 | case $target in | |
5825 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
5826 | if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5827 | ;; | |
5828 | sparc*-*-solaris2*) | |
5829 | if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5830 | ;; | |
5831 | esac]) | |
5832 | ;; | |
5833 | esac | |
5834 | if test x$gcc_cv_solaris_crts = xyes; then | |
5835 | AC_DEFINE(HAVE_SOLARIS_CRTS, 1, | |
5836 | [Define if the system-provided CRTs are present on Solaris.]) | |
5837 | fi | |
5838 | ||
78fd4c51 SL |
5839 | AC_ARG_ENABLE(libssp, |
5840 | [AS_HELP_STRING([--enable-libssp], [enable linking against libssp])], | |
5841 | [case "${enableval}" in | |
5842 | yes|no) | |
5843 | ;; | |
5844 | *) | |
5845 | AC_MSG_ERROR([unknown libssp setting $enableval]) | |
5846 | ;; | |
5847 | esac], []) | |
5848 | ||
77008252 | 5849 | # Test for stack protector support in target C library. |
a6ccdbab | 5850 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
78fd4c51 SL |
5851 | gcc_cv_libc_provides_ssp, |
5852 | [gcc_cv_libc_provides_ssp=no | |
5853 | if test "x$enable_libssp" = "xno"; then | |
5854 | gcc_cv_libc_provides_ssp=yes | |
5855 | elif test "x$enable_libssp" = "xyes"; then | |
5856 | gcc_cv_libc_provides_ssp=no | |
5857 | else | |
a6ccdbab | 5858 | case "$target" in |
755658a5 GR |
5859 | *-*-musl*) |
5860 | # All versions of musl provide stack protector | |
5861 | gcc_cv_libc_provides_ssp=yes;; | |
8466af06 | 5862 | *-*-linux* | *-*-kfreebsd*-gnu) |
75a2bcc0 | 5863 | # glibc 2.4 and later provides __stack_chk_fail and |
77008252 | 5864 | # either __stack_chk_guard, or TLS access to stack guard canary. |
75a2bcc0 JM |
5865 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [ |
5866 | [if test -f $target_header_dir/features.h \ | |
1a242e3c | 5867 | && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ |
6961669f | 5868 | $target_header_dir/features.h > /dev/null; then |
75a2bcc0 | 5869 | if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
6961669f RO |
5870 | $target_header_dir/features.h > /dev/null && \ |
5871 | test -f $target_header_dir/bits/uClibc_config.h && \ | |
1a242e3c | 5872 | $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ |
6961669f | 5873 | $target_header_dir/bits/uClibc_config.h > /dev/null; then |
fed6d628 | 5874 | gcc_cv_libc_provides_ssp=yes |
77008252 | 5875 | fi |
40295cc7 IZ |
5876 | # all versions of Bionic support stack protector |
5877 | elif test -f $target_header_dir/sys/cdefs.h \ | |
5878 | && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \ | |
5879 | $target_header_dir/sys/cdefs.h > /dev/null; then | |
5880 | gcc_cv_libc_provides_ssp=yes | |
75a2bcc0 | 5881 | fi]]) |
a6ccdbab | 5882 | ;; |
4cc115a2 TS |
5883 | *-*-gnu*) |
5884 | # Avoid complicated tests (see | |
5885 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
5886 | # simply assert that glibc does provide this, which is true for all | |
5887 | # realistically usable GNU/Hurd configurations. | |
755658a5 | 5888 | # All supported versions of musl provide it as well |
4cc115a2 | 5889 | gcc_cv_libc_provides_ssp=yes;; |
388dc9e6 | 5890 | *-*-darwin* | *-*-freebsd* | *-*-netbsd*) |
a6ccdbab EC |
5891 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
5892 | [echo "no __stack_chk_fail on this target"]) | |
5893 | ;; | |
78fd4c51 SL |
5894 | *) gcc_cv_libc_provides_ssp=no ;; |
5895 | esac | |
5896 | fi]) | |
a6ccdbab | 5897 | |
77008252 JJ |
5898 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
5899 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
5900 | [Define if your target C library provides stack protector support]) | |
5901 | fi | |
5902 | ||
e0f6cba0 MG |
5903 | # Check whether --enable-default-ssp was given. |
5904 | AC_ARG_ENABLE(default-ssp, | |
5905 | [AS_HELP_STRING([--enable-default-ssp], | |
5906 | [enable Stack Smashing Protection as default])],[ | |
5907 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
5908 | case "$target" in | |
5909 | ia64*-*-*) enable_default_ssp=no ;; | |
5910 | *) enable_default_ssp=$enableval ;; | |
5911 | esac | |
5912 | else | |
5913 | enable_default_ssp=no | |
5914 | fi], | |
5915 | enable_default_ssp=no) | |
9a557138 | 5916 | if test x$enable_default_ssp = xyes ; then |
e0f6cba0 MG |
5917 | AC_DEFINE(ENABLE_DEFAULT_SSP, 1, |
5918 | [Define if your target supports default stack protector and it is enabled.]) | |
5919 | fi | |
5920 | AC_SUBST([enable_default_ssp]) | |
5921 | ||
f4e749b4 TT |
5922 | # Test for <sys/sdt.h> on the target. |
5923 | GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) | |
5924 | AC_MSG_CHECKING(sys/sdt.h in the target C library) | |
5925 | have_sys_sdt_h=no | |
5926 | if test -f $target_header_dir/sys/sdt.h; then | |
d11aaed7 | 5927 | have_sys_sdt_h=yes |
f4e749b4 TT |
5928 | AC_DEFINE(HAVE_SYS_SDT_H, 1, |
5929 | [Define if your target C library provides sys/sdt.h]) | |
5930 | fi | |
5931 | AC_MSG_RESULT($have_sys_sdt_h) | |
5932 | ||
ed965309 JJ |
5933 | # Check if TFmode long double should be used by default or not. |
5934 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
5935 | # and later they can use TFmode. | |
5936 | case "$target" in | |
f7cc5390 | 5937 | powerpc*-*-linux* | \ |
ed965309 JJ |
5938 | sparc*-*-linux* | \ |
5939 | s390*-*-linux* | \ | |
5940 | alpha*-*-linux*) | |
5941 | AC_ARG_WITH(long-double-128, | |
b88ecf55 AS |
5942 | [AS_HELP_STRING([--with-long-double-128], |
5943 | [use 128-bit long double by default])], | |
ed965309 | 5944 | gcc_cv_target_ldbl128="$with_long_double_128", |
75a2bcc0 JM |
5945 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [ |
5946 | [gcc_cv_target_ldbl128=no | |
ed965309 | 5947 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
6961669f | 5948 | $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \ |
65280f6c | 5949 | && gcc_cv_target_ldbl128=yes |
75a2bcc0 | 5950 | ]])]) |
ed965309 JJ |
5951 | ;; |
5952 | esac | |
5953 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
5954 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
5955 | [Define if TFmode long double should be the default]) | |
5956 | fi | |
5957 | ||
8c7a27d5 MM |
5958 | # Check if TFmode long double target should use the IBM extended double or IEEE |
5959 | # 128-bit floating point formats if long doubles are 128-bits long. The long | |
5960 | # double type can only be switched on powerpc64 bit Linux systems where VSX is | |
5961 | # supported. Other PowerPC systems do not build the IEEE 128-bit emulator in | |
5962 | # libgcc. | |
5963 | AC_ARG_WITH([long-double-format], | |
5964 | [AS_HELP_STRING([--with-long-double-format={ieee,ibm}] | |
5965 | [Specify whether PowerPC long double uses IEEE or IBM format])],[ | |
5966 | case "$target:$with_long_double_format" in | |
5967 | powerpc64le-*-linux*:ieee | powerpc64le-*-linux*:ibm) | |
5968 | : | |
5969 | ;; | |
5970 | powerpc64-*-linux*:ieee | powerpc64-*-linux*:ibm) | |
5971 | # IEEE 128-bit emulation is only built on 64-bit VSX Linux systems | |
5972 | case "$with_cpu" in | |
5973 | power7 | power8 | power9 | power1*) | |
5974 | : | |
5975 | ;; | |
5976 | *) | |
5977 | AC_MSG_ERROR([Configuration option --with-long-double-format is only \ | |
5978 | supported if the default cpu is power7 or newer]) | |
5979 | with_long_double_format="" | |
5980 | ;; | |
5981 | esac | |
5982 | ;; | |
5983 | xpowerpc64*-*-linux*:*) | |
5984 | AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee]) | |
5985 | with_long_double_format="" | |
5986 | ;; | |
5987 | *) | |
5988 | AC_MSG_ERROR([Configure option --with-long-double-format is only supported \ | |
5989 | on 64-bit PowerPC VSX Linux systems]) | |
5990 | with_long_double_format="" | |
5991 | ;; | |
5992 | esac], | |
5993 | []) | |
5994 | ||
26a2e6ae PB |
5995 | # Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP |
5996 | # values in the TCB. Currently, only GLIBC 2.23 and later support this. | |
5997 | gcc_cv_libc_provides_hwcap_in_tcb=no | |
5998 | case "$target" in | |
5999 | powerpc*-*-linux*) | |
6000 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], ) | |
6001 | ;; | |
6002 | esac | |
6003 | if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then | |
6004 | AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1, | |
6005 | [Define if your target C Library provides the AT_HWCAP value in the TCB]) | |
6006 | fi | |
6007 | ||
6961669f RO |
6008 | AC_MSG_CHECKING(dl_iterate_phdr in target C library) |
6009 | gcc_cv_target_dl_iterate_phdr=unknown | |
6010 | case "$target" in | |
26923657 RO |
6011 | # Restrict to Solaris 11+. While most of the Solaris 11 linker changes |
6012 | # were backported to Solaris 10 Update 10, dl_iterate_phdr only lives in | |
6013 | # libdl there, both complicating its use and breaking compatibility | |
6014 | # between Solaris 10 updates. | |
6015 | *-*-solaris2.1[[1-9]]*) | |
6961669f RO |
6016 | # <link.h> needs both a dl_iterate_phdr declaration and support for |
6017 | # compilation with largefile support. | |
6018 | if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \ | |
6019 | && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then | |
6020 | gcc_cv_target_dl_iterate_phdr=yes | |
6021 | else | |
6022 | gcc_cv_target_dl_iterate_phdr=no | |
6023 | fi | |
6024 | ;; | |
dbed5a9b JM |
6025 | *-*-dragonfly* | *-*-freebsd*) |
6026 | if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then | |
6027 | gcc_cv_target_dl_iterate_phdr=yes | |
6028 | else | |
6029 | gcc_cv_target_dl_iterate_phdr=no | |
6030 | fi | |
6031 | ;; | |
755658a5 GR |
6032 | *-linux-musl*) |
6033 | gcc_cv_target_dl_iterate_phdr=yes | |
6034 | ;; | |
6961669f RO |
6035 | esac |
6036 | GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR]) | |
6037 | if test x$gcc_cv_target_dl_iterate_phdr = xyes; then | |
6038 | AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1, | |
6039 | [Define if your target C library provides the `dl_iterate_phdr' function.]) | |
6040 | fi | |
6041 | AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr) | |
6042 | ||
cd030c07 DN |
6043 | # We no longer support different GC mechanisms. Emit an error if |
6044 | # the user configures with --with-gc. | |
81bf3d9e | 6045 | AC_ARG_WITH(gc, |
b88ecf55 | 6046 | [AS_HELP_STRING([--with-gc={page,zone}], |
cd030c07 DN |
6047 | [this option is not supported anymore. It used to choose |
6048 | the garbage collection mechanism to use with the compiler])], | |
6049 | [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])], | |
6050 | []) | |
81bf3d9e | 6051 | |
00020c16 ILT |
6052 | # Libraries to use on the host. This will normally be set by the top |
6053 | # level Makefile. Here we simply capture the value for our Makefile. | |
6054 | if test -z "${HOST_LIBS+set}"; then | |
6055 | HOST_LIBS= | |
6056 | fi | |
6057 | AC_SUBST(HOST_LIBS) | |
6058 | ||
3c809ba4 | 6059 | # Use the system's zlib library. |
96a58590 | 6060 | AM_ZLIB |
3c809ba4 | 6061 | |
dc6746e7 PT |
6062 | dnl Very limited version of automake's enable-maintainer-mode |
6063 | ||
6064 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
6065 | dnl maintainer-mode is disabled by default | |
6066 | AC_ARG_ENABLE(maintainer-mode, | |
b88ecf55 AS |
6067 | [AS_HELP_STRING([--enable-maintainer-mode], |
6068 | [enable make rules and dependencies not useful | |
6069 | (and sometimes confusing) to the casual installer])], | |
dc6746e7 PT |
6070 | maintainer_mode=$enableval, |
6071 | maintainer_mode=no) | |
6072 | ||
6073 | AC_MSG_RESULT($maintainer_mode) | |
6074 | ||
6075 | if test "$maintainer_mode" = "yes"; then | |
6076 | MAINT='' | |
6077 | else | |
6078 | MAINT='#' | |
6079 | fi | |
6080 | AC_SUBST(MAINT)dnl | |
6081 | ||
427b248d JM |
6082 | dnl Whether to prevent multiple front-ends from linking at the same time |
6083 | ||
6084 | AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once]) | |
6085 | AC_ARG_ENABLE(link-mutex, | |
6086 | [AS_HELP_STRING([--enable-link-mutex], | |
6087 | [avoid linking multiple front-ends at once to avoid thrashing | |
6088 | on the build machine])], | |
6089 | do_link_mutex=$enableval, | |
6090 | do_link_mutex=no) | |
6091 | AC_MSG_RESULT($do_link_mutex) | |
6092 | ||
6093 | if test "$do_link_mutex" = "yes"; then | |
6094 | DO_LINK_MUTEX=true | |
6095 | else | |
6096 | DO_LINK_MUTEX=false | |
6097 | fi | |
6098 | AC_SUBST(DO_LINK_MUTEX) | |
6099 | ||
630327c3 NN |
6100 | # -------------- |
6101 | # Language hooks | |
6102 | # -------------- | |
6103 | ||
571a8de5 DE |
6104 | # Make empty files to contain the specs and options for each language. |
6105 | # Then add #include lines to for a compiler that has specs and/or options. | |
6106 | ||
cc11cc9b | 6107 | subdirs= |
d7b42618 | 6108 | lang_opt_files= |
571a8de5 | 6109 | lang_specs_files= |
3103b7db | 6110 | lang_tree_files= |
571a8de5 DE |
6111 | # These (without "all_") are set in each config-lang.in. |
6112 | # `language' must be a single word so is spelled singularly. | |
6113 | all_languages= | |
571a8de5 | 6114 | all_compilers= |
fda9c731 | 6115 | all_outputs='Makefile' |
571a8de5 | 6116 | # List of language makefile fragments. |
2ed26f6b | 6117 | all_lang_makefrags= |
11a67599 | 6118 | # Additional files for gengtype |
ef69da62 | 6119 | all_gtfiles="$target_gtfiles" |
571a8de5 | 6120 | |
cc11cc9b PB |
6121 | # These are the languages that are set in --enable-languages, |
6122 | # and are available in the GCC tree. | |
6123 | all_selected_languages= | |
6124 | ||
571a8de5 DE |
6125 | # Add the language fragments. |
6126 | # Languages are added via two mechanisms. Some information must be | |
6127 | # recorded in makefile variables, these are defined in config-lang.in. | |
6128 | # We accumulate them and plug them into the main Makefile. | |
6129 | # The other mechanism is a set of hooks for each of the main targets | |
6130 | # like `clean', `install', etc. | |
6131 | ||
571a8de5 DE |
6132 | language_hooks="Make-hooks" |
6133 | ||
cc11cc9b | 6134 | for lang in ${srcdir}/*/config-lang.in |
571a8de5 | 6135 | do |
cc11cc9b | 6136 | changequote(,)dnl |
1546bb64 PB |
6137 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
6138 | ||
cc11cc9b PB |
6139 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
6140 | if test "x$lang_alias" = x | |
6141 | then | |
6142 | echo "$lang doesn't set \$language." 1>&2 | |
6143 | exit 1 | |
6144 | fi | |
6145 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
6146 | subdirs="$subdirs $subdir" | |
349c3166 OH |
6147 | |
6148 | # $gcc_subdir is where the gcc integration files are to be found | |
6149 | # for a language, both for internal compiler purposes (compiler | |
6150 | # sources implementing front-end to GCC tree converters), and for | |
6151 | # build infrastructure purposes (Make-lang.in, etc.) | |
6152 | # | |
6153 | # This will be <subdir> (relative to $srcdir) if a line like | |
6154 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
6155 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
6156 | # otherwise. | |
6157 | # | |
6158 | # Except for the language alias (fetched above), the regular | |
6159 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
6160 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
6161 | # only this and the language alias. | |
6162 | ||
6163 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
6164 | if [ "$gcc_subdir" = "" ]; then | |
6165 | gcc_subdir="$subdir" | |
6166 | fi | |
6167 | ||
cc11cc9b PB |
6168 | case ",$enable_languages," in |
6169 | *,$lang_alias,*) | |
6170 | all_selected_languages="$all_selected_languages $lang_alias" | |
349c3166 OH |
6171 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
6172 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
cc11cc9b PB |
6173 | fi |
6174 | ;; | |
6175 | esac | |
6176 | changequote([,])dnl | |
6177 | ||
cc11cc9b PB |
6178 | language= |
6179 | boot_language= | |
6180 | compilers= | |
cc11cc9b PB |
6181 | outputs= |
6182 | gtfiles= | |
1546bb64 | 6183 | subdir_requires= |
349c3166 | 6184 | . ${srcdir}/$gcc_subdir/config-lang.in |
cc11cc9b PB |
6185 | if test "x$language" = x |
6186 | then | |
349c3166 | 6187 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
cc11cc9b PB |
6188 | exit 1 |
6189 | fi | |
1546bb64 PB |
6190 | |
6191 | ok=: | |
6192 | case ",$enable_languages," in | |
6193 | *,$lang_alias,*) ;; | |
6194 | *) | |
6195 | for i in $subdir_requires; do | |
b6348cb3 | 6196 | test -f "${srcdir}/$i/config-lang.in" && continue |
1546bb64 PB |
6197 | ok=false |
6198 | break | |
6199 | done | |
6200 | ;; | |
6201 | esac | |
6202 | $ok || continue | |
6203 | ||
349c3166 OH |
6204 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
6205 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
6206 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
fd438373 | 6207 | all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt" |
1546bb64 | 6208 | fi |
349c3166 OH |
6209 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
6210 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
1546bb64 | 6211 | fi |
cc11cc9b | 6212 | all_languages="$all_languages $language" |
cc11cc9b | 6213 | all_compilers="$all_compilers $compilers" |
cc11cc9b | 6214 | all_outputs="$all_outputs $outputs" |
11a67599 | 6215 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
d7f09764 DN |
6216 | case ",$enable_languages," in |
6217 | *,lto,*) | |
6218 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
6219 | enable_lto=yes | |
6220 | AC_SUBST(enable_lto) | |
6221 | ;; | |
6222 | *) ;; | |
6223 | esac | |
571a8de5 DE |
6224 | done |
6225 | ||
cbc59f01 | 6226 | check_languages= |
cc11cc9b | 6227 | for language in $all_selected_languages |
cbc59f01 | 6228 | do |
cc11cc9b | 6229 | check_languages="$check_languages check-$language" |
cbc59f01 DD |
6230 | done |
6231 | ||
033eb567 DM |
6232 | selftest_languages= |
6233 | for language in $all_selected_languages | |
6234 | do | |
6235 | selftest_languages="$selftest_languages selftest-$language" | |
6236 | done | |
6237 | ||
62b81e45 | 6238 | # We link each language in with a set of hooks, reached indirectly via |
cc11cc9b | 6239 | # lang.${target}. Only do so for selected languages. |
571a8de5 DE |
6240 | |
6241 | rm -f Make-hooks | |
6242 | touch Make-hooks | |
bd97af06 | 6243 | target_list="all.cross start.encap rest.encap tags \ |
55bcd32b AJ |
6244 | install-common install-man install-info install-pdf install-html dvi \ |
6245 | pdf html uninstall info man srcextra srcman srcinfo \ | |
2a4c0366 | 6246 | mostlyclean clean distclean maintainer-clean install-plugin" |
cc11cc9b | 6247 | |
571a8de5 DE |
6248 | for t in $target_list |
6249 | do | |
6250 | x= | |
cc11cc9b | 6251 | for lang in $all_selected_languages |
571a8de5 | 6252 | do |
cc11cc9b | 6253 | x="$x $lang.$t" |
571a8de5 DE |
6254 | done |
6255 | echo "lang.$t: $x" >> Make-hooks | |
6256 | done | |
6257 | ||
fd438373 MM |
6258 | # -------- |
6259 | # Option include files | |
6260 | # -------- | |
6261 | ||
6262 | ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk | |
6263 | option_includes="option-includes.mk" | |
6264 | AC_SUBST_FILE(option_includes) | |
6265 | ||
630327c3 NN |
6266 | # -------- |
6267 | # UNSORTED | |
6268 | # -------- | |
6269 | ||
cc06d68c | 6270 | # Create .gdbinit. |
296e46bd | 6271 | |
cc06d68c GP |
6272 | echo "dir ." > .gdbinit |
6273 | echo "dir ${srcdir}" >> .gdbinit | |
6274 | if test x$gdb_needs_out_file_path = xyes | |
6275 | then | |
6276 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
6277 | fi | |
6278 | if test "x$subdirs" != x; then | |
6279 | for s in $subdirs | |
6280 | do | |
6281 | echo "dir ${srcdir}/$s" >> .gdbinit | |
6282 | done | |
296e46bd | 6283 | fi |
cc06d68c | 6284 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
8dce4dbc | 6285 | echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit |
296e46bd | 6286 | |
3bd7b086 L |
6287 | # Put a breakpoint on __asan_report_error to help with debugging buffer |
6288 | # overflow. | |
6289 | case "$CFLAGS" in | |
6290 | *-fsanitize=address*) | |
6291 | echo "source ${srcdir}/gdbasan.in" >> .gdbinit | |
6292 | ;; | |
6293 | esac | |
6294 | ||
15c723f3 | 6295 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
d062c304 | 6296 | AC_SUBST(gcc_tooldir) |
4c112cda | 6297 | AC_SUBST(dollar) |
d062c304 | 6298 | |
2bbea3a6 RH |
6299 | # Find a directory in which to install a shared libgcc. |
6300 | ||
6301 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
b88ecf55 AS |
6302 | [AS_HELP_STRING([--enable-version-specific-runtime-libs], |
6303 | [specify that runtime libraries should be | |
6304 | installed in a compiler-specific directory])]) | |
2bbea3a6 | 6305 | |
46f18e7b RK |
6306 | # Substitute configuration variables |
6307 | AC_SUBST(subdirs) | |
8ac9d31f | 6308 | AC_SUBST(srcdir) |
46f18e7b | 6309 | AC_SUBST(all_compilers) |
e2500fed | 6310 | AC_SUBST(all_gtfiles) |
2ed26f6b | 6311 | AC_SUBST(all_lang_makefrags) |
9f3d1bc2 | 6312 | AC_SUBST(all_languages) |
cc11cc9b | 6313 | AC_SUBST(all_selected_languages) |
9f3d1bc2 BK |
6314 | AC_SUBST(build_exeext) |
6315 | AC_SUBST(build_install_headers_dir) | |
6316 | AC_SUBST(build_xm_file_list) | |
e22340b0 | 6317 | AC_SUBST(build_xm_include_list) |
11642c3a | 6318 | AC_SUBST(build_xm_defines) |
a0e527e3 | 6319 | AC_SUBST(build_file_translate) |
cbc59f01 | 6320 | AC_SUBST(check_languages) |
033eb567 | 6321 | AC_SUBST(selftest_languages) |
9f3d1bc2 | 6322 | AC_SUBST(cpp_install_dir) |
2ed26f6b ZW |
6323 | AC_SUBST(xmake_file) |
6324 | AC_SUBST(tmake_file) | |
aca600aa AS |
6325 | AC_SUBST(TM_ENDIAN_CONFIG) |
6326 | AC_SUBST(TM_MULTILIB_CONFIG) | |
6327 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
30500d84 | 6328 | AC_SUBST(extra_gcc_objs) |
9b91e436 KT |
6329 | AC_SUBST(user_headers_inc_next_pre) |
6330 | AC_SUBST(user_headers_inc_next_post) | |
9f3d1bc2 | 6331 | AC_SUBST(extra_headers_list) |
46f18e7b | 6332 | AC_SUBST(extra_objs) |
9f3d1bc2 | 6333 | AC_SUBST(extra_programs) |
9f3d1bc2 | 6334 | AC_SUBST(float_h_file) |
cc1e60ea | 6335 | AC_SUBST(gcc_config_arguments) |
9f3d1bc2 | 6336 | AC_SUBST(gcc_gxx_include_dir) |
17719d09 | 6337 | AC_SUBST(gcc_gxx_include_dir_add_sysroot) |
9f3d1bc2 | 6338 | AC_SUBST(host_exeext) |
46f18e7b | 6339 | AC_SUBST(host_xm_file_list) |
e22340b0 | 6340 | AC_SUBST(host_xm_include_list) |
11642c3a | 6341 | AC_SUBST(host_xm_defines) |
476d9098 | 6342 | AC_SUBST(out_host_hook_obj) |
9f3d1bc2 | 6343 | AC_SUBST(install) |
d7b42618 | 6344 | AC_SUBST(lang_opt_files) |
9f3d1bc2 | 6345 | AC_SUBST(lang_specs_files) |
3103b7db | 6346 | AC_SUBST(lang_tree_files) |
46f18e7b | 6347 | AC_SUBST(local_prefix) |
9f3d1bc2 BK |
6348 | AC_SUBST(md_file) |
6349 | AC_SUBST(objc_boehm_gc) | |
6350 | AC_SUBST(out_file) | |
6351 | AC_SUBST(out_object_file) | |
c49a6962 JM |
6352 | AC_SUBST(common_out_file) |
6353 | AC_SUBST(common_out_object_file) | |
9f3d1bc2 | 6354 | AC_SUBST(tm_file_list) |
e22340b0 | 6355 | AC_SUBST(tm_include_list) |
d5355cb2 | 6356 | AC_SUBST(tm_defines) |
11642c3a | 6357 | AC_SUBST(tm_p_file_list) |
e22340b0 | 6358 | AC_SUBST(tm_p_include_list) |
b4c522fa IB |
6359 | AC_SUBST(tm_d_file_list) |
6360 | AC_SUBST(tm_d_include_list) | |
e22340b0 ZW |
6361 | AC_SUBST(xm_file_list) |
6362 | AC_SUBST(xm_include_list) | |
3d9d2476 | 6363 | AC_SUBST(xm_defines) |
207bf79d | 6364 | AC_SUBST(use_gcc_stdint) |
aac69a49 NC |
6365 | AC_SUBST(c_target_objs) |
6366 | AC_SUBST(cxx_target_objs) | |
c776a6d0 | 6367 | AC_SUBST(fortran_target_objs) |
b4c522fa | 6368 | AC_SUBST(d_target_objs) |
11642c3a | 6369 | AC_SUBST(target_cpu_default) |
46f18e7b | 6370 | |
46f18e7b RK |
6371 | AC_SUBST_FILE(language_hooks) |
6372 | ||
7903cebc NN |
6373 | # Echo link setup. |
6374 | if test x${build} = x${host} ; then | |
6375 | if test x${host} = x${target} ; then | |
6376 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
6377 | else | |
6378 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
6379 | echo " from ${host} to ${target}." 1>&2 | |
6380 | fi | |
46f18e7b | 6381 | else |
7903cebc NN |
6382 | if test x${host} = x${target} ; then |
6383 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
6384 | echo " for ${target}." 1>&2 | |
6385 | else | |
6386 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
6387 | echo " from ${host} to ${target}." 1>&2 | |
6388 | fi | |
46f18e7b RK |
6389 | fi |
6390 | ||
6de9cd9a DN |
6391 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
6392 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
6393 | ||
e357a5e0 SP |
6394 | AC_ARG_VAR(ISLLIBS,[How to link isl]) |
6395 | AC_ARG_VAR(ISLINC,[How to find isl include files]) | |
eae1a5d4 RG |
6396 | if test "x${ISLLIBS}" != "x" ; then |
6397 | AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.]) | |
6398 | fi | |
f8bf9252 | 6399 | |
ddc8de03 | 6400 | GCC_ENABLE_PLUGINS |
68a607d8 DN |
6401 | AC_SUBST(pluginlibs) |
6402 | AC_SUBST(enable_plugin) | |
6403 | if test x"$enable_plugin" = x"yes"; then | |
6404 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
6405 | fi | |
6406 | ||
87e6d9dc | 6407 | |
459260ec DM |
6408 | # Enable --enable-host-shared |
6409 | AC_ARG_ENABLE(host-shared, | |
6410 | [AS_HELP_STRING([--enable-host-shared], | |
6411 | [build host code as shared libraries])], | |
6412 | [PICFLAG=-fPIC], [PICFLAG=]) | |
6413 | AC_SUBST(enable_host_shared) | |
6414 | AC_SUBST(PICFLAG) | |
6415 | ||
6416 | ||
87e6d9dc TB |
6417 | AC_ARG_ENABLE(libquadmath-support, |
6418 | [AS_HELP_STRING([--disable-libquadmath-support], | |
6419 | [disable libquadmath support for Fortran])], | |
6420 | ENABLE_LIBQUADMATH_SUPPORT=$enableval, | |
6421 | ENABLE_LIBQUADMATH_SUPPORT=yes) | |
6422 | if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then | |
6423 | AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1, | |
6424 | [Define to 1 to enable libquadmath support]) | |
6425 | fi | |
6426 | ||
6427 | ||
79bec923 ST |
6428 | # Specify what hash style to use by default. |
6429 | AC_ARG_WITH([linker-hash-style], | |
6430 | [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}], | |
6431 | [specify the linker hash style])], | |
6432 | [case x"$withval" in | |
6433 | xsysv) | |
6434 | LINKER_HASH_STYLE=sysv | |
6435 | ;; | |
6436 | xgnu) | |
6437 | LINKER_HASH_STYLE=gnu | |
6438 | ;; | |
6439 | xboth) | |
6440 | LINKER_HASH_STYLE=both | |
6441 | ;; | |
6442 | *) | |
6443 | AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style]) | |
6444 | ;; | |
6445 | esac], | |
6446 | [LINKER_HASH_STYLE='']) | |
6447 | if test x"${LINKER_HASH_STYLE}" != x; then | |
6448 | AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE", | |
6449 | [The linker hash style]) | |
6450 | fi | |
6451 | ||
899c78ae JJ |
6452 | # Specify what should be the default of -fdiagnostics-color option. |
6453 | AC_ARG_WITH([diagnostics-color], | |
6454 | [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}], | |
6455 | [specify the default of -fdiagnostics-color option | |
6456 | auto-if-env stands for -fdiagnostics-color=auto if | |
6457 | GCC_COLOR environment variable is present and | |
6458 | -fdiagnostics-color=never otherwise])], | |
6459 | [case x"$withval" in | |
6460 | xnever) | |
6461 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO | |
6462 | ;; | |
6463 | xauto) | |
6464 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO | |
6465 | ;; | |
6466 | xauto-if-env) | |
6467 | DIAGNOSTICS_COLOR_DEFAULT=-1 | |
6468 | ;; | |
6469 | xalways) | |
6470 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES | |
6471 | ;; | |
6472 | *) | |
6473 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color]) | |
6474 | ;; | |
6475 | esac], | |
6476 | [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO]) | |
6477 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT, | |
6478 | [The default for -fdiagnostics-color option]) | |
6479 | ||
35485da9 DM |
6480 | # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit |
6481 | # of jit/jit-playback.c. | |
001ddaa8 DM |
6482 | gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"` |
6483 | echo "gcc_driver_version: ${gcc_driver_version}" | |
35485da9 | 6484 | cat > gcc-driver-name.h <<EOF |
001ddaa8 | 6485 | #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}" |
35485da9 DM |
6486 | EOF |
6487 | ||
428b3812 L |
6488 | # Check whether --enable-default-pie was given. |
6489 | AC_ARG_ENABLE(default-pie, | |
6490 | [AS_HELP_STRING([--enable-default-pie], | |
6491 | [enable Position Independent Executable as default])], | |
6492 | enable_default_pie=$enableval, | |
6493 | enable_default_pie=no) | |
9a557138 | 6494 | if test x$enable_default_pie = xyes ; then |
428b3812 L |
6495 | AC_DEFINE(ENABLE_DEFAULT_PIE, 1, |
6496 | [Define if your target supports default PIE and it is enabled.]) | |
6497 | fi | |
6498 | AC_SUBST([enable_default_pie]) | |
6499 | ||
6500 | # Check if -fno-PIE works. | |
6501 | AC_CACHE_CHECK([for -fno-PIE option], | |
6502 | [gcc_cv_c_no_fpie], | |
fee22a80 L |
6503 | [saved_CXXFLAGS="$CXXFLAGS" |
6504 | CXXFLAGS="$CXXFLAGS -fno-PIE" | |
22e05272 | 6505 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
6506 | [gcc_cv_c_no_fpie=yes], |
6507 | [gcc_cv_c_no_fpie=no]) | |
fee22a80 | 6508 | CXXFLAGS="$saved_CXXFLAGS"]) |
428b3812 L |
6509 | if test "$gcc_cv_c_no_fpie" = "yes"; then |
6510 | NO_PIE_CFLAGS="-fno-PIE" | |
6511 | fi | |
6512 | AC_SUBST([NO_PIE_CFLAGS]) | |
6513 | ||
6514 | # Check if -no-pie works. | |
6515 | AC_CACHE_CHECK([for -no-pie option], | |
6516 | [gcc_cv_no_pie], | |
6517 | [saved_LDFLAGS="$LDFLAGS" | |
6518 | LDFLAGS="$LDFLAGS -no-pie" | |
22e05272 | 6519 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
428b3812 L |
6520 | [gcc_cv_no_pie=yes], |
6521 | [gcc_cv_no_pie=no]) | |
6522 | LDFLAGS="$saved_LDFLAGS"]) | |
6523 | if test "$gcc_cv_no_pie" = "yes"; then | |
6524 | NO_PIE_FLAG="-no-pie" | |
6525 | fi | |
6526 | AC_SUBST([NO_PIE_FLAG]) | |
6527 | ||
6de59c8a IE |
6528 | # Check linker supports '-z bndplt' |
6529 | ld_bndplt_support=no | |
6530 | AC_MSG_CHECKING(linker -z bndplt option) | |
6531 | if test x"$ld_is_gold" = xno; then | |
6532 | if test $in_tree_ld = yes ; then | |
6533 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6534 | ld_bndplt_support=yes | |
6535 | fi | |
6536 | elif test x$gcc_cv_ld != x; then | |
6537 | # Check if linker supports -a bndplt option | |
8dc877eb | 6538 | if $gcc_cv_ld --help 2>&1 | grep -- '-z bndplt' > /dev/null; then |
6de59c8a IE |
6539 | ld_bndplt_support=yes |
6540 | fi | |
6541 | fi | |
6542 | fi | |
6543 | if test x"$ld_bndplt_support" = xyes; then | |
6544 | AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1, | |
6545 | [Define if your linker supports -z bndplt]) | |
6546 | fi | |
6547 | AC_MSG_RESULT($ld_bndplt_support) | |
6548 | ||
7e495577 AI |
6549 | # Check linker supports '--push-state'/'--pop-state' |
6550 | ld_pushpopstate_support=no | |
6551 | AC_MSG_CHECKING(linker --push-state/--pop-state options) | |
6552 | if test x"$ld_is_gold" = xno; then | |
6553 | if test $in_tree_ld = yes ; then | |
6554 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6555 | ld_pushpopstate_support=yes | |
6556 | fi | |
6557 | elif test x$gcc_cv_ld != x; then | |
6558 | # Check if linker supports --push-state/--pop-state options | |
8dc877eb | 6559 | if $gcc_cv_ld --help 2>&1 | grep -- '--push-state' > /dev/null; then |
7e495577 AI |
6560 | ld_pushpopstate_support=yes |
6561 | fi | |
6562 | fi | |
6563 | fi | |
6564 | if test x"$ld_pushpopstate_support" = xyes; then | |
6565 | AC_DEFINE(HAVE_LD_PUSHPOPSTATE_SUPPORT, 1, | |
6566 | [Define if your linker supports --push-state/--pop-state]) | |
6567 | fi | |
6568 | AC_MSG_RESULT($ld_pushpopstate_support) | |
6569 | ||
46f18e7b RK |
6570 | # Configure the subdirectories |
6571 | # AC_CONFIG_SUBDIRS($subdirs) | |
6572 | ||
6573 | # Create the Makefile | |
5891b37d | 6574 | # and configure language subdirectories |
914c5af7 NN |
6575 | AC_CONFIG_FILES($all_outputs) |
6576 | ||
6577 | AC_CONFIG_COMMANDS([default], | |
cdcc6a01 | 6578 | [ |
f1faaabd NN |
6579 | case ${CONFIG_HEADERS} in |
6580 | *auto-host.h:config.in*) | |
6581 | echo > cstamp-h ;; | |
cdcc6a01 | 6582 | esac |
2ed26f6b | 6583 | # Make sure all the subdirs exist. |
c49a6962 | 6584 | for d in $subdirs doc build common c-family |
2ed26f6b | 6585 | do |
2ed26f6b | 6586 | test -d $d || mkdir $d |
2ed26f6b | 6587 | done |
0d24f4d1 | 6588 | ], |
35f06ae4 | 6589 | [subdirs='$subdirs']) |
914c5af7 | 6590 | AC_OUTPUT |
fd438373 | 6591 |