]>
Commit | Line | Data |
---|---|---|
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( |
56409006 | 485 | m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings ], |
62c34df8 | 486 | [-Wcast-qual -Wno-error=format-diag $wf_opt])), |
487 | [loose_warn]) | |
9fce6407 | 488 | ACX_PROG_CC_WARNING_OPTS( |
62c34df8 | 489 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ], |
490 | [-Wno-error=format-diag])), [c_loose_warn]) | |
a487af0e | 491 | ACX_PROG_CXX_WARNING_OPTS( |
1c486c58 | 492 | m4_quote(m4_do([-Wmissing-format-attribute ], |
493 | [-Woverloaded-virtual])), [strict_warn]) | |
7ab76cec | 494 | ACX_PROG_CC_WARNING_OPTS( |
495 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
a487af0e | 496 | ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC( |
c3aa71d4 | 497 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
498 | [-Wno-overlength-strings])), [strict_warn]) | |
a487af0e | 499 | ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
c7cc973b | 500 | |
501 | # The above macros do nothing if the compiler is not GCC. However, the | |
7ab76cec | 502 | # Makefile has more goo to add other flags, so these variables are used |
503 | # to enable warnings only for GCC. | |
0fa54ff1 | 504 | warn_cflags= |
7ab76cec | 505 | warn_cxxflags= |
0fa54ff1 | 506 | if test "x$GCC" = "xyes"; then |
507 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
7ab76cec | 508 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
0fa54ff1 | 509 | fi |
510 | AC_SUBST(warn_cflags) | |
7ab76cec | 511 | AC_SUBST(warn_cxxflags) |
0fa54ff1 | 512 | |
7c801b60 | 513 | # Disable exceptions and RTTI if building with g++ |
514 | ACX_PROG_CC_WARNING_OPTS( | |
3e15d79c | 515 | m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])), |
516 | [noexception_flags]) | |
7c801b60 | 517 | |
e3ca137a | 518 | # Enable expensive internal checks |
1af67e62 | 519 | is_release= |
520 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
521 | is_release=yes | |
522 | fi | |
a179eb24 | 523 | |
485205d1 | 524 | AC_ARG_ENABLE(checking, |
bc6c87c1 | 525 | [AS_HELP_STRING([[--enable-checking[=LIST]]], |
526 | [enable expensive run-time checks. With LIST, | |
527 | enable only specific categories of checks. | |
528 | Categories are: yes,no,all,none,release. | |
c05979a1 | 529 | Flags are: assert,df,extra,fold,gc,gcac,gimple,misc, |
bc6c87c1 | 530 | rtlflag,rtl,runtime,tree,valgrind,types])], |
a1fa05f0 | 531 | [ac_checking_flags="${enableval}"],[ |
532 | # Determine the default checks. | |
533 | if test x$is_release = x ; then | |
c05979a1 | 534 | ac_checking_flags=yes,extra |
a1fa05f0 | 535 | else |
536 | ac_checking_flags=release | |
537 | fi]) | |
a1fa05f0 | 538 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
624a5fae | 539 | for check in release $ac_checking_flags |
a1fa05f0 | 540 | do |
541 | case $check in | |
5391b316 | 542 | # these set all the flags to specific states |
314966f4 | 543 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
c05979a1 | 544 | ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ; |
75a70cf9 | 545 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
fcd42b1e | 546 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 547 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
80296012 | 548 | ac_types_checking=1 ;; |
5ccba2dc | 549 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
c05979a1 | 550 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
75a70cf9 | 551 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
fcd42b1e | 552 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
f03e0ae4 | 553 | ac_tree_checking= ; ac_valgrind_checking= ; |
554 | ac_types_checking= ;; | |
5ccba2dc | 555 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
c05979a1 | 556 | ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ; |
75a70cf9 | 557 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
5391b316 | 558 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 559 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
560 | ac_types_checking=1 ;; | |
5ccba2dc | 561 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
c05979a1 | 562 | ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ; |
75a70cf9 | 563 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
5391b316 | 564 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
f03e0ae4 | 565 | ac_tree_checking= ; ac_valgrind_checking= ; |
566 | ac_types_checking= ;; | |
5391b316 | 567 | # these enable particular checks |
a1fa05f0 | 568 | assert) ac_assert_checking=1 ;; |
c05979a1 | 569 | df) ac_df_checking=1 ;; |
570 | extra) ac_extra_checking=1 ;; | |
a1fa05f0 | 571 | fold) ac_fold_checking=1 ;; |
572 | gc) ac_gc_checking=1 ;; | |
573 | gcac) ac_gc_always_collect=1 ;; | |
75a70cf9 | 574 | gimple) ac_gimple_checking=1 ;; |
a1fa05f0 | 575 | misc) ac_checking=1 ;; |
a1fa05f0 | 576 | rtl) ac_rtl_checking=1 ;; |
5391b316 | 577 | rtlflag) ac_rtlflag_checking=1 ;; |
06350693 | 578 | runtime) ac_runtime_checking=1 ;; |
a1fa05f0 | 579 | tree) ac_tree_checking=1 ;; |
f03e0ae4 | 580 | types) ac_types_checking=1 ;; |
5391b316 | 581 | valgrind) ac_valgrind_checking=1 ;; |
a1fa05f0 | 582 | *) AC_MSG_ERROR(unknown check category $check) ;; |
583 | esac | |
584 | done | |
585 | IFS="$ac_save_IFS" | |
586 | ||
0d74b24d | 587 | nocommon_flag="" |
42f1312d | 588 | if test x$ac_checking != x ; then |
9ccb8d8d | 589 | AC_DEFINE(CHECKING_P, 1, |
590 | [Define to 0/1 if you want more run-time sanity checks. This one gets a grab | |
591 | bag of miscellaneous but relatively cheap checks.]) | |
0d74b24d | 592 | nocommon_flag=-fno-common |
92a110bb | 593 | else |
594 | AC_DEFINE(CHECKING_P, 0) | |
42f1312d | 595 | fi |
0d74b24d | 596 | AC_SUBST(nocommon_flag) |
9ccb8d8d | 597 | if test x$ac_extra_checking != x ; then |
598 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 1, | |
599 | [Define to 0/1 if you want extra run-time checking that might affect code | |
600 | generation.]) | |
601 | else | |
602 | AC_DEFINE(ENABLE_EXTRA_CHECKING, 0) | |
603 | fi | |
5ccba2dc | 604 | if test x$ac_df_checking != x ; then |
605 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
606 | [Define if you want more run-time sanity checks for dataflow.]) | |
607 | fi | |
997731eb | 608 | if test x$ac_assert_checking != x ; then |
609 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
610 | [Define if you want assertions enabled. This is a cheap check.]) | |
611 | fi | |
75a70cf9 | 612 | if test x$ac_gimple_checking != x ; then |
613 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
614 | [Define if you want operations on GIMPLE (the basic data structure of | |
615 | the high-level optimizers) to be checked for dynamic type safety at | |
616 | runtime. This is moderately expensive.]) | |
617 | fi | |
fcd42b1e | 618 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
06350693 | 619 | if test x$ac_runtime_checking != x ; then |
620 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
621 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
622 | fi | |
42f1312d | 623 | if test x$ac_tree_checking != x ; then |
624 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
625 | [Define if you want all operations on trees (the basic data | |
626 | structure of the front ends) to be checked for dynamic type safety | |
894a34ef | 627 | at runtime. This is moderately expensive. |
4e7212d1 | 628 | ]) |
1410e798 | 629 | TREECHECKING=yes |
42f1312d | 630 | fi |
f03e0ae4 | 631 | if test x$ac_types_checking != x ; then |
632 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
633 | [Define if you want all gimple types to be verified after gimplifiation. | |
634 | This is cheap. | |
635 | ]) | |
636 | fi | |
1410e798 | 637 | AC_SUBST(TREECHECKING) |
42f1312d | 638 | if test x$ac_rtl_checking != x ; then |
639 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
640 | [Define if you want all operations on RTL (the basic data structure | |
641 | of the optimizer and back end) to be checked for dynamic type safety | |
642 | at runtime. This is quite expensive.]) | |
643 | fi | |
b0e7e012 | 644 | if test x$ac_rtlflag_checking != x ; then |
645 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
646 | [Define if you want RTL flag accesses to be checked against the RTL | |
647 | codes that are supported for each access macro. This is relatively | |
648 | cheap.]) | |
649 | fi | |
42f1312d | 650 | if test x$ac_gc_checking != x ; then |
651 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
652 | [Define if you want the garbage collector to do object poisoning and | |
653 | other memory allocation checks. This is quite expensive.]) | |
654 | fi | |
655 | if test x$ac_gc_always_collect != x ; then | |
656 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
657 | [Define if you want the garbage collector to operate in maximally | |
658 | paranoid mode, validating the entire heap and collecting garbage at | |
659 | every opportunity. This is extremely expensive.]) | |
660 | fi | |
fc3df357 | 661 | if test x$ac_fold_checking != x ; then |
662 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
663 | [Define if you want fold checked that it never destructs its argument. | |
664 | This is quite expensive.]) | |
665 | fi | |
0fa54ff1 | 666 | valgrind_path_defines= |
667 | valgrind_command= | |
3f720cf7 | 668 | |
669 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
670 | dnl # an if statement. This was the source of very frustrating bugs | |
671 | dnl # in converting to autoconf 2.5x! | |
672 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
673 | ||
b90976fa | 674 | # It is certainly possible that there's valgrind but no valgrind.h. |
675 | # GCC relies on making annotations so we must have both. | |
676 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
677 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
678 | [[#include <valgrind/memcheck.h> | |
a519c4d3 | 679 | #ifndef VALGRIND_DISCARD |
680 | #error VALGRIND_DISCARD not defined | |
11e66330 | 681 | #endif]])], |
a519c4d3 | 682 | [gcc_cv_header_valgrind_memcheck_h=yes], |
683 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
b90976fa | 684 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) |
685 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
686 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
687 | [[#include <memcheck.h> | |
8adead19 | 688 | #ifndef VALGRIND_DISCARD |
689 | #error VALGRIND_DISCARD not defined | |
11e66330 | 690 | #endif]])], |
691 | [gcc_cv_header_memcheck_h=yes], | |
692 | [gcc_cv_header_memcheck_h=no]) | |
b90976fa | 693 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
694 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
695 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
696 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
697 | fi | |
698 | if test $gcc_cv_header_memcheck_h = yes; then | |
699 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
700 | [Define if valgrind's memcheck.h header is installed.]) | |
701 | fi | |
702 | ||
703 | if test x$ac_valgrind_checking != x ; then | |
0fa54ff1 | 704 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
705 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a519c4d3 | 706 | if test "x$valgrind_path" = "x" \ |
707 | || (test $have_valgrind_h = no \ | |
708 | && test $gcc_cv_header_memcheck_h = no \ | |
709 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
710 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
0fa54ff1 | 711 | fi |
712 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
713 | valgrind_command="$valgrind_path -q" | |
714 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
715 | [Define if you want to run subprograms and generated programs | |
716 | through valgrind (a memory checker). This is extremely expensive.]) | |
717 | fi | |
718 | AC_SUBST(valgrind_path_defines) | |
719 | AC_SUBST(valgrind_command) | |
59420fa7 | 720 | |
d5a37d75 | 721 | # Enable code coverage collection |
722 | AC_ARG_ENABLE(coverage, | |
bc6c87c1 | 723 | [AS_HELP_STRING([[--enable-coverage[=LEVEL]]], |
724 | [enable compiler's code coverage collection. | |
725 | Use to measure compiler performance and locate | |
726 | unused parts of the compiler. With LEVEL, specify | |
727 | optimization. Values are opt, noopt, | |
728 | default is noopt])], | |
d5a37d75 | 729 | [case "${enableval}" in |
034b0f6e | 730 | yes|noopt) |
17187f6a | 731 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions" |
034b0f6e | 732 | ;; |
733 | opt) | |
17187f6a | 734 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions" |
034b0f6e | 735 | ;; |
736 | no) | |
737 | # a.k.a. --disable-coverage | |
738 | coverage_flags="" | |
739 | ;; | |
740 | *) | |
741 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
742 | ;; | |
d5a37d75 | 743 | esac], |
5328265b | 744 | [coverage_flags=""]) |
d5a37d75 | 745 | AC_SUBST(coverage_flags) |
746 | ||
86736f9e | 747 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
bc6c87c1 | 748 | [AS_HELP_STRING([--enable-gather-detailed-mem-stats], |
749 | [enable detailed memory allocation stats gathering])], [], | |
86736f9e | 750 | [enable_gather_detailed_mem_stats=no]) |
ecd52ea9 | 751 | gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi` |
752 | AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats, | |
753 | [Define to enable detailed memory allocation stats gathering.]) | |
86736f9e | 754 | |
b90976fa | 755 | AC_ARG_ENABLE(valgrind-annotations, |
756 | [AS_HELP_STRING([--enable-valgrind-annotations], | |
757 | [enable valgrind runtime interaction])], [], | |
758 | [enable_valgrind_annotations=no]) | |
759 | if test x$enable_valgrind_annotations != xno \ | |
760 | || test x$ac_valgrind_checking != x; then | |
761 | if (test $have_valgrind_h = no \ | |
762 | && test $gcc_cv_header_memcheck_h = no \ | |
763 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
764 | AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
765 | fi | |
766 | AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1, | |
767 | [Define to get calls to the valgrind runtime enabled.]) | |
768 | fi | |
769 | ||
966842d4 | 770 | # ------------------------------- |
771 | # Miscenalleous configure options | |
772 | # ------------------------------- | |
7349ace9 | 773 | |
774 | # With stabs | |
775 | AC_ARG_WITH(stabs, | |
bc6c87c1 | 776 | [AS_HELP_STRING([--with-stabs], |
777 | [arrange to use stabs instead of host debug format])], | |
7349ace9 | 778 | stabs="$with_stabs", |
779 | stabs=no) | |
780 | ||
7349ace9 | 781 | # Determine whether or not multilibs are enabled. |
782 | AC_ARG_ENABLE(multilib, | |
bc6c87c1 | 783 | [AS_HELP_STRING([--enable-multilib], |
784 | [enable library support for multiple ABIs])], | |
7349ace9 | 785 | [], [enable_multilib=yes]) |
786 | AC_SUBST(enable_multilib) | |
f7b90398 | 787 | |
77adc39e | 788 | # Determine whether or not multiarch is enabled. |
789 | AC_ARG_ENABLE(multiarch, | |
790 | [AS_HELP_STRING([--enable-multiarch], | |
791 | [enable support for multiarch paths])], | |
a2869930 | 792 | [case "${enableval}" in |
793 | yes|no|auto) enable_multiarch=$enableval;; | |
794 | *) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;; | |
77adc39e | 795 | esac], [enable_multiarch=auto]) |
796 | if test x${enable_multiarch} = xauto; then | |
797 | if test x${with_native_system_header_dir} != x; then | |
798 | ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)" | |
799 | enable_multiarch=no | |
800 | fi | |
801 | if test x$host != x$target && test "x$with_sysroot" = x; then | |
802 | ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)" | |
803 | enable_multiarch=no | |
804 | fi | |
805 | fi | |
806 | AC_MSG_CHECKING(for multiarch configuration) | |
807 | AC_SUBST(enable_multiarch) | |
808 | AC_MSG_RESULT($enable_multiarch$ma_msg_suffix) | |
809 | ||
810 | # needed for setting the multiarch name for soft-float/hard-float ABIs | |
af69b10a | 811 | AC_SUBST(with_cpu) |
77adc39e | 812 | AC_SUBST(with_float) |
813 | ||
de2dc831 | 814 | # default stack clash protection guard size as power of twos in bytes. |
815 | # Please keep these in sync with params.def. | |
816 | stk_clash_min=12 | |
817 | stk_clash_max=30 | |
818 | ||
819 | # Keep the default value when the option is not used to 0, this allows us to | |
820 | # distinguish between the cases where the user specifially set a value via | |
821 | # configure and when the normal default value is used. | |
822 | AC_ARG_WITH(stack-clash-protection-guard-size, | |
823 | [AS_HELP_STRING([--with-stack-clash-protection-guard-size=size], | |
824 | [Set the default stack clash protection guard size for specific targets as a power of two in bytes.])], | |
825 | [DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0]) | |
826 | if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \ | |
827 | && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \ | |
828 | || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then | |
829 | AC_MSG_ERROR(m4_normalize([ | |
830 | Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \ | |
831 | Must be between $stk_clash_min and $stk_clash_max.])) | |
832 | fi | |
833 | ||
834 | AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE, | |
835 | [Define to larger than zero set the default stack clash protector size.]) | |
836 | ||
70ac8784 | 837 | # Enable __cxa_atexit for C++. |
838 | AC_ARG_ENABLE(__cxa_atexit, | |
bc6c87c1 | 839 | [AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])], |
70ac8784 | 840 | [], []) |
bc5ae993 | 841 | |
e38498a2 | 842 | # Enable C extension for decimal float if target supports it. |
23340821 | 843 | GCC_AC_ENABLE_DECIMAL_FLOAT([$target]) |
e38498a2 | 844 | |
10de71e1 | 845 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
e38498a2 | 846 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
847 | [Define to 1 to enable decimal float extension to C.]) | |
848 | ||
a87eb011 | 849 | # Use default_decimal_float for dependency. |
850 | enable_decimal_float=$default_decimal_float | |
851 | ||
10de71e1 | 852 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` |
853 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
854 | [Define to 1 to specify that we are using the BID decimal floating | |
855 | point format instead of DPD]) | |
856 | ||
9421ebb9 | 857 | # Enable C extension for fixed-point arithmetic. |
858 | AC_ARG_ENABLE(fixed-point, | |
bc6c87c1 | 859 | [AS_HELP_STRING([--enable-fixed-point], |
860 | [enable fixed-point arithmetic extension to C])], | |
861 | [], | |
9421ebb9 | 862 | [ |
863 | case $target in | |
bbbe4599 | 864 | arm*) |
865 | enable_fixed_point=yes | |
866 | ;; | |
867 | ||
9421ebb9 | 868 | mips*-*-*) |
5641963c | 869 | enable_fixed_point=yes |
9421ebb9 | 870 | ;; |
871 | *) | |
e6425baf | 872 | AC_MSG_WARN([fixed-point is not supported for this target, ignored]) |
9421ebb9 | 873 | enable_fixed_point=no |
874 | ;; | |
875 | esac | |
876 | ]) | |
877 | AC_SUBST(enable_fixed_point) | |
878 | ||
879 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
880 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
881 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
882 | ||
3e637c99 | 883 | # Enable threads |
884 | # Pass with no value to take the default | |
885 | # Pass with a value to specify a thread package | |
886 | AC_ARG_ENABLE(threads, | |
bc6c87c1 | 887 | [AS_HELP_STRING([[--enable-threads[=LIB]]], |
888 | [enable thread usage for target GCC, | |
889 | using LIB thread package])],, | |
334c8279 | 890 | [enable_threads='']) |
3e637c99 | 891 | |
c024e802 | 892 | AC_ARG_ENABLE(tls, |
bc6c87c1 | 893 | [AS_HELP_STRING([--enable-tls], |
894 | [enable or disable generation of tls code | |
895 | overriding the assembler check for tls support])], | |
c024e802 | 896 | [ |
897 | case $enable_tls in | |
898 | yes | no) ;; | |
899 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
900 | Valid choices are 'yes' and 'no'.]) ;; | |
901 | esac | |
902 | ], [enable_tls='']) | |
903 | ||
940c7236 | 904 | AC_ARG_ENABLE(vtable-verify, |
905 | [AS_HELP_STRING([--enable-vtable-verify], | |
906 | [enable vtable verification feature])],, | |
907 | [enable_vtable_verify=no]) | |
908 | vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi` | |
909 | AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify, | |
910 | [Define 0/1 if vtable verification feature is enabled.]) | |
911 | ||
5c872430 | 912 | AC_ARG_ENABLE(objc-gc, |
bc6c87c1 | 913 | [AS_HELP_STRING([--enable-objc-gc], |
914 | [enable the use of Boehm's garbage collector with | |
915 | the GNU Objective-C runtime])], | |
7a28a1b6 | 916 | if test x$enable_objc_gc = xno; then |
5c872430 | 917 | objc_boehm_gc='' |
918 | else | |
919 | objc_boehm_gc=1 | |
920 | fi, | |
921 | objc_boehm_gc='') | |
922 | ||
27b15aee | 923 | AC_ARG_WITH(dwarf2, |
bc6c87c1 | 924 | [AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])], |
a81417f9 | 925 | dwarf2="$with_dwarf2", |
27b15aee | 926 | dwarf2=no) |
927 | ||
a1415e6d | 928 | AC_ARG_ENABLE(shared, |
bc6c87c1 | 929 | [AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])], |
10393ad5 | 930 | [ |
931 | case $enable_shared in | |
932 | yes | no) ;; | |
933 | *) | |
934 | enable_shared=no | |
935 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
936 | for pkg in $enableval; do | |
937 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
938 | enable_shared=yes | |
939 | fi | |
940 | done | |
941 | IFS="$ac_save_ifs" | |
942 | ;; | |
943 | esac | |
944 | ], [enable_shared=yes]) | |
a1415e6d | 945 | AC_SUBST(enable_shared) |
946 | ||
bab25aa4 | 947 | AC_ARG_ENABLE(gcov, |
948 | [ --disable-gcov don't provide libgcov and related host tools], | |
949 | [], [enable_gcov=yes]) | |
950 | AC_SUBST(enable_gcov) | |
951 | ||
a24a71cc | 952 | AC_ARG_WITH(specs, |
953 | [AS_HELP_STRING([--with-specs=SPECS], | |
954 | [add SPECS to driver command-line processing])], | |
955 | [CONFIGURE_SPECS=$withval], | |
956 | [CONFIGURE_SPECS=] | |
957 | ) | |
958 | AC_SUBST(CONFIGURE_SPECS) | |
959 | ||
d25dc80e | 960 | ACX_PKGVERSION([GCC]) |
88d75d9d | 961 | ACX_BUGURL([https://gcc.gnu.org/bugs/]) |
d25dc80e | 962 | |
c24c5e46 | 963 | # Sanity check enable_languages in case someone does not run the toplevel |
964 | # configure # script. | |
965 | AC_ARG_ENABLE(languages, | |
bc6c87c1 | 966 | [AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])], |
c24c5e46 | 967 | [case ,${enable_languages}, in |
968 | ,,|,yes,) | |
969 | # go safe -- we cannot be much sure without the toplevel | |
970 | # configure's | |
971 | # analysis of which target libs are present and usable | |
972 | enable_languages=c | |
973 | ;; | |
974 | *,all,*) | |
975 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
976 | ;; | |
977 | *,c,*) | |
978 | ;; | |
979 | *) | |
980 | enable_languages=c,${enable_languages} | |
981 | ;; | |
982 | esac], | |
983 | [enable_languages=c]) | |
984 | ||
a3d93be3 | 985 | if test x"$enable_as_accelerator_for" != x; then |
986 | AC_DEFINE(ACCEL_COMPILER, 1, | |
987 | [Define if this compiler should be built as the offload target compiler.]) | |
988 | enable_as_accelerator=yes | |
989 | case "${target}" in | |
990 | *-intelmicemul-*) | |
991 | # In this case we expect offload compiler to be built as native, so we | |
992 | # need to rename the driver to avoid clashes with host's drivers. | |
993 | program_transform_name="s&^&${target}-&" ;; | |
994 | esac | |
995 | sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#" | |
996 | program_transform_name=`echo $program_transform_name | sed $sedscript` | |
997 | accel_dir_suffix=/accel/${target_noncanonical} | |
998 | real_target_noncanonical=${enable_as_accelerator_for} | |
999 | fi | |
1000 | AC_SUBST(enable_as_accelerator) | |
1001 | AC_SUBST(real_target_noncanonical) | |
1002 | AC_SUBST(accel_dir_suffix) | |
1003 | ||
1004 | for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do | |
1005 | tgt=`echo $tgt | sed 's/=.*//'` | |
56686608 | 1006 | |
1007 | if echo "$tgt" | grep "^hsa" > /dev/null ; then | |
1008 | enable_hsa=1 | |
1009 | else | |
1010 | enable_offloading=1 | |
1011 | fi | |
1012 | ||
a3d93be3 | 1013 | if test x"$offload_targets" = x; then |
1014 | offload_targets=$tgt | |
1015 | else | |
daa8f58f | 1016 | offload_targets="$offload_targets,$tgt" |
a3d93be3 | 1017 | fi |
1018 | done | |
1019 | AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", | |
daa8f58f | 1020 | [Define to offload targets, separated by commas.]) |
56686608 | 1021 | if test x"$enable_offloading" != x; then |
a3d93be3 | 1022 | AC_DEFINE(ENABLE_OFFLOADING, 1, |
1023 | [Define this to enable support for offloading.]) | |
5f3001a9 | 1024 | else |
1025 | AC_DEFINE(ENABLE_OFFLOADING, 0, | |
1026 | [Define this to enable support for offloading.]) | |
a3d93be3 | 1027 | fi |
1028 | ||
56686608 | 1029 | if test x"$enable_hsa" = x1 ; then |
1030 | AC_DEFINE(ENABLE_HSA, 1, | |
1031 | [Define this to enable support for generating HSAIL.]) | |
1032 | fi | |
1033 | ||
f555bf81 | 1034 | AC_ARG_WITH(multilib-list, |
bb009361 | 1035 | [AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])], |
f555bf81 | 1036 | :, |
1037 | with_multilib_list=default) | |
1038 | ||
966842d4 | 1039 | # ------------------------- |
1040 | # Checks for other programs | |
1041 | # ------------------------- | |
6f63674e | 1042 | |
0dbd1c74 | 1043 | AC_PROG_MAKE_SET |
1044 | ||
01dc27ef | 1045 | # Find some useful tools |
1046 | AC_PROG_AWK | |
e8b212b8 | 1047 | # We need awk to create options.c and options.h. |
b007b385 | 1048 | # Bail out if it's missing. |
1049 | case ${AWK} in | |
1050 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
1051 | esac | |
1052 | ||
f9708620 | 1053 | gcc_AC_PROG_LN_S |
599a3eac | 1054 | ACX_PROG_LN($LN_S) |
01dc27ef | 1055 | AC_PROG_RANLIB |
59bc2a23 | 1056 | ranlib_flags="" |
72318bfa | 1057 | AC_SUBST(ranlib_flags) |
1058 | ||
f9708620 | 1059 | gcc_AC_PROG_INSTALL |
01dc27ef | 1060 | |
8fea036f | 1061 | # See if cmp has --ignore-initial. |
1062 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
1063 | ||
72f3368f | 1064 | # See if we have the mktemp command. |
1065 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
1066 | ||
a1ad7483 | 1067 | # See if makeinfo has been installed and is modern enough |
1068 | # that we can use it. | |
c7cc973b | 1069 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
049ccec1 | 1070 | [GNU texinfo.* \([0-9][0-9.]*\)], |
69f31627 | 1071 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
049ccec1 | 1072 | if test $gcc_cv_prog_makeinfo_modern = no; then |
1073 | AC_MSG_WARN([ | |
1074 | *** Makeinfo is missing or too old. | |
c94ba072 | 1075 | *** Info documentation will not be built.]) |
049ccec1 | 1076 | BUILD_INFO= |
049ccec1 | 1077 | else |
a1ad7483 | 1078 | BUILD_INFO=info |
049ccec1 | 1079 | fi |
a1ad7483 | 1080 | AC_SUBST(BUILD_INFO) |
049ccec1 | 1081 | |
0dd06be9 | 1082 | # Is pod2man recent enough to regenerate manpages? |
1083 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7e8ebf06 | 1084 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fefb5ea6 | 1085 | AC_MSG_RESULT(yes) |
a1ad7483 | 1086 | GENERATED_MANPAGES=generated-manpages |
fefb5ea6 | 1087 | else |
1088 | AC_MSG_RESULT(no) | |
1089 | GENERATED_MANPAGES= | |
1090 | fi | |
a1ad7483 | 1091 | AC_SUBST(GENERATED_MANPAGES) |
fefb5ea6 | 1092 | |
c7cc973b | 1093 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
1094 | ||
345a1501 | 1095 | # How about lex? |
1096 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
1097 | dnl LEXLIB is not useful in gcc. | |
a1ad7483 | 1098 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
345a1501 | 1099 | |
1100 | # Bison? | |
a1ad7483 | 1101 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
1102 | ||
1103 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
1104 | # check for build == host before using them. | |
345a1501 | 1105 | |
6ac26439 | 1106 | # NM |
28c79bfe | 1107 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
1108 | && test -d ../binutils ; then | |
4f132c11 | 1109 | NM='${objdir}/../binutils/nm-new' |
6ac26439 | 1110 | else |
1111 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
1112 | fi | |
1113 | ||
1114 | # AR | |
28c79bfe | 1115 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
1116 | && test -d ../binutils ; then | |
4f132c11 | 1117 | AR='${objdir}/../binutils/ar' |
6ac26439 | 1118 | else |
1119 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
1120 | fi | |
1121 | ||
863e76f9 | 1122 | # The jit documentation looks better if built with sphinx, but can be |
1123 | # built with texinfo if sphinx is not available. | |
1124 | # Set "doc_build_sys" to "sphinx" or "texinfo" accordingly. | |
1125 | AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo) | |
6ac26439 | 1126 | |
966842d4 | 1127 | # -------------------- |
1128 | # Checks for C headers | |
1129 | # -------------------- | |
1130 | ||
2cd18f76 | 1131 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
1132 | # works later. *sigh* This needs to come before all header checks. | |
1133 | AC_PROG_CPP_WERROR | |
1134 | ||
966842d4 | 1135 | AC_HEADER_STDC |
1136 | AC_HEADER_TIME | |
d856c8a6 | 1137 | ACX_HEADER_STRING |
966842d4 | 1138 | AC_HEADER_SYS_WAIT |
f3b719b3 | 1139 | AC_HEADER_TIOCGWINSZ |
e5d424c9 | 1140 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
eb4b8219 | 1141 | fcntl.h ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
966842d4 | 1142 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
45cde32d | 1143 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
966842d4 | 1144 | |
1145 | # Check for thread headers. | |
1146 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
1147 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
1148 | ||
1149 | # These tests can't be done till we know if we have limits.h. | |
1150 | gcc_AC_C_CHAR_BIT | |
fd158959 | 1151 | AC_C_BIGENDIAN |
966842d4 | 1152 | |
60f35dba | 1153 | # ---------------------- |
1154 | # Checks for C++ headers | |
1155 | # ---------------------- | |
1156 | ||
54486c25 | 1157 | dnl Autoconf will give an error in the configure script if there is no |
1158 | dnl C++ preprocessor. Hack to prevent that. | |
1159 | m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl | |
1160 | AC_PROG_CXXCPP | |
1161 | m4_popdef([AC_MSG_ERROR])[]dnl | |
1162 | ||
60f35dba | 1163 | AC_CHECK_HEADERS(unordered_map) |
1164 | AC_CHECK_HEADERS(tr1/unordered_map) | |
1165 | AC_CHECK_HEADERS(ext/hash_map) | |
1166 | ||
b8bd120b | 1167 | # -------- |
1168 | # Dependency checking. | |
1169 | # -------- | |
1170 | ||
b8bd120b | 1171 | ZW_CREATE_DEPDIR |
1172 | AC_CONFIG_COMMANDS([gccdepdir],[ | |
1173 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR | |
1174 | for lang in $subdirs c-family common | |
1175 | do | |
1176 | ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR | |
1177 | done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR]) | |
1178 | ||
b0e45289 | 1179 | ZW_PROG_COMPILER_DEPENDENCIES([CXX]) |
60f35dba | 1180 | |
966842d4 | 1181 | # -------- |
1182 | # UNSORTED | |
1183 | # -------- | |
1184 | ||
966842d4 | 1185 | |
45449d9f | 1186 | # These libraries may be used by collect2. |
1187 | # We may need a special search path to get them linked. | |
1188 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1189 | [save_LIBS="$LIBS" | |
8e01c6f6 | 1190 | for libs in '' -lld -lmld \ |
45449d9f | 1191 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1192 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1193 | do | |
1194 | LIBS="$libs" | |
1195 | AC_TRY_LINK_FUNC(ldopen, | |
1196 | [gcc_cv_collect2_libs="$libs"; break]) | |
1197 | done | |
1198 | LIBS="$save_LIBS" | |
1199 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1200 | case $gcc_cv_collect2_libs in | |
1201 | "none required") ;; | |
1202 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1203 | esac | |
1204 | AC_SUBST(COLLECT2_LIBS) | |
1205 | ||
8e01c6f6 | 1206 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1207 | # -lexc. So test for it. | |
1208 | save_LIBS="$LIBS" | |
1209 | LIBS= | |
1210 | AC_SEARCH_LIBS(exc_resume, exc) | |
1211 | GNAT_LIBEXC="$LIBS" | |
1212 | LIBS="$save_LIBS" | |
1213 | AC_SUBST(GNAT_LIBEXC) | |
1214 | ||
76fd9e61 | 1215 | # To support -mcpu=native on Solaris/SPARC, we need libkstat. |
1216 | save_LIBS="$LIBS" | |
1217 | LIBS= | |
1218 | AC_SEARCH_LIBS(kstat_open, kstat) | |
1219 | EXTRA_GCC_LIBS="$LIBS" | |
1220 | LIBS="$save_LIBS" | |
1221 | AC_SUBST(EXTRA_GCC_LIBS) | |
1222 | ||
96b74343 | 1223 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1224 | # they're both in the same place. jcf-dump needs them. | |
1225 | save_LIBS="$LIBS" | |
1226 | LIBS= | |
1227 | AC_SEARCH_LIBS(ldexp, m) | |
1228 | LDEXP_LIB="$LIBS" | |
1229 | LIBS="$save_LIBS" | |
1230 | AC_SUBST(LDEXP_LIB) | |
1231 | ||
d62c0949 | 1232 | # Some systems need dlopen |
1233 | save_LIBS="$LIBS" | |
1234 | LIBS= | |
1235 | AC_SEARCH_LIBS(dlopen, dl) | |
1236 | DL_LIB="$LIBS" | |
1237 | LIBS="$save_LIBS" | |
1238 | AC_SUBST(DL_LIB) | |
1239 | ||
a3477a0e | 1240 | # Use <inttypes.h> only if it exists, |
d515e136 | 1241 | # doesn't clash with <sys/types.h>, declares intmax_t and defines |
1242 | # PRId64 | |
a3477a0e | 1243 | AC_MSG_CHECKING(for inttypes.h) |
1244 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
11e66330 | 1245 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
d515e136 | 1246 | [[#define __STDC_FORMAT_MACROS |
1247 | #include <sys/types.h> | |
11e66330 | 1248 | #include <inttypes.h>]], |
d515e136 | 1249 | [[intmax_t i = -1; |
1250 | #ifndef PRId64 | |
1251 | choke me | |
1252 | #endif]])], | |
fd80090d | 1253 | [gcc_cv_header_inttypes_h=yes], |
11e66330 | 1254 | [gcc_cv_header_inttypes_h=no])]) |
a3477a0e | 1255 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
fd80090d | 1256 | if test $gcc_cv_header_inttypes_h = yes; then |
42f1312d | 1257 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1258 | [Define if you have a working <inttypes.h> header file.]) | |
fd80090d | 1259 | fi |
805483cf | 1260 | |
3dcfd230 | 1261 | # Look for the ZSTD package. |
1262 | ZSTD_INCLUDE= | |
1263 | ZSTD_LIB= | |
1264 | AC_SUBST(ZSTD_INCLUDE) | |
1265 | AC_SUBST(ZSTD_LIB) | |
1266 | ZSTD_CPPFLAGS= | |
1267 | ZSTD_LDFLAGS= | |
1268 | AC_ARG_WITH(zstd, | |
1269 | [AS_HELP_STRING([--with-zstd=PATH], | |
1270 | [specify prefix directory for installed zstd library. | |
1271 | Equivalent to --with-zstd-include=PATH/include | |
1272 | plus --with-zstd-lib=PATH/lib])]) | |
1273 | AC_ARG_WITH(zstd-include, | |
1274 | [AS_HELP_STRING([--with-zstd-include=PATH], | |
1275 | [specify directory for installed zstd include files])]) | |
1276 | AC_ARG_WITH(zstd-lib, | |
1277 | [AS_HELP_STRING([--with-zstd-lib=PATH], | |
1278 | [specify directory for the installed zstd library])]) | |
1279 | case "x$with_zstd" in | |
1280 | x) ;; | |
1281 | xno) | |
1282 | ZSTD_INCLUDE=no | |
1283 | ZSTD_LIB=no | |
1284 | ;; | |
1285 | *) ZSTD_INCLUDE=$with_zstd/include | |
1286 | ZSTD_LIB=$with_zstd/lib | |
1287 | ;; | |
1288 | esac | |
1289 | if test "x$with_zstd_include" != x; then | |
1290 | ZSTD_INCLUDE=$with_zstd_include | |
1291 | fi | |
1292 | if test "x$with_zstd_lib" != x; then | |
1293 | ZSTD_LIB=$with_zstd_lib | |
1294 | fi | |
1295 | if test "x$ZSTD_INCLUDE" != x \ | |
1296 | && test "x$ZSTD_INCLUDE" != xno; then | |
1297 | ZSTD_CPPFLAGS=-I$ZSTD_INCLUDE | |
1298 | fi | |
1299 | if test "x$ZSTD_LIB" != x \ | |
1300 | && test "x$ZSTD_LIB" != xno; then | |
1301 | ZSTD_LDFLAGS=-L$ZSTD_LIB | |
1302 | fi | |
1303 | ||
1304 | CXXFLAGS="$CXXFLAGS $ZSTD_CPPFLAGS" | |
1305 | LDFLAGS="$LDFLAGS $ZSTD_LDFLAGS" | |
1306 | ||
1307 | AC_MSG_CHECKING(for zstd.h) | |
1308 | AC_CACHE_VAL(gcc_cv_header_zstd_h, | |
1309 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
1310 | [[#include <zstd.h>]])], | |
1311 | [gcc_cv_header_zstd_h=yes], | |
1312 | [gcc_cv_header_zstd_h=no])]) | |
1313 | AC_MSG_RESULT($gcc_cv_header_zstd_h) | |
1314 | if test $gcc_cv_header_zstd_h = yes; then | |
1315 | AC_DEFINE(HAVE_ZSTD_H, 1, | |
1316 | [Define if you have a working <zstd.h> header file.]) | |
1317 | fi | |
1318 | ||
1319 | # LTO can use zstd compression algorithm | |
1320 | save_LIBS="$LIBS" | |
1321 | LIBS= | |
1322 | AC_SEARCH_LIBS(ZSTD_compress, zstd) | |
1323 | ZSTD_LIB="$LIBS" | |
1324 | LIBS="$save_LIBS" | |
1325 | AC_SUBST(ZSTD_LIB) | |
1326 | ||
aab9bda6 | 1327 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1328 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
488c4206 | 1329 | |
077a3c99 | 1330 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1331 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1332 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1333 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1334 | putchar_unlocked putc_unlocked) | |
93da3efe | 1335 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \ |
6cc8a944 | 1336 | popen sysconf strsignal getrusage nl_langinfo \ |
967958e4 | 1337 | gettimeofday mbstowcs wcswidth mmap setlocale \ |
c5db973f | 1338 | gcc_UNLOCKED_FUNCS madvise) |
4211624c | 1339 | |
b503c1a2 | 1340 | if test x$ac_cv_func_mbstowcs = xyes; then |
1341 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
11e66330 | 1342 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
b503c1a2 | 1343 | int main() |
1344 | { | |
1345 | mbstowcs(0, "", 0); | |
1346 | return 0; | |
11e66330 | 1347 | }]])], |
1348 | [gcc_cv_func_mbstowcs_works=yes], | |
1349 | [gcc_cv_func_mbstowcs_works=no], | |
1350 | [gcc_cv_func_mbstowcs_works=yes])]) | |
b503c1a2 | 1351 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1352 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1353 | [Define this macro if mbstowcs does not crash when its | |
1354 | first argument is NULL.]) | |
1355 | fi | |
1356 | fi | |
1357 | ||
478a5aa8 | 1358 | AC_CHECK_TYPE(ssize_t, int) |
1d5a5c71 | 1359 | AC_CHECK_TYPE(caddr_t, char *) |
33a62e3f | 1360 | |
749dea2a | 1361 | GCC_AC_FUNC_MMAP_BLACKLIST |
f1959ea2 | 1362 | |
1363 | case "${host}" in | |
8f966bdb | 1364 | *-*-*vms*) |
0d4639d6 | 1365 | # Under VMS, vfork works very differently than on Unix. The standard test |
8f966bdb | 1366 | # won't work, and it isn't easily adaptable. It makes more sense to |
1367 | # just force it. | |
1368 | ac_cv_func_vfork_works=yes | |
1369 | ;; | |
f1959ea2 | 1370 | esac |
11e66330 | 1371 | AC_FUNC_FORK |
0a0a425e | 1372 | |
2b15d2ba | 1373 | AM_ICONV |
6678cb4e | 1374 | |
c6976b58 | 1375 | # Until we have in-tree GNU iconv: |
1376 | LIBICONV_DEP= | |
29890f2e | 1377 | if test -f "$LTLIBICONV"; then |
1378 | LIBICONV_DEP=$LTLIBICONV | |
1379 | fi | |
c6976b58 | 1380 | AC_SUBST(LIBICONV_DEP) |
1381 | ||
1382 | AM_LC_MESSAGES | |
7093ff41 | 1383 | |
ac31415f | 1384 | AM_LANGINFO_CODESET |
1385 | ||
3c014a93 | 1386 | # We will need to find libiberty.h and ansidecl.h |
1387 | saved_CFLAGS="$CFLAGS" | |
f67e1abf | 1388 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
f4245e06 | 1389 | saved_CXXFLAGS="$CXXFLAGS" |
f67e1abf | 1390 | CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC" |
c20b03af | 1391 | |
1392 | # gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the | |
1393 | # normal autoconf function for these. But force definition of | |
1394 | # HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre | |
1395 | # basename handling in libiberty.h. | |
1396 | AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[ | |
1397 | #undef HAVE_DECL_BASENAME | |
1398 | #define HAVE_DECL_BASENAME 1 | |
1399 | #include "ansidecl.h" | |
1400 | #include "system.h"]) | |
1401 | ||
93da3efe | 1402 | gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \ |
c20b03af | 1403 | madvise stpcpy strnlen strsignal strverscmp \ |
5b6507b0 | 1404 | strtol strtoul strtoll strtoull setenv unsetenv \ |
9b1f316f | 1405 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ |
c20b03af | 1406 | free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[ |
673b6e5a | 1407 | #include "ansidecl.h" |
3c014a93 | 1408 | #include "system.h"]) |
7014838c | 1409 | |
07c927cb | 1410 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
673b6e5a | 1411 | #include "ansidecl.h" |
3c014a93 | 1412 | #include "system.h" |
436f5383 | 1413 | #ifdef HAVE_SYS_RESOURCE_H |
1414 | #include <sys/resource.h> | |
1415 | #endif | |
1416 | ]) | |
1417 | ||
11e66330 | 1418 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1b9d008 | 1419 | #include "ansidecl.h" |
1420 | #include "system.h" | |
1421 | #ifdef HAVE_SYS_RESOURCE_H | |
1422 | #include <sys/resource.h> | |
1423 | #endif | |
11e66330 | 1424 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
dea92435 | 1425 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
c1b9d008 | 1426 | |
d71e0d30 | 1427 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1428 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1429 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1430 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
31a83412 | 1431 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1432 | #include "ansidecl.h" | |
1433 | #include "system.h" | |
1434 | #ifdef HAVE_LDFCN_H | |
d71e0d30 | 1435 | #undef FREAD |
1436 | #undef FWRITE | |
31a83412 | 1437 | #include <ldfcn.h> |
1438 | #endif | |
1439 | ]) | |
1440 | ||
c770a4cb | 1441 | gcc_AC_CHECK_DECLS(times, , ,[ |
1442 | #include "ansidecl.h" | |
1443 | #include "system.h" | |
1444 | #ifdef HAVE_SYS_TIMES_H | |
1445 | #include <sys/times.h> | |
1446 | #endif | |
1447 | ]) | |
1448 | ||
168c58e0 | 1449 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1450 | #include "ansidecl.h" | |
1451 | #include "system.h" | |
1452 | #include <signal.h> | |
1453 | ]) | |
1454 | ||
c770a4cb | 1455 | # More time-related stuff. |
1456 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
11e66330 | 1457 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1458 | #include "ansidecl.h" |
1459 | #include "system.h" | |
1460 | #ifdef HAVE_SYS_TIMES_H | |
1461 | #include <sys/times.h> | |
1462 | #endif | |
11e66330 | 1463 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c770a4cb | 1464 | if test $ac_cv_struct_tms = yes; then |
1465 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1466 | [Define if <sys/times.h> defines struct tms.]) | |
1467 | fi | |
1468 | ||
1469 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1470 | # revisit after autoconf 2.50. | |
1471 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
11e66330 | 1472 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1473 | #include "ansidecl.h" |
1474 | #include "system.h" | |
11e66330 | 1475 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c770a4cb | 1476 | if test $gcc_cv_type_clock_t = yes; then |
1477 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1478 | [Define if <time.h> defines clock_t.]) | |
1479 | fi | |
1480 | ||
3d2ab4bc | 1481 | # Check if F_SETLKW is supported by fcntl. |
1482 | AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [ | |
1483 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1484 | #include <fcntl.h>]], [[ | |
1485 | struct flock fl; | |
1486 | fl.l_whence = 0; | |
1487 | fl.l_start = 0; | |
1488 | fl.l_len = 0; | |
1489 | fl.l_pid = 0; | |
1490 | return fcntl (1, F_SETLKW, &fl);]])], | |
1491 | [ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])]) | |
1492 | if test $ac_cv_f_setlkw = yes; then | |
1493 | AC_DEFINE(HOST_HAS_F_SETLKW, 1, | |
1494 | [Define if F_SETLKW supported by fcntl.]) | |
1495 | fi | |
1496 | ||
f4245e06 | 1497 | # Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
3c014a93 | 1498 | CFLAGS="$saved_CFLAGS" |
f4245e06 | 1499 | CXXFLAGS="$saved_CXXFLAGS" |
3c014a93 | 1500 | |
a729d1c3 | 1501 | # mkdir takes a single argument on some systems. |
f9708620 | 1502 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
a729d1c3 | 1503 | |
01dc27ef | 1504 | # File extensions |
1505 | manext='.1' | |
1506 | objext='.o' | |
01dc27ef | 1507 | AC_SUBST(manext) |
1508 | AC_SUBST(objext) | |
01dc27ef | 1509 | |
805e22b2 | 1510 | # With Setjmp/Longjmp based exception handling. |
1511 | AC_ARG_ENABLE(sjlj-exceptions, | |
bc6c87c1 | 1512 | [AS_HELP_STRING([--enable-sjlj-exceptions], |
1513 | [arrange to use setjmp/longjmp exception handling])], | |
d4f869a6 | 1514 | [case $target in |
1515 | *-*-hpux10*) | |
1516 | if test $enableval != yes; then | |
1517 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1518 | enableval=yes | |
1519 | fi | |
1520 | ;; | |
1521 | esac | |
1522 | force_sjlj_exceptions=yes], | |
1523 | [case $target in | |
1524 | *-*-hpux10*) | |
1525 | force_sjlj_exceptions=yes | |
1526 | enableval=yes | |
1527 | ;; | |
369d6f24 | 1528 | lm32*-*-*) |
1529 | force_sjlj_exceptions=yes | |
1530 | enableval=yes | |
1531 | ;; | |
d4f869a6 | 1532 | *) |
1533 | force_sjlj_exceptions=no | |
1534 | ;; | |
1535 | esac]) | |
1536 | if test $force_sjlj_exceptions = yes; then | |
1537 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1538 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1539 | [Define 0/1 to force the choice for exception handling model.]) | |
1540 | fi | |
805e22b2 | 1541 | |
7349ace9 | 1542 | # -------------------------------------------------------- |
1543 | # Build, host, and target specific configuration fragments | |
1544 | # -------------------------------------------------------- | |
1545 | ||
eab1a815 | 1546 | # Collect build-machine-specific information. |
056ccd8f | 1547 | . ${srcdir}/config.build || exit 1 |
eab1a815 | 1548 | |
973f8bf3 | 1549 | # Collect host-machine-specific information. |
056ccd8f | 1550 | . ${srcdir}/config.host || exit 1 |
973f8bf3 | 1551 | |
eb1bd38b | 1552 | target_gtfiles= |
973f8bf3 | 1553 | |
1554 | # Collect target-machine-specific information. | |
056ccd8f | 1555 | . ${srcdir}/config.gcc || exit 1 |
01dc27ef | 1556 | |
1557 | extra_objs="${host_extra_objs} ${extra_objs}" | |
69eb04f7 | 1558 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
01dc27ef | 1559 | |
1560 | # Default the target-machine variables that were not explicitly set. | |
bf3637a9 | 1561 | if test x"$tm_file" = x |
01dc27ef | 1562 | then tm_file=$cpu_type/$cpu_type.h; fi |
1563 | ||
2a8be21e | 1564 | if test x"$extra_headers" = x |
01dc27ef | 1565 | then extra_headers=; fi |
1566 | ||
bf3637a9 | 1567 | if test x$md_file = x |
0579e60e | 1568 | then md_file=$cpu_type/$cpu_type.md; fi |
01dc27ef | 1569 | |
bf3637a9 | 1570 | if test x$out_file = x |
01dc27ef | 1571 | then out_file=$cpu_type/$cpu_type.c; fi |
1572 | ||
bf3637a9 | 1573 | if test x"$tmake_file" = x |
01dc27ef | 1574 | then tmake_file=$cpu_type/t-$cpu_type |
1575 | fi | |
1576 | ||
35f51475 | 1577 | # Support --enable-initfini-array. |
1578 | if test x$enable_initfini_array != xno; then | |
1579 | tm_file="${tm_file} initfini-array.h" | |
1580 | fi | |
1581 | ||
27b15aee | 1582 | if test x"$dwarf2" = xyes |
b65d2e3c | 1583 | then tm_file="$tm_file tm-dwarf2.h" |
27b15aee | 1584 | fi |
1585 | ||
01dc27ef | 1586 | # Say what files are being used for the output code and MD file. |
83b8e55b | 1587 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
01dc27ef | 1588 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1589 | ||
83b8e55b | 1590 | # If any of the xm_file variables contain nonexistent files, warn |
e1688c3e | 1591 | # about them and drop them. |
1592 | ||
83b8e55b | 1593 | bx= |
1594 | for x in $build_xm_file; do | |
1595 | if test -f $srcdir/config/$x | |
1596 | then bx="$bx $x" | |
83b8e55b | 1597 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1598 | fi | |
1599 | done | |
1600 | build_xm_file="$bx" | |
1601 | ||
1602 | hx= | |
1603 | for x in $host_xm_file; do | |
1604 | if test -f $srcdir/config/$x | |
1605 | then hx="$hx $x" | |
83b8e55b | 1606 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1607 | fi | |
1608 | done | |
1609 | host_xm_file="$hx" | |
1610 | ||
1611 | tx= | |
1612 | for x in $xm_file; do | |
1613 | if test -f $srcdir/config/$x | |
1614 | then tx="$tx $x" | |
83b8e55b | 1615 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1616 | fi | |
1617 | done | |
1618 | xm_file="$tx" | |
1619 | ||
01dc27ef | 1620 | count=a |
1621 | for f in $tm_file; do | |
1622 | count=${count}x | |
1623 | done | |
bf3637a9 | 1624 | if test $count = ax; then |
01dc27ef | 1625 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1626 | else | |
1627 | echo "Using the following target machine macro files:" | |
1628 | for f in $tm_file; do | |
1629 | echo " $srcdir/config/$f" | |
1630 | done | |
1631 | fi | |
1632 | ||
3f28a032 | 1633 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1634 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1c8ad86a | 1635 | [Define to 1 if the 'long long' type is wider than 'long' but still |
3f28a032 | 1636 | efficiently supported by the host hardware.]) |
1637 | fi | |
1638 | ||
8ffcff2e | 1639 | gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi` |
1640 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.]) | |
1641 | ||
1642 | gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi` | |
1643 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.]) | |
1644 | ||
01dc27ef | 1645 | count=a |
1646 | for f in $host_xm_file; do | |
1647 | count=${count}x | |
1648 | done | |
83b8e55b | 1649 | if test $count = a; then |
1650 | : | |
1651 | elif test $count = ax; then | |
01dc27ef | 1652 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1653 | else | |
1654 | echo "Using the following host machine macro files:" | |
1655 | for f in $host_xm_file; do | |
1656 | echo " $srcdir/config/$f" | |
1657 | done | |
1658 | fi | |
b197fbcf | 1659 | echo "Using ${out_host_hook_obj} for host machine hooks." |
01dc27ef | 1660 | |
bf3637a9 | 1661 | if test "$host_xm_file" != "$build_xm_file"; then |
01dc27ef | 1662 | count=a |
1663 | for f in $build_xm_file; do | |
1664 | count=${count}x | |
1665 | done | |
83b8e55b | 1666 | if test $count = a; then |
1667 | : | |
1668 | elif test $count = ax; then | |
01dc27ef | 1669 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1670 | else | |
1671 | echo "Using the following build machine macro files:" | |
1672 | for f in $build_xm_file; do | |
1673 | echo " $srcdir/config/$f" | |
1674 | done | |
1675 | fi | |
1676 | fi | |
1677 | ||
638454a1 | 1678 | if test -n "$configured_native_system_header_dir"; then |
1679 | native_system_header_dir=$configured_native_system_header_dir | |
1680 | fi | |
1681 | NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir" | |
1682 | AC_SUBST(NATIVE_SYSTEM_HEADER_DIR) | |
1683 | ||
168c58e0 | 1684 | case ${host} in |
84eba009 | 1685 | powerpc*-*-darwin*) |
168c58e0 | 1686 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1687 | gcc_cv_mcontext_underscores, | |
f00f02a3 | 1688 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
267a6571 | 1689 | #include <sys/cdefs.h> |
679f19b4 | 1690 | #include <sys/signal.h> |
168c58e0 | 1691 | #include <ucontext.h> |
1692 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
f00f02a3 | 1693 | ])], |
168c58e0 | 1694 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) |
1695 | if test $gcc_cv_mcontext_underscores = yes; then | |
1696 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1697 | [mcontext_t fields start with __]) | |
1698 | fi | |
1699 | ;; | |
1700 | esac | |
1701 | ||
d976f534 | 1702 | # --------- |
1703 | # Threading | |
1704 | # --------- | |
1705 | ||
267d993c | 1706 | # Check if a valid thread package |
334c8279 | 1707 | case ${enable_threads} in |
267d993c | 1708 | "" | no) |
1709 | # No threads | |
1710 | target_thread_file='single' | |
1711 | ;; | |
1712 | yes) | |
1713 | # default | |
1714 | target_thread_file='single' | |
1715 | ;; | |
fe5ef4a0 | 1716 | aix | dce | lynx | mipssde | posix | rtems | \ |
3f25492e | 1717 | single | tpf | vxworks | win32) |
334c8279 | 1718 | target_thread_file=${enable_threads} |
267d993c | 1719 | ;; |
1720 | *) | |
334c8279 | 1721 | echo "${enable_threads} is an unknown thread package" 1>&2 |
267d993c | 1722 | exit 1 |
1723 | ;; | |
1724 | esac | |
1725 | ||
1726 | if test x${thread_file} = x; then | |
1727 | # No thread file set by target-specific clauses in config.gcc, | |
1728 | # so use file chosen by default logic above | |
1729 | thread_file=${target_thread_file} | |
01dc27ef | 1730 | fi |
01dc27ef | 1731 | |
d976f534 | 1732 | # -------- |
1733 | # UNSORTED | |
1734 | # -------- | |
1735 | ||
d9ab9cb9 | 1736 | use_cxa_atexit=no |
bc5ae993 | 1737 | if test x$enable___cxa_atexit = xyes || \ |
1738 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
d9ab9cb9 | 1739 | if test x$host = x$target; then |
d91ef9b0 | 1740 | case $host in |
1741 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1742 | # keyed to flag_use_cxa_atexit | |
1743 | *-*-mingw32*) | |
1744 | use_cxa_atexit=yes | |
1745 | ;; | |
a8af2dd5 | 1746 | powerpc-ibm-aix*) |
1747 | use_cxa_atexit=yes | |
1748 | ;; | |
d91ef9b0 | 1749 | *) |
1750 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1751 | [echo "__cxa_atexit can't be enabled on this target"]) | |
55a5bb1e | 1752 | ;; |
d91ef9b0 | 1753 | esac |
d9ab9cb9 | 1754 | else |
1755 | # We can't check for __cxa_atexit when building a cross, so assume | |
1756 | # it is available | |
1757 | use_cxa_atexit=yes | |
1758 | fi | |
1759 | if test x$use_cxa_atexit = xyes; then | |
3bf418bd | 1760 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
d9ab9cb9 | 1761 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1762 | register C++ destructors for local statics and global objects. | |
1763 | This is essential for fully standards-compliant handling of | |
1764 | destructors, but requires __cxa_atexit in libc.]) | |
1765 | fi | |
bc5ae993 | 1766 | fi |
1767 | ||
6f432b58 | 1768 | # Look for a file containing extra machine modes. |
b5ccaa7b | 1769 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1770 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
6f432b58 | 1771 | AC_SUBST(extra_modes_file) |
4dcab8b7 | 1772 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
6f432b58 | 1773 | [Define to the name of a file containing a list of extra machine modes |
1774 | for this architecture.]) | |
6f432b58 | 1775 | fi |
1776 | ||
ff05e09e | 1777 | # Convert extra_options into a form suitable for Makefile use. |
1778 | extra_opt_files= | |
755fa783 | 1779 | all_opt_files= |
ff05e09e | 1780 | for f in $extra_options; do |
1781 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
755fa783 | 1782 | all_opt_files="$all_opt_files $srcdir/config/$f" |
ff05e09e | 1783 | done |
1784 | AC_SUBST(extra_opt_files) | |
1785 | ||
764fc592 | 1786 | # auto-host.h is the file containing items generated by autoconf and is |
0dbd1c74 | 1787 | # the first file included by config.h. |
805e22b2 | 1788 | # If host=build, it is correct to have bconfig include auto-host.h |
58b16c1a | 1789 | # as well. If host!=build, we are in error and need to do more |
1790 | # work to find out the build config parameters. | |
bf3637a9 | 1791 | if test x$host = x$build |
58b16c1a | 1792 | then |
d826737c | 1793 | build_auto=auto-host.h |
764fc592 | 1794 | else |
1795 | # We create a subdir, then run autoconf in the subdir. | |
1796 | # To prevent recursion we set host and build for the new | |
1797 | # invocation of configure to the build for this invocation | |
1798 | # of configure. | |
1799 | tempdir=build.$$ | |
1800 | rm -rf $tempdir | |
1801 | mkdir $tempdir | |
1802 | cd $tempdir | |
1803 | case ${srcdir} in | |
e868f582 | 1804 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
764fc592 | 1805 | *) realsrcdir=../${srcdir};; |
1806 | esac | |
18350b2e | 1807 | # Clearing GMPINC is necessary to prevent host headers being |
1808 | # used by the build compiler. Defining GENERATOR_FILE stops | |
1809 | # system.h from including gmp.h. | |
fc5104b7 | 1810 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ |
18350b2e | 1811 | CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \ |
1812 | LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
1813 | GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \ | |
fc5104b7 | 1814 | ${realsrcdir}/configure \ |
1f3fcf32 | 1815 | --enable-languages=${enable_languages-all} \ |
ab3470ec | 1816 | --target=$target_alias --host=$build_alias --build=$build_alias |
764fc592 | 1817 | |
1818 | # We just finished tests for the build machine, so rename | |
1819 | # the file auto-build.h in the gcc directory. | |
1820 | mv auto-host.h ../auto-build.h | |
1821 | cd .. | |
1822 | rm -rf $tempdir | |
d826737c | 1823 | build_auto=auto-build.h |
58b16c1a | 1824 | fi |
2b59cb05 | 1825 | AC_SUBST(build_subdir) |
58b16c1a | 1826 | |
d826737c | 1827 | tm_file="${tm_file} defaults.h" |
805e22b2 | 1828 | tm_p_file="${tm_p_file} tm-preds.h" |
03385ed3 | 1829 | tm_d_file="${tm_d_file} defaults.h" |
805e22b2 | 1830 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" |
1831 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
4b0e3ddb | 1832 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
18320123 | 1833 | # put this back in temporarily. |
fcd42b1e | 1834 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
4a7d7a8b | 1835 | |
7349ace9 | 1836 | # -------- |
1837 | # UNSORTED | |
1838 | # -------- | |
1839 | ||
14ac9144 | 1840 | changequote(,)dnl |
9371935c | 1841 | # Compile in configure arguments. |
6e11eb2c | 1842 | if test -f configargs.h ; then |
9371935c | 1843 | # Being re-configured. |
8bffa377 | 1844 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
f48b6632 | 1845 | gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'` |
1846 | if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then | |
1847 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1848 | fi | |
9371935c | 1849 | else |
1850 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1851 | fi | |
5df533c9 | 1852 | |
1853 | # Double all backslashes and backslash all quotes to turn | |
1854 | # gcc_config_arguments into a C string. | |
1855 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1856 | $gcc_config_arguments | |
1857 | EOF | |
1858 | gcc_config_arguments_str=`cat conftest.out` | |
1859 | rm -f conftest.out | |
1860 | ||
9371935c | 1861 | cat > configargs.h <<EOF |
1862 | /* Generated automatically. */ | |
5df533c9 | 1863 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
6d72c630 | 1864 | static const char thread_model[] = "$thread_file"; |
7dd97ab6 | 1865 | |
1866 | static const struct { | |
1867 | const char *name, *value; | |
1868 | } configure_default_options[] = $configure_default_options; | |
9371935c | 1869 | EOF |
bf3637a9 | 1870 | changequote([,])dnl |
01dc27ef | 1871 | |
e8ad34e4 | 1872 | changequote(,)dnl |
6ac2286b | 1873 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1874 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1875 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
e8ad34e4 | 1876 | if test -f $srcdir/REVISION ; then |
6ac2286b | 1877 | gcc_REVISION=`cat $srcdir/REVISION` |
e8ad34e4 | 1878 | else |
1879 | gcc_REVISION="" | |
1880 | fi | |
1881 | cat > plugin-version.h <<EOF | |
1882 | #include "configargs.h" | |
1883 | ||
7fed55f3 | 1884 | #define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'` |
1885 | #define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'` | |
1886 | #define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'` | |
1887 | #define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR) | |
1888 | ||
e8ad34e4 | 1889 | static char basever[] = "$gcc_BASEVER"; |
1890 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1891 | static char devphase[] = "$gcc_DEVPHASE"; | |
1892 | static char revision[] = "$gcc_REVISION"; | |
1893 | ||
1894 | /* FIXME plugins: We should make the version information more precise. | |
1895 | One way to do is to add a checksum. */ | |
1896 | ||
1897 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1898 | devphase, revision, | |
1899 | configuration_arguments}; | |
1900 | EOF | |
1901 | changequote([,])dnl | |
1902 | ||
0812bb06 | 1903 | # Determine what GCC version number to use in filesystem paths. |
1904 | GCC_BASE_VER | |
1905 | ||
be2828ce | 1906 | # Internationalization |
c6976b58 | 1907 | ZW_GNU_GETTEXT_SISTER_DIR |
c5ab9ed2 | 1908 | |
c6976b58 | 1909 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1910 | # -liconv on the link line twice. | |
1911 | case "$LIBINTL" in *$LIBICONV*) | |
1912 | LIBICONV= ;; | |
1913 | esac | |
be2828ce | 1914 | |
197f58fa | 1915 | AC_ARG_ENABLE(secureplt, |
bc6c87c1 | 1916 | [AS_HELP_STRING([--enable-secureplt], |
1917 | [enable -msecure-plt by default for PowerPC])], | |
197f58fa | 1918 | [], []) |
1919 | ||
15296a7b | 1920 | AC_ARG_ENABLE(mingw-wildcard, |
1921 | [AS_HELP_STRING([--enable-mingw-wildcard], | |
1922 | [Set whether to expand wildcard on command-line. | |
1923 | Default to platform configuration])], | |
1924 | [],[enable_mingw_wildcard=platform]) | |
1925 | AS_IF([test x"$enable_mingw_wildcard" != xplatform ], | |
1926 | [AC_DEFINE_UNQUOTED(MINGW_DOWILDCARD, | |
1927 | $(test x"$enable_mingw_wildcard" = xno; echo $?), | |
1928 | [Value to set mingw's _dowildcard to.])]) | |
1929 | ||
ee018eb1 | 1930 | AC_ARG_ENABLE(large-address-aware, |
1931 | [AS_HELP_STRING([--enable-large-address-aware], | |
1932 | [Link mingw executables with --large-address-aware])]) | |
1933 | AS_IF([test x"$enable_large_address_aware" = xyes], | |
1934 | [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1, | |
1935 | [Define if we should link mingw executables with --large-address-aware])]) | |
1936 | ||
a2beb429 | 1937 | AC_ARG_ENABLE(leading-mingw64-underscores, |
1938 | AS_HELP_STRING([--enable-leading-mingw64-underscores], | |
bc6c87c1 | 1939 | [enable leading underscores on 64 bit mingw targets]), |
a2beb429 | 1940 | [],[]) |
1941 | AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ], | |
1942 | [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1, | |
1943 | [Define if we should use leading underscore on 64 bit mingw targets])]) | |
1944 | ||
144c3e90 | 1945 | AC_ARG_ENABLE(cld, |
bc6c87c1 | 1946 | [AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [], |
144c3e90 | 1947 | [enable_cld=no]) |
1948 | ||
fc00a76a | 1949 | AC_ARG_ENABLE(frame-pointer, |
bc6c87c1 | 1950 | [AS_HELP_STRING([--enable-frame-pointer], |
fe9e2b07 | 1951 | [enable -fno-omit-frame-pointer by default for x86])], [], |
fc00a76a | 1952 | [ |
1953 | case $target_os in | |
0df8904a | 1954 | linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*) |
679a4995 | 1955 | # Enable -fomit-frame-pointer by default for these systems with DWARF2. |
fc00a76a | 1956 | enable_frame_pointer=no |
1957 | ;; | |
1958 | *) | |
1959 | enable_frame_pointer=yes | |
1960 | ;; | |
1961 | esac | |
1962 | ]) | |
1963 | ||
fe9e2b07 | 1964 | case $target in |
1965 | i[[34567]]86-*-* | x86_64-*-*) | |
1966 | if test "x$enable_cld" = xyes; then | |
1967 | tm_defines="${tm_defines} USE_IX86_CLD=1" | |
1968 | fi | |
1969 | if test "x$enable_frame_pointer" = xyes; then | |
1970 | tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1" | |
1971 | fi | |
1972 | ;; | |
1973 | esac | |
1974 | ||
778a2833 | 1975 | # Windows32 Registry support for specifying GCC installation paths. |
1976 | AC_ARG_ENABLE(win32-registry, | |
bc6c87c1 | 1977 | [AS_HELP_STRING([--disable-win32-registry], |
1978 | [disable lookup of installation paths in the | |
1979 | Registry on Windows hosts]) | |
1980 | AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)]) | |
1981 | AS_HELP_STRING([--enable-win32-registry=KEY], | |
1982 | [use KEY instead of GCC version as the last portion | |
1983 | of the registry key])],,) | |
1af67e62 | 1984 | |
45449d9f | 1985 | case $host_os in |
297677bc | 1986 | win32 | pe | cygwin* | mingw32*) |
1af67e62 | 1987 | if test "x$enable_win32_registry" != xno; then |
1988 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1989 | fi | |
778a2833 | 1990 | |
1af67e62 | 1991 | if test "x$enable_win32_registry" != xno; then |
1992 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1993 | [Define to 1 if installation paths should be looked up in the Windows | |
1994 | Registry. Ignored on non-Windows hosts.]) | |
1995 | ||
1996 | if test "x$enable_win32_registry" != xyes \ | |
1997 | && test "x$enable_win32_registry" != x; then | |
1998 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1999 | [Define to be the last component of the Windows registry key under which | |
2000 | to look for installation paths. The full key used will be | |
2001 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
2002 | The default is the GCC version number.]) | |
2003 | fi | |
2004 | fi | |
778a2833 | 2005 | ;; |
2006 | esac | |
2007 | ||
cab2aaca | 2008 | # Get an absolute path to the GCC top-level source directory |
3354d061 | 2009 | holddir=`${PWDCMD-pwd}` |
cab2aaca | 2010 | cd $srcdir |
3354d061 | 2011 | topdir=`${PWDCMD-pwd}` |
cab2aaca | 2012 | cd $holddir |
2013 | ||
0045e563 | 2014 | # Conditionalize the makefile for this host machine. |
a455468e | 2015 | xmake_file= |
2e222ce5 | 2016 | for f in ${host_xmake_file} |
5a92ba2a | 2017 | do |
bf3637a9 | 2018 | if test -f ${srcdir}/config/$f |
5a92ba2a | 2019 | then |
a455468e | 2020 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
5a92ba2a | 2021 | fi |
2022 | done | |
01dc27ef | 2023 | |
0045e563 | 2024 | # Conditionalize the makefile for this target machine. |
a455468e | 2025 | tmake_file_= |
2e222ce5 | 2026 | for f in ${tmake_file} |
5a92ba2a | 2027 | do |
bf3637a9 | 2028 | if test -f ${srcdir}/config/$f |
5a92ba2a | 2029 | then |
a455468e | 2030 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
5a92ba2a | 2031 | fi |
2032 | done | |
a455468e | 2033 | tmake_file="${tmake_file_}" |
4fc83d8e | 2034 | |
0045e563 | 2035 | out_object_file=`basename $out_file .c`.o |
3e87b980 | 2036 | common_out_object_file=`basename $common_out_file .c`.o |
4fc83d8e | 2037 | |
ff05e09e | 2038 | tm_file_list="options.h" |
a317e77e | 2039 | tm_include_list="options.h insn-constants.h" |
0045e563 | 2040 | for f in $tm_file; do |
de5102fe | 2041 | case $f in |
504cf784 | 2042 | ./* ) |
2043 | f=`echo $f | sed 's/^..//'` | |
2044 | tm_file_list="${tm_file_list} $f" | |
2045 | tm_include_list="${tm_include_list} $f" | |
2046 | ;; | |
673b6e5a | 2047 | defaults.h ) |
4dcab8b7 | 2048 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
2049 | tm_include_list="${tm_include_list} $f" | |
2050 | ;; | |
2051 | * ) | |
2052 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
2053 | tm_include_list="${tm_include_list} config/$f" | |
2054 | ;; | |
de5102fe | 2055 | esac |
0045e563 | 2056 | done |
01dc27ef | 2057 | |
83b8e55b | 2058 | tm_p_file_list= |
4dcab8b7 | 2059 | tm_p_include_list= |
83b8e55b | 2060 | for f in $tm_p_file; do |
805e22b2 | 2061 | case $f in |
2062 | tm-preds.h ) | |
4dcab8b7 | 2063 | tm_p_file_list="${tm_p_file_list} $f" |
2064 | tm_p_include_list="${tm_p_include_list} $f" | |
2065 | ;; | |
2066 | * ) | |
2067 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
2068 | tm_p_include_list="${tm_p_include_list} config/$f" | |
2069 | esac | |
2070 | done | |
2071 | ||
03385ed3 | 2072 | tm_d_file_list= |
2073 | tm_d_include_list="options.h insn-constants.h" | |
2074 | for f in $tm_d_file; do | |
2075 | case $f in | |
2076 | defaults.h ) | |
2077 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f" | |
2078 | tm_d_include_list="${tm_d_include_list} $f" | |
2079 | ;; | |
2080 | * ) | |
2081 | tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f" | |
2082 | tm_d_include_list="${tm_d_include_list} config/$f" | |
2083 | ;; | |
2084 | esac | |
2085 | done | |
2086 | ||
4dcab8b7 | 2087 | xm_file_list= |
2088 | xm_include_list= | |
2089 | for f in $xm_file; do | |
2090 | case $f in | |
2091 | ansidecl.h ) | |
2092 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
2093 | xm_include_list="${xm_include_list} $f" | |
2094 | ;; | |
2095 | auto-host.h ) | |
2096 | xm_file_list="${xm_file_list} $f" | |
2097 | xm_include_list="${xm_include_list} $f" | |
2098 | ;; | |
2099 | * ) | |
2100 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
2101 | xm_include_list="${xm_include_list} config/$f" | |
2102 | ;; | |
805e22b2 | 2103 | esac |
83b8e55b | 2104 | done |
2105 | ||
0045e563 | 2106 | host_xm_file_list= |
4dcab8b7 | 2107 | host_xm_include_list= |
0045e563 | 2108 | for f in $host_xm_file; do |
de5102fe | 2109 | case $f in |
673b6e5a | 2110 | ansidecl.h ) |
4dcab8b7 | 2111 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
2112 | host_xm_include_list="${host_xm_include_list} $f" | |
2113 | ;; | |
1f3233d1 | 2114 | auto-host.h ) |
4dcab8b7 | 2115 | host_xm_file_list="${host_xm_file_list} $f" |
2116 | host_xm_include_list="${host_xm_include_list} $f" | |
2117 | ;; | |
2118 | * ) | |
2119 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
2120 | host_xm_include_list="${host_xm_include_list} config/$f" | |
2121 | ;; | |
de5102fe | 2122 | esac |
0045e563 | 2123 | done |
2124 | ||
2125 | build_xm_file_list= | |
2126 | for f in $build_xm_file; do | |
de5102fe | 2127 | case $f in |
673b6e5a | 2128 | ansidecl.h ) |
4dcab8b7 | 2129 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
2130 | build_xm_include_list="${build_xm_include_list} $f" | |
2131 | ;; | |
1f3233d1 | 2132 | auto-build.h | auto-host.h ) |
4dcab8b7 | 2133 | build_xm_file_list="${build_xm_file_list} $f" |
2134 | build_xm_include_list="${build_xm_include_list} $f" | |
2135 | ;; | |
2136 | * ) | |
2137 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
2138 | build_xm_include_list="${build_xm_include_list} config/$f" | |
2139 | ;; | |
de5102fe | 2140 | esac |
0045e563 | 2141 | done |
01dc27ef | 2142 | |
29d774d0 | 2143 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
2144 | # cross-compiler which does not use the native headers and libraries. | |
0fc07c25 | 2145 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
2146 | CROSS= AC_SUBST(CROSS) | |
2147 | ALL=all.internal AC_SUBST(ALL) | |
2148 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
1f87fb84 | 2149 | BUILD_SYSTEM_HEADER_DIR=$SYSTEM_HEADER_DIR AC_SUBST(BUILD_SYSTEM_HEADER_DIR) |
5e368ffe | 2150 | |
1f87fb84 | 2151 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x || |
2152 | test x$build != x$host || test "x$with_build_sysroot" != x; then | |
2153 | if test "x$with_build_sysroot" != x; then | |
2154 | BUILD_SYSTEM_HEADER_DIR=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
2155 | else | |
2156 | BUILD_SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2157 | fi | |
5e368ffe | 2158 | |
1f87fb84 | 2159 | if test x$host != x$target |
2160 | then | |
2161 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
2162 | ALL=all.cross | |
2163 | SYSTEM_HEADER_DIR=$BUILD_SYSTEM_HEADER_DIR | |
2164 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
2165 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
2166 | fi | |
01dc27ef | 2167 | |
1f87fb84 | 2168 | if test "x$with_build_sysroot" != "x"; then |
2169 | target_header_dir="${with_build_sysroot}${native_system_header_dir}" | |
185f440d | 2170 | elif test "x$with_sysroot" = x; then |
2171 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include" | |
185f440d | 2172 | elif test "x$with_sysroot" = xyes; then |
2173 | target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}" | |
2174 | else | |
2175 | target_header_dir="${with_sysroot}${native_system_header_dir}" | |
2176 | fi | |
2177 | else | |
2178 | target_header_dir=${native_system_header_dir} | |
2179 | fi | |
2180 | ||
81aabcf8 | 2181 | # If this is a cross-compiler that does not |
2182 | # have its own set of headers then define | |
2183 | # inhibit_libc | |
2184 | ||
3caddd4e | 2185 | # If this is using newlib, without having the headers available now, |
2186 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
c872ef71 | 2187 | # This prevents libgcc2 from containing any code which requires libc |
2188 | # support. | |
58a8c75f | 2189 | : ${inhibit_libc=false} |
3caddd4e | 2190 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
2191 | test x$with_newlib = xyes ; } && | |
185f440d | 2192 | { test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then |
a99be165 | 2193 | inhibit_libc=true |
81aabcf8 | 2194 | fi |
2195 | AC_SUBST(inhibit_libc) | |
2196 | ||
0fc07c25 | 2197 | # When building gcc with a cross-compiler, we need to adjust things so |
2198 | # that the generator programs are still built with the native compiler. | |
f2397fc4 | 2199 | # Also, we cannot run fixincludes. |
0fc07c25 | 2200 | |
2201 | # These are the normal (build=host) settings: | |
58933515 | 2202 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
a44c8c3b | 2203 | CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD) |
805e22b2 | 2204 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
a44c8c3b | 2205 | BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS) |
9841cd80 | 2206 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
0fc07c25 | 2207 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
4c05f6ec | 2208 | |
571e5fe1 | 2209 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS) |
2210 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG) | |
2211 | ||
c19ee476 | 2212 | # And these apply if build != host, or we are generating coverage data |
2213 | if test x$build != x$host || test "x$coverage_flags" != x | |
0045e563 | 2214 | then |
4a867005 | 2215 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
32ba5f0b | 2216 | BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)' |
9841cd80 | 2217 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
571e5fe1 | 2218 | |
2219 | NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}} | |
2220 | NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}} | |
2221 | BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)' | |
2222 | BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)' | |
0045e563 | 2223 | fi |
571e5fe1 | 2224 | AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD) |
2225 | AC_SUBST(NO_PIE_FLAG_FOR_BUILD) | |
01dc27ef | 2226 | |
33fd845b | 2227 | # Expand extra_headers to include complete path. |
2228 | # This substitutes for lots of t-* files. | |
2229 | extra_headers_list= | |
a78cd2c1 | 2230 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
2231 | for file in ${extra_headers} ; do | |
2232 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
2233 | done | |
33fd845b | 2234 | |
50388ca3 | 2235 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
2236 | if test x"$use_gcc_tgmath" = xyes | |
2237 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
2238 | fi | |
2239 | ||
e08c7853 | 2240 | # Define collect2 in Makefile. |
2241 | case $host_can_use_collect2 in | |
2242 | no) collect2= ;; | |
2243 | *) collect2='collect2$(exeext)' ;; | |
2244 | esac | |
2245 | AC_SUBST([collect2]) | |
2246 | ||
0045e563 | 2247 | # Add a definition of USE_COLLECT2 if system wants one. |
7349ace9 | 2248 | case $use_collect2 in |
2249 | no) use_collect2= ;; | |
2250 | "") ;; | |
2251 | *) | |
2252 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
2253 | xm_defines="${xm_defines} USE_COLLECT2" | |
e08c7853 | 2254 | case $host_can_use_collect2 in |
2255 | no) | |
2256 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
2257 | ;; | |
2258 | esac | |
7349ace9 | 2259 | ;; |
2260 | esac | |
0045e563 | 2261 | |
ca42e774 | 2262 | AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", |
2263 | [Define to the name of the LTO plugin DSO that must be | |
2264 | passed to the linker's -plugin=LIB option.]) | |
2265 | ||
d8a2ca58 | 2266 | # --------------------------- |
2267 | # Assembler & linker features | |
2268 | # --------------------------- | |
2269 | ||
794723c1 | 2270 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
2271 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
2272 | # However when ld-new is first executed from the build tree, libtool will | |
2273 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
2274 | # to the build tree. While doing this we need to use the previous-stage | |
2275 | # linker, or we have an infinite loop. The presence of a shell script as | |
2276 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
2277 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
2278 | # exec-tool will fail. | |
2279 | ||
2280 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
2281 | AC_PROG_LIBTOOL | |
2282 | AC_SUBST(objdir) | |
2283 | AC_SUBST(enable_fast_install) | |
2284 | ||
d2aaa43f | 2285 | # Identify the assembler which will work hand-in-glove with the newly |
2286 | # built GCC, so that we can examine its features. This is the assembler | |
2287 | # which will be driven by the driver program. | |
2288 | # | |
2289 | # If build != host, and we aren't building gas in-tree, we identify a | |
2290 | # build->target assembler and hope that it will have the same features | |
2291 | # as the host->target assembler we'll be using. | |
398f3874 | 2292 | gcc_cv_gas_major_version= |
2293 | gcc_cv_gas_minor_version= | |
0a4f4d70 | 2294 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
c47832b1 | 2295 | |
2296 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
2297 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
f8b7dbdb | 2298 | if test -x "$DEFAULT_ASSEMBLER"; then |
2299 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
e757a6a8 | 2300 | elif test -f $gcc_cv_as_gas_srcdir/configure.ac \ |
58220290 | 2301 | && test -f ../gas/Makefile \ |
2302 | && test x$build = x$host; then | |
c47832b1 | 2303 | gcc_cv_as=../gas/as-new$build_exeext |
2304 | elif test -x as$build_exeext; then | |
2305 | # Build using assembler in the current directory. | |
2306 | gcc_cv_as=./as$build_exeext | |
f3599371 | 2307 | elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2308 | gcc_cv_as="$AS_FOR_TARGET" |
2309 | else | |
2310 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
2311 | fi]) | |
2312 | ||
2313 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
2314 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
bdbe7091 | 2315 | case "$ORIGINAL_AS_FOR_TARGET" in |
2316 | ./as | ./as$build_exeext) ;; | |
2317 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
2318 | esac | |
c47832b1 | 2319 | |
2320 | AC_MSG_CHECKING(what assembler to use) | |
2321 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
58220290 | 2322 | # Single tree build which includes gas. We want to prefer it |
2323 | # over whatever linker top-level may have detected, since | |
2324 | # we'll use what we're building after installation anyway. | |
c47832b1 | 2325 | AC_MSG_RESULT(newly built gas) |
667fe30b | 2326 | in_tree_gas=yes |
2327 | _gcc_COMPUTE_GAS_VERSION | |
0dac358a | 2328 | in_tree_gas_is_elf=no |
2329 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
2330 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
2331 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
2332 | then | |
2333 | in_tree_gas_is_elf=yes | |
2334 | fi | |
c47832b1 | 2335 | else |
2336 | AC_MSG_RESULT($gcc_cv_as) | |
2337 | in_tree_gas=no | |
398f3874 | 2338 | fi |
2339 | ||
9b4ea463 | 2340 | default_ld= |
2341 | AC_ARG_ENABLE(ld, | |
2342 | [[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]], | |
2343 | [case "${enableval}" in | |
2344 | no) | |
2345 | default_ld=ld.gold | |
2346 | ;; | |
2347 | esac]) | |
2348 | ||
560d6bb9 | 2349 | install_gold_as_default=no |
9b4ea463 | 2350 | AC_ARG_ENABLE(gold, |
2351 | [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]], | |
2352 | [case "${enableval}" in | |
2353 | default) | |
2354 | install_gold_as_default=yes | |
2355 | ;; | |
2356 | yes) | |
2357 | if test x${default_ld} != x; then | |
2358 | install_gold_as_default=yes | |
2359 | fi | |
2360 | ;; | |
2361 | no) | |
2362 | ;; | |
2363 | *) | |
2364 | AC_MSG_ERROR([invalid --enable-gold argument]) | |
2365 | ;; | |
560d6bb9 | 2366 | esac]) |
9b4ea463 | 2367 | |
d2aaa43f | 2368 | # Identify the linker which will work hand-in-glove with the newly |
2369 | # built GCC, so that we can examine its features. This is the linker | |
2370 | # which will be driven by the driver program. | |
2371 | # | |
2372 | # If build != host, and we aren't building gas in-tree, we identify a | |
2373 | # build->target linker and hope that it will have the same features | |
2374 | # as the host->target linker we'll be using. | |
0d6378a9 | 2375 | gcc_cv_gld_major_version= |
2376 | gcc_cv_gld_minor_version= | |
2377 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
9b4ea463 | 2378 | gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold |
0d6378a9 | 2379 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd |
c47832b1 | 2380 | |
2381 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
0d6378a9 | 2382 | if test -x "$DEFAULT_LINKER"; then |
2383 | gcc_cv_ld="$DEFAULT_LINKER" | |
9b4ea463 | 2384 | elif test $install_gold_as_default = yes \ |
2385 | && test -f $gcc_cv_ld_gold_srcdir/configure.ac \ | |
2386 | && test -f ../gold/Makefile \ | |
2387 | && test x$build = x$host; then | |
2388 | gcc_cv_ld=../gold/ld-new$build_exeext | |
e757a6a8 | 2389 | elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \ |
58220290 | 2390 | && test -f ../ld/Makefile \ |
2391 | && test x$build = x$host; then | |
c47832b1 | 2392 | gcc_cv_ld=../ld/ld-new$build_exeext |
2393 | elif test -x collect-ld$build_exeext; then | |
2394 | # Build using linker in the current directory. | |
2395 | gcc_cv_ld=./collect-ld$build_exeext | |
f3599371 | 2396 | elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2397 | gcc_cv_ld="$LD_FOR_TARGET" |
2398 | else | |
2399 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
2400 | fi]) | |
2401 | ||
a93e9832 | 2402 | ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld |
61f41b94 | 2403 | PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"` |
eadecd28 | 2404 | # if the PLUGIN_LD is set ld-new, just have it as ld |
2405 | # as that is the installed named. | |
71f006b8 | 2406 | if test x$PLUGIN_LD_SUFFIX = xld-new \ |
2407 | || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then | |
eadecd28 | 2408 | PLUGIN_LD_SUFFIX=ld |
2409 | fi | |
a93e9832 | 2410 | AC_ARG_WITH(plugin-ld, |
bc6c87c1 | 2411 | [AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])], |
a93e9832 | 2412 | [if test x"$withval" != x; then |
2413 | ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" | |
8afc0d84 | 2414 | PLUGIN_LD_SUFFIX="$withval" |
a93e9832 | 2415 | fi]) |
2416 | AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) | |
61f41b94 | 2417 | AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker]) |
a93e9832 | 2418 | |
c2ce8e07 | 2419 | # Check to see if we are using gold instead of ld |
2420 | AC_MSG_CHECKING(whether we are using gold) | |
2421 | ld_is_gold=no | |
2422 | if test x$gcc_cv_ld != x; then | |
2423 | if $gcc_cv_ld --version 2>/dev/null | sed 1q \ | |
2424 | | grep "GNU gold" > /dev/null; then | |
2425 | ld_is_gold=yes | |
2426 | fi | |
2427 | fi | |
2428 | AC_MSG_RESULT($ld_is_gold) | |
2429 | ||
e97f880e | 2430 | AC_MSG_CHECKING(gold linker with split stack support as non default) |
2431 | # Check to see if default ld is not gold, but gold is | |
2432 | # available and has support for split stack. If gcc was configured | |
2433 | # with gold then no checking is done. | |
2434 | # | |
2435 | if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then | |
2436 | ||
2437 | # For platforms other than powerpc64*, enable as appropriate. | |
2438 | ||
2439 | gold_non_default=no | |
2440 | ld_gold=`which ${gcc_cv_ld}.gold` | |
2441 | # Make sure this gold has minimal split stack support | |
2442 | if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
2443 | ld_vers=`$ld_gold --version | sed 1q` | |
2444 | gold_vers=`echo $ld_vers | sed -n \ | |
2445 | -e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'` | |
2446 | case $target in | |
2447 | # check that the gold version contains the complete split stack support | |
2448 | # on powerpc64 big and little endian | |
2449 | powerpc64*-*-*) | |
2450 | case "$gold_vers" in | |
2451 | 2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes | |
2452 | ;; | |
2453 | *) gold_non_default=no | |
2454 | ;; | |
2455 | esac | |
2456 | ;; | |
2457 | esac | |
2458 | fi | |
2459 | if test $gold_non_default = yes; then | |
2460 | AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1, | |
2461 | [Define if the gold linker supports split stack and is available as a non-default]) | |
2462 | fi | |
2463 | fi | |
2464 | AC_MSG_RESULT($gold_non_default) | |
2465 | ||
c47832b1 | 2466 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld |
2467 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
bdbe7091 | 2468 | case "$ORIGINAL_LD_FOR_TARGET" in |
2469 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
2470 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
2471 | esac | |
c47832b1 | 2472 | |
2473 | AC_MSG_CHECKING(what linker to use) | |
c5f741b3 | 2474 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \ |
2475 | || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then | |
58220290 | 2476 | # Single tree build which includes ld. We want to prefer it |
2477 | # over whatever linker top-level may have detected, since | |
2478 | # we'll use what we're building after installation anyway. | |
c47832b1 | 2479 | AC_MSG_RESULT(newly built ld) |
7349ace9 | 2480 | in_tree_ld=yes |
0dac358a | 2481 | in_tree_ld_is_elf=no |
2482 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
092f763e | 2483 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
2484 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
0dac358a | 2485 | in_tree_ld_is_elf=yes |
c5f741b3 | 2486 | elif test "$ld_is_gold" = yes; then |
2487 | in_tree_ld_is_elf=yes | |
0dac358a | 2488 | fi |
e757a6a8 | 2489 | 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 | 2490 | do |
2491 | changequote(,)dnl | |
06c2a8a3 | 2492 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f` |
0d6378a9 | 2493 | if test x$gcc_cv_gld_version != x; then |
2494 | break | |
2495 | fi | |
2496 | done | |
06c2a8a3 | 2497 | case $gcc_cv_gld_version in |
2498 | VERSION=[0-9]*) ;; | |
2499 | changequote([,])dnl | |
2500 | *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;; | |
2501 | changequote(,)dnl | |
2502 | esac | |
0d6378a9 | 2503 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
2504 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
2505 | changequote([,])dnl | |
9b4ea463 | 2506 | ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext |
2507 | ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext | |
c47832b1 | 2508 | else |
2509 | AC_MSG_RESULT($gcc_cv_ld) | |
2510 | in_tree_ld=no | |
9b4ea463 | 2511 | gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext` |
2512 | ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext | |
2513 | ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext | |
0d6378a9 | 2514 | fi |
2515 | ||
9b4ea463 | 2516 | AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET) |
2517 | AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET) | |
2518 | ||
398f3874 | 2519 | # Figure out what nm we will be using. |
37c5bbf8 | 2520 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
c47832b1 | 2521 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
e757a6a8 | 2522 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
13648950 | 2523 | && test -f ../binutils/Makefile \ |
2524 | && test x$build = x$host; then | |
f32e3360 | 2525 | gcc_cv_nm=../binutils/nm-new$build_exeext |
2526 | elif test -x nm$build_exeext; then | |
68c3d71c | 2527 | gcc_cv_nm=./nm$build_exeext |
f3599371 | 2528 | elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2529 | gcc_cv_nm="$NM_FOR_TARGET" |
2530 | else | |
2531 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
2532 | fi]) | |
f32e3360 | 2533 | |
f32e3360 | 2534 | AC_MSG_CHECKING(what nm to use) |
c47832b1 | 2535 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
2536 | # Single tree build which includes binutils. | |
2537 | AC_MSG_RESULT(newly built nm) | |
2538 | in_tree_nm=yes | |
2539 | else | |
2540 | AC_MSG_RESULT($gcc_cv_nm) | |
2541 | in_tree_nm=no | |
2542 | fi | |
2543 | ||
2544 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
2545 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
bdbe7091 | 2546 | case "$ORIGINAL_NM_FOR_TARGET" in |
2547 | ./nm | ./nm$build_exeext) ;; | |
2548 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
2549 | esac | |
2550 | ||
398f3874 | 2551 | |
74e387fc | 2552 | # Figure out what objdump we will be using. |
c47832b1 | 2553 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
e757a6a8 | 2554 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
13648950 | 2555 | && test -f ../binutils/Makefile \ |
2556 | && test x$build = x$host; then | |
37c5bbf8 | 2557 | # Single tree build which includes binutils. |
f32e3360 | 2558 | gcc_cv_objdump=../binutils/objdump$build_exeext |
ae74ffb7 | 2559 | elif test -x objdump$build_exeext; then |
2560 | gcc_cv_objdump=./objdump$build_exeext | |
f3599371 | 2561 | elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then |
c47832b1 | 2562 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" |
2563 | else | |
2564 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2565 | fi]) | |
ae74ffb7 | 2566 | |
ae74ffb7 | 2567 | AC_MSG_CHECKING(what objdump to use) |
c47832b1 | 2568 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2569 | # Single tree build which includes binutils. | |
2570 | AC_MSG_RESULT(newly built objdump) | |
2571 | elif test x$gcc_cv_objdump = x; then | |
2572 | AC_MSG_RESULT(not found) | |
2573 | else | |
2574 | AC_MSG_RESULT($gcc_cv_objdump) | |
2575 | fi | |
74e387fc | 2576 | |
8eac5d17 | 2577 | # Figure out what readelf we will be using. |
2578 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
e757a6a8 | 2579 | if test -f $gcc_cv_binutils_srcdir/configure.ac \ |
8eac5d17 | 2580 | && test -f ../binutils/Makefile \ |
2581 | && test x$build = x$host; then | |
2582 | # Single tree build which includes binutils. | |
2583 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2584 | elif test -x readelf$build_exeext; then | |
2585 | gcc_cv_readelf=./readelf$build_exeext | |
c5b80c25 | 2586 | elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then |
2587 | gcc_cv_readelf="$READELF_FOR_TARGET" | |
8eac5d17 | 2588 | else |
c5b80c25 | 2589 | AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET) |
8eac5d17 | 2590 | fi]) |
2591 | ||
2592 | AC_MSG_CHECKING(what readelf to use) | |
2593 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2594 | # Single tree build which includes binutils. | |
2595 | AC_MSG_RESULT(newly built readelf) | |
2596 | elif test x$gcc_cv_readelf = x; then | |
2597 | AC_MSG_RESULT(not found) | |
2598 | else | |
2599 | AC_MSG_RESULT($gcc_cv_readelf) | |
2600 | fi | |
2601 | ||
16706a2e | 2602 | # Figure out what otool we will be using. |
2603 | AS_VAR_SET_IF(gcc_cv_otool,, [ | |
2604 | if test -x otool$build_exeext; then | |
2605 | gcc_cv_otool=./otool$build_exeext | |
2606 | elif ( set dummy $OTOOL_FOR_TARGET; test -x $[2] ); then | |
2607 | gcc_cv_otool="$OTOOL_FOR_TARGET" | |
2608 | else | |
2609 | AC_PATH_PROG(gcc_cv_otool, $OTOOL_FOR_TARGET) | |
2610 | fi]) | |
2611 | ||
2612 | AC_MSG_CHECKING(what otool to use) | |
2613 | if test x$gcc_cv_otool = x; then | |
2614 | AC_MSG_RESULT(not found) | |
2615 | else | |
2616 | AC_MSG_RESULT($gcc_cv_otool) | |
2617 | fi | |
2618 | ||
398f3874 | 2619 | # Figure out what assembler alignment features are present. |
6d6c1801 | 2620 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2621 | [2,6,0],, | |
2622 | [.balign 4 | |
2623 | .p2align 2],, | |
2624 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2625 | [Define if your assembler supports .balign and .p2align.])]) | |
2626 | ||
2627 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2628 | [2,8,0],, | |
2629 | [.p2align 4,,7],, | |
2630 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2631 | [Define if your assembler supports specifying the maximum number | |
2632 | of bytes to skip when using the GAS .p2align command.])]) | |
2633 | ||
4be92808 | 2634 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2635 | [2,8,0],, | |
2636 | [.literal16],, | |
2637 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2638 | [Define if your assembler supports .literal16.])]) | |
2639 | ||
6d6c1801 | 2640 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2641 | [elf,2,9,0],, | |
2642 | [conftest_label1: .word 0 | |
b6d28b19 | 2643 | .subsection -1 |
2644 | conftest_label2: .word 0 | |
6d6c1801 | 2645 | .previous], |
2646 | [if test x$gcc_cv_nm != x; then | |
2647 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2648 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2649 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2650 | then : | |
2651 | else gcc_cv_as_subsection_m1=yes | |
2652 | fi | |
2653 | rm -f conftest.nm1 conftest.nm2 | |
2654 | fi], | |
2655 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2656 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2657 | emitting at the beginning of your section.])]) | |
2658 | ||
2659 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2660 | [2,2,0],, | |
2661 | [ .weak foobar],, | |
2662 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2663 | ||
f4a30bd7 | 2664 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2665 | [2,17,0],, | |
2666 | [ .weakref foobar, barfnot],, | |
2667 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2668 | ||
2455c36b | 2669 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2670 | [2,15,91],, | |
2671 | [ .SPACE $TEXT$ | |
2672 | .NSUBSPA $CODE$,COMDAT],, | |
2673 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2674 | ||
6d6c1801 | 2675 | # .hidden needs to be supported in both the assembler and the linker, |
2676 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2677 | # This is irritatingly difficult to feature test for; we have to check the | |
2678 | # date string after the version number. If we've got an in-tree | |
2679 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2680 | # to be safe. | |
2681 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
3b118414 | 2682 | case "${target}" in |
2683 | *-*-aix*) | |
2684 | conftest_s=' .globl foobar,hidden' | |
2685 | ;; | |
2686 | *) | |
2687 | conftest_s=' .hidden foobar | |
2688 | foobar:' | |
2689 | ;; | |
2690 | esac | |
6d6c1801 | 2691 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, |
3b118414 | 2692 | [elf,2,13,0],, [$conftest_s]) |
b9099475 | 2693 | case "${target}" in |
2694 | *-*-darwin*) | |
2695 | # Darwin as has some visibility support, though with a different syntax. | |
2696 | gcc_cv_as_hidden=yes | |
2697 | ;; | |
2698 | esac | |
6d6c1801 | 2699 | |
85c0a25c | 2700 | # gnu_indirect_function type is an extension proposed at |
2701 | # http://groups.google/com/group/generic-abi/files. It allows dynamic runtime | |
2702 | # selection of function implementation | |
1c6e0788 | 2703 | AC_ARG_ENABLE(gnu-indirect-function, |
2704 | [AS_HELP_STRING([--enable-gnu-indirect-function], | |
2705 | [enable the use of the @gnu_indirect_function to glibc systems])], | |
2706 | [case $enable_gnu_indirect_function in | |
2707 | yes | no) ;; | |
2708 | *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function. | |
2709 | Valid choices are 'yes' and 'no'.]) ;; | |
2710 | esac], | |
2711 | [enable_gnu_indirect_function="$default_gnu_indirect_function"]) | |
df9f2e40 | 2712 | |
2713 | gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi` | |
2714 | AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif, | |
2715 | [Define if your system supports gnu indirect functions.]) | |
2716 | ||
85c0a25c | 2717 | |
02bc02b1 | 2718 | changequote(,)dnl |
2719 | if test $in_tree_ld != yes ; then | |
2720 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
c5f741b3 | 2721 | if echo "$ld_ver" | grep GNU > /dev/null; then |
2722 | if test x"$ld_is_gold" = xyes; then | |
2723 | # GNU gold --version looks like this: | |
2724 | # | |
2725 | # GNU gold (GNU Binutils 2.21.51.20110225) 1.11 | |
2726 | # | |
2727 | # We extract the binutils version which is more familiar and specific | |
2728 | # than the gold version. | |
2729 | ld_vers=`echo $ld_ver | sed -n \ | |
2730 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
2731 | else | |
2732 | # GNU ld --version looks like this: | |
2733 | # | |
2734 | # GNU ld (GNU Binutils) 2.21.51.20110225 | |
2735 | ld_vers=`echo $ld_ver | sed -n \ | |
2736 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2737 | fi | |
02bc02b1 | 2738 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
2739 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2740 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2741 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
dfbfdd90 | 2742 | else |
2743 | case "${target}" in | |
2744 | *-*-solaris2*) | |
e1c571cf | 2745 | # Solaris 2 ld -V output looks like this for a regular version: |
dfbfdd90 | 2746 | # |
e1c571cf | 2747 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699 |
2748 | # | |
2749 | # but test versions add stuff at the end: | |
2750 | # | |
2751 | # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10 | |
2752 | # | |
e1c571cf | 2753 | # ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version |
2754 | # numbers can be used in ld.so.1 feature checks even if a different | |
2755 | # linker is configured. | |
dfbfdd90 | 2756 | ld_ver=`$gcc_cv_ld -V 2>&1` |
015164b9 | 2757 | if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then |
dfbfdd90 | 2758 | ld_vers=`echo $ld_ver | sed -n \ |
015164b9 | 2759 | -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'` |
dfbfdd90 | 2760 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2761 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2762 | fi | |
2763 | ;; | |
2764 | esac | |
02bc02b1 | 2765 | fi |
2766 | fi | |
2767 | changequote([,])dnl | |
2768 | ||
6d6c1801 | 2769 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, |
a6b57da2 | 2770 | [[if test $in_tree_ld = yes ; then |
6d6c1801 | 2771 | gcc_cv_ld_hidden=no |
2772 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2773 | && test $in_tree_ld_is_elf = yes; then | |
2774 | gcc_cv_ld_hidden=yes | |
2775 | fi | |
2776 | else | |
2777 | gcc_cv_ld_hidden=yes | |
c5f741b3 | 2778 | if test x"$ld_is_gold" = xyes; then |
2779 | : | |
2780 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
1305227a | 2781 | case "${target}" in |
2782 | mmix-knuth-mmixware) | |
2783 | # The linker emits by default mmo, not ELF, so "no" is appropriate. | |
2784 | gcc_cv_ld_hidden=no | |
2785 | ;; | |
2786 | esac | |
6d6c1801 | 2787 | if test 0"$ld_date" -lt 20020404; then |
2788 | if test -n "$ld_date"; then | |
2789 | # If there was date string, but was earlier than 2002-04-04, fail | |
2790 | gcc_cv_ld_hidden=no | |
2791 | elif test -z "$ld_vers"; then | |
2792 | # If there was no date string nor ld version number, something is wrong | |
2793 | gcc_cv_ld_hidden=no | |
2794 | else | |
6d6c1801 | 2795 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2796 | if test "$ld_vers_major" -lt 2; then | |
2797 | gcc_cv_ld_hidden=no | |
2798 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2799 | gcc_cv_ld_hidden="no" | |
2800 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2801 | gcc_cv_ld_hidden=no | |
a985a485 | 2802 | fi |
6d6c1801 | 2803 | fi |
61ab9ea9 | 2804 | fi |
6d6c1801 | 2805 | else |
6f8f5d6c | 2806 | case "${target}" in |
3b118414 | 2807 | *-*-aix[789]*) |
2808 | gcc_cv_ld_hidden=yes | |
2809 | ;; | |
b9099475 | 2810 | *-*-darwin*) |
2811 | # Darwin ld has some visibility support. | |
2812 | gcc_cv_ld_hidden=yes | |
2813 | ;; | |
ecb7c90c | 2814 | hppa64*-*-hpux* | ia64*-*-hpux*) |
6f8f5d6c | 2815 | gcc_cv_ld_hidden=yes |
2816 | ;; | |
0fd03648 | 2817 | *-*-solaris2*) |
cbbd336d | 2818 | # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but |
2819 | # .symbolic was only added in Solaris 9 12/02. | |
8177d9d5 | 2820 | gcc_cv_ld_hidden=yes |
2821 | ;; | |
6f8f5d6c | 2822 | *) |
2823 | gcc_cv_ld_hidden=no | |
2824 | ;; | |
2825 | esac | |
6d6c1801 | 2826 | fi |
a6b57da2 | 2827 | fi]]) |
6d6c1801 | 2828 | libgcc_visibility=no |
e8c2499b | 2829 | AC_SUBST(libgcc_visibility) |
fcd42b1e | 2830 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0b4b4686 | 2831 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
6d6c1801 | 2832 | libgcc_visibility=yes |
2833 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2834 | [Define if your assembler and linker support .hidden.]) | |
2835 | fi | |
5be729c9 | 2836 | |
e94830ac | 2837 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2838 | gcc_cv_ld_ro_rw_mix=unknown | |
2839 | if test $in_tree_ld = yes ; then | |
2840 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2841 | && test $in_tree_ld_is_elf = yes; then | |
2842 | gcc_cv_ld_ro_rw_mix=read-write | |
2843 | fi | |
2844 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2845 | echo '.section myfoosect, "a"' > conftest1.s | |
2846 | echo '.section myfoosect, "aw"' > conftest2.s | |
2847 | echo '.byte 1' >> conftest2.s | |
2848 | echo '.section myfoosect, "a"' > conftest3.s | |
2849 | echo '.byte 0' >> conftest3.s | |
2850 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2851 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2852 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2853 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2854 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2855 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2856 | | sed -e '/myfoosect/!d' -e N` | |
2857 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2858 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2859 | gcc_cv_ld_ro_rw_mix=read-only | |
2860 | else | |
2861 | gcc_cv_ld_ro_rw_mix=read-write | |
2862 | fi | |
2863 | fi | |
2864 | fi | |
2865 | changequote(,)dnl | |
2866 | rm -f conftest.* conftest[123].* | |
2867 | changequote([,])dnl | |
2868 | fi | |
2869 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2870 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2871 | [Define if your linker links a mix of read-only | |
2872 | and read-write sections into a read-write section.]) | |
2873 | fi | |
2874 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2875 | ||
35f51475 | 2876 | gcc_AC_INITFINI_ARRAY |
2877 | ||
6d6c1801 | 2878 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2879 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2880 | [elf,2,11,0],, | |
2881 | [ .data | |
37a2e188 | 2882 | .uleb128 L2 - L1 |
2883 | L1: | |
2884 | .uleb128 1280 | |
2885 | .sleb128 -1010 | |
6d6c1801 | 2886 | L2:], |
a6b57da2 | 2887 | [[# GAS versions before 2.11 do not support uleb128, |
6d6c1801 | 2888 | # despite appearing to. |
2889 | # ??? There exists an elf-specific test that will crash | |
2890 | # the assembler. Perhaps it's better to figure out whether | |
2891 | # arbitrary sections are supported and try the test. | |
43557a8f | 2892 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
6d6c1801 | 2893 | if echo "$as_ver" | grep GNU > /dev/null; then |
b29dc614 | 2894 | as_vers=`echo $as_ver | sed -n \ |
c7871c82 | 2895 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
b29dc614 | 2896 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2897 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
6d6c1801 | 2898 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2899 | then : | |
2900 | else gcc_cv_as_leb128=yes | |
2901 | fi | |
a6b57da2 | 2902 | fi]], |
6d6c1801 | 2903 | [AC_DEFINE(HAVE_AS_LEB128, 1, |
b4866769 | 2904 | [Define if your assembler supports .sleb128 and .uleb128.])], |
2905 | [AC_DEFINE(HAVE_AS_LEB128, 0, | |
6d6c1801 | 2906 | [Define if your assembler supports .sleb128 and .uleb128.])]) |
2907 | ||
d6a34f83 | 2908 | # Determine if an .eh_frame section is read-only. |
2909 | gcc_fn_eh_frame_ro () { | |
2910 | $gcc_cv_as $1 -o conftest.o conftest.s > /dev/null 2>&1 && \ | |
2911 | $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2912 | sed -e '/.eh_frame/!d' -e N | grep READONLY > /dev/null | |
2913 | } | |
2914 | ||
fb39ff6e | 2915 | # Check if we have assembler support for unwind directives. |
2916 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
90deca2e | 2917 | ,, |
fb39ff6e | 2918 | [ .text |
2919 | .cfi_startproc | |
2920 | .cfi_offset 0, 0 | |
2921 | .cfi_same_value 1 | |
2922 | .cfi_def_cfa 1, 2 | |
2923 | .cfi_escape 1, 2, 3, 4, 5 | |
e94830ac | 2924 | .cfi_endproc], |
2925 | [case "$target" in | |
2926 | *-*-solaris*) | |
2927 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2928 | # read-only and read-write sections, we need to make sure that the | |
2929 | # assembler used emits read-write .eh_frame sections. | |
d6a34f83 | 2930 | if test "x$gcc_cv_ld_ro_rw_mix" = xread-write; then |
2931 | gcc_cv_as_cfi_directive=yes | |
2932 | elif test "x$gcc_cv_objdump" = x; then | |
2933 | # No objdump, err on the side of caution. | |
2934 | gcc_cv_as_cfi_directive=no | |
2935 | else | |
2936 | if test x$gas = xyes; then | |
2937 | as_32_opt="--32" | |
2938 | as_64_opt="--64" | |
e94830ac | 2939 | else |
d6a34f83 | 2940 | as_32_opt="-m32" |
2941 | as_64_opt="-m64" | |
e94830ac | 2942 | fi |
d6a34f83 | 2943 | case "$target" in |
2944 | sparc*-*-solaris2.*) | |
2945 | # On Solaris/SPARC, .eh_frame sections should always be read-write. | |
2946 | if gcc_fn_eh_frame_ro $as_32_opt \ | |
2947 | || gcc_fn_eh_frame_ro $as_64_opt; then | |
2948 | gcc_cv_as_cfi_directive=no | |
2949 | else | |
2950 | gcc_cv_as_cfi_directive=yes | |
2951 | fi | |
2952 | ;; | |
2953 | i?86-*-solaris2.* | x86_64-*-solaris2.*) | |
2954 | # On Solaris/x86, make sure that GCC and assembler agree on using | |
2955 | # read-only .eh_frame sections for 64-bit. | |
2956 | if gcc_fn_eh_frame_ro $as_32_opt; then | |
2957 | gcc_cv_as_cfi_directive=no | |
2958 | elif gcc_fn_eh_frame_ro $as_64_opt; then | |
2959 | gcc_cv_as_cfi_directive=yes | |
2960 | else | |
2961 | gcc_cv_as_cfi_directive=no | |
2962 | fi | |
2963 | ;; | |
2964 | esac | |
e94830ac | 2965 | fi |
2966 | ;; | |
2967 | *-*-*) | |
2968 | gcc_cv_as_cfi_directive=yes | |
2969 | ;; | |
2970 | esac]) | |
331fc3f2 | 2971 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then |
8eac5d17 | 2972 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, |
2973 | ,, | |
2974 | [ .text | |
2975 | .cfi_startproc | |
2976 | .cfi_adjust_cfa_offset 64 | |
1bf24b5f | 2977 | .skip 75040, 0 |
8eac5d17 | 2978 | .cfi_adjust_cfa_offset 128 |
2979 | .cfi_endproc], | |
a6b57da2 | 2980 | [[ |
331fc3f2 | 2981 | if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \ |
1bf24b5f | 2982 | | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then |
8eac5d17 | 2983 | gcc_cv_as_cfi_advance_working=yes |
2984 | fi | |
a6b57da2 | 2985 | ]]) |
8eac5d17 | 2986 | else |
331fc3f2 | 2987 | # no objdump, err on the side of caution |
f9a42338 | 2988 | gcc_cv_as_cfi_advance_working=no |
8eac5d17 | 2989 | fi |
ff5f1a52 | 2990 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE) |
fb39ff6e | 2991 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
8eac5d17 | 2992 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2993 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
3dcd5df1 | 2994 | [Define 0/1 if your assembler supports CFI directives.]) |
2995 | ||
ff5f1a52 | 2996 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE) |
3dcd5df1 | 2997 | gcc_GAS_CHECK_FEATURE([cfi personality directive], |
90deca2e | 2998 | gcc_cv_as_cfi_personality_directive, ,, |
3dcd5df1 | 2999 | [ .text |
846a6223 | 3000 | .cfi_startproc |
3dcd5df1 | 3001 | .cfi_personality 0, symbol |
3002 | .cfi_endproc]) | |
3003 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
f00f02a3 | 3004 | [`if test $gcc_cv_as_cfi_personality_directive = yes; then echo 1; else echo 0; fi`], |
3dcd5df1 | 3005 | [Define 0/1 if your assembler supports .cfi_personality.]) |
fb39ff6e | 3006 | |
033a2356 | 3007 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
3008 | gcc_cv_as_cfi_sections_directive, ,, | |
3009 | [ .text | |
3010 | .cfi_sections .debug_frame, .eh_frame | |
3011 | .cfi_startproc | |
331fc3f2 | 3012 | .cfi_endproc], |
3013 | [case $target_os in | |
297677bc | 3014 | win32 | pe | cygwin* | mingw32*) |
331fc3f2 | 3015 | # Need to check that we generated the correct relocation for the |
3016 | # .debug_frame section. This was fixed for binutils 2.21. | |
3017 | gcc_cv_as_cfi_sections_directive=no | |
3018 | if test "x$gcc_cv_objdump" != x; then | |
3019 | if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \ | |
3020 | grep secrel > /dev/null; then | |
3021 | gcc_cv_as_cfi_sections_directive=yes | |
3022 | fi | |
3023 | fi | |
3024 | ;; | |
3025 | *) | |
3026 | gcc_cv_as_cfi_sections_directive=yes | |
3027 | ;; | |
3028 | esac]) | |
ff5f1a52 | 3029 | GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE) |
033a2356 | 3030 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, |
f00f02a3 | 3031 | [`if test $gcc_cv_as_cfi_sections_directive = yes; then echo 1; else echo 0; fi`], |
033a2356 | 3032 | [Define 0/1 if your assembler supports .cfi_sections.]) |
3033 | ||
6d6c1801 | 3034 | # GAS versions up to and including 2.11.0 may mis-optimize |
3035 | # .eh_frame data. | |
3036 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
3037 | [elf,2,12,0],, | |
3038 | [ .text | |
c3f311c4 | 3039 | .LFB1: |
3040 | .4byte 0 | |
3041 | .L1: | |
3042 | .4byte 0 | |
3043 | .LFE1: | |
3044 | .section .eh_frame,"aw",@progbits | |
3045 | __FRAME_BEGIN__: | |
3046 | .4byte .LECIE1-.LSCIE1 | |
3047 | .LSCIE1: | |
3048 | .4byte 0x0 | |
3049 | .byte 0x1 | |
3050 | .ascii "z\0" | |
3051 | .byte 0x1 | |
3052 | .byte 0x78 | |
3053 | .byte 0x1a | |
3054 | .byte 0x0 | |
3055 | .byte 0x4 | |
3056 | .4byte 1 | |
3057 | .p2align 1 | |
3058 | .LECIE1: | |
3059 | .LSFDE1: | |
3060 | .4byte .LEFDE1-.LASFDE1 | |
3061 | .LASFDE1: | |
3062 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
3063 | .4byte .LFB1 | |
3064 | .4byte .LFE1-.LFB1 | |
3065 | .byte 0x4 | |
3066 | .4byte .LFE1-.LFB1 | |
3067 | .byte 0x4 | |
3068 | .4byte .L1-.LFB1 | |
6d6c1801 | 3069 | .LEFDE1:], |
6a8964db | 3070 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
3071 | cat > conftest.lit <<EOF | |
c3f311c4 | 3072 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
3073 | 0010 01000000 12000000 18000000 00000000 ................ | |
6a8964db | 3074 | 0020 08000000 04080000 0044 .........D @&t@ |
82ebecf9 | 3075 | EOF |
6a8964db | 3076 | cat > conftest.big <<EOF |
82ebecf9 | 3077 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
3078 | 0010 00000001 00000012 00000018 00000000 ................ | |
6a8964db | 3079 | 0020 00000008 04000000 0844 .........D @&t@ |
c3f311c4 | 3080 | EOF |
6d6c1801 | 3081 | # If the assembler didn't choke, and we can objdump, |
3082 | # and we got the correct data, then succeed. | |
a9e7d751 | 3083 | # The text in the here-document typically retains its unix-style line |
3084 | # endings, while the output of objdump will use host line endings. | |
3085 | # Therefore, use diff -b for the comparisons. | |
6d6c1801 | 3086 | if test x$gcc_cv_objdump != x \ |
3087 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
3088 | | tail -3 > conftest.got \ | |
a9e7d751 | 3089 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
3090 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
6d6c1801 | 3091 | then |
3092 | gcc_cv_as_eh_frame=yes | |
3093 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
3094 | gcc_cv_as_eh_frame=buggy | |
3095 | else | |
3096 | # Uh oh, what do we do now? | |
3097 | gcc_cv_as_eh_frame=no | |
3098 | fi]) | |
3099 | ||
3100 | if test $gcc_cv_as_eh_frame = buggy; then | |
3101 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
3102 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
bb2821c0 | 3103 | fi |
bb2821c0 | 3104 | |
f575e216 | 3105 | # Test if the assembler supports the section flag 'e' or #exclude for |
3106 | # specifying an excluded section. | |
3107 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e, | |
3108 | [2,22,51], [--fatal-warnings], | |
3109 | [.section foo1,"e" | |
3110 | .byte 0,0,0,0]) | |
3111 | if test $gcc_cv_as_section_exclude_e = no; then | |
3112 | case "${target}" in | |
3113 | # Solaris as uses #exclude instead. | |
3114 | *-*-solaris2*) | |
3115 | case "${target}" in | |
3116 | sparc*-*-solaris2*) | |
3117 | conftest_s='.section "foo1", #exclude' | |
3118 | ;; | |
3119 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3120 | conftest_s='.section foo1, #exclude' | |
3121 | ;; | |
3122 | esac | |
3123 | ;; | |
3124 | esac | |
3125 | gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,, | |
3126 | [$conftest_s | |
3127 | .byte 0,0,0,0]) | |
3128 | fi | |
3129 | AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE, | |
3130 | [`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`], | |
3131 | [Define if your assembler supports specifying the exclude section flag.]) | |
3132 | ||
6d6c1801 | 3133 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
3134 | [elf,2,12,0], [--fatal-warnings], | |
cdb2d692 | 3135 | [.section .rodata.str, "aMS", @progbits, 1]) |
537cd941 | 3136 | if test $gcc_cv_as_shf_merge = no; then |
3137 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
3138 | [elf,2,12,0], [--fatal-warnings], | |
3139 | [.section .rodata.str, "aMS", %progbits, 1]) | |
3140 | fi | |
cdb2d692 | 3141 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
3142 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3143 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
6d6c1801 | 3144 | |
fa948efa | 3145 | gcc_cv_ld_aligned_shf_merge=yes |
3146 | case "$target" in | |
fa948efa | 3147 | # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for |
3148 | # alignment > 1. | |
3149 | sparc*-*-solaris2.11*) | |
3150 | if test x"$gnu_ld" = xno \ | |
3151 | && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then | |
3152 | gcc_cv_ld_aligned_shf_merge=no | |
3153 | fi | |
3154 | ;; | |
3155 | esac | |
3156 | AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE, | |
3157 | [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`], | |
3158 | [Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.]) | |
3159 | ||
ffebb4e7 | 3160 | gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,, |
3161 | [.stabs "gcc2_compiled.",60,0,0,0],, | |
3162 | [AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1, | |
3163 | [Define if your assembler supports .stabs.])]) | |
3164 | ||
3468b0d6 | 3165 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)], |
3166 | gcc_cv_as_comdat_group, | |
2593b9be | 3167 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 3168 | [.section .text,"axG",@progbits,.foo,comdat]) |
3169 | if test $gcc_cv_as_comdat_group = yes; then | |
3170 | gcc_cv_as_comdat_group_percent=no | |
3468b0d6 | 3171 | gcc_cv_as_comdat_group_group=no |
537cd941 | 3172 | else |
3468b0d6 | 3173 | gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)], |
3174 | gcc_cv_as_comdat_group_percent, | |
2593b9be | 3175 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 3176 | [.section .text,"axG",%progbits,.foo,comdat]) |
3468b0d6 | 3177 | if test $gcc_cv_as_comdat_group_percent = yes; then |
3178 | gcc_cv_as_comdat_group_group=no | |
3179 | else | |
3180 | case "${target}" in | |
3181 | # Sun as uses a completely different syntax. | |
3182 | *-*-solaris2*) | |
3183 | case "${target}" in | |
3184 | sparc*-*-solaris2*) | |
3185 | conftest_s=' | |
3186 | .group foo,".text%foo",#comdat | |
3187 | .section ".text%foo", #alloc,#execinstr,#progbits | |
3188 | .globl foo | |
3189 | foo: | |
3190 | ' | |
3191 | ;; | |
0fd03648 | 3192 | i?86-*-solaris2* | x86_64-*-solaris2*) |
3468b0d6 | 3193 | conftest_s=' |
3194 | .group foo,.text%foo,#comdat | |
3195 | .section .text%foo, "ax", @progbits | |
3196 | .globl foo | |
3197 | foo: | |
3198 | ' | |
3199 | ;; | |
3200 | esac | |
3201 | gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)], | |
3202 | gcc_cv_as_comdat_group_group, | |
3203 | ,, [$conftest_s]) | |
3204 | ;; | |
3205 | esac | |
66924b3f | 3206 | if test -z "${gcc_cv_as_comdat_group_group+set}"; then |
3207 | gcc_cv_as_comdat_group_group=no | |
3208 | fi | |
3468b0d6 | 3209 | fi |
537cd941 | 3210 | fi |
c2ce8e07 | 3211 | if test x"$ld_is_gold" = xyes; then |
3212 | comdat_group=yes | |
3213 | elif test $in_tree_ld = yes ; then | |
e97d11c2 | 3214 | comdat_group=no |
3215 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3216 | && test $in_tree_ld_is_elf = yes; then | |
3217 | comdat_group=yes | |
3218 | fi | |
dfbfdd90 | 3219 | elif echo "$ld_ver" | grep GNU > /dev/null; then |
2593b9be | 3220 | comdat_group=yes |
3221 | if test 0"$ld_date" -lt 20050308; then | |
3222 | if test -n "$ld_date"; then | |
3223 | # If there was date string, but was earlier than 2005-03-08, fail | |
3224 | comdat_group=no | |
3225 | elif test "$ld_vers_major" -lt 2; then | |
3226 | comdat_group=no | |
3227 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
3228 | comdat_group=no | |
3229 | fi | |
3230 | fi | |
f3424fe6 | 3231 | else |
dfbfdd90 | 3232 | changequote(,)dnl |
3233 | case "${target}" in | |
3234 | *-*-solaris2.1[1-9]*) | |
3468b0d6 | 3235 | comdat_group=no |
dfbfdd90 | 3236 | # Sun ld has COMDAT group support since Solaris 9, but it doesn't |
3237 | # interoperate with GNU as until Solaris 11 build 130, i.e. ld | |
3238 | # version 1.688. | |
3239 | # | |
3468b0d6 | 3240 | # If using Sun as for COMDAT group as emitted by GCC, one needs at |
3241 | # least ld version 1.2267. | |
3242 | if test "$ld_vers_major" -gt 1; then | |
dfbfdd90 | 3243 | comdat_group=yes |
3468b0d6 | 3244 | elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then |
3245 | comdat_group=yes | |
3246 | elif test "$ld_vers_minor" -ge 2267; then | |
3247 | comdat_group=yes | |
dfbfdd90 | 3248 | fi |
3249 | ;; | |
3250 | *) | |
3251 | # Assume linkers other than GNU ld don't support COMDAT group. | |
3252 | comdat_group=no | |
3253 | ;; | |
3254 | esac | |
3255 | changequote([,])dnl | |
f3424fe6 | 3256 | fi |
dfbfdd90 | 3257 | # Allow overriding the automatic COMDAT group tests above. |
3258 | AC_ARG_ENABLE(comdat, | |
3259 | [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])], | |
3260 | [comdat_group="$enable_comdat"]) | |
f3424fe6 | 3261 | if test $comdat_group = no; then |
3262 | gcc_cv_as_comdat_group=no | |
3263 | gcc_cv_as_comdat_group_percent=no | |
3468b0d6 | 3264 | gcc_cv_as_comdat_group_group=no |
2593b9be | 3265 | fi |
3266 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
3468b0d6 | 3267 | [`if test $gcc_cv_as_comdat_group = yes \ |
3268 | || test $gcc_cv_as_comdat_group_percent = yes \ | |
3269 | || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`], | |
2593b9be | 3270 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
537cd941 | 3271 | |
03cc6d54 | 3272 | # Restrict this test to Solaris/x86: other targets define this statically. |
3273 | case "${target}" in | |
3274 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
3275 | AC_MSG_CHECKING(support for hidden thunks in linkonce sections) | |
3276 | if test $in_tree_ld = yes || echo "$ld_ver" | grep GNU > /dev/null; then | |
3277 | hidden_linkonce=yes | |
3278 | else | |
3279 | case "${target}" in | |
3280 | # Full support for hidden thunks in linkonce sections only appeared in | |
3281 | # Solaris 11/OpenSolaris. | |
3282 | *-*-solaris2.1[[1-9]]*) | |
3283 | hidden_linkonce=yes | |
3284 | ;; | |
3285 | *) | |
3286 | hidden_linkonce=no | |
3287 | ;; | |
3288 | esac | |
3289 | fi | |
3290 | AC_MSG_RESULT($hidden_linkonce) | |
3291 | AC_DEFINE_UNQUOTED(USE_HIDDEN_LINKONCE, | |
3292 | [`if test $hidden_linkonce = yes; then echo 1; else echo 0; fi`], | |
3293 | [Define 0/1 if your linker supports hidden thunks in linkonce sections.]) | |
3294 | ;; | |
3295 | esac | |
3296 | ||
b2bf47a6 | 3297 | gcc_GAS_CHECK_FEATURE([line table is_stmt support], |
3298 | gcc_cv_as_is_stmt, | |
3299 | [2,16,92],, | |
3300 | [ .text | |
3301 | .file 1 "conf.c" | |
3302 | .loc 1 1 0 is_stmt 1],, | |
3303 | [AC_DEFINE(HAVE_GAS_LOC_STMT, 1, | |
3304 | [Define if your assembler supports the .loc is_stmt sub-directive.])]) | |
3305 | ||
d01c707b | 3306 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
3307 | gcc_cv_as_discriminator, | |
3308 | [2,19,51],, | |
3309 | [ .text | |
3310 | .file 1 "conf.c" | |
3311 | .loc 1 1 0 discriminator 1],, | |
3312 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
3313 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
3314 | ||
c656b8fd | 3315 | # Thread-local storage - the check is heavily parameterized. |
2d6788fe | 3316 | conftest_s= |
3317 | tls_first_major= | |
3318 | tls_first_minor= | |
527d5be8 | 3319 | tls_as_opt= |
2d6788fe | 3320 | case "$target" in |
3321 | changequote(,)dnl | |
5f7b9df8 | 3322 | alpha*-*-*) |
3323 | conftest_s=' | |
3324 | .section ".tdata","awT",@progbits | |
3325 | foo: .long 25 | |
3326 | .text | |
3327 | ldq $27,__tls_get_addr($29) !literal!1 | |
3328 | lda $16,foo($29) !tlsgd!1 | |
3329 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
3330 | ldq $27,__tls_get_addr($29) !literal!2 | |
3331 | lda $16,foo($29) !tlsldm!2 | |
3332 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
3333 | ldq $1,foo($29) !gotdtprel | |
3334 | ldah $2,foo($29) !dtprelhi | |
3335 | lda $3,foo($2) !dtprello | |
3336 | lda $4,foo($29) !dtprel | |
3337 | ldq $1,foo($29) !gottprel | |
3338 | ldah $2,foo($29) !tprelhi | |
3339 | lda $3,foo($2) !tprello | |
3340 | lda $4,foo($29) !tprel' | |
3341 | tls_first_major=2 | |
3342 | tls_first_minor=13 | |
07a23b4e | 3343 | tls_as_opt=--fatal-warnings |
5f7b9df8 | 3344 | ;; |
4260aeee | 3345 | arc*-*-*) |
3346 | conftest_s=' | |
3347 | add_s r0,r0, @foo@tpoff' | |
3348 | tls_first_major=2 | |
3349 | tls_first_minor=23 | |
3350 | ;; | |
10178ded | 3351 | cris-*-*|crisv32-*-*) |
3352 | conftest_s=' | |
3353 | .section ".tdata","awT",@progbits | |
3354 | x: .long 25 | |
3355 | .text | |
3356 | move.d x:IE,$r10 | |
3357 | nop' | |
3358 | tls_first_major=2 | |
3359 | tls_first_minor=20 | |
3360 | tls_as_opt=--fatal-warnings | |
3361 | ;; | |
cfd199cb | 3362 | frv*-*-*) |
3363 | conftest_s=' | |
3364 | .section ".tdata","awT",@progbits | |
3365 | x: .long 25 | |
3366 | .text | |
3367 | call #gettlsoff(x)' | |
3368 | tls_first_major=2 | |
3369 | tls_first_minor=14 | |
3370 | ;; | |
716b2c5a | 3371 | hppa*-*-linux*) |
3372 | conftest_s=' | |
3373 | t1: .reg %r20 | |
3374 | t2: .reg %r21 | |
3375 | gp: .reg %r19 | |
3376 | .section ".tdata","awT",@progbits | |
3377 | foo: .long 25 | |
3378 | .text | |
3379 | .align 4 | |
3380 | addil LT%foo-$tls_gdidx$,gp | |
3381 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
3382 | b __tls_get_addr | |
3383 | nop | |
3384 | addil LT%foo-$tls_ldidx$,gp | |
3385 | b __tls_get_addr | |
3386 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
3387 | addil LR%foo-$tls_dtpoff$,%ret0 | |
3388 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
3389 | mfctl %cr27,%t1 | |
3390 | addil LT%foo-$tls_ieoff$,gp | |
3391 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
3392 | add %t1,%t2,%t3 | |
3393 | mfctl %cr27,%t1 | |
3394 | addil LR%foo-$tls_leoff$,%t1 | |
3395 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
3396 | tls_first_major=2 | |
3397 | tls_first_minor=15 | |
3398 | tls_as_opt=--fatal-warnings | |
3399 | ;; | |
f655717d | 3400 | arm*-*-*) |
3401 | conftest_s=' | |
3402 | .section ".tdata","awT",%progbits | |
3403 | foo: .long 25 | |
3404 | .text | |
3405 | .word foo(gottpoff) | |
3406 | .word foo(tpoff) | |
3407 | .word foo(tlsgd) | |
3408 | .word foo(tlsldm) | |
3409 | .word foo(tlsldo)' | |
3410 | tls_first_major=2 | |
3411 | tls_first_minor=17 | |
3412 | ;; | |
cb648ea4 | 3413 | i[34567]86-*-* | x86_64-*-*) |
7d070520 | 3414 | case "$target" in |
0fd03648 | 3415 | i[34567]86-*-solaris2.* | x86_64-*-solaris2.*) |
7d070520 | 3416 | on_solaris=yes |
14f27bc6 | 3417 | ;; |
7d070520 | 3418 | *) |
3419 | on_solaris=no | |
3420 | ;; | |
3421 | esac | |
3422 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3423 | conftest_s=' | |
3424 | .section .tdata,"awt",@progbits' | |
3425 | tls_first_major=0 | |
3426 | tls_first_minor=0 | |
e727a9cd | 3427 | tls_section_flag=t |
7d070520 | 3428 | changequote([,])dnl |
3429 | AC_DEFINE(TLS_SECTION_ASM_FLAG, 't', | |
3430 | [Define to the flag used to mark TLS sections if the default (`T') doesn't work.]) | |
3431 | changequote(,)dnl | |
3432 | else | |
3433 | conftest_s=' | |
3434 | .section ".tdata","awT",@progbits' | |
3435 | tls_first_major=2 | |
3436 | tls_first_minor=14 | |
e727a9cd | 3437 | tls_section_flag=T |
7d070520 | 3438 | tls_as_opt="--fatal-warnings" |
3439 | fi | |
cb648ea4 | 3440 | case "$target" in |
3441 | i[34567]86-*-*) | |
3442 | conftest_s="$conftest_s | |
2d6788fe | 3443 | foo: .long 25 |
3444 | .text | |
3445 | movl %gs:0, %eax | |
7d070520 | 3446 | leal foo@tlsgd(,%ebx,1), %eax |
3447 | leal foo@tlsldm(%ebx), %eax | |
3448 | leal foo@dtpoff(%eax), %edx | |
3449 | movl foo@gottpoff(%ebx), %eax | |
3450 | subl foo@gottpoff(%ebx), %eax | |
3451 | addl foo@gotntpoff(%ebx), %eax | |
3452 | movl foo@indntpoff, %eax | |
3453 | movl \$foo@tpoff, %eax | |
3454 | subl \$foo@tpoff, %eax | |
3455 | leal foo@ntpoff(%ecx), %eax" | |
cb648ea4 | 3456 | ;; |
3457 | x86_64-*-*) | |
3458 | if test x$on_solaris = xyes; then | |
3459 | case $gas_flag in | |
3460 | yes) tls_as_opt="$tls_as_opt --64" ;; | |
3461 | no) tls_as_opt="$tls_as_opt -xarch=amd64" ;; | |
3462 | esac | |
3463 | fi | |
3464 | conftest_s="$conftest_s | |
29d8dd5c | 3465 | foo: .long 25 |
3466 | .text | |
3467 | movq %fs:0, %rax | |
cb648ea4 | 3468 | leaq foo@tlsgd(%rip), %rdi |
3469 | leaq foo@tlsld(%rip), %rdi | |
3470 | leaq foo@dtpoff(%rax), %rdx | |
3471 | movq foo@gottpoff(%rip), %rax | |
3472 | movq \$foo@tpoff, %rax" | |
3473 | ;; | |
3474 | esac | |
3475 | ;; | |
c87e09ad | 3476 | ia64-*-*) |
3477 | conftest_s=' | |
3478 | .section ".tdata","awT",@progbits | |
3479 | foo: data8 25 | |
3480 | .text | |
3481 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
3482 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
3483 | addl r18 = @ltoff(@tprel(foo#)), gp | |
3484 | addl r19 = @dtprel(foo#), gp | |
3485 | adds r21 = @dtprel(foo#), r13 | |
3486 | movl r23 = @dtprel(foo#) | |
3487 | addl r20 = @tprel(foo#), gp | |
3488 | adds r22 = @tprel(foo#), r13 | |
3489 | movl r24 = @tprel(foo#)' | |
3490 | tls_first_major=2 | |
3491 | tls_first_minor=13 | |
07a23b4e | 3492 | tls_as_opt=--fatal-warnings |
c87e09ad | 3493 | ;; |
4eae25aa | 3494 | microblaze*-*-*) |
3495 | conftest_s=' | |
3496 | .section .tdata,"awT",@progbits | |
3497 | x: | |
3498 | .word 2 | |
3499 | .text | |
3500 | addik r5,r20,x@TLSGD | |
3501 | addik r5,r20,x@TLSLDM' | |
3502 | tls_first_major=2 | |
3503 | tls_first_minor=20 | |
3504 | tls_as_opt='--fatal-warnings' | |
3505 | ;; | |
42bdde4b | 3506 | mips*-*-*) |
3507 | conftest_s=' | |
3508 | .section .tdata,"awT",@progbits | |
3509 | x: | |
3510 | .word 2 | |
3511 | .text | |
3512 | addiu $4, $28, %tlsgd(x) | |
3513 | addiu $4, $28, %tlsldm(x) | |
3514 | lui $4, %dtprel_hi(x) | |
3515 | addiu $4, $4, %dtprel_lo(x) | |
3516 | lw $4, %gottprel(x)($28) | |
3517 | lui $4, %tprel_hi(x) | |
3518 | addiu $4, $4, %tprel_lo(x)' | |
3519 | tls_first_major=2 | |
3520 | tls_first_minor=16 | |
3521 | tls_as_opt='-32 --fatal-warnings' | |
3522 | ;; | |
869bde6b | 3523 | m68k-*-*) |
3524 | conftest_s=' | |
3525 | .section .tdata,"awT",@progbits | |
3526 | x: | |
3527 | .word 2 | |
3528 | .text | |
3529 | foo: | |
3530 | move.l x@TLSGD(%a5),%a0 | |
3531 | move.l x@TLSLDM(%a5),%a0 | |
3532 | move.l x@TLSLDO(%a5),%a0 | |
3533 | move.l x@TLSIE(%a5),%a0 | |
3534 | move.l x@TLSLE(%a5),%a0' | |
3535 | tls_first_major=2 | |
3536 | tls_first_minor=19 | |
3537 | tls_as_opt='--fatal-warnings' | |
3538 | ;; | |
de65406d | 3539 | nios2-*-*) |
3540 | conftest_s=' | |
3541 | .section ".tdata","awT",@progbits' | |
3542 | tls_first_major=2 | |
3543 | tls_first_minor=23 | |
3544 | tls_as_opt="--fatal-warnings" | |
3545 | ;; | |
16878cba | 3546 | aarch64*-*-*) |
3547 | conftest_s=' | |
3548 | .section ".tdata","awT",%progbits | |
3549 | foo: .long 25 | |
3550 | .text | |
3551 | adrp x0, :tlsgd:x | |
3552 | add x0, x0, #:tlsgd_lo12:x | |
3553 | bl __tls_get_addr | |
3554 | nop' | |
3555 | tls_first_major=2 | |
3556 | tls_first_minor=20 | |
3557 | tls_as_opt='--fatal-warnings' | |
3558 | ;; | |
d61fdfe7 | 3559 | or1k*-*-*) |
3560 | conftest_s=' | |
3561 | .section ".tdata","awT",@progbits | |
3562 | foo: .long 25 | |
3563 | .text | |
3564 | l.movhi r3, tpoffha(foo) | |
3565 | l.add r3, r3, r10 | |
3566 | l.lwz r4, tpofflo(foo)(r3)' | |
3567 | tls_first_major=2 | |
3568 | tls_first_minor=30 | |
3569 | tls_as_opt=--fatal-warnings | |
3570 | ;; | |
e69effa4 | 3571 | powerpc-ibm-aix*) |
3572 | conftest_s=' | |
3573 | .extern __get_tpointer | |
3574 | .toc | |
3575 | LC..1: | |
3576 | .tc a[TC],a[TL]@le | |
3577 | .csect .text[PR] | |
3578 | .tlstest: | |
3579 | lwz 9,LC..1(2) | |
3580 | bla __get_tpointer | |
3581 | lwzx 3,9,3 | |
3582 | .globl a | |
3583 | .csect a[TL],4 | |
3584 | a: | |
3585 | .space 4' | |
3586 | tls_first_major=0 | |
3587 | tls_first_minor=0 | |
3588 | ;; | |
e0b071f6 | 3589 | powerpc64*-*-*) |
9b552c45 | 3590 | conftest_s=' |
3591 | .section ".tdata","awT",@progbits | |
3592 | .align 3 | |
3593 | ld0: .space 8 | |
3594 | ld1: .space 8 | |
3595 | x1: .space 8 | |
3596 | x2: .space 8 | |
3597 | x3: .space 8 | |
3598 | .text | |
3599 | addi 3,2,ld0@got@tlsgd | |
3600 | bl .__tls_get_addr | |
3601 | nop | |
3602 | addi 3,2,ld1@toc | |
3603 | bl .__tls_get_addr | |
3604 | nop | |
3605 | addi 3,2,x1@got@tlsld | |
3606 | bl .__tls_get_addr | |
3607 | nop | |
3608 | addi 9,3,x1@dtprel | |
3609 | bl .__tls_get_addr | |
3610 | nop | |
3611 | addis 9,3,x2@dtprel@ha | |
3612 | addi 9,9,x2@dtprel@l | |
3613 | bl .__tls_get_addr | |
3614 | nop | |
3615 | ld 9,x3@got@dtprel(2) | |
3616 | add 9,9,3 | |
3617 | bl .__tls_get_addr | |
3618 | nop' | |
3619 | tls_first_major=2 | |
3620 | tls_first_minor=14 | |
07a23b4e | 3621 | tls_as_opt="-a64 --fatal-warnings" |
9b552c45 | 3622 | ;; |
15ba1c5f | 3623 | powerpc*-*-*) |
3624 | conftest_s=' | |
3625 | .section ".tdata","awT",@progbits | |
3626 | .align 2 | |
3627 | ld0: .space 4 | |
3628 | ld1: .space 4 | |
3629 | x1: .space 4 | |
3630 | x2: .space 4 | |
3631 | x3: .space 4 | |
3632 | .text | |
3633 | addi 3,31,ld0@got@tlsgd | |
3634 | bl __tls_get_addr | |
3635 | addi 3,31,x1@got@tlsld | |
3636 | bl __tls_get_addr | |
3637 | addi 9,3,x1@dtprel | |
3638 | addis 9,3,x2@dtprel@ha | |
3639 | addi 9,9,x2@dtprel@l | |
3640 | lwz 9,x3@got@tprel(31) | |
3641 | add 9,9,x@tls | |
3642 | addi 9,2,x1@tprel | |
3643 | addis 9,2,x2@tprel@ha | |
3644 | addi 9,9,x2@tprel@l' | |
3645 | tls_first_major=2 | |
3646 | tls_first_minor=14 | |
3647 | tls_as_opt="-a32 --fatal-warnings" | |
3648 | ;; | |
fb55f581 | 3649 | riscv*-*-*) |
3650 | conftest_s=' | |
3651 | .section .tdata,"awT",@progbits | |
3652 | x: .word 2 | |
3653 | .text | |
3654 | la.tls.gd a0,x | |
3655 | call __tls_get_addr' | |
3656 | tls_first_major=2 | |
3657 | tls_first_minor=21 | |
3658 | tls_as_opt='--fatal-warnings' | |
3659 | ;; | |
be00aaa8 | 3660 | s390-*-*) |
3661 | conftest_s=' | |
3662 | .section ".tdata","awT",@progbits | |
3663 | foo: .long 25 | |
3664 | .text | |
3665 | .long foo@TLSGD | |
3666 | .long foo@TLSLDM | |
3667 | .long foo@DTPOFF | |
3668 | .long foo@NTPOFF | |
3669 | .long foo@GOTNTPOFF | |
3670 | .long foo@INDNTPOFF | |
3671 | l %r1,foo@GOTNTPOFF(%r12) | |
3672 | l %r1,0(%r1):tls_load:foo | |
3673 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
3674 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
3675 | tls_first_major=2 | |
3676 | tls_first_minor=14 | |
07a23b4e | 3677 | tls_as_opt="-m31 --fatal-warnings" |
be00aaa8 | 3678 | ;; |
3679 | s390x-*-*) | |
3680 | conftest_s=' | |
3681 | .section ".tdata","awT",@progbits | |
3682 | foo: .long 25 | |
3683 | .text | |
3684 | .quad foo@TLSGD | |
3685 | .quad foo@TLSLDM | |
3686 | .quad foo@DTPOFF | |
3687 | .quad foo@NTPOFF | |
3688 | .quad foo@GOTNTPOFF | |
3689 | lg %r1,foo@GOTNTPOFF(%r12) | |
3690 | larl %r1,foo@INDNTPOFF | |
3691 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
3692 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
3693 | tls_first_major=2 | |
3694 | tls_first_minor=14 | |
07a23b4e | 3695 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
be00aaa8 | 3696 | ;; |
f12debca | 3697 | sh-*-* | sh[123456789lbe]*-*-*) |
ae852eea | 3698 | conftest_s=' |
3699 | .section ".tdata","awT",@progbits | |
3700 | foo: .long 25 | |
3701 | .text | |
3702 | .long foo@TLSGD | |
3703 | .long foo@TLSLDM | |
3704 | .long foo@DTPOFF | |
3705 | .long foo@GOTTPOFF | |
3706 | .long foo@TPOFF' | |
3707 | tls_first_major=2 | |
3708 | tls_first_minor=13 | |
07a23b4e | 3709 | tls_as_opt=--fatal-warnings |
ae852eea | 3710 | ;; |
05b3a83f | 3711 | sparc*-*-*) |
07a23b4e | 3712 | case "$target" in |
3713 | sparc*-sun-solaris2.*) | |
3714 | on_solaris=yes | |
3715 | ;; | |
3716 | *) | |
3717 | on_solaris=no | |
3718 | ;; | |
3719 | esac | |
3720 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
3721 | conftest_s=' | |
eedcd8ac | 3722 | .section ".tdata",#alloc,#write,#tls' |
07a23b4e | 3723 | tls_first_major=0 |
3724 | tls_first_minor=0 | |
3725 | else | |
3726 | conftest_s=' | |
eedcd8ac | 3727 | .section ".tdata","awT",@progbits' |
3728 | tls_first_major=2 | |
3729 | tls_first_minor=14 | |
3730 | tls_as_opt="-32 --fatal-warnings" | |
3731 | fi | |
3732 | conftest_s="$conftest_s | |
05b3a83f | 3733 | foo: .long 25 |
3734 | .text | |
3735 | sethi %tgd_hi22(foo), %o0 | |
3736 | add %o0, %tgd_lo10(foo), %o1 | |
3737 | add %l7, %o1, %o0, %tgd_add(foo) | |
3738 | call __tls_get_addr, %tgd_call(foo) | |
3739 | sethi %tldm_hi22(foo), %l1 | |
3740 | add %l1, %tldm_lo10(foo), %l2 | |
3741 | add %l7, %l2, %o0, %tldm_add(foo) | |
3742 | call __tls_get_addr, %tldm_call(foo) | |
3743 | sethi %tldo_hix22(foo), %l3 | |
3744 | xor %l3, %tldo_lox10(foo), %l4 | |
3745 | add %o0, %l4, %l5, %tldo_add(foo) | |
3746 | sethi %tie_hi22(foo), %o3 | |
3747 | add %o3, %tie_lo10(foo), %o3 | |
3748 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
3749 | add %g7, %o2, %o4, %tie_add(foo) | |
3750 | sethi %tle_hix22(foo), %l1 | |
3751 | xor %l1, %tle_lox10(foo), %o5 | |
eedcd8ac | 3752 | ld [%g7 + %o5], %o1" |
05b3a83f | 3753 | ;; |
7ce78e23 | 3754 | tilepro*-*-*) |
3755 | conftest_s=' | |
3756 | .section ".tdata","awT",@progbits | |
3757 | foo: .long 25 | |
3758 | .text | |
3759 | addli r0, zero, tls_gd(foo) | |
3760 | auli r0, zero, tls_gd_ha16(foo) | |
3761 | addli r0, r0, tls_gd_lo16(foo) | |
3762 | jal __tls_get_addr | |
3763 | addli r0, zero, tls_ie(foo) | |
3764 | auli r0, r0, tls_ie_ha16(foo) | |
3765 | addli r0, r0, tls_ie_lo16(foo)' | |
3766 | tls_first_major=2 | |
3767 | tls_first_minor=22 | |
3768 | tls_as_opt="--fatal-warnings" | |
3769 | ;; | |
3770 | tilegx*-*-*) | |
3771 | conftest_s=' | |
3772 | .section ".tdata","awT",@progbits | |
3773 | foo: .long 25 | |
3774 | .text | |
3775 | shl16insli r0, zero, hw0_last_tls_gd(foo) | |
3776 | shl16insli r0, zero, hw1_last_tls_gd(foo) | |
3777 | shl16insli r0, r0, hw0_tls_gd(foo) | |
3778 | jal __tls_get_addr | |
3779 | shl16insli r0, zero, hw1_last_tls_ie(foo) | |
3780 | shl16insli r0, r0, hw0_tls_ie(foo)' | |
3781 | tls_first_major=2 | |
3782 | tls_first_minor=22 | |
3783 | tls_as_opt="--fatal-warnings" | |
3784 | ;; | |
c656b8fd | 3785 | xtensa*-*-*) |
3786 | conftest_s=' | |
3787 | .section ".tdata","awT",@progbits | |
3788 | foo: .long 25 | |
3789 | .text | |
3790 | movi a8, foo@TLSFUNC | |
3791 | movi a10, foo@TLSARG | |
3792 | callx8.tls a8, foo@TLSCALL' | |
3793 | tls_first_major=2 | |
3794 | tls_first_minor=19 | |
3795 | ;; | |
05b3a83f | 3796 | changequote([,])dnl |
2d6788fe | 3797 | esac |
c024e802 | 3798 | set_have_as_tls=no |
3799 | if test "x$enable_tls" = xno ; then | |
3800 | : # TLS explicitly disabled. | |
3801 | elif test "x$enable_tls" = xyes ; then | |
3802 | set_have_as_tls=yes # TLS explicitly enabled. | |
3803 | elif test -z "$tls_first_major"; then | |
6d6c1801 | 3804 | : # If we don't have a check, assume no support. |
3805 | else | |
3806 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
07a23b4e | 3807 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
c024e802 | 3808 | [set_have_as_tls=yes]) |
3809 | fi | |
3810 | if test $set_have_as_tls = yes ; then | |
3811 | AC_DEFINE(HAVE_AS_TLS, 1, | |
eedcd8ac | 3812 | [Define if your assembler and linker support thread-local storage.]) |
2d6788fe | 3813 | fi |
6d6c1801 | 3814 | |
3815 | # Target-specific assembler checks. | |
2d6788fe | 3816 | |
79f90e2b | 3817 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
3818 | gcc_cv_ld_static_dynamic=no | |
e6937b3a | 3819 | gcc_cv_ld_static_option='-Bstatic' |
3820 | gcc_cv_ld_dynamic_option='-Bdynamic' | |
79f90e2b | 3821 | if test $in_tree_ld = yes ; then |
1301d110 | 3822 | if test "$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 | 3823 | gcc_cv_ld_static_dynamic=yes |
3824 | fi | |
3825 | elif test x$gcc_cv_ld != x; then | |
92ff09c4 | 3826 | # Check if linker supports -Bstatic/-Bdynamic option |
f50c2ca3 | 3827 | if $gcc_cv_ld --help 2>&1 | grep -- -Bstatic > /dev/null \ |
3828 | && $gcc_cv_ld --help 2>&1 | grep -- -Bdynamic > /dev/null; then | |
92ff09c4 | 3829 | gcc_cv_ld_static_dynamic=yes |
3830 | else | |
3831 | case "$target" in | |
82163b89 | 3832 | # AIX ld uses -b flags |
3833 | *-*-aix4.[[23]]* | *-*-aix[[5-9]]*) | |
3834 | gcc_cv_ld_static_dynamic=yes | |
3835 | gcc_cv_ld_static_option="-bstatic" | |
3836 | gcc_cv_ld_dynamic_option="-bdynamic" | |
3837 | ;; | |
098bbbe5 | 3838 | # HP-UX ld uses -a flags to select between shared and archive. |
3839 | *-*-hpux*) | |
3840 | if test x"$gnu_ld" = xno; then | |
3841 | gcc_cv_ld_static_dynamic=yes | |
3842 | gcc_cv_ld_static_option="-aarchive_shared" | |
3843 | gcc_cv_ld_dynamic_option="-adefault" | |
3844 | fi | |
3845 | ;; | |
92ff09c4 | 3846 | # Solaris 2 ld always supports -Bstatic/-Bdynamic. |
3847 | *-*-solaris2*) | |
3848 | gcc_cv_ld_static_dynamic=yes | |
3849 | ;; | |
3850 | esac | |
3851 | fi | |
79f90e2b | 3852 | fi |
3853 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
3854 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
e6937b3a | 3855 | [Define if your linker supports -Bstatic/-Bdynamic or equivalent options.]) |
3856 | AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option", | |
3857 | [Define to the linker option to disable use of shared objects.]) | |
3858 | AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option", | |
3859 | [Define to the linker option to enable use of shared objects.]) | |
79f90e2b | 3860 | fi |
3861 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
3862 | ||
7176d366 | 3863 | AC_MSG_CHECKING(linker --version-script option) |
3864 | gcc_cv_ld_version_script=no | |
3865 | ld_version_script_option='' | |
3866 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3867 | gcc_cv_ld_version_script=yes | |
3868 | ld_version_script_option='--version-script' | |
3869 | elif test x$gcc_cv_ld != x; then | |
3870 | case "$target" in | |
3871 | # Solaris 2 ld always supports -M. It also supports a subset of | |
3872 | # --version-script since Solaris 11.4, but requires | |
3873 | # -z gnu-version-script-compat to activate. | |
3874 | *-*-solaris2*) | |
3875 | gcc_cv_ld_version_script=yes | |
3876 | ld_version_script_option='-M' | |
3877 | ;; | |
3878 | esac | |
3879 | fi | |
3880 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3881 | AC_MSG_RESULT($gcc_cv_ld_version_script) | |
3882 | AC_SUBST(ld_version_script_option) | |
3883 | ||
3884 | AC_MSG_CHECKING(linker soname option) | |
3885 | gcc_cv_ld_soname=no | |
3886 | if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then | |
3887 | gcc_cv_ld_soname=yes | |
3888 | ld_soname_option='-soname' | |
3889 | elif test x$gcc_cv_ld != x; then | |
3890 | case "$target" in | |
3891 | *-*-darwin*) | |
3892 | gcc_cv_ld_soname=yes | |
3893 | ld_soname_option='-install_name' | |
3894 | ;; | |
8fe7c804 | 3895 | # Solaris 2 ld always supports -h. It also supports --soname for GNU |
3896 | # ld compatiblity since some Solaris 10 update. | |
3897 | *-*-solaris2*) | |
3898 | gcc_cv_ld_soname=yes | |
3899 | ld_soname_option='-h' | |
3900 | ;; | |
7176d366 | 3901 | esac |
3902 | fi | |
3903 | # Don't AC_DEFINE result, only used in jit/Make-lang.in so far. | |
3904 | AC_MSG_RESULT($gcc_cv_ld_soname) | |
3905 | AC_SUBST(ld_soname_option) | |
3906 | ||
9c948bc2 | 3907 | if test x"$demangler_in_ld" = xyes; then |
3908 | AC_MSG_CHECKING(linker --demangle support) | |
3909 | gcc_cv_ld_demangle=no | |
3910 | if test $in_tree_ld = yes; then | |
3911 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
3912 | gcc_cv_ld_demangle=yes | |
3913 | fi | |
3914 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
3915 | # Check if the GNU linker supports --demangle option | |
f50c2ca3 | 3916 | if $gcc_cv_ld --help 2>&1 | grep no-demangle > /dev/null; then |
9c948bc2 | 3917 | gcc_cv_ld_demangle=yes |
3918 | fi | |
3919 | fi | |
3920 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
3921 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
3922 | [Define if your linker supports --demangle option.]) | |
3923 | fi | |
3924 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
3925 | fi | |
3926 | ||
de4d280b | 3927 | AC_MSG_CHECKING(linker plugin support) |
c5f741b3 | 3928 | gcc_cv_lto_plugin=0 |
98de5262 | 3929 | if test -f liblto_plugin.la; then |
1dc619a1 | 3930 | save_ld_ver="$ld_ver" |
3931 | save_ld_vers_major="$ld_vers_major" | |
3932 | save_ld_vers_minor="$ld_vers_minor" | |
3933 | save_ld_is_gold="$ld_is_gold" | |
3934 | ||
3935 | ld_is_gold=no | |
c5f741b3 | 3936 | |
1dc619a1 | 3937 | if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then |
3938 | ld_ver="GNU ld" | |
3939 | # FIXME: ld_is_gold? | |
3940 | ld_vers_major="$gcc_cv_gld_major_version" | |
3941 | ld_vers_minor="$gcc_cv_gld_minor_version" | |
3942 | else | |
3943 | # Determine plugin linker version. | |
3944 | # FIXME: Partial duplicate from above, generalize. | |
3945 | changequote(,)dnl | |
3946 | ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q` | |
3947 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
3948 | if echo "$ld_ver" | grep "GNU gold" > /dev/null; then | |
3949 | ld_is_gold=yes | |
3950 | ld_vers=`echo $ld_ver | sed -n \ | |
3951 | -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'` | |
3952 | else | |
3953 | ld_vers=`echo $ld_ver | sed -n \ | |
3954 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
3955 | fi | |
3956 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
3957 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
c5f741b3 | 3958 | fi |
1dc619a1 | 3959 | changequote([,])dnl |
3960 | fi | |
3961 | ||
3962 | # Determine plugin support. | |
3963 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
c5f741b3 | 3964 | # Require GNU ld or gold 2.21+ for plugin support by default. |
3965 | if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then | |
3966 | gcc_cv_lto_plugin=2 | |
3967 | # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20. | |
3968 | elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then | |
3969 | gcc_cv_lto_plugin=1 | |
de4d280b | 3970 | fi |
de4d280b | 3971 | fi |
1dc619a1 | 3972 | |
3973 | ld_ver="$save_ld_ver" | |
3974 | ld_vers_major="$save_ld_vers_major" | |
3975 | ld_vers_minor="$save_ld_vers_minor" | |
3976 | ld_is_gold="$save_ld_is_gold" | |
de4d280b | 3977 | fi |
c5f741b3 | 3978 | AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin, |
3979 | [Define to the level of your linker's plugin support.]) | |
de4d280b | 3980 | AC_MSG_RESULT($gcc_cv_lto_plugin) |
3981 | ||
aaa50706 | 3982 | # Target OS-specific assembler checks. |
3983 | ||
3984 | case "$target_os" in | |
3985 | darwin*) | |
3986 | gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option], | |
3987 | gcc_cv_as_mmacosx_version_min,, | |
3988 | [-mmacosx-version-min=10.1], [.text],, | |
3989 | [AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1, | |
3990 | [Define if your Mac OS X assembler supports the -mmacos-version-min option.])]) | |
3991 | ;; | |
3992 | esac | |
3993 | ||
3994 | # Target CPU-specific assembler checks. | |
3995 | ||
0d6378a9 | 3996 | case "$target" in |
891f2090 | 3997 | aarch64*-*-*) |
3998 | gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,, | |
3999 | [-mabi=lp64], [.text],,,) | |
4000 | if test x$gcc_cv_as_aarch64_mabi = xyes; then | |
4001 | AC_DEFINE(HAVE_AS_MABI_OPTION, 1, | |
4002 | [Define if your assembler supports the -mabi option.]) | |
4003 | else | |
4004 | if test x$with_abi = xilp32; then | |
4005 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4006 | Upgrade the Assembler.]) | |
4007 | fi | |
4008 | if test x"$with_multilib_list" = xdefault; then | |
4009 | TM_MULTILIB_CONFIG=lp64 | |
4010 | else | |
4011 | aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'` | |
4012 | for aarch64_multilib in ${aarch64_multilibs}; do | |
4013 | case ${aarch64_multilib} in | |
4014 | ilp32) | |
4015 | AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\ | |
4016 | Upgrade the Assembler.]) | |
4017 | ;; | |
4018 | *) | |
4019 | ;; | |
4020 | esac | |
4021 | done | |
4022 | fi | |
4023 | fi | |
d65d3062 | 4024 | # Check if we have binutils support for relocations types needed by -fpic |
4025 | gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,, | |
4026 | [ | |
4027 | .text | |
4028 | ldr x0, [[x2, #:gotpage_lo15:globalsym]] | |
4029 | ],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1, | |
4030 | [Define if your assembler supports relocs needed by -fpic.])]) | |
559dff77 | 4031 | # Enable Branch Target Identification Mechanism and Return Address |
4032 | # Signing by default. | |
4033 | AC_ARG_ENABLE(standard-branch-protection, | |
4034 | [ | |
4035 | AS_HELP_STRING([--enable-standard-branch-protection], | |
4036 | [enable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4037 | AS_HELP_STRING([--disable-standard-branch-protection], | |
4038 | [disable Branch Target Identification Mechanism and Return Address Signing by default for AArch64]) | |
4039 | ], | |
4040 | [ | |
4041 | case $enableval in | |
4042 | yes) | |
4043 | tm_defines="${tm_defines} TARGET_ENABLE_BTI=1 TARGET_ENABLE_PAC_RET=1" | |
4044 | ;; | |
4045 | no) | |
4046 | ;; | |
4047 | *) | |
4048 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-standard-branch-protection.\ | |
4049 | Valid choices are 'yes' and 'no'.]) | |
4050 | ;; | |
4051 | esac | |
4052 | ], | |
4053 | []) | |
c71e113d | 4054 | # Enable default workaround for AArch64 Cortex-A53 erratum 835769. |
4055 | AC_ARG_ENABLE(fix-cortex-a53-835769, | |
4056 | [ | |
4057 | AS_HELP_STRING([--enable-fix-cortex-a53-835769], | |
4058 | [enable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4059 | AS_HELP_STRING([--disable-fix-cortex-a53-835769], | |
4060 | [disable workaround for AArch64 Cortex-A53 erratum 835769 by default]) | |
4061 | ], | |
4062 | [ | |
4063 | case $enableval in | |
4064 | yes) | |
4065 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1" | |
4066 | ;; | |
4067 | no) | |
4068 | ;; | |
4069 | *) | |
4070 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\ | |
4071 | Valid choices are 'yes' and 'no'.]) | |
4072 | ;; | |
4073 | ||
4074 | esac | |
4075 | ], | |
4076 | []) | |
3de2f3c9 | 4077 | # Enable default workaround for AArch64 Cortex-A53 erratum 843419. |
4078 | AC_ARG_ENABLE(fix-cortex-a53-843419, | |
4079 | [ | |
4080 | AS_HELP_STRING([--enable-fix-cortex-a53-843419], | |
4081 | [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4082 | AS_HELP_STRING([--disable-fix-cortex-a53-843419], | |
4083 | [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) | |
4084 | ], | |
4085 | [ | |
4086 | case $enableval in | |
4087 | yes) | |
4088 | tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" | |
4089 | ;; | |
4090 | no) | |
4091 | ;; | |
4092 | *) | |
4093 | AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ | |
4094 | Valid choices are 'yes' and 'no'.]) | |
4095 | ;; | |
4096 | ||
4097 | esac | |
4098 | ], | |
4099 | []) | |
891f2090 | 4100 | ;; |
4101 | ||
8626dbb9 | 4102 | # All TARGET_ABI_OSF targets. |
126b6848 | 4103 | alpha*-*-linux* | alpha*-*-*bsd*) |
6d6c1801 | 4104 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
4105 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
4106 | [ .set nomacro | |
8626dbb9 | 4107 | .text |
4108 | extbl $3, $2, $3 !lituse_bytoff!1 | |
4109 | ldq $2, a($29) !literal!1 | |
4110 | ldq $4, b($29) !literal!2 | |
4111 | ldq_u $3, 0($2) !lituse_base!1 | |
4112 | ldq $27, f($29) !literal!5 | |
4113 | jsr $26, ($27), f !lituse_jsr!5 | |
4114 | ldah $29, 0($26) !gpdisp!3 | |
4115 | lda $0, c($29) !gprel | |
4116 | ldah $1, d($29) !gprelhigh | |
4117 | lda $1, d($1) !gprellow | |
6d6c1801 | 4118 | lda $29, 0($29) !gpdisp!3],, |
4119 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
4120 | [Define if your assembler supports explicit relocations.])]) | |
592222c2 | 4121 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
4122 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
4123 | [ .set nomacro | |
4124 | .text | |
4125 | ldq $27, a($29) !literal!1 | |
4126 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
4127 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
4128 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
8626dbb9 | 4129 | ;; |
4c335027 | 4130 | |
fb51f994 | 4131 | avr-*-*) |
4132 | gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,, | |
4133 | [--mlink-relax], [.text],, | |
4134 | [AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1, | |
4135 | [Define if your avr assembler supports --mlink-relax option.])]) | |
4136 | ||
4137 | gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,, | |
4138 | [-mrmw], [.text],, | |
4139 | [AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1, | |
4140 | [Define if your avr assembler supports -mrmw option.])]) | |
02bfce13 | 4141 | |
056f86e8 | 4142 | gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction], |
4143 | gcc_cv_as_avr_mgccisr,, | |
4144 | [-mgcc-isr], [.text | |
4145 | __gcc_isr 1 | |
4146 | __gcc_isr 2 | |
4147 | __gcc_isr 0,r24 | |
4148 | ],, | |
4149 | [AC_DEFINE(HAVE_AS_AVR_MGCCISR_OPTION, 1, | |
4150 | [Define if your avr assembler supports -mgcc-isr option.])]) | |
4151 | ||
02bfce13 | 4152 | # Check how default linker description file implements .rodata for |
4153 | # avrxmega3 (PR21472). avr-gcc assumes .rodata is *not* loaded to | |
4154 | # RAM so avr-gcc skips __do_copy_data for .rodata objects. | |
4155 | AC_MSG_CHECKING(binutils for avrxmega3 .rodata support) | |
4156 | cat > conftest.s <<EOF | |
4157 | .section .rodata,"a",@progbits | |
4158 | .global xxvaryy | |
4159 | ;; avr-nm should print "... R xxvaryy", not "... D xxvaryy". | |
4160 | xxvaryy: | |
4161 | .word 1 | |
4162 | EOF | |
4163 | rm -f conftest.nm | |
4164 | AC_TRY_COMMAND([$gcc_cv_as -mmcu=avrxmega3 conftest.s -o conftest.o]) | |
4165 | AC_TRY_COMMAND([$gcc_cv_ld -mavrxmega3 conftest.o -o conftest.elf]) | |
4166 | AC_TRY_COMMAND([$gcc_cv_nm conftest.elf > conftest.nm]) | |
d557a46f | 4167 | if test -s conftest.nm |
02bfce13 | 4168 | then |
4169 | if grep ' R xxvaryy' conftest.nm > /dev/null; then | |
4170 | AC_MSG_RESULT(yes) | |
d557a46f | 4171 | AC_DEFINE(HAVE_LD_AVR_AVRXMEGA3_RODATA_IN_FLASH, 1, |
4172 | [Define if your default avr linker script for avrxmega3 leaves .rodata in flash.]) | |
02bfce13 | 4173 | else |
4174 | AC_MSG_RESULT(no: avrxmega3 .rodata located in RAM) | |
4175 | echo "$as_me: nm output was" >&AS_MESSAGE_LOG_FD | |
4176 | cat conftest.nm >&AS_MESSAGE_LOG_FD | |
02bfce13 | 4177 | avr_ld_ver="`$gcc_cv_ld -v | sed -e 's:^.* ::'`" |
d557a46f | 4178 | AC_MSG_WARN([[support for avrxmega3 .rodata in flash needs Binutils 2.29 or higher (have $avr_ld_ver)]]) |
02bfce13 | 4179 | fi |
4180 | else | |
4181 | AC_MSG_RESULT(test failed) | |
4182 | echo "$as_me: failed program was" >&AS_MESSAGE_LOG_FD | |
4183 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
d557a46f | 4184 | AC_MSG_WARN([[see `config.log' for details]]) |
02bfce13 | 4185 | fi |
d557a46f | 4186 | rm -f conftest.s conftest.o conftest.elf conftest.nm |
fb51f994 | 4187 | ;; |
4188 | ||
ce4d6134 | 4189 | cris-*-*) |
4190 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
4191 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
4192 | [-no-mul-bug-abort], [.text],, | |
4193 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
4194 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
4195 | ;; | |
4196 | ||
6d6c1801 | 4197 | sparc*-*-*) |
6d6c1801 | 4198 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, |
4199 | [-relax], [.text],, | |
4200 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
4201 | [Define if your assembler supports -relax option.])]) | |
4202 | ||
2f1e7d0b | 4203 | gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs], |
4204 | gcc_cv_as_sparc_gotdata_op,, | |
4205 | [-K PIC], | |
4206 | [.text | |
d958c180 | 4207 | .align 4 |
2f1e7d0b | 4208 | foo: |
4209 | nop | |
4210 | bar: | |
4211 | sethi %gdop_hix22(foo), %g1 | |
4212 | xor %g1, %gdop_lox10(foo), %g1 | |
4213 | ld [[%l7 + %g1]], %g2, %gdop(foo)], | |
4214 | [if test x$gcc_cv_ld != x \ | |
dd84455f | 4215 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then |
dc360156 | 4216 | if test x$gcc_cv_objdump != x; then |
4217 | if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \ | |
4218 | | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then | |
dd84455f | 4219 | gcc_cv_as_sparc_gotdata_op=no |
dc360156 | 4220 | else |
dd84455f | 4221 | gcc_cv_as_sparc_gotdata_op=yes |
dd84455f | 4222 | fi |
dd84455f | 4223 | fi |
2f1e7d0b | 4224 | fi |
4225 | rm -f conftest], | |
4226 | [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1, | |
4227 | [Define if your assembler and linker support GOTDATA_OP relocs.])]) | |
4228 | ||
6d6c1801 | 4229 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], |
4230 | gcc_cv_as_sparc_ua_pcrel,, | |
4231 | [-K PIC], | |
4232 | [.text | |
4233 | foo: | |
4234 | nop | |
4235 | .data | |
4236 | .align 4 | |
4237 | .byte 0 | |
4238 | .uaword %r_disp32(foo)], | |
4239 | [if test x$gcc_cv_ld != x \ | |
4240 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
4241 | gcc_cv_as_sparc_ua_pcrel=yes | |
4242 | fi | |
4243 | rm -f conftest], | |
4244 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
66e333b1 | 4245 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
e715c863 | 4246 | |
6d6c1801 | 4247 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
4248 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
4249 | [-K PIC], | |
4250 | [.data | |
4251 | .align 4 | |
4252 | .byte 0x31 | |
4253 | .uaword %r_disp32(foo) | |
4254 | .byte 0x32, 0x33, 0x34 | |
4255 | .global foo | |
4256 | .hidden foo | |
4257 | foo: | |
4258 | .skip 4], | |
4259 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4260 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
4261 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
4262 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
4263 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
4264 | | grep 'DISP32' > /dev/null 2>&1; then | |
4265 | : | |
5a49bf3e | 4266 | else |
6d6c1801 | 4267 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
0569c094 | 4268 | fi |
6d6c1801 | 4269 | fi |
4270 | rm -f conftest], | |
4271 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
4272 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
4273 | ]) # unaligned pcrel relocs | |
4274 | ||
4275 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
4276 | gcc_cv_as_sparc_offsetable_lo10,, | |
4277 | [-xarch=v9], | |
4278 | [.text | |
4279 | or %g1, %lo(ab) + 12, %g1 | |
4280 | or %g1, %lo(ab + 12), %g1], | |
4281 | [if test x$gcc_cv_objdump != x \ | |
7908b1a1 | 4282 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
6d6c1801 | 4283 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
19f7ae9a | 4284 | gcc_cv_as_sparc_offsetable_lo10=yes |
6d6c1801 | 4285 | fi], |
4286 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
4287 | [Define if your assembler supports offsetable %lo().])]) | |
0468cf8f | 4288 | |
4289 | gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions], | |
4290 | gcc_cv_as_sparc_fmaf,, | |
4291 | [-xarch=v9d], | |
4292 | [.text | |
d7112989 | 4293 | .register %g2, #scratch |
4294 | .register %g3, #scratch | |
0468cf8f | 4295 | .align 4 |
4296 | fmaddd %f0, %f2, %f4, %f6 | |
4297 | addxccc %g1, %g2, %g3 | |
4298 | fsrl32 %f2, %f4, %f8 | |
4299 | fnaddd %f10, %f12, %f14],, | |
4300 | [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1, | |
4301 | [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])]) | |
6c940e8d | 4302 | |
4303 | gcc_GAS_CHECK_FEATURE([SPARC4 instructions], | |
4304 | gcc_cv_as_sparc_sparc4,, | |
4305 | [-xarch=sparc4], | |
4306 | [.text | |
4307 | .register %g2, #scratch | |
4308 | .register %g3, #scratch | |
4309 | .align 4 | |
4310 | cxbe %g2, %g3, 1f | |
4311 | 1: cwbneg %g2, %g3, 1f | |
4312 | 1: sha1 | |
4313 | md5 | |
4314 | aes_kexpand0 %f4, %f6, %f8 | |
4315 | des_round %f38, %f40, %f42, %f44 | |
4316 | camellia_f %f54, %f56, %f58, %f60 | |
4317 | kasumi_fi_xor %f46, %f48, %f50, %f52],, | |
4318 | [AC_DEFINE(HAVE_AS_SPARC4, 1, | |
4319 | [Define if your assembler supports SPARC4 instructions.])]) | |
cbd3655d | 4320 | |
7e1786b2 | 4321 | gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions], |
4322 | gcc_cv_as_sparc_sparc5,, | |
4323 | [-xarch=sparc5], | |
4324 | [.text | |
4325 | .register %g2, #scratch | |
4326 | .register %g3, #scratch | |
4327 | .align 4 | |
4328 | subxc %g1, %g2, %g3 | |
4329 | fpadd8 %f0, %f2, %f4],, | |
4330 | [AC_DEFINE(HAVE_AS_SPARC5_VIS4, 1, | |
4331 | [Define if your assembler supports SPARC5 and VIS 4.0 instructions.])]) | |
4332 | ||
95f09db7 | 4333 | gcc_GAS_CHECK_FEATURE([SPARC6 instructions], |
4334 | gcc_cv_as_sparc_sparc6,, | |
4335 | [-xarch=sparc6], | |
4336 | [.text | |
4337 | .register %g2, #scratch | |
4338 | .register %g3, #scratch | |
4339 | .align 4 | |
4340 | rd %entropy, %g1 | |
4341 | fpsll64x %f0, %f2, %f4],, | |
4342 | [AC_DEFINE(HAVE_AS_SPARC6, 1, | |
4343 | [Define if your assembler supports SPARC6 instructions.])]) | |
4344 | ||
cbd3655d | 4345 | gcc_GAS_CHECK_FEATURE([LEON instructions], |
4346 | gcc_cv_as_sparc_leon,, | |
4347 | [-Aleon], | |
4348 | [.text | |
4349 | .register %g2, #scratch | |
4350 | .register %g3, #scratch | |
4351 | .align 4 | |
4352 | smac %g2, %g3, %g1 | |
4353 | umac %g2, %g3, %g1 | |
51494e08 | 4354 | casa [[%g2]] 0xb, %g3, %g1],, |
cbd3655d | 4355 | [AC_DEFINE(HAVE_AS_LEON, 1, |
4356 | [Define if your assembler supports LEON instructions.])]) | |
d300bd48 | 4357 | ;; |
4358 | ||
4359 | changequote(,)dnl | |
96b9fbc1 | 4360 | i[34567]86-*-* | x86_64-*-*) |
d300bd48 | 4361 | changequote([,])dnl |
dd9d9ac2 | 4362 | case $target_os in |
4363 | cygwin*) | |
4364 | # Full C++ conformance when using a shared libstdc++-v3 requires some | |
4365 | # support from the Cygwin DLL, which in more recent versions exports | |
4366 | # wrappers to aid in interposing and redirecting operators new, delete, | |
4367 | # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we | |
4368 | # are configuring for a version of Cygwin that exports the wrappers. | |
8f3115a2 | 4369 | if test x$host = x$target && test x$host_cpu = xi686; then |
dd9d9ac2 | 4370 | AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) |
4371 | else | |
4372 | # Can't check presence of libc functions during cross-compile, so | |
4373 | # we just have to assume we're building for an up-to-date target. | |
4374 | gcc_ac_cygwin_dll_wrappers=yes | |
4375 | fi | |
4376 | AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, | |
4377 | [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], | |
4378 | [Define if you want to generate code by default that assumes that the | |
4379 | Cygwin DLL exports wrappers to support libstdc++ function replacement.]) | |
4380 | esac | |
1f10d387 | 4381 | case $target_os in |
6905db52 | 4382 | cygwin* | pe | mingw32*) |
7b897de3 | 4383 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
4384 | # definition is used unconditionally to initialise the default state of | |
4385 | # the target option variable that governs usage of the feature. | |
4386 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
4387 | [2,19,52],,[.comm foo,1,32]) | |
4388 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
4389 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
4390 | [Define if your assembler supports specifying the alignment | |
4391 | of objects allocated using the GAS .comm command.]) | |
1f10d387 | 4392 | # Used for DWARF 2 in PE |
4393 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
4394 | gcc_cv_as_ix86_pe_secrel32, | |
4395 | [2,15,91],, | |
4396 | [.text | |
4397 | foo: nop | |
4398 | .data | |
4399 | .secrel32 foo], | |
4400 | [if test x$gcc_cv_ld != x \ | |
4401 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
4402 | gcc_cv_as_ix86_pe_secrel32=yes | |
4403 | fi | |
4404 | rm -f conftest], | |
4405 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
4406 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
4d992eb6 | 4407 | # Test if the assembler supports the extended form of the .section |
4408 | # directive that specifies section alignment. LTO support uses this, | |
4409 | # but normally only after installation, so we warn but don't fail the | |
4410 | # configure if LTO is enabled but the assembler does not support it. | |
4411 | gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align, | |
4412 | [2,20,1],-fatal-warnings,[.section lto_test,"dr0"]) | |
4413 | if test x$gcc_cv_as_section_has_align != xyes; then | |
4414 | case ",$enable_languages," in | |
4415 | *,lto,*) | |
4416 | AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.]) | |
4417 | ;; | |
4418 | esac | |
4419 | fi | |
1f10d387 | 4420 | ;; |
4421 | esac | |
4422 | ||
9bc1196f | 4423 | gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,, |
4424 | [-xbrace_comment=no], [.text],, | |
4425 | [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1, | |
4426 | [Define if your assembler supports -xbrace_comment option.])]) | |
4427 | ||
6d6c1801 | 4428 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
6cc62ffa | 4429 | gcc_cv_as_ix86_filds,,, |
b3f7a353 | 4430 | [filds (%ebp); fists (%ebp)],, |
6cc62ffa | 4431 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, |
4432 | [Define if your assembler uses filds and fists mnemonics.])]) | |
4433 | ||
4434 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
4435 | gcc_cv_as_ix86_fildq,,, | |
b3f7a353 | 4436 | [fildq (%ebp); fistpq (%ebp)],, |
6cc62ffa | 4437 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, |
4438 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
6d6c1801 | 4439 | |
65cce9df | 4440 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
4441 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
4442 | [cmovl.l %edx, %eax],, | |
4443 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
4444 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
4445 | ||
97f2677a | 4446 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
4447 | gcc_cv_as_ix86_ffreep,,, | |
4448 | [ffreep %st(1)],, | |
4449 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
4450 | [Define if your assembler supports the ffreep mnemonic.])]) | |
4451 | ||
05157f42 | 4452 | gcc_GAS_CHECK_FEATURE([.quad directive], |
4453 | gcc_cv_as_ix86_quad,,, | |
4454 | [.quad 0],, | |
4455 | [AC_DEFINE(HAVE_AS_IX86_QUAD, 1, | |
4456 | [Define if your assembler supports the .quad directive.])]) | |
4457 | ||
735630ef | 4458 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
4459 | gcc_cv_as_ix86_sahf,,, | |
5a079549 | 4460 | [.code64 |
4461 | sahf],, | |
735630ef | 4462 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, |
5a079549 | 4463 | [Define if your assembler supports the sahf mnemonic in 64bit mode.])]) |
735630ef | 4464 | |
9e2820ab | 4465 | gcc_GAS_CHECK_FEATURE([interunit movq mnemonic], |
4466 | gcc_cv_as_ix86_interunit_movq,,, | |
4467 | [.code64 | |
4468 | movq %mm0, %rax | |
f17a6c34 | 4469 | movq %rax, %xmm0]) |
4470 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ, | |
4471 | [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`], | |
4472 | [Define if your assembler supports interunit movq mnemonic.]) | |
9e2820ab | 4473 | |
7f738025 | 4474 | gcc_GAS_CHECK_FEATURE([hle prefixes], |
4475 | gcc_cv_as_ix86_hle,,, | |
92ff811e | 4476 | [lock xacquire cmpxchg %esi, (%ecx)],, |
7f738025 | 4477 | [AC_DEFINE(HAVE_AS_IX86_HLE, 1, |
4478 | [Define if your assembler supports HLE prefixes.])]) | |
4479 | ||
5a5324bc | 4480 | gcc_GAS_CHECK_FEATURE([swap suffix], |
4481 | gcc_cv_as_ix86_swap,,, | |
4482 | [movl.s %esp, %ebp],, | |
4483 | [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, | |
4484 | [Define if your assembler supports the swap suffix.])]) | |
4485 | ||
95792072 | 4486 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
4487 | gcc_cv_as_ix86_diff_sect_delta,,, | |
4488 | [.section .rodata | |
4489 | .L1: | |
4490 | .long .L2-.L1 | |
4491 | .long .L3-.L1 | |
4492 | .text | |
4493 | .L3: nop | |
4494 | .L2: nop],, | |
4495 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
4496 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
4497 | ||
fa1a7502 | 4498 | gcc_GAS_CHECK_FEATURE([rep and lock prefix], |
4499 | gcc_cv_as_ix86_rep_lock_prefix,,, | |
4500 | [rep movsl | |
948e3eac | 4501 | rep ret |
4502 | rep nop | |
4503 | rep bsf %ecx, %eax | |
4504 | rep bsr %ecx, %eax | |
44ddfc4c | 4505 | lock addl %edi, (%eax,%esi) |
66d2fcdf | 4506 | lock orl $0, (%esp)],, |
4507 | [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1, | |
4508 | [Define if the assembler supports 'rep <insn>, lock <insn>'.])]) | |
fa1a7502 | 4509 | |
e786f3a4 | 4510 | gcc_GAS_CHECK_FEATURE([ud2 mnemonic], |
4511 | gcc_cv_as_ix86_ud2,,, | |
4512 | [ud2],, | |
4513 | [AC_DEFINE(HAVE_AS_IX86_UD2, 1, | |
4514 | [Define if your assembler supports the 'ud2' mnemonic.])]) | |
4515 | ||
a55c79f0 | 4516 | # Enforce 32-bit output with gas and gld. |
4517 | if test x$gas = xyes; then | |
4518 | as_ix86_gas_32_opt="--32" | |
4519 | fi | |
4520 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
4521 | if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then | |
4522 | ld_ix86_gld_32_opt="-melf_i386_sol2" | |
4523 | else | |
4524 | ld_ix86_gld_32_opt="-melf_i386" | |
4525 | fi | |
4526 | fi | |
4527 | ||
04a4c50e | 4528 | gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc], |
a55c79f0 | 4529 | gcc_cv_as_ix86_tlsgdplt,, |
4530 | [$as_ix86_gas_32_opt], | |
31d2f7ca | 4531 | [call tls_gd@tlsgdplt], |
4532 | [if test x$gcc_cv_ld != x \ | |
a55c79f0 | 4533 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
31d2f7ca | 4534 | gcc_cv_as_ix86_tlsgdplt=yes |
4535 | fi | |
4536 | rm -f conftest], | |
04a4c50e | 4537 | [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1, |
31d2f7ca | 4538 | [Define if your assembler and linker support @tlsgdplt.])]) |
04a4c50e | 4539 | |
fcc29059 | 4540 | conftest_s=' |
4541 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4542 | tls_ld: | |
4543 | .section .text,"ax",@progbits | |
4544 | call tls_ld@tlsldmplt' | |
a55c79f0 | 4545 | |
04a4c50e | 4546 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc], |
a55c79f0 | 4547 | gcc_cv_as_ix86_tlsldmplt,, |
4548 | [$as_ix86_gas_32_opt], | |
fcc29059 | 4549 | [$conftest_s], |
31d2f7ca | 4550 | [if test x$gcc_cv_ld != x \ |
a55c79f0 | 4551 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then |
31d2f7ca | 4552 | gcc_cv_as_ix86_tlsldmplt=yes |
4553 | fi | |
e727a9cd | 4554 | rm -f conftest]) |
4555 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT, | |
4556 | [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`], | |
4557 | [Define to 1 if your assembler and linker support @tlsldmplt.]) | |
4558 | ||
e727a9cd | 4559 | conftest_s=' |
4560 | .section .text,"ax",@progbits | |
4561 | .globl _start | |
4562 | .type _start, @function | |
4563 | _start: | |
4564 | leal value@tlsldm(%ebx), %eax | |
4565 | call ___tls_get_addr@plt | |
4566 | ||
4567 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4568 | .type value, @object | |
4569 | value:' | |
4570 | gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc], | |
4571 | gcc_cv_as_ix86_tlsldm,, | |
eaf77c2b | 4572 | [$as_ix86_gas_32_opt], |
e727a9cd | 4573 | [$conftest_s], |
4574 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
eaf77c2b | 4575 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then |
e727a9cd | 4576 | if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \ |
4577 | || dis conftest 2>/dev/null | grep nop > /dev/null; then | |
4578 | gcc_cv_as_ix86_tlsldm=yes | |
4579 | fi | |
4580 | fi | |
4581 | rm -f conftest]) | |
4582 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM, | |
4583 | [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`], | |
4584 | [Define to 1 if your assembler and linker support @tlsldm.]) | |
04a4c50e | 4585 | |
6fb2f181 | 4586 | conftest_s=' |
4587 | .data | |
4588 | bar: | |
4589 | .byte 1 | |
4590 | .text | |
4591 | .global _start | |
4592 | _start: | |
4593 | cmpl $0, bar@GOT | |
4594 | jmp *_start@GOT' | |
4595 | gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc], | |
4596 | gcc_cv_as_ix86_got32x,, | |
eaf77c2b | 4597 | [$as_ix86_gas_32_opt], |
6fb2f181 | 4598 | [$conftest_s], |
4599 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
4600 | && test x$gcc_cv_readelf != x \ | |
4601 | && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \ | |
4602 | | grep R_386_GOT32X > /dev/null 2>&1 \ | |
eaf77c2b | 4603 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then |
6fb2f181 | 4604 | if $gcc_cv_objdump -dw conftest 2>&1 \ |
4605 | | grep 0xffffff > /dev/null 2>&1; then | |
4606 | gcc_cv_as_ix86_got32x=no | |
4607 | else | |
4608 | gcc_cv_as_ix86_got32x=yes | |
4609 | fi | |
4610 | fi | |
4611 | rm -f conftest]) | |
4612 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_GOT32X, | |
4613 | [`if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`], | |
4614 | [Define 0/1 if your assembler and linker support @GOT.]) | |
a55c79f0 | 4615 | |
4616 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
4617 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0], | |
4618 | [$as_ix86_gas_32_opt], | |
4619 | [ .text | |
4620 | .L0: | |
4621 | nop | |
4622 | .data | |
4623 | .long .L0@GOTOFF]) | |
4624 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
4625 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
4626 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
4627 | ||
c7f16cfa | 4628 | conftest_s=' |
4629 | .section .text,"ax",@progbits | |
4630 | .globl _start | |
4631 | .type _start, @function | |
4632 | _start: | |
4633 | leal ld@tlsldm(%ecx), %eax | |
4634 | call *___tls_get_addr@GOT(%ecx) | |
4635 | leal gd@tlsgd(%ecx), %eax | |
4636 | call *___tls_get_addr@GOT(%ecx) | |
4637 | ||
4638 | .section .tdata,"aw'$tls_section_flag'",@progbits | |
4639 | .type ld, @object | |
4640 | ld: | |
4641 | .byte 0 | |
4642 | .globl gd | |
4643 | .type gd, @object | |
4644 | gd: | |
4645 | .byte 0' | |
4646 | gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT], | |
4647 | gcc_cv_as_ix86_tls_get_addr_via_got,, | |
4648 | [$as_ix86_gas_32_opt], | |
4649 | [$conftest_s], | |
4650 | [if test x$gcc_cv_ld != x \ | |
4651 | && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then | |
4652 | gcc_cv_as_ix86_tls_get_addr_via_got=yes | |
4653 | fi | |
4654 | rm -f conftest]) | |
4655 | AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLS_GET_ADDR_GOT, | |
4656 | [`if test x"$gcc_cv_as_ix86_tls_get_addr_via_got" = xyes; then echo 1; else echo 0; fi`], | |
4657 | [Define 0/1 if your assembler and linker support calling ___tls_get_addr via GOT.]) | |
d300bd48 | 4658 | ;; |
0cc4b4a2 | 4659 | |
4660 | ia64*-*-*) | |
6d6c1801 | 4661 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
4662 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
13f3d840 | 4663 | [ .text |
0cc4b4a2 | 4664 | addl r15 = @ltoffx(x#), gp |
4665 | ;; | |
c49718af | 4666 | ld8.mov r16 = [[r15]], x# |
4667 | ],, | |
6d6c1801 | 4668 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
4669 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
4670 | ||
0cc4b4a2 | 4671 | ;; |
6d6c1801 | 4672 | |
24880e5b | 4673 | powerpc*-*-*) |
2f6cdf65 | 4674 | |
6d6c1801 | 4675 | case $target in |
cd0c3d24 | 4676 | *-*-darwin*) |
4677 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
4678 | gcc_cv_as_machine_directive,,, | |
4679 | [ .machine ppc7400]) | |
4680 | if test x$gcc_cv_as_machine_directive != xyes; then | |
4681 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
4682 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
4683 | test x$build = x$target && exit 1 | |
4684 | fi | |
2f6cdf65 | 4685 | ;; |
4686 | esac | |
4687 | ||
4688 | case $target in | |
4689 | *-*-aix*) conftest_s=' .machine "pwr5" | |
4690 | .csect .text[[PR]] | |
4691 | mfcr 3,128';; | |
4692 | *-*-darwin*) conftest_s=' .text | |
3ba829c3 | 4693 | mfcr r3,128';; |
ce1a729a | 4694 | *) conftest_s=' .machine power4 |
4adb2d8e | 4695 | .text |
3ba829c3 | 4696 | mfcr 3,128';; |
6d6c1801 | 4697 | esac |
6d6c1801 | 4698 | |
4699 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
4700 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
4701 | [$conftest_s],, | |
4702 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
4703 | [Define if your assembler supports mfcr field.])]) | |
a8bb341c | 4704 | |
197f58fa | 4705 | case $target in |
4706 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
4707 | LCF..0: | |
4708 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
4709 | *-*-darwin*) | |
4710 | conftest_s=' .text | |
4711 | LCF0: | |
4712 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
4713 | *) conftest_s=' .text | |
4714 | .LCF0: | |
4715 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
4716 | esac | |
4717 | ||
34fe62ca | 4718 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
4719 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
4720 | [$conftest_s],, | |
4721 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
4722 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
4723 | ||
94f7a54b | 4724 | case $target in |
4725 | *-*-aix*) conftest_s=' .machine "pwr7" | |
4726 | .csect .text[[PR]] | |
4727 | lxvd2x 1,2,3';; | |
4728 | *) conftest_s=' .machine power7 | |
4729 | .text | |
4730 | lxvd2x 1,2,3';; | |
4731 | esac | |
4732 | ||
4733 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
9c878e1b | 4734 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
94f7a54b | 4735 | [$conftest_s],, |
4736 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
4737 | [Define if your assembler supports VSX instructions.])]) | |
4738 | ||
6c7d78e4 | 4739 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
4740 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
4741 | [.gnu_attribute 4,1],, | |
4742 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4743 | [Define if your assembler supports .gnu_attribute.])]) | |
d46ea878 | 4744 | |
4745 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
4746 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
4747 | [ bl __tls_get_addr(x@tlsgd)],, | |
4748 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
4749 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
1a9c54a3 | 4750 | |
4dcc3863 | 4751 | gcc_GAS_CHECK_FEATURE([prologue entry point marker support], |
4752 | gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings, | |
4753 | [ .reloc .,R_PPC64_ENTRY; nop],, | |
4754 | [AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1, | |
4755 | [Define if your assembler supports the R_PPC64_ENTRY relocation.])]) | |
4756 | ||
5969e425 | 4757 | gcc_GAS_CHECK_FEATURE([plt sequence marker support], |
4758 | gcc_cv_as_powerpc_pltseq_markers, [2,31,0],-a32 --fatal-warnings, | |
4759 | [ .reloc .,R_PPC_PLTSEQ; nop],, | |
4760 | [AC_DEFINE(HAVE_AS_PLTSEQ, 1, | |
4761 | [Define if your assembler supports R_PPC*_PLTSEQ relocations.])]) | |
4762 | ||
1a9c54a3 | 4763 | case $target in |
4764 | *-*-aix*) | |
36302ce3 | 4765 | gcc_GAS_CHECK_FEATURE([AIX .ref support], |
e2f5cc8a | 4766 | gcc_cv_as_aix_ref, [2,21,0],, |
1a9c54a3 | 4767 | [ .csect stuff[[rw]] |
4768 | stuff: | |
4769 | .long 1 | |
4770 | .extern sym | |
4771 | .ref sym | |
4772 | ],, | |
4773 | [AC_DEFINE(HAVE_AS_REF, 1, | |
4774 | [Define if your assembler supports .ref])]) | |
d6723bcd | 4775 | |
36302ce3 | 4776 | gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support], |
67429b36 | 4777 | gcc_cv_as_aix_dwloc, [2,21,0],, |
36302ce3 | 4778 | [ .dwsect 0xA0000 |
4779 | Lframe..0: | |
d6cef2f9 | 4780 | .vbyte 4,Lframe..0 |
67429b36 | 4781 | ],, |
4782 | [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1, | |
36302ce3 | 4783 | [Define if your assembler supports AIX debug frame section label reference.])]) |
67429b36 | 4784 | ;; |
4785 | esac | |
4786 | ;; | |
4787 | ||
6d6c1801 | 4788 | mips*-*-*) |
4789 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
4790 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
4791 | [ lw $4,%gp_rel(foo)($4)],, | |
4792 | [if test x$target_cpu_default = x | |
4793 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
4794 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
4795 | fi]) | |
67429b36 | 4796 | |
f863d3e3 | 4797 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
4798 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
4799 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
4800 | [Define if the assembler understands -mno-shared.])]) | |
0fd6d684 | 4801 | |
4802 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4803 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
4804 | [.gnu_attribute 4,1],, | |
4805 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4806 | [Define if your assembler supports .gnu_attribute.])]) | |
c9eabb6d | 4807 | |
f2b55aea | 4808 | gcc_GAS_CHECK_FEATURE([.module support], |
d745b466 | 4809 | gcc_cv_as_mips_dot_module,,[-32], |
4810 | [.module mips2 | |
4811 | .module fp=xx],, | |
f2b55aea | 4812 | [AC_DEFINE(HAVE_AS_DOT_MODULE, 1, |
4813 | [Define if your assembler supports .module.])]) | |
4814 | if test x$gcc_cv_as_mips_dot_module = xno \ | |
4815 | && test x$with_fp_32 != x; then | |
4816 | AC_MSG_ERROR( | |
4817 | [Requesting --with-fp-32= requires assembler support for .module.]) | |
4818 | fi | |
4819 | ||
ff9c1bc1 | 4820 | gcc_GAS_CHECK_FEATURE([.micromips support], |
bcba791d | 4821 | gcc_cv_as_micromips_support,,[--fatal-warnings], |
ff9c1bc1 | 4822 | [.set micromips],, |
4823 | [AC_DEFINE(HAVE_GAS_MICROMIPS, 1, | |
4824 | [Define if your assembler supports the .set micromips directive])]) | |
4825 | ||
c9eabb6d | 4826 | gcc_GAS_CHECK_FEATURE([.dtprelword support], |
4827 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
4828 | [.section .tdata,"awT",@progbits | |
4829 | x: | |
4830 | .word 2 | |
4831 | .text | |
4832 | .dtprelword x+0x8000],, | |
4833 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
4834 | [Define if your assembler supports .dtprelword.])]) | |
ca30e0b9 | 4835 | |
3e60fdb7 | 4836 | gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support], |
4837 | gcc_cv_as_mips_dspr1_mult,,, | |
4838 | [ .set mips32r2 | |
4839 | .set nodspr2 | |
4840 | .set dsp | |
4841 | madd $ac3,$4,$5 | |
4842 | maddu $ac3,$4,$5 | |
4843 | msub $ac3,$4,$5 | |
4844 | msubu $ac3,$4,$5 | |
4845 | mult $ac3,$4,$5 | |
4846 | multu $ac3,$4,$5],, | |
4847 | [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1, | |
4848 | [Define if your assembler supports DSPR1 mult.])]) | |
4849 | ||
ca30e0b9 | 4850 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) |
4851 | gcc_cv_as_ld_jalr_reloc=no | |
4852 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
4853 | if test $in_tree_ld = yes ; then | |
4854 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
4855 | && test $in_tree_ld_is_elf = yes; then | |
4856 | gcc_cv_as_ld_jalr_reloc=yes | |
4857 | fi | |
4858 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
4859 | echo ' .ent x' > conftest.s | |
aab5ced3 | 4860 | echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s |
4861 | echo ' lw $25,%call16(y)($28)' >> conftest.s | |
ca30e0b9 | 4862 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s |
4863 | echo '1: jalr $25' >> conftest.s | |
4864 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
4865 | echo '1: jalr $25' >> conftest.s | |
4866 | echo ' .end x' >> conftest.s | |
4867 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
4868 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
b1383b01 | 4869 | if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \ |
4870 | && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then | |
ca30e0b9 | 4871 | gcc_cv_as_ld_jalr_reloc=yes |
4872 | fi | |
4873 | fi | |
4874 | rm -f conftest.* | |
4875 | fi | |
4876 | fi | |
4877 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
4878 | if test x$target_cpu_default = x; then | |
4879 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
4880 | else | |
4881 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
4882 | fi | |
4883 | fi | |
4884 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
c4cf26ad | 4885 | |
4886 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
4887 | [gcc_cv_ld_mips_personality_relaxation], | |
4888 | [gcc_cv_ld_mips_personality_relaxation=no | |
4889 | if test $in_tree_ld = yes ; then | |
4890 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
4891 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
4892 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
4893 | gcc_cv_ld_mips_personality_relaxation=yes | |
4894 | fi | |
4895 | elif test x$gcc_cv_as != x \ | |
4896 | -a x$gcc_cv_ld != x \ | |
4897 | -a x$gcc_cv_readelf != x ; then | |
4898 | cat > conftest.s <<EOF | |
4899 | .cfi_startproc | |
4900 | .cfi_personality 0x80,indirect_ptr | |
4901 | .ent test | |
4902 | test: | |
4903 | nop | |
4904 | .end test | |
4905 | .cfi_endproc | |
4906 | ||
4907 | .section .data,"aw",@progbits | |
4908 | indirect_ptr: | |
4909 | .dc.a personality | |
4910 | EOF | |
4911 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
4912 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
4913 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
4914 | | grep TEXTREL > /dev/null 2>&1; then | |
4915 | : | |
4916 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
4917 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
4918 | : | |
4919 | else | |
4920 | gcc_cv_ld_mips_personality_relaxation=yes | |
4921 | fi | |
4922 | fi | |
4923 | fi | |
4924 | rm -f conftest.s conftest.o conftest]) | |
4925 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
4926 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
4927 | [Define if your linker can relax absolute .eh_frame personality | |
4928 | pointers into PC-relative form.]) | |
4929 | fi | |
0bd32132 | 4930 | |
4931 | gcc_GAS_CHECK_FEATURE([-mnan= support], | |
4932 | gcc_cv_as_mips_nan,, | |
4933 | [-mnan=2008],,, | |
4934 | [AC_DEFINE(HAVE_AS_NAN, 1, | |
4935 | [Define if the assembler understands -mnan=.])]) | |
4936 | if test x$gcc_cv_as_mips_nan = xno \ | |
4937 | && test x$with_nan != x; then | |
4938 | AC_MSG_ERROR( | |
4939 | [Requesting --with-nan= requires assembler support for -mnan=]) | |
4940 | fi | |
c8aeaa6d | 4941 | ;; |
93b27baa | 4942 | riscv*-*-*) |
4943 | gcc_GAS_CHECK_FEATURE([.attribute support], | |
4944 | gcc_cv_as_riscv_attribute, [2,32,0],, | |
4945 | [.attribute stack_align,4],, | |
4946 | [AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1, | |
4947 | [Define if your assembler supports .attribute.])]) | |
4948 | ;; | |
6b7cfb9c | 4949 | s390*-*-*) |
4950 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
4951 | gcc_cv_as_s390_gnu_attribute, [2,18,0],, | |
4952 | [.gnu_attribute 8,1],, | |
4953 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
4954 | [Define if your assembler supports .gnu_attribute.])]) | |
7a0cee35 | 4955 | gcc_GAS_CHECK_FEATURE([.machine and .machinemode support], |
4956 | gcc_cv_as_s390_machine_machinemode, [2,24,0],, | |
4957 | [ .machinemode push | |
4958 | .machinemode pop | |
4959 | .machine push | |
4960 | .machine pop],, | |
4961 | [AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1, | |
4962 | [Define if your assembler supports .machine and .machinemode.])]) | |
4963 | gcc_GAS_CHECK_FEATURE([architecture modifiers support], | |
4964 | gcc_cv_as_s390_architecture_modifiers, [2,26,0],, | |
4965 | [ .machine z13+vx ],, | |
4966 | [AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1, | |
4967 | [Define if your assembler supports architecture modifiers.])]) | |
f0075e6e | 4968 | gcc_GAS_CHECK_FEATURE([vector load/store alignment hints], |
4969 | gcc_cv_as_s390_vector_loadstore_alignment_hints, [2,31,0],, | |
4970 | [ vl %v24,0(%r15),3 ],, | |
4971 | [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS, 1, | |
4972 | [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument.])]) | |
4973 | ||
6b7cfb9c | 4974 | ;; |
c8aeaa6d | 4975 | esac |
4976 | ||
4977 | # Mips and HP-UX need the GNU assembler. | |
4978 | # Linux on IA64 might be able to use the Intel assembler. | |
6d6c1801 | 4979 | |
c8aeaa6d | 4980 | case "$target" in |
4981 | mips*-*-* | *-*-hpux* ) | |
6e930e6c | 4982 | if test x$gas_flag = xyes \ |
4983 | || test x"$host" != x"$build" \ | |
4984 | || test ! -x "$gcc_cv_as" \ | |
4985 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
4986 | : | |
4987 | else | |
4988 | echo "*** This configuration requires the GNU assembler" >&2 | |
4989 | exit 1 | |
4990 | fi | |
6d6c1801 | 4991 | ;; |
4992 | esac | |
c8aeaa6d | 4993 | |
142cf471 | 4994 | # ??? Not all targets support dwarf2 debug_line, even within a version |
4995 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
4996 | # info to the output file. So, as supported targets are added to gas 2.11, | |
4997 | # add some instruction here to (also) show we expect this might work. | |
4998 | # ??? Once 2.11 is released, probably need to add first known working | |
4999 | # version to the per-target configury. | |
5b80c8e4 | 5000 | case "$cpu_type" in |
9399b971 | 5001 | aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \ |
d71996db | 5002 | | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu \ |
d7d03008 | 5003 | | tilegx | tilepro | visium | xstormy16 | xtensa) |
142cf471 | 5004 | insn="nop" |
5005 | ;; | |
5b80c8e4 | 5006 | ia64 | s390) |
142cf471 | 5007 | insn="nop 0" |
5008 | ;; | |
5b80c8e4 | 5009 | mmix) |
482662fd | 5010 | insn="swym 0" |
5011 | ;; | |
6d6c1801 | 5012 | esac |
5013 | if test x"$insn" != x; then | |
5014 | conftest_s="\ | |
5015 | .file 1 \"conftest.s\" | |
5016 | .loc 1 3 0 | |
5017 | $insn" | |
5018 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
5019 | gcc_cv_as_dwarf2_debug_line, | |
5020 | [elf,2,11,0],, [$conftest_s], | |
1b33a244 | 5021 | [if test x$gcc_cv_objdump != x \ |
5022 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
5023 | | grep debug_line > /dev/null 2>&1; then | |
6d6c1801 | 5024 | gcc_cv_as_dwarf2_debug_line=yes |
0b135c47 | 5025 | elif test x$gcc_cv_otool != x \ |
5026 | && $gcc_cv_otool -l conftest.o 2> /dev/null \ | |
5027 | | grep debug_line > /dev/null 2>&1; then | |
5028 | gcc_cv_as_dwarf2_debug_line=yes | |
6d6c1801 | 5029 | fi]) |
5030 | ||
5031 | # The .debug_line file table must be in the exact order that | |
5032 | # we specified the files, since these indices are also used | |
5033 | # by DW_AT_decl_file. Approximate this test by testing if | |
5034 | # the assembler bitches if the same index is assigned twice. | |
5035 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
5036 | gcc_cv_as_dwarf2_file_buggy,,, | |
5037 | [ .file 1 "foo.s" | |
5038 | .file 1 "bar.s"]) | |
5039 | ||
5040 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
5041 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
7b0db09c | 5042 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
6d6c1801 | 5043 | [Define if your assembler supports dwarf2 .file/.loc directives, |
4a82352a | 5044 | and preserves file table indices exactly as given.]) |
7b0db09c | 5045 | |
5046 | if test $gcc_cv_as_leb128 = yes; then | |
5047 | conftest_s="\ | |
5048 | .file 1 \"conftest.s\" | |
5049 | .loc 1 3 0 view .LVU1 | |
5050 | $insn | |
5051 | .data | |
5052 | .uleb128 .LVU1 | |
5053 | .uleb128 .LVU1 | |
5054 | " | |
5055 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support], | |
5056 | gcc_cv_as_dwarf2_debug_view, | |
5057 | [elf,2,27,0],,[$conftest_s],, | |
5058 | [AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1, | |
5059 | [Define if your assembler supports views in dwarf2 .loc directives.])]) | |
5060 | fi | |
6d6c1801 | 5061 | fi |
5062 | ||
5063 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
5064 | gcc_cv_as_gdwarf2_flag, | |
5065 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
5066 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
5067 | [Define if your assembler supports the --gdwarf2 option.])]) | |
5068 | ||
5069 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
5070 | gcc_cv_as_gstabs_flag, | |
3efb5d22 | 5071 | [elf,2,11,0], [--gstabs], [$insn],, |
6d6c1801 | 5072 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, |
5073 | [Define if your assembler supports the --gstabs option.])]) | |
5f1f2de5 | 5074 | |
5075 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
5076 | gcc_cv_as_debug_prefix_map_flag, | |
22ff3bfb | 5077 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
5f1f2de5 | 5078 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
5079 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
142cf471 | 5080 | fi |
1a6f9700 | 5081 | |
4185c905 | 5082 | gcc_GAS_CHECK_FEATURE([compressed debug sections], |
8151105d | 5083 | gcc_cv_as_compress_debug,,,, |
4185c905 | 5084 | [# gas compiled without zlib cannot compress debug sections and warns |
5085 | # about it, but still exits successfully. So check for this, too. | |
5086 | if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null | |
5087 | then | |
5088 | gcc_cv_as_compress_debug=0 | |
8151105d | 5089 | # Since binutils 2.26, gas supports --compress-debug-sections=type, |
5090 | # defaulting to the ELF gABI format. | |
5091 | elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1 | |
5092 | then | |
5093 | gcc_cv_as_compress_debug=2 | |
5094 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5095 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5096 | # Before binutils 2.26, gas only supported --compress-debug-options and | |
5097 | # emitted the traditional GNU format. | |
4185c905 | 5098 | elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1 |
5099 | then | |
5100 | gcc_cv_as_compress_debug=1 | |
5101 | gcc_cv_as_compress_debug_option="--compress-debug-sections" | |
5102 | gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections" | |
5103 | else | |
5104 | gcc_cv_as_compress_debug=0 | |
4185c905 | 5105 | fi]) |
5106 | AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug, | |
5107 | [Define to the level of your assembler's compressed debug section support.]) | |
5108 | AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option", | |
5109 | [Define to the assembler option to enable compressed debug sections.]) | |
5110 | AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option", | |
5111 | [Define to the assembler option to disable compressed debug sections.]) | |
5112 | ||
a65d7dd0 | 5113 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
5114 | ,, | |
5115 | [.lcomm bar,4,16],, | |
5116 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
5117 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
5118 | ||
4543a554 | 5119 | if test x$with_sysroot = x && test x$host = x$target \ |
5120 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
5121 | && test "$prefix" != "NONE"; then | |
5122 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
5123 | [Define to PREFIX/include if cpp should also search that directory.]) | |
5124 | fi | |
5125 | ||
4543a554 | 5126 | # Determine the version of glibc, if any, used on the target. |
5127 | AC_MSG_CHECKING([for target glibc version]) | |
5128 | AC_ARG_WITH([glibc-version], | |
5129 | [AS_HELP_STRING([--with-glibc-version=M.N], | |
5130 | [assume GCC used with glibc version M.N or later])], [ | |
5131 | if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then | |
5132 | glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'` | |
5133 | glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'` | |
5134 | else | |
5135 | AC_MSG_ERROR([option --with-glibc-version requires a version number M.N]) | |
5136 | fi], [ | |
5137 | glibc_version_major=0 | |
5138 | glibc_version_minor=0 | |
5139 | [if test -f $target_header_dir/features.h \ | |
5140 | && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \ | |
5141 | && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then | |
5142 | glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'` | |
5143 | glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'` | |
5144 | fi]]) | |
5145 | AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor]) | |
6eb68b8f | 5146 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major], |
5147 | [GNU C Library major version number used on the target, or 0.]) | |
5148 | AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor], | |
5149 | [GNU C Library minor version number used on the target, or 0.]) | |
4543a554 | 5150 | |
924907a3 | 5151 | AC_ARG_ENABLE(gnu-unique-object, |
d9d975ae | 5152 | [AS_HELP_STRING([--enable-gnu-unique-object], |
5153 | [enable the use of the @gnu_unique_object ELF extension on glibc systems])], | |
924907a3 | 5154 | [case $enable_gnu_unique_object in |
5155 | yes | no) ;; | |
5156 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
5157 | Valid choices are 'yes' and 'no'.]) ;; | |
5158 | esac], | |
5159 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
5160 | [elf,2,19,52],, | |
4eb5a747 | 5161 | [.type foo, '$target_type_format_char'gnu_unique_object],, |
5162 | # We need to unquote above to to use the definition from config.gcc. | |
924907a3 | 5163 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
4543a554 | 5164 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )] |
5165 | )]) | |
924907a3 | 5166 | if test x$enable_gnu_unique_object = xyes; then |
5167 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
5168 | [Define if your assembler supports @gnu_unique_object.]) | |
5169 | fi | |
5170 | ||
a8971681 | 5171 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
5172 | [gcc_cv_as_line_zero], | |
5173 | [gcc_cv_as_line_zero=no | |
5174 | if test $in_tree_gas = yes; then | |
95cd4953 | 5175 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
a8971681 | 5176 | elif test "x$gcc_cv_as" != x; then |
5177 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
5178 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
5179 | test "x`cat conftest.out`" = x | |
5180 | then | |
5181 | gcc_cv_as_line_zero=yes | |
5182 | else | |
5183 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
5184 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
5185 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
5186 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
5187 | fi | |
5188 | rm -f conftest.o conftest.s conftest.out | |
5189 | fi]) | |
5190 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
5191 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
5192 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
5193 | fi | |
5194 | ||
655e3fb1 | 5195 | AC_MSG_CHECKING(support for thin archives) |
5196 | thin_archive_support=no | |
5197 | echo 'int main (void) { return 0; }' > conftest.c | |
5198 | if ($AR --version | sed 1q | grep "GNU ar" \ | |
5199 | && $CC $CFLAGS -c conftest.c \ | |
5200 | && $AR rcT conftest.a conftest.o \ | |
5201 | && $CC $CFLAGS $LDFLAGS -o conftest conftest.a) >/dev/null 2>&1; then | |
5202 | thin_archive_support=yes | |
5203 | fi | |
5204 | rm -f conftest.c conftest.o conftest.a conftest | |
5205 | AC_MSG_RESULT($thin_archive_support) | |
5206 | AC_SUBST(thin_archive_support) | |
5207 | ||
0d6378a9 | 5208 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
5209 | gcc_cv_ld_eh_frame_hdr=no | |
7349ace9 | 5210 | if test $in_tree_ld = yes ; then |
0dac358a | 5211 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5212 | && test $in_tree_ld_is_elf = yes; then | |
0d6378a9 | 5213 | gcc_cv_ld_eh_frame_hdr=yes |
5214 | fi | |
5215 | elif test x$gcc_cv_ld != x; then | |
bdd793b2 | 5216 | if echo "$ld_ver" | grep GNU > /dev/null; then |
5217 | # Check if linker supports --eh-frame-hdr option | |
f50c2ca3 | 5218 | if $gcc_cv_ld --help 2>&1 | grep eh-frame-hdr > /dev/null; then |
bdd793b2 | 5219 | gcc_cv_ld_eh_frame_hdr=yes |
5220 | fi | |
5221 | else | |
5222 | case "$target" in | |
5223 | *-*-solaris2*) | |
839ff241 | 5224 | # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251. |
5225 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then | |
bdd793b2 | 5226 | gcc_cv_ld_eh_frame_hdr=yes |
5227 | fi | |
5228 | ;; | |
5229 | esac | |
5230 | fi | |
0d6378a9 | 5231 | fi |
fcd42b1e | 5232 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
0d6378a9 | 5233 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
5234 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
bdd793b2 | 5235 | [Define if your linker supports .eh_frame_hdr.]) |
0d6378a9 | 5236 | fi |
5237 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
5238 | ||
75d28287 | 5239 | AC_MSG_CHECKING(linker CIEv3 in .eh_frame support) |
5240 | gcc_cv_ld_eh_frame_ciev3=no | |
5241 | if test $in_tree_ld = yes ; then | |
5242 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5243 | && test $in_tree_ld_is_elf = yes; then | |
5244 | gcc_cv_ld_eh_frame_ciev3=yes | |
5245 | fi | |
5246 | elif test x$gcc_cv_ld != x; then | |
5247 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5248 | gcc_cv_ld_eh_frame_ciev3=yes | |
5249 | if test 0"$ld_date" -lt 20040513; then | |
5250 | if test -n "$ld_date"; then | |
5251 | # If there was date string, but was earlier than 2004-05-13, fail | |
5252 | gcc_cv_ld_eh_frame_ciev3=no | |
5253 | elif test "$ld_vers_major" -lt 2; then | |
5254 | gcc_cv_ld_eh_frame_ciev3=no | |
5255 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
5256 | gcc_cv_ld_eh_frame_ciev3=no | |
5257 | fi | |
5258 | fi | |
5259 | else | |
5260 | case "$target" in | |
5261 | *-*-solaris2*) | |
5262 | # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1. | |
5263 | if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then | |
5264 | gcc_cv_ld_eh_frame_ciev3=yes | |
5265 | fi | |
5266 | ;; | |
5267 | esac | |
5268 | fi | |
5269 | fi | |
5270 | AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3, | |
5271 | [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`], | |
5272 | [Define 0/1 if your linker supports CIE v3 in .eh_frame.]) | |
5273 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3) | |
5274 | ||
c3ce66b0 | 5275 | AC_MSG_CHECKING(linker position independent executable support) |
5276 | gcc_cv_ld_pie=no | |
5277 | if test $in_tree_ld = yes ; then | |
80fc7cb7 | 5278 | case "$target" in |
5279 | # Full PIE support on Solaris was only introduced in gld 2.26. | |
5280 | *-*-solaris2*) gcc_gld_pie_min_version=26 ;; | |
5281 | *) gcc_gld_pie_min_version=15 ;; | |
5282 | esac | |
5283 | 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 | 5284 | && test $in_tree_ld_is_elf = yes; then |
c3ce66b0 | 5285 | gcc_cv_ld_pie=yes |
5286 | fi | |
5287 | elif test x$gcc_cv_ld != x; then | |
80fc7cb7 | 5288 | # Check if linker supports -pie option |
f50c2ca3 | 5289 | if $gcc_cv_ld --help 2>&1 | grep -- -pie > /dev/null; then |
80fc7cb7 | 5290 | gcc_cv_ld_pie=yes |
5291 | case "$target" in | |
5292 | *-*-solaris2*) | |
5293 | if echo "$ld_ver" | grep GNU > /dev/null \ | |
5294 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5295 | gcc_cv_ld_pie=no | |
5296 | fi | |
5297 | ;; | |
5298 | esac | |
5299 | else | |
5300 | case "$target" in | |
5301 | *-*-solaris2.1[[1-9]]*) | |
9273bda7 | 5302 | # Solaris 11.3 added PIE support. |
80fc7cb7 | 5303 | if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then |
5304 | gcc_cv_ld_pie=yes | |
c3ce66b0 | 5305 | fi |
80fc7cb7 | 5306 | ;; |
5307 | esac | |
5308 | fi | |
c3ce66b0 | 5309 | fi |
5310 | if test x"$gcc_cv_ld_pie" = xyes; then | |
5311 | AC_DEFINE(HAVE_LD_PIE, 1, | |
80fc7cb7 | 5312 | [Define if your linker supports PIE option.]) |
c3ce66b0 | 5313 | fi |
5314 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
130f2334 | 5315 | |
5316 | AC_MSG_CHECKING(linker PIE support with copy reloc) | |
5317 | gcc_cv_ld_pie_copyreloc=no | |
5318 | if test $gcc_cv_ld_pie = yes ; then | |
5319 | if test $in_tree_ld = yes ; then | |
5320 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
5321 | gcc_cv_ld_pie_copyreloc=yes | |
5322 | fi | |
5323 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5324 | # Check if linker supports -pie option with copy reloc | |
5325 | case "$target" in | |
5326 | i?86-*-linux* | x86_64-*-linux*) | |
5327 | cat > conftest1.s <<EOF | |
5328 | .globl a_glob | |
5329 | .data | |
5330 | .type a_glob, @object | |
5331 | .size a_glob, 4 | |
5332 | a_glob: | |
5333 | .long 2 | |
5334 | EOF | |
5335 | cat > conftest2.s <<EOF | |
5336 | .text | |
5337 | .globl main | |
5338 | .type main, @function | |
5339 | main: | |
5340 | movl %eax, a_glob(%rip) | |
5341 | .size main, .-main | |
32f62b18 | 5342 | .globl ptr |
5343 | .section .data.rel,"aw",@progbits | |
5344 | .type ptr, @object | |
5345 | ptr: | |
5346 | .quad a_glob | |
130f2334 | 5347 | EOF |
5348 | if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5349 | && $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \ | |
5350 | && $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5351 | && $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then | |
5352 | gcc_cv_ld_pie_copyreloc=yes | |
5353 | fi | |
5354 | rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s | |
5355 | ;; | |
5356 | esac | |
5357 | fi | |
130f2334 | 5358 | fi |
8271b807 | 5359 | AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC, |
5360 | [`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`], | |
5361 | [Define 0/1 if your linker supports -pie option with copy reloc.]) | |
130f2334 | 5362 | AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc) |
c3ce66b0 | 5363 | |
0a011112 | 5364 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
5365 | gcc_cv_ld_eh_gc_sections=no | |
5366 | if test $in_tree_ld = yes ; then | |
5367 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5368 | && test $in_tree_ld_is_elf = yes; then | |
5369 | gcc_cv_ld_eh_gc_sections=yes | |
5370 | fi | |
5371 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
5372 | cat > conftest.s <<EOF | |
5373 | .section .text | |
5374 | .globl _start | |
5375 | .type _start, @function | |
5376 | _start: | |
5377 | .long foo | |
5378 | .size _start, .-_start | |
5379 | .section .text.foo,"ax",@progbits | |
5380 | .type foo, @function | |
5381 | foo: | |
5382 | .long 0 | |
5383 | .size foo, .-foo | |
5384 | .section .gcc_except_table.foo,"a",@progbits | |
5385 | .L0: | |
5386 | .long 0 | |
5387 | .section .eh_frame,"a",@progbits | |
5388 | .long .L0 | |
5389 | EOF | |
5390 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5391 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5392 | | grep "gc-sections option ignored" > /dev/null; then | |
5393 | gcc_cv_ld_eh_gc_sections=no | |
a6898883 | 5394 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5395 | | grep gcc_except_table > /dev/null; then | |
0a011112 | 5396 | gcc_cv_ld_eh_gc_sections=yes |
c8aaf000 | 5397 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
5398 | if test x$gcc_cv_as_comdat_group != xyes; then | |
5399 | gcc_cv_ld_eh_gc_sections=no | |
5400 | cat > conftest.s <<EOF | |
5401 | .section .text | |
5402 | .globl _start | |
5403 | .type _start, @function | |
5404 | _start: | |
5405 | .long foo | |
5406 | .size _start, .-_start | |
5407 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
5408 | .type foo, @function | |
5409 | foo: | |
5410 | .long 0 | |
5411 | .size foo, .-foo | |
5412 | .section .gcc_except_table.foo,"a",@progbits | |
5413 | .L0: | |
5414 | .long 0 | |
5415 | .section .eh_frame,"a",@progbits | |
5416 | .long .L0 | |
5417 | EOF | |
5418 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5419 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5420 | | grep "gc-sections option ignored" > /dev/null; then | |
5421 | gcc_cv_ld_eh_gc_sections=no | |
a6898883 | 5422 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ |
5423 | | grep gcc_except_table > /dev/null; then | |
c8aaf000 | 5424 | gcc_cv_ld_eh_gc_sections=yes |
5425 | fi | |
5426 | fi | |
5427 | fi | |
0a011112 | 5428 | fi |
5429 | fi | |
5430 | rm -f conftest.s conftest.o conftest | |
5431 | fi | |
c8aaf000 | 5432 | case "$target" in |
5433 | hppa*-*-linux*) | |
5434 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
5435 | gcc_cv_ld_eh_gc_sections=no | |
5436 | ;; | |
5437 | esac | |
0a011112 | 5438 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
5439 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
5440 | [Define if your linker supports garbage collection of | |
5441 | sections in presence of EH frames.]) | |
5442 | fi | |
5443 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
5444 | ||
34edf61b | 5445 | AC_MSG_CHECKING(linker EH garbage collection of sections bug) |
5446 | gcc_cv_ld_eh_gc_sections_bug=no | |
5447 | if test $in_tree_ld = yes ; then | |
5448 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \ | |
5449 | && test $in_tree_ld_is_elf = yes; then | |
5450 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5451 | fi | |
5452 | elif test x$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 | |
5453 | gcc_cv_ld_eh_gc_sections_bug=yes | |
5454 | cat > conftest.s <<EOF | |
5455 | .section .text | |
5456 | .globl _start | |
5457 | .type _start, @function | |
5458 | _start: | |
5459 | .long foo | |
5460 | .size _start, .-_start | |
5461 | .section .text.startup.foo,"ax",@progbits | |
5462 | .type foo, @function | |
5463 | foo: | |
5464 | .long 0 | |
5465 | .size foo, .-foo | |
5466 | .section .gcc_except_table.foo,"a",@progbits | |
5467 | .L0: | |
5468 | .long 0 | |
5469 | .section .eh_frame,"a",@progbits | |
5470 | .long .L0 | |
5471 | EOF | |
5472 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
5473 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
5474 | | grep "gc-sections option ignored" > /dev/null; then | |
5475 | : | |
5476 | elif $gcc_cv_objdump -h conftest 2> /dev/null \ | |
5477 | | grep gcc_except_table > /dev/null; then | |
5478 | gcc_cv_ld_eh_gc_sections_bug=no | |
5479 | fi | |
5480 | fi | |
5481 | rm -f conftest.s conftest.o conftest | |
5482 | fi | |
5483 | if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then | |
5484 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1, | |
5485 | [Define if your linker has buggy garbage collection of | |
5486 | sections support when .text.startup.foo like sections are used.]) | |
5487 | fi | |
5488 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug) | |
5489 | ||
4185c905 | 5490 | AC_MSG_CHECKING(linker for compressed debug sections) |
5491 | # gold/gld support compressed debug sections since binutils 2.19/2.21 | |
8151105d | 5492 | # In binutils 2.26, gld gained support for the ELF gABI format. |
4185c905 | 5493 | if test $in_tree_ld = yes ; then |
5494 | gcc_cv_ld_compress_debug=0 | |
5495 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5496 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then | |
5497 | gcc_cv_ld_compress_debug=2 | |
5498 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
8151105d | 5499 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5500 | && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then | |
5501 | gcc_cv_ld_compress_debug=3 | |
5502 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
4185c905 | 5503 | elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \ |
5504 | && test $in_tree_ld_is_elf = yes; then | |
5505 | gcc_cv_ld_compress_debug=1 | |
5506 | fi | |
5507 | elif echo "$ld_ver" | grep GNU > /dev/null; then | |
8151105d | 5508 | if test "$ld_vers_major" -lt 2 \ |
5509 | || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then | |
5510 | gcc_cv_ld_compress_debug=0 | |
5511 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then | |
5512 | gcc_cv_ld_compress_debug=1 | |
5513 | else | |
5514 | gcc_cv_ld_compress_debug=3 | |
5515 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
4185c905 | 5516 | fi |
5517 | if test $ld_is_gold = yes; then | |
5518 | gcc_cv_ld_compress_debug=2 | |
5519 | gcc_cv_ld_compress_debug_option="--compress-debug-sections" | |
5520 | fi | |
5521 | else | |
5522 | changequote(,)dnl | |
5523 | case "${target}" in | |
5524 | *-*-solaris2*) | |
5525 | # Introduced in Solaris 11.2. | |
5526 | if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then | |
5527 | gcc_cv_ld_compress_debug=3 | |
5528 | gcc_cv_ld_compress_debug_option="-z compress-sections" | |
5529 | else | |
5530 | gcc_cv_ld_compress_debug=0 | |
5531 | fi | |
5532 | ;; | |
5533 | *) | |
5534 | # Assume linkers other than GNU ld don't support compessed debug | |
5535 | # sections. | |
5536 | gcc_cv_ld_compress_debug=0 | |
5537 | ;; | |
5538 | esac | |
5539 | changequote([,])dnl | |
5540 | fi | |
5541 | AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug, | |
5542 | [Define to the level of your linker's compressed debug section support.]) | |
5543 | AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option", | |
5544 | [Define to the linker option to enable compressed debug sections.]) | |
5545 | AC_MSG_RESULT($gcc_cv_ld_compress_debug) | |
5546 | ||
6afab66e | 5547 | if test x"$ld64_flag" = x"yes"; then |
5548 | ||
5549 | # Set defaults for possibly untestable items. | |
5550 | gcc_cv_ld64_export_dynamic=0 | |
5551 | ||
5552 | if test "$build" = "$host"; then | |
5553 | darwin_try_test=1 | |
5554 | else | |
5555 | darwin_try_test=0 | |
5556 | fi | |
5557 | ||
5558 | # On Darwin, because of FAT library support, it is often possible to execute | |
5559 | # exes from compatible archs even when the host differs from the build system. | |
5560 | case "$build","$host" in | |
5561 | x86_64-*-darwin*,i?86-*-darwin* | powerpc64*-*-darwin*,powerpc*-*-darwin*) | |
5562 | darwin_try_test=1;; | |
5563 | *) ;; | |
5564 | esac | |
5565 | ||
5566 | # If the configurer specified a minimum ld64 version to be supported, then use | |
5567 | # that to determine feature support. | |
5568 | if test x"${gcc_cv_ld64_version}" != x; then | |
188f3056 | 5569 | AC_MSG_CHECKING(ld64 specified version) |
5570 | gcc_cv_ld64_major=`echo "$gcc_cv_ld64_version" | sed -e 's/\..*//'` | |
6afab66e | 5571 | AC_MSG_RESULT($gcc_cv_ld64_major) |
5572 | if test "$gcc_cv_ld64_major" -ge 236; then | |
5573 | gcc_cv_ld64_export_dynamic=1 | |
5574 | fi | |
5575 | elif test -x "$gcc_cv_ld" -a "$darwin_try_test" -eq 1; then | |
5576 | # If the version was not specified, try to find it. | |
5577 | AC_MSG_CHECKING(linker version) | |
5578 | if test x"${gcc_cv_ld64_version}" = x; then | |
5579 | gcc_cv_ld64_version=`$gcc_cv_ld -v 2>&1 | grep ld64 | sed s/.*ld64-// | awk '{print $1}'` | |
5580 | fi | |
5581 | AC_MSG_RESULT($gcc_cv_ld64_version) | |
5582 | ||
5583 | AC_MSG_CHECKING(linker for -export_dynamic support) | |
5584 | gcc_cv_ld64_export_dynamic=1 | |
5585 | if $gcc_cv_ld -export_dynamic < /dev/null 2>&1 | grep 'unknown option' > /dev/null; then | |
5586 | gcc_cv_ld64_export_dynamic=0 | |
5587 | fi | |
5588 | AC_MSG_RESULT($gcc_cv_ld64_export_dynamic) | |
5589 | fi | |
5590 | ||
5591 | if test x"${gcc_cv_ld64_version}" != x; then | |
5592 | AC_DEFINE_UNQUOTED(LD64_VERSION, "${gcc_cv_ld64_version}", | |
5593 | [Define to ld64 version.]) | |
5594 | fi | |
5595 | ||
5596 | AC_DEFINE_UNQUOTED(LD64_HAS_EXPORT_DYNAMIC, $gcc_cv_ld64_export_dynamic, | |
5597 | [Define to 1 if ld64 supports '-export_dynamic'.]) | |
5598 | fi | |
5599 | ||
d8a2ca58 | 5600 | # -------- |
5601 | # UNSORTED | |
5602 | # -------- | |
5603 | ||
11a4b5d2 | 5604 | AC_CACHE_CHECK(linker --as-needed support, |
5605 | gcc_cv_ld_as_needed, | |
5606 | [gcc_cv_ld_as_needed=no | |
8aaed91d | 5607 | gcc_cv_ld_as_needed_option='--as-needed' |
5608 | gcc_cv_ld_no_as_needed_option='--no-as-needed' | |
6a40149e | 5609 | if test $in_tree_ld = yes ; then |
5610 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
5611 | && test $in_tree_ld_is_elf = yes; then | |
5612 | gcc_cv_ld_as_needed=yes | |
305fd725 | 5613 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then |
5614 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5615 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5616 | fi | |
6a40149e | 5617 | fi |
5618 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5619 | # Check if linker supports --as-needed and --no-as-needed options |
5620 | if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then | |
5621 | gcc_cv_ld_as_needed=yes | |
305fd725 | 5622 | if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \ |
5623 | && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \ | |
5624 | && echo "$ld_ver" | grep GNU > /dev/null \ | |
5625 | && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then | |
5626 | # Use these options only when both ld.bfd and ld.gold support | |
5627 | # --push-state/--pop-state, which unfortunately wasn't added | |
5628 | # at the same time. | |
5629 | gcc_cv_ld_as_needed_option='--push-state --as-needed' | |
5630 | gcc_cv_ld_no_as_needed_option='--pop-state' | |
5631 | fi | |
f50c2ca3 | 5632 | fi |
5633 | case "$target:$gnu_ld" in | |
5634 | *-*-solaris2*:no) | |
5635 | # Solaris 2 ld always supports -z ignore/-z record. Prefer the native | |
5636 | # forms. | |
5637 | gcc_cv_ld_as_needed=yes | |
5638 | gcc_cv_ld_as_needed_option="-z ignore" | |
5639 | gcc_cv_ld_no_as_needed_option="-z record" | |
5640 | ;; | |
5641 | esac | |
6a40149e | 5642 | fi |
a861c00f | 5643 | # --as-needed/-z ignore can only be used if libgcc_s.so.1 uses |
5644 | # dl_iterate_phdr, i.e. since Solaris 11. | |
5645 | case "$target" in | |
5646 | *-*-solaris2.1[[1-9]]*) | |
5647 | case "$target" in | |
5648 | i?86-*-* | x86_64-*-*) | |
5649 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
5650 | # Doesn't work with gld on Solaris/x86 due to PR ld/12320. | |
5651 | gcc_cv_ld_as_needed=no | |
5652 | fi | |
5653 | ;; | |
5654 | esac | |
5655 | ;; | |
5656 | *-*-solaris2*) | |
5657 | gcc_cv_ld_as_needed=no | |
5658 | ;; | |
5659 | esac | |
11a4b5d2 | 5660 | ]) |
6a40149e | 5661 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
5662 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
8aaed91d | 5663 | [Define if your linker supports --as-needed/--no-as-needed or equivalent options.]) |
5664 | AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option", | |
5665 | [Define to the linker option to ignore unused dependencies.]) | |
5666 | AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option", | |
5667 | [Define to the linker option to keep unused dependencies.]) | |
6a40149e | 5668 | fi |
6a40149e | 5669 | |
53037a4d | 5670 | AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities) |
5671 | saved_LDFLAGS="$LDFLAGS" | |
5672 | for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do | |
5673 | LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map" | |
f00f02a3 | 5674 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
53037a4d | 5675 | [gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no]) |
5676 | done | |
5677 | LDFLAGS="$saved_LDFLAGS" | |
5678 | if test "x$gcc_cv_ld_clearcap" = xyes; then | |
5679 | AC_DEFINE([HAVE_LD_CLEARCAP], 1, | |
5680 | [Define if the linker supports clearing hardware capabilities via mapfile.]) | |
5681 | AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map]) | |
5682 | fi | |
5683 | AC_MSG_RESULT($gcc_cv_ld_clearcap) | |
5684 | ||
2789368d | 5685 | case "$target" in |
5686 | powerpc*-*-*) | |
5687 | case "$target" in | |
5688 | *le-*-linux*) | |
5689 | emul_name="-melf32lppc" | |
5690 | ;; | |
5691 | *) | |
5692 | emul_name="-melf32ppc" | |
5693 | ;; | |
5694 | esac | |
5695 | AC_CACHE_CHECK(linker .gnu.attributes long double support, | |
5696 | gcc_cv_ld_ppc_attr, | |
5697 | [gcc_cv_ld_ppc_attr=no | |
5698 | if test x"$ld_is_gold" = xyes; then | |
5699 | gcc_cv_ld_ppc_attr=yes | |
5700 | elif test $in_tree_ld = yes ; then | |
5701 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
5702 | -a "$gcc_cv_gld_minor_version" -ge 28 \ | |
5703 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
5704 | gcc_cv_ld_ppc_attr=yes | |
5705 | fi | |
5706 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5707 | # check that merging the long double .gnu_attribute doesn't warn | |
5708 | cat > conftest1.s <<EOF | |
5709 | .gnu_attribute 4,1 | |
5710 | EOF | |
5711 | cat > conftest2.s <<EOF | |
5712 | .gnu_attribute 4,9 | |
5713 | EOF | |
5714 | if $gcc_cv_as -a32 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5715 | && $gcc_cv_as -a32 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
5716 | && $gcc_cv_ld $emul_name -r -o conftest.o conftest1.o conftest2.o > /dev/null 2> conftest.err \ | |
5717 | && test ! -s conftest.err; then | |
5718 | gcc_cv_ld_ppc_attr=yes | |
5719 | fi | |
5720 | rm -f conftest.err conftest.o conftest1.o conftest2.o conftest1.s conftest2.s | |
5721 | fi | |
5722 | ]) | |
5723 | if test x$gcc_cv_ld_ppc_attr = xyes; then | |
5724 | AC_DEFINE(HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE, 1, | |
5725 | [Define if your PowerPC linker has .gnu.attributes long double support.]) | |
5726 | fi | |
5727 | ;; | |
5728 | esac | |
5729 | ||
4de3052c | 5730 | case "$target:$tm_file" in |
2ac000bb | 5731 | powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) |
5732 | case "$target" in | |
7c291732 | 5733 | *le-*-linux*) |
5734 | emul_name="-melf64lppc" | |
5735 | ;; | |
2ac000bb | 5736 | *-*-linux*) |
5737 | emul_name="-melf64ppc" | |
5738 | ;; | |
5739 | *-*-freebsd*) | |
5740 | emul_name="-melf64ppc_fbsd" | |
5741 | ;; | |
5742 | esac | |
66ebfa67 | 5743 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
5744 | gcc_cv_ld_no_dot_syms, | |
5745 | [gcc_cv_ld_no_dot_syms=no | |
8caed8e3 | 5746 | if test x"$ld_is_gold" = xyes; then |
5747 | gcc_cv_ld_no_dot_syms=yes | |
5748 | elif test $in_tree_ld = yes ; then | |
66ebfa67 | 5749 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then |
5750 | gcc_cv_ld_no_dot_syms=yes | |
5751 | fi | |
5752 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5753 | cat > conftest1.s <<EOF | |
5754 | .text | |
5755 | bl .foo | |
5756 | EOF | |
5757 | cat > conftest2.s <<EOF | |
5758 | .section ".opd","aw" | |
5759 | .align 3 | |
5760 | .globl foo | |
5761 | .type foo,@function | |
5762 | foo: | |
5763 | .quad .LEfoo,.TOC.@tocbase,0 | |
5764 | .text | |
5765 | .LEfoo: | |
5766 | blr | |
5767 | .size foo,.-.LEfoo | |
5768 | EOF | |
5769 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
5770 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2ac000bb | 5771 | && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then |
66ebfa67 | 5772 | gcc_cv_ld_no_dot_syms=yes |
5773 | fi | |
5774 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
5775 | fi | |
5776 | ]) | |
5777 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
5778 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
5779 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
5780 | fi | |
72350d7b | 5781 | |
5782 | AC_CACHE_CHECK(linker large toc support, | |
5783 | gcc_cv_ld_large_toc, | |
5784 | [gcc_cv_ld_large_toc=no | |
8caed8e3 | 5785 | if test x"$ld_is_gold" = xyes; then |
5786 | gcc_cv_ld_large_toc=yes | |
5787 | elif test $in_tree_ld = yes ; then | |
72350d7b | 5788 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then |
5789 | gcc_cv_ld_large_toc=yes | |
5790 | fi | |
5791 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
5792 | cat > conftest.s <<EOF | |
5793 | .section ".tbss","awT",@nobits | |
5794 | .align 3 | |
5795 | ie0: .space 8 | |
5796 | .global _start | |
5797 | .text | |
5798 | _start: | |
5799 | addis 9,13,ie0@got@tprel@ha | |
5800 | ld 9,ie0@got@tprel@l(9) | |
5801 | EOF | |
5802 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
2ac000bb | 5803 | && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then |
72350d7b | 5804 | gcc_cv_ld_large_toc=yes |
5805 | fi | |
5806 | rm -f conftest conftest.o conftest.s | |
5807 | fi | |
5808 | ]) | |
5809 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5810 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
5811 | [Define if your PowerPC64 linker supports a large TOC.]) | |
5812 | fi | |
029eed15 | 5813 | |
5814 | AC_CACHE_CHECK(linker toc pointer alignment, | |
5815 | gcc_cv_ld_toc_align, | |
5816 | [if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then | |
5817 | cat > conftest.s <<EOF | |
5818 | .global _start | |
5819 | .text | |
5820 | _start: | |
5821 | addis 9,2,x@got@ha | |
5822 | .section .data.rel.ro,"aw",@progbits | |
5823 | .p2align 16 | |
5824 | .space 32768 | |
5825 | x: .quad .TOC. | |
5826 | EOF | |
5827 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \ | |
2e139797 | 5828 | && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then |
029eed15 | 5829 | gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'` |
5830 | fi | |
5831 | rm -f conftest conftest.o conftest.s | |
5832 | fi | |
5833 | ]) | |
5834 | if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then | |
5835 | AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align, | |
5836 | [Define to .TOC. alignment forced by your linker.]) | |
5837 | fi | |
66ebfa67 | 5838 | ;; |
5839 | esac | |
5840 | ||
0a2ab8cc | 5841 | case "$target" in |
5842 | *-*-aix*) | |
5843 | AC_CACHE_CHECK(linker large toc support, | |
5844 | gcc_cv_ld_large_toc, | |
5845 | [gcc_cv_ld_large_toc=no | |
5846 | if test x$gcc_cv_as != x ; then | |
5847 | cat > conftest.s <<EOF | |
5848 | .toc | |
5849 | LC..1: | |
5850 | .tc a[[TC]],a[[RW]] | |
5851 | .extern a[[RW]] | |
5852 | .csect .text[[PR]] | |
5853 | .largetoctest: | |
5854 | addis 9,LC..1@u(2) | |
5855 | ld 3,LC..1@l(9) | |
5856 | EOF | |
5857 | if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then | |
5858 | gcc_cv_ld_large_toc=yes | |
5859 | fi | |
5860 | rm -f conftest conftest.o conftest.s | |
5861 | fi | |
5862 | ]) | |
5863 | if test x"$gcc_cv_ld_large_toc" = xyes; then | |
5864 | AC_DEFINE(HAVE_LD_LARGE_TOC, 1, | |
15ba1c5f | 5865 | [Define if your PowerPC64 linker supports a large TOC.]) |
0a2ab8cc | 5866 | fi |
5867 | ;; | |
5868 | esac | |
5869 | ||
8271b966 | 5870 | AC_CACHE_CHECK(linker --build-id support, |
5871 | gcc_cv_ld_buildid, | |
5872 | [gcc_cv_ld_buildid=no | |
5873 | if test $in_tree_ld = yes ; then | |
5874 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5875 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
5876 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5877 | && test $in_tree_ld_is_elf = yes; then | |
5878 | gcc_cv_ld_buildid=yes | |
5879 | fi | |
5880 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5881 | if $gcc_cv_ld --help 2>&1 | grep build-id > /dev/null; then |
8271b966 | 5882 | gcc_cv_ld_buildid=yes |
5883 | fi | |
5884 | fi]) | |
5885 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5886 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
5887 | [Define if your linker supports --build-id.]) | |
5888 | fi | |
5889 | ||
5890 | AC_ARG_ENABLE(linker-build-id, | |
bc6c87c1 | 5891 | [AS_HELP_STRING([--enable-linker-build-id], |
5892 | [compiler will always pass --build-id to linker])], | |
8271b966 | 5893 | [], |
5894 | enable_linker_build_id=no) | |
5895 | ||
5896 | if test x"$enable_linker_build_id" = xyes; then | |
5897 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
5898 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
5899 | [Define if gcc should always pass --build-id to linker.]) | |
5900 | else | |
5901 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
5902 | fi | |
5903 | fi | |
5904 | ||
477b521a | 5905 | # In binutils 2.21, GNU ld gained support for new emulations fully |
5906 | # supporting the Solaris 2 ABI. Detect their presence in the linker used. | |
5907 | AC_CACHE_CHECK(linker *_sol2 emulation support, | |
5908 | gcc_cv_ld_sol2_emulation, | |
5909 | [gcc_cv_ld_sol2_emulation=no | |
5910 | if test $in_tree_ld = yes ; then | |
5911 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
5912 | "$gcc_cv_gld_minor_version" -ge 21 -o \ | |
5913 | "$gcc_cv_gld_major_version" -gt 2 \ | |
5914 | && test $in_tree_ld_is_elf = yes; then | |
5915 | gcc_cv_ld_sol2_emulation=yes | |
5916 | fi | |
5917 | elif test x$gcc_cv_ld != x; then | |
5918 | if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \ | |
5919 | grep _sol2 > /dev/null; then | |
5920 | gcc_cv_ld_sol2_emulation=yes | |
5921 | fi | |
5922 | fi]) | |
5923 | if test x"$gcc_cv_ld_sol2_emulation" = xyes; then | |
5924 | AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1, | |
5925 | [Define if your linker supports the *_sol2 emulations.]) | |
5926 | fi | |
5927 | ||
b6bcc48f | 5928 | AC_CACHE_CHECK(linker --sysroot support, |
5929 | gcc_cv_ld_sysroot, | |
5930 | [gcc_cv_ld_sysroot=no | |
5931 | if test $in_tree_ld = yes ; then | |
5932 | if test "$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 | 5933 | gcc_cv_ld_sysroot=yes |
b6bcc48f | 5934 | fi |
5935 | elif test x$gcc_cv_ld != x; then | |
f50c2ca3 | 5936 | if $gcc_cv_ld --help 2>&1 | grep sysroot > /dev/null; then |
b6bcc48f | 5937 | gcc_cv_ld_sysroot=yes |
5938 | fi | |
5939 | fi]) | |
5940 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
5941 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
5942 | [Define if your linker supports --sysroot.]) | |
5943 | fi | |
5944 | ||
ba24ad38 | 5945 | case $target in |
5946 | *-*-solaris2*) | |
5947 | # Check for system-provided CRTs on Solaris 11.x and Solaris 12. | |
5948 | AC_CACHE_CHECK([system-provided CRTs on Solaris], | |
5949 | gcc_cv_solaris_crts, | |
5950 | [gcc_cv_solaris_crts=no | |
5951 | if test x$host != x$target; then | |
5952 | if test "x$with_sysroot" = xyes; then | |
5953 | target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root" | |
5954 | else | |
5955 | target_sysroot="${with_sysroot}" | |
5956 | fi | |
5957 | fi | |
5958 | target_libdir="$target_sysroot/usr/lib" | |
5959 | # At the time they were added, gcrt1.o became a symlink for backwards | |
5960 | # compatibility on x86, while crt1.o was added on sparc, so check for that. | |
5961 | case $target in | |
5962 | i?86-*-solaris2* | x86_64-*-solaris2*) | |
5963 | if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5964 | ;; | |
5965 | sparc*-*-solaris2*) | |
5966 | if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi | |
5967 | ;; | |
5968 | esac]) | |
5969 | ;; | |
5970 | esac | |
5971 | if test x$gcc_cv_solaris_crts = xyes; then | |
5972 | AC_DEFINE(HAVE_SOLARIS_CRTS, 1, | |
5973 | [Define if the system-provided CRTs are present on Solaris.]) | |
5974 | fi | |
5975 | ||
9815bd97 | 5976 | AC_ARG_ENABLE(libssp, |
5977 | [AS_HELP_STRING([--enable-libssp], [enable linking against libssp])], | |
5978 | [case "${enableval}" in | |
5979 | yes|no) | |
5980 | ;; | |
5981 | *) | |
5982 | AC_MSG_ERROR([unknown libssp setting $enableval]) | |
5983 | ;; | |
5984 | esac], []) | |
5985 | ||
0d55f4d0 | 5986 | # Test for stack protector support in target C library. |
66740228 | 5987 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
9815bd97 | 5988 | gcc_cv_libc_provides_ssp, |
5989 | [gcc_cv_libc_provides_ssp=no | |
5990 | if test "x$enable_libssp" = "xno"; then | |
5991 | gcc_cv_libc_provides_ssp=yes | |
5992 | elif test "x$enable_libssp" = "xyes"; then | |
5993 | gcc_cv_libc_provides_ssp=no | |
5994 | else | |
66740228 | 5995 | case "$target" in |
a9173cea | 5996 | *-*-musl*) |
5997 | # All versions of musl provide stack protector | |
5998 | gcc_cv_libc_provides_ssp=yes;; | |
79573034 | 5999 | *-*-linux* | *-*-kfreebsd*-gnu) |
4543a554 | 6000 | # glibc 2.4 and later provides __stack_chk_fail and |
0d55f4d0 | 6001 | # either __stack_chk_guard, or TLS access to stack guard canary. |
4543a554 | 6002 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [ |
6003 | [if test -f $target_header_dir/features.h \ | |
47cbc7da | 6004 | && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ |
bdd793b2 | 6005 | $target_header_dir/features.h > /dev/null; then |
4543a554 | 6006 | if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
bdd793b2 | 6007 | $target_header_dir/features.h > /dev/null && \ |
6008 | test -f $target_header_dir/bits/uClibc_config.h && \ | |
47cbc7da | 6009 | $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ |
bdd793b2 | 6010 | $target_header_dir/bits/uClibc_config.h > /dev/null; then |
e214b635 | 6011 | gcc_cv_libc_provides_ssp=yes |
0d55f4d0 | 6012 | fi |
e54ce707 | 6013 | # all versions of Bionic support stack protector |
6014 | elif test -f $target_header_dir/sys/cdefs.h \ | |
6015 | && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \ | |
6016 | $target_header_dir/sys/cdefs.h > /dev/null; then | |
6017 | gcc_cv_libc_provides_ssp=yes | |
4543a554 | 6018 | fi]]) |
66740228 | 6019 | ;; |
75bfea25 | 6020 | *-*-gnu*) |
6021 | # Avoid complicated tests (see | |
6022 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
6023 | # simply assert that glibc does provide this, which is true for all | |
6024 | # realistically usable GNU/Hurd configurations. | |
a9173cea | 6025 | # All supported versions of musl provide it as well |
75bfea25 | 6026 | gcc_cv_libc_provides_ssp=yes;; |
26271dee | 6027 | *-*-darwin* | *-*-freebsd* | *-*-netbsd*) |
66740228 | 6028 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
6029 | [echo "no __stack_chk_fail on this target"]) | |
6030 | ;; | |
9815bd97 | 6031 | *) gcc_cv_libc_provides_ssp=no ;; |
6032 | esac | |
6033 | fi]) | |
66740228 | 6034 | |
0d55f4d0 | 6035 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
6036 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
6037 | [Define if your target C library provides stack protector support]) | |
6038 | fi | |
6039 | ||
6957b94e | 6040 | # Check whether --enable-default-ssp was given. |
6041 | AC_ARG_ENABLE(default-ssp, | |
6042 | [AS_HELP_STRING([--enable-default-ssp], | |
6043 | [enable Stack Smashing Protection as default])],[ | |
6044 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
6045 | case "$target" in | |
6046 | ia64*-*-*) enable_default_ssp=no ;; | |
6047 | *) enable_default_ssp=$enableval ;; | |
6048 | esac | |
6049 | else | |
6050 | enable_default_ssp=no | |
6051 | fi], | |
6052 | enable_default_ssp=no) | |
605b00ec | 6053 | if test x$enable_default_ssp = xyes ; then |
6957b94e | 6054 | AC_DEFINE(ENABLE_DEFAULT_SSP, 1, |
6055 | [Define if your target supports default stack protector and it is enabled.]) | |
6056 | fi | |
6057 | AC_SUBST([enable_default_ssp]) | |
6058 | ||
f77bcf96 | 6059 | # Test for <sys/sdt.h> on the target. |
6060 | GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H]) | |
6061 | AC_MSG_CHECKING(sys/sdt.h in the target C library) | |
6062 | have_sys_sdt_h=no | |
6063 | if test -f $target_header_dir/sys/sdt.h; then | |
28c54e7d | 6064 | have_sys_sdt_h=yes |
f77bcf96 | 6065 | AC_DEFINE(HAVE_SYS_SDT_H, 1, |
6066 | [Define if your target C library provides sys/sdt.h]) | |
6067 | fi | |
6068 | AC_MSG_RESULT($have_sys_sdt_h) | |
6069 | ||
2dde0cc6 | 6070 | # Check if TFmode long double should be used by default or not. |
6071 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
6072 | # and later they can use TFmode. | |
6073 | case "$target" in | |
8c3bf67d | 6074 | powerpc*-*-linux* | \ |
2dde0cc6 | 6075 | sparc*-*-linux* | \ |
6076 | s390*-*-linux* | \ | |
6077 | alpha*-*-linux*) | |
6078 | AC_ARG_WITH(long-double-128, | |
bc6c87c1 | 6079 | [AS_HELP_STRING([--with-long-double-128], |
6080 | [use 128-bit long double by default])], | |
2dde0cc6 | 6081 | gcc_cv_target_ldbl128="$with_long_double_128", |
4543a554 | 6082 | [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [ |
6083 | [gcc_cv_target_ldbl128=no | |
2dde0cc6 | 6084 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
bdd793b2 | 6085 | $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \ |
dfce740a | 6086 | && gcc_cv_target_ldbl128=yes |
4543a554 | 6087 | ]])]) |
2dde0cc6 | 6088 | ;; |
6089 | esac | |
6090 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
6091 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
6092 | [Define if TFmode long double should be the default]) | |
6093 | fi | |
6094 | ||
b95c28c7 | 6095 | # Check if TFmode long double target should use the IBM extended double or IEEE |
6096 | # 128-bit floating point formats if long doubles are 128-bits long. The long | |
6097 | # double type can only be switched on powerpc64 bit Linux systems where VSX is | |
6098 | # supported. Other PowerPC systems do not build the IEEE 128-bit emulator in | |
6099 | # libgcc. | |
6100 | AC_ARG_WITH([long-double-format], | |
6101 | [AS_HELP_STRING([--with-long-double-format={ieee,ibm}] | |
6102 | [Specify whether PowerPC long double uses IEEE or IBM format])],[ | |
6103 | case "$target:$with_long_double_format" in | |
6104 | powerpc64le-*-linux*:ieee | powerpc64le-*-linux*:ibm) | |
6105 | : | |
6106 | ;; | |
6107 | powerpc64-*-linux*:ieee | powerpc64-*-linux*:ibm) | |
6108 | # IEEE 128-bit emulation is only built on 64-bit VSX Linux systems | |
6109 | case "$with_cpu" in | |
6110 | power7 | power8 | power9 | power1*) | |
6111 | : | |
6112 | ;; | |
6113 | *) | |
6114 | AC_MSG_ERROR([Configuration option --with-long-double-format is only \ | |
6115 | supported if the default cpu is power7 or newer]) | |
6116 | with_long_double_format="" | |
6117 | ;; | |
6118 | esac | |
6119 | ;; | |
6120 | xpowerpc64*-*-linux*:*) | |
6121 | AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee]) | |
6122 | with_long_double_format="" | |
6123 | ;; | |
6124 | *) | |
6125 | AC_MSG_ERROR([Configure option --with-long-double-format is only supported \ | |
6126 | on 64-bit PowerPC VSX Linux systems]) | |
6127 | with_long_double_format="" | |
6128 | ;; | |
6129 | esac], | |
6130 | []) | |
6131 | ||
62752e71 | 6132 | # Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP |
6133 | # values in the TCB. Currently, only GLIBC 2.23 and later support this. | |
6134 | gcc_cv_libc_provides_hwcap_in_tcb=no | |
6135 | case "$target" in | |
6136 | powerpc*-*-linux*) | |
6137 | GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], ) | |
6138 | ;; | |
6139 | esac | |
6140 | if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then | |
6141 | AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1, | |
6142 | [Define if your target C Library provides the AT_HWCAP value in the TCB]) | |
6143 | fi | |
6144 | ||
bdd793b2 | 6145 | AC_MSG_CHECKING(dl_iterate_phdr in target C library) |
6146 | gcc_cv_target_dl_iterate_phdr=unknown | |
6147 | case "$target" in | |
0fd03648 | 6148 | *-*-solaris2*) |
bdd793b2 | 6149 | # <link.h> needs both a dl_iterate_phdr declaration and support for |
6150 | # compilation with largefile support. | |
6151 | if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \ | |
6152 | && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then | |
6153 | gcc_cv_target_dl_iterate_phdr=yes | |
6154 | else | |
6155 | gcc_cv_target_dl_iterate_phdr=no | |
6156 | fi | |
6157 | ;; | |
463553db | 6158 | *-*-dragonfly* | *-*-freebsd*) |
6159 | if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then | |
6160 | gcc_cv_target_dl_iterate_phdr=yes | |
6161 | else | |
6162 | gcc_cv_target_dl_iterate_phdr=no | |
6163 | fi | |
6164 | ;; | |
a9173cea | 6165 | *-linux-musl*) |
6166 | gcc_cv_target_dl_iterate_phdr=yes | |
6167 | ;; | |
bdd793b2 | 6168 | esac |
6169 | GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR]) | |
6170 | if test x$gcc_cv_target_dl_iterate_phdr = xyes; then | |
6171 | AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1, | |
6172 | [Define if your target C library provides the `dl_iterate_phdr' function.]) | |
6173 | fi | |
6174 | AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr) | |
6175 | ||
5cc13354 | 6176 | # We no longer support different GC mechanisms. Emit an error if |
6177 | # the user configures with --with-gc. | |
772580ce | 6178 | AC_ARG_WITH(gc, |
bc6c87c1 | 6179 | [AS_HELP_STRING([--with-gc={page,zone}], |
5cc13354 | 6180 | [this option is not supported anymore. It used to choose |
6181 | the garbage collection mechanism to use with the compiler])], | |
6182 | [AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])], | |
6183 | []) | |
772580ce | 6184 | |
7ab76cec | 6185 | # Libraries to use on the host. This will normally be set by the top |
6186 | # level Makefile. Here we simply capture the value for our Makefile. | |
6187 | if test -z "${HOST_LIBS+set}"; then | |
6188 | HOST_LIBS= | |
6189 | fi | |
6190 | AC_SUBST(HOST_LIBS) | |
6191 | ||
add841d2 | 6192 | # Use the system's zlib library. |
92827dbf | 6193 | AM_ZLIB |
add841d2 | 6194 | |
c5ab9ed2 | 6195 | dnl Very limited version of automake's enable-maintainer-mode |
6196 | ||
6197 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
6198 | dnl maintainer-mode is disabled by default | |
6199 | AC_ARG_ENABLE(maintainer-mode, | |
bc6c87c1 | 6200 | [AS_HELP_STRING([--enable-maintainer-mode], |
6201 | [enable make rules and dependencies not useful | |
6202 | (and sometimes confusing) to the casual installer])], | |
c5ab9ed2 | 6203 | maintainer_mode=$enableval, |
6204 | maintainer_mode=no) | |
6205 | ||
6206 | AC_MSG_RESULT($maintainer_mode) | |
6207 | ||
6208 | if test "$maintainer_mode" = "yes"; then | |
6209 | MAINT='' | |
6210 | else | |
6211 | MAINT='#' | |
6212 | fi | |
6213 | AC_SUBST(MAINT)dnl | |
6214 | ||
be5f9e46 | 6215 | dnl Whether to prevent multiple front-ends from linking at the same time |
6216 | ||
6217 | AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once]) | |
6218 | AC_ARG_ENABLE(link-mutex, | |
6219 | [AS_HELP_STRING([--enable-link-mutex], | |
6220 | [avoid linking multiple front-ends at once to avoid thrashing | |
6221 | on the build machine])], | |
6222 | do_link_mutex=$enableval, | |
6223 | do_link_mutex=no) | |
6224 | AC_MSG_RESULT($do_link_mutex) | |
6225 | ||
6226 | if test "$do_link_mutex" = "yes"; then | |
6227 | DO_LINK_MUTEX=true | |
6228 | else | |
6229 | DO_LINK_MUTEX=false | |
6230 | fi | |
6231 | AC_SUBST(DO_LINK_MUTEX) | |
6232 | ||
d8a2ca58 | 6233 | # -------------- |
6234 | # Language hooks | |
6235 | # -------------- | |
6236 | ||
a4ac0141 | 6237 | # Make empty files to contain the specs and options for each language. |
6238 | # Then add #include lines to for a compiler that has specs and/or options. | |
6239 | ||
26526d23 | 6240 | subdirs= |
3272db82 | 6241 | lang_opt_files= |
a4ac0141 | 6242 | lang_specs_files= |
c3cc26e1 | 6243 | lang_tree_files= |
a4ac0141 | 6244 | # These (without "all_") are set in each config-lang.in. |
6245 | # `language' must be a single word so is spelled singularly. | |
6246 | all_languages= | |
a4ac0141 | 6247 | all_compilers= |
210263ee | 6248 | all_outputs='Makefile' |
a4ac0141 | 6249 | # List of language makefile fragments. |
a455468e | 6250 | all_lang_makefrags= |
570af75a | 6251 | # Additional files for gengtype |
eb1bd38b | 6252 | all_gtfiles="$target_gtfiles" |
a4ac0141 | 6253 | |
26526d23 | 6254 | # These are the languages that are set in --enable-languages, |
6255 | # and are available in the GCC tree. | |
6256 | all_selected_languages= | |
6257 | ||
a4ac0141 | 6258 | # Add the language fragments. |
6259 | # Languages are added via two mechanisms. Some information must be | |
6260 | # recorded in makefile variables, these are defined in config-lang.in. | |
6261 | # We accumulate them and plug them into the main Makefile. | |
6262 | # The other mechanism is a set of hooks for each of the main targets | |
6263 | # like `clean', `install', etc. | |
6264 | ||
a4ac0141 | 6265 | language_hooks="Make-hooks" |
6266 | ||
26526d23 | 6267 | for lang in ${srcdir}/*/config-lang.in |
a4ac0141 | 6268 | do |
26526d23 | 6269 | changequote(,)dnl |
5dee13c2 | 6270 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
6271 | ||
26526d23 | 6272 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
6273 | if test "x$lang_alias" = x | |
6274 | then | |
6275 | echo "$lang doesn't set \$language." 1>&2 | |
6276 | exit 1 | |
6277 | fi | |
6278 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
6279 | subdirs="$subdirs $subdir" | |
de4e1ab6 | 6280 | |
6281 | # $gcc_subdir is where the gcc integration files are to be found | |
6282 | # for a language, both for internal compiler purposes (compiler | |
6283 | # sources implementing front-end to GCC tree converters), and for | |
6284 | # build infrastructure purposes (Make-lang.in, etc.) | |
6285 | # | |
6286 | # This will be <subdir> (relative to $srcdir) if a line like | |
6287 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
6288 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
6289 | # otherwise. | |
6290 | # | |
6291 | # Except for the language alias (fetched above), the regular | |
6292 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
6293 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
6294 | # only this and the language alias. | |
6295 | ||
6296 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
6297 | if [ "$gcc_subdir" = "" ]; then | |
6298 | gcc_subdir="$subdir" | |
6299 | fi | |
6300 | ||
26526d23 | 6301 | case ",$enable_languages," in |
6302 | *,$lang_alias,*) | |
6303 | all_selected_languages="$all_selected_languages $lang_alias" | |
de4e1ab6 | 6304 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
6305 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
26526d23 | 6306 | fi |
6307 | ;; | |
6308 | esac | |
6309 | changequote([,])dnl | |
6310 | ||
26526d23 | 6311 | language= |
6312 | boot_language= | |
6313 | compilers= | |
26526d23 | 6314 | outputs= |
6315 | gtfiles= | |
5dee13c2 | 6316 | subdir_requires= |
de4e1ab6 | 6317 | . ${srcdir}/$gcc_subdir/config-lang.in |
26526d23 | 6318 | if test "x$language" = x |
6319 | then | |
de4e1ab6 | 6320 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
26526d23 | 6321 | exit 1 |
6322 | fi | |
5dee13c2 | 6323 | |
6324 | ok=: | |
6325 | case ",$enable_languages," in | |
6326 | *,$lang_alias,*) ;; | |
6327 | *) | |
6328 | for i in $subdir_requires; do | |
3891e7d9 | 6329 | test -f "${srcdir}/$i/config-lang.in" && continue |
5dee13c2 | 6330 | ok=false |
6331 | break | |
6332 | done | |
6333 | ;; | |
6334 | esac | |
6335 | $ok || continue | |
6336 | ||
de4e1ab6 | 6337 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
6338 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
6339 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
755fa783 | 6340 | all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt" |
5dee13c2 | 6341 | fi |
de4e1ab6 | 6342 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
6343 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
5dee13c2 | 6344 | fi |
26526d23 | 6345 | all_languages="$all_languages $language" |
26526d23 | 6346 | all_compilers="$all_compilers $compilers" |
26526d23 | 6347 | all_outputs="$all_outputs $outputs" |
570af75a | 6348 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
7bfefa9d | 6349 | case ",$enable_languages," in |
6350 | *,lto,*) | |
6351 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
6352 | enable_lto=yes | |
6353 | AC_SUBST(enable_lto) | |
6354 | ;; | |
6355 | *) ;; | |
6356 | esac | |
a4ac0141 | 6357 | done |
6358 | ||
21fa82cb | 6359 | check_languages= |
26526d23 | 6360 | for language in $all_selected_languages |
21fa82cb | 6361 | do |
26526d23 | 6362 | check_languages="$check_languages check-$language" |
21fa82cb | 6363 | done |
6364 | ||
bdb69048 | 6365 | selftest_languages= |
6366 | for language in $all_selected_languages | |
6367 | do | |
6368 | selftest_languages="$selftest_languages selftest-$language" | |
6369 | done | |
6370 | ||
d5cd09c5 | 6371 | # We link each language in with a set of hooks, reached indirectly via |
26526d23 | 6372 | # lang.${target}. Only do so for selected languages. |
a4ac0141 | 6373 | |
6374 | rm -f Make-hooks | |
6375 | touch Make-hooks | |
ae6555f9 | 6376 | target_list="all.cross start.encap rest.encap tags \ |
fb433b0b | 6377 | install-common install-man install-info install-pdf install-html dvi \ |
6378 | pdf html uninstall info man srcextra srcman srcinfo \ | |
c02b6f4e | 6379 | mostlyclean clean distclean maintainer-clean install-plugin" |
26526d23 | 6380 | |
a4ac0141 | 6381 | for t in $target_list |
6382 | do | |
6383 | x= | |
26526d23 | 6384 | for lang in $all_selected_languages |
a4ac0141 | 6385 | do |
26526d23 | 6386 | x="$x $lang.$t" |
a4ac0141 | 6387 | done |
6388 | echo "lang.$t: $x" >> Make-hooks | |
6389 | done | |
6390 | ||
755fa783 | 6391 | # -------- |
6392 | # Option include files | |
6393 | # -------- | |
6394 | ||
6395 | ${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk | |
6396 | option_includes="option-includes.mk" | |
6397 | AC_SUBST_FILE(option_includes) | |
6398 | ||
d8a2ca58 | 6399 | # -------- |
6400 | # UNSORTED | |
6401 | # -------- | |
6402 | ||
49d87238 | 6403 | # Create .gdbinit. |
80a1cc00 | 6404 | |
49d87238 | 6405 | echo "dir ." > .gdbinit |
6406 | echo "dir ${srcdir}" >> .gdbinit | |
6407 | if test x$gdb_needs_out_file_path = xyes | |
6408 | then | |
6409 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
6410 | fi | |
6411 | if test "x$subdirs" != x; then | |
6412 | for s in $subdirs | |
6413 | do | |
6414 | echo "dir ${srcdir}/$s" >> .gdbinit | |
6415 | done | |
80a1cc00 | 6416 | fi |
49d87238 | 6417 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
b86afe72 | 6418 | echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit |
80a1cc00 | 6419 | |
a31beac3 | 6420 | # Put a breakpoint on __asan_report_error to help with debugging buffer |
6421 | # overflow. | |
6422 | case "$CFLAGS" in | |
6423 | *-fsanitize=address*) | |
6424 | echo "source ${srcdir}/gdbasan.in" >> .gdbinit | |
6425 | ;; | |
6426 | esac | |
6427 | ||
fc5f9e0c | 6428 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
f22b529a | 6429 | AC_SUBST(gcc_tooldir) |
066520ea | 6430 | AC_SUBST(dollar) |
f22b529a | 6431 | |
074386b8 | 6432 | # Find a directory in which to install a shared libgcc. |
6433 | ||
6434 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
bc6c87c1 | 6435 | [AS_HELP_STRING([--enable-version-specific-runtime-libs], |
6436 | [specify that runtime libraries should be | |
6437 | installed in a compiler-specific directory])]) | |
074386b8 | 6438 | |
01dc27ef | 6439 | # Substitute configuration variables |
6440 | AC_SUBST(subdirs) | |
776c30b8 | 6441 | AC_SUBST(srcdir) |
01dc27ef | 6442 | AC_SUBST(all_compilers) |
1f3233d1 | 6443 | AC_SUBST(all_gtfiles) |
a455468e | 6444 | AC_SUBST(all_lang_makefrags) |
434bb88d | 6445 | AC_SUBST(all_languages) |
26526d23 | 6446 | AC_SUBST(all_selected_languages) |
434bb88d | 6447 | AC_SUBST(build_exeext) |
6448 | AC_SUBST(build_install_headers_dir) | |
6449 | AC_SUBST(build_xm_file_list) | |
4dcab8b7 | 6450 | AC_SUBST(build_xm_include_list) |
83b8e55b | 6451 | AC_SUBST(build_xm_defines) |
fbf9447e | 6452 | AC_SUBST(build_file_translate) |
21fa82cb | 6453 | AC_SUBST(check_languages) |
bdb69048 | 6454 | AC_SUBST(selftest_languages) |
434bb88d | 6455 | AC_SUBST(cpp_install_dir) |
a455468e | 6456 | AC_SUBST(xmake_file) |
6457 | AC_SUBST(tmake_file) | |
f555bf81 | 6458 | AC_SUBST(TM_ENDIAN_CONFIG) |
6459 | AC_SUBST(TM_MULTILIB_CONFIG) | |
6460 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
69eb04f7 | 6461 | AC_SUBST(extra_gcc_objs) |
ac0366be | 6462 | AC_SUBST(user_headers_inc_next_pre) |
6463 | AC_SUBST(user_headers_inc_next_post) | |
434bb88d | 6464 | AC_SUBST(extra_headers_list) |
01dc27ef | 6465 | AC_SUBST(extra_objs) |
434bb88d | 6466 | AC_SUBST(extra_programs) |
434bb88d | 6467 | AC_SUBST(float_h_file) |
9371935c | 6468 | AC_SUBST(gcc_config_arguments) |
434bb88d | 6469 | AC_SUBST(gcc_gxx_include_dir) |
36ddd5fe | 6470 | AC_SUBST(gcc_gxx_include_dir_add_sysroot) |
434bb88d | 6471 | AC_SUBST(host_exeext) |
01dc27ef | 6472 | AC_SUBST(host_xm_file_list) |
4dcab8b7 | 6473 | AC_SUBST(host_xm_include_list) |
83b8e55b | 6474 | AC_SUBST(host_xm_defines) |
b197fbcf | 6475 | AC_SUBST(out_host_hook_obj) |
434bb88d | 6476 | AC_SUBST(install) |
3272db82 | 6477 | AC_SUBST(lang_opt_files) |
434bb88d | 6478 | AC_SUBST(lang_specs_files) |
c3cc26e1 | 6479 | AC_SUBST(lang_tree_files) |
01dc27ef | 6480 | AC_SUBST(local_prefix) |
434bb88d | 6481 | AC_SUBST(md_file) |
6482 | AC_SUBST(objc_boehm_gc) | |
6483 | AC_SUBST(out_file) | |
6484 | AC_SUBST(out_object_file) | |
3e87b980 | 6485 | AC_SUBST(common_out_file) |
6486 | AC_SUBST(common_out_object_file) | |
434bb88d | 6487 | AC_SUBST(tm_file_list) |
4dcab8b7 | 6488 | AC_SUBST(tm_include_list) |
8d4f8d46 | 6489 | AC_SUBST(tm_defines) |
83b8e55b | 6490 | AC_SUBST(tm_p_file_list) |
4dcab8b7 | 6491 | AC_SUBST(tm_p_include_list) |
03385ed3 | 6492 | AC_SUBST(tm_d_file_list) |
6493 | AC_SUBST(tm_d_include_list) | |
4dcab8b7 | 6494 | AC_SUBST(xm_file_list) |
6495 | AC_SUBST(xm_include_list) | |
8b24e546 | 6496 | AC_SUBST(xm_defines) |
f3449a3c | 6497 | AC_SUBST(use_gcc_stdint) |
8daa9e98 | 6498 | AC_SUBST(c_target_objs) |
6499 | AC_SUBST(cxx_target_objs) | |
32006f36 | 6500 | AC_SUBST(fortran_target_objs) |
03385ed3 | 6501 | AC_SUBST(d_target_objs) |
83b8e55b | 6502 | AC_SUBST(target_cpu_default) |
01dc27ef | 6503 | |
01dc27ef | 6504 | AC_SUBST_FILE(language_hooks) |
6505 | ||
ba4dfdb7 | 6506 | # Echo link setup. |
6507 | if test x${build} = x${host} ; then | |
6508 | if test x${host} = x${target} ; then | |
6509 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
6510 | else | |
6511 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
6512 | echo " from ${host} to ${target}." 1>&2 | |
6513 | fi | |
01dc27ef | 6514 | else |
ba4dfdb7 | 6515 | if test x${host} = x${target} ; then |
6516 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
6517 | echo " for ${target}." 1>&2 | |
6518 | else | |
6519 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
6520 | echo " from ${host} to ${target}." 1>&2 | |
6521 | fi | |
01dc27ef | 6522 | fi |
6523 | ||
4ee9c684 | 6524 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
6525 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
6526 | ||
71130ef8 | 6527 | AC_ARG_VAR(ISLLIBS,[How to link isl]) |
6528 | AC_ARG_VAR(ISLINC,[How to find isl include files]) | |
429cca51 | 6529 | if test "x${ISLLIBS}" != "x" ; then |
6530 | AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.]) | |
6531 | fi | |
255b6be7 | 6532 | |
ab103e33 | 6533 | GCC_ENABLE_PLUGINS |
9227b6fc | 6534 | AC_SUBST(pluginlibs) |
6535 | AC_SUBST(enable_plugin) | |
6536 | if test x"$enable_plugin" = x"yes"; then | |
6537 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
6538 | fi | |
6539 | ||
d9d975ae | 6540 | |
2bd17377 | 6541 | # Enable --enable-host-shared |
6542 | AC_ARG_ENABLE(host-shared, | |
6543 | [AS_HELP_STRING([--enable-host-shared], | |
6544 | [build host code as shared libraries])], | |
6545 | [PICFLAG=-fPIC], [PICFLAG=]) | |
6546 | AC_SUBST(enable_host_shared) | |
6547 | AC_SUBST(PICFLAG) | |
6548 | ||
6549 | ||
d9d975ae | 6550 | AC_ARG_ENABLE(libquadmath-support, |
6551 | [AS_HELP_STRING([--disable-libquadmath-support], | |
6552 | [disable libquadmath support for Fortran])], | |
6553 | ENABLE_LIBQUADMATH_SUPPORT=$enableval, | |
6554 | ENABLE_LIBQUADMATH_SUPPORT=yes) | |
6555 | if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then | |
6556 | AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1, | |
6557 | [Define to 1 to enable libquadmath support]) | |
6558 | fi | |
6559 | ||
6560 | ||
3cb9bbfa | 6561 | # Specify what hash style to use by default. |
6562 | AC_ARG_WITH([linker-hash-style], | |
6563 | [AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}], | |
6564 | [specify the linker hash style])], | |
6565 | [case x"$withval" in | |
6566 | xsysv) | |
6567 | LINKER_HASH_STYLE=sysv | |
6568 | ;; | |
6569 | xgnu) | |
6570 | LINKER_HASH_STYLE=gnu | |
6571 | ;; | |
6572 | xboth) | |
6573 | LINKER_HASH_STYLE=both | |
6574 | ;; | |
6575 | *) | |
6576 | AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style]) | |
6577 | ;; | |
6578 | esac], | |
6579 | [LINKER_HASH_STYLE='']) | |
6580 | if test x"${LINKER_HASH_STYLE}" != x; then | |
6581 | AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE", | |
6582 | [The linker hash style]) | |
6583 | fi | |
6584 | ||
809ccc6c | 6585 | # Specify what should be the default of -fdiagnostics-color option. |
6586 | AC_ARG_WITH([diagnostics-color], | |
6587 | [AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}], | |
6588 | [specify the default of -fdiagnostics-color option | |
6589 | auto-if-env stands for -fdiagnostics-color=auto if | |
6590 | GCC_COLOR environment variable is present and | |
6591 | -fdiagnostics-color=never otherwise])], | |
6592 | [case x"$withval" in | |
6593 | xnever) | |
6594 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO | |
6595 | ;; | |
6596 | xauto) | |
6597 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO | |
6598 | ;; | |
6599 | xauto-if-env) | |
6600 | DIAGNOSTICS_COLOR_DEFAULT=-1 | |
6601 | ;; | |
6602 | xalways) | |
6603 | DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES | |
6604 | ;; | |
6605 | *) | |
6606 | AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color]) | |
6607 | ;; | |
6608 | esac], | |
6609 | [DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO]) | |
6610 | AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT, | |
6611 | [The default for -fdiagnostics-color option]) | |
6612 | ||
863e76f9 | 6613 | # Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit |
6614 | # of jit/jit-playback.c. | |
124c259e | 6615 | gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"` |
6616 | echo "gcc_driver_version: ${gcc_driver_version}" | |
863e76f9 | 6617 | cat > gcc-driver-name.h <<EOF |
124c259e | 6618 | #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}" |
863e76f9 | 6619 | EOF |
6620 | ||
e9abca4f | 6621 | # Check whether --enable-default-pie was given. |
6622 | AC_ARG_ENABLE(default-pie, | |
6623 | [AS_HELP_STRING([--enable-default-pie], | |
6624 | [enable Position Independent Executable as default])], | |
6625 | enable_default_pie=$enableval, | |
6626 | enable_default_pie=no) | |
605b00ec | 6627 | if test x$enable_default_pie = xyes ; then |
e9abca4f | 6628 | AC_DEFINE(ENABLE_DEFAULT_PIE, 1, |
6629 | [Define if your target supports default PIE and it is enabled.]) | |
6630 | fi | |
6631 | AC_SUBST([enable_default_pie]) | |
6632 | ||
6633 | # Check if -fno-PIE works. | |
6634 | AC_CACHE_CHECK([for -fno-PIE option], | |
6635 | [gcc_cv_c_no_fpie], | |
ba637bab | 6636 | [saved_CXXFLAGS="$CXXFLAGS" |
6637 | CXXFLAGS="$CXXFLAGS -fno-PIE" | |
f00f02a3 | 6638 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
e9abca4f | 6639 | [gcc_cv_c_no_fpie=yes], |
6640 | [gcc_cv_c_no_fpie=no]) | |
ba637bab | 6641 | CXXFLAGS="$saved_CXXFLAGS"]) |
e9abca4f | 6642 | if test "$gcc_cv_c_no_fpie" = "yes"; then |
6643 | NO_PIE_CFLAGS="-fno-PIE" | |
6644 | fi | |
6645 | AC_SUBST([NO_PIE_CFLAGS]) | |
6646 | ||
6647 | # Check if -no-pie works. | |
6648 | AC_CACHE_CHECK([for -no-pie option], | |
6649 | [gcc_cv_no_pie], | |
6650 | [saved_LDFLAGS="$LDFLAGS" | |
6651 | LDFLAGS="$LDFLAGS -no-pie" | |
f00f02a3 | 6652 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])], |
e9abca4f | 6653 | [gcc_cv_no_pie=yes], |
6654 | [gcc_cv_no_pie=no]) | |
6655 | LDFLAGS="$saved_LDFLAGS"]) | |
6656 | if test "$gcc_cv_no_pie" = "yes"; then | |
6657 | NO_PIE_FLAG="-no-pie" | |
6658 | fi | |
6659 | AC_SUBST([NO_PIE_FLAG]) | |
6660 | ||
3a1e60cb | 6661 | # Check linker supports '-z bndplt' |
6662 | ld_bndplt_support=no | |
6663 | AC_MSG_CHECKING(linker -z bndplt option) | |
6664 | if test x"$ld_is_gold" = xno; then | |
6665 | if test $in_tree_ld = yes ; then | |
6666 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6667 | ld_bndplt_support=yes | |
6668 | fi | |
6669 | elif test x$gcc_cv_ld != x; then | |
6670 | # Check if linker supports -a bndplt option | |
f50c2ca3 | 6671 | if $gcc_cv_ld --help 2>&1 | grep -- '-z bndplt' > /dev/null; then |
3a1e60cb | 6672 | ld_bndplt_support=yes |
6673 | fi | |
6674 | fi | |
6675 | fi | |
6676 | if test x"$ld_bndplt_support" = xyes; then | |
6677 | AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1, | |
6678 | [Define if your linker supports -z bndplt]) | |
6679 | fi | |
6680 | AC_MSG_RESULT($ld_bndplt_support) | |
6681 | ||
74e22921 | 6682 | # Check linker supports '--push-state'/'--pop-state' |
6683 | ld_pushpopstate_support=no | |
6684 | AC_MSG_CHECKING(linker --push-state/--pop-state options) | |
6685 | if test x"$ld_is_gold" = xno; then | |
6686 | if test $in_tree_ld = yes ; then | |
6687 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then | |
6688 | ld_pushpopstate_support=yes | |
6689 | fi | |
6690 | elif test x$gcc_cv_ld != x; then | |
6691 | # Check if linker supports --push-state/--pop-state options | |
f50c2ca3 | 6692 | if $gcc_cv_ld --help 2>&1 | grep -- '--push-state' > /dev/null; then |
74e22921 | 6693 | ld_pushpopstate_support=yes |
6694 | fi | |
6695 | fi | |
6696 | fi | |
6697 | if test x"$ld_pushpopstate_support" = xyes; then | |
6698 | AC_DEFINE(HAVE_LD_PUSHPOPSTATE_SUPPORT, 1, | |
6699 | [Define if your linker supports --push-state/--pop-state]) | |
6700 | fi | |
6701 | AC_MSG_RESULT($ld_pushpopstate_support) | |
6702 | ||
01dc27ef | 6703 | # Configure the subdirectories |
6704 | # AC_CONFIG_SUBDIRS($subdirs) | |
6705 | ||
6706 | # Create the Makefile | |
4fc83d8e | 6707 | # and configure language subdirectories |
1211e6bc | 6708 | AC_CONFIG_FILES($all_outputs) |
6709 | ||
6710 | AC_CONFIG_COMMANDS([default], | |
805483cf | 6711 | [ |
00ba4d3e | 6712 | case ${CONFIG_HEADERS} in |
6713 | *auto-host.h:config.in*) | |
6714 | echo > cstamp-h ;; | |
805483cf | 6715 | esac |
a455468e | 6716 | # Make sure all the subdirs exist. |
3e87b980 | 6717 | for d in $subdirs doc build common c-family |
a455468e | 6718 | do |
a455468e | 6719 | test -d $d || mkdir $d |
a455468e | 6720 | done |
a1a7e9d5 | 6721 | ], |
26be379c | 6722 | [subdirs='$subdirs']) |
1211e6bc | 6723 | AC_OUTPUT |
755fa783 | 6724 |