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2cd18f76 | 1 | # configure.ac for GCC |
01dc27ef | 2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
fbd26352 | 4 | # Copyright (C) 1997-2019 Free Software Foundation, Inc. |
01dc27ef | 5 | |
f12b58b3 | 6 | #This file is part of GCC. |
01dc27ef | 7 | |
f12b58b3 | 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 | |
8c4c00c1 | 10 | #Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 11 | #version. |
01dc27ef | 12 | |
f12b58b3 | 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. | |
01dc27ef | 17 | |
18 | #You should have received a copy of the GNU General Public License | |
8c4c00c1 | 19 | #along with GCC; see the file COPYING3. If not see |
20 | #<http://www.gnu.org/licenses/>. | |
01dc27ef | 21 | |
7349ace9 | 22 | # -------------------------------- |
23 | # Initialization and sanity checks | |
24 | # -------------------------------- | |
25 | ||
1211e6bc | 26 | AC_INIT |
27 | AC_CONFIG_SRCDIR(tree.c) | |
764fc592 | 28 | AC_CONFIG_HEADER(auto-host.h:config.in) |
805483cf | 29 | |
f32e3360 | 30 | gcc_version=`cat $srcdir/BASE-VER` |
31 | ||
7349ace9 | 32 | # Determine the host, build, and target systems |
1211e6bc | 33 | AC_CANONICAL_BUILD |
34 | AC_CANONICAL_HOST | |
35 | AC_CANONICAL_TARGET | |
7349ace9 | 36 | |
5788a324 | 37 | # Determine the noncanonical host name, for Ada. |
38 | ACX_NONCANONICAL_HOST | |
39 | ||
d58156a1 | 40 | # Determine the noncanonical target name, for directory use. |
dabbc00f | 41 | ACX_NONCANONICAL_TARGET |
d58156a1 | 42 | |
a3d93be3 | 43 | # Used for constructing correct paths for offload compilers. |
44 | real_target_noncanonical=${target_noncanonical} | |
45 | accel_dir_suffix= | |
46 | ||
4f442f07 | 47 | # Determine the target- and build-specific subdirectories |
48 | GCC_TOPLEV_SUBDIRS | |
49 | ||
7349ace9 | 50 | # Set program_transform_name |
51 | AC_ARG_PROGRAM | |
01dc27ef | 52 | |
279894f2 | 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 | |
edf2430c | 76 | *** building gcc. Please change the environment variable |
279894f2 | 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 "$gcc_exec_prefix_setting" != "ok"; then | |
100 | AC_MSG_ERROR([ | |
101 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
edf2430c | 102 | *** building gcc. Please change the environment variable |
279894f2 | 103 | *** and run configure again.]) |
104 | fi | |
105 | ||
7349ace9 | 106 | # ----------- |
107 | # Directories | |
108 | # ----------- | |
109 | ||
110 | # Specify the local prefix | |
111 | local_prefix= | |
112 | AC_ARG_WITH(local-prefix, | |
bc6c87c1 | 113 | [AS_HELP_STRING([--with-local-prefix=DIR], |
114 | [specifies directory to put local include])], | |
7349ace9 | 115 | [case "${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 | ||
aa327038 | 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 | ||
7349ace9 | 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, | |
bc6c87c1 | 199 | [AS_HELP_STRING([--with-gxx-include-dir=DIR], |
200 | [specifies directory to put g++ header files])], | |
7349ace9 | 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 | ||
1244c182 | 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 | ||
0bf9691e | 212 | # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. |
7349ace9 | 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='${libsubdir}/include/c++' | |
216 | else | |
0bf9691e | 217 | libstdcxx_incdir='include/c++/$(version)' |
218 | if test x$host != x$target; then | |
219 | libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
220 | fi | |
fc5f9e0c | 221 | gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir" |
7349ace9 | 222 | fi |
1244c182 | 223 | elif test "${with_sysroot+set}" = set; then |
36ddd5fe | 224 | gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'` |
225 | if test "${gcc_gxx_without_sysroot}"; then | |
1244c182 | 226 | gcc_gxx_include_dir="${gcc_gxx_without_sysroot}" |
36ddd5fe | 227 | gcc_gxx_include_dir_add_sysroot=1 |
228 | fi | |
229 | fi | |
230 | ||
7349ace9 | 231 | AC_ARG_WITH(cpp_install_dir, |
bc6c87c1 | 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])], | |
7349ace9 | 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=$withval | |
239 | fi]) | |
240 | ||
37c96b91 | 241 | # We would like to our source tree to be readonly. However when releases or |
242 | # pre-releases are generated, the flex/bison generated files as well as the | |
243 | # various formats of manuals need to be included along with the rest of the | |
244 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
245 | # just that. | |
246 | ||
a6b4c5a9 | 247 | AC_MSG_CHECKING([whether to place generated files in the source directory]) |
248 | dnl generated-files-in-srcdir is disabled by default | |
249 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
bc6c87c1 | 250 | [AS_HELP_STRING([--enable-generated-files-in-srcdir], |
251 | [put copies of generated files in source dir | |
252 | intended for creating source tarballs for users | |
253 | without texinfo bison or flex])], | |
a6b4c5a9 | 254 | generated_files_in_srcdir=$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='' | |
a6b4c5a9 | 261 | else |
262 | GENINSRC='#' | |
a6b4c5a9 | 263 | fi |
264 | AC_SUBST(GENINSRC) | |
37c96b91 | 265 | |
7349ace9 | 266 | # ------------------- |
267 | # Find default linker | |
268 | # ------------------- | |
01dc27ef | 269 | |
270 | # With GNU ld | |
271 | AC_ARG_WITH(gnu-ld, | |
bc6c87c1 | 272 | [AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])], |
c4f70bb2 | 273 | gnu_ld_flag="$with_gnu_ld", |
274 | gnu_ld_flag=no) | |
01dc27ef | 275 | |
6afab66e | 276 | case $target in |
277 | *darwin*) ld64_flag=yes;; # Darwin can only use a ld64-compatible linker. | |
278 | *) ld64_flag=no;; | |
279 | esac | |
280 | ||
f07251bc | 281 | # With pre-defined ld |
282 | AC_ARG_WITH(ld, | |
bc6c87c1 | 283 | [AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])], |
f8b7dbdb | 284 | DEFAULT_LINKER="$with_ld") |
285 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
286 | if test ! -x "$DEFAULT_LINKER"; then | |
b452b31a | 287 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
16e09e89 | 288 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
f07251bc | 289 | gnu_ld_flag=yes |
6afab66e | 290 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep ld64- > /dev/null; then |
291 | ld64_flag=yes | |
f07251bc | 292 | fi |
42f1312d | 293 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
294 | [Define to enable the use of a default linker.]) | |
f07251bc | 295 | fi |
296 | ||
7349ace9 | 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 | ||
9c948bc2 | 308 | # With demangler in GNU ld |
309 | AC_ARG_WITH(demangler-in-ld, | |
bc6c87c1 | 310 | [AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])], |
9c948bc2 | 311 | demangler_in_ld="$with_demangler_in_ld", |
73caa9f3 | 312 | demangler_in_ld=yes) |
9c948bc2 | 313 | |
7349ace9 | 314 | # ---------------------- |
315 | # Find default assembler | |
316 | # ---------------------- | |
317 | ||
01dc27ef | 318 | # With GNU as |
319 | AC_ARG_WITH(gnu-as, | |
bc6c87c1 | 320 | [AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])], |
c4f70bb2 | 321 | gas_flag="$with_gnu_as", |
322 | gas_flag=no) | |
01dc27ef | 323 | |
f07251bc | 324 | AC_ARG_WITH(as, |
bc6c87c1 | 325 | [AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])], |
f8b7dbdb | 326 | DEFAULT_ASSEMBLER="$with_as") |
327 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
328 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
b452b31a | 329 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
16e09e89 | 330 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
f07251bc | 331 | gas_flag=yes |
332 | fi | |
42f1312d | 333 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
334 | [Define to enable the use of a default assembler.]) | |
f8b7dbdb | 335 | fi |
f07251bc | 336 | |
7349ace9 | 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 ($DEFAULT_ASSEMBLER)]) | |
6e014aa3 | 341 | else |
7349ace9 | 342 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
6e014aa3 | 343 | fi |
7349ace9 | 344 | else |
345 | AC_MSG_RESULT(no) | |
6e014aa3 | 346 | fi |
01dc27ef | 347 | |
7349ace9 | 348 | # --------------- |
349 | # Find C compiler | |
350 | # --------------- | |
1c6c0617 | 351 | |
f7a804c7 | 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 | ||
0fa54ff1 | 361 | # Find the native compiler |
362 | AC_PROG_CC | |
7ab76cec | 363 | AC_PROG_CXX |
7a43a9bc | 364 | ACX_PROG_GNAT([-I"$srcdir"/ada/libgnat]) |
f1984c57 | 365 | |
c20b03af | 366 | # Do configure tests with the C++ compiler, since that's what we build with. |
367 | AC_LANG(C++) | |
368 | ||
c81c13fb | 369 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer |
370 | # optimizations to be activated explicitly by the toplevel. | |
371 | case "$CC" in | |
372 | */prev-gcc/xgcc*) ;; | |
9dbf9573 | 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]]*[[ ]]//" ` ;; | |
c81c13fb | 375 | esac |
376 | AC_SUBST(CFLAGS) | |
56d581e9 | 377 | AC_SUBST(CXXFLAGS) |
c81c13fb | 378 | |
d89b8910 | 379 | # Determine PICFLAG for target gnatlib. |
380 | GCC_PICFLAG_FOR_TARGET | |
381 | AC_SUBST(PICFLAG_FOR_TARGET) | |
382 | ||
966842d4 | 383 | # ------------------------- |
384 | # Check C compiler features | |
385 | # ------------------------- | |
386 | ||
b9146087 | 387 | AC_USE_SYSTEM_EXTENSIONS |
7349ace9 | 388 | AC_PROG_CPP |
389 | AC_C_INLINE | |
7349ace9 | 390 | |
075f1161 | 391 | AC_SYS_LARGEFILE |
392 | ||
7349ace9 | 393 | # sizeof(char) is 1 by definition. |
b085c511 | 394 | AC_CHECK_SIZEOF(void *) |
395 | AC_CHECK_SIZEOF(short) | |
396 | AC_CHECK_SIZEOF(int) | |
397 | AC_CHECK_SIZEOF(long) | |
cd29f3a4 | 398 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
82e964b0 | 399 | GCC_STDINT_TYPES |
1c8ad86a | 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 | |
7349ace9 | 403 | |
d515e136 | 404 | # check what underlying integer type int64_t uses |
d515e136 | 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 | |
d515e136 | 427 | |
4176ce09 | 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 $ac_cv_std_swap_in_utility = yes; then | |
433 | AC_DEFINE(HAVE_SWAP_IN_UTILITY, 1, | |
434 | [Define if <utility> defines std::swap.]) | |
435 | fi | |
436 | ||
605922af | 437 | # Check whether compiler is affected by placement new aliasing bug (PR 29286). |
438 | # If the host compiler is affected by the bug, and we build with optimization | |
439 | # enabled (which happens e.g. when cross-compiling), the pool allocator may | |
440 | # get miscompiled. Use -fno-strict-aliasing to work around this problem. | |
441 | # Since there is no reliable feature check for the presence of this bug, | |
442 | # we simply use a GCC version number check. (This should never trigger for | |
443 | # stages 2 or 3 of a native bootstrap.) | |
444 | aliasing_flags= | |
445 | if test "$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 $CXX is affected by placement new aliasing bug]) | |
f00f02a3 | 452 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
605922af | 453 | #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
454 | #error compiler not affected by placement new aliasing bug | |
455 | #endif | |
f00f02a3 | 456 | ])], |
605922af | 457 | [AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'], |
458 | [AC_MSG_RESULT([no])]) | |
459 | ||
460 | CXXFLAGS="$saved_CXXFLAGS" | |
461 | fi | |
462 | AC_SUBST(aliasing_flags) | |
d515e136 | 463 | |
464 | ||
465 | ||
7349ace9 | 466 | # --------------------- |
467 | # Warnings and checking | |
468 | # --------------------- | |
469 | ||
1f59d204 | 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 | |
1d752508 | 474 | # * overlong strings |
7e783eb3 | 475 | # * C++11 narrowing conversions in { } |
1f59d204 | 476 | # So, we only use -pedantic if we can disable those warnings. |
477 | ||
e0fad718 | 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=]) | |
a487af0e | 484 | ACX_PROG_CXX_WARNING_OPTS( |
2e966e2a | 485 | m4_quote(m4_do([-W -Wall -Wclass-is-pod -Wmismatched-tags ], |
486 | [-Wno-narrowing -Wstruct-not-pod -Wwrite-strings ], | |
62c34df8 | 487 | [-Wcast-qual -Wno-error=format-diag $wf_opt])), |
488 | [loose_warn]) | |
9fce6407 | 489 | ACX_PROG_CC_WARNING_OPTS( |
62c34df8 | 490 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ], |
491 | [-Wno-error=format-diag])), [c_loose_warn]) | |
a487af0e | 492 | ACX_PROG_CXX_WARNING_OPTS( |
1c486c58 | 493 | m4_quote(m4_do([-Wmissing-format-attribute ], |
494 | [-Woverloaded-virtual])), [strict_warn]) | |
7ab76cec | 495 | ACX_PROG_CC_WARNING_OPTS( |
496 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
a487af0e | 497 | ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC( |
c3aa71d4 | 498 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
499 | [-Wno-overlength-strings])), [strict_warn]) | |
a487af0e | 500 | ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
c7cc973b | 501 | |
502 | # The above macros do nothing if the compiler is not GCC. However, the | |
7ab76cec | 503 | # Makefile has more goo to add other flags, so these variables are used |
504 | # to enable warnings only for GCC. | |
0fa54ff1 | 505 | warn_cflags= |
7ab76cec | 506 | warn_cxxflags= |
0fa54ff1 | 507 | if test "x$GCC" = "xyes"; then |
508 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
7ab76cec | 509 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
0fa54ff1 | 510 | fi |
511 | AC_SUBST(warn_cflags) | |
7ab76cec | 512 | AC_SUBST(warn_cxxflags) |
0fa54ff1 | 513 | |
7c801b60 | 514 | # Disable exceptions and RTTI if building with g++ |
515 | ACX_PROG_CC_WARNING_OPTS( | |
3e15d79c | 516 | m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])), |
517 | [noexception_flags]) | |
7c801b60 | 518 | |
e3ca137a | 519 | # Enable expensive internal checks |
1af67e62 | 520 | is_release= |
521 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
522 | is_release=yes | |
523 | fi | |
a179eb24 | 524 | |
485205d1 | 525 | AC_ARG_ENABLE(checking, |
bc6c87c1 | 526 | [AS_HELP_STRING([[--enable-checking[=LIST]]], |
527 | [enable expensive run-time checks. With LIST, | |
528 | enable only specific categories of checks. | |
529 | Categories are: yes,no,all,none,release. | |
c05979a1 | 530 | Flags are: assert,df,extra,fold,gc,gcac,gimple,misc, |
bc6c87c1 | 531 | rtlflag,rtl,runtime,tree,valgrind,types])], |
a1fa05f0 | 532 | [ac_checking_flags="${enableval}"],[ |
533 | # Determine the default checks. | |
534 | if test x$is_release = x ; then | |
c05979a1 | 535 | ac_checking_flags=yes,extra |
a1fa05f0 | 536 | else |
537 | ac_checking_flags=release | |
538 | fi]) | |
a1fa05f0 | 539 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
624a5fae | 540 | for check in release $ac_checking_flags |
a1fa05f0 | 541 | do |
542 | case $check in | |
5391b316 | 543 | # these set all the flags to specific states |
314966f4 | 544 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
c05979a1 | 545 | ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ; |
75a70cf9 | 546 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
fcd42b1e | 547 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 548 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
80296012 | 549 | ac_types_checking=1 ;; |
5ccba2dc | 550 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
c05979a1 | 551 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
75a70cf9 | 552 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
fcd42b1e | 553 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
f03e0ae4 | 554 | ac_tree_checking= ; ac_valgrind_checking= ; |
555 | ac_types_checking= ;; | |
5ccba2dc | 556 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
c05979a1 | 557 | ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ; |
75a70cf9 | 558 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
5391b316 | 559 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 560 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
561 | ac_types_checking=1 ;; | |
5ccba2dc | 562 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
c05979a1 | 563 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
75a70cf9 | 564 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
5391b316 | 565 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
f03e0ae4 | 566 | ac_tree_checking= ; ac_valgrind_checking= ; |
567 | ac_types_checking= ;; | |
5391b316 | 568 | # these enable particular checks |
a1fa05f0 | 569 | assert) ac_assert_checking=1 ;; |
c05979a1 | 570 | df) ac_df_checking=1 ;; |
571 | extra) ac_extra_checking=1 ;; | |
a1fa05f0 | 572 | fold) ac_fold_checking=1 ;; |
573 | gc) ac_gc_checking=1 ;; | |
574 | gcac) ac_gc_always_collect=1 ;; | |
75a70cf9 | 575 | gimple) ac_gimple_checking=1 ;; |
a1fa05f0 | 576 | misc) ac_checking=1 ;; |
a1fa05f0 | 577 | rtl) ac_rtl_checking=1 ;; |
5391b316 | 578 | rtlflag) ac_rtlflag_checking=1 ;; |
06350693 | 579 | runtime) ac_runtime_checking=1 ;; |
a1fa05f0 | 580 | tree) ac_tree_checking=1 ;; |
f03e0ae4 | 581 | types) ac_types_checking=1 ;; |
5391b316 | 582 | valgrind) ac_valgrind_checking=1 ;; |
a1fa05f0 | 583 | *) AC_MSG_ERROR(unknown check category $check) ;; |
584 | esac | |
585 | done | |
586 | IFS="$ac_save_IFS" | |
587 | ||
0d74b24d | 588 | nocommon_flag="" |
42f1312d | 589 | if test x$ac_checking != x ; then |
9ccb8d8d | 590 | AC_DEFINE(CHECKING_P, 1, |
591 | [Define to 0/1 if you want more run-time sanity checks. This one gets a grab | |
592 | bag of miscellaneous but relatively cheap checks.]) | |
0d74b24d | 593 | nocommon_flag=-fno-common |
92a110bb | 594 | else |
595 | AC_DEFINE(CHECKING_P, 0) | |
42f1312d | 596 | fi |
0d74b24d | 597 | AC_SUBST(nocommon_flag) |
9ccb8d8d | 598 | if test x$ac_extra_checking != x ; then |
599 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 1, | |
600 | [Define to 0/1 if you want extra run-time checking that might affect code | |
601 | generation.]) | |
602 | else | |
603 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 0) | |
604 | fi | |
5ccba2dc | 605 | if test x$ac_df_checking != x ; then |
606 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
607 | [Define if you want more run-time sanity checks for dataflow.]) | |
608 | fi | |
997731eb | 609 | if test x$ac_assert_checking != x ; then |
610 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
611 | [Define if you want assertions enabled. This is a cheap check.]) | |
612 | fi | |
75a70cf9 | 613 | if test x$ac_gimple_checking != x ; then |
614 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
615 | [Define if you want operations on GIMPLE (the basic data structure of | |
616 | the high-level optimizers) to be checked for dynamic type safety at | |
617 | runtime. This is moderately expensive.]) | |
618 | fi | |
fcd42b1e | 619 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
06350693 | 620 | if test x$ac_runtime_checking != x ; then |
621 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
622 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
623 | fi | |
42f1312d | 624 | if test x$ac_tree_checking != x ; then |
625 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
626 | [Define if you want all operations on trees (the basic data | |
627 | structure of the front ends) to be checked for dynamic type safety | |
894a34ef | 628 | at runtime. This is moderately expensive. |
4e7212d1 | 629 | ]) |
1410e798 | 630 | TREECHECKING=yes |
42f1312d | 631 | fi |
f03e0ae4 | 632 | if test x$ac_types_checking != x ; then |
633 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
634 | [Define if you want all gimple types to be verified after gimplifiation. | |
635 | This is cheap. | |
636 | ]) | |
637 | fi | |
1410e798 | 638 | AC_SUBST(TREECHECKING) |
42f1312d | 639 | if test x$ac_rtl_checking != x ; then |
640 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
641 | [Define if you want all operations on RTL (the basic data structure | |
642 | of the optimizer and back end) to be checked for dynamic type safety | |
643 | at runtime. This is quite expensive.]) | |
644 | fi | |
b0e7e012 | 645 | if test x$ac_rtlflag_checking != x ; then |
646 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
647 | [Define if you want RTL flag accesses to be checked against the RTL | |
648 | codes that are supported for each access macro. This is relatively | |
649 | cheap.]) | |
650 | fi | |
42f1312d | 651 | if test x$ac_gc_checking != x ; then |
652 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
653 | [Define if you want the garbage collector to do object poisoning and | |
654 | other memory allocation checks. This is quite expensive.]) | |
655 | fi | |
656 | if test x$ac_gc_always_collect != x ; then | |
657 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
658 | [Define if you want the garbage collector to operate in maximally | |
659 | paranoid mode, validating the entire heap and collecting garbage at | |
660 | every opportunity. This is extremely expensive.]) | |
661 | fi | |
fc3df357 | 662 | if test x$ac_fold_checking != x ; then |
663 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
664 | [Define if you want fold checked that it never destructs its argument. | |
665 | This is quite expensive.]) | |
666 | fi | |
0fa54ff1 | 667 | valgrind_path_defines= |
668 | valgrind_command= | |
3f720cf7 | 669 | |
670 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
671 | dnl # an if statement. This was the source of very frustrating bugs | |
672 | dnl # in converting to autoconf 2.5x! | |
673 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
674 | ||
b90976fa | 675 | # It is certainly possible that there's valgrind but no valgrind.h. |
676 | # GCC relies on making annotations so we must have both. | |
677 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
678 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
679 | [[#include <valgrind/memcheck.h> | |
a519c4d3 | 680 | #ifndef VALGRIND_DISCARD |
681 | #error VALGRIND_DISCARD not defined | |
11e66330 | 682 | #endif]])], |
a519c4d3 | 683 | [gcc_cv_header_valgrind_memcheck_h=yes], |
684 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
b90976fa | 685 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) |
686 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
687 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
688 | [[#include <memcheck.h> | |
8adead19 | 689 | #ifndef VALGRIND_DISCARD |
690 | #error VALGRIND_DISCARD not defined | |
11e66330 | 691 | #endif]])], |
692 | [gcc_cv_header_memcheck_h=yes], | |
693 | [gcc_cv_header_memcheck_h=no]) | |
b90976fa | 694 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
695 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
696 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
697 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
698 | fi | |
699 | if test $gcc_cv_header_memcheck_h = yes; then | |
700 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
701 | [Define if valgrind's memcheck.h header is installed.]) | |
702 | fi | |
703 | ||
704 | if test x$ac_valgrind_checking != x ; then | |
0fa54ff1 | 705 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
706 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a519c4d3 | 707 | if test "x$valgrind_path" = "x" \ |
708 | || (test $have_valgrind_h = no \ | |
709 | && test $gcc_cv_header_memcheck_h = no \ | |
710 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
711 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
0fa54ff1 | 712 | fi |
713 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
714 | valgrind_command="$valgrind_path -q" | |
715 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
716 | [Define if you want to run subprograms and generated programs | |
717 | through valgrind (a memory checker). This is extremely expensive.]) | |
718 | fi | |
719 | AC_SUBST(valgrind_path_defines) | |
720 | AC_SUBST(valgrind_command) | |
59420fa7 | 721 | |
d5a37d75 | 722 | # Enable code coverage collection |
723 | AC_ARG_ENABLE(coverage, | |
bc6c87c1 | 724 | [AS_HELP_STRING([[--enable-coverage[=LEVEL]]], |
725 | [enable compiler's code coverage collection. | |
726 | Use to measure compiler performance and locate | |
727 | unused parts of the compiler. With LEVEL, specify | |
728 | optimization. Values are opt, noopt, | |
729 | default is noopt])], | |
d5a37d75 | 730 | [case "${enableval}" in |
034b0f6e | 731 | yes|noopt) |
17187f6a | 732 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" |
034b0f6e | 733 | ;; |
734 | opt) | |
17187f6a | 735 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" |
034b0f6e | 736 | ;; |
737 | no) | |
738 | # a.k.a. --disable-coverage | |
739 | coverage_flags="" | |
740 | ;; | |
741 | *) | |
742 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
743 | ;; | |
d5a37d75 | 744 | esac], |
5328265b | 745 | [coverage_flags=""]) |
d5a37d75 | 746 | AC_SUBST(coverage_flags) |
747 | ||
86736f9e | 748 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
bc6c87c1 | 749 | [AS_HELP_STRING([--enable-gather-detailed-mem-stats], |
750 | [enable detailed memory allocation stats gathering])], [], | |
86736f9e | 751 | [enable_gather_detailed_mem_stats=no]) |
ecd52ea9 | 752 | gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi` |
753 | AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats, | |
754 | [Define to enable detailed memory allocation stats gathering.]) | |
86736f9e | 755 | |
b90976fa | 756 | AC_ARG_ENABLE(valgrind-annotations, |
757 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
758 | [enable valgrind runtime interaction])], [], | |
759 | [enable_valgrind_annotations=no]) | |
760 | if test x$enable_valgrind_annotations != xno \ | |
761 | || test x$ac_valgrind_checking != x; then | |
762 | if (test $have_valgrind_h = no \ | |
763 | && test $gcc_cv_header_memcheck_h = no \ | |
764 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
765 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
766 | fi | |
767 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
768 | [Define to get calls to the valgrind runtime enabled.]) | |
769 | fi | |
770 | ||
966842d4 | 771 | # ------------------------------- |
772 | # Miscenalleous configure options | |
773 | # ------------------------------- | |
7349ace9 | 774 | |
775 | # With stabs | |
776 | AC_ARG_WITH(stabs, | |
bc6c87c1 | 777 | [AS_HELP_STRING([--with-stabs], |
778 | [arrange to use stabs instead of host debug format])], | |
7349ace9 | 779 | stabs="$with_stabs", |
780 | stabs=no) | |
781 | ||
7349ace9 | 782 | # Determine whether or not multilibs are enabled. |
783 | AC_ARG_ENABLE(multilib, | |
bc6c87c1 | 784 | [AS_HELP_STRING([--enable-multilib], |
785 | [enable library support for multiple ABIs])], | |
7349ace9 | 786 | [], [enable_multilib=yes]) |
787 | AC_SUBST(enable_multilib) | |
f7b90398 | 788 | |
77adc39e | 789 | # Determine whether or not multiarch is enabled. |
790 | AC_ARG_ENABLE(multiarch, | |
791 | [AS_HELP_STRING([--enable-multiarch], | |
792 | [enable support for multiarch paths])], | |
a2869930 | 793 | [case "${enableval}" in |
794 | yes|no|auto) enable_multiarch=$enableval;; | |
795 | *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;; | |
77adc39e | 796 | esac], [enable_multiarch=auto]) |
797 | if test x${enable_multiarch} = xauto; then | |
798 | if test x${with_native_system_header_dir} != x; then | |
799 | ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)" | |
800 | enable_multiarch=no | |
801 | fi | |
802 | if test x$host != x$target && test "x$with_sysroot" = x; then | |
803 | ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)" | |
804 | enable_multiarch=no | |
805 | fi | |
806 | fi | |
807 | AC_MSG_CHECKING(for multiarch configuration) | |
808 | AC_SUBST(enable_multiarch) | |
809 | AC_MSG_RESULT($enable_multiarch$ma_msg_suffix) | |
810 | ||
811 | # needed for setting the multiarch name for soft-float/hard-float ABIs | |
af69b10a | 812 | AC_SUBST(with_cpu) |
77adc39e | 813 | AC_SUBST(with_float) |
814 | ||
de2dc831 | 815 | # default stack clash protection guard size as power of twos in bytes. |
816 | # Please keep these in sync with params.def. | |
817 | stk_clash_min=12 | |
818 | stk_clash_max=30 | |
819 | ||
820 | # Keep the default value when the option is not used to 0, this allows us to | |
821 | # distinguish between the cases where the user specifially set a value via | |
822 | # configure and when the normal default value is used. | |
823 | AC_ARG_WITH(stack-clash-protection-guard-size, | |
824 | [AS_HELP_STRING([--with-stack-clash-protection-guard-size=size], | |
825 | [Set the default stack clash protection guard size for specific targets as a power of two in bytes.])], | |
826 | [DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0]) | |
827 | if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \ | |
828 | && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \ | |
829 | || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then | |
830 | AC_MSG_ERROR(m4_normalize([ | |
831 | Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \ | |
832 | Must be between $stk_clash_min and $stk_clash_max.])) | |
833 | fi | |
834 | ||
835 | AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE, | |
836 | [Define to larger than zero set the default stack clash protector size.]) | |
837 | ||
70ac8784 | 838 | # Enable __cxa_atexit for C++. |
839 | AC_ARG_ENABLE(__cxa_atexit, | |
bc6c87c1 | 840 | [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])], |
70ac8784 | 841 | [], []) |
bc5ae993 | 842 | |
e38498a2 | 843 | # Enable C extension for decimal float if target supports it. |
23340821 | 844 | GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) |
e38498a2 | 845 | |
10de71e1 | 846 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
e38498a2 | 847 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
848 | [Define to 1 to enable decimal float extension to C.]) | |
849 | ||
a87eb011 | 850 | # Use default_decimal_float for dependency. |
851 | enable_decimal_float=$default_decimal_float | |
852 | ||
10de71e1 | 853 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` |
854 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
855 | [Define to 1 to specify that we are using the BID decimal floating | |
856 | point format instead of DPD]) | |
857 | ||
9421ebb9 | 858 | # Enable C extension for fixed-point arithmetic. |
859 | AC_ARG_ENABLE(fixed-point, | |
bc6c87c1 | 860 | [AS_HELP_STRING([--enable-fixed-point], |
861 | [enable fixed-point arithmetic extension to C])], | |
862 | [], | |
9421ebb9 | 863 | [ |
864 | case $target in | |
bbbe4599 | 865 | arm*) |
866 | enable_fixed_point=yes | |
867 | ;; | |
868 | ||
9421ebb9 | 869 | mips*-*-*) |
5641963c | 870 | enable_fixed_point=yes |
9421ebb9 | 871 | ;; |
872 | *) | |
e6425baf | 873 | AC_MSG_WARN([fixed-point is not supported for this target, ignored]) |
9421ebb9 | 874 | enable_fixed_point=no |
875 | ;; | |
876 | esac | |
877 | ]) | |
878 | AC_SUBST(enable_fixed_point) | |
879 | ||
880 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
881 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
882 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
883 | ||
3e637c99 | 884 | # Enable threads |
885 | # Pass with no value to take the default | |
886 | # Pass with a value to specify a thread package | |
887 | AC_ARG_ENABLE(threads, | |
bc6c87c1 | 888 | [AS_HELP_STRING([[--enable-threads[=LIB]]], |
889 | [enable thread usage for target GCC, | |
890 | using LIB thread package])],, | |
334c8279 | 891 | [enable_threads='']) |
3e637c99 | 892 | |
c024e802 | 893 | AC_ARG_ENABLE(tls, |
bc6c87c1 | 894 | [AS_HELP_STRING([--enable-tls], |
895 | [enable or disable generation of tls code | |
896 | overriding the assembler check for tls support])], | |
c024e802 | 897 | [ |
898 | case $enable_tls in | |
899 | yes | no) ;; | |
900 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
901 | Valid choices are 'yes' and 'no'.]) ;; | |
902 | esac | |
903 | ], [enable_tls='']) | |
904 | ||
940c7236 | 905 | AC_ARG_ENABLE(vtable-verify, |
906 | [AS_HELP_STRING([--enable-vtable-verify], | |
907 | [enable vtable verification feature])],, | |
908 | [enable_vtable_verify=no]) | |
909 | vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi` | |
910 | AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify, | |
911 | [Define 0/1 if vtable verification feature is enabled.]) | |
912 | ||
5c872430 | 913 | AC_ARG_ENABLE(objc-gc, |
bc6c87c1 | 914 | [AS_HELP_STRING([--enable-objc-gc], |
915 | [enable the use of Boehm's garbage collector with | |
916 | the GNU Objective-C runtime])], | |
7a28a1b6 | 917 | if test x$enable_objc_gc = xno; then |
5c872430 | 918 | objc_boehm_gc='' |
919 | else | |
920 | objc_boehm_gc=1 | |
921 | fi, | |
922 | objc_boehm_gc='') | |
923 | ||
27b15aee | 924 | AC_ARG_WITH(dwarf2, |
bc6c87c1 | 925 | [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])], |
a81417f9 | 926 | dwarf2="$with_dwarf2", |
27b15aee | 927 | dwarf2=no) |
928 | ||
a1415e6d | 929 | AC_ARG_ENABLE(shared, |
bc6c87c1 | 930 | [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])], |
10393ad5 | 931 | [ |
932 | case $enable_shared in | |
933 | yes | no) ;; | |
934 | *) | |
935 | enable_shared=no | |
936 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
937 | for pkg in $enableval; do | |
938 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
939 | enable_shared=yes | |
940 | fi | |
941 | done | |
942 | IFS="$ac_save_ifs" | |
943 | ;; | |
944 | esac | |
945 | ], [enable_shared=yes]) | |
a1415e6d | 946 | AC_SUBST(enable_shared) |
947 | ||
bab25aa4 | 948 | AC_ARG_ENABLE(gcov, |
949 | [ --disable-gcov don't provide libgcov and related host tools], | |
950 | [], [enable_gcov=yes]) | |
951 | AC_SUBST(enable_gcov) | |
952 | ||
a24a71cc | 953 | AC_ARG_WITH(specs, |
954 | [AS_HELP_STRING([--with-specs=SPECS], | |
955 | [add SPECS to driver command-line processing])], | |
956 | [CONFIGURE_SPECS=$withval], | |
957 | [CONFIGURE_SPECS=] | |
958 | ) | |
959 | AC_SUBST(CONFIGURE_SPECS) | |
960 | ||
d25dc80e | 961 | ACX_PKGVERSION([GCC]) |
88d75d9d | 962 | ACX_BUGURL([https://gcc.gnu.org/bugs/]) |
d25dc80e | 963 | |
c24c5e46 | 964 | # Sanity check enable_languages in case someone does not run the toplevel |
965 | # configure # script. | |
966 | AC_ARG_ENABLE(languages, | |
bc6c87c1 | 967 | [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])], |
c24c5e46 | 968 | [case ,${enable_languages}, in |
969 | ,,|,yes,) | |
970 | # go safe -- we cannot be much sure without the toplevel | |
971 | # configure's | |
972 | # analysis of which target libs are present and usable | |
973 | enable_languages=c | |
974 | ;; | |
975 | *,all,*) | |
976 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
977 | ;; | |
978 | *,c,*) | |
979 | ;; | |
980 | *) | |
981 | enable_languages=c,${enable_languages} | |
982 | ;; | |
983 | esac], | |
984 | [enable_languages=c]) | |
985 | ||
a3d93be3 | 986 | if test x"$enable_as_accelerator_for" != x; then |
987 | AC_DEFINE(ACCEL_COMPILER, 1, | |
988 | [Define if this compiler should be built as the offload target compiler.]) | |
989 | enable_as_accelerator=yes | |
990 | case "${target}" in | |
991 | *-intelmicemul-*) | |
992 | # In this case we expect offload compiler to be built as native, so we | |
993 | # need to rename the driver to avoid clashes with host's drivers. | |
994 | program_transform_name="s&^&${target}-&" ;; | |
995 | esac | |
996 | sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#" | |
997 | program_transform_name=`echo $program_transform_name | sed $sedscript` | |
998 | accel_dir_suffix=/accel/${target_noncanonical} | |
999 | real_target_noncanonical=${enable_as_accelerator_for} | |
1000 | fi | |
1001 | AC_SUBST(enable_as_accelerator) | |
1002 | AC_SUBST(real_target_noncanonical) | |
1003 | AC_SUBST(accel_dir_suffix) | |
1004 | ||
1005 | for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do | |
1006 | tgt=`echo $tgt | sed 's/=.*//'` | |
56686608 | 1007 | |
1008 | if echo "$tgt" | grep "^hsa" > /dev/null ; then | |
1009 | enable_hsa=1 | |
1010 | else | |
1011 | enable_offloading=1 | |
1012 | fi | |
1013 | ||
a3d93be3 | 1014 | if test x"$offload_targets" = x; then |
1015 | offload_targets=$tgt | |
1016 | else | |
daa8f58f | 1017 | offload_targets="$offload_targets,$tgt" |
a3d93be3 | 1018 | fi |
1019 | done | |
1020 | AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", | |
daa8f58f | 1021 | [Define to offload targets, separated by commas.]) |
56686608 | 1022 | if test x"$enable_offloading" != x; then |
a3d93be3 | 1023 | AC_DEFINE(ENABLE_OFFLOADING, 1, |
1024 | [Define this to enable support for offloading.]) | |
5f3001a9 | 1025 | else |
1026 | AC_DEFINE(ENABLE_OFFLOADING, 0, | |
1027 | [Define this to enable support for offloading.]) | |
a3d93be3 | 1028 | fi |
1029 | ||
56686608 | 1030 | if test x"$enable_hsa" = x1 ; then |
1031 | AC_DEFINE(ENABLE_HSA, 1, | |
1032 | [Define this to enable support for generating HSAIL.]) | |
1033 | fi | |
1034 | ||
f555bf81 | 1035 | AC_ARG_WITH(multilib-list, |
bb009361 | 1036 | [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])], |
f555bf81 | 1037 | :, |
1038 | with_multilib_list=default) | |
1039 | ||
966842d4 | 1040 | # ------------------------- |
1041 | # Checks for other programs | |
1042 | # ------------------------- | |
6f63674e | 1043 | |
0dbd1c74 | 1044 | AC_PROG_MAKE_SET |
1045 | ||
01dc27ef | 1046 | # Find some useful tools |
1047 | AC_PROG_AWK | |
e8b212b8 | 1048 | # We need awk to create options.c and options.h. |
b007b385 | 1049 | # Bail out if it's missing. |
1050 | case ${AWK} in | |
1051 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
1052 | esac | |
1053 | ||
f9708620 | 1054 | gcc_AC_PROG_LN_S |
599a3eac | 1055 | ACX_PROG_LN($LN_S) |
01dc27ef | 1056 | AC_PROG_RANLIB |
59bc2a23 | 1057 | ranlib_flags="" |
72318bfa | 1058 | AC_SUBST(ranlib_flags) |
1059 | ||
f9708620 | 1060 | gcc_AC_PROG_INSTALL |
01dc27ef | 1061 | |
8fea036f | 1062 | # See if cmp has --ignore-initial. |
1063 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
1064 | ||
72f3368f | 1065 | # See if we have the mktemp command. |
1066 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
1067 | ||
a1ad7483 | 1068 | # See if makeinfo has been installed and is modern enough |
1069 | # that we can use it. | |
c7cc973b | 1070 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
049ccec1 | 1071 | [GNU texinfo.* \([0-9][0-9.]*\)], |
69f31627 | 1072 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
049ccec1 | 1073 | if test $gcc_cv_prog_makeinfo_modern = no; then |
1074 | AC_MSG_WARN([ | |
1075 | *** Makeinfo is missing or too old. | |
c94ba072 | 1076 | *** Info documentation will not be built.]) |
049ccec1 | 1077 | BUILD_INFO= |
049ccec1 | 1078 | else |
a1ad7483 | 1079 | BUILD_INFO=info |
049ccec1 | 1080 | fi |
a1ad7483 | 1081 | AC_SUBST(BUILD_INFO) |
049ccec1 | 1082 | |
0dd06be9 | 1083 | # Is pod2man recent enough to regenerate manpages? |
1084 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7e8ebf06 | 1085 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fefb5ea6 | 1086 | AC_MSG_RESULT(yes) |
a1ad7483 | 1087 | GENERATED_MANPAGES=generated-manpages |
fefb5ea6 | 1088 | else |
1089 | AC_MSG_RESULT(no) | |
1090 | GENERATED_MANPAGES= | |
1091 | fi | |
a1ad7483 | 1092 | AC_SUBST(GENERATED_MANPAGES) |
fefb5ea6 | 1093 | |
c7cc973b | 1094 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
1095 | ||
345a1501 | 1096 | # How about lex? |
1097 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
1098 | dnl LEXLIB is not useful in gcc. | |
a1ad7483 | 1099 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
345a1501 | 1100 | |
1101 | # Bison? | |
a1ad7483 | 1102 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
1103 | ||
1104 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
1105 | # check for build == host before using them. | |
345a1501 | 1106 | |
6ac26439 | 1107 | # NM |
28c79bfe | 1108 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
1109 | && test -d ../binutils ; then | |
4f132c11 | 1110 | NM='${objdir}/../binutils/nm-new' |
6ac26439 | 1111 | else |
1112 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
1113 | fi | |
1114 | ||
1115 | # AR | |
28c79bfe | 1116 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
1117 | && test -d ../binutils ; then | |
4f132c11 | 1118 | AR='${objdir}/../binutils/ar' |
6ac26439 | 1119 | else |
1120 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
1121 | fi | |
1122 | ||
863e76f9 | 1123 | # The jit documentation looks better if built with sphinx, but can be |
1124 | # built with texinfo if sphinx is not available. | |
1125 | # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly. | |
1126 | AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo) | |
6ac26439 | 1127 | |
966842d4 | 1128 | # -------------------- |
1129 | # Checks for C headers | |
1130 | # -------------------- | |
1131 | ||
2cd18f76 | 1132 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
1133 | # works later. *sigh* This needs to come before all header checks. | |
1134 | AC_PROG_CPP_WERROR | |
1135 | ||
966842d4 | 1136 | AC_HEADER_STDC |
1137 | AC_HEADER_TIME | |
d856c8a6 | 1138 | ACX_HEADER_STRING |
966842d4 | 1139 | AC_HEADER_SYS_WAIT |
f3b719b3 | 1140 | AC_HEADER_TIOCGWINSZ |
e5d424c9 | 1141 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
eb4b8219 | 1142 | fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
966842d4 | 1143 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
45cde32d | 1144 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
966842d4 | 1145 | |
1146 | # Check for thread headers. | |
1147 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
1148 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
1149 | ||
1150 | # These tests can't be done till we know if we have limits.h. | |
1151 | gcc_AC_C_CHAR_BIT | |
fd158959 | 1152 | AC_C_BIGENDIAN |
966842d4 | 1153 | |
60f35dba | 1154 | # ---------------------- |
1155 | # Checks for C++ headers | |
1156 | # ---------------------- | |
1157 | ||
54486c25 | 1158 | dnl Autoconf will give an error in the configure script if there is no |
1159 | dnl C++ preprocessor. Hack to prevent that. | |
1160 | m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl | |
1161 | AC_PROG_CXXCPP | |
1162 | m4_popdef([AC_MSG_ERROR])[]dnl | |
1163 | ||
60f35dba | 1164 | AC_CHECK_HEADERS(unordered_map) |
1165 | AC_CHECK_HEADERS(tr1/unordered_map) | |
1166 | AC_CHECK_HEADERS(ext/hash_map) | |
1167 | ||
b8bd120b | 1168 | # -------- |
1169 | # Dependency checking. | |
1170 | # -------- | |
1171 | ||
b8bd120b | 1172 | ZW_CREATE_DEPDIR |
1173 | AC_CONFIG_COMMANDS([gccdepdir],[ | |
1174 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR | |
1175 | for lang in $subdirs c-family common | |
1176 | do | |
1177 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR | |
1178 | done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) | |
1179 | ||
b0e45289 | 1180 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
60f35dba | 1181 | |
966842d4 | 1182 | # -------- |
1183 | # UNSORTED | |
1184 | # -------- | |
1185 | ||
966842d4 | 1186 | |
45449d9f | 1187 | # These libraries may be used by collect2. |
1188 | # We may need a special search path to get them linked. | |
1189 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1190 | [save_LIBS="$LIBS" | |
8e01c6f6 | 1191 | for libs in '' -lld -lmld \ |
45449d9f | 1192 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1193 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1194 | do | |
1195 | LIBS="$libs" | |
1196 | AC_TRY_LINK_FUNC(ldopen, | |
1197 | [gcc_cv_collect2_libs="$libs"; break]) | |
1198 | done | |
1199 | LIBS="$save_LIBS" | |
1200 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1201 | case $gcc_cv_collect2_libs in | |
1202 | "none required") ;; | |
1203 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1204 | esac | |
1205 | AC_SUBST(COLLECT2_LIBS) | |
1206 | ||
8e01c6f6 | 1207 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1208 | # -lexc. So test for it. | |
1209 | save_LIBS="$LIBS" | |
1210 | LIBS= | |
1211 | AC_SEARCH_LIBS(exc_resume, exc) | |
1212 | GNAT_LIBEXC="$LIBS" | |
1213 | LIBS="$save_LIBS" | |
1214 | AC_SUBST(GNAT_LIBEXC) | |
1215 | ||
76fd9e61 | 1216 | # To support -mcpu=native on Solaris/SPARC, we need libkstat. |
1217 | save_LIBS="$LIBS" | |
1218 | LIBS= | |
1219 | AC_SEARCH_LIBS(kstat_open, kstat) | |
1220 | EXTRA_GCC_LIBS="$LIBS" | |
1221 | LIBS="$save_LIBS" | |
1222 | AC_SUBST(EXTRA_GCC_LIBS) | |
1223 | ||
96b74343 | 1224 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1225 | # they're both in the same place. jcf-dump needs them. | |
1226 | save_LIBS="$LIBS" | |
1227 | LIBS= | |
1228 | AC_SEARCH_LIBS(ldexp, m) | |
1229 | LDEXP_LIB="$LIBS" | |
1230 | LIBS="$save_LIBS" | |
1231 | AC_SUBST(LDEXP_LIB) | |
1232 | ||
d62c0949 | 1233 | # Some systems need dlopen |
1234 | save_LIBS="$LIBS" | |
1235 | LIBS= | |
1236 | AC_SEARCH_LIBS(dlopen, dl) | |
1237 | DL_LIB="$LIBS" | |
1238 | LIBS="$save_LIBS" | |
1239 | AC_SUBST(DL_LIB) | |
1240 | ||
a3477a0e | 1241 | # Use <inttypes.h> only if it exists, |
d515e136 | 1242 | # doesn't clash with <sys/types.h>, declares intmax_t and defines |
1243 | # PRId64 | |
a3477a0e | 1244 | AC_MSG_CHECKING(for inttypes.h) |
1245 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
11e66330 | 1246 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
d515e136 | 1247 | [[#define __STDC_FORMAT_MACROS |
1248 | #include <sys/types.h> | |
11e66330 | 1249 | #include <inttypes.h>]], |
d515e136 | 1250 | [[intmax_t i = -1; |
1251 | #ifndef PRId64 | |
1252 | choke me | |
1253 | #endif]])], | |
fd80090d | 1254 | [gcc_cv_header_inttypes_h=yes], |
11e66330 | 1255 | [gcc_cv_header_inttypes_h=no])]) |
a3477a0e | 1256 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
fd80090d | 1257 | if test $gcc_cv_header_inttypes_h = yes; then |
42f1312d | 1258 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1259 | [Define if you have a working <inttypes.h> header file.]) | |
fd80090d | 1260 | fi |
805483cf | 1261 | |
3dcfd230 | 1262 | # Look for the ZSTD package. |
1263 | ZSTD_INCLUDE= | |
1264 | ZSTD_LIB= | |
1265 | AC_SUBST(ZSTD_INCLUDE) | |
1266 | AC_SUBST(ZSTD_LIB) | |
1267 | ZSTD_CPPFLAGS= | |
1268 | ZSTD_LDFLAGS= | |
1269 | AC_ARG_WITH(zstd, | |
1270 | [AS_HELP_STRING([--with-zstd=PATH], | |
1271 | [specify prefix directory for installed zstd library. | |
1272 | Equivalent to --with-zstd-include=PATH/include | |
1273 | plus --with-zstd-lib=PATH/lib])]) | |
1274 | AC_ARG_WITH(zstd-include, | |
1275 | [AS_HELP_STRING([--with-zstd-include=PATH], | |
1276 | [specify directory for installed zstd include files])]) | |
1277 | AC_ARG_WITH(zstd-lib, | |
1278 | [AS_HELP_STRING([--with-zstd-lib=PATH], | |
1279 | [specify directory for the installed zstd library])]) | |
1280 | case "x$with_zstd" in | |
1281 | x) ;; | |
1282 | xno) | |
1283 | ZSTD_INCLUDE=no | |
1284 | ZSTD_LIB=no | |
1285 | ;; | |
1286 | *) ZSTD_INCLUDE=$with_zstd/include | |
1287 | ZSTD_LIB=$with_zstd/lib | |
1288 | ;; | |
1289 | esac | |
1290 | if test "x$with_zstd_include" != x; then | |
1291 | ZSTD_INCLUDE=$with_zstd_include | |
1292 | fi | |
1293 | if test "x$with_zstd_lib" != x; then | |
1294 | ZSTD_LIB=$with_zstd_lib | |
1295 | fi | |
1296 | if test "x$ZSTD_INCLUDE" != x \ | |
1297 | && test "x$ZSTD_INCLUDE" != xno; then | |
1298 | ZSTD_CPPFLAGS=-I$ZSTD_INCLUDE | |
1299 | fi | |
1300 | if test "x$ZSTD_LIB" != x \ | |
1301 | && test "x$ZSTD_LIB" != xno; then | |
1302 | ZSTD_LDFLAGS=-L$ZSTD_LIB | |
1303 | fi | |
1304 | ||
1305 | CXXFLAGS="$CXXFLAGS $ZSTD_CPPFLAGS" | |
1306 | LDFLAGS="$LDFLAGS $ZSTD_LDFLAGS" | |
1307 | ||
1308 | AC_MSG_CHECKING(for zstd.h) | |
1309 | AC_CACHE_VAL(gcc_cv_header_zstd_h, | |
1310 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
1311 | [[#include <zstd.h>]])], | |
1312 | [gcc_cv_header_zstd_h=yes], | |
1313 | [gcc_cv_header_zstd_h=no])]) | |
1314 | AC_MSG_RESULT($gcc_cv_header_zstd_h) | |
1315 | if test $gcc_cv_header_zstd_h = yes; then | |
1316 | AC_DEFINE(HAVE_ZSTD_H, 1, | |
1317 | [Define if you have a working <zstd.h> header file.]) | |
1318 | fi | |
1319 | ||
1320 | # LTO can use zstd compression algorithm | |
1321 | save_LIBS="$LIBS" | |
1322 | LIBS= | |
1323 | AC_SEARCH_LIBS(ZSTD_compress, zstd) | |
1324 | ZSTD_LIB="$LIBS" | |
1325 | LIBS="$save_LIBS" | |
1326 | AC_SUBST(ZSTD_LIB) | |
1327 | ||
aab9bda6 | 1328 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1329 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
488c4206 | 1330 | |
077a3c99 | 1331 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1332 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1333 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1334 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1335 | putchar_unlocked putc_unlocked) | |
93da3efe | 1336 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \ |
6cc8a944 | 1337 | popen sysconf strsignal getrusage nl_langinfo \ |
967958e4 | 1338 | gettimeofday mbstowcs wcswidth mmap setlocale \ |
c5db973f | 1339 | gcc_UNLOCKED_FUNCS madvise) |
4211624c | 1340 | |
b503c1a2 | 1341 | if test x$ac_cv_func_mbstowcs = xyes; then |
1342 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
11e66330 | 1343 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
b503c1a2 | 1344 | int main() |
1345 | { | |
1346 | mbstowcs(0, "", 0); | |
1347 | return 0; | |
11e66330 | 1348 | }]])], |
1349 | [gcc_cv_func_mbstowcs_works=yes], | |
1350 | [gcc_cv_func_mbstowcs_works=no], | |
1351 | [gcc_cv_func_mbstowcs_works=yes])]) | |
b503c1a2 | 1352 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1353 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1354 | [Define this macro if mbstowcs does not crash when its | |
1355 | first argument is NULL.]) | |
1356 | fi | |
1357 | fi | |
1358 | ||
478a5aa8 | 1359 | AC_CHECK_TYPE(ssize_t, int) |
1d5a5c71 | 1360 | AC_CHECK_TYPE(caddr_t, char *) |
33a62e3f | 1361 | |
749dea2a | 1362 | GCC_AC_FUNC_MMAP_BLACKLIST |
f1959ea2 | 1363 | |
1364 | case "${host}" in | |
8f966bdb | 1365 | *-*-*vms*) |
0d4639d6 | 1366 | # Under VMS, vfork works very differently than on Unix. The standard test |
8f966bdb | 1367 | # won't work, and it isn't easily adaptable. It makes more sense to |
1368 | # just force it. | |
1369 | ac_cv_func_vfork_works=yes | |
1370 | ;; | |
f1959ea2 | 1371 | esac |
11e66330 | 1372 | AC_FUNC_FORK |
0a0a425e | 1373 | |
2b15d2ba | 1374 | AM_ICONV |
6678cb4e | 1375 | |
c6976b58 | 1376 | # Until we have in-tree GNU iconv: |
1377 | LIBICONV_DEP= | |
29890f2e | 1378 | if test -f "$LTLIBICONV"; then |
1379 | LIBICONV_DEP=$LTLIBICONV | |
1380 | fi | |
c6976b58 | 1381 | AC_SUBST(LIBICONV_DEP) |
1382 | ||
1383 | AM_LC_MESSAGES | |
7093ff41 | 1384 | |
ac31415f | 1385 | AM_LANGINFO_CODESET |
1386 | ||
3c014a93 | 1387 | # We will need to find libiberty.h and ansidecl.h |
1388 | saved_CFLAGS="$CFLAGS" | |
f67e1abf | 1389 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
f4245e06 | 1390 | saved_CXXFLAGS="$CXXFLAGS" |
f67e1abf | 1391 | CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
c20b03af | 1392 | |
1393 | # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the | |
1394 | # normal autoconf function for these. But force definition of | |
1395 | # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre | |
1396 | # basename handling in libiberty.h. | |
1397 | AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[ | |
1398 | #undef HAVE_DECL_BASENAME | |
1399 | #define HAVE_DECL_BASENAME 1 | |
1400 | #include "ansidecl.h" | |
1401 | #include "system.h"]) | |
1402 | ||
93da3efe | 1403 | gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \ |
c20b03af | 1404 | madvise stpcpy strnlen strsignal strverscmp \ |
5b6507b0 | 1405 | strtol strtoul strtoll strtoull setenv unsetenv \ |
9b1f316f | 1406 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ |
c20b03af | 1407 | free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[ |
673b6e5a | 1408 | #include "ansidecl.h" |
3c014a93 | 1409 | #include "system.h"]) |
7014838c | 1410 | |
07c927cb | 1411 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
673b6e5a | 1412 | #include "ansidecl.h" |
3c014a93 | 1413 | #include "system.h" |
436f5383 | 1414 | #ifdef HAVE_SYS_RESOURCE_H |
1415 | #include <sys/resource.h> | |
1416 | #endif | |
1417 | ]) | |
1418 | ||
11e66330 | 1419 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1b9d008 | 1420 | #include "ansidecl.h" |
1421 | #include "system.h" | |
1422 | #ifdef HAVE_SYS_RESOURCE_H | |
1423 | #include <sys/resource.h> | |
1424 | #endif | |
11e66330 | 1425 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
dea92435 | 1426 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
c1b9d008 | 1427 | |
d71e0d30 | 1428 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1429 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1430 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1431 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
31a83412 | 1432 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1433 | #include "ansidecl.h" | |
1434 | #include "system.h" | |
1435 | #ifdef HAVE_LDFCN_H | |
d71e0d30 | 1436 | #undef FREAD |
1437 | #undef FWRITE | |
31a83412 | 1438 | #include <ldfcn.h> |
1439 | #endif | |
1440 | ]) | |
1441 | ||
c770a4cb | 1442 | gcc_AC_CHECK_DECLS(times, , ,[ |
1443 | #include "ansidecl.h" | |
1444 | #include "system.h" | |
1445 | #ifdef HAVE_SYS_TIMES_H | |
1446 | #include <sys/times.h> | |
1447 | #endif | |
1448 | ]) | |
1449 | ||
168c58e0 | 1450 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1451 | #include "ansidecl.h" | |
1452 | #include "system.h" | |
1453 | #include <signal.h> | |
1454 | ]) | |
1455 | ||
c770a4cb | 1456 | # More time-related stuff. |
1457 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
11e66330 | 1458 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1459 | #include "ansidecl.h" |
1460 | #include "system.h" | |
1461 | #ifdef HAVE_SYS_TIMES_H | |
1462 | #include <sys/times.h> | |
1463 | #endif | |
11e66330 | 1464 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c770a4cb | 1465 | if test $ac_cv_struct_tms = yes; then |
1466 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1467 | [Define if <sys/times.h> defines struct tms.]) | |
1468 | fi | |
1469 | ||
1470 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1471 | # revisit after autoconf 2.50. | |
1472 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
11e66330 | 1473 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1474 | #include "ansidecl.h" |
1475 | #include "system.h" | |
11e66330 | 1476 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c770a4cb | 1477 | if test $gcc_cv_type_clock_t = yes; then |
1478 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1479 | [Define if <time.h> defines clock_t.]) | |
1480 | fi | |
1481 | ||
3d2ab4bc | 1482 | # Check if F_SETLKW is supported by fcntl. |
1483 | AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [ | |
1484 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1485 | #include <fcntl.h>]], [[ | |
1486 | struct flock fl; | |
1487 | fl.l_whence = 0; | |
1488 | fl.l_start = 0; | |
1489 | fl.l_len = 0; | |
1490 | fl.l_pid = 0; | |
1491 | return fcntl (1, F_SETLKW, &fl);]])], | |
1492 | [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])]) | |
1493 | if test $ac_cv_f_setlkw = yes; then | |
1494 | AC_DEFINE(HOST_HAS_F_SETLKW, 1, | |
1495 | [Define if F_SETLKW supported by fcntl.]) | |
1496 | fi | |
1497 | ||
f4245e06 | 1498 | # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
3c014a93 | 1499 | CFLAGS="$saved_CFLAGS" |
f4245e06 | 1500 | CXXFLAGS="$saved_CXXFLAGS" |
3c014a93 | 1501 | |
a729d1c3 | 1502 | # mkdir takes a single argument on some systems. |
f9708620 | 1503 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
a729d1c3 | 1504 | |
01dc27ef | 1505 | # File extensions |
1506 | manext='.1' | |
1507 | objext='.o' | |
01dc27ef | 1508 | AC_SUBST(manext) |
1509 | AC_SUBST(objext) | |
01dc27ef | 1510 | |
805e22b2 | 1511 | # With Setjmp/Longjmp based exception handling. |
1512 | AC_ARG_ENABLE(sjlj-exceptions, | |
bc6c87c1 | 1513 | [AS_HELP_STRING([--enable-sjlj-exceptions], |
1514 | [arrange to use setjmp/longjmp exception handling])], | |
d4f869a6 | 1515 | [case $target in |
1516 | *-*-hpux10*) | |
1517 | if test $enableval != yes; then | |
1518 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1519 | enableval=yes | |
1520 | fi | |
1521 | ;; | |
1522 | esac | |
1523 | force_sjlj_exceptions=yes], | |
1524 | [case $target in | |
1525 | *-*-hpux10*) | |
1526 | force_sjlj_exceptions=yes | |
1527 | enableval=yes | |
1528 | ;; | |
369d6f24 | 1529 | lm32*-*-*) |
1530 | force_sjlj_exceptions=yes | |
1531 | enableval=yes | |
1532 | ;; | |
d4f869a6 | 1533 | *) |
1534 | force_sjlj_exceptions=no | |
1535 | ;; | |
1536 | esac]) | |
1537 | if test $force_sjlj_exceptions = yes; then | |
1538 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1539 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1540 | [Define 0/1 to force the choice for exception handling model.]) | |
1541 | fi | |
805e22b2 | 1542 | |
7349ace9 | 1543 | # -------------------------------------------------------- |
1544 | # Build, host, and target specific configuration fragments | |
1545 | # -------------------------------------------------------- | |
1546 | ||
eab1a815 | 1547 | # Collect build-machine-specific information. |
056ccd8f | 1548 | . ${srcdir}/config.build || exit 1 |
eab1a815 | 1549 | |
973f8bf3 | 1550 | # Collect host-machine-specific information. |
056ccd8f | 1551 | . ${srcdir}/config.host || exit 1 |
973f8bf3 | 1552 | |
eb1bd38b | 1553 | target_gtfiles= |
973f8bf3 | 1554 | |
1555 | # Collect target-machine-specific information. | |
056ccd8f | 1556 | . ${srcdir}/config.gcc || exit 1 |
01dc27ef | 1557 | |
1558 | extra_objs="${host_extra_objs} ${extra_objs}" | |
69eb04f7 | 1559 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
01dc27ef | 1560 | |
1561 | # Default the target-machine variables that were not explicitly set. | |
bf3637a9 | 1562 | if test x"$tm_file" = x |
01dc27ef | 1563 | then tm_file=$cpu_type/$cpu_type.h; fi |
1564 | ||
2a8be21e | 1565 | if test x"$extra_headers" = x |
01dc27ef | 1566 | then extra_headers=; fi |
1567 | ||
bf3637a9 | 1568 | if test x$md_file = x |
0579e60e | 1569 | then md_file=$cpu_type/$cpu_type.md; fi |
01dc27ef | 1570 | |
bf3637a9 | 1571 | if test x$out_file = x |
01dc27ef | 1572 | then out_file=$cpu_type/$cpu_type.c; fi |
1573 | ||
bf3637a9 | 1574 | if test x"$tmake_file" = x |
01dc27ef | 1575 | then tmake_file=$cpu_type/t-$cpu_type |
1576 | fi | |
1577 | ||
35f51475 | 1578 | # Support --enable-initfini-array. |
1579 | if test x$enable_initfini_array != xno; then | |
1580 | tm_file="${tm_file} initfini-array.h" | |
1581 | fi | |
1582 | ||
27b15aee | 1583 | if test x"$dwarf2" = xyes |
b65d2e3c | 1584 | then tm_file="$tm_file tm-dwarf2.h" |
27b15aee | 1585 | fi |
1586 | ||
01dc27ef | 1587 | # Say what files are being used for the output code and MD file. |
83b8e55b | 1588 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
01dc27ef | 1589 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1590 | ||
83b8e55b | 1591 | # If any of the xm_file variables contain nonexistent files, warn |
e1688c3e | 1592 | # about them and drop them. |
1593 | ||
83b8e55b | 1594 | bx= |
1595 | for x in $build_xm_file; do | |
1596 | if test -f $srcdir/config/$x | |
1597 | then bx="$bx $x" | |
83b8e55b | 1598 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1599 | fi | |
1600 | done | |
1601 | build_xm_file="$bx" | |
1602 | ||
1603 | hx= | |
1604 | for x in $host_xm_file; do | |
1605 | if test -f $srcdir/config/$x | |
1606 | then hx="$hx $x" | |
83b8e55b | 1607 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1608 | fi | |
1609 | done | |
1610 | host_xm_file="$hx" | |
1611 | ||
1612 | tx= | |
1613 | for x in $xm_file; do | |
1614 | if test -f $srcdir/config/$x | |
1615 | then tx="$tx $x" | |
83b8e55b | 1616 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1617 | fi | |
1618 | done | |
1619 | xm_file="$tx" | |
1620 | ||
01dc27ef | 1621 | count=a |
1622 | for f in $tm_file; do | |
1623 | count=${count}x | |
1624 | done | |
bf3637a9 | 1625 | if test $count = ax; then |
01dc27ef | 1626 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1627 | else | |
1628 | echo "Using the following target machine macro files:" | |
1629 | for f in $tm_file; do | |
1630 | echo " $srcdir/config/$f" | |
1631 | done | |
1632 | fi | |
1633 | ||
3f28a032 | 1634 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1635 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1c8ad86a | 1636 | [Define to 1 if the 'long long' type is wider than 'long' but still |
3f28a032 | 1637 | efficiently supported by the host hardware.]) |
1638 | fi | |
1639 | ||
8ffcff2e | 1640 | gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi` |
1641 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.]) | |
1642 | ||
1643 | gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi` | |
1644 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.]) | |
1645 | ||
01dc27ef | 1646 | count=a |
1647 | for f in $host_xm_file; do | |
1648 | count=${count}x | |
1649 | done | |
83b8e55b | 1650 | if test $count = a; then |
1651 | : | |
1652 | elif test $count = ax; then | |
01dc27ef | 1653 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1654 | else | |
1655 | echo "Using the following host machine macro files:" | |
1656 | for f in $host_xm_file; do | |
1657 | echo " $srcdir/config/$f" | |
1658 | done | |
1659 | fi | |
b197fbcf | 1660 | echo "Using ${out_host_hook_obj} for host machine hooks." |
01dc27ef | 1661 | |
bf3637a9 | 1662 | if test "$host_xm_file" != "$build_xm_file"; then |
01dc27ef | 1663 | count=a |
1664 | for f in $build_xm_file; do | |
1665 | count=${count}x | |
1666 | done | |
83b8e55b | 1667 | if test $count = a; then |
1668 | : | |
1669 | elif test $count = ax; then | |
01dc27ef | 1670 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1671 | else | |
1672 | echo "Using the following build machine macro files:" | |
1673 | for f in $build_xm_file; do | |
1674 | echo " $srcdir/config/$f" | |
1675 | done | |
1676 | fi | |
1677 | fi | |
1678 | ||
638454a1 | 1679 | if test -n "$configured_native_system_header_dir"; then |
1680 | native_system_header_dir=$configured_native_system_header_dir | |
1681 | fi | |
1682 | NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir" | |
1683 | AC_SUBST(NATIVE_SYSTEM_HEADER_DIR) | |
1684 | ||
168c58e0 | 1685 | case ${host} in |
84eba009 | 1686 | powerpc*-*-darwin*) |
168c58e0 | 1687 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1688 | gcc_cv_mcontext_underscores, | |
f00f02a3 | 1689 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
267a6571 | 1690 | #include <sys/cdefs.h> |
679f19b4 | 1691 | #include <sys/signal.h> |
168c58e0 | 1692 | #include <ucontext.h> |
1693 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
f00f02a3 | 1694 | ])], |
168c58e0 | 1695 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) |
1696 | if test $gcc_cv_mcontext_underscores = yes; then | |
1697 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1698 | [mcontext_t fields start with __]) | |
1699 | fi | |
1700 | ;; | |
1701 | esac | |
1702 | ||
d976f534 | 1703 | # --------- |
1704 | # Threading | |
1705 | # --------- | |
1706 | ||
267d993c | 1707 | # Check if a valid thread package |
334c8279 | 1708 | case ${enable_threads} in |
267d993c | 1709 | "" | no) |
1710 | # No threads | |
1711 | target_thread_file='single' | |
1712 | ;; | |
1713 | yes) | |
1714 | # default | |
1715 | target_thread_file='single' | |
1716 | ;; | |
fe5ef4a0 | 1717 | aix | dce | lynx | mipssde | posix | rtems | \ |
3f25492e | 1718 | single | tpf | vxworks | win32) |
334c8279 | 1719 | target_thread_file=${enable_threads} |
267d993c | 1720 | ;; |
1721 | *) | |
334c8279 | 1722 | echo "${enable_threads} is an unknown thread package" 1>&2 |
267d993c | 1723 | exit 1 |
1724 | ;; | |
1725 | esac | |
1726 | ||
1727 | if test x${thread_file} = x; then | |
1728 | # No thread file set by target-specific clauses in config.gcc, | |
1729 | # so use file chosen by default logic above | |
1730 | thread_file=${target_thread_file} | |
01dc27ef | 1731 | fi |
01dc27ef | 1732 | |
d976f534 | 1733 | # -------- |
1734 | # UNSORTED | |
1735 | # -------- | |
1736 | ||
d9ab9cb9 | 1737 | use_cxa_atexit=no |
bc5ae993 | 1738 | if test x$enable___cxa_atexit = xyes || \ |
1739 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
d9ab9cb9 | 1740 | if test x$host = x$target; then |
d91ef9b0 | 1741 | case $host in |
1742 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1743 | # keyed to flag_use_cxa_atexit | |
1744 | *-*-mingw32*) | |
1745 | use_cxa_atexit=yes | |
1746 | ;; | |
a8af2dd5 | 1747 | powerpc-ibm-aix*) |
1748 | use_cxa_atexit=yes | |
1749 | ;; | |
d91ef9b0 | 1750 | *) |
1751 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1752 | [echo "__cxa_atexit can't be enabled on this target"]) | |
55a5bb1e | 1753 | ;; |
d91ef9b0 | 1754 | esac |
d9ab9cb9 | 1755 | else |
1756 | # We can't check for __cxa_atexit when building a cross, so assume | |
1757 | # it is available | |
1758 | use_cxa_atexit=yes | |
1759 | fi | |
1760 | if test x$use_cxa_atexit = xyes; then | |
3bf418bd | 1761 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
d9ab9cb9 | 1762 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1763 | register C++ destructors for local statics and global objects. | |
1764 | This is essential for fully standards-compliant handling of | |
1765 | destructors, but requires __cxa_atexit in libc.]) | |
1766 | fi | |
bc5ae993 | 1767 | fi |
1768 | ||
6f432b58 | 1769 | # Look for a file containing extra machine modes. |
b5ccaa7b | 1770 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1771 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
6f432b58 | 1772 | AC_SUBST(extra_modes_file) |
4dcab8b7 | 1773 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
6f432b58 | 1774 | [Define to the name of a file containing a list of extra machine modes |
1775 | for this architecture.]) | |
6f432b58 | 1776 | fi |
1777 | ||
ff05e09e | 1778 | # Convert extra_options into a form suitable for Makefile use. |
1779 | extra_opt_files= | |
755fa783 | 1780 | all_opt_files= |
ff05e09e | 1781 | for f in $extra_options; do |
1782 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
755fa783 | 1783 | all_opt_files="$all_opt_files $srcdir/config/$f" |
ff05e09e | 1784 | done |
1785 | AC_SUBST(extra_opt_files) | |
1786 | ||
764fc592 | 1787 | # auto-host.h is the file containing items generated by autoconf and is |
0dbd1c74 | 1788 | # the first file included by config.h. |
805e22b2 | 1789 | # If host=build, it is correct to have bconfig include auto-host.h |
58b16c1a | 1790 | # as well. If host!=build, we are in error and need to do more |
1791 | # work to find out the build config parameters. | |
bf3637a9 | 1792 | if test x$host = x$build |
58b16c1a | 1793 | then |
d826737c | 1794 | build_auto=auto-host.h |
764fc592 | 1795 | else |
1796 | # We create a subdir, then run autoconf in the subdir. | |
1797 | # To prevent recursion we set host and build for the new | |
1798 | # invocation of configure to the build for this invocation | |
1799 | # of configure. | |
1800 | tempdir=build.$$ | |
1801 | rm -rf $tempdir | |
1802 | mkdir $tempdir | |
1803 | cd $tempdir | |
1804 | case ${srcdir} in | |
e868f582 | 1805 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
764fc592 | 1806 | *) realsrcdir=../${srcdir};; |
1807 | esac | |
18350b2e | 1808 | # Clearing GMPINC is necessary to prevent host headers being |
1809 | # used by the build compiler. Defining GENERATOR_FILE stops | |
1810 | # system.h from including gmp.h. | |
fc5104b7 | 1811 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ |
18350b2e | 1812 | CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \ |
1813 | LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
1814 | GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \ | |
fc5104b7 | 1815 | ${realsrcdir}/configure \ |
1f3fcf32 | 1816 | --enable-languages=${enable_languages-all} \ |
ab3470ec | 1817 | --target=$target_alias --host=$build_alias --build=$build_alias |
764fc592 | 1818 | |
1819 | # We just finished tests for the build machine, so rename | |
1820 | # the file auto-build.h in the gcc directory. | |
1821 | mv auto-host.h ../auto-build.h | |
1822 | cd .. | |
1823 | rm -rf $tempdir | |
d826737c | 1824 | build_auto=auto-build.h |
58b16c1a | 1825 | fi |
2b59cb05 | 1826 | AC_SUBST(build_subdir) |
58b16c1a | 1827 | |
d826737c | 1828 | tm_file="${tm_file} defaults.h" |
805e22b2 | 1829 | tm_p_file="${tm_p_file} tm-preds.h" |
03385ed3 | 1830 | tm_d_file="${tm_d_file} defaults.h" |
805e22b2 | 1831 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" |
1832 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
4b0e3ddb | 1833 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
18320123 | 1834 | # put this back in temporarily. |
fcd42b1e | 1835 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
4a7d7a8b | 1836 | |
7349ace9 | 1837 | # -------- |
1838 | # UNSORTED | |
1839 | # -------- | |
1840 | ||
14ac9144 | 1841 | changequote(,)dnl |
9371935c | 1842 | # Compile in configure arguments. |
6e11eb2c | 1843 | if test -f configargs.h ; then |
9371935c | 1844 | # Being re-configured. |
8bffa377 | 1845 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
f48b6632 | 1846 | gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'` |
1847 | if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then | |
1848 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1849 | fi | |
9371935c | 1850 | else |
1851 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1852 | fi | |
5df533c9 | 1853 | |
1854 | # Double all backslashes and backslash all quotes to turn | |
1855 | # gcc_config_arguments into a C string. | |
1856 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1857 | $gcc_config_arguments | |
1858 | EOF | |
1859 | gcc_config_arguments_str=`cat conftest.out` | |
1860 | rm -f conftest.out | |
1861 | ||
9371935c | 1862 | cat > configargs.h <<EOF |
1863 | /* Generated automatically. */ | |
5df533c9 | 1864 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
6d72c630 | 1865 | static const char thread_model[] = "$thread_file"; |
7dd97ab6 | 1866 | |
1867 | static const struct { | |
1868 | const char *name, *value; | |
1869 | } configure_default_options[] = $configure_default_options; | |
9371935c | 1870 | EOF |
bf3637a9 | 1871 | changequote([,])dnl |
01dc27ef | 1872 | |
e8ad34e4 | 1873 | changequote(,)dnl |
6ac2286b | 1874 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1875 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1876 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
e8ad34e4 | 1877 | if test -f $srcdir/REVISION ; then |
6ac2286b | 1878 | gcc_REVISION=`cat $srcdir/REVISION` |
e8ad34e4 | 1879 | else |
1880 | gcc_REVISION="" | |
1881 | fi | |
1882 | cat > plugin-version.h <<EOF | |
1883 | #include "configargs.h" | |
1884 | ||
7fed55f3 | 1885 | #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'` |
1886 | #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'` | |
1887 | #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'` | |
1888 | #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR) | |
1889 | ||
e8ad34e4 | 1890 | static char basever[] = "$gcc_BASEVER"; |
1891 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1892 | static char devphase[] = "$gcc_DEVPHASE"; | |
1893 | static char revision[] = "$gcc_REVISION"; | |
1894 | ||
1895 | /* FIXME plugins: We should make the version information more precise. | |
1896 | One way to do is to add a checksum. */ | |
1897 | ||
1898 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1899 | devphase, revision, | |
1900 | configuration_arguments}; | |
1901 | EOF | |
1902 | changequote([,])dnl | |
1903 | ||
0812bb06 | 1904 | # Determine what GCC version number to use in filesystem paths. |
1905 | GCC_BASE_VER | |
1906 | ||
be2828ce | 1907 | # Internationalization |
c6976b58 | 1908 | ZW_GNU_GETTEXT_SISTER_DIR |
c5ab9ed2 | 1909 | |
c6976b58 | 1910 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1911 | # -liconv on the link line twice. | |
1912 | case "$LIBINTL" in *$LIBICONV*) | |
1913 | LIBICONV= ;; | |
1914 | esac | |
be2828ce | 1915 | |
197f58fa | 1916 | AC_ARG_ENABLE(secureplt, |
bc6c87c1 | 1917 | [AS_HELP_STRING([--enable-secureplt], |
1918 | [enable -msecure-plt by default for PowerPC])], | |
197f58fa | 1919 | [], []) |
1920 | ||
15296a7b | 1921 | AC_ARG_ENABLE(mingw-wildcard, |
1922 | [AS_HELP_STRING([--enable-mingw-wildcard], | |
1923 | [Set whether to expand wildcard on command-line. | |
1924 | Default to platform configuration])], | |
1925 | [],[enable_mingw_wildcard=platform]) | |
1926 | AS_IF([test x"$enable_mingw_wildcard" != xplatform ], | |
1927 | [AC_DEFINE_UNQUOTED(MINGW_DOWILDCARD, | |
1928 | $(test x"$enable_mingw_wildcard" = xno; echo $?), | |
1929 | [Value to set mingw's _dowildcard to.])]) | |
1930 | ||
ee018eb1 | 1931 | AC_ARG_ENABLE(large-address-aware, |
1932 | [AS_HELP_STRING([--enable-large-address-aware], | |
1933 | [Link mingw executables with --large-address-aware])]) | |
1934 | AS_IF([test x"$enable_large_address_aware" = xyes], | |
1935 | [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1, | |
1936 | [Define if we should link mingw executables with --large-address-aware])]) | |
1937 | ||
a2beb429 | 1938 | AC_ARG_ENABLE(leading-mingw64-underscores, |
1939 | AS_HELP_STRING([--enable-leading-mingw64-underscores], | |
bc6c87c1 | 1940 | [enable leading underscores on 64 bit mingw targets]), |
a2beb429 | 1941 | [],[]) |
1942 | AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ], | |
1943 | [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1, | |
1944 | [Define if we should use leading underscore on 64 bit mingw targets])]) | |
1945 | ||
144c3e90 | 1946 | AC_ARG_ENABLE(cld, |
bc6c87c1 | 1947 | [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [], |
144c3e90 | 1948 | [enable_cld=no]) |
1949 | ||
fc00a76a | 1950 | AC_ARG_ENABLE(frame-pointer, |
bc6c87c1 | 1951 | [AS_HELP_STRING([--enable-frame-pointer], |
fe9e2b07 | 1952 | [enable -fno-omit-frame-pointer by default for x86])], [], |
fc00a76a | 1953 | [ |
1954 | case $target_os in | |
0df8904a | 1955 | linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*) |
679a4995 | 1956 | # Enable -fomit-frame-pointer by default for these systems with DWARF2. |
fc00a76a | 1957 | enable_frame_pointer=no |
1958 | ;; | |
1959 | *) | |
1960 | enable_frame_pointer=yes | |
1961 | ;; | |
1962 | esac | |
1963 | ]) | |
1964 | ||
fe9e2b07 | 1965 | case $target in |
1966 | i[[34567]]86-*-* | x86_64-*-*) | |
1967 | if test "x$enable_cld" = xyes; then | |
1968 | tm_defines="${tm_defines} USE_IX86_CLD=1" | |
1969 | fi | |
1970 | if test "x$enable_frame_pointer" = xyes; then | |
1971 | tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1" | |
1972 | fi | |
1973 | ;; | |
1974 | esac | |
1975 | ||
778a2833 | 1976 | # Windows32 Registry support for specifying GCC installation paths. |
1977 | AC_ARG_ENABLE(win32-registry, | |
bc6c87c1 | 1978 | [AS_HELP_STRING([--disable-win32-registry], |
1979 | [disable lookup of installation paths in the | |
1980 | Registry on Windows hosts]) | |
1981 | AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)]) | |
1982 | AS_HELP_STRING([--enable-win32-registry=KEY], | |
1983 | [use KEY instead of GCC version as the last portion | |
1984 | of the registry key])],,) | |
1af67e62 | 1985 | |
45449d9f | 1986 | case $host_os in |
297677bc | 1987 | win32 | pe | cygwin* | mingw32*) |
1af67e62 | 1988 | if test "x$enable_win32_registry" != xno; then |
1989 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1990 | fi | |
778a2833 | 1991 | |
1af67e62 | 1992 | if test "x$enable_win32_registry" != xno; then |
1993 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1994 | [Define to 1 if installation paths should be looked up in the Windows | |
1995 | Registry. Ignored on non-Windows hosts.]) | |
1996 | ||
1997 | if test "x$enable_win32_registry" != xyes \ | |
1998 | && test "x$enable_win32_registry" != x; then | |
1999 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
2000 | [Define to be the last component of the Windows registry key under which | |
2001 | to look for installation paths. The full key used will be | |
2002 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
2003 | The default is the GCC version number.]) | |
2004 | fi | |
2005 | fi | |
778a2833 | 2006 | ;; |
2007 | esac | |
2008 | ||
cab2aaca | 2009 | # Get an absolute path to the GCC top-level source directory |
3354d061 | 2010 | holddir=`${PWDCMD-pwd}` |
cab2aaca | 2011 | cd $srcdir |
3354d061 | 2012 | topdir=`${PWDCMD-pwd}` |
cab2aaca | 2013 | cd $holddir |
2014 | ||
0045e563 | 2015 | # Conditionalize the makefile for this host machine. |
a455468e | 2016 | xmake_file= |
2e222ce5 | 2017 | for f in ${host_xmake_file} |
5a92ba2a | 2018 | do |
bf3637a9 | 2019 | if test -f ${srcdir}/config/$f |
5a92ba2a | 2020 | then |
a455468e | 2021 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
5a92ba2a | 2022 | fi |
2023 | done | |
01dc27ef | 2024 | |
0045e563 | 2025 | # Conditionalize the makefile for this target machine. |
a455468e | 2026 | tmake_file_= |
2e222ce5 | 2027 | for f in ${tmake_file} |
5a92ba2a | 2028 | do |
bf3637a9 | 2029 | if test -f ${srcdir}/config/$f |
5a92ba2a | 2030 | then |
a455468e | 2031 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
5a92ba2a | 2032 | fi |
2033 | done | |
a455468e | 2034 | tmake_file="${tmake_file_}" |
4fc83d8e | 2035 | |
0045e563 | 2036 | out_object_file=`basename $out_file .c`.o |
3e87b980 | 2037 | common_out_object_file=`basename $common_out_file .c`.o |
4fc83d8e | 2038 | |
ff05e09e | 2039 | tm_file_list="options.h" |
a317e77e | 2040 | tm_include_list="options.h insn-constants.h" |
0045e563 | 2041 | for f in $tm_file; do |
de5102fe | 2042 | case $f in |
504cf784 | 2043 | ./* ) |
2044 | f=`echo $f | sed 's/^..//'` | |
2045 | tm_file_list="${tm_file_list} $f" | |
2046 | tm_include_list="${tm_include_list} $f" | |
2047 | ;; | |
673b6e5a | 2048 | defaults.h ) |
4dcab8b7 | 2049 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
2050 | tm_include_list="${tm_include_list} $f" | |
2051 | ;; | |
2052 | * ) | |
2053 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
2054 | tm_include_list="${tm_include_list} config/$f" | |
2055 | ;; | |
de5102fe | 2056 | esac |
0045e563 | 2057 | done |
01dc27ef | 2058 | |
83b8e55b | 2059 | tm_p_file_list= |
4dcab8b7 | 2060 | tm_p_include_list= |
83b8e55b | 2061 | for f in $tm_p_file; do |
805e22b2 | 2062 | case $f in |
2063 | tm-preds.h ) | |
4dcab8b7 | 2064 | tm_p_file_list="${tm_p_file_list} $f" |
2065 | tm_p_include_list="${tm_p_include_list} $f" | |
2066 | ;; | |
2067 | * ) | |
2068 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
2069 | tm_p_include_list="${tm_p_include_list} config/$f" | |
2070 | esac | |
2071 | done | |
2072 | ||
03385ed3 | 2073 | tm_d_file_list= |
2074 | tm_d_include_list="options.h insn-constants.h" | |
2075 | for f in $tm_d_file; do | |
2076 | case $f in | |
2077 | defaults.h ) | |
2078 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f" | |
2079 | tm_d_include_list="${tm_d_include_list} $f" | |
2080 | ;; | |
2081 | * ) | |
2082 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f" | |
2083 | tm_d_include_list="${tm_d_include_list} config/$f" | |
2084 | ;; | |
2085 | esac | |
2086 | done | |
2087 | ||
4dcab8b7 | 2088 | xm_file_list= |
2089 | xm_include_list= | |
2090 | for f in $xm_file; do | |
2091 | case $f in | |
2092 | ansidecl.h ) | |
2093 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
2094 | xm_include_list="${xm_include_list} $f" | |
2095 | ;; | |
2096 | auto-host.h ) | |
2097 | xm_file_list="${xm_file_list} $f" | |
2098 | xm_include_list="${xm_include_list} $f" | |
2099 | ;; | |
2100 | * ) | |
2101 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
2102 | xm_include_list="${xm_include_list} config/$f" | |
2103 | ;; | |
805e22b2 | 2104 | esac |
83b8e55b | 2105 | done |
2106 | ||
0045e563 | 2107 | host_xm_file_list= |
4dcab8b7 | 2108 | host_xm_include_list= |
0045e563 | 2109 | for f in $host_xm_file; do |
de5102fe | 2110 | case $f in |
673b6e5a | 2111 | ansidecl.h ) |
4dcab8b7 | 2112 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
2113 | host_xm_include_list="${host_xm_include_list} $f" | |
2114 | ;; | |
1f3233d1 | 2115 | auto-host.h ) |
4dcab8b7 | 2116 | host_xm_file_list="${host_xm_file_list} $f" |
2117 | host_xm_include_list="${host_xm_include_list} $f" | |
2118 | ;; | |
2119 | * ) | |
2120 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
2121 | host_xm_include_list="${host_xm_include_list} config/$f" | |
2122 | ;; | |
de5102fe | 2123 | esac |
0045e563 | 2124 | done |
2125 | ||
2126 | build_xm_file_list= | |
2127 | for f in $build_xm_file; do | |
de5102fe | 2128 | case $f in |
673b6e5a | 2129 | ansidecl.h ) |
4dcab8b7 | 2130 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
2131 | build_xm_include_list="${build_xm_include_list} $f" | |
2132 | ;; | |
1f3233d1 | 2133 | auto-build.h | auto-host.h ) |
4dcab8b7 | 2134 | build_xm_file_list="${build_xm_file_list} $f" |
2135 | build_xm_include_list="${build_xm_include_list} $f" | |
2136 | ;; | |
2137 | * ) | |
2138 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
2139 | build_xm_include_list="${build_xm_include_list} config/$f" | |
2140 | ;; | |
de5102fe | 2141 | esac |
0045e563 | 2142 | done |
01dc27ef | 2143 | |
29d774d0 | 2144 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
2145 | # cross-compiler which does not use the native headers and libraries. | |
0fc07c25 | 2146 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
2147 | CROSS= AC_SUBST(CROSS) | |
2148 | ALL=all.internal AC_SUBST(ALL) | |
2149 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
1f87fb84 | 2150 | BUILD_SYSTEM_HEADER_DIR=$SYSTEM_HEADER_DIR AC_SUBST(BUILD_SYSTEM_HEADER_DIR) |
5e368ffe | 2151 | |
1f87fb84 | 2152 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x || |
2153 | test x$build != x$host || test "x$with_build_sysroot" != x; then | |
2154 | if test "x$with_build_sysroot" != x; then | |
2155 | BUILD_SYSTEM_HEADER_DIR=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
2156 | else | |
2157 | BUILD_SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2158 | fi | |
5e368ffe | 2159 | |
1f87fb84 | 2160 | if test x$host != x$target |
2161 | then | |
2162 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
2163 | ALL=all.cross | |
2164 | SYSTEM_HEADER_DIR=$BUILD_SYSTEM_HEADER_DIR | |
2165 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
2166 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2167 | fi | |
01dc27ef | 2168 | |
1f87fb84 | 2169 | if test "x$with_build_sysroot" != "x"; then |
2170 | target_header_dir="${with_build_sysroot}${native_system_header_dir}" | |
185f440d | 2171 | elif test "x$with_sysroot" = x; then |
2172 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include" | |
185f440d | 2173 | elif test "x$with_sysroot" = xyes; then |
2174 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}" | |
2175 | else | |
2176 | target_header_dir="${with_sysroot}${native_system_header_dir}" | |
2177 | fi | |
2178 | else | |
2179 | target_header_dir=${native_system_header_dir} | |
2180 | fi | |
2181 | ||
81aabcf8 | 2182 | # If this is a cross-compiler that does not |
2183 | # have its own set of headers then define | |
2184 | # inhibit_libc | |
2185 | ||
3caddd4e | 2186 | # If this is using newlib, without having the headers available now, |
2187 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
c872ef71 | 2188 | # This prevents libgcc2 from containing any code which requires libc |
2189 | # support. | |
58a8c75f | 2190 | : ${inhibit_libc=false} |
3caddd4e | 2191 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
2192 | test x$with_newlib = xyes ; } && | |
185f440d | 2193 | { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then |
a99be165 | 2194 | inhibit_libc=true |
81aabcf8 | 2195 | fi |
2196 | AC_SUBST(inhibit_libc) | |
2197 | ||
0fc07c25 | 2198 | # When building gcc with a cross-compiler, we need to adjust things so |
2199 | # that the generator programs are still built with the native compiler. | |
f2397fc4 | 2200 | # Also, we cannot run fixincludes. |
0fc07c25 | 2201 | |
2202 | # These are the normal (build=host) settings: | |
58933515 | 2203 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
a44c8c3b | 2204 | CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) |
805e22b2 | 2205 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
a44c8c3b | 2206 | BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) |
9841cd80 | 2207 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
0fc07c25 | 2208 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
4c05f6ec | 2209 | |
571e5fe1 | 2210 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS) |
2211 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG) | |
2212 | ||
c19ee476 | 2213 | # And these apply if build != host, or we are generating coverage data |
2214 | if test x$build != x$host || test "x$coverage_flags" != x | |
0045e563 | 2215 | then |
4a867005 | 2216 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
32ba5f0b | 2217 | BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)' |
9841cd80 | 2218 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
571e5fe1 | 2219 | |
2220 | NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}} | |
2221 | NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}} | |
2222 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)' | |
2223 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)' | |
0045e563 | 2224 | fi |
571e5fe1 | 2225 | AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD) |
2226 | AC_SUBST(NO_PIE_FLAG_FOR_BUILD) | |
01dc27ef | 2227 | |
33fd845b | 2228 | # Expand extra_headers to include complete path. |
2229 | # This substitutes for lots of t-* files. | |
2230 | extra_headers_list= | |
a78cd2c1 | 2231 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
2232 | for file in ${extra_headers} ; do | |
2233 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
2234 | done | |
33fd845b | 2235 | |
50388ca3 | 2236 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
2237 | if test x"$use_gcc_tgmath" = xyes | |
2238 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
2239 | fi | |
2240 | ||
e08c7853 | 2241 | # Define collect2 in Makefile. |
2242 | case $host_can_use_collect2 in | |
2243 | no) collect2= ;; | |
2244 | *) collect2='collect2$(exeext)' ;; | |
2245 | esac | |
2246 | AC_SUBST([collect2]) | |
2247 | ||
0045e563 | 2248 | # Add a definition of USE_COLLECT2 if system wants one. |
7349ace9 | 2249 | case $use_collect2 in |
2250 | no) use_collect2= ;; | |
2251 | "") ;; | |
2252 | *) | |
2253 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
2254 | xm_defines="${xm_defines} USE_COLLECT2" | |
e08c7853 | 2255 | case $host_can_use_collect2 in |
2256 | no) | |
2257 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
2258 | ;; | |
2259 | esac | |
7349ace9 | 2260 | ;; |
2261 | esac | |
0045e563 | 2262 | |
ca42e774 | 2263 | AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", |
2264 | [Define to the name of the LTO plugin DSO that must be | |
2265 | passed to the linker's -plugin=LIB option.]) | |
2266 | ||
d8a2ca58 | 2267 | # --------------------------- |
2268 | # Assembler & linker features | |
2269 | # --------------------------- | |
2270 | ||
794723c1 | 2271 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
2272 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
2273 | # However when ld-new is first executed from the build tree, libtool will | |
2274 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
2275 | # to the build tree. While doing this we need to use the previous-stage | |
2276 | # linker, or we have an infinite loop. The presence of a shell script as | |
2277 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
2278 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
2279 | # exec-tool will fail. | |
2280 | ||
2281 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
2282 | AC_PROG_LIBTOOL | |
2283 | AC_SUBST(objdir) | |
2284 | AC_SUBST(enable_fast_install) | |
2285 | ||
d2aaa43f | 2286 | # Identify the assembler which will work hand-in-glove with the newly |
2287 | # built GCC, so that we can examine its features. This is the assembler | |
2288 | # which will be driven by the driver program. | |
2289 | # | |
2290 | # If build != host, and we aren't building gas in-tree, we identify a | |
2291 | # build->target assembler and hope that it will have the same features | |
2292 | # as the host->target assembler we'll be using. | |
398f3874 | 2293 | gcc_cv_gas_major_version= |
2294 | gcc_cv_gas_minor_version= | |
0a4f4d70 | 2295 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
c47832b1 | 2296 | |
2297 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
2298 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
f8b7dbdb | 2299 | if test -x "$DEFAULT_ASSEMBLER"; then |
2300 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
e757a6a8 | 2301 | elif test -f $gcc_cv_as_gas_srcdir/configure.ac \ |
58220290 | 2302 | && test -f ../gas/Makefile \ |
2303 | && test x$build = x$host; then | |
c47832b1 | 2304 | gcc_cv_as=../gas/as-new$build_exeext |
2305 | elif test -x as$build_exeext; then | |
2306 | # Build using assembler in the current directory. | |
2307 | gcc_cv_as=./as$build_exeext | |
f3599371 | 2308 | elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2309 | gcc_cv_as="$AS_FOR_TARGET" |
2310 | else | |
2311 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
2312 | fi]) | |
2313 | ||
2314 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
2315 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
bdbe7091 | 2316 | case "$ORIGINAL_AS_FOR_TARGET" in |
2317 | ./as | ./as$build_exeext) ;; | |
2318 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
2319 | esac | |
c47832b1 | 2320 | |
2321 | AC_MSG_CHECKING(what assembler to use) | |
2322 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
58220290 | 2323 | # Single tree build which includes gas. We want to prefer it |
2324 | # over whatever linker top-level may have detected, since | |
2325 | # we'll use what we're building after installation anyway. | |
c47832b1 | 2326 | AC_MSG_RESULT(newly built gas) |
667fe30b | 2327 | in_tree_gas=yes |
2328 | _gcc_COMPUTE_GAS_VERSION | |
0dac358a | 2329 | in_tree_gas_is_elf=no |
2330 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
2331 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
2332 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
2333 | then | |
2334 | in_tree_gas_is_elf=yes | |
2335 | fi | |
c47832b1 | 2336 | else |
2337 | AC_MSG_RESULT($gcc_cv_as) | |
2338 | in_tree_gas=no | |
398f3874 | 2339 | fi |
2340 | ||
9b4ea463 | 2341 | default_ld= |
2342 | AC_ARG_ENABLE(ld, | |
2343 | [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], | |
2344 | [case "${enableval}" in | |
2345 | no) | |
2346 | default_ld=ld.gold | |
2347 | ;; | |
2348 | esac]) | |
2349 | ||
560d6bb9 | 2350 | install_gold_as_default=no |
9b4ea463 | 2351 | AC_ARG_ENABLE(gold, |
2352 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], | |
2353 | [case "${enableval}" in | |
2354 | default) | |
2355 | install_gold_as_default=yes | |
2356 | ;; | |
2357 | yes) | |
2358 | if test x${default_ld} != x; then | |
2359 | install_gold_as_default=yes | |
2360 | fi | |
2361 | ;; | |
2362 | no) | |
2363 | ;; | |
2364 | *) | |
2365 | AC_MSG_ERROR([invalid --enable-gold argument]) | |
2366 | ;; | |
560d6bb9 | 2367 | esac]) |
9b4ea463 | 2368 | |
d2aaa43f | 2369 | # Identify the linker which will work hand-in-glove with the newly |
2370 | # built GCC, so that we can examine its features. This is the linker | |
2371 | # which will be driven by the driver program. | |
2372 | # | |
2373 | # If build != host, and we aren't building gas in-tree, we identify a | |
2374 | # build->target linker and hope that it will have the same features | |
2375 | # as the host->target linker we'll be using. | |
0d6378a9 | 2376 | gcc_cv_gld_major_version= |
2377 | gcc_cv_gld_minor_version= | |
2378 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
9b4ea463 | 2379 | gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold |
0d6378a9 | 2380 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd |
c47832b1 | 2381 | |
2382 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
0d6378a9 | 2383 | if test -x "$DEFAULT_LINKER"; then |
2384 | gcc_cv_ld="$DEFAULT_LINKER" | |
9b4ea463 | 2385 | elif test $install_gold_as_default = yes \ |
2386 | && test -f $gcc_cv_ld_gold_srcdir/configure.ac \ | |
2387 | && test -f ../gold/Makefile \ | |
2388 | && test x$build = x$host; then | |
2389 | gcc_cv_ld=../gold/ld-new$build_exeext | |
e757a6a8 | 2390 | elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \ |
58220290 | 2391 | && test -f ../ld/Makefile \ |
2392 | && test x$build = x$host; then | |
c47832b1 | 2393 | gcc_cv_ld=../ld/ld-new$build_exeext |
2394 | elif test -x collect-ld$build_exeext; then | |
2395 | # Build using linker in the current directory. | |
2396 | gcc_cv_ld=./collect-ld$build_exeext | |
f3599371 | 2397 | elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2398 | gcc_cv_ld="$LD_FOR_TARGET" |
2399 | else | |
2400 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
2401 | fi]) | |
2402 | ||
a93e9832 | 2403 | ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld |
61f41b94 | 2404 | PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"` |
eadecd28 | 2405 | # if the PLUGIN_LD is set ld-new, just have it as ld |
2406 | # as that is the installed named. | |
71f006b8 | 2407 | if test x$PLUGIN_LD_SUFFIX = xld-new \ |
2408 | || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then | |
eadecd28 | 2409 | PLUGIN_LD_SUFFIX=ld |
2410 | fi | |
a93e9832 | 2411 | AC_ARG_WITH(plugin-ld, |
bc6c87c1 | 2412 | [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])], |
a93e9832 | 2413 | [if test x"$withval" != x; then |
2414 | ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" | |
8afc0d84 | 2415 | PLUGIN_LD_SUFFIX="$withval" |
a93e9832 | 2416 | fi]) |
2417 | AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) | |
61f41b94 | 2418 | AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker]) |
a93e9832 | 2419 | |
c2ce8e07 | 2420 | # Check to see if we are using gold instead of ld |
2421 | AC_MSG_CHECKING(whether we are using gold) | |
2422 | ld_is_gold=no | |
2423 | if test x$gcc_cv_ld != x; then | |
2424 | if $gcc_cv_ld --version 2>/dev/null | sed 1q \ | |
2425 | | grep "GNU gold" > /dev/null; then | |
2426 | ld_is_gold=yes | |
2427 | fi | |
2428 | fi | |
2429 | AC_MSG_RESULT($ld_is_gold) | |
2430 | ||
e97f880e | 2431 | AC_MSG_CHECKING(gold linker with split stack support as non default) |
2432 | # Check to see if default ld is not gold, but gold is | |
2433 | # available and has support for split stack. If gcc was configured | |
2434 | # with gold then no checking is done. | |
2435 | # | |
2436 | if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then | |
2437 | ||
2438 | # For platforms other than powerpc64*, enable as appropriate. | |
2439 | ||
2440 | gold_non_default=no | |
2441 | ld_gold=`which ${gcc_cv_ld}.gold` | |
2442 | # Make sure this gold has minimal split stack support | |
2443 | if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
2444 | ld_vers=`$ld_gold --version | sed 1q` | |
2445 | gold_vers=`echo $ld_vers | sed -n \ | |
2446 | -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'` | |
2447 | case $target in | |
2448 | # check that the gold version contains the complete split stack support | |
2449 | # on powerpc64 big and little endian | |
2450 | powerpc64*-*-*) | |
2451 | case "$gold_vers" in | |
2452 | 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes | |
2453 | ;; | |
2454 | *) gold_non_default=no | |
2455 | ;; | |
2456 | esac | |
2457 | ;; | |
2458 | esac | |
2459 | fi | |
2460 | if test $gold_non_default = yes; then | |
2461 | AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1, | |
2462 | [Define if the gold linker supports split stack and is available as a non-default]) | |
2463 | fi | |
2464 | fi | |
2465 | AC_MSG_RESULT($gold_non_default) | |
2466 | ||
c47832b1 | 2467 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld |
2468 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
bdbe7091 | 2469 | case "$ORIGINAL_LD_FOR_TARGET" in |
2470 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
2471 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
2472 | esac | |
c47832b1 | 2473 | |
2474 | AC_MSG_CHECKING(what linker to use) | |
c5f741b3 | 2475 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \ |
2476 | || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then | |
58220290 | 2477 | # Single tree build which includes ld. We want to prefer it |
2478 | # over whatever linker top-level may have detected, since | |
2479 | # we'll use what we're building after installation anyway. | |
c47832b1 | 2480 | AC_MSG_RESULT(newly built ld) |
7349ace9 | 2481 | in_tree_ld=yes |
0dac358a | 2482 | in_tree_ld_is_elf=no |
2483 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
092f763e | 2484 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
2485 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
0dac358a | 2486 | in_tree_ld_is_elf=yes |
c5f741b3 | 2487 | elif test "$ld_is_gold" = yes; then |
2488 | in_tree_ld_is_elf=yes | |
0dac358a | 2489 | fi |
e757a6a8 | 2490 | 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 |
0d6378a9 | 2491 | do |
2492 | changequote(,)dnl | |
06c2a8a3 | 2493 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f` |
0d6378a9 | 2494 | if test x$gcc_cv_gld_version != x; then |
2495 | break | |
2496 | fi | |
2497 | done | |
06c2a8a3 | 2498 | case $gcc_cv_gld_version in |
2499 | VERSION=[0-9]*) ;; | |
2500 | changequote([,])dnl | |
2501 | *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;; | |
2502 | changequote(,)dnl | |
2503 | esac | |
0d6378a9 | 2504 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
2505 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
2506 | changequote([,])dnl | |
9b4ea463 | 2507 | ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext |
2508 | ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext | |
c47832b1 | 2509 | else |
2510 | AC_MSG_RESULT($gcc_cv_ld) | |
2511 | in_tree_ld=no | |
9b4ea463 | 2512 | gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext` |
2513 | ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext | |
2514 | ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext | |
0d6378a9 | 2515 | fi |
2516 | ||
9b4ea463 | 2517 | AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET) |
2518 | AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET) | |
2519 | ||
398f3874 | 2520 | # Figure out what nm we will be using. |
37c5bbf8 | 2521 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
c47832b1 | 2522 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
e757a6a8 | 2523 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
13648950 | 2524 | && test -f ../binutils/Makefile \ |
2525 | && test x$build = x$host; then | |
f32e3360 | 2526 | gcc_cv_nm=../binutils/nm-new$build_exeext |
2527 | elif test -x nm$build_exeext; then | |
68c3d71c | 2528 | gcc_cv_nm=./nm$build_exeext |
f3599371 | 2529 | elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2530 | gcc_cv_nm="$NM_FOR_TARGET" |
2531 | else | |
2532 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
2533 | fi]) | |
f32e3360 | 2534 | |
f32e3360 | 2535 | AC_MSG_CHECKING(what nm to use) |
c47832b1 | 2536 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
2537 | # Single tree build which includes binutils. | |
2538 | AC_MSG_RESULT(newly built nm) | |
2539 | in_tree_nm=yes | |
2540 | else | |
2541 | AC_MSG_RESULT($gcc_cv_nm) | |
2542 | in_tree_nm=no | |
2543 | fi | |
2544 | ||
2545 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
2546 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
bdbe7091 | 2547 | case "$ORIGINAL_NM_FOR_TARGET" in |
2548 | ./nm | ./nm$build_exeext) ;; | |
2549 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
2550 | esac | |
2551 | ||
398f3874 | 2552 | |
74e387fc | 2553 | # Figure out what objdump we will be using. |
c47832b1 | 2554 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
e757a6a8 | 2555 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
13648950 | 2556 | && test -f ../binutils/Makefile \ |
2557 | && test x$build = x$host; then | |
37c5bbf8 | 2558 | # Single tree build which includes binutils. |
f32e3360 | 2559 | gcc_cv_objdump=../binutils/objdump$build_exeext |
ae74ffb7 | 2560 | elif test -x objdump$build_exeext; then |
2561 | gcc_cv_objdump=./objdump$build_exeext | |
f3599371 | 2562 | elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2563 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" |
2564 | else | |
2565 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2566 | fi]) | |
ae74ffb7 | 2567 | |
ae74ffb7 | 2568 | AC_MSG_CHECKING(what objdump to use) |
c47832b1 | 2569 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2570 | # Single tree build which includes binutils. | |
2571 | AC_MSG_RESULT(newly built objdump) | |
2572 | elif test x$gcc_cv_objdump = x; then | |
2573 | AC_MSG_RESULT(not found) | |
2574 | else | |
2575 | AC_MSG_RESULT($gcc_cv_objdump) | |
2576 | fi | |
74e387fc | 2577 | |
8eac5d17 | 2578 | # Figure out what readelf we will be using. |
2579 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
e757a6a8 | 2580 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
8eac5d17 | 2581 | && test -f ../binutils/Makefile \ |
2582 | && test x$build = x$host; then | |
2583 | # Single tree build which includes binutils. | |
2584 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2585 | elif test -x readelf$build_exeext; then | |
2586 | gcc_cv_readelf=./readelf$build_exeext | |
c5b80c25 | 2587 | elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then |
2588 | gcc_cv_readelf="$READELF_FOR_TARGET" | |
8eac5d17 | 2589 | else |
c5b80c25 | 2590 | AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET) |
8eac5d17 | 2591 | fi]) |
2592 | ||
2593 | AC_MSG_CHECKING(what readelf to use) | |
2594 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2595 | # Single tree build which includes binutils. | |
2596 | AC_MSG_RESULT(newly built readelf) | |
2597 | elif test x$gcc_cv_readelf = x; then | |
2598 | AC_MSG_RESULT(not found) | |
2599 | else | |
2600 | AC_MSG_RESULT($gcc_cv_readelf) | |
2601 | fi | |
2602 | ||
16706a2e | 2603 | # Figure out what otool we will be using. |
2604 | AS_VAR_SET_IF(gcc_cv_otool,, [ | |
2605 | if test -x otool$build_exeext; then | |
2606 | gcc_cv_otool=./otool$build_exeext | |
2607 | elif ( set dummy $OTOOL_FOR_TARGET; test -x $[2] ); then | |
2608 | gcc_cv_otool="$OTOOL_FOR_TARGET" | |
2609 | else | |
2610 | AC_PATH_PROG(gcc_cv_otool, $OTOOL_FOR_TARGET) | |
2611 | fi]) | |
2612 | ||
2613 | AC_MSG_CHECKING(what otool to use) | |
2614 | if test x$gcc_cv_otool = x; then | |
2615 | AC_MSG_RESULT(not found) | |
2616 | else | |
2617 | AC_MSG_RESULT($gcc_cv_otool) | |
2618 | fi | |
2619 | ||
398f3874 | 2620 | # Figure out what assembler alignment features are present. |
6d6c1801 | 2621 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2622 | [2,6,0],, | |
2623 | [.balign 4 | |
2624 | .p2align 2],, | |
2625 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2626 | [Define if your assembler supports .balign and .p2align.])]) | |
2627 | ||
2628 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2629 | [2,8,0],, | |
2630 | [.p2align 4,,7],, | |
2631 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2632 | [Define if your assembler supports specifying the maximum number | |
2633 | of bytes to skip when using the GAS .p2align command.])]) | |
2634 | ||
4be92808 | 2635 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2636 | [2,8,0],, | |
2637 | [.literal16],, | |
2638 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2639 | [Define if your assembler supports .literal16.])]) | |
2640 | ||
6d6c1801 | 2641 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2642 | [elf,2,9,0],, | |
2643 | [conftest_label1: .word 0 | |
b6d28b19 | 2644 | .subsection -1 |
2645 | conftest_label2: .word 0 | |
6d6c1801 | 2646 | .previous], |
2647 | [if test x$gcc_cv_nm != x; then | |
2648 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2649 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2650 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2651 | then : | |
2652 | else gcc_cv_as_subsection_m1=yes | |
2653 | fi | |
2654 | rm -f conftest.nm1 conftest.nm2 | |
2655 | fi], | |
2656 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2657 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2658 | emitting at the beginning of your section.])]) | |
2659 | ||
2660 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2661 | [2,2,0],, | |
2662 | [ .weak foobar],, | |
2663 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2664 | ||
f4a30bd7 | 2665 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2666 | [2,17,0],, | |
2667 | [ .weakref foobar, barfnot],, | |
2668 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2669 | ||
2455c36b | 2670 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2671 | [2,15,91],, | |
2672 | [ .SPACE $TEXT$ | |
2673 | .NSUBSPA $CODE$,COMDAT],, | |
2674 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2675 | ||
6d6c1801 | 2676 | # .hidden needs to be supported in both the assembler and the linker, |
2677 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2678 | # This is irritatingly difficult to feature test for; we have to check the | |
2679 | # date string after the version number. If we've got an in-tree | |
2680 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2681 | # to be safe. | |
2682 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
3b118414 | 2683 | case "${target}" in |
2684 | *-*-aix*) | |
2685 | conftest_s=' .globl foobar,hidden' | |
2686 | ;; | |
2687 | *) | |
2688 | conftest_s=' .hidden foobar | |
2689 | foobar:' | |
2690 | ;; | |
2691 | esac | |
6d6c1801 | 2692 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, |
3b118414 | 2693 | [elf,2,13,0],, [$conftest_s]) |
b9099475 | 2694 | case "${target}" in |
2695 | *-*-darwin*) | |
2696 | # Darwin as has some visibility support, though with a different syntax. | |
2697 | gcc_cv_as_hidden=yes | |
2698 | ;; | |
2699 | esac | |
6d6c1801 | 2700 | |
85c0a25c | 2701 | # gnu_indirect_function type is an extension proposed at |
2702 | # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime | |
2703 | # selection of function implementation | |
1c6e0788 | 2704 | AC_ARG_ENABLE(gnu-indirect-function, |
2705 | [AS_HELP_STRING([--enable-gnu-indirect-function], | |
2706 | [enable the use of the @gnu_indirect_function to glibc systems])], | |
2707 | [case $enable_gnu_indirect_function in | |
2708 | yes | no) ;; | |
2709 | *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function. | |
2710 | Valid choices are 'yes' and 'no'.]) ;; | |
2711 | esac], | |
2712 | [enable_gnu_indirect_function="$default_gnu_indirect_function"]) | |
df9f2e40 | 2713 | |
2714 | gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi` | |
2715 | AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif, | |
2716 | [Define if your system supports gnu indirect functions.]) | |
2717 | ||
85c0a25c | 2718 | |
02bc02b1 | 2719 | changequote(,)dnl |
2720 | if test $in_tree_ld != yes ; then | |
2721 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
c5f741b3 | 2722 | if echo "$ld_ver" | grep GNU > /dev/null; then |
2723 | if test x"$ld_is_gold" = xyes; then | |
2724 | # GNU gold --version looks like this: | |
2725 | # | |
2726 | # GNU gold (GNU Binutils 2.21.51.20110225) 1.11 | |
2727 | # | |
2728 | # We extract the binutils version which is more familiar and specific | |
2729 | # than the gold version. | |
2730 | ld_vers=`echo $ld_ver | sed -n \ | |
2731 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
2732 | else | |
2733 | # GNU ld --version looks like this: | |
2734 | # | |
2735 | # GNU ld (GNU Binutils) 2.21.51.20110225 | |
2736 | ld_vers=`echo $ld_ver | sed -n \ | |
2737 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2738 | fi | |
02bc02b1 | 2739 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
2740 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2741 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2742 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
dfbfdd90 | 2743 | else |
2744 | case "${target}" in | |
2745 | *-*-solaris2*) | |
e1c571cf | 2746 | # Solaris 2 ld -V output looks like this for a regular version: |
dfbfdd90 | 2747 | # |
e1c571cf | 2748 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 |
2749 | # | |
2750 | # but test versions add stuff at the end: | |
2751 | # | |
2752 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 | |
2753 | # | |
e1c571cf | 2754 | # ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version |
2755 | # numbers can be used in ld.so.1 feature checks even if a different | |
2756 | # linker is configured. | |
dfbfdd90 | 2757 | ld_ver=`$gcc_cv_ld -V 2>&1` |
015164b9 | 2758 | if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then |
dfbfdd90 | 2759 | ld_vers=`echo $ld_ver | sed -n \ |
015164b9 | 2760 | -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'` |
dfbfdd90 | 2761 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2762 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2763 | fi | |
2764 | ;; | |
2765 | esac | |
02bc02b1 | 2766 | fi |
2767 | fi | |
2768 | changequote([,])dnl | |
2769 | ||
6d6c1801 | 2770 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, |
a6b57da2 | 2771 | [[if test $in_tree_ld = yes ; then |
6d6c1801 | 2772 | gcc_cv_ld_hidden=no |
2773 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2774 | && test $in_tree_ld_is_elf = yes; then | |
2775 | gcc_cv_ld_hidden=yes | |
2776 | fi | |
2777 | else | |
2778 | gcc_cv_ld_hidden=yes | |
c5f741b3 | 2779 | if test x"$ld_is_gold" = xyes; then |
2780 | : | |
2781 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
1305227a | 2782 | case "${target}" in |
2783 | mmix-knuth-mmixware) | |
2784 | # The linker emits by default mmo, not ELF, so "no" is appropriate. | |
2785 | gcc_cv_ld_hidden=no | |
2786 | ;; | |
2787 | esac | |
6d6c1801 | 2788 | if test 0"$ld_date" -lt 20020404; then |
2789 | if test -n "$ld_date"; then | |
2790 | # If there was date string, but was earlier than 2002-04-04, fail | |
2791 | gcc_cv_ld_hidden=no | |
2792 | elif test -z "$ld_vers"; then | |
2793 | # If there was no date string nor ld version number, something is wrong | |
2794 | gcc_cv_ld_hidden=no | |
2795 | else | |
6d6c1801 | 2796 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2797 | if test "$ld_vers_major" -lt 2; then | |
2798 | gcc_cv_ld_hidden=no | |
2799 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2800 | gcc_cv_ld_hidden="no" | |
2801 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2802 | gcc_cv_ld_hidden=no | |
a985a485 | 2803 | fi |
6d6c1801 | 2804 | fi |
61ab9ea9 | 2805 | fi |
6d6c1801 | 2806 | else |
6f8f5d6c | 2807 | case "${target}" in |
3b118414 | 2808 | *-*-aix[789]*) |
2809 | gcc_cv_ld_hidden=yes | |
2810 | ;; | |
b9099475 | 2811 | *-*-darwin*) |
2812 | # Darwin ld has some visibility support. | |
2813 | gcc_cv_ld_hidden=yes | |
2814 | ;; | |
ecb7c90c | 2815 | hppa64*-*-hpux* | ia64*-*-hpux*) |
6f8f5d6c | 2816 | gcc_cv_ld_hidden=yes |
2817 | ;; | |
0fd03648 | 2818 | *-*-solaris2*) |
cbbd336d | 2819 | # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but |
2820 | # .symbolic was only added in Solaris 9 12/02. | |
8177d9d5 | 2821 | gcc_cv_ld_hidden=yes |
2822 | ;; | |
6f8f5d6c | 2823 | *) |
2824 | gcc_cv_ld_hidden=no | |
2825 | ;; | |
2826 | esac | |
6d6c1801 | 2827 | fi |
a6b57da2 | 2828 | fi]]) |
6d6c1801 | 2829 | libgcc_visibility=no |
e8c2499b | 2830 | AC_SUBST(libgcc_visibility) |
fcd42b1e | 2831 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0b4b4686 | 2832 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
6d6c1801 | 2833 | libgcc_visibility=yes |
2834 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2835 | [Define if your assembler and linker support .hidden.]) | |
2836 | fi | |
5be729c9 | 2837 | |
e94830ac | 2838 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2839 | gcc_cv_ld_ro_rw_mix=unknown | |
2840 | if test $in_tree_ld = yes ; then | |
2841 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2842 | && test $in_tree_ld_is_elf = yes; then | |
2843 | gcc_cv_ld_ro_rw_mix=read-write | |
2844 | fi | |
2845 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2846 | echo '.section myfoosect, "a"' > conftest1.s | |
2847 | echo '.section myfoosect, "aw"' > conftest2.s | |
2848 | echo '.byte 1' >> conftest2.s | |
2849 | echo '.section myfoosect, "a"' > conftest3.s | |
2850 | echo '.byte 0' >> conftest3.s | |
2851 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2852 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2853 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2854 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2855 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2856 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2857 | | sed -e '/myfoosect/!d' -e N` | |
2858 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2859 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2860 | gcc_cv_ld_ro_rw_mix=read-only | |
2861 | else | |
2862 | gcc_cv_ld_ro_rw_mix=read-write | |
2863 | fi | |
2864 | fi | |
2865 | fi | |
2866 | changequote(,)dnl | |
2867 | rm -f conftest.* conftest[123].* | |
2868 | changequote([,])dnl | |
2869 | fi | |
2870 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2871 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2872 | [Define if your linker links a mix of read-only | |
2873 | and read-write sections into a read-write section.]) | |
2874 | fi | |
2875 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2876 | ||
35f51475 | 2877 | gcc_AC_INITFINI_ARRAY |
2878 | ||
6d6c1801 | 2879 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2880 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2881 | [elf,2,11,0],, | |
2882 | [ .data | |
37a2e188 | 2883 | .uleb128 L2 - L1 |
2884 | L1: | |
2885 | .uleb128 1280 | |
2886 | .sleb128 -1010 | |
6d6c1801 | 2887 | L2:], |
a6b57da2 | 2888 | [[# GAS versions before 2.11 do not support uleb128, |
6d6c1801 | 2889 | # despite appearing to. |
2890 | # ??? There exists an elf-specific test that will crash | |
2891 | # the assembler. Perhaps it's better to figure out whether | |
2892 | # arbitrary sections are supported and try the test. | |
43557a8f | 2893 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
6d6c1801 | 2894 | if echo "$as_ver" | grep GNU > /dev/null; then |
b29dc614 | 2895 | as_vers=`echo $as_ver | sed -n \ |
c7871c82 | 2896 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
b29dc614 | 2897 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2898 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
6d6c1801 | 2899 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2900 | then : | |
2901 | else gcc_cv_as_leb128=yes | |
2902 | fi | |
a6b57da2 | 2903 | fi]], |
6d6c1801 | 2904 | [AC_DEFINE(HAVE_AS_LEB128, 1, |
b4866769 | 2905 | [Define if your assembler supports .sleb128 and .uleb128.])], |
2906 | [AC_DEFINE(HAVE_AS_LEB128, 0, | |
6d6c1801 | 2907 | [Define if your assembler supports .sleb128 and .uleb128.])]) |
2908 | ||
d6a34f83 | 2909 | # Determine if an .eh_frame section is read-only. |
2910 | gcc_fn_eh_frame_ro () { | |
2911 | $gcc_cv_as $1 -o conftest.o conftest.s > /dev/null 2>&1 && \ | |
2912 | $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2913 | sed -e '/.eh_frame/!d' -e N | grep READONLY > /dev/null | |
2914 | } | |
2915 | ||
fb39ff6e | 2916 | # Check if we have assembler support for unwind directives. |
2917 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
90deca2e | 2918 | ,, |
fb39ff6e | 2919 | [ .text |
2920 | .cfi_startproc | |
2921 | .cfi_offset 0, 0 | |
2922 | .cfi_same_value 1 | |
2923 | .cfi_def_cfa 1, 2 | |
2924 | .cfi_escape 1, 2, 3, 4, 5 | |
e94830ac | 2925 | .cfi_endproc], |
2926 | [case "$target" in | |
2927 | *-*-solaris*) | |
2928 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2929 | # read-only and read-write sections, we need to make sure that the | |
2930 | # assembler used emits read-write .eh_frame sections. | |
d6a34f83 | 2931 | if test "x$gcc_cv_ld_ro_rw_mix" = xread-write; then |
2932 | gcc_cv_as_cfi_directive=yes | |
2933 | elif test "x$gcc_cv_objdump" = x; then | |
2934 | # No objdump, err on the side of caution. | |
2935 | gcc_cv_as_cfi_directive=no | |
2936 | else | |
2937 | if test x$gas = xyes; then | |
2938 | as_32_opt="--32" | |
2939 | as_64_opt="--64" | |
e94830ac | 2940 | else |
d6a34f83 | 2941 | as_32_opt="-m32" |
2942 | as_64_opt="-m64" | |
e94830ac | 2943 | fi |
d6a34f83 | 2944 | case "$target" in |
2945 | sparc*-*-solaris2.*) | |
2946 | # On Solaris/SPARC, .eh_frame sections should always be read-write. | |
2947 | if gcc_fn_eh_frame_ro $as_32_opt \ | |
2948 | || gcc_fn_eh_frame_ro $as_64_opt; then | |
2949 | gcc_cv_as_cfi_directive=no | |
2950 | else | |
2951 | gcc_cv_as_cfi_directive=yes | |
2952 | fi | |
2953 | ;; | |
2954 | i?86-*-solaris2.* | x86_64-*-solaris2.*) | |
2955 | # On Solaris/x86, make sure that GCC and assembler agree on using | |
2956 | # read-only .eh_frame sections for 64-bit. | |
2957 | if gcc_fn_eh_frame_ro $as_32_opt; then | |
2958 | gcc_cv_as_cfi_directive=no | |
2959 | elif gcc_fn_eh_frame_ro $as_64_opt; then | |
2960 | gcc_cv_as_cfi_directive=yes | |
2961 | else | |
2962 | gcc_cv_as_cfi_directive=no | |
2963 | fi | |
2964 | ;; | |
2965 | esac | |
e94830ac | 2966 | fi |
2967 | ;; | |
2968 | *-*-*) | |
2969 | gcc_cv_as_cfi_directive=yes | |
2970 | ;; | |
2971 | esac]) | |
331fc3f2 | 2972 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then |
8eac5d17 | 2973 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, |
2974 | ,, | |
2975 | [ .text | |
2976 | .cfi_startproc | |
2977 | .cfi_adjust_cfa_offset 64 | |
1bf24b5f | 2978 | .skip 75040, 0 |
8eac5d17 | 2979 | .cfi_adjust_cfa_offset 128 |
2980 | .cfi_endproc], | |
a6b57da2 | 2981 | [[ |
331fc3f2 | 2982 | if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \ |
1bf24b5f | 2983 | | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then |
8eac5d17 | 2984 | gcc_cv_as_cfi_advance_working=yes |
2985 | fi | |
a6b57da2 | 2986 | ]]) |
8eac5d17 | 2987 | else |
331fc3f2 | 2988 | # no objdump, err on the side of caution |
f9a42338 | 2989 | gcc_cv_as_cfi_advance_working=no |
8eac5d17 | 2990 | fi |
ff5f1a52 | 2991 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE) |
fb39ff6e | 2992 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
8eac5d17 | 2993 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2994 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
3dcd5df1 | 2995 | [Define 0/1 if your assembler supports CFI directives.]) |
2996 | ||
ff5f1a52 | 2997 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE) |
3dcd5df1 | 2998 | gcc_GAS_CHECK_FEATURE([cfi personality directive], |
90deca2e | 2999 | gcc_cv_as_cfi_personality_directive, ,, |
3dcd5df1 | 3000 | [ .text |
846a6223 | 3001 | .cfi_startproc |
3dcd5df1 | 3002 | .cfi_personality 0, symbol |
3003 | .cfi_endproc]) | |
3004 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
f00f02a3 | 3005 | [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], |
3dcd5df1 | 3006 | [Define 0/1 if your assembler supports .cfi_personality.]) |
fb39ff6e | 3007 | |
033a2356 | 3008 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
3009 | gcc_cv_as_cfi_sections_directive, ,, | |
3010 | [ .text | |
3011 | .cfi_sections .debug_frame, .eh_frame | |
3012 | .cfi_startproc | |
331fc3f2 | 3013 | .cfi_endproc], |
3014 | [case $target_os in | |
297677bc | 3015 | win32 | pe | cygwin* | mingw32*) |
331fc3f2 | 3016 | # Need to check that we generated the correct relocation for the |
3017 | # .debug_frame section. This was fixed for binutils 2.21. | |
3018 | gcc_cv_as_cfi_sections_directive=no | |
3019 | if test "x$gcc_cv_objdump" != x; then | |
3020 | if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \ | |
3021 | grep secrel > /dev/null; then | |
3022 | gcc_cv_as_cfi_sections_directive=yes | |
3023 | fi | |
3024 | fi | |
3025 | ;; | |
3026 | *) | |
3027 | gcc_cv_as_cfi_sections_directive=yes | |
3028 | ;; | |
3029 | esac]) | |
ff5f1a52 | 3030 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) |
033a2356 | 3031 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, |
f00f02a3 | 3032 | [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], |
033a2356 | 3033 | [Define 0/1 if your assembler supports .cfi_sections.]) |
3034 | ||
6d6c1801 | 3035 | # GAS versions up to and including 2.11.0 may mis-optimize |
3036 | # .eh_frame data. | |
3037 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
3038 | [elf,2,12,0],, | |
3039 | [ .text | |
c3f311c4 | 3040 | .LFB1: |
3041 | .4byte 0 | |
3042 | .L1: | |
3043 | .4byte 0 | |
3044 | .LFE1: | |
3045 | .section .eh_frame,"aw",@progbits | |
3046 | __FRAME_BEGIN__: | |
3047 | .4byte .LECIE1-.LSCIE1 | |
3048 | .LSCIE1: | |
3049 | .4byte 0x0 | |
3050 | .byte 0x1 | |
3051 | .ascii "z\0" | |
3052 | .byte 0x1 | |
3053 | .byte 0x78 | |
3054 | .byte 0x1a | |
3055 | .byte 0x0 | |
3056 | .byte 0x4 | |
3057 | .4byte 1 | |
3058 | .p2align 1 | |
3059 | .LECIE1: | |
3060 | .LSFDE1: | |
3061 | .4byte .LEFDE1-.LASFDE1 | |
3062 | .LASFDE1: | |
3063 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
3064 | .4byte .LFB1 | |
3065 | .4byte .LFE1-.LFB1 | |
3066 | .byte 0x4 | |
3067 | .4byte .LFE1-.LFB1 | |
3068 | .byte 0x4 | |
3069 | .4byte .L1-.LFB1 | |
6d6c1801 | 3070 | .LEFDE1:], |
6a8964db | 3071 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
3072 | cat > conftest.lit <<EOF | |
c3f311c4 | 3073 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
3074 | 0010 01000000 12000000 18000000 00000000 ................ | |
6a8964db | 3075 | 0020 08000000 04080000 0044 .........D @&t@ |
82ebecf9 | 3076 | EOF |
6a8964db | 3077 | cat > conftest.big <<EOF |
82ebecf9 | 3078 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
3079 | 0010 00000001 00000012 00000018 00000000 ................ | |
6a8964db | 3080 | 0020 00000008 04000000 0844 .........D @&t@ |
c3f311c4 | 3081 | EOF |
6d6c1801 | 3082 | # If the assembler didn't choke, and we can objdump, |
3083 | # and we got the correct data, then succeed. | |
a9e7d751 | 3084 | # The text in the here-document typically retains its unix-style line |
3085 | # endings, while the output of objdump will use host line endings. | |
3086 | # Therefore, use diff -b for the comparisons. | |
6d6c1801 | 3087 | if test x$gcc_cv_objdump != x \ |
3088 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
3089 | | tail -3 > conftest.got \ | |
a9e7d751 | 3090 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
3091 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
6d6c1801 | 3092 | then |
3093 | gcc_cv_as_eh_frame=yes | |
3094 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
3095 | gcc_cv_as_eh_frame=buggy | |
3096 | else | |
3097 | # Uh oh, what do we do now? | |
3098 | gcc_cv_as_eh_frame=no | |
3099 | fi]) | |
3100 | ||
3101 | if test $gcc_cv_as_eh_frame = buggy; then | |
3102 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
3103 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
bb2821c0 | 3104 | fi |
bb2821c0 | 3105 | |
f575e216 | 3106 | # Test if the assembler supports the section flag 'e' or #exclude for |
3107 | # specifying an excluded section. | |
3108 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e, | |
3109 | [2,22,51], [--fatal-warnings], | |
3110 | [.section foo1,"e" | |
3111 | .byte 0,0,0,0]) | |
3112 | if test $gcc_cv_as_section_exclude_e = no; then | |
3113 | case "${target}" in | |
3114 | # Solaris as uses #exclude instead. | |
3115 | *-*-solaris2*) | |
3116 | case "${target}" in | |
3117 | sparc*-*-solaris2*) | |
3118 | conftest_s='.section "foo1", #exclude' | |
3119 | ;; | |
3120 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3121 | conftest_s='.section foo1, #exclude' | |
3122 | ;; | |
3123 | esac | |
3124 | ;; | |
3125 | esac | |
3126 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,, | |
3127 | [$conftest_s | |
3128 | .byte 0,0,0,0]) | |
3129 | fi | |
3130 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE, | |
3131 | [`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`], | |
3132 | [Define if your assembler supports specifying the exclude section flag.]) | |
3133 | ||
6d6c1801 | 3134 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
3135 | [elf,2,12,0], [--fatal-warnings], | |
cdb2d692 | 3136 | [.section .rodata.str, "aMS", @progbits, 1]) |
537cd941 | 3137 | if test $gcc_cv_as_shf_merge = no; then |
3138 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
3139 | [elf,2,12,0], [--fatal-warnings], | |
3140 | [.section .rodata.str, "aMS", %progbits, 1]) | |
3141 | fi | |
cdb2d692 | 3142 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
3143 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3144 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
6d6c1801 | 3145 | |
fa948efa | 3146 | gcc_cv_ld_aligned_shf_merge=yes |
3147 | case "$target" in | |
fa948efa | 3148 | # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for |
3149 | # alignment > 1. | |
3150 | sparc*-*-solaris2.11*) | |
3151 | if test x"$gnu_ld" = xno \ | |
3152 | && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then | |
3153 | gcc_cv_ld_aligned_shf_merge=no | |
3154 | fi | |
3155 | ;; | |
3156 | esac | |
3157 | AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE, | |
3158 | [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3159 | [Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.]) | |
3160 | ||
ffebb4e7 | 3161 | gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,, |
3162 | [.stabs "gcc2_compiled.",60,0,0,0],, | |
3163 | [AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1, | |
3164 | [Define if your assembler supports .stabs.])]) | |
3165 | ||
3468b0d6 | 3166 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)], |
3167 | gcc_cv_as_comdat_group, | |
2593b9be | 3168 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 3169 | [.section .text,"axG",@progbits,.foo,comdat]) |
3170 | if test $gcc_cv_as_comdat_group = yes; then | |
3171 | gcc_cv_as_comdat_group_percent=no | |
3468b0d6 | 3172 | gcc_cv_as_comdat_group_group=no |
537cd941 | 3173 | else |
3468b0d6 | 3174 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)], |
3175 | gcc_cv_as_comdat_group_percent, | |
2593b9be | 3176 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 3177 | [.section .text,"axG",%progbits,.foo,comdat]) |
3468b0d6 | 3178 | if test $gcc_cv_as_comdat_group_percent = yes; then |
3179 | gcc_cv_as_comdat_group_group=no | |
3180 | else | |
3181 | case "${target}" in | |
3182 | # Sun as uses a completely different syntax. | |
3183 | *-*-solaris2*) | |
3184 | case "${target}" in | |
3185 | sparc*-*-solaris2*) | |
3186 | conftest_s=' | |
3187 | .group foo,".text%foo",#comdat | |
3188 | .section ".text%foo", #alloc,#execinstr,#progbits | |
3189 | .globl foo | |
3190 | foo: | |
3191 | ' | |
3192 | ;; | |
0fd03648 | 3193 | i?86-*-solaris2* | x86_64-*-solaris2*) |
3468b0d6 | 3194 | conftest_s=' |
3195 | .group foo,.text%foo,#comdat | |
3196 | .section .text%foo, "ax", @progbits | |
3197 | .globl foo | |
3198 | foo: | |
3199 | ' | |
3200 | ;; | |
3201 | esac | |
3202 | gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)], | |
3203 | gcc_cv_as_comdat_group_group, | |
3204 | ,, [$conftest_s]) | |
3205 | ;; | |
3206 | esac | |
66924b3f | 3207 | if test -z "${gcc_cv_as_comdat_group_group+set}"; then |
3208 | gcc_cv_as_comdat_group_group=no | |
3209 | fi | |
3468b0d6 | 3210 | fi |
537cd941 | 3211 | fi |
c2ce8e07 | 3212 | if test x"$ld_is_gold" = xyes; then |
3213 | comdat_group=yes | |
3214 | elif test $in_tree_ld = yes ; then | |
e97d11c2 | 3215 | comdat_group=no |
3216 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3217 | && test $in_tree_ld_is_elf = yes; then | |
3218 | comdat_group=yes | |
3219 | fi | |
dfbfdd90 | 3220 | elif echo "$ld_ver" | grep GNU > /dev/null; then |
2593b9be | 3221 | comdat_group=yes |
3222 | if test 0"$ld_date" -lt 20050308; then | |
3223 | if test -n "$ld_date"; then | |
3224 | # If there was date string, but was earlier than 2005-03-08, fail | |
3225 | comdat_group=no | |
3226 | elif test "$ld_vers_major" -lt 2; then | |
3227 | comdat_group=no | |
3228 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
3229 | comdat_group=no | |
3230 | fi | |
3231 | fi | |
f3424fe6 | 3232 | else |
dfbfdd90 | 3233 | changequote(,)dnl |
3234 | case "${target}" in | |
3235 | *-*-solaris2.1[1-9]*) | |
3468b0d6 | 3236 | comdat_group=no |
dfbfdd90 | 3237 | # Sun ld has COMDAT group support since Solaris 9, but it doesn't |
3238 | # interoperate with GNU as until Solaris 11 build 130, i.e. ld | |
3239 | # version 1.688. | |
3240 | # | |
3468b0d6 | 3241 | # If using Sun as for COMDAT group as emitted by GCC, one needs at |
3242 | # least ld version 1.2267. | |
3243 | if test "$ld_vers_major" -gt 1; then | |
dfbfdd90 | 3244 | comdat_group=yes |
3468b0d6 | 3245 | elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then |
3246 | comdat_group=yes | |
3247 | elif test "$ld_vers_minor" -ge 2267; then | |
3248 | comdat_group=yes | |
dfbfdd90 | 3249 | fi |
3250 | ;; | |
3251 | *) | |
3252 | # Assume linkers other than GNU ld don't support COMDAT group. | |
3253 | comdat_group=no | |
3254 | ;; | |
3255 | esac | |
3256 | changequote([,])dnl | |
f3424fe6 | 3257 | fi |
dfbfdd90 | 3258 | # Allow overriding the automatic COMDAT group tests above. |
3259 | AC_ARG_ENABLE(comdat, | |
3260 | [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])], | |
3261 | [comdat_group="$enable_comdat"]) | |
f3424fe6 | 3262 | if test $comdat_group = no; then |
3263 | gcc_cv_as_comdat_group=no | |
3264 | gcc_cv_as_comdat_group_percent=no | |
3468b0d6 | 3265 | gcc_cv_as_comdat_group_group=no |
2593b9be | 3266 | fi |
3267 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
3468b0d6 | 3268 | [`if test $gcc_cv_as_comdat_group = yes \ |
3269 | || test $gcc_cv_as_comdat_group_percent = yes \ | |
3270 | || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`], | |
2593b9be | 3271 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
537cd941 | 3272 | |
03cc6d54 | 3273 | # Restrict this test to Solaris/x86: other targets define this statically. |
3274 | case "${target}" in | |
3275 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3276 | AC_MSG_CHECKING(support for hidden thunks in linkonce sections) | |
3277 | if test $in_tree_ld = yes || echo "$ld_ver" | grep GNU > /dev/null; then | |
3278 | hidden_linkonce=yes | |
3279 | else | |
3280 | case "${target}" in | |
3281 | # Full support for hidden thunks in linkonce sections only appeared in | |
3282 | # Solaris 11/OpenSolaris. | |
3283 | *-*-solaris2.1[[1-9]]*) | |
3284 | hidden_linkonce=yes | |
3285 | ;; | |
3286 | *) | |
3287 | hidden_linkonce=no | |
3288 | ;; | |
3289 | esac | |
3290 | fi | |
3291 | AC_MSG_RESULT($hidden_linkonce) | |
3292 | AC_DEFINE_UNQUOTED(USE_HIDDEN_LINKONCE, | |
3293 | [`if test $hidden_linkonce = yes; then echo 1; else echo 0; fi`], | |
3294 | [Define 0/1 if your linker supports hidden thunks in linkonce sections.]) | |
3295 | ;; | |
3296 | esac | |
3297 | ||
b2bf47a6 | 3298 | gcc_GAS_CHECK_FEATURE([line table is_stmt support], |
3299 | gcc_cv_as_is_stmt, | |
3300 | [2,16,92],, | |
3301 | [ .text | |
3302 | .file 1 "conf.c" | |
3303 | .loc 1 1 0 is_stmt 1],, | |
3304 | [AC_DEFINE(HAVE_GAS_LOC_STMT, 1, | |
3305 | [Define if your assembler supports the .loc is_stmt sub-directive.])]) | |
3306 | ||
d01c707b | 3307 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
3308 | gcc_cv_as_discriminator, | |
3309 | [2,19,51],, | |
3310 | [ .text | |
3311 | .file 1 "conf.c" | |
3312 | .loc 1 1 0 discriminator 1],, | |
3313 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
3314 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
3315 | ||
c656b8fd | 3316 | # Thread-local storage - the check is heavily parameterized. |
2d6788fe | 3317 | conftest_s= |
3318 | tls_first_major= | |
3319 | tls_first_minor= | |
527d5be8 | 3320 | tls_as_opt= |
2d6788fe | 3321 | case "$target" in |
3322 | changequote(,)dnl | |
5f7b9df8 | 3323 | alpha*-*-*) |
3324 | conftest_s=' | |
3325 | .section ".tdata","awT",@progbits | |
3326 | foo: .long 25 | |
3327 | .text | |
3328 | ldq $27,__tls_get_addr($29) !literal!1 | |
3329 | lda $16,foo($29) !tlsgd!1 | |
3330 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
3331 | ldq $27,__tls_get_addr($29) !literal!2 | |
3332 | lda $16,foo($29) !tlsldm!2 | |
3333 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
3334 | ldq $1,foo($29) !gotdtprel | |
3335 | ldah $2,foo($29) !dtprelhi | |
3336 | lda $3,foo($2) !dtprello | |
3337 | lda $4,foo($29) !dtprel | |
3338 | ldq $1,foo($29) !gottprel | |
3339 | ldah $2,foo($29) !tprelhi | |
3340 | lda $3,foo($2) !tprello | |
3341 | lda $4,foo($29) !tprel' | |
3342 | tls_first_major=2 | |
3343 | tls_first_minor=13 | |
07a23b4e | 3344 | tls_as_opt=--fatal-warnings |
5f7b9df8 | 3345 | ;; |
4260aeee | 3346 | arc*-*-*) |
3347 | conftest_s=' | |
3348 | add_s r0,r0, @foo@tpoff' | |
3349 | tls_first_major=2 | |
3350 | tls_first_minor=23 | |
3351 | ;; | |
10178ded | 3352 | cris-*-*|crisv32-*-*) |
3353 | conftest_s=' | |
3354 | .section ".tdata","awT",@progbits | |
3355 | x: .long 25 | |
3356 | .text | |
3357 | move.d x:IE,$r10 | |
3358 | nop' | |
3359 | tls_first_major=2 | |
3360 | tls_first_minor=20 | |
3361 | tls_as_opt=--fatal-warnings | |
3362 | ;; | |
cfd199cb | 3363 | frv*-*-*) |
3364 | conftest_s=' | |
3365 | .section ".tdata","awT",@progbits | |
3366 | x: .long 25 | |
3367 | .text | |
3368 | call #gettlsoff(x)' | |
3369 | tls_first_major=2 | |
3370 | tls_first_minor=14 | |
3371 | ;; | |
716b2c5a | 3372 | hppa*-*-linux*) |
3373 | conftest_s=' | |
3374 | t1: .reg %r20 | |
3375 | t2: .reg %r21 | |
3376 | gp: .reg %r19 | |
3377 | .section ".tdata","awT",@progbits | |
3378 | foo: .long 25 | |
3379 | .text | |
3380 | .align 4 | |
3381 | addil LT%foo-$tls_gdidx$,gp | |
3382 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
3383 | b __tls_get_addr | |
3384 | nop | |
3385 | addil LT%foo-$tls_ldidx$,gp | |
3386 | b __tls_get_addr | |
3387 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
3388 | addil LR%foo-$tls_dtpoff$,%ret0 | |
3389 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
3390 | mfctl %cr27,%t1 | |
3391 | addil LT%foo-$tls_ieoff$,gp | |
3392 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
3393 | add %t1,%t2,%t3 | |
3394 | mfctl %cr27,%t1 | |
3395 | addil LR%foo-$tls_leoff$,%t1 | |
3396 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
3397 | tls_first_major=2 | |
3398 | tls_first_minor=15 | |
3399 | tls_as_opt=--fatal-warnings | |
3400 | ;; | |
f655717d | 3401 | arm*-*-*) |
3402 | conftest_s=' | |
3403 | .section ".tdata","awT",%progbits | |
3404 | foo: .long 25 | |
3405 | .text | |
3406 | .word foo(gottpoff) | |
3407 | .word foo(tpoff) | |
3408 | .word foo(tlsgd) | |
3409 | .word foo(tlsldm) | |
3410 | .word foo(tlsldo)' | |
3411 | tls_first_major=2 | |
3412 | tls_first_minor=17 | |
3413 | ;; | |
cb648ea4 | 3414 | i[34567]86-*-* | x86_64-*-*) |
7d070520 | 3415 | case "$target" in |
0fd03648 | 3416 | i[34567]86-*-solaris2.* | x86_64-*-solaris2.*) |
7d070520 | 3417 | on_solaris=yes |
14f27bc6 | 3418 | ;; |
7d070520 | 3419 | *) |
3420 | on_solaris=no | |
3421 | ;; | |
3422 | esac | |
3423 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3424 | conftest_s=' | |
3425 | .section .tdata,"awt",@progbits' | |
3426 | tls_first_major=0 | |
3427 | tls_first_minor=0 | |
e727a9cd | 3428 | tls_section_flag=t |
7d070520 | 3429 | changequote([,])dnl |
3430 | AC_DEFINE(TLS_SECTION_ASM_FLAG, 't', | |
3431 | [Define to the flag used to mark TLS sections if the default (`T') doesn't work.]) | |
3432 | changequote(,)dnl | |
3433 | else | |
3434 | conftest_s=' | |
3435 | .section ".tdata","awT",@progbits' | |
3436 | tls_first_major=2 | |
3437 | tls_first_minor=14 | |
e727a9cd | 3438 | tls_section_flag=T |
7d070520 | 3439 | tls_as_opt="--fatal-warnings" |
3440 | fi | |
cb648ea4 | 3441 | case "$target" in |
3442 | i[34567]86-*-*) | |
3443 | conftest_s="$conftest_s | |
2d6788fe | 3444 | foo: .long 25 |
3445 | .text | |
3446 | movl %gs:0, %eax | |
7d070520 | 3447 | leal foo@tlsgd(,%ebx,1), %eax |
3448 | leal foo@tlsldm(%ebx), %eax | |
3449 | leal foo@dtpoff(%eax), %edx | |
3450 | movl foo@gottpoff(%ebx), %eax | |
3451 | subl foo@gottpoff(%ebx), %eax | |
3452 | addl foo@gotntpoff(%ebx), %eax | |
3453 | movl foo@indntpoff, %eax | |
3454 | movl \$foo@tpoff, %eax | |
3455 | subl \$foo@tpoff, %eax | |
3456 | leal foo@ntpoff(%ecx), %eax" | |
cb648ea4 | 3457 | ;; |
3458 | x86_64-*-*) | |
3459 | if test x$on_solaris = xyes; then | |
3460 | case $gas_flag in | |
3461 | yes) tls_as_opt="$tls_as_opt --64" ;; | |
3462 | no) tls_as_opt="$tls_as_opt -xarch=amd64" ;; | |
3463 | esac | |
3464 | fi | |
3465 | conftest_s="$conftest_s | |
29d8dd5c | 3466 | foo: .long 25 |
3467 | .text | |
3468 | movq %fs:0, %rax | |
cb648ea4 | 3469 | leaq foo@tlsgd(%rip), %rdi |
3470 | leaq foo@tlsld(%rip), %rdi | |
3471 | leaq foo@dtpoff(%rax), %rdx | |
3472 | movq foo@gottpoff(%rip), %rax | |
3473 | movq \$foo@tpoff, %rax" | |
3474 | ;; | |
3475 | esac | |
3476 | ;; | |
c87e09ad | 3477 | ia64-*-*) |
3478 | conftest_s=' | |
3479 | .section ".tdata","awT",@progbits | |
3480 | foo: data8 25 | |
3481 | .text | |
3482 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
3483 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
3484 | addl r18 = @ltoff(@tprel(foo#)), gp | |
3485 | addl r19 = @dtprel(foo#), gp | |
3486 | adds r21 = @dtprel(foo#), r13 | |
3487 | movl r23 = @dtprel(foo#) | |
3488 | addl r20 = @tprel(foo#), gp | |
3489 | adds r22 = @tprel(foo#), r13 | |
3490 | movl r24 = @tprel(foo#)' | |
3491 | tls_first_major=2 | |
3492 | tls_first_minor=13 | |
07a23b4e | 3493 | tls_as_opt=--fatal-warnings |
c87e09ad | 3494 | ;; |
4eae25aa | 3495 | microblaze*-*-*) |
3496 | conftest_s=' | |
3497 | .section .tdata,"awT",@progbits | |
3498 | x: | |
3499 | .word 2 | |
3500 | .text | |
3501 | addik r5,r20,x@TLSGD | |
3502 | addik r5,r20,x@TLSLDM' | |
3503 | tls_first_major=2 | |
3504 | tls_first_minor=20 | |
3505 | tls_as_opt='--fatal-warnings' | |
3506 | ;; | |
42bdde4b | 3507 | mips*-*-*) |
3508 | conftest_s=' | |
3509 | .section .tdata,"awT",@progbits | |
3510 | x: | |
3511 | .word 2 | |
3512 | .text | |
3513 | addiu $4, $28, %tlsgd(x) | |
3514 | addiu $4, $28, %tlsldm(x) | |
3515 | lui $4, %dtprel_hi(x) | |
3516 | addiu $4, $4, %dtprel_lo(x) | |
3517 | lw $4, %gottprel(x)($28) | |
3518 | lui $4, %tprel_hi(x) | |
3519 | addiu $4, $4, %tprel_lo(x)' | |
3520 | tls_first_major=2 | |
3521 | tls_first_minor=16 | |
3522 | tls_as_opt='-32 --fatal-warnings' | |
3523 | ;; | |
869bde6b | 3524 | m68k-*-*) |
3525 | conftest_s=' | |
3526 | .section .tdata,"awT",@progbits | |
3527 | x: | |
3528 | .word 2 | |
3529 | .text | |
3530 | foo: | |
3531 | move.l x@TLSGD(%a5),%a0 | |
3532 | move.l x@TLSLDM(%a5),%a0 | |
3533 | move.l x@TLSLDO(%a5),%a0 | |
3534 | move.l x@TLSIE(%a5),%a0 | |
3535 | move.l x@TLSLE(%a5),%a0' | |
3536 | tls_first_major=2 | |
3537 | tls_first_minor=19 | |
3538 | tls_as_opt='--fatal-warnings' | |
3539 | ;; | |
de65406d | 3540 | nios2-*-*) |
3541 | conftest_s=' | |
3542 | .section ".tdata","awT",@progbits' | |
3543 | tls_first_major=2 | |
3544 | tls_first_minor=23 | |
3545 | tls_as_opt="--fatal-warnings" | |
3546 | ;; | |
16878cba | 3547 | aarch64*-*-*) |
3548 | conftest_s=' | |
3549 | .section ".tdata","awT",%progbits | |
3550 | foo: .long 25 | |
3551 | .text | |
3552 | adrp x0, :tlsgd:x | |
3553 | add x0, x0, #:tlsgd_lo12:x | |
3554 | bl __tls_get_addr | |
3555 | nop' | |
3556 | tls_first_major=2 | |
3557 | tls_first_minor=20 | |
3558 | tls_as_opt='--fatal-warnings' | |
3559 | ;; | |
d61fdfe7 | 3560 | or1k*-*-*) |
3561 | conftest_s=' | |
3562 | .section ".tdata","awT",@progbits | |
3563 | foo: .long 25 | |
3564 | .text | |
3565 | l.movhi r3, tpoffha(foo) | |
3566 | l.add r3, r3, r10 | |
3567 | l.lwz r4, tpofflo(foo)(r3)' | |
3568 | tls_first_major=2 | |
3569 | tls_first_minor=30 | |
3570 | tls_as_opt=--fatal-warnings | |
3571 | ;; | |
e69effa4 | 3572 | powerpc-ibm-aix*) |
3573 | conftest_s=' | |
3574 | .extern __get_tpointer | |
3575 | .toc | |
3576 | LC..1: | |
3577 | .tc a[TC],a[TL]@le | |
3578 | .csect .text[PR] | |
3579 | .tlstest: | |
3580 | lwz 9,LC..1(2) | |
3581 | bla __get_tpointer | |
3582 | lwzx 3,9,3 | |
3583 | .globl a | |
3584 | .csect a[TL],4 | |
3585 | a: | |
3586 | .space 4' | |
3587 | tls_first_major=0 | |
3588 | tls_first_minor=0 | |
3589 | ;; | |
e0b071f6 | 3590 | powerpc64*-*-*) |
9b552c45 | 3591 | conftest_s=' |
3592 | .section ".tdata","awT",@progbits | |
3593 | .align 3 | |
3594 | ld0: .space 8 | |
3595 | ld1: .space 8 | |
3596 | x1: .space 8 | |
3597 | x2: .space 8 | |
3598 | x3: .space 8 | |
3599 | .text | |
3600 | addi 3,2,ld0@got@tlsgd | |
3601 | bl .__tls_get_addr | |
3602 | nop | |
3603 | addi 3,2,ld1@toc | |
3604 | bl .__tls_get_addr | |
3605 | nop | |
3606 | addi 3,2,x1@got@tlsld | |
3607 | bl .__tls_get_addr | |
3608 | nop | |
3609 | addi 9,3,x1@dtprel | |
3610 | bl .__tls_get_addr | |
3611 | nop | |
3612 | addis 9,3,x2@dtprel@ha | |
3613 | addi 9,9,x2@dtprel@l | |
3614 | bl .__tls_get_addr | |
3615 | nop | |
3616 | ld 9,x3@got@dtprel(2) | |
3617 | add 9,9,3 | |
3618 | bl .__tls_get_addr | |
3619 | nop' | |
3620 | tls_first_major=2 | |
3621 | tls_first_minor=14 | |
07a23b4e | 3622 | tls_as_opt="-a64 --fatal-warnings" |
9b552c45 | 3623 | ;; |
15ba1c5f | 3624 | powerpc*-*-*) |
3625 | conftest_s=' | |
3626 | .section ".tdata","awT",@progbits | |
3627 | .align 2 | |
3628 | ld0: .space 4 | |
3629 | ld1: .space 4 | |
3630 | x1: .space 4 | |
3631 | x2: .space 4 | |
3632 | x3: .space 4 | |
3633 | .text | |
3634 | addi 3,31,ld0@got@tlsgd | |
3635 | bl __tls_get_addr | |
3636 | addi 3,31,x1@got@tlsld | |
3637 | bl __tls_get_addr | |
3638 | addi 9,3,x1@dtprel | |
3639 | addis 9,3,x2@dtprel@ha | |
3640 | addi 9,9,x2@dtprel@l | |
3641 | lwz 9,x3@got@tprel(31) | |
3642 | add 9,9,x@tls | |
3643 | addi 9,2,x1@tprel | |
3644 | addis 9,2,x2@tprel@ha | |
3645 | addi 9,9,x2@tprel@l' | |
3646 | tls_first_major=2 | |
3647 | tls_first_minor=14 | |
3648 | tls_as_opt="-a32 --fatal-warnings" | |
3649 | ;; | |
fb55f581 | 3650 | riscv*-*-*) |
3651 | conftest_s=' | |
3652 | .section .tdata,"awT",@progbits | |
3653 | x: .word 2 | |
3654 | .text | |
3655 | la.tls.gd a0,x | |
3656 | call __tls_get_addr' | |
3657 | tls_first_major=2 | |
3658 | tls_first_minor=21 | |
3659 | tls_as_opt='--fatal-warnings' | |
3660 | ;; | |
be00aaa8 | 3661 | s390-*-*) |
3662 | conftest_s=' | |
3663 | .section ".tdata","awT",@progbits | |
3664 | foo: .long 25 | |
3665 | .text | |
3666 | .long foo@TLSGD | |
3667 | .long foo@TLSLDM | |
3668 | .long foo@DTPOFF | |
3669 | .long foo@NTPOFF | |
3670 | .long foo@GOTNTPOFF | |
3671 | .long foo@INDNTPOFF | |
3672 | l %r1,foo@GOTNTPOFF(%r12) | |
3673 | l %r1,0(%r1):tls_load:foo | |
3674 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
3675 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
3676 | tls_first_major=2 | |
3677 | tls_first_minor=14 | |
07a23b4e | 3678 | tls_as_opt="-m31 --fatal-warnings" |
be00aaa8 | 3679 | ;; |
3680 | s390x-*-*) | |
3681 | conftest_s=' | |
3682 | .section ".tdata","awT",@progbits | |
3683 | foo: .long 25 | |
3684 | .text | |
3685 | .quad foo@TLSGD | |
3686 | .quad foo@TLSLDM | |
3687 | .quad foo@DTPOFF | |
3688 | .quad foo@NTPOFF | |
3689 | .quad foo@GOTNTPOFF | |
3690 | lg %r1,foo@GOTNTPOFF(%r12) | |
3691 | larl %r1,foo@INDNTPOFF | |
3692 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
3693 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
3694 | tls_first_major=2 | |
3695 | tls_first_minor=14 | |
07a23b4e | 3696 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
be00aaa8 | 3697 | ;; |
f12debca | 3698 | sh-*-* | sh[123456789lbe]*-*-*) |
ae852eea | 3699 | conftest_s=' |
3700 | .section ".tdata","awT",@progbits | |
3701 | foo: .long 25 | |
3702 | .text | |
3703 | .long foo@TLSGD | |
3704 | .long foo@TLSLDM | |
3705 | .long foo@DTPOFF | |
3706 | .long foo@GOTTPOFF | |
3707 | .long foo@TPOFF' | |
3708 | tls_first_major=2 | |
3709 | tls_first_minor=13 | |
07a23b4e | 3710 | tls_as_opt=--fatal-warnings |
ae852eea | 3711 | ;; |
05b3a83f | 3712 | sparc*-*-*) |
07a23b4e | 3713 | case "$target" in |
3714 | sparc*-sun-solaris2.*) | |
3715 | on_solaris=yes | |
3716 | ;; | |
3717 | *) | |
3718 | on_solaris=no | |
3719 | ;; | |
3720 | esac | |
3721 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3722 | conftest_s=' | |
eedcd8ac | 3723 | .section ".tdata",#alloc,#write,#tls' |
07a23b4e | 3724 | tls_first_major=0 |
3725 | tls_first_minor=0 | |
3726 | else | |
3727 | conftest_s=' | |
eedcd8ac | 3728 | .section ".tdata","awT",@progbits' |
3729 | tls_first_major=2 | |
3730 | tls_first_minor=14 | |
3731 | tls_as_opt="-32 --fatal-warnings" | |
3732 | fi | |
3733 | conftest_s="$conftest_s | |
05b3a83f | 3734 | foo: .long 25 |
3735 | .text | |
3736 | sethi %tgd_hi22(foo), %o0 | |
3737 | add %o0, %tgd_lo10(foo), %o1 | |
3738 | add %l7, %o1, %o0, %tgd_add(foo) | |
3739 | call __tls_get_addr, %tgd_call(foo) | |
3740 | sethi %tldm_hi22(foo), %l1 | |
3741 | add %l1, %tldm_lo10(foo), %l2 | |
3742 | add %l7, %l2, %o0, %tldm_add(foo) | |
3743 | call __tls_get_addr, %tldm_call(foo) | |
3744 | sethi %tldo_hix22(foo), %l3 | |
3745 | xor %l3, %tldo_lox10(foo), %l4 | |
3746 | add %o0, %l4, %l5, %tldo_add(foo) | |
3747 | sethi %tie_hi22(foo), %o3 | |
3748 | add %o3, %tie_lo10(foo), %o3 | |
3749 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
3750 | add %g7, %o2, %o4, %tie_add(foo) | |
3751 | sethi %tle_hix22(foo), %l1 | |
3752 | xor %l1, %tle_lox10(foo), %o5 | |
eedcd8ac | 3753 | ld [%g7 + %o5], %o1" |
05b3a83f | 3754 | ;; |
7ce78e23 | 3755 | tilepro*-*-*) |
3756 | conftest_s=' | |
3757 | .section ".tdata","awT",@progbits | |
3758 | foo: .long 25 | |
3759 | .text | |
3760 | addli r0, zero, tls_gd(foo) | |
3761 | auli r0, zero, tls_gd_ha16(foo) | |
3762 | addli r0, r0, tls_gd_lo16(foo) | |
3763 | jal __tls_get_addr | |
3764 | addli r0, zero, tls_ie(foo) | |
3765 | auli r0, r0, tls_ie_ha16(foo) | |
3766 | addli r0, r0, tls_ie_lo16(foo)' | |
3767 | tls_first_major=2 | |
3768 | tls_first_minor=22 | |
3769 | tls_as_opt="--fatal-warnings" | |
3770 | ;; | |
3771 | tilegx*-*-*) | |
3772 | conftest_s=' | |
3773 | .section ".tdata","awT",@progbits | |
3774 | foo: .long 25 | |
3775 | .text | |
3776 | shl16insli r0, zero, hw0_last_tls_gd(foo) | |
3777 | shl16insli r0, zero, hw1_last_tls_gd(foo) | |
3778 | shl16insli r0, r0, hw0_tls_gd(foo) | |
3779 | jal __tls_get_addr | |
3780 | shl16insli r0, zero, hw1_last_tls_ie(foo) | |
3781 | shl16insli r0, r0, hw0_tls_ie(foo)' | |
3782 | tls_first_major=2 | |
3783 | tls_first_minor=22 | |
3784 | tls_as_opt="--fatal-warnings" | |
3785 | ;; | |
c656b8fd | 3786 | xtensa*-*-*) |
3787 | conftest_s=' | |
3788 | .section ".tdata","awT",@progbits | |
3789 | foo: .long 25 | |
3790 | .text | |
3791 | movi a8, foo@TLSFUNC | |
3792 | movi a10, foo@TLSARG | |
3793 | callx8.tls a8, foo@TLSCALL' | |
3794 | tls_first_major=2 | |
3795 | tls_first_minor=19 | |
3796 | ;; | |
05b3a83f | 3797 | changequote([,])dnl |
2d6788fe | 3798 | esac |
c024e802 | 3799 | set_have_as_tls=no |
3800 | if test "x$enable_tls" = xno ; then | |
3801 | : # TLS explicitly disabled. | |
3802 | elif test "x$enable_tls" = xyes ; then | |
3803 | set_have_as_tls=yes # TLS explicitly enabled. | |
3804 | elif test -z "$tls_first_major"; then | |
6d6c1801 | 3805 | : # If we don't have a check, assume no support. |
3806 | else | |
3807 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
07a23b4e | 3808 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
c024e802 | 3809 | [set_have_as_tls=yes]) |
3810 | fi | |
3811 | if test $set_have_as_tls = yes ; then | |
3812 | AC_DEFINE(HAVE_AS_TLS, 1, | |
eedcd8ac | 3813 | [Define if your assembler and linker support thread-local storage.]) |
2d6788fe | 3814 | fi |
6d6c1801 | 3815 | |
3816 | # Target-specific assembler checks. | |
2d6788fe | 3817 | |
79f90e2b | 3818 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
3819 | gcc_cv_ld_static_dynamic=no | |
e6937b3a | 3820 | gcc_cv_ld_static_option='-Bstatic' |
3821 | gcc_cv_ld_dynamic_option='-Bdynamic' | |
79f90e2b | 3822 | if test $in_tree_ld = yes ; then |
1301d110 | 3823 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then |
79f90e2b | 3824 | gcc_cv_ld_static_dynamic=yes |
3825 | fi | |
3826 | elif test x$gcc_cv_ld != x; then | |
92ff09c4 | 3827 | # Check if linker supports -Bstatic/-Bdynamic option |
f50c2ca3 | 3828 | if $gcc_cv_ld --help 2>&1 | grep -- -Bstatic > /dev/null \ |
3829 | && $gcc_cv_ld --help 2>&1 | grep -- -Bdynamic > /dev/null; then | |
92ff09c4 | 3830 | gcc_cv_ld_static_dynamic=yes |
3831 | else | |
3832 | case "$target" in | |
82163b89 | 3833 | # AIX ld uses -b flags |
3834 | *-*-aix4.[[23]]* | *-*-aix[[5-9]]*) | |
3835 | gcc_cv_ld_static_dynamic=yes | |
3836 | gcc_cv_ld_static_option="-bstatic" | |
3837 | gcc_cv_ld_dynamic_option="-bdynamic" | |
3838 | ;; | |
098bbbe5 | 3839 | # HP-UX ld uses -a flags to select between shared and archive. |
3840 | *-*-hpux*) | |
3841 | if test x"$gnu_ld" = xno; then | |
3842 | gcc_cv_ld_static_dynamic=yes | |
3843 | gcc_cv_ld_static_option="-aarchive_shared" | |
3844 | gcc_cv_ld_dynamic_option="-adefault" | |
3845 | fi | |
3846 | ;; | |
92ff09c4 | 3847 | # Solaris 2 ld always supports -Bstatic/-Bdynamic. |
3848 | *-*-solaris2*) | |
3849 | gcc_cv_ld_static_dynamic=yes | |
3850 | ;; | |
3851 | esac | |
3852 | fi | |
79f90e2b | 3853 | fi |
3854 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
3855 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
e6937b3a | 3856 | [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.]) |
3857 | AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option", | |
3858 | [Define to the linker option to disable use of shared objects.]) | |
3859 | AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option", | |
3860 | [Define to the linker option to enable use of shared objects.]) | |
79f90e2b | 3861 | fi |
3862 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
3863 | ||
7176d366 | 3864 | AC_MSG_CHECKING(linker --version-script option) |
3865 | gcc_cv_ld_version_script=no | |
3866 | ld_version_script_option='' | |
3867 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3868 | gcc_cv_ld_version_script=yes | |
3869 | ld_version_script_option='--version-script' | |
3870 | elif test x$gcc_cv_ld != x; then | |
3871 | case "$target" in | |
3872 | # Solaris 2 ld always supports -M. It also supports a subset of | |
3873 | # --version-script since Solaris 11.4, but requires | |
3874 | # -z gnu-version-script-compat to activate. | |
3875 | *-*-solaris2*) | |
3876 | gcc_cv_ld_version_script=yes | |
3877 | ld_version_script_option='-M' | |
3878 | ;; | |
3879 | esac | |
3880 | fi | |
3881 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3882 | AC_MSG_RESULT($gcc_cv_ld_version_script) | |
3883 | AC_SUBST(ld_version_script_option) | |
3884 | ||
3885 | AC_MSG_CHECKING(linker soname option) | |
3886 | gcc_cv_ld_soname=no | |
3887 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3888 | gcc_cv_ld_soname=yes | |
3889 | ld_soname_option='-soname' | |
3890 | elif test x$gcc_cv_ld != x; then | |
3891 | case "$target" in | |
3892 | *-*-darwin*) | |
3893 | gcc_cv_ld_soname=yes | |
3894 | ld_soname_option='-install_name' | |
3895 | ;; | |
8fe7c804 | 3896 | # Solaris 2 ld always supports -h. It also supports --soname for GNU |
3897 | # ld compatiblity since some Solaris 10 update. | |
3898 | *-*-solaris2*) | |
3899 | gcc_cv_ld_soname=yes | |
3900 | ld_soname_option='-h' | |
3901 | ;; | |
7176d366 | 3902 | esac |
3903 | fi | |
3904 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3905 | AC_MSG_RESULT($gcc_cv_ld_soname) | |
3906 | AC_SUBST(ld_soname_option) | |
3907 | ||
9c948bc2 | 3908 | if test x"$demangler_in_ld" = xyes; then |
3909 | AC_MSG_CHECKING(linker --demangle support) | |
3910 | gcc_cv_ld_demangle=no | |
3911 | if test $in_tree_ld = yes; then | |
3912 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
3913 | gcc_cv_ld_demangle=yes | |
3914 | fi | |
3915 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
3916 | # Check if the GNU linker supports --demangle option | |
f50c2ca3 | 3917 | if $gcc_cv_ld --help 2>&1 | grep no-demangle > /dev/null; then |
9c948bc2 | 3918 | gcc_cv_ld_demangle=yes |
3919 | fi | |
3920 | fi | |
3921 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
3922 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
3923 | [Define if your linker supports --demangle option.]) | |
3924 | fi | |
3925 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
3926 | fi | |
3927 | ||
de4d280b | 3928 | AC_MSG_CHECKING(linker plugin support) |
c5f741b3 | 3929 | gcc_cv_lto_plugin=0 |
98de5262 | 3930 | if test -f liblto_plugin.la; then |
1dc619a1 | 3931 | save_ld_ver="$ld_ver" |
3932 | save_ld_vers_major="$ld_vers_major" | |
3933 | save_ld_vers_minor="$ld_vers_minor" | |
3934 | save_ld_is_gold="$ld_is_gold" | |
3935 | ||
3936 | ld_is_gold=no | |
c5f741b3 | 3937 | |
1dc619a1 | 3938 | if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then |
3939 | ld_ver="GNU ld" | |
3940 | # FIXME: ld_is_gold? | |
3941 | ld_vers_major="$gcc_cv_gld_major_version" | |
3942 | ld_vers_minor="$gcc_cv_gld_minor_version" | |
3943 | else | |
3944 | # Determine plugin linker version. | |
3945 | # FIXME: Partial duplicate from above, generalize. | |
3946 | changequote(,)dnl | |
3947 | ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q` | |
3948 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
3949 | if echo "$ld_ver" | grep "GNU gold" > /dev/null; then | |
3950 | ld_is_gold=yes | |
3951 | ld_vers=`echo $ld_ver | sed -n \ | |
3952 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
3953 | else | |
3954 | ld_vers=`echo $ld_ver | sed -n \ | |
3955 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
3956 | fi | |
3957 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
3958 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
c5f741b3 | 3959 | fi |
1dc619a1 | 3960 | changequote([,])dnl |
3961 | fi | |
3962 | ||
3963 | # Determine plugin support. | |
3964 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
c5f741b3 | 3965 | # Require GNU ld or gold 2.21+ for plugin support by default. |
3966 | if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then | |
3967 | gcc_cv_lto_plugin=2 | |
3968 | # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20. | |
3969 | elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then | |
3970 | gcc_cv_lto_plugin=1 | |
de4d280b | 3971 | fi |
de4d280b | 3972 | fi |
1dc619a1 | 3973 | |
3974 | ld_ver="$save_ld_ver" | |
3975 | ld_vers_major="$save_ld_vers_major" | |
3976 | ld_vers_minor="$save_ld_vers_minor" | |
3977 | ld_is_gold="$save_ld_is_gold" | |
de4d280b | 3978 | fi |
c5f741b3 | 3979 | AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin, |
3980 | [Define to the level of your linker's plugin support.]) | |
de4d280b | 3981 | AC_MSG_RESULT($gcc_cv_lto_plugin) |
3982 | ||
aaa50706 | 3983 | # Target OS-specific assembler checks. |
3984 | ||
3985 | case "$target_os" in | |
3986 | darwin*) | |
3987 | gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option], | |
3988 | gcc_cv_as_mmacosx_version_min,, | |
3989 | [-mmacosx-version-min=10.1], [.text],, | |
3990 | [AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1, | |
3991 | [Define if your Mac OS X assembler supports the -mmacos-version-min option.])]) | |
3992 | ;; | |
3993 | esac | |
3994 | ||
3995 | # Target CPU-specific assembler checks. | |
3996 | ||
0d6378a9 | 3997 | case "$target" in |
891f2090 | 3998 | aarch64*-*-*) |
3999 | gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,, | |
4000 | [-mabi=lp64], [.text],,,) | |
4001 | if test x$gcc_cv_as_aarch64_mabi = xyes; then | |
4002 | AC_DEFINE(HAVE_AS_MABI_OPTION, 1, | |
4003 | [Define if your assembler supports the -mabi option.]) | |
4004 | else | |
4005 | if test x$with_abi = xilp32; then | |
4006 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4007 | Upgrade the Assembler.]) | |
4008 | fi | |
4009 | if test x"$with_multilib_list" = xdefault; then | |
4010 | TM_MULTILIB_CONFIG=lp64 | |
4011 | else | |
4012 | aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'` | |
4013 | for aarch64_multilib in ${aarch64_multilibs}; do | |
4014 | case ${aarch64_multilib} in | |
4015 | ilp32) | |
4016 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4017 | Upgrade the Assembler.]) | |
4018 | ;; | |
4019 | *) | |
4020 | ;; | |
4021 | esac | |
4022 | done | |
4023 | fi | |
4024 | fi | |
d65d3062 | 4025 | # Check if we have binutils support for relocations types needed by -fpic |
4026 | gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,, | |
4027 | [ | |
4028 | .text | |
4029 | ldr x0, [[x2, #:gotpage_lo15:globalsym]] | |
4030 | ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1, | |
4031 | [Define if your assembler supports relocs needed by -fpic.])]) | |
559dff77 | 4032 | # Enable Branch Target Identification Mechanism and Return Address |
4033 | # Signing by default. | |
4034 | AC_ARG_ENABLE(standard-branch-protection, | |
4035 | [ | |
4036 | AS_HELP_STRING([--enable-standard-branch-protection], | |
4037 | [enable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4038 | AS_HELP_STRING([--disable-standard-branch-protection], | |
4039 | [disable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4040 | ], | |
4041 | [ | |
4042 | case $enableval in | |
4043 | yes) | |
4044 | tm_defines="${tm_defines} TARGET_ENABLE_BTI=1 TARGET_ENABLE_PAC_RET=1" | |
4045 | ;; | |
4046 | no) | |
4047 | ;; | |
4048 | *) | |
4049 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-standard-branch-protection.\ | |
4050 | Valid choices are 'yes' and 'no'.]) | |
4051 | ;; | |
4052 | esac | |
4053 | ], | |
4054 | []) | |
c71e113d | 4055 | # Enable default workaround for AArch64 Cortex-A53 erratum 835769. |
4056 | AC_ARG_ENABLE(fix-cortex-a53-835769, | |
4057 | [ | |
4058 | AS_HELP_STRING([--enable-fix-cortex-a53-835769], | |
4059 | [enable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4060 | AS_HELP_STRING([--disable-fix-cortex-a53-835769], | |
4061 | [disable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4062 | ], | |
4063 | [ | |
4064 | case $enableval in | |
4065 | yes) | |
4066 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1" | |
4067 | ;; | |
4068 | no) | |
4069 | ;; | |
4070 | *) | |
4071 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\ | |
4072 | Valid choices are 'yes' and 'no'.]) | |
4073 | ;; | |
4074 | ||
4075 | esac | |
4076 | ], | |
4077 | []) | |
3de2f3c9 | 4078 | # Enable default workaround for AArch64 Cortex-A53 erratum 843419. |
4079 | AC_ARG_ENABLE(fix-cortex-a53-843419, | |
4080 | [ | |
4081 | AS_HELP_STRING([--enable-fix-cortex-a53-843419], | |
4082 | [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4083 | AS_HELP_STRING([--disable-fix-cortex-a53-843419], | |
4084 | [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4085 | ], | |
4086 | [ | |
4087 | case $enableval in | |
4088 | yes) | |
4089 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" | |
4090 | ;; | |
4091 | no) | |
4092 | ;; | |
4093 | *) | |
4094 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ | |
4095 | Valid choices are 'yes' and 'no'.]) | |
4096 | ;; | |
4097 | ||
4098 | esac | |
4099 | ], | |
4100 | []) | |
891f2090 | 4101 | ;; |
4102 | ||
8626dbb9 | 4103 | # All TARGET_ABI_OSF targets. |
126b6848 | 4104 | alpha*-*-linux* | alpha*-*-*bsd*) |
6d6c1801 | 4105 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
4106 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
4107 | [ .set nomacro | |
8626dbb9 | 4108 | .text |
4109 | extbl $3, $2, $3 !lituse_bytoff!1 | |
4110 | ldq $2, a($29) !literal!1 | |
4111 | ldq $4, b($29) !literal!2 | |
4112 | ldq_u $3, 0($2) !lituse_base!1 | |
4113 | ldq $27, f($29) !literal!5 | |
4114 | jsr $26, ($27), f !lituse_jsr!5 | |
4115 | ldah $29, 0($26) !gpdisp!3 | |
4116 | lda $0, c($29) !gprel | |
4117 | ldah $1, d($29) !gprelhigh | |
4118 | lda $1, d($1) !gprellow | |
6d6c1801 | 4119 | lda $29, 0($29) !gpdisp!3],, |
4120 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
4121 | [Define if your assembler supports explicit relocations.])]) | |
592222c2 | 4122 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
4123 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
4124 | [ .set nomacro | |
4125 | .text | |
4126 | ldq $27, a($29) !literal!1 | |
4127 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
4128 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
4129 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
8626dbb9 | 4130 | ;; |
4c335027 | 4131 | |
fb51f994 | 4132 | avr-*-*) |
4133 | gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,, | |
4134 | [--mlink-relax], [.text],, | |
4135 | [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1, | |
4136 | [Define if your avr assembler supports --mlink-relax option.])]) | |
4137 | ||
4138 | gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,, | |
4139 | [-mrmw], [.text],, | |
4140 | [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1, | |
4141 | [Define if your avr assembler supports -mrmw option.])]) | |
02bfce13 | 4142 | |
056f86e8 | 4143 | gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction], |
4144 | gcc_cv_as_avr_mgccisr,, | |
4145 | [-mgcc-isr], [.text | |
4146 | __gcc_isr 1 | |
4147 | __gcc_isr 2 | |
4148 | __gcc_isr 0,r24 | |
4149 | ],, | |
4150 | [AC_DEFINE(HAVE_AS_AVR_MGCCISR_OPTION, 1, | |
4151 | [Define if your avr assembler supports -mgcc-isr option.])]) | |
4152 | ||
02bfce13 | 4153 | # Check how default linker description file implements .rodata for |
4154 | # avrxmega3 (PR21472). avr-gcc assumes .rodata is *not* loaded to | |
4155 | # RAM so avr-gcc skips __do_copy_data for .rodata objects. | |
4156 | AC_MSG_CHECKING(binutils for avrxmega3 .rodata support) | |
4157 | cat > conftest.s <<EOF | |
4158 | .section .rodata,"a",@progbits | |
4159 | .global xxvaryy | |
4160 | ;; avr-nm should print "... R xxvaryy", not "... D xxvaryy". | |
4161 | xxvaryy: | |
4162 | .word 1 | |
4163 | EOF | |
4164 | rm -f conftest.nm | |
4165 | AC_TRY_COMMAND([$gcc_cv_as -mmcu=avrxmega3 conftest.s -o conftest.o]) | |
4166 | AC_TRY_COMMAND([$gcc_cv_ld -mavrxmega3 conftest.o -o conftest.elf]) | |
4167 | AC_TRY_COMMAND([$gcc_cv_nm conftest.elf > conftest.nm]) | |
d557a46f | 4168 | if test -s conftest.nm |
02bfce13 | 4169 | then |
4170 | if grep ' R xxvaryy' conftest.nm > /dev/null; then | |
4171 | AC_MSG_RESULT(yes) | |
d557a46f | 4172 | AC_DEFINE(HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH, 1, |
4173 | [Define if your default avr linker script for avrxmega3 leaves .rodata in flash.]) | |
02bfce13 | 4174 | else |
4175 | AC_MSG_RESULT(no: avrxmega3 .rodata located in RAM) | |
4176 | echo "$as_me: nm output was" >&AS_MESSAGE_LOG_FD | |
4177 | cat conftest.nm >&AS_MESSAGE_LOG_FD | |
02bfce13 | 4178 | avr_ld_ver="`$gcc_cv_ld -v | sed -e 's:^.* ::'`" |
d557a46f | 4179 | AC_MSG_WARN([[support for avrxmega3 .rodata in flash needs Binutils 2.29 or higher (have $avr_ld_ver)]]) |
02bfce13 | 4180 | fi |
4181 | else | |
4182 | AC_MSG_RESULT(test failed) | |
4183 | echo "$as_me: failed program was" >&AS_MESSAGE_LOG_FD | |
4184 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
d557a46f | 4185 | AC_MSG_WARN([[see `config.log' for details]]) |
02bfce13 | 4186 | fi |
d557a46f | 4187 | rm -f conftest.s conftest.o conftest.elf conftest.nm |
fb51f994 | 4188 | ;; |
4189 | ||
ce4d6134 | 4190 | cris-*-*) |
4191 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
4192 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
4193 | [-no-mul-bug-abort], [.text],, | |
4194 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
4195 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
4196 | ;; | |
4197 | ||
6d6c1801 | 4198 | sparc*-*-*) |
6d6c1801 | 4199 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, |
4200 | [-relax], [.text],, | |
4201 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
4202 | [Define if your assembler supports -relax option.])]) | |
4203 | ||
2f1e7d0b | 4204 | gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs], |
4205 | gcc_cv_as_sparc_gotdata_op,, | |
4206 | [-K PIC], | |
4207 | [.text | |
d958c180 | 4208 | .align 4 |
2f1e7d0b | 4209 | foo: |
4210 | nop | |
4211 | bar: | |
4212 | sethi %gdop_hix22(foo), %g1 | |
4213 | xor %g1, %gdop_lox10(foo), %g1 | |
4214 | ld [[%l7 + %g1]], %g2, %gdop(foo)], | |
4215 | [if test x$gcc_cv_ld != x \ | |
dd84455f | 4216 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then |
dc360156 | 4217 | if test x$gcc_cv_objdump != x; then |
4218 | if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ | |
4219 | | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then | |
dd84455f | 4220 | gcc_cv_as_sparc_gotdata_op=no |
dc360156 | 4221 | else |
dd84455f | 4222 | gcc_cv_as_sparc_gotdata_op=yes |
dd84455f | 4223 | fi |
dd84455f | 4224 | fi |
2f1e7d0b | 4225 | fi |
4226 | rm -f conftest], | |
4227 | [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1, | |
4228 | [Define if your assembler and linker support GOTDATA_OP relocs.])]) | |
4229 | ||
6d6c1801 | 4230 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], |
4231 | gcc_cv_as_sparc_ua_pcrel,, | |
4232 | [-K PIC], | |
4233 | [.text | |
4234 | foo: | |
4235 | nop | |
4236 | .data | |
4237 | .align 4 | |
4238 | .byte 0 | |
4239 | .uaword %r_disp32(foo)], | |
4240 | [if test x$gcc_cv_ld != x \ | |
4241 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
4242 | gcc_cv_as_sparc_ua_pcrel=yes | |
4243 | fi | |
4244 | rm -f conftest], | |
4245 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
66e333b1 | 4246 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
e715c863 | 4247 | |
6d6c1801 | 4248 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
4249 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
4250 | [-K PIC], | |
4251 | [.data | |
4252 | .align 4 | |
4253 | .byte 0x31 | |
4254 | .uaword %r_disp32(foo) | |
4255 | .byte 0x32, 0x33, 0x34 | |
4256 | .global foo | |
4257 | .hidden foo | |
4258 | foo: | |
4259 | .skip 4], | |
4260 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4261 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
4262 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
4263 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
4264 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
4265 | | grep 'DISP32' > /dev/null 2>&1; then | |
4266 | : | |
5a49bf3e | 4267 | else |
6d6c1801 | 4268 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
0569c094 | 4269 | fi |
6d6c1801 | 4270 | fi |
4271 | rm -f conftest], | |
4272 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
4273 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
4274 | ]) # unaligned pcrel relocs | |
4275 | ||
4276 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
4277 | gcc_cv_as_sparc_offsetable_lo10,, | |
4278 | [-xarch=v9], | |
4279 | [.text | |
4280 | or %g1, %lo(ab) + 12, %g1 | |
4281 | or %g1, %lo(ab + 12), %g1], | |
4282 | [if test x$gcc_cv_objdump != x \ | |
7908b1a1 | 4283 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
6d6c1801 | 4284 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
19f7ae9a | 4285 | gcc_cv_as_sparc_offsetable_lo10=yes |
6d6c1801 | 4286 | fi], |
4287 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
4288 | [Define if your assembler supports offsetable %lo().])]) | |
0468cf8f | 4289 | |
4290 | gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions], | |
4291 | gcc_cv_as_sparc_fmaf,, | |
4292 | [-xarch=v9d], | |
4293 | [.text | |
d7112989 | 4294 | .register %g2, #scratch |
4295 | .register %g3, #scratch | |
0468cf8f | 4296 | .align 4 |
4297 | fmaddd %f0, %f2, %f4, %f6 | |
4298 | addxccc %g1, %g2, %g3 | |
4299 | fsrl32 %f2, %f4, %f8 | |
4300 | fnaddd %f10, %f12, %f14],, | |
4301 | [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1, | |
4302 | [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])]) | |
6c940e8d | 4303 | |
4304 | gcc_GAS_CHECK_FEATURE([SPARC4 instructions], | |
4305 | gcc_cv_as_sparc_sparc4,, | |
4306 | [-xarch=sparc4], | |
4307 | [.text | |
4308 | .register %g2, #scratch | |
4309 | .register %g3, #scratch | |
4310 | .align 4 | |
4311 | cxbe %g2, %g3, 1f | |
4312 | 1: cwbneg %g2, %g3, 1f | |
4313 | 1: sha1 | |
4314 | md5 | |
4315 | aes_kexpand0 %f4, %f6, %f8 | |
4316 | des_round %f38, %f40, %f42, %f44 | |
4317 | camellia_f %f54, %f56, %f58, %f60 | |
4318 | kasumi_fi_xor %f46, %f48, %f50, %f52],, | |
4319 | [AC_DEFINE(HAVE_AS_SPARC4, 1, | |
4320 | [Define if your assembler supports SPARC4 instructions.])]) | |
cbd3655d | 4321 | |
7e1786b2 | 4322 | gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions], |
4323 | gcc_cv_as_sparc_sparc5,, | |
4324 | [-xarch=sparc5], | |
4325 | [.text | |
4326 | .register %g2, #scratch | |
4327 | .register %g3, #scratch | |
4328 | .align 4 | |
4329 | subxc %g1, %g2, %g3 | |
4330 | fpadd8 %f0, %f2, %f4],, | |
4331 | [AC_DEFINE(HAVE_AS_SPARC5_VIS4, 1, | |
4332 | [Define if your assembler supports SPARC5 and VIS 4.0 instructions.])]) | |
4333 | ||
95f09db7 | 4334 | gcc_GAS_CHECK_FEATURE([SPARC6 instructions], |
4335 | gcc_cv_as_sparc_sparc6,, | |
4336 | [-xarch=sparc6], | |
4337 | [.text | |
4338 | .register %g2, #scratch | |
4339 | .register %g3, #scratch | |
4340 | .align 4 | |
4341 | rd %entropy, %g1 | |
4342 | fpsll64x %f0, %f2, %f4],, | |
4343 | [AC_DEFINE(HAVE_AS_SPARC6, 1, | |
4344 | [Define if your assembler supports SPARC6 instructions.])]) | |
4345 | ||
cbd3655d | 4346 | gcc_GAS_CHECK_FEATURE([LEON instructions], |
4347 | gcc_cv_as_sparc_leon,, | |
4348 | [-Aleon], | |
4349 | [.text | |
4350 | .register %g2, #scratch | |
4351 | .register %g3, #scratch | |
4352 | .align 4 | |
4353 | smac %g2, %g3, %g1 | |
4354 | umac %g2, %g3, %g1 | |
51494e08 | 4355 | casa [[%g2]] 0xb, %g3, %g1],, |
cbd3655d | 4356 | [AC_DEFINE(HAVE_AS_LEON, 1, |
4357 | [Define if your assembler supports LEON instructions.])]) | |
d300bd48 | 4358 | ;; |
4359 | ||
4360 | changequote(,)dnl | |
96b9fbc1 | 4361 | i[34567]86-*-* | x86_64-*-*) |
d300bd48 | 4362 | changequote([,])dnl |
dd9d9ac2 | 4363 | case $target_os in |
4364 | cygwin*) | |
4365 | # Full C++ conformance when using a shared libstdc++-v3 requires some | |
4366 | # support from the Cygwin DLL, which in more recent versions exports | |
4367 | # wrappers to aid in interposing and redirecting operators new, delete, | |
4368 | # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we | |
4369 | # are configuring for a version of Cygwin that exports the wrappers. | |
8f3115a2 | 4370 | if test x$host = x$target && test x$host_cpu = xi686; then |
dd9d9ac2 | 4371 | AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) |
4372 | else | |
4373 | # Can't check presence of libc functions during cross-compile, so | |
4374 | # we just have to assume we're building for an up-to-date target. | |
4375 | gcc_ac_cygwin_dll_wrappers=yes | |
4376 | fi | |
4377 | AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, | |
4378 | [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], | |
4379 | [Define if you want to generate code by default that assumes that the | |
4380 | Cygwin DLL exports wrappers to support libstdc++ function replacement.]) | |
4381 | esac | |
1f10d387 | 4382 | case $target_os in |
6905db52 | 4383 | cygwin* | pe | mingw32*) |
7b897de3 | 4384 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
4385 | # definition is used unconditionally to initialise the default state of | |
4386 | # the target option variable that governs usage of the feature. | |
4387 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
4388 | [2,19,52],,[.comm foo,1,32]) | |
4389 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
4390 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
4391 | [Define if your assembler supports specifying the alignment | |
4392 | of objects allocated using the GAS .comm command.]) | |
1f10d387 | 4393 | # Used for DWARF 2 in PE |
4394 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
4395 | gcc_cv_as_ix86_pe_secrel32, | |
4396 | [2,15,91],, | |
4397 | [.text | |
4398 | foo: nop | |
4399 | .data | |
4400 | .secrel32 foo], | |
4401 | [if test x$gcc_cv_ld != x \ | |
4402 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
4403 | gcc_cv_as_ix86_pe_secrel32=yes | |
4404 | fi | |
4405 | rm -f conftest], | |
4406 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
4407 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
4d992eb6 | 4408 | # Test if the assembler supports the extended form of the .section |
4409 | # directive that specifies section alignment. LTO support uses this, | |
4410 | # but normally only after installation, so we warn but don't fail the | |
4411 | # configure if LTO is enabled but the assembler does not support it. | |
4412 | gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align, | |
4413 | [2,20,1],-fatal-warnings,[.section lto_test,"dr0"]) | |
4414 | if test x$gcc_cv_as_section_has_align != xyes; then | |
4415 | case ",$enable_languages," in | |
4416 | *,lto,*) | |
4417 | AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.]) | |
4418 | ;; | |
4419 | esac | |
4420 | fi | |
1f10d387 | 4421 | ;; |
4422 | esac | |
4423 | ||
9bc1196f | 4424 | gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,, |
4425 | [-xbrace_comment=no], [.text],, | |
4426 | [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1, | |
4427 | [Define if your assembler supports -xbrace_comment option.])]) | |
4428 | ||
6d6c1801 | 4429 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
6cc62ffa | 4430 | gcc_cv_as_ix86_filds,,, |
b3f7a353 | 4431 | [filds (%ebp); fists (%ebp)],, |
6cc62ffa | 4432 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, |
4433 | [Define if your assembler uses filds and fists mnemonics.])]) | |
4434 | ||
4435 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
4436 | gcc_cv_as_ix86_fildq,,, | |
b3f7a353 | 4437 | [fildq (%ebp); fistpq (%ebp)],, |
6cc62ffa | 4438 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, |
4439 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
6d6c1801 | 4440 | |
65cce9df | 4441 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
4442 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
4443 | [cmovl.l %edx, %eax],, | |
4444 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
4445 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
4446 | ||
97f2677a | 4447 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
4448 | gcc_cv_as_ix86_ffreep,,, | |
4449 | [ffreep %st(1)],, | |
4450 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
4451 | [Define if your assembler supports the ffreep mnemonic.])]) | |
4452 | ||
05157f42 | 4453 | gcc_GAS_CHECK_FEATURE([.quad directive], |
4454 | gcc_cv_as_ix86_quad,,, | |
4455 | [.quad 0],, | |
4456 | [AC_DEFINE(HAVE_AS_IX86_QUAD, 1, | |
4457 | [Define if your assembler supports the .quad directive.])]) | |
4458 | ||
735630ef | 4459 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
4460 | gcc_cv_as_ix86_sahf,,, | |
5a079549 | 4461 | [.code64 |
4462 | sahf],, | |
735630ef | 4463 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, |
5a079549 | 4464 | [Define if your assembler supports the sahf mnemonic in 64bit mode.])]) |
735630ef | 4465 | |
9e2820ab | 4466 | gcc_GAS_CHECK_FEATURE([interunit movq mnemonic], |
4467 | gcc_cv_as_ix86_interunit_movq,,, | |
4468 | [.code64 | |
4469 | movq %mm0, %rax | |
f17a6c34 | 4470 | movq %rax, %xmm0]) |
4471 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ, | |
4472 | [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`], | |
4473 | [Define if your assembler supports interunit movq mnemonic.]) | |
9e2820ab | 4474 | |
7f738025 | 4475 | gcc_GAS_CHECK_FEATURE([hle prefixes], |
4476 | gcc_cv_as_ix86_hle,,, | |
92ff811e | 4477 | [lock xacquire cmpxchg %esi, (%ecx)],, |
7f738025 | 4478 | [AC_DEFINE(HAVE_AS_IX86_HLE, 1, |
4479 | [Define if your assembler supports HLE prefixes.])]) | |
4480 | ||
5a5324bc | 4481 | gcc_GAS_CHECK_FEATURE([swap suffix], |
4482 | gcc_cv_as_ix86_swap,,, | |
4483 | [movl.s %esp, %ebp],, | |
4484 | [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, | |
4485 | [Define if your assembler supports the swap suffix.])]) | |
4486 | ||
95792072 | 4487 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
4488 | gcc_cv_as_ix86_diff_sect_delta,,, | |
4489 | [.section .rodata | |
4490 | .L1: | |
4491 | .long .L2-.L1 | |
4492 | .long .L3-.L1 | |
4493 | .text | |
4494 | .L3: nop | |
4495 | .L2: nop],, | |
4496 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
4497 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
4498 | ||
fa1a7502 | 4499 | gcc_GAS_CHECK_FEATURE([rep and lock prefix], |
4500 | gcc_cv_as_ix86_rep_lock_prefix,,, | |
4501 | [rep movsl | |
948e3eac | 4502 | rep ret |
4503 | rep nop | |
4504 | rep bsf %ecx, %eax | |
4505 | rep bsr %ecx, %eax | |
44ddfc4c | 4506 | lock addl %edi, (%eax,%esi) |
66d2fcdf | 4507 | lock orl $0, (%esp)],, |
4508 | [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1, | |
4509 | [Define if the assembler supports 'rep <insn>, lock <insn>'.])]) | |
fa1a7502 | 4510 | |
e786f3a4 | 4511 | gcc_GAS_CHECK_FEATURE([ud2 mnemonic], |
4512 | gcc_cv_as_ix86_ud2,,, | |
4513 | [ud2],, | |
4514 | [AC_DEFINE(HAVE_AS_IX86_UD2, 1, | |
4515 | [Define if your assembler supports the 'ud2' mnemonic.])]) | |
4516 | ||
a55c79f0 | 4517 | # Enforce 32-bit output with gas and gld. |
4518 | if test x$gas = xyes; then | |
4519 | as_ix86_gas_32_opt="--32" | |
4520 | fi | |
4521 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4522 | if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then | |
4523 | ld_ix86_gld_32_opt="-melf_i386_sol2" | |
4524 | else | |
4525 | ld_ix86_gld_32_opt="-melf_i386" | |
4526 | fi | |
4527 | fi | |
4528 | ||
04a4c50e | 4529 | gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc], |
a55c79f0 | 4530 | gcc_cv_as_ix86_tlsgdplt,, |
4531 | [$as_ix86_gas_32_opt], | |
31d2f7ca | 4532 | [call tls_gd@tlsgdplt], |
4533 | [if test x$gcc_cv_ld != x \ | |
a55c79f0 | 4534 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
31d2f7ca | 4535 | gcc_cv_as_ix86_tlsgdplt=yes |
4536 | fi | |
4537 | rm -f conftest], | |
04a4c50e | 4538 | [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1, |
31d2f7ca | 4539 | [Define if your assembler and linker support @tlsgdplt.])]) |
04a4c50e | 4540 | |
fcc29059 | 4541 | conftest_s=' |
4542 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4543 | tls_ld: | |
4544 | .section .text,"ax",@progbits | |
4545 | call tls_ld@tlsldmplt' | |
a55c79f0 | 4546 | |
04a4c50e | 4547 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc], |
a55c79f0 | 4548 | gcc_cv_as_ix86_tlsldmplt,, |
4549 | [$as_ix86_gas_32_opt], | |
fcc29059 | 4550 | [$conftest_s], |
31d2f7ca | 4551 | [if test x$gcc_cv_ld != x \ |
a55c79f0 | 4552 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
31d2f7ca | 4553 | gcc_cv_as_ix86_tlsldmplt=yes |
4554 | fi | |
e727a9cd | 4555 | rm -f conftest]) |
4556 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT, | |
4557 | [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`], | |
4558 | [Define to 1 if your assembler and linker support @tlsldmplt.]) | |
4559 | ||
e727a9cd | 4560 | conftest_s=' |
4561 | .section .text,"ax",@progbits | |
4562 | .globl _start | |
4563 | .type _start, @function | |
4564 | _start: | |
4565 | leal value@tlsldm(%ebx), %eax | |
4566 | call ___tls_get_addr@plt | |
4567 | ||
4568 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4569 | .type value, @object | |
4570 | value:' | |
4571 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], | |
4572 | gcc_cv_as_ix86_tlsldm,, | |
eaf77c2b | 4573 | [$as_ix86_gas_32_opt], |
e727a9cd | 4574 | [$conftest_s], |
4575 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
eaf77c2b | 4576 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then |
e727a9cd | 4577 | if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ |
4578 | || dis conftest 2>/dev/null | grep nop > /dev/null; then | |
4579 | gcc_cv_as_ix86_tlsldm=yes | |
4580 | fi | |
4581 | fi | |
4582 | rm -f conftest]) | |
4583 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM, | |
4584 | [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], | |
4585 | [Define to 1 if your assembler and linker support @tlsldm.]) | |
04a4c50e | 4586 | |
6fb2f181 | 4587 | conftest_s=' |
4588 | .data | |
4589 | bar: | |
4590 | .byte 1 | |
4591 | .text | |
4592 | .global _start | |
4593 | _start: | |
4594 | cmpl $0, bar@GOT | |
4595 | jmp *_start@GOT' | |
4596 | gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], | |
4597 | gcc_cv_as_ix86_got32x,, | |
eaf77c2b | 4598 | [$as_ix86_gas_32_opt], |
6fb2f181 | 4599 | [$conftest_s], |
4600 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4601 | && test x$gcc_cv_readelf != x \ | |
4602 | && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ | |
4603 | | grep R_386_GOT32X > /dev/null 2>&1 \ | |
eaf77c2b | 4604 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then |
6fb2f181 | 4605 | if $gcc_cv_objdump -dw conftest 2>&1 \ |
4606 | | grep 0xffffff > /dev/null 2>&1; then | |
4607 | gcc_cv_as_ix86_got32x=no | |
4608 | else | |
4609 | gcc_cv_as_ix86_got32x=yes | |
4610 | fi | |
4611 | fi | |
4612 | rm -f conftest]) | |
4613 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, | |
4614 | [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], | |
4615 | [Define 0/1 if your assembler and linker support @GOT.]) | |
a55c79f0 | 4616 | |
4617 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
4618 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0], | |
4619 | [$as_ix86_gas_32_opt], | |
4620 | [ .text | |
4621 | .L0: | |
4622 | nop | |
4623 | .data | |
4624 | .long .L0@GOTOFF]) | |
4625 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
4626 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
4627 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
4628 | ||
c7f16cfa | 4629 | conftest_s=' |
4630 | .section .text,"ax",@progbits | |
4631 | .globl _start | |
4632 | .type _start, @function | |
4633 | _start: | |
4634 | leal ld@tlsldm(%ecx), %eax | |
4635 | call *___tls_get_addr@GOT(%ecx) | |
4636 | leal gd@tlsgd(%ecx), %eax | |
4637 | call *___tls_get_addr@GOT(%ecx) | |
4638 | ||
4639 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4640 | .type ld, @object | |
4641 | ld: | |
4642 | .byte 0 | |
4643 | .globl gd | |
4644 | .type gd, @object | |
4645 | gd: | |
4646 | .byte 0' | |
4647 | gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT], | |
4648 | gcc_cv_as_ix86_tls_get_addr_via_got,, | |
4649 | [$as_ix86_gas_32_opt], | |
4650 | [$conftest_s], | |
4651 | [if test x$gcc_cv_ld != x \ | |
4652 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then | |
4653 | gcc_cv_as_ix86_tls_get_addr_via_got=yes | |
4654 | fi | |
4655 | rm -f conftest]) | |
4656 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLS_GET_ADDR_GOT, | |
4657 | [`if test x"$gcc_cv_as_ix86_tls_get_addr_via_got" = xyes; then echo 1; else echo 0; fi`], | |
4658 | [Define 0/1 if your assembler and linker support calling ___tls_get_addr via GOT.]) | |
d300bd48 | 4659 | ;; |
0cc4b4a2 | 4660 | |
4661 | ia64*-*-*) | |
6d6c1801 | 4662 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
4663 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
13f3d840 | 4664 | [ .text |
0cc4b4a2 | 4665 | addl r15 = @ltoffx(x#), gp |
4666 | ;; | |
c49718af | 4667 | ld8.mov r16 = [[r15]], x# |
4668 | ],, | |
6d6c1801 | 4669 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
4670 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
4671 | ||
0cc4b4a2 | 4672 | ;; |
6d6c1801 | 4673 | |
24880e5b | 4674 | powerpc*-*-*) |
2f6cdf65 | 4675 | |
6d6c1801 | 4676 | case $target in |
cd0c3d24 | 4677 | *-*-darwin*) |
4678 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
4679 | gcc_cv_as_machine_directive,,, | |
4680 | [ .machine ppc7400]) | |
4681 | if test x$gcc_cv_as_machine_directive != xyes; then | |
4682 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
4683 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
4684 | test x$build = x$target && exit 1 | |
4685 | fi | |
2f6cdf65 | 4686 | ;; |
4687 | esac | |
4688 | ||
4689 | case $target in | |
4690 | *-*-aix*) conftest_s=' .machine "pwr5" | |
4691 | .csect .text[[PR]] | |
4692 | mfcr 3,128';; | |
4693 | *-*-darwin*) conftest_s=' .text | |
3ba829c3 | 4694 | mfcr r3,128';; |
ce1a729a | 4695 | *) conftest_s=' .machine power4 |
4adb2d8e | 4696 | .text |
3ba829c3 | 4697 | mfcr 3,128';; |
6d6c1801 | 4698 | esac |
6d6c1801 | 4699 | |
4700 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
4701 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
4702 | [$conftest_s],, | |
4703 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
4704 | [Define if your assembler supports mfcr field.])]) | |
a8bb341c | 4705 | |
197f58fa | 4706 | case $target in |
4707 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
4708 | LCF..0: | |
4709 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
4710 | *-*-darwin*) | |
4711 | conftest_s=' .text | |
4712 | LCF0: | |
4713 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
4714 | *) conftest_s=' .text | |
4715 | .LCF0: | |
4716 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
4717 | esac | |
4718 | ||
34fe62ca | 4719 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
4720 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
4721 | [$conftest_s],, | |
4722 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
4723 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
4724 | ||
94f7a54b | 4725 | case $target in |
4726 | *-*-aix*) conftest_s=' .machine "pwr7" | |
4727 | .csect .text[[PR]] | |
4728 | lxvd2x 1,2,3';; | |
4729 | *) conftest_s=' .machine power7 | |
4730 | .text | |
4731 | lxvd2x 1,2,3';; | |
4732 | esac | |
4733 | ||
4734 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
9c878e1b | 4735 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
94f7a54b | 4736 | [$conftest_s],, |
4737 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
4738 | [Define if your assembler supports VSX instructions.])]) | |
4739 | ||
6c7d78e4 | 4740 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
4741 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
4742 | [.gnu_attribute 4,1],, | |
4743 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4744 | [Define if your assembler supports .gnu_attribute.])]) | |
d46ea878 | 4745 | |
4746 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
4747 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
4748 | [ bl __tls_get_addr(x@tlsgd)],, | |
4749 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
4750 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
1a9c54a3 | 4751 | |
4dcc3863 | 4752 | gcc_GAS_CHECK_FEATURE([prologue entry point marker support], |
4753 | gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings, | |
4754 | [ .reloc .,R_PPC64_ENTRY; nop],, | |
4755 | [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1, | |
4756 | [Define if your assembler supports the R_PPC64_ENTRY relocation.])]) | |
4757 | ||
5969e425 | 4758 | gcc_GAS_CHECK_FEATURE([plt sequence marker support], |
4759 | gcc_cv_as_powerpc_pltseq_markers, [2,31,0],-a32 --fatal-warnings, | |
4760 | [ .reloc .,R_PPC_PLTSEQ; nop],, | |
4761 | [AC_DEFINE(HAVE_AS_PLTSEQ, 1, | |
4762 | [Define if your assembler supports R_PPC*_PLTSEQ relocations.])]) | |
4763 | ||
1a9c54a3 | 4764 | case $target in |
4765 | *-*-aix*) | |
36302ce3 | 4766 | gcc_GAS_CHECK_FEATURE([AIX .ref support], |
e2f5cc8a | 4767 | gcc_cv_as_aix_ref, [2,21,0],, |
1a9c54a3 | 4768 | [ .csect stuff[[rw]] |
4769 | stuff: | |
4770 | .long 1 | |
4771 | .extern sym | |
4772 | .ref sym | |
4773 | ],, | |
4774 | [AC_DEFINE(HAVE_AS_REF, 1, | |
4775 | [Define if your assembler supports .ref])]) | |
d6723bcd | 4776 | |
36302ce3 | 4777 | gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support], |
67429b36 | 4778 | gcc_cv_as_aix_dwloc, [2,21,0],, |
36302ce3 | 4779 | [ .dwsect 0xA0000 |
4780 | Lframe..0: | |
d6cef2f9 | 4781 | .vbyte 4,Lframe..0 |
67429b36 | 4782 | ],, |
4783 | [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1, | |
36302ce3 | 4784 | [Define if your assembler supports AIX debug frame section label reference.])]) |
67429b36 | 4785 | ;; |
4786 | esac | |
4787 | ;; | |
4788 | ||
6d6c1801 | 4789 | mips*-*-*) |
4790 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
4791 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
4792 | [ lw $4,%gp_rel(foo)($4)],, | |
4793 | [if test x$target_cpu_default = x | |
4794 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
4795 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
4796 | fi]) | |
67429b36 | 4797 | |
f863d3e3 | 4798 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
4799 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
4800 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
4801 | [Define if the assembler understands -mno-shared.])]) | |
0fd6d684 | 4802 | |
4803 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4804 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
4805 | [.gnu_attribute 4,1],, | |
4806 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4807 | [Define if your assembler supports .gnu_attribute.])]) | |
c9eabb6d | 4808 | |
f2b55aea | 4809 | gcc_GAS_CHECK_FEATURE([.module support], |
d745b466 | 4810 | gcc_cv_as_mips_dot_module,,[-32], |
4811 | [.module mips2 | |
4812 | .module fp=xx],, | |
f2b55aea | 4813 | [AC_DEFINE(HAVE_AS_DOT_MODULE, 1, |
4814 | [Define if your assembler supports .module.])]) | |
4815 | if test x$gcc_cv_as_mips_dot_module = xno \ | |
4816 | && test x$with_fp_32 != x; then | |
4817 | AC_MSG_ERROR( | |
4818 | [Requesting --with-fp-32= requires assembler support for .module.]) | |
4819 | fi | |
4820 | ||
ff9c1bc1 | 4821 | gcc_GAS_CHECK_FEATURE([.micromips support], |
bcba791d | 4822 | gcc_cv_as_micromips_support,,[--fatal-warnings], |
ff9c1bc1 | 4823 | [.set micromips],, |
4824 | [AC_DEFINE(HAVE_GAS_MICROMIPS, 1, | |
4825 | [Define if your assembler supports the .set micromips directive])]) | |
4826 | ||
c9eabb6d | 4827 | gcc_GAS_CHECK_FEATURE([.dtprelword support], |
4828 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
4829 | [.section .tdata,"awT",@progbits | |
4830 | x: | |
4831 | .word 2 | |
4832 | .text | |
4833 | .dtprelword x+0x8000],, | |
4834 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
4835 | [Define if your assembler supports .dtprelword.])]) | |
ca30e0b9 | 4836 | |
3e60fdb7 | 4837 | gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support], |
4838 | gcc_cv_as_mips_dspr1_mult,,, | |
4839 | [ .set mips32r2 | |
4840 | .set nodspr2 | |
4841 | .set dsp | |
4842 | madd $ac3,$4,$5 | |
4843 | maddu $ac3,$4,$5 | |
4844 | msub $ac3,$4,$5 | |
4845 | msubu $ac3,$4,$5 | |
4846 | mult $ac3,$4,$5 | |
4847 | multu $ac3,$4,$5],, | |
4848 | [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1, | |
4849 | [Define if your assembler supports DSPR1 mult.])]) | |
4850 | ||
ca30e0b9 | 4851 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) |
4852 | gcc_cv_as_ld_jalr_reloc=no | |
4853 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
4854 | if test $in_tree_ld = yes ; then | |
4855 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
4856 | && test $in_tree_ld_is_elf = yes; then | |
4857 | gcc_cv_as_ld_jalr_reloc=yes | |
4858 | fi | |
4859 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
4860 | echo ' .ent x' > conftest.s | |
aab5ced3 | 4861 | echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s |
4862 | echo ' lw $25,%call16(y)($28)' >> conftest.s | |
ca30e0b9 | 4863 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s |
4864 | echo '1: jalr $25' >> conftest.s | |
4865 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
4866 | echo '1: jalr $25' >> conftest.s | |
4867 | echo ' .end x' >> conftest.s | |
4868 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
4869 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
b1383b01 | 4870 | if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \ |
4871 | && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then | |
ca30e0b9 | 4872 | gcc_cv_as_ld_jalr_reloc=yes |
4873 | fi | |
4874 | fi | |
4875 | rm -f conftest.* | |
4876 | fi | |
4877 | fi | |
4878 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
4879 | if test x$target_cpu_default = x; then | |
4880 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
4881 | else | |
4882 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
4883 | fi | |
4884 | fi | |
4885 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
c4cf26ad | 4886 | |
4887 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
4888 | [gcc_cv_ld_mips_personality_relaxation], | |
4889 | [gcc_cv_ld_mips_personality_relaxation=no | |
4890 | if test $in_tree_ld = yes ; then | |
4891 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
4892 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
4893 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
4894 | gcc_cv_ld_mips_personality_relaxation=yes | |
4895 | fi | |
4896 | elif test x$gcc_cv_as != x \ | |
4897 | -a x$gcc_cv_ld != x \ | |
4898 | -a x$gcc_cv_readelf != x ; then | |
4899 | cat > conftest.s <<EOF | |
4900 | .cfi_startproc | |
4901 | .cfi_personality 0x80,indirect_ptr | |
4902 | .ent test | |
4903 | test: | |
4904 | nop | |
4905 | .end test | |
4906 | .cfi_endproc | |
4907 | ||
4908 | .section .data,"aw",@progbits | |
4909 | indirect_ptr: | |
4910 | .dc.a personality | |
4911 | EOF | |
4912 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
4913 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
4914 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
4915 | | grep TEXTREL > /dev/null 2>&1; then | |
4916 | : | |
4917 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
4918 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
4919 | : | |
4920 | else | |
4921 | gcc_cv_ld_mips_personality_relaxation=yes | |
4922 | fi | |
4923 | fi | |
4924 | fi | |
4925 | rm -f conftest.s conftest.o conftest]) | |
4926 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
4927 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
4928 | [Define if your linker can relax absolute .eh_frame personality | |
4929 | pointers into PC-relative form.]) | |
4930 | fi | |
0bd32132 | 4931 | |
4932 | gcc_GAS_CHECK_FEATURE([-mnan= support], | |
4933 | gcc_cv_as_mips_nan,, | |
4934 | [-mnan=2008],,, | |
4935 | [AC_DEFINE(HAVE_AS_NAN, 1, | |
4936 | [Define if the assembler understands -mnan=.])]) | |
4937 | if test x$gcc_cv_as_mips_nan = xno \ | |
4938 | && test x$with_nan != x; then | |
4939 | AC_MSG_ERROR( | |
4940 | [Requesting --with-nan= requires assembler support for -mnan=]) | |
4941 | fi | |
c8aeaa6d | 4942 | ;; |
93b27baa | 4943 | riscv*-*-*) |
4944 | gcc_GAS_CHECK_FEATURE([.attribute support], | |
4945 | gcc_cv_as_riscv_attribute, [2,32,0],, | |
4946 | [.attribute stack_align,4],, | |
4947 | [AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1, | |
4948 | [Define if your assembler supports .attribute.])]) | |
4949 | ;; | |
6b7cfb9c | 4950 | s390*-*-*) |
4951 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4952 | gcc_cv_as_s390_gnu_attribute, [2,18,0],, | |
4953 | [.gnu_attribute 8,1],, | |
4954 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4955 | [Define if your assembler supports .gnu_attribute.])]) | |
7a0cee35 | 4956 | gcc_GAS_CHECK_FEATURE([.machine and .machinemode support], |
4957 | gcc_cv_as_s390_machine_machinemode, [2,24,0],, | |
4958 | [ .machinemode push | |
4959 | .machinemode pop | |
4960 | .machine push | |
4961 | .machine pop],, | |
4962 | [AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1, | |
4963 | [Define if your assembler supports .machine and .machinemode.])]) | |
4964 | gcc_GAS_CHECK_FEATURE([architecture modifiers support], | |
4965 | gcc_cv_as_s390_architecture_modifiers, [2,26,0],, | |
4966 | [ .machine z13+vx ],, | |
4967 | [AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1, | |
4968 | [Define if your assembler supports architecture modifiers.])]) | |
f0075e6e | 4969 | gcc_GAS_CHECK_FEATURE([vector load/store alignment hints], |
4970 | gcc_cv_as_s390_vector_loadstore_alignment_hints, [2,31,0],, | |
4971 | [ vl %v24,0(%r15),3 ],, | |
4972 | [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS, 1, | |
4973 | [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument.])]) | |
4974 | ||
6b7cfb9c | 4975 | ;; |
c8aeaa6d | 4976 | esac |
4977 | ||
4978 | # Mips and HP-UX need the GNU assembler. | |
4979 | # Linux on IA64 might be able to use the Intel assembler. | |
6d6c1801 | 4980 | |
c8aeaa6d | 4981 | case "$target" in |
4982 | mips*-*-* | *-*-hpux* ) | |
6e930e6c | 4983 | if test x$gas_flag = xyes \ |
4984 | || test x"$host" != x"$build" \ | |
4985 | || test ! -x "$gcc_cv_as" \ | |
4986 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
4987 | : | |
4988 | else | |
4989 | echo "*** This configuration requires the GNU assembler" >&2 | |
4990 | exit 1 | |
4991 | fi | |
6d6c1801 | 4992 | ;; |
4993 | esac | |
c8aeaa6d | 4994 | |
142cf471 | 4995 | # ??? Not all targets support dwarf2 debug_line, even within a version |
4996 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
4997 | # info to the output file. So, as supported targets are added to gas 2.11, | |
4998 | # add some instruction here to (also) show we expect this might work. | |
4999 | # ??? Once 2.11 is released, probably need to add first known working | |
5000 | # version to the per-target configury. | |
5b80c8e4 | 5001 | case "$cpu_type" in |
9399b971 | 5002 | aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \ |
d71996db | 5003 | | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu \ |
d7d03008 | 5004 | | tilegx | tilepro | visium | xstormy16 | xtensa) |
142cf471 | 5005 | insn="nop" |
5006 | ;; | |
5b80c8e4 | 5007 | ia64 | s390) |
142cf471 | 5008 | insn="nop 0" |
5009 | ;; | |
5b80c8e4 | 5010 | mmix) |
482662fd | 5011 | insn="swym 0" |
5012 | ;; | |
6d6c1801 | 5013 | esac |
5014 | if test x"$insn" != x; then | |
5015 | conftest_s="\ | |
5016 | .file 1 \"conftest.s\" | |
5017 | .loc 1 3 0 | |
5018 | $insn" | |
5019 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
5020 | gcc_cv_as_dwarf2_debug_line, | |
5021 | [elf,2,11,0],, [$conftest_s], | |
1b33a244 | 5022 | [if test x$gcc_cv_objdump != x \ |
5023 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
5024 | | grep debug_line > /dev/null 2>&1; then | |
6d6c1801 | 5025 | gcc_cv_as_dwarf2_debug_line=yes |
0b135c47 | 5026 | elif test x$gcc_cv_otool != x \ |
5027 | && $gcc_cv_otool -l conftest.o 2> /dev/null \ | |
5028 | | grep debug_line > /dev/null 2>&1; then | |
5029 | gcc_cv_as_dwarf2_debug_line=yes | |
6d6c1801 | 5030 | fi]) |
5031 | ||
5032 | # The .debug_line file table must be in the exact order that | |
5033 | # we specified the files, since these indices are also used | |
5034 | # by DW_AT_decl_file. Approximate this test by testing if | |
5035 | # the assembler bitches if the same index is assigned twice. | |
5036 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
5037 | gcc_cv_as_dwarf2_file_buggy,,, | |
5038 | [ .file 1 "foo.s" | |
5039 | .file 1 "bar.s"]) | |
5040 | ||
5041 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
5042 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
7b0db09c | 5043 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
6d6c1801 | 5044 | [Define if your assembler supports dwarf2 .file/.loc directives, |
4a82352a | 5045 | and preserves file table indices exactly as given.]) |
7b0db09c | 5046 | |
5047 | if test $gcc_cv_as_leb128 = yes; then | |
5048 | conftest_s="\ | |
5049 | .file 1 \"conftest.s\" | |
5050 | .loc 1 3 0 view .LVU1 | |
5051 | $insn | |
5052 | .data | |
5053 | .uleb128 .LVU1 | |
5054 | .uleb128 .LVU1 | |
5055 | " | |
5056 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support], | |
5057 | gcc_cv_as_dwarf2_debug_view, | |
5058 | [elf,2,27,0],,[$conftest_s],, | |
5059 | [AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1, | |
5060 | [Define if your assembler supports views in dwarf2 .loc directives.])]) | |
5061 | fi | |
6d6c1801 | 5062 | fi |
5063 | ||
5064 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
5065 | gcc_cv_as_gdwarf2_flag, | |
5066 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
5067 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
5068 | [Define if your assembler supports the --gdwarf2 option.])]) | |
5069 | ||
5070 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
5071 | gcc_cv_as_gstabs_flag, | |
3efb5d22 | 5072 | [elf,2,11,0], [--gstabs], [$insn],, |
6d6c1801 | 5073 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, |
5074 | [Define if your assembler supports the --gstabs option.])]) | |
5f1f2de5 | 5075 | |
5076 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
5077 | gcc_cv_as_debug_prefix_map_flag, | |
22ff3bfb | 5078 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
5f1f2de5 | 5079 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
5080 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
142cf471 | 5081 | fi |
1a6f9700 | 5082 | |
4185c905 | 5083 | gcc_GAS_CHECK_FEATURE([compressed debug sections], |
8151105d | 5084 | gcc_cv_as_compress_debug,,,, |
4185c905 | 5085 | [# gas compiled without zlib cannot compress debug sections and warns |
5086 | # about it, but still exits successfully. So check for this, too. | |
5087 | if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null | |
5088 | then | |
5089 | gcc_cv_as_compress_debug=0 | |
8151105d | 5090 | # Since binutils 2.26, gas supports --compress-debug-sections=type, |
5091 | # defaulting to the ELF gABI format. | |
5092 | elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1 | |
5093 | then | |
5094 | gcc_cv_as_compress_debug=2 | |
5095 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5096 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5097 | # Before binutils 2.26, gas only supported --compress-debug-options and | |
5098 | # emitted the traditional GNU format. | |
4185c905 | 5099 | elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1 |
5100 | then | |
5101 | gcc_cv_as_compress_debug=1 | |
5102 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5103 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5104 | else | |
5105 | gcc_cv_as_compress_debug=0 | |
4185c905 | 5106 | fi]) |
5107 | AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug, | |
5108 | [Define to the level of your assembler's compressed debug section support.]) | |
5109 | AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option", | |
5110 | [Define to the assembler option to enable compressed debug sections.]) | |
5111 | AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option", | |
5112 | [Define to the assembler option to disable compressed debug sections.]) | |
5113 | ||
a65d7dd0 | 5114 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
5115 | ,, | |
5116 | [.lcomm bar,4,16],, | |
5117 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
5118 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
5119 | ||
4543a554 | 5120 | if test x$with_sysroot = x && test x$host = x$target \ |
5121 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
5122 | && test "$prefix" != "NONE"; then | |
5123 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
5124 | [Define to PREFIX/include if cpp should also search that directory.]) | |
5125 | fi | |
5126 | ||
4543a554 | 5127 | # Determine the version of glibc, if any, used on the target. |
5128 | AC_MSG_CHECKING([for target glibc version]) | |
5129 | AC_ARG_WITH([glibc-version], | |
5130 | [AS_HELP_STRING([--with-glibc-version=M.N], | |
5131 | [assume GCC used with glibc version M.N or later])], [ | |
5132 | if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then | |
5133 | glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` | |
5134 | glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` | |
5135 | else | |
5136 | AC_MSG_ERROR([option --with-glibc-version requires a version number M.N]) | |
5137 | fi], [ | |
5138 | glibc_version_major=0 | |
5139 | glibc_version_minor=0 | |
5140 | [if test -f $target_header_dir/features.h \ | |
5141 | && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \ | |
5142 | && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then | |
5143 | glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'` | |
5144 | glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'` | |
5145 | fi]]) | |
5146 | AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor]) | |
6eb68b8f | 5147 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major], |
5148 | [GNU C Library major version number used on the target, or 0.]) | |
5149 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor], | |
5150 | [GNU C Library minor version number used on the target, or 0.]) | |
4543a554 | 5151 | |
924907a3 | 5152 | AC_ARG_ENABLE(gnu-unique-object, |
d9d975ae | 5153 | [AS_HELP_STRING([--enable-gnu-unique-object], |
5154 | [enable the use of the @gnu_unique_object ELF extension on glibc systems])], | |
924907a3 | 5155 | [case $enable_gnu_unique_object in |
5156 | yes | no) ;; | |
5157 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
5158 | Valid choices are 'yes' and 'no'.]) ;; | |
5159 | esac], | |
5160 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
5161 | [elf,2,19,52],, | |
4eb5a747 | 5162 | [.type foo, '$target_type_format_char'gnu_unique_object],, |
5163 | # We need to unquote above to to use the definition from config.gcc. | |
924907a3 | 5164 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
4543a554 | 5165 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )] |
5166 | )]) | |
924907a3 | 5167 | if test x$enable_gnu_unique_object = xyes; then |
5168 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
5169 | [Define if your assembler supports @gnu_unique_object.]) | |
5170 | fi | |
5171 | ||
a8971681 | 5172 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
5173 | [gcc_cv_as_line_zero], | |
5174 | [gcc_cv_as_line_zero=no | |
5175 | if test $in_tree_gas = yes; then | |
95cd4953 | 5176 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
a8971681 | 5177 | elif test "x$gcc_cv_as" != x; then |
5178 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
5179 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
5180 | test "x`cat conftest.out`" = x | |
5181 | then | |
5182 | gcc_cv_as_line_zero=yes | |
5183 | else | |
5184 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
5185 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
5186 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
5187 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
5188 | fi | |
5189 | rm -f conftest.o conftest.s conftest.out | |
5190 | fi]) | |
5191 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
5192 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
5193 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
5194 | fi | |
5195 | ||
655e3fb1 | 5196 | AC_MSG_CHECKING(support for thin archives) |
5197 | thin_archive_support=no | |
5198 | echo 'int main (void) { return 0; }' > conftest.c | |
5199 | if ($AR --version | sed 1q | grep "GNU ar" \ | |
5200 | && $CC $CFLAGS -c conftest.c \ | |
5201 | && $AR rcT conftest.a conftest.o \ | |
5202 | && $CC $CFLAGS $LDFLAGS -o conftest conftest.a) >/dev/null 2>&1; then | |
5203 | thin_archive_support=yes | |
5204 | fi | |
5205 | rm -f conftest.c conftest.o conftest.a conftest | |
5206 | AC_MSG_RESULT($thin_archive_support) | |
5207 | AC_SUBST(thin_archive_support) | |
5208 | ||
0d6378a9 | 5209 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
5210 | gcc_cv_ld_eh_frame_hdr=no | |
7349ace9 | 5211 | if test $in_tree_ld = yes ; then |
0dac358a | 5212 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5213 | && test $in_tree_ld_is_elf = yes; then | |
0d6378a9 | 5214 | gcc_cv_ld_eh_frame_hdr=yes |
5215 | fi | |
5216 | elif test x$gcc_cv_ld != x; then | |
bdd793b2 | 5217 | if echo "$ld_ver" | grep GNU > /dev/null; then |
5218 | # Check if linker supports --eh-frame-hdr option | |
f50c2ca3 | 5219 | if $gcc_cv_ld --help 2>&1 | grep eh-frame-hdr > /dev/null; then |
bdd793b2 | 5220 | gcc_cv_ld_eh_frame_hdr=yes |
5221 | fi | |
5222 | else | |
5223 | case "$target" in | |
5224 | *-*-solaris2*) | |
839ff241 | 5225 | # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251. |
5226 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then | |
bdd793b2 | 5227 | gcc_cv_ld_eh_frame_hdr=yes |
5228 | fi | |
5229 | ;; | |
5230 | esac | |
5231 | fi | |
0d6378a9 | 5232 | fi |
fcd42b1e | 5233 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
0d6378a9 | 5234 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
5235 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
bdd793b2 | 5236 | [Define if your linker supports .eh_frame_hdr.]) |
0d6378a9 | 5237 | fi |
5238 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
5239 | ||
75d28287 | 5240 | AC_MSG_CHECKING(linker CIEv3 in .eh_frame support) |
5241 | gcc_cv_ld_eh_frame_ciev3=no | |
5242 | if test $in_tree_ld = yes ; then | |
5243 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5244 | && test $in_tree_ld_is_elf = yes; then | |
5245 | gcc_cv_ld_eh_frame_ciev3=yes | |
5246 | fi | |
5247 | elif test x$gcc_cv_ld != x; then | |
5248 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5249 | gcc_cv_ld_eh_frame_ciev3=yes | |
5250 | if test 0"$ld_date" -lt 20040513; then | |
5251 | if test -n "$ld_date"; then | |
5252 | # If there was date string, but was earlier than 2004-05-13, fail | |
5253 | gcc_cv_ld_eh_frame_ciev3=no | |
5254 | elif test "$ld_vers_major" -lt 2; then | |
5255 | gcc_cv_ld_eh_frame_ciev3=no | |
5256 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
5257 | gcc_cv_ld_eh_frame_ciev3=no | |
5258 | fi | |
5259 | fi | |
5260 | else | |
5261 | case "$target" in | |
5262 | *-*-solaris2*) | |
5263 | # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1. | |
5264 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then | |
5265 | gcc_cv_ld_eh_frame_ciev3=yes | |
5266 | fi | |
5267 | ;; | |
5268 | esac | |
5269 | fi | |
5270 | fi | |
5271 | AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3, | |
5272 | [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`], | |
5273 | [Define 0/1 if your linker supports CIE v3 in .eh_frame.]) | |
5274 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3) | |
5275 | ||
c3ce66b0 | 5276 | AC_MSG_CHECKING(linker position independent executable support) |
5277 | gcc_cv_ld_pie=no | |
5278 | if test $in_tree_ld = yes ; then | |
80fc7cb7 | 5279 | case "$target" in |
5280 | # Full PIE support on Solaris was only introduced in gld 2.26. | |
5281 | *-*-solaris2*) gcc_gld_pie_min_version=26 ;; | |
5282 | *) gcc_gld_pie_min_version=15 ;; | |
5283 | esac | |
5284 | 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 \ | |
0dac358a | 5285 | && test $in_tree_ld_is_elf = yes; then |
c3ce66b0 | 5286 | gcc_cv_ld_pie=yes |
5287 | fi | |
5288 | elif test x$gcc_cv_ld != x; then | |
80fc7cb7 | 5289 | # Check if linker supports -pie option |
f50c2ca3 | 5290 | if $gcc_cv_ld --help 2>&1 | grep -- -pie > /dev/null; then |
80fc7cb7 | 5291 | gcc_cv_ld_pie=yes |
5292 | case "$target" in | |
5293 | *-*-solaris2*) | |
5294 | if echo "$ld_ver" | grep GNU > /dev/null \ | |
5295 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5296 | gcc_cv_ld_pie=no | |
5297 | fi | |
5298 | ;; | |
5299 | esac | |
5300 | else | |
5301 | case "$target" in | |
5302 | *-*-solaris2.1[[1-9]]*) | |
9273bda7 | 5303 | # Solaris 11.3 added PIE support. |
80fc7cb7 | 5304 | if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then |
5305 | gcc_cv_ld_pie=yes | |
c3ce66b0 | 5306 | fi |
80fc7cb7 | 5307 | ;; |
5308 | esac | |
5309 | fi | |
c3ce66b0 | 5310 | fi |
5311 | if test x"$gcc_cv_ld_pie" = xyes; then | |
5312 | AC_DEFINE(HAVE_LD_PIE, 1, | |
80fc7cb7 | 5313 | [Define if your linker supports PIE option.]) |
c3ce66b0 | 5314 | fi |
5315 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
130f2334 | 5316 | |
5317 | AC_MSG_CHECKING(linker PIE support with copy reloc) | |
5318 | gcc_cv_ld_pie_copyreloc=no | |
5319 | if test $gcc_cv_ld_pie = yes ; then | |
5320 | if test $in_tree_ld = yes ; then | |
5321 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
5322 | gcc_cv_ld_pie_copyreloc=yes | |
5323 | fi | |
5324 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5325 | # Check if linker supports -pie option with copy reloc | |
5326 | case "$target" in | |
5327 | i?86-*-linux* | x86_64-*-linux*) | |
5328 | cat > conftest1.s <<EOF | |
5329 | .globl a_glob | |
5330 | .data | |
5331 | .type a_glob, @object | |
5332 | .size a_glob, 4 | |
5333 | a_glob: | |
5334 | .long 2 | |
5335 | EOF | |
5336 | cat > conftest2.s <<EOF | |
5337 | .text | |
5338 | .globl main | |
5339 | .type main, @function | |
5340 | main: | |
5341 | movl %eax, a_glob(%rip) | |
5342 | .size main, .-main | |
32f62b18 | 5343 | .globl ptr |
5344 | .section .data.rel,"aw",@progbits | |
5345 | .type ptr, @object | |
5346 | ptr: | |
5347 | .quad a_glob | |
130f2334 | 5348 | EOF |
5349 | if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5350 | && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \ | |
5351 | && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5352 | && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then | |
5353 | gcc_cv_ld_pie_copyreloc=yes | |
5354 | fi | |
5355 | rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s | |
5356 | ;; | |
5357 | esac | |
5358 | fi | |
130f2334 | 5359 | fi |
8271b807 | 5360 | AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC, |
5361 | [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`], | |
5362 | [Define 0/1 if your linker supports -pie option with copy reloc.]) | |
130f2334 | 5363 | AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc) |
c3ce66b0 | 5364 | |
0a011112 | 5365 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
5366 | gcc_cv_ld_eh_gc_sections=no | |
5367 | if test $in_tree_ld = yes ; then | |
5368 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5369 | && test $in_tree_ld_is_elf = yes; then | |
5370 | gcc_cv_ld_eh_gc_sections=yes | |
5371 | fi | |
5372 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
5373 | cat > conftest.s <<EOF | |
5374 | .section .text | |
5375 | .globl _start | |
5376 | .type _start, @function | |
5377 | _start: | |
5378 | .long foo | |
5379 | .size _start, .-_start | |
5380 | .section .text.foo,"ax",@progbits | |
5381 | .type foo, @function | |
5382 | foo: | |
5383 | .long 0 | |
5384 | .size foo, .-foo | |
5385 | .section .gcc_except_table.foo,"a",@progbits | |
5386 | .L0: | |
5387 | .long 0 | |
5388 | .section .eh_frame,"a",@progbits | |
5389 | .long .L0 | |
5390 | EOF | |
5391 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5392 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5393 | | grep "gc-sections option ignored" > /dev/null; then | |
5394 | gcc_cv_ld_eh_gc_sections=no | |
a6898883 | 5395 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5396 | | grep gcc_except_table > /dev/null; then | |
0a011112 | 5397 | gcc_cv_ld_eh_gc_sections=yes |
c8aaf000 | 5398 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
5399 | if test x$gcc_cv_as_comdat_group != xyes; then | |
5400 | gcc_cv_ld_eh_gc_sections=no | |
5401 | cat > conftest.s <<EOF | |
5402 | .section .text | |
5403 | .globl _start | |
5404 | .type _start, @function | |
5405 | _start: | |
5406 | .long foo | |
5407 | .size _start, .-_start | |
5408 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
5409 | .type foo, @function | |
5410 | foo: | |
5411 | .long 0 | |
5412 | .size foo, .-foo | |
5413 | .section .gcc_except_table.foo,"a",@progbits | |
5414 | .L0: | |
5415 | .long 0 | |
5416 | .section .eh_frame,"a",@progbits | |
5417 | .long .L0 | |
5418 | EOF | |
5419 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5420 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5421 | | grep "gc-sections option ignored" > /dev/null; then | |
5422 | gcc_cv_ld_eh_gc_sections=no | |
a6898883 | 5423 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5424 | | grep gcc_except_table > /dev/null; then | |
c8aaf000 | 5425 | gcc_cv_ld_eh_gc_sections=yes |
5426 | fi | |
5427 | fi | |
5428 | fi | |
0a011112 | 5429 | fi |
5430 | fi | |
5431 | rm -f conftest.s conftest.o conftest | |
5432 | fi | |
c8aaf000 | 5433 | case "$target" in |
5434 | hppa*-*-linux*) | |
5435 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
5436 | gcc_cv_ld_eh_gc_sections=no | |
5437 | ;; | |
5438 | esac | |
0a011112 | 5439 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
5440 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
5441 | [Define if your linker supports garbage collection of | |
5442 | sections in presence of EH frames.]) | |
5443 | fi | |
5444 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
5445 | ||
34edf61b | 5446 | AC_MSG_CHECKING(linker EH garbage collection of sections bug) |
5447 | gcc_cv_ld_eh_gc_sections_bug=no | |
5448 | if test $in_tree_ld = yes ; then | |
5449 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \ | |
5450 | && test $in_tree_ld_is_elf = yes; then | |
5451 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5452 | fi | |
5453 | elif test x$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 | |
5454 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5455 | cat > conftest.s <<EOF | |
5456 | .section .text | |
5457 | .globl _start | |
5458 | .type _start, @function | |
5459 | _start: | |
5460 | .long foo | |
5461 | .size _start, .-_start | |
5462 | .section .text.startup.foo,"ax",@progbits | |
5463 | .type foo, @function | |
5464 | foo: | |
5465 | .long 0 | |
5466 | .size foo, .-foo | |
5467 | .section .gcc_except_table.foo,"a",@progbits | |
5468 | .L0: | |
5469 | .long 0 | |
5470 | .section .eh_frame,"a",@progbits | |
5471 | .long .L0 | |
5472 | EOF | |
5473 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5474 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5475 | | grep "gc-sections option ignored" > /dev/null; then | |
5476 | : | |
5477 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ | |
5478 | | grep gcc_except_table > /dev/null; then | |
5479 | gcc_cv_ld_eh_gc_sections_bug=no | |
5480 | fi | |
5481 | fi | |
5482 | rm -f conftest.s conftest.o conftest | |
5483 | fi | |
5484 | if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then | |
5485 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1, | |
5486 | [Define if your linker has buggy garbage collection of | |
5487 | sections support when .text.startup.foo like sections are used.]) | |
5488 | fi | |
5489 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug) | |
5490 | ||
4185c905 | 5491 | AC_MSG_CHECKING(linker for compressed debug sections) |
5492 | # gold/gld support compressed debug sections since binutils 2.19/2.21 | |
8151105d | 5493 | # In binutils 2.26, gld gained support for the ELF gABI format. |
4185c905 | 5494 | if test $in_tree_ld = yes ; then |
5495 | gcc_cv_ld_compress_debug=0 | |
5496 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5497 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then | |
5498 | gcc_cv_ld_compress_debug=2 | |
5499 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
8151105d | 5500 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5501 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then | |
5502 | gcc_cv_ld_compress_debug=3 | |
5503 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
4185c905 | 5504 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5505 | && test $in_tree_ld_is_elf = yes; then | |
5506 | gcc_cv_ld_compress_debug=1 | |
5507 | fi | |
5508 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
8151105d | 5509 | if test "$ld_vers_major" -lt 2 \ |
5510 | || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then | |
5511 | gcc_cv_ld_compress_debug=0 | |
5512 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5513 | gcc_cv_ld_compress_debug=1 | |
5514 | else | |
5515 | gcc_cv_ld_compress_debug=3 | |
5516 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
4185c905 | 5517 | fi |
5518 | if test $ld_is_gold = yes; then | |
5519 | gcc_cv_ld_compress_debug=2 | |
5520 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
5521 | fi | |
5522 | else | |
5523 | changequote(,)dnl | |
5524 | case "${target}" in | |
5525 | *-*-solaris2*) | |
5526 | # Introduced in Solaris 11.2. | |
5527 | if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then | |
5528 | gcc_cv_ld_compress_debug=3 | |
5529 | gcc_cv_ld_compress_debug_option="-z compress-sections" | |
5530 | else | |
5531 | gcc_cv_ld_compress_debug=0 | |
5532 | fi | |
5533 | ;; | |
5534 | *) | |
5535 | # Assume linkers other than GNU ld don't support compessed debug | |
5536 | # sections. | |
5537 | gcc_cv_ld_compress_debug=0 | |
5538 | ;; | |
5539 | esac | |
5540 | changequote([,])dnl | |
5541 | fi | |
5542 | AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug, | |
5543 | [Define to the level of your linker's compressed debug section support.]) | |
5544 | AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option", | |
5545 | [Define to the linker option to enable compressed debug sections.]) | |
5546 | AC_MSG_RESULT($gcc_cv_ld_compress_debug) | |
5547 | ||
6afab66e | 5548 | if test x"$ld64_flag" = x"yes"; then |
5549 | ||
5550 | # Set defaults for possibly untestable items. | |
5551 | gcc_cv_ld64_export_dynamic=0 | |
5552 | ||
5553 | if test "$build" = "$host"; then | |
5554 | darwin_try_test=1 | |
5555 | else | |
5556 | darwin_try_test=0 | |
5557 | fi | |
5558 | ||
5559 | # On Darwin, because of FAT library support, it is often possible to execute | |
5560 | # exes from compatible archs even when the host differs from the build system. | |
5561 | case "$build","$host" in | |
5562 | x86_64-*-darwin*,i?86-*-darwin* | powerpc64*-*-darwin*,powerpc*-*-darwin*) | |
5563 | darwin_try_test=1;; | |
5564 | *) ;; | |
5565 | esac | |
5566 | ||
5567 | # If the configurer specified a minimum ld64 version to be supported, then use | |
5568 | # that to determine feature support. | |
5569 | if test x"${gcc_cv_ld64_version}" != x; then | |
188f3056 | 5570 | AC_MSG_CHECKING(ld64 specified version) |
5571 | gcc_cv_ld64_major=`echo "$gcc_cv_ld64_version" | sed -e 's/\..*//'` | |
6afab66e | 5572 | AC_MSG_RESULT($gcc_cv_ld64_major) |
5573 | if test "$gcc_cv_ld64_major" -ge 236; then | |
5574 | gcc_cv_ld64_export_dynamic=1 | |
5575 | fi | |
5576 | elif test -x "$gcc_cv_ld" -a "$darwin_try_test" -eq 1; then | |
5577 | # If the version was not specified, try to find it. | |
5578 | AC_MSG_CHECKING(linker version) | |
5579 | if test x"${gcc_cv_ld64_version}" = x; then | |
5580 | gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'` | |
5581 | fi | |
5582 | AC_MSG_RESULT($gcc_cv_ld64_version) | |
5583 | ||
5584 | AC_MSG_CHECKING(linker for -export_dynamic support) | |
5585 | gcc_cv_ld64_export_dynamic=1 | |
5586 | if $gcc_cv_ld -export_dynamic < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
5587 | gcc_cv_ld64_export_dynamic=0 | |
5588 | fi | |
5589 | AC_MSG_RESULT($gcc_cv_ld64_export_dynamic) | |
5590 | fi | |
5591 | ||
5592 | if test x"${gcc_cv_ld64_version}" != x; then | |
5593 | AC_DEFINE_UNQUOTED(LD64_VERSION, "${gcc_cv_ld64_version}", | |
5594 | [Define to ld64 version.]) | |
5595 | fi | |
5596 | ||
5597 | AC_DEFINE_UNQUOTED(LD64_HAS_EXPORT_DYNAMIC, $gcc_cv_ld64_export_dynamic, | |
5598 | [Define to 1 if ld64 supports '-export_dynamic'.]) | |
5599 | fi | |
5600 | ||
d8a2ca58 | 5601 | # -------- |
5602 | # UNSORTED | |
5603 | # -------- | |
5604 | ||
11a4b5d2 | 5605 | AC_CACHE_CHECK(linker --as-needed support, |
5606 | gcc_cv_ld_as_needed, | |
5607 | [gcc_cv_ld_as_needed=no | |
8aaed91d | 5608 | gcc_cv_ld_as_needed_option='--as-needed' |
5609 | gcc_cv_ld_no_as_needed_option='--no-as-needed' | |
6a40149e | 5610 | if test $in_tree_ld = yes ; then |
5611 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5612 | && test $in_tree_ld_is_elf = yes; then | |
5613 | gcc_cv_ld_as_needed=yes | |
305fd725 | 5614 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then |
5615 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5616 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5617 | fi | |
6a40149e | 5618 | fi |
5619 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5620 | # Check if linker supports --as-needed and --no-as-needed options |
5621 | if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then | |
5622 | gcc_cv_ld_as_needed=yes | |
305fd725 | 5623 | if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \ |
5624 | && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \ | |
5625 | && echo "$ld_ver" | grep GNU > /dev/null \ | |
5626 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then | |
5627 | # Use these options only when both ld.bfd and ld.gold support | |
5628 | # --push-state/--pop-state, which unfortunately wasn't added | |
5629 | # at the same time. | |
5630 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5631 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5632 | fi | |
f50c2ca3 | 5633 | fi |
5634 | case "$target:$gnu_ld" in | |
5635 | *-*-solaris2*:no) | |
5636 | # Solaris 2 ld always supports -z ignore/-z record. Prefer the native | |
5637 | # forms. | |
5638 | gcc_cv_ld_as_needed=yes | |
5639 | gcc_cv_ld_as_needed_option="-z ignore" | |
5640 | gcc_cv_ld_no_as_needed_option="-z record" | |
5641 | ;; | |
5642 | esac | |
6a40149e | 5643 | fi |
a861c00f | 5644 | # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses |
5645 | # dl_iterate_phdr, i.e. since Solaris 11. | |
5646 | case "$target" in | |
5647 | *-*-solaris2.1[[1-9]]*) | |
5648 | case "$target" in | |
5649 | i?86-*-* | x86_64-*-*) | |
5650 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5651 | # Doesn't work with gld on Solaris/x86 due to PR ld/12320. | |
5652 | gcc_cv_ld_as_needed=no | |
5653 | fi | |
5654 | ;; | |
5655 | esac | |
5656 | ;; | |
5657 | *-*-solaris2*) | |
5658 | gcc_cv_ld_as_needed=no | |
5659 | ;; | |
5660 | esac | |
11a4b5d2 | 5661 | ]) |
6a40149e | 5662 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
5663 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
8aaed91d | 5664 | [Define if your linker supports --as-needed/--no-as-needed or equivalent options.]) |
5665 | AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option", | |
5666 | [Define to the linker option to ignore unused dependencies.]) | |
5667 | AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option", | |
5668 | [Define to the linker option to keep unused dependencies.]) | |
6a40149e | 5669 | fi |
6a40149e | 5670 | |
53037a4d | 5671 | AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) |
5672 | saved_LDFLAGS="$LDFLAGS" | |
5673 | for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do | |
5674 | LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" | |
f00f02a3 | 5675 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
53037a4d | 5676 | [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) |
5677 | done | |
5678 | LDFLAGS="$saved_LDFLAGS" | |
5679 | if test "x$gcc_cv_ld_clearcap" = xyes; then | |
5680 | AC_DEFINE([HAVE_LD_CLEARCAP], 1, | |
5681 | [Define if the linker supports clearing hardware capabilities via mapfile.]) | |
5682 | AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map]) | |
5683 | fi | |
5684 | AC_MSG_RESULT($gcc_cv_ld_clearcap) | |
5685 | ||
2789368d | 5686 | case "$target" in |
5687 | powerpc*-*-*) | |
5688 | case "$target" in | |
5689 | *le-*-linux*) | |
5690 | emul_name="-melf32lppc" | |
5691 | ;; | |
5692 | *) | |
5693 | emul_name="-melf32ppc" | |
5694 | ;; | |
5695 | esac | |
5696 | AC_CACHE_CHECK(linker .gnu.attributes long double support, | |
5697 | gcc_cv_ld_ppc_attr, | |
5698 | [gcc_cv_ld_ppc_attr=no | |
5699 | if test x"$ld_is_gold" = xyes; then | |
5700 | gcc_cv_ld_ppc_attr=yes | |
5701 | elif test $in_tree_ld = yes ; then | |
5702 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
5703 | -a "$gcc_cv_gld_minor_version" -ge 28 \ | |
5704 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
5705 | gcc_cv_ld_ppc_attr=yes | |
5706 | fi | |
5707 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5708 | # check that merging the long double .gnu_attribute doesn't warn | |
5709 | cat > conftest1.s <<EOF | |
5710 | .gnu_attribute 4,1 | |
5711 | EOF | |
5712 | cat > conftest2.s <<EOF | |
5713 | .gnu_attribute 4,9 | |
5714 | EOF | |
5715 | if $gcc_cv_as -a32 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5716 | && $gcc_cv_as -a32 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5717 | && $gcc_cv_ld $emul_name -r -o conftest.o conftest1.o conftest2.o > /dev/null 2> conftest.err \ | |
5718 | && test ! -s conftest.err; then | |
5719 | gcc_cv_ld_ppc_attr=yes | |
5720 | fi | |
5721 | rm -f conftest.err conftest.o conftest1.o conftest2.o conftest1.s conftest2.s | |
5722 | fi | |
5723 | ]) | |
5724 | if test x$gcc_cv_ld_ppc_attr = xyes; then | |
5725 | AC_DEFINE(HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE, 1, | |
5726 | [Define if your PowerPC linker has .gnu.attributes long double support.]) | |
5727 | fi | |
5728 | ;; | |
5729 | esac | |
5730 | ||
4de3052c | 5731 | case "$target:$tm_file" in |
2ac000bb | 5732 | powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) |
5733 | case "$target" in | |
7c291732 | 5734 | *le-*-linux*) |
5735 | emul_name="-melf64lppc" | |
5736 | ;; | |
2ac000bb | 5737 | *-*-linux*) |
5738 | emul_name="-melf64ppc" | |
5739 | ;; | |
5740 | *-*-freebsd*) | |
5741 | emul_name="-melf64ppc_fbsd" | |
5742 | ;; | |
5743 | esac | |
66ebfa67 | 5744 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
5745 | gcc_cv_ld_no_dot_syms, | |
5746 | [gcc_cv_ld_no_dot_syms=no | |
8caed8e3 | 5747 | if test x"$ld_is_gold" = xyes; then |
5748 | gcc_cv_ld_no_dot_syms=yes | |
5749 | elif test $in_tree_ld = yes ; then | |
66ebfa67 | 5750 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then |
5751 | gcc_cv_ld_no_dot_syms=yes | |
5752 | fi | |
5753 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5754 | cat > conftest1.s <<EOF | |
5755 | .text | |
5756 | bl .foo | |
5757 | EOF | |
5758 | cat > conftest2.s <<EOF | |
5759 | .section ".opd","aw" | |
5760 | .align 3 | |
5761 | .globl foo | |
5762 | .type foo,@function | |
5763 | foo: | |
5764 | .quad .LEfoo,.TOC.@tocbase,0 | |
5765 | .text | |
5766 | .LEfoo: | |
5767 | blr | |
5768 | .size foo,.-.LEfoo | |
5769 | EOF | |
5770 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5771 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2ac000bb | 5772 | && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then |
66ebfa67 | 5773 | gcc_cv_ld_no_dot_syms=yes |
5774 | fi | |
5775 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
5776 | fi | |
5777 | ]) | |
5778 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
5779 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
5780 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
5781 | fi | |
72350d7b | 5782 | |
5783 | AC_CACHE_CHECK(linker large toc support, | |
5784 | gcc_cv_ld_large_toc, | |
5785 | [gcc_cv_ld_large_toc=no | |
8caed8e3 | 5786 | if test x"$ld_is_gold" = xyes; then |
5787 | gcc_cv_ld_large_toc=yes | |
5788 | elif test $in_tree_ld = yes ; then | |
72350d7b | 5789 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then |
5790 | gcc_cv_ld_large_toc=yes | |
5791 | fi | |
5792 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5793 | cat > conftest.s <<EOF | |
5794 | .section ".tbss","awT",@nobits | |
5795 | .align 3 | |
5796 | ie0: .space 8 | |
5797 | .global _start | |
5798 | .text | |
5799 | _start: | |
5800 | addis 9,13,ie0@got@tprel@ha | |
5801 | ld 9,ie0@got@tprel@l(9) | |
5802 | EOF | |
5803 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
2ac000bb | 5804 | && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then |
72350d7b | 5805 | gcc_cv_ld_large_toc=yes |
5806 | fi | |
5807 | rm -f conftest conftest.o conftest.s | |
5808 | fi | |
5809 | ]) | |
5810 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5811 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
5812 | [Define if your PowerPC64 linker supports a large TOC.]) | |
5813 | fi | |
029eed15 | 5814 | |
5815 | AC_CACHE_CHECK(linker toc pointer alignment, | |
5816 | gcc_cv_ld_toc_align, | |
5817 | [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then | |
5818 | cat > conftest.s <<EOF | |
5819 | .global _start | |
5820 | .text | |
5821 | _start: | |
5822 | addis 9,2,x@got@ha | |
5823 | .section .data.rel.ro,"aw",@progbits | |
5824 | .p2align 16 | |
5825 | .space 32768 | |
5826 | x: .quad .TOC. | |
5827 | EOF | |
5828 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
2e139797 | 5829 | && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then |
029eed15 | 5830 | gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'` |
5831 | fi | |
5832 | rm -f conftest conftest.o conftest.s | |
5833 | fi | |
5834 | ]) | |
5835 | if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then | |
5836 | AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align, | |
5837 | [Define to .TOC. alignment forced by your linker.]) | |
5838 | fi | |
66ebfa67 | 5839 | ;; |
5840 | esac | |
5841 | ||
0a2ab8cc | 5842 | case "$target" in |
5843 | *-*-aix*) | |
5844 | AC_CACHE_CHECK(linker large toc support, | |
5845 | gcc_cv_ld_large_toc, | |
5846 | [gcc_cv_ld_large_toc=no | |
5847 | if test x$gcc_cv_as != x ; then | |
5848 | cat > conftest.s <<EOF | |
5849 | .toc | |
5850 | LC..1: | |
5851 | .tc a[[TC]],a[[RW]] | |
5852 | .extern a[[RW]] | |
5853 | .csect .text[[PR]] | |
5854 | .largetoctest: | |
5855 | addis 9,LC..1@u(2) | |
5856 | ld 3,LC..1@l(9) | |
5857 | EOF | |
5858 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then | |
5859 | gcc_cv_ld_large_toc=yes | |
5860 | fi | |
5861 | rm -f conftest conftest.o conftest.s | |
5862 | fi | |
5863 | ]) | |
5864 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5865 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
15ba1c5f | 5866 | [Define if your PowerPC64 linker supports a large TOC.]) |
0a2ab8cc | 5867 | fi |
5868 | ;; | |
5869 | esac | |
5870 | ||
8271b966 | 5871 | AC_CACHE_CHECK(linker --build-id support, |
5872 | gcc_cv_ld_buildid, | |
5873 | [gcc_cv_ld_buildid=no | |
5874 | if test $in_tree_ld = yes ; then | |
5875 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5876 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
5877 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5878 | && test $in_tree_ld_is_elf = yes; then | |
5879 | gcc_cv_ld_buildid=yes | |
5880 | fi | |
5881 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5882 | if $gcc_cv_ld --help 2>&1 | grep build-id > /dev/null; then |
8271b966 | 5883 | gcc_cv_ld_buildid=yes |
5884 | fi | |
5885 | fi]) | |
5886 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5887 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
5888 | [Define if your linker supports --build-id.]) | |
5889 | fi | |
5890 | ||
5891 | AC_ARG_ENABLE(linker-build-id, | |
bc6c87c1 | 5892 | [AS_HELP_STRING([--enable-linker-build-id], |
5893 | [compiler will always pass --build-id to linker])], | |
8271b966 | 5894 | [], |
5895 | enable_linker_build_id=no) | |
5896 | ||
5897 | if test x"$enable_linker_build_id" = xyes; then | |
5898 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5899 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
5900 | [Define if gcc should always pass --build-id to linker.]) | |
5901 | else | |
5902 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
5903 | fi | |
5904 | fi | |
5905 | ||
477b521a | 5906 | # In binutils 2.21, GNU ld gained support for new emulations fully |
5907 | # supporting the Solaris 2 ABI. Detect their presence in the linker used. | |
5908 | AC_CACHE_CHECK(linker *_sol2 emulation support, | |
5909 | gcc_cv_ld_sol2_emulation, | |
5910 | [gcc_cv_ld_sol2_emulation=no | |
5911 | if test $in_tree_ld = yes ; then | |
5912 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5913 | "$gcc_cv_gld_minor_version" -ge 21 -o \ | |
5914 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5915 | && test $in_tree_ld_is_elf = yes; then | |
5916 | gcc_cv_ld_sol2_emulation=yes | |
5917 | fi | |
5918 | elif test x$gcc_cv_ld != x; then | |
5919 | if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \ | |
5920 | grep _sol2 > /dev/null; then | |
5921 | gcc_cv_ld_sol2_emulation=yes | |
5922 | fi | |
5923 | fi]) | |
5924 | if test x"$gcc_cv_ld_sol2_emulation" = xyes; then | |
5925 | AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1, | |
5926 | [Define if your linker supports the *_sol2 emulations.]) | |
5927 | fi | |
5928 | ||
b6bcc48f | 5929 | AC_CACHE_CHECK(linker --sysroot support, |
5930 | gcc_cv_ld_sysroot, | |
5931 | [gcc_cv_ld_sysroot=no | |
5932 | if test $in_tree_ld = yes ; then | |
5933 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
93b26f8a | 5934 | gcc_cv_ld_sysroot=yes |
b6bcc48f | 5935 | fi |
5936 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5937 | if $gcc_cv_ld --help 2>&1 | grep sysroot > /dev/null; then |
b6bcc48f | 5938 | gcc_cv_ld_sysroot=yes |
5939 | fi | |
5940 | fi]) | |
5941 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
5942 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
5943 | [Define if your linker supports --sysroot.]) | |
5944 | fi | |
5945 | ||
ba24ad38 | 5946 | case $target in |
5947 | *-*-solaris2*) | |
5948 | # Check for system-provided CRTs on Solaris 11.x and Solaris 12. | |
5949 | AC_CACHE_CHECK([system-provided CRTs on Solaris], | |
5950 | gcc_cv_solaris_crts, | |
5951 | [gcc_cv_solaris_crts=no | |
5952 | if test x$host != x$target; then | |
5953 | if test "x$with_sysroot" = xyes; then | |
5954 | target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root" | |
5955 | else | |
5956 | target_sysroot="${with_sysroot}" | |
5957 | fi | |
5958 | fi | |
5959 | target_libdir="$target_sysroot/usr/lib" | |
5960 | # At the time they were added, gcrt1.o became a symlink for backwards | |
5961 | # compatibility on x86, while crt1.o was added on sparc, so check for that. | |
5962 | case $target in | |
5963 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
5964 | if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5965 | ;; | |
5966 | sparc*-*-solaris2*) | |
5967 | if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5968 | ;; | |
5969 | esac]) | |
5970 | ;; | |
5971 | esac | |
5972 | if test x$gcc_cv_solaris_crts = xyes; then | |
5973 | AC_DEFINE(HAVE_SOLARIS_CRTS, 1, | |
5974 | [Define if the system-provided CRTs are present on Solaris.]) | |
5975 | fi | |
5976 | ||
9815bd97 | 5977 | AC_ARG_ENABLE(libssp, |
5978 | [AS_HELP_STRING([--enable-libssp], [enable linking against libssp])], | |
5979 | [case "${enableval}" in | |
5980 | yes|no) | |
5981 | ;; | |
5982 | *) | |
5983 | AC_MSG_ERROR([unknown libssp setting $enableval]) | |
5984 | ;; | |
5985 | esac], []) | |
5986 | ||
0d55f4d0 | 5987 | # Test for stack protector support in target C library. |
66740228 | 5988 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
9815bd97 | 5989 | gcc_cv_libc_provides_ssp, |
5990 | [gcc_cv_libc_provides_ssp=no | |
5991 | if test "x$enable_libssp" = "xno"; then | |
5992 | gcc_cv_libc_provides_ssp=yes | |
5993 | elif test "x$enable_libssp" = "xyes"; then | |
5994 | gcc_cv_libc_provides_ssp=no | |
5995 | else | |
66740228 | 5996 | case "$target" in |
a9173cea | 5997 | *-*-musl*) |
5998 | # All versions of musl provide stack protector | |
5999 | gcc_cv_libc_provides_ssp=yes;; | |
79573034 | 6000 | *-*-linux* | *-*-kfreebsd*-gnu) |
4543a554 | 6001 | # glibc 2.4 and later provides __stack_chk_fail and |
0d55f4d0 | 6002 | # either __stack_chk_guard, or TLS access to stack guard canary. |
4543a554 | 6003 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [ |
6004 | [if test -f $target_header_dir/features.h \ | |
47cbc7da | 6005 | && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ |
bdd793b2 | 6006 | $target_header_dir/features.h > /dev/null; then |
4543a554 | 6007 | if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
bdd793b2 | 6008 | $target_header_dir/features.h > /dev/null && \ |
6009 | test -f $target_header_dir/bits/uClibc_config.h && \ | |
47cbc7da | 6010 | $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ |
bdd793b2 | 6011 | $target_header_dir/bits/uClibc_config.h > /dev/null; then |
e214b635 | 6012 | gcc_cv_libc_provides_ssp=yes |
0d55f4d0 | 6013 | fi |
e54ce707 | 6014 | # all versions of Bionic support stack protector |
6015 | elif test -f $target_header_dir/sys/cdefs.h \ | |
6016 | && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \ | |
6017 | $target_header_dir/sys/cdefs.h > /dev/null; then | |
6018 | gcc_cv_libc_provides_ssp=yes | |
4543a554 | 6019 | fi]]) |
66740228 | 6020 | ;; |
75bfea25 | 6021 | *-*-gnu*) |
6022 | # Avoid complicated tests (see | |
6023 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
6024 | # simply assert that glibc does provide this, which is true for all | |
6025 | # realistically usable GNU/Hurd configurations. | |
a9173cea | 6026 | # All supported versions of musl provide it as well |
75bfea25 | 6027 | gcc_cv_libc_provides_ssp=yes;; |
26271dee | 6028 | *-*-darwin* | *-*-freebsd* | *-*-netbsd*) |
66740228 | 6029 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
6030 | [echo "no __stack_chk_fail on this target"]) | |
6031 | ;; | |
9815bd97 | 6032 | *) gcc_cv_libc_provides_ssp=no ;; |
6033 | esac | |
6034 | fi]) | |
66740228 | 6035 | |
0d55f4d0 | 6036 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
6037 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
6038 | [Define if your target C library provides stack protector support]) | |
6039 | fi | |
6040 | ||
6957b94e | 6041 | # Check whether --enable-default-ssp was given. |
6042 | AC_ARG_ENABLE(default-ssp, | |
6043 | [AS_HELP_STRING([--enable-default-ssp], | |
6044 | [enable Stack Smashing Protection as default])],[ | |
6045 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
6046 | case "$target" in | |
6047 | ia64*-*-*) enable_default_ssp=no ;; | |
6048 | *) enable_default_ssp=$enableval ;; | |
6049 | esac | |
6050 | else | |
6051 | enable_default_ssp=no | |
6052 | fi], | |
6053 | enable_default_ssp=no) | |
605b00ec | 6054 | if test x$enable_default_ssp = xyes ; then |
6957b94e | 6055 | AC_DEFINE(ENABLE_DEFAULT_SSP, 1, |
6056 | [Define if your target supports default stack protector and it is enabled.]) | |
6057 | fi | |
6058 | AC_SUBST([enable_default_ssp]) | |
6059 | ||
f77bcf96 | 6060 | # Test for <sys/sdt.h> on the target. |
6061 | GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) | |
6062 | AC_MSG_CHECKING(sys/sdt.h in the target C library) | |
6063 | have_sys_sdt_h=no | |
6064 | if test -f $target_header_dir/sys/sdt.h; then | |
28c54e7d | 6065 | have_sys_sdt_h=yes |
f77bcf96 | 6066 | AC_DEFINE(HAVE_SYS_SDT_H, 1, |
6067 | [Define if your target C library provides sys/sdt.h]) | |
6068 | fi | |
6069 | AC_MSG_RESULT($have_sys_sdt_h) | |
6070 | ||
2dde0cc6 | 6071 | # Check if TFmode long double should be used by default or not. |
6072 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
6073 | # and later they can use TFmode. | |
6074 | case "$target" in | |
8c3bf67d | 6075 | powerpc*-*-linux* | \ |
2dde0cc6 | 6076 | sparc*-*-linux* | \ |
6077 | s390*-*-linux* | \ | |
6078 | alpha*-*-linux*) | |
6079 | AC_ARG_WITH(long-double-128, | |
bc6c87c1 | 6080 | [AS_HELP_STRING([--with-long-double-128], |
6081 | [use 128-bit long double by default])], | |
2dde0cc6 | 6082 | gcc_cv_target_ldbl128="$with_long_double_128", |
4543a554 | 6083 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [ |
6084 | [gcc_cv_target_ldbl128=no | |
2dde0cc6 | 6085 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
bdd793b2 | 6086 | $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \ |
dfce740a | 6087 | && gcc_cv_target_ldbl128=yes |
4543a554 | 6088 | ]])]) |
2dde0cc6 | 6089 | ;; |
6090 | esac | |
6091 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
6092 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
6093 | [Define if TFmode long double should be the default]) | |
6094 | fi | |
6095 | ||
b95c28c7 | 6096 | # Check if TFmode long double target should use the IBM extended double or IEEE |
6097 | # 128-bit floating point formats if long doubles are 128-bits long. The long | |
6098 | # double type can only be switched on powerpc64 bit Linux systems where VSX is | |
6099 | # supported. Other PowerPC systems do not build the IEEE 128-bit emulator in | |
6100 | # libgcc. | |
6101 | AC_ARG_WITH([long-double-format], | |
6102 | [AS_HELP_STRING([--with-long-double-format={ieee,ibm}] | |
6103 | [Specify whether PowerPC long double uses IEEE or IBM format])],[ | |
6104 | case "$target:$with_long_double_format" in | |
6105 | powerpc64le-*-linux*:ieee | powerpc64le-*-linux*:ibm) | |
6106 | : | |
6107 | ;; | |
6108 | powerpc64-*-linux*:ieee | powerpc64-*-linux*:ibm) | |
6109 | # IEEE 128-bit emulation is only built on 64-bit VSX Linux systems | |
6110 | case "$with_cpu" in | |
6111 | power7 | power8 | power9 | power1*) | |
6112 | : | |
6113 | ;; | |
6114 | *) | |
6115 | AC_MSG_ERROR([Configuration option --with-long-double-format is only \ | |
6116 | supported if the default cpu is power7 or newer]) | |
6117 | with_long_double_format="" | |
6118 | ;; | |
6119 | esac | |
6120 | ;; | |
6121 | xpowerpc64*-*-linux*:*) | |
6122 | AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee]) | |
6123 | with_long_double_format="" | |
6124 | ;; | |
6125 | *) | |
6126 | AC_MSG_ERROR([Configure option --with-long-double-format is only supported \ | |
6127 | on 64-bit PowerPC VSX Linux systems]) | |
6128 | with_long_double_format="" | |
6129 | ;; | |
6130 | esac], | |
6131 | []) | |
6132 | ||
62752e71 | 6133 | # Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP |
6134 | # values in the TCB. Currently, only GLIBC 2.23 and later support this. | |
6135 | gcc_cv_libc_provides_hwcap_in_tcb=no | |
6136 | case "$target" in | |
6137 | powerpc*-*-linux*) | |
6138 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], ) | |
6139 | ;; | |
6140 | esac | |
6141 | if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then | |
6142 | AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1, | |
6143 | [Define if your target C Library provides the AT_HWCAP value in the TCB]) | |
6144 | fi | |
6145 | ||
bdd793b2 | 6146 | AC_MSG_CHECKING(dl_iterate_phdr in target C library) |
6147 | gcc_cv_target_dl_iterate_phdr=unknown | |
6148 | case "$target" in | |
0fd03648 | 6149 | *-*-solaris2*) |
bdd793b2 | 6150 | # <link.h> needs both a dl_iterate_phdr declaration and support for |
6151 | # compilation with largefile support. | |
6152 | if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \ | |
6153 | && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then | |
6154 | gcc_cv_target_dl_iterate_phdr=yes | |
6155 | else | |
6156 | gcc_cv_target_dl_iterate_phdr=no | |
6157 | fi | |
6158 | ;; | |
463553db | 6159 | *-*-dragonfly* | *-*-freebsd*) |
6160 | if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then | |
6161 | gcc_cv_target_dl_iterate_phdr=yes | |
6162 | else | |
6163 | gcc_cv_target_dl_iterate_phdr=no | |
6164 | fi | |
6165 | ;; | |
a9173cea | 6166 | *-linux-musl*) |
6167 | gcc_cv_target_dl_iterate_phdr=yes | |
6168 | ;; | |
bdd793b2 | 6169 | esac |
6170 | GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR]) | |
6171 | if test x$gcc_cv_target_dl_iterate_phdr = xyes; then | |
6172 | AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1, | |
6173 | [Define if your target C library provides the `dl_iterate_phdr' function.]) | |
6174 | fi | |
6175 | AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr) | |
6176 | ||
5cc13354 | 6177 | # We no longer support different GC mechanisms. Emit an error if |
6178 | # the user configures with --with-gc. | |
772580ce | 6179 | AC_ARG_WITH(gc, |
bc6c87c1 | 6180 | [AS_HELP_STRING([--with-gc={page,zone}], |
5cc13354 | 6181 | [this option is not supported anymore. It used to choose |
6182 | the garbage collection mechanism to use with the compiler])], | |
6183 | [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])], | |
6184 | []) | |
772580ce | 6185 | |
7ab76cec | 6186 | # Libraries to use on the host. This will normally be set by the top |
6187 | # level Makefile. Here we simply capture the value for our Makefile. | |
6188 | if test -z "${HOST_LIBS+set}"; then | |
6189 | HOST_LIBS= | |
6190 | fi | |
6191 | AC_SUBST(HOST_LIBS) | |
6192 | ||
add841d2 | 6193 | # Use the system's zlib library. |
92827dbf | 6194 | AM_ZLIB |
add841d2 | 6195 | |
c5ab9ed2 | 6196 | dnl Very limited version of automake's enable-maintainer-mode |
6197 | ||
6198 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
6199 | dnl maintainer-mode is disabled by default | |
6200 | AC_ARG_ENABLE(maintainer-mode, | |
bc6c87c1 | 6201 | [AS_HELP_STRING([--enable-maintainer-mode], |
6202 | [enable make rules and dependencies not useful | |
6203 | (and sometimes confusing) to the casual installer])], | |
c5ab9ed2 | 6204 | maintainer_mode=$enableval, |
6205 | maintainer_mode=no) | |
6206 | ||
6207 | AC_MSG_RESULT($maintainer_mode) | |
6208 | ||
6209 | if test "$maintainer_mode" = "yes"; then | |
6210 | MAINT='' | |
6211 | else | |
6212 | MAINT='#' | |
6213 | fi | |
6214 | AC_SUBST(MAINT)dnl | |
6215 | ||
be5f9e46 | 6216 | dnl Whether to prevent multiple front-ends from linking at the same time |
6217 | ||
6218 | AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once]) | |
6219 | AC_ARG_ENABLE(link-mutex, | |
6220 | [AS_HELP_STRING([--enable-link-mutex], | |
6221 | [avoid linking multiple front-ends at once to avoid thrashing | |
6222 | on the build machine])], | |
6223 | do_link_mutex=$enableval, | |
6224 | do_link_mutex=no) | |
6225 | AC_MSG_RESULT($do_link_mutex) | |
6226 | ||
6227 | if test "$do_link_mutex" = "yes"; then | |
6228 | DO_LINK_MUTEX=true | |
6229 | else | |
6230 | DO_LINK_MUTEX=false | |
6231 | fi | |
6232 | AC_SUBST(DO_LINK_MUTEX) | |
6233 | ||
d8a2ca58 | 6234 | # -------------- |
6235 | # Language hooks | |
6236 | # -------------- | |
6237 | ||
a4ac0141 | 6238 | # Make empty files to contain the specs and options for each language. |
6239 | # Then add #include lines to for a compiler that has specs and/or options. | |
6240 | ||
26526d23 | 6241 | subdirs= |
3272db82 | 6242 | lang_opt_files= |
a4ac0141 | 6243 | lang_specs_files= |
c3cc26e1 | 6244 | lang_tree_files= |
a4ac0141 | 6245 | # These (without "all_") are set in each config-lang.in. |
6246 | # `language' must be a single word so is spelled singularly. | |
6247 | all_languages= | |
a4ac0141 | 6248 | all_compilers= |
210263ee | 6249 | all_outputs='Makefile' |
a4ac0141 | 6250 | # List of language makefile fragments. |
a455468e | 6251 | all_lang_makefrags= |
570af75a | 6252 | # Additional files for gengtype |
eb1bd38b | 6253 | all_gtfiles="$target_gtfiles" |
a4ac0141 | 6254 | |
26526d23 | 6255 | # These are the languages that are set in --enable-languages, |
6256 | # and are available in the GCC tree. | |
6257 | all_selected_languages= | |
6258 | ||
a4ac0141 | 6259 | # Add the language fragments. |
6260 | # Languages are added via two mechanisms. Some information must be | |
6261 | # recorded in makefile variables, these are defined in config-lang.in. | |
6262 | # We accumulate them and plug them into the main Makefile. | |
6263 | # The other mechanism is a set of hooks for each of the main targets | |
6264 | # like `clean', `install', etc. | |
6265 | ||
a4ac0141 | 6266 | language_hooks="Make-hooks" |
6267 | ||
26526d23 | 6268 | for lang in ${srcdir}/*/config-lang.in |
a4ac0141 | 6269 | do |
26526d23 | 6270 | changequote(,)dnl |
5dee13c2 | 6271 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
6272 | ||
26526d23 | 6273 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
6274 | if test "x$lang_alias" = x | |
6275 | then | |
6276 | echo "$lang doesn't set \$language." 1>&2 | |
6277 | exit 1 | |
6278 | fi | |
6279 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
6280 | subdirs="$subdirs $subdir" | |
de4e1ab6 | 6281 | |
6282 | # $gcc_subdir is where the gcc integration files are to be found | |
6283 | # for a language, both for internal compiler purposes (compiler | |
6284 | # sources implementing front-end to GCC tree converters), and for | |
6285 | # build infrastructure purposes (Make-lang.in, etc.) | |
6286 | # | |
6287 | # This will be <subdir> (relative to $srcdir) if a line like | |
6288 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
6289 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
6290 | # otherwise. | |
6291 | # | |
6292 | # Except for the language alias (fetched above), the regular | |
6293 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
6294 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
6295 | # only this and the language alias. | |
6296 | ||
6297 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
6298 | if [ "$gcc_subdir" = "" ]; then | |
6299 | gcc_subdir="$subdir" | |
6300 | fi | |
6301 | ||
26526d23 | 6302 | case ",$enable_languages," in |
6303 | *,$lang_alias,*) | |
6304 | all_selected_languages="$all_selected_languages $lang_alias" | |
de4e1ab6 | 6305 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
6306 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
26526d23 | 6307 | fi |
6308 | ;; | |
6309 | esac | |
6310 | changequote([,])dnl | |
6311 | ||
26526d23 | 6312 | language= |
6313 | boot_language= | |
6314 | compilers= | |
26526d23 | 6315 | outputs= |
6316 | gtfiles= | |
5dee13c2 | 6317 | subdir_requires= |
de4e1ab6 | 6318 | . ${srcdir}/$gcc_subdir/config-lang.in |
26526d23 | 6319 | if test "x$language" = x |
6320 | then | |
de4e1ab6 | 6321 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
26526d23 | 6322 | exit 1 |
6323 | fi | |
5dee13c2 | 6324 | |
6325 | ok=: | |
6326 | case ",$enable_languages," in | |
6327 | *,$lang_alias,*) ;; | |
6328 | *) | |
6329 | for i in $subdir_requires; do | |
3891e7d9 | 6330 | test -f "${srcdir}/$i/config-lang.in" && continue |
5dee13c2 | 6331 | ok=false |
6332 | break | |
6333 | done | |
6334 | ;; | |
6335 | esac | |
6336 | $ok || continue | |
6337 | ||
de4e1ab6 | 6338 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
6339 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
6340 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
755fa783 | 6341 | all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt" |
5dee13c2 | 6342 | fi |
de4e1ab6 | 6343 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
6344 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
5dee13c2 | 6345 | fi |
26526d23 | 6346 | all_languages="$all_languages $language" |
26526d23 | 6347 | all_compilers="$all_compilers $compilers" |
26526d23 | 6348 | all_outputs="$all_outputs $outputs" |
570af75a | 6349 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
7bfefa9d | 6350 | case ",$enable_languages," in |
6351 | *,lto,*) | |
6352 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
6353 | enable_lto=yes | |
6354 | AC_SUBST(enable_lto) | |
6355 | ;; | |
6356 | *) ;; | |
6357 | esac | |
a4ac0141 | 6358 | done |
6359 | ||
21fa82cb | 6360 | check_languages= |
26526d23 | 6361 | for language in $all_selected_languages |
21fa82cb | 6362 | do |
26526d23 | 6363 | check_languages="$check_languages check-$language" |
21fa82cb | 6364 | done |
6365 | ||
bdb69048 | 6366 | selftest_languages= |
6367 | for language in $all_selected_languages | |
6368 | do | |
6369 | selftest_languages="$selftest_languages selftest-$language" | |
6370 | done | |
6371 | ||
d5cd09c5 | 6372 | # We link each language in with a set of hooks, reached indirectly via |
26526d23 | 6373 | # lang.${target}. Only do so for selected languages. |
a4ac0141 | 6374 | |
6375 | rm -f Make-hooks | |
6376 | touch Make-hooks | |
ae6555f9 | 6377 | target_list="all.cross start.encap rest.encap tags \ |
fb433b0b | 6378 | install-common install-man install-info install-pdf install-html dvi \ |
6379 | pdf html uninstall info man srcextra srcman srcinfo \ | |
c02b6f4e | 6380 | mostlyclean clean distclean maintainer-clean install-plugin" |
26526d23 | 6381 | |
a4ac0141 | 6382 | for t in $target_list |
6383 | do | |
6384 | x= | |
26526d23 | 6385 | for lang in $all_selected_languages |
a4ac0141 | 6386 | do |
26526d23 | 6387 | x="$x $lang.$t" |
a4ac0141 | 6388 | done |
6389 | echo "lang.$t: $x" >> Make-hooks | |
6390 | done | |
6391 | ||
755fa783 | 6392 | # -------- |
6393 | # Option include files | |
6394 | # -------- | |
6395 | ||
6396 | ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk | |
6397 | option_includes="option-includes.mk" | |
6398 | AC_SUBST_FILE(option_includes) | |
6399 | ||
d8a2ca58 | 6400 | # -------- |
6401 | # UNSORTED | |
6402 | # -------- | |
6403 | ||
49d87238 | 6404 | # Create .gdbinit. |
80a1cc00 | 6405 | |
49d87238 | 6406 | echo "dir ." > .gdbinit |
6407 | echo "dir ${srcdir}" >> .gdbinit | |
6408 | if test x$gdb_needs_out_file_path = xyes | |
6409 | then | |
6410 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
6411 | fi | |
6412 | if test "x$subdirs" != x; then | |
6413 | for s in $subdirs | |
6414 | do | |
6415 | echo "dir ${srcdir}/$s" >> .gdbinit | |
6416 | done | |
80a1cc00 | 6417 | fi |
49d87238 | 6418 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
b86afe72 | 6419 | echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit |
80a1cc00 | 6420 | |
a31beac3 | 6421 | # Put a breakpoint on __asan_report_error to help with debugging buffer |
6422 | # overflow. | |
6423 | case "$CFLAGS" in | |
6424 | *-fsanitize=address*) | |
6425 | echo "source ${srcdir}/gdbasan.in" >> .gdbinit | |
6426 | ;; | |
6427 | esac | |
6428 | ||
fc5f9e0c | 6429 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
f22b529a | 6430 | AC_SUBST(gcc_tooldir) |
066520ea | 6431 | AC_SUBST(dollar) |
f22b529a | 6432 | |
074386b8 | 6433 | # Find a directory in which to install a shared libgcc. |
6434 | ||
6435 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
bc6c87c1 | 6436 | [AS_HELP_STRING([--enable-version-specific-runtime-libs], |
6437 | [specify that runtime libraries should be | |
6438 | installed in a compiler-specific directory])]) | |
074386b8 | 6439 | |
01dc27ef | 6440 | # Substitute configuration variables |
6441 | AC_SUBST(subdirs) | |
776c30b8 | 6442 | AC_SUBST(srcdir) |
01dc27ef | 6443 | AC_SUBST(all_compilers) |
1f3233d1 | 6444 | AC_SUBST(all_gtfiles) |
a455468e | 6445 | AC_SUBST(all_lang_makefrags) |
434bb88d | 6446 | AC_SUBST(all_languages) |
26526d23 | 6447 | AC_SUBST(all_selected_languages) |
434bb88d | 6448 | AC_SUBST(build_exeext) |
6449 | AC_SUBST(build_install_headers_dir) | |
6450 | AC_SUBST(build_xm_file_list) | |
4dcab8b7 | 6451 | AC_SUBST(build_xm_include_list) |
83b8e55b | 6452 | AC_SUBST(build_xm_defines) |
fbf9447e | 6453 | AC_SUBST(build_file_translate) |
21fa82cb | 6454 | AC_SUBST(check_languages) |
bdb69048 | 6455 | AC_SUBST(selftest_languages) |
434bb88d | 6456 | AC_SUBST(cpp_install_dir) |
a455468e | 6457 | AC_SUBST(xmake_file) |
6458 | AC_SUBST(tmake_file) | |
f555bf81 | 6459 | AC_SUBST(TM_ENDIAN_CONFIG) |
6460 | AC_SUBST(TM_MULTILIB_CONFIG) | |
6461 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
69eb04f7 | 6462 | AC_SUBST(extra_gcc_objs) |
ac0366be | 6463 | AC_SUBST(user_headers_inc_next_pre) |
6464 | AC_SUBST(user_headers_inc_next_post) | |
434bb88d | 6465 | AC_SUBST(extra_headers_list) |
01dc27ef | 6466 | AC_SUBST(extra_objs) |
434bb88d | 6467 | AC_SUBST(extra_programs) |
434bb88d | 6468 | AC_SUBST(float_h_file) |
9371935c | 6469 | AC_SUBST(gcc_config_arguments) |
434bb88d | 6470 | AC_SUBST(gcc_gxx_include_dir) |
36ddd5fe | 6471 | AC_SUBST(gcc_gxx_include_dir_add_sysroot) |
434bb88d | 6472 | AC_SUBST(host_exeext) |
01dc27ef | 6473 | AC_SUBST(host_xm_file_list) |
4dcab8b7 | 6474 | AC_SUBST(host_xm_include_list) |
83b8e55b | 6475 | AC_SUBST(host_xm_defines) |
b197fbcf | 6476 | AC_SUBST(out_host_hook_obj) |
434bb88d | 6477 | AC_SUBST(install) |
3272db82 | 6478 | AC_SUBST(lang_opt_files) |
434bb88d | 6479 | AC_SUBST(lang_specs_files) |
c3cc26e1 | 6480 | AC_SUBST(lang_tree_files) |
01dc27ef | 6481 | AC_SUBST(local_prefix) |
434bb88d | 6482 | AC_SUBST(md_file) |
6483 | AC_SUBST(objc_boehm_gc) | |
6484 | AC_SUBST(out_file) | |
6485 | AC_SUBST(out_object_file) | |
3e87b980 | 6486 | AC_SUBST(common_out_file) |
6487 | AC_SUBST(common_out_object_file) | |
434bb88d | 6488 | AC_SUBST(tm_file_list) |
4dcab8b7 | 6489 | AC_SUBST(tm_include_list) |
8d4f8d46 | 6490 | AC_SUBST(tm_defines) |
83b8e55b | 6491 | AC_SUBST(tm_p_file_list) |
4dcab8b7 | 6492 | AC_SUBST(tm_p_include_list) |
03385ed3 | 6493 | AC_SUBST(tm_d_file_list) |
6494 | AC_SUBST(tm_d_include_list) | |
4dcab8b7 | 6495 | AC_SUBST(xm_file_list) |
6496 | AC_SUBST(xm_include_list) | |
8b24e546 | 6497 | AC_SUBST(xm_defines) |
f3449a3c | 6498 | AC_SUBST(use_gcc_stdint) |
8daa9e98 | 6499 | AC_SUBST(c_target_objs) |
6500 | AC_SUBST(cxx_target_objs) | |
32006f36 | 6501 | AC_SUBST(fortran_target_objs) |
03385ed3 | 6502 | AC_SUBST(d_target_objs) |
83b8e55b | 6503 | AC_SUBST(target_cpu_default) |
01dc27ef | 6504 | |
01dc27ef | 6505 | AC_SUBST_FILE(language_hooks) |
6506 | ||
ba4dfdb7 | 6507 | # Echo link setup. |
6508 | if test x${build} = x${host} ; then | |
6509 | if test x${host} = x${target} ; then | |
6510 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
6511 | else | |
6512 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
6513 | echo " from ${host} to ${target}." 1>&2 | |
6514 | fi | |
01dc27ef | 6515 | else |
ba4dfdb7 | 6516 | if test x${host} = x${target} ; then |
6517 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
6518 | echo " for ${target}." 1>&2 | |
6519 | else | |
6520 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
6521 | echo " from ${host} to ${target}." 1>&2 | |
6522 | fi | |
01dc27ef | 6523 | fi |
6524 | ||
4ee9c684 | 6525 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
6526 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
6527 | ||
71130ef8 | 6528 | AC_ARG_VAR(ISLLIBS,[How to link isl]) |
6529 | AC_ARG_VAR(ISLINC,[How to find isl include files]) | |
429cca51 | 6530 | if test "x${ISLLIBS}" != "x" ; then |
6531 | AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.]) | |
6532 | fi | |
255b6be7 | 6533 | |
ab103e33 | 6534 | GCC_ENABLE_PLUGINS |
9227b6fc | 6535 | AC_SUBST(pluginlibs) |
6536 | AC_SUBST(enable_plugin) | |
6537 | if test x"$enable_plugin" = x"yes"; then | |
6538 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
6539 | fi | |
6540 | ||
d9d975ae | 6541 | |
2bd17377 | 6542 | # Enable --enable-host-shared |
6543 | AC_ARG_ENABLE(host-shared, | |
6544 | [AS_HELP_STRING([--enable-host-shared], | |
6545 | [build host code as shared libraries])], | |
6546 | [PICFLAG=-fPIC], [PICFLAG=]) | |
6547 | AC_SUBST(enable_host_shared) | |
6548 | AC_SUBST(PICFLAG) | |
6549 | ||
6550 | ||
d9d975ae | 6551 | AC_ARG_ENABLE(libquadmath-support, |
6552 | [AS_HELP_STRING([--disable-libquadmath-support], | |
6553 | [disable libquadmath support for Fortran])], | |
6554 | ENABLE_LIBQUADMATH_SUPPORT=$enableval, | |
6555 | ENABLE_LIBQUADMATH_SUPPORT=yes) | |
6556 | if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then | |
6557 | AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1, | |
6558 | [Define to 1 to enable libquadmath support]) | |
6559 | fi | |
6560 | ||
6561 | ||
3cb9bbfa | 6562 | # Specify what hash style to use by default. |
6563 | AC_ARG_WITH([linker-hash-style], | |
6564 | [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}], | |
6565 | [specify the linker hash style])], | |
6566 | [case x"$withval" in | |
6567 | xsysv) | |
6568 | LINKER_HASH_STYLE=sysv | |
6569 | ;; | |
6570 | xgnu) | |
6571 | LINKER_HASH_STYLE=gnu | |
6572 | ;; | |
6573 | xboth) | |
6574 | LINKER_HASH_STYLE=both | |
6575 | ;; | |
6576 | *) | |
6577 | AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style]) | |
6578 | ;; | |
6579 | esac], | |
6580 | [LINKER_HASH_STYLE='']) | |
6581 | if test x"${LINKER_HASH_STYLE}" != x; then | |
6582 | AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE", | |
6583 | [The linker hash style]) | |
6584 | fi | |
6585 | ||
809ccc6c | 6586 | # Specify what should be the default of -fdiagnostics-color option. |
6587 | AC_ARG_WITH([diagnostics-color], | |
6588 | [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}], | |
6589 | [specify the default of -fdiagnostics-color option | |
6590 | auto-if-env stands for -fdiagnostics-color=auto if | |
6591 | GCC_COLOR environment variable is present and | |
6592 | -fdiagnostics-color=never otherwise])], | |
6593 | [case x"$withval" in | |
6594 | xnever) | |
6595 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO | |
6596 | ;; | |
6597 | xauto) | |
6598 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO | |
6599 | ;; | |
6600 | xauto-if-env) | |
6601 | DIAGNOSTICS_COLOR_DEFAULT=-1 | |
6602 | ;; | |
6603 | xalways) | |
6604 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES | |
6605 | ;; | |
6606 | *) | |
6607 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color]) | |
6608 | ;; | |
6609 | esac], | |
6610 | [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO]) | |
6611 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT, | |
6612 | [The default for -fdiagnostics-color option]) | |
6613 | ||
863e76f9 | 6614 | # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit |
6615 | # of jit/jit-playback.c. | |
124c259e | 6616 | gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"` |
6617 | echo "gcc_driver_version: ${gcc_driver_version}" | |
863e76f9 | 6618 | cat > gcc-driver-name.h <<EOF |
124c259e | 6619 | #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}" |
863e76f9 | 6620 | EOF |
6621 | ||
e9abca4f | 6622 | # Check whether --enable-default-pie was given. |
6623 | AC_ARG_ENABLE(default-pie, | |
6624 | [AS_HELP_STRING([--enable-default-pie], | |
6625 | [enable Position Independent Executable as default])], | |
6626 | enable_default_pie=$enableval, | |
6627 | enable_default_pie=no) | |
605b00ec | 6628 | if test x$enable_default_pie = xyes ; then |
e9abca4f | 6629 | AC_DEFINE(ENABLE_DEFAULT_PIE, 1, |
6630 | [Define if your target supports default PIE and it is enabled.]) | |
6631 | fi | |
6632 | AC_SUBST([enable_default_pie]) | |
6633 | ||
6634 | # Check if -fno-PIE works. | |
6635 | AC_CACHE_CHECK([for -fno-PIE option], | |
6636 | [gcc_cv_c_no_fpie], | |
ba637bab | 6637 | [saved_CXXFLAGS="$CXXFLAGS" |
6638 | CXXFLAGS="$CXXFLAGS -fno-PIE" | |
f00f02a3 | 6639 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
e9abca4f | 6640 | [gcc_cv_c_no_fpie=yes], |
6641 | [gcc_cv_c_no_fpie=no]) | |
ba637bab | 6642 | CXXFLAGS="$saved_CXXFLAGS"]) |
e9abca4f | 6643 | if test "$gcc_cv_c_no_fpie" = "yes"; then |
6644 | NO_PIE_CFLAGS="-fno-PIE" | |
6645 | fi | |
6646 | AC_SUBST([NO_PIE_CFLAGS]) | |
6647 | ||
6648 | # Check if -no-pie works. | |
6649 | AC_CACHE_CHECK([for -no-pie option], | |
6650 | [gcc_cv_no_pie], | |
6651 | [saved_LDFLAGS="$LDFLAGS" | |
6652 | LDFLAGS="$LDFLAGS -no-pie" | |
f00f02a3 | 6653 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
e9abca4f | 6654 | [gcc_cv_no_pie=yes], |
6655 | [gcc_cv_no_pie=no]) | |
6656 | LDFLAGS="$saved_LDFLAGS"]) | |
6657 | if test "$gcc_cv_no_pie" = "yes"; then | |
6658 | NO_PIE_FLAG="-no-pie" | |
6659 | fi | |
6660 | AC_SUBST([NO_PIE_FLAG]) | |
6661 | ||
3a1e60cb | 6662 | # Check linker supports '-z bndplt' |
6663 | ld_bndplt_support=no | |
6664 | AC_MSG_CHECKING(linker -z bndplt option) | |
6665 | if test x"$ld_is_gold" = xno; then | |
6666 | if test $in_tree_ld = yes ; then | |
6667 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6668 | ld_bndplt_support=yes | |
6669 | fi | |
6670 | elif test x$gcc_cv_ld != x; then | |
6671 | # Check if linker supports -a bndplt option | |
f50c2ca3 | 6672 | if $gcc_cv_ld --help 2>&1 | grep -- '-z bndplt' > /dev/null; then |
3a1e60cb | 6673 | ld_bndplt_support=yes |
6674 | fi | |
6675 | fi | |
6676 | fi | |
6677 | if test x"$ld_bndplt_support" = xyes; then | |
6678 | AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1, | |
6679 | [Define if your linker supports -z bndplt]) | |
6680 | fi | |
6681 | AC_MSG_RESULT($ld_bndplt_support) | |
6682 | ||
74e22921 | 6683 | # Check linker supports '--push-state'/'--pop-state' |
6684 | ld_pushpopstate_support=no | |
6685 | AC_MSG_CHECKING(linker --push-state/--pop-state options) | |
6686 | if test x"$ld_is_gold" = xno; then | |
6687 | if test $in_tree_ld = yes ; then | |
6688 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6689 | ld_pushpopstate_support=yes | |
6690 | fi | |
6691 | elif test x$gcc_cv_ld != x; then | |
6692 | # Check if linker supports --push-state/--pop-state options | |
f50c2ca3 | 6693 | if $gcc_cv_ld --help 2>&1 | grep -- '--push-state' > /dev/null; then |
74e22921 | 6694 | ld_pushpopstate_support=yes |
6695 | fi | |
6696 | fi | |
6697 | fi | |
6698 | if test x"$ld_pushpopstate_support" = xyes; then | |
6699 | AC_DEFINE(HAVE_LD_PUSHPOPSTATE_SUPPORT, 1, | |
6700 | [Define if your linker supports --push-state/--pop-state]) | |
6701 | fi | |
6702 | AC_MSG_RESULT($ld_pushpopstate_support) | |
6703 | ||
01dc27ef | 6704 | # Configure the subdirectories |
6705 | # AC_CONFIG_SUBDIRS($subdirs) | |
6706 | ||
6707 | # Create the Makefile | |
4fc83d8e | 6708 | # and configure language subdirectories |
1211e6bc | 6709 | AC_CONFIG_FILES($all_outputs) |
6710 | ||
6711 | AC_CONFIG_COMMANDS([default], | |
805483cf | 6712 | [ |
00ba4d3e | 6713 | case ${CONFIG_HEADERS} in |
6714 | *auto-host.h:config.in*) | |
6715 | echo > cstamp-h ;; | |
805483cf | 6716 | esac |
a455468e | 6717 | # Make sure all the subdirs exist. |
3e87b980 | 6718 | for d in $subdirs doc build common c-family |
a455468e | 6719 | do |
a455468e | 6720 | test -d $d || mkdir $d |
a455468e | 6721 | done |
a1a7e9d5 | 6722 | ], |
26be379c | 6723 | [subdirs='$subdirs']) |
1211e6bc | 6724 | AC_OUTPUT |
755fa783 | 6725 |