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ca9bc441 | 1 | # configure.ac for GCC |
46f18e7b RK |
2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
d5be1dd4 | 4 | # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
52c0e446 | 5 | # 2007, 2008, 2009 Free Software Foundation, Inc. |
46f18e7b | 6 | |
1322177d | 7 | #This file is part of GCC. |
46f18e7b | 8 | |
1322177d LB |
9 | #GCC is free software; you can redistribute it and/or modify it under |
10 | #the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 11 | #Software Foundation; either version 3, or (at your option) any later |
1322177d | 12 | #version. |
46f18e7b | 13 | |
1322177d LB |
14 | #GCC is distributed in the hope that it will be useful, but WITHOUT |
15 | #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | #for more details. | |
46f18e7b RK |
18 | |
19 | #You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
20 | #along with GCC; see the file COPYING3. If not see |
21 | #<http://www.gnu.org/licenses/>. | |
46f18e7b | 22 | |
34a86c2b NN |
23 | # -------------------------------- |
24 | # Initialization and sanity checks | |
25 | # -------------------------------- | |
26 | ||
8ab705be | 27 | AC_PREREQ(2.59) |
914c5af7 NN |
28 | AC_INIT |
29 | AC_CONFIG_SRCDIR(tree.c) | |
b7cb92ad | 30 | AC_CONFIG_HEADER(auto-host.h:config.in) |
cdcc6a01 | 31 | |
9f18db39 PB |
32 | gcc_version=`cat $srcdir/BASE-VER` |
33 | ||
34a86c2b | 34 | # Determine the host, build, and target systems |
914c5af7 NN |
35 | AC_CANONICAL_BUILD |
36 | AC_CANONICAL_HOST | |
37 | AC_CANONICAL_TARGET | |
34a86c2b | 38 | |
caa55b1e | 39 | # Determine the noncanonical target name, for directory use. |
392765bf | 40 | ACX_NONCANONICAL_TARGET |
caa55b1e | 41 | |
4665e56c NN |
42 | # Determine the target- and build-specific subdirectories |
43 | GCC_TOPLEV_SUBDIRS | |
44 | ||
34a86c2b NN |
45 | # Set program_transform_name |
46 | AC_ARG_PROGRAM | |
46f18e7b | 47 | |
75a39864 JL |
48 | # Check for bogus environment variables. |
49 | # Test if LIBRARY_PATH contains the notation for the current directory | |
50 | # since this would lead to problems installing/building glibc. | |
51 | # LIBRARY_PATH contains the current directory if one of the following | |
52 | # is true: | |
53 | # - one of the terminals (":" and ";") is the first or last sign | |
54 | # - two terminals occur directly after each other | |
55 | # - the path contains an element with a dot in it | |
56 | AC_MSG_CHECKING(LIBRARY_PATH variable) | |
57 | changequote(,)dnl | |
58 | case ${LIBRARY_PATH} in | |
59 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
60 | library_path_setting="contains current directory" | |
61 | ;; | |
62 | *) | |
63 | library_path_setting="ok" | |
64 | ;; | |
65 | esac | |
66 | changequote([,])dnl | |
67 | AC_MSG_RESULT($library_path_setting) | |
68 | if test "$library_path_setting" != "ok"; then | |
69 | AC_MSG_ERROR([ | |
70 | *** LIBRARY_PATH shouldn't contain the current directory when | |
079bd08e | 71 | *** building gcc. Please change the environment variable |
75a39864 JL |
72 | *** and run configure again.]) |
73 | fi | |
74 | ||
75 | # Test if GCC_EXEC_PREFIX contains the notation for the current directory | |
76 | # since this would lead to problems installing/building glibc. | |
77 | # GCC_EXEC_PREFIX contains the current directory if one of the following | |
78 | # is true: | |
79 | # - one of the terminals (":" and ";") is the first or last sign | |
80 | # - two terminals occur directly after each other | |
81 | # - the path contains an element with a dot in it | |
82 | AC_MSG_CHECKING(GCC_EXEC_PREFIX variable) | |
83 | changequote(,)dnl | |
84 | case ${GCC_EXEC_PREFIX} in | |
85 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
86 | gcc_exec_prefix_setting="contains current directory" | |
87 | ;; | |
88 | *) | |
89 | gcc_exec_prefix_setting="ok" | |
90 | ;; | |
91 | esac | |
92 | changequote([,])dnl | |
93 | AC_MSG_RESULT($gcc_exec_prefix_setting) | |
94 | if test "$gcc_exec_prefix_setting" != "ok"; then | |
95 | AC_MSG_ERROR([ | |
96 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
079bd08e | 97 | *** building gcc. Please change the environment variable |
75a39864 JL |
98 | *** and run configure again.]) |
99 | fi | |
100 | ||
34a86c2b NN |
101 | # ----------- |
102 | # Directories | |
103 | # ----------- | |
104 | ||
105 | # Specify the local prefix | |
106 | local_prefix= | |
107 | AC_ARG_WITH(local-prefix, | |
108 | [ --with-local-prefix=DIR specifies directory to put local include], | |
109 | [case "${withval}" in | |
110 | yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;; | |
111 | no) ;; | |
112 | *) local_prefix=$with_local_prefix ;; | |
113 | esac]) | |
114 | ||
115 | # Default local prefix if it is empty | |
116 | if test x$local_prefix = x; then | |
117 | local_prefix=/usr/local | |
118 | fi | |
119 | ||
120 | # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only | |
121 | # passed in by the toplevel make and thus we'd get different behavior | |
122 | # depending on where we built the sources. | |
123 | gcc_gxx_include_dir= | |
124 | # Specify the g++ header file directory | |
125 | AC_ARG_WITH(gxx-include-dir, | |
126 | [ --with-gxx-include-dir=DIR | |
127 | specifies directory to put g++ header files], | |
128 | [case "${withval}" in | |
129 | yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;; | |
130 | no) ;; | |
131 | *) gcc_gxx_include_dir=$with_gxx_include_dir ;; | |
132 | esac]) | |
133 | ||
0f57bf40 | 134 | # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. |
34a86c2b NN |
135 | if test x${gcc_gxx_include_dir} = x; then |
136 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
137 | gcc_gxx_include_dir='${libsubdir}/include/c++' | |
138 | else | |
0f57bf40 MM |
139 | libstdcxx_incdir='include/c++/$(version)' |
140 | if test x$host != x$target; then | |
141 | libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
142 | fi | |
15c723f3 | 143 | gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir" |
34a86c2b NN |
144 | fi |
145 | fi | |
146 | ||
147 | AC_ARG_WITH(cpp_install_dir, | |
148 | [ --with-cpp-install-dir=DIR | |
149 | install the user visible C preprocessor in DIR | |
150 | (relative to PREFIX) as well as PREFIX/bin], | |
151 | [if test x$withval = xyes; then | |
152 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
153 | elif test x$withval != xno; then | |
154 | cpp_install_dir=$withval | |
155 | fi]) | |
156 | ||
51b9ff45 KC |
157 | # We would like to our source tree to be readonly. However when releases or |
158 | # pre-releases are generated, the flex/bison generated files as well as the | |
159 | # various formats of manuals need to be included along with the rest of the | |
160 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
161 | # just that. | |
162 | ||
03787dfd KC |
163 | AC_MSG_CHECKING([whether to place generated files in the source directory]) |
164 | dnl generated-files-in-srcdir is disabled by default | |
165 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
166 | [ --enable-generated-files-in-srcdir | |
167 | put copies of generated files in source dir | |
168 | intended for creating source tarballs for users | |
169 | without texinfo bison or flex.], | |
170 | generated_files_in_srcdir=$enableval, | |
171 | generated_files_in_srcdir=no) | |
172 | ||
173 | AC_MSG_RESULT($generated_files_in_srcdir) | |
174 | ||
175 | if test "$generated_files_in_srcdir" = "yes"; then | |
176 | GENINSRC='' | |
03787dfd KC |
177 | else |
178 | GENINSRC='#' | |
03787dfd KC |
179 | fi |
180 | AC_SUBST(GENINSRC) | |
51b9ff45 | 181 | |
34a86c2b NN |
182 | # ------------------- |
183 | # Find default linker | |
184 | # ------------------- | |
46f18e7b RK |
185 | |
186 | # With GNU ld | |
187 | AC_ARG_WITH(gnu-ld, | |
188 | [ --with-gnu-ld arrange to work with GNU ld.], | |
df6faf79 JW |
189 | gnu_ld_flag="$with_gnu_ld", |
190 | gnu_ld_flag=no) | |
46f18e7b | 191 | |
ab339d62 AO |
192 | # With pre-defined ld |
193 | AC_ARG_WITH(ld, | |
e8bec136 | 194 | [ --with-ld arrange to use the specified ld (full pathname)], |
3ccc3a56 AO |
195 | DEFAULT_LINKER="$with_ld") |
196 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
197 | if test ! -x "$DEFAULT_LINKER"; then | |
99c012a8 | 198 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
e154a394 | 199 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
200 | gnu_ld_flag=yes |
201 | fi | |
119d24d1 KG |
202 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
203 | [Define to enable the use of a default linker.]) | |
ab339d62 AO |
204 | fi |
205 | ||
2091ff66 NF |
206 | gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi` |
207 | AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.]) | |
208 | ||
34a86c2b NN |
209 | AC_MSG_CHECKING([whether a default linker was specified]) |
210 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
211 | if test x"$gnu_ld_flag" = x"no"; then | |
212 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
213 | else | |
214 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
215 | fi | |
216 | else | |
217 | AC_MSG_RESULT(no) | |
218 | fi | |
219 | ||
d594623a L |
220 | # With demangler in GNU ld |
221 | AC_ARG_WITH(demangler-in-ld, | |
222 | [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
223 | demangler_in_ld="$with_demangler_in_ld", | |
224 | demangler_in_ld=no) | |
225 | ||
34a86c2b NN |
226 | # ---------------------- |
227 | # Find default assembler | |
228 | # ---------------------- | |
229 | ||
46f18e7b RK |
230 | # With GNU as |
231 | AC_ARG_WITH(gnu-as, | |
e8bec136 | 232 | [ --with-gnu-as arrange to work with GNU as], |
df6faf79 JW |
233 | gas_flag="$with_gnu_as", |
234 | gas_flag=no) | |
46f18e7b | 235 | |
ab339d62 | 236 | AC_ARG_WITH(as, |
e8bec136 | 237 | [ --with-as arrange to use the specified as (full pathname)], |
3ccc3a56 AO |
238 | DEFAULT_ASSEMBLER="$with_as") |
239 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
240 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
99c012a8 | 241 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
e154a394 | 242 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
243 | gas_flag=yes |
244 | fi | |
119d24d1 KG |
245 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
246 | [Define to enable the use of a default assembler.]) | |
3ccc3a56 | 247 | fi |
ab339d62 | 248 | |
dc60b775 CD |
249 | gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi` |
250 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.]) | |
251 | ||
34a86c2b NN |
252 | AC_MSG_CHECKING([whether a default assembler was specified]) |
253 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
254 | if test x"$gas_flag" = x"no"; then | |
255 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
4e88d51b | 256 | else |
34a86c2b | 257 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
4e88d51b | 258 | fi |
34a86c2b NN |
259 | else |
260 | AC_MSG_RESULT(no) | |
4e88d51b | 261 | fi |
46f18e7b | 262 | |
34a86c2b NN |
263 | # --------------- |
264 | # Find C compiler | |
265 | # --------------- | |
13c22933 | 266 | |
426ca3ca RO |
267 | # If a non-executable a.out is present (e.g. created by GNU as above even if |
268 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
269 | # file, even when creating an executable, so an execution test fails. | |
270 | # Remove possible default executable files to avoid this. | |
271 | # | |
272 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
273 | # Autoconf includes it. | |
274 | rm -f a.out a.exe b.out | |
275 | ||
414d23ae HPN |
276 | # Find the native compiler |
277 | AC_PROG_CC | |
3b620440 | 278 | AM_PROG_CC_C_O |
00020c16 | 279 | AC_PROG_CXX |
3d4e720a ST |
280 | ACX_PROG_GNAT([-I"$srcdir"/ada]) |
281 | ||
414d23ae HPN |
282 | # autoconf is lame and doesn't give us any substitution variable for this. |
283 | if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then | |
284 | NO_MINUS_C_MINUS_O=yes | |
285 | else | |
286 | OUTPUT_OPTION='-o $@' | |
287 | fi | |
288 | AC_SUBST(NO_MINUS_C_MINUS_O) | |
289 | AC_SUBST(OUTPUT_OPTION) | |
290 | ||
ec6c7392 PB |
291 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer |
292 | # optimizations to be activated explicitly by the toplevel. | |
293 | case "$CC" in | |
294 | */prev-gcc/xgcc*) ;; | |
295 | *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;; | |
296 | esac | |
297 | AC_SUBST(CFLAGS) | |
298 | ||
73458fb7 NN |
299 | # ------------------------- |
300 | # Check C compiler features | |
301 | # ------------------------- | |
302 | ||
60d26958 | 303 | AC_USE_SYSTEM_EXTENSIONS |
34a86c2b NN |
304 | AC_PROG_CPP |
305 | AC_C_INLINE | |
34a86c2b | 306 | |
34a86c2b | 307 | # sizeof(char) is 1 by definition. |
bf3b7cd3 JD |
308 | AC_CHECK_SIZEOF(void *) |
309 | AC_CHECK_SIZEOF(short) | |
310 | AC_CHECK_SIZEOF(int) | |
311 | AC_CHECK_SIZEOF(long) | |
5ec1c5e6 KC |
312 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
313 | AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) | |
34a86c2b | 314 | |
34a86c2b NN |
315 | # --------------------- |
316 | # Warnings and checking | |
317 | # --------------------- | |
318 | ||
b5472e1d NN |
319 | # Check $CC warning features (if it's GCC). |
320 | # We want to use -pedantic, but we don't want warnings about | |
321 | # * 'long long' | |
322 | # * variadic macros | |
89a42ac8 | 323 | # * overlong strings |
b5472e1d NN |
324 | # So, we only use -pedantic if we can disable those warnings. |
325 | ||
f6e377f8 | 326 | ACX_PROG_CC_WARNING_OPTS( |
00020c16 | 327 | m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn]) |
f6e377f8 | 328 | ACX_PROG_CC_WARNING_OPTS( |
00020c16 ILT |
329 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])), |
330 | [c_loose_warn]) | |
331 | ACX_PROG_CC_WARNING_OPTS( | |
332 | m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn]) | |
333 | ACX_PROG_CC_WARNING_OPTS( | |
334 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
f6e377f8 | 335 | ACX_PROG_CC_WARNING_ALMOST_PEDANTIC( |
75c9cbe3 AS |
336 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
337 | [-Wno-overlength-strings])), [strict_warn]) | |
3bbd5a19 PB |
338 | ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
339 | ||
340 | # The above macros do nothing if the compiler is not GCC. However, the | |
00020c16 ILT |
341 | # Makefile has more goo to add other flags, so these variables are used |
342 | # to enable warnings only for GCC. | |
414d23ae | 343 | warn_cflags= |
00020c16 | 344 | warn_cxxflags= |
414d23ae HPN |
345 | if test "x$GCC" = "xyes"; then |
346 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
00020c16 | 347 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
414d23ae HPN |
348 | fi |
349 | AC_SUBST(warn_cflags) | |
00020c16 | 350 | AC_SUBST(warn_cxxflags) |
414d23ae | 351 | |
8b1f719a | 352 | # Enable expensive internal checks |
a1286ef5 ZW |
353 | is_release= |
354 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
355 | is_release=yes | |
356 | fi | |
dd859b8a | 357 | |
a494747c | 358 | AC_ARG_ENABLE(checking, |
f4524c9e ZW |
359 | [ --enable-checking[=LIST] |
360 | enable expensive run-time checks. With LIST, | |
361 | enable only specific categories of checks. | |
cdce5c16 | 362 | Categories are: yes,no,all,none,release. |
726a989a | 363 | Flags are: assert,df,fold,gc,gcac,gimple,misc, |
7e98624c | 364 | rtlflag,rtl,runtime,tree,valgrind,types.], |
e1bbfc5c NS |
365 | [ac_checking_flags="${enableval}"],[ |
366 | # Determine the default checks. | |
367 | if test x$is_release = x ; then | |
368 | ac_checking_flags=yes | |
369 | else | |
370 | ac_checking_flags=release | |
371 | fi]) | |
e1bbfc5c | 372 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
04c3028a | 373 | for check in release $ac_checking_flags |
e1bbfc5c NS |
374 | do |
375 | case $check in | |
cdce5c16 | 376 | # these set all the flags to specific states |
0d475361 | 377 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
cdce5c16 | 378 | ac_fold_checking= ; ac_gc_checking=1 ; |
726a989a | 379 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
232b67d9 | 380 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c | 381 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
1b24a790 | 382 | ac_types_checking=1 ;; |
3089f8b5 | 383 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
cdce5c16 | 384 | ac_fold_checking= ; ac_gc_checking= ; |
726a989a | 385 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
232b67d9 | 386 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
7e98624c RG |
387 | ac_tree_checking= ; ac_valgrind_checking= ; |
388 | ac_types_checking= ;; | |
3089f8b5 | 389 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
cdce5c16 | 390 | ac_fold_checking=1 ; ac_gc_checking=1 ; |
726a989a | 391 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
cdce5c16 | 392 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
7e98624c RG |
393 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
394 | ac_types_checking=1 ;; | |
3089f8b5 | 395 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
cdce5c16 | 396 | ac_fold_checking= ; ac_gc_checking= ; |
726a989a | 397 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
cdce5c16 | 398 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
7e98624c RG |
399 | ac_tree_checking= ; ac_valgrind_checking= ; |
400 | ac_types_checking= ;; | |
cdce5c16 | 401 | # these enable particular checks |
e1bbfc5c | 402 | assert) ac_assert_checking=1 ;; |
3089f8b5 | 403 | df) ac_df_checking=1 ;; |
e1bbfc5c NS |
404 | fold) ac_fold_checking=1 ;; |
405 | gc) ac_gc_checking=1 ;; | |
406 | gcac) ac_gc_always_collect=1 ;; | |
726a989a | 407 | gimple) ac_gimple_checking=1 ;; |
e1bbfc5c | 408 | misc) ac_checking=1 ;; |
e1bbfc5c | 409 | rtl) ac_rtl_checking=1 ;; |
cdce5c16 | 410 | rtlflag) ac_rtlflag_checking=1 ;; |
b53ef395 | 411 | runtime) ac_runtime_checking=1 ;; |
e1bbfc5c | 412 | tree) ac_tree_checking=1 ;; |
7e98624c | 413 | types) ac_types_checking=1 ;; |
cdce5c16 | 414 | valgrind) ac_valgrind_checking=1 ;; |
e1bbfc5c NS |
415 | *) AC_MSG_ERROR(unknown check category $check) ;; |
416 | esac | |
417 | done | |
418 | IFS="$ac_save_IFS" | |
419 | ||
204250d2 | 420 | nocommon_flag="" |
119d24d1 KG |
421 | if test x$ac_checking != x ; then |
422 | AC_DEFINE(ENABLE_CHECKING, 1, | |
423 | [Define if you want more run-time sanity checks. This one gets a grab | |
424 | bag of miscellaneous but relatively cheap checks.]) | |
204250d2 | 425 | nocommon_flag=-fno-common |
119d24d1 | 426 | fi |
204250d2 | 427 | AC_SUBST(nocommon_flag) |
3089f8b5 PB |
428 | if test x$ac_df_checking != x ; then |
429 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
430 | [Define if you want more run-time sanity checks for dataflow.]) | |
431 | fi | |
06c37c96 NS |
432 | if test x$ac_assert_checking != x ; then |
433 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
434 | [Define if you want assertions enabled. This is a cheap check.]) | |
435 | fi | |
726a989a RB |
436 | if test x$ac_gimple_checking != x ; then |
437 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
438 | [Define if you want operations on GIMPLE (the basic data structure of | |
439 | the high-level optimizers) to be checked for dynamic type safety at | |
440 | runtime. This is moderately expensive.]) | |
441 | fi | |
232b67d9 | 442 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
b53ef395 NS |
443 | if test x$ac_runtime_checking != x ; then |
444 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
445 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
446 | fi | |
119d24d1 KG |
447 | if test x$ac_tree_checking != x ; then |
448 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
449 | [Define if you want all operations on trees (the basic data | |
450 | structure of the front ends) to be checked for dynamic type safety | |
13f05fd0 BM |
451 | at runtime. This is moderately expensive. The tree browser debugging |
452 | routines will also be enabled by this option. | |
453 | ]) | |
454 | TREEBROWSER=tree-browser.o | |
119d24d1 | 455 | fi |
7e98624c RG |
456 | if test x$ac_types_checking != x ; then |
457 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
458 | [Define if you want all gimple types to be verified after gimplifiation. | |
459 | This is cheap. | |
460 | ]) | |
461 | fi | |
13f05fd0 | 462 | AC_SUBST(TREEBROWSER) |
119d24d1 KG |
463 | if test x$ac_rtl_checking != x ; then |
464 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
465 | [Define if you want all operations on RTL (the basic data structure | |
466 | of the optimizer and back end) to be checked for dynamic type safety | |
467 | at runtime. This is quite expensive.]) | |
468 | fi | |
4c76f856 JJ |
469 | if test x$ac_rtlflag_checking != x ; then |
470 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
471 | [Define if you want RTL flag accesses to be checked against the RTL | |
472 | codes that are supported for each access macro. This is relatively | |
473 | cheap.]) | |
474 | fi | |
119d24d1 KG |
475 | if test x$ac_gc_checking != x ; then |
476 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
477 | [Define if you want the garbage collector to do object poisoning and | |
478 | other memory allocation checks. This is quite expensive.]) | |
479 | fi | |
480 | if test x$ac_gc_always_collect != x ; then | |
481 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
482 | [Define if you want the garbage collector to operate in maximally | |
483 | paranoid mode, validating the entire heap and collecting garbage at | |
484 | every opportunity. This is extremely expensive.]) | |
485 | fi | |
5dfa45d0 JJ |
486 | if test x$ac_fold_checking != x ; then |
487 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
488 | [Define if you want fold checked that it never destructs its argument. | |
489 | This is quite expensive.]) | |
490 | fi | |
414d23ae HPN |
491 | valgrind_path_defines= |
492 | valgrind_command= | |
6938ec6c NN |
493 | |
494 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
495 | dnl # an if statement. This was the source of very frustrating bugs | |
496 | dnl # in converting to autoconf 2.5x! | |
497 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
498 | ||
cdce5c16 | 499 | if test x$ac_valgrind_checking != x ; then |
414d23ae HPN |
500 | # It is certainly possible that there's valgrind but no valgrind.h. |
501 | # GCC relies on making annotations so we must have both. | |
a207b594 | 502 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) |
f04f1d2c KC |
503 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
504 | [[#include <valgrind/memcheck.h> | |
a207b594 HPN |
505 | #ifndef VALGRIND_DISCARD |
506 | #error VALGRIND_DISCARD not defined | |
f04f1d2c | 507 | #endif]])], |
a207b594 HPN |
508 | [gcc_cv_header_valgrind_memcheck_h=yes], |
509 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
510 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
14011ca4 | 511 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) |
f04f1d2c KC |
512 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
513 | [[#include <memcheck.h> | |
14011ca4 AJ |
514 | #ifndef VALGRIND_DISCARD |
515 | #error VALGRIND_DISCARD not defined | |
f04f1d2c KC |
516 | #endif]])], |
517 | [gcc_cv_header_memcheck_h=yes], | |
518 | [gcc_cv_header_memcheck_h=no]) | |
14011ca4 | 519 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
414d23ae HPN |
520 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
521 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a207b594 HPN |
522 | if test "x$valgrind_path" = "x" \ |
523 | || (test $have_valgrind_h = no \ | |
524 | && test $gcc_cv_header_memcheck_h = no \ | |
525 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
526 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
414d23ae HPN |
527 | fi |
528 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
529 | valgrind_command="$valgrind_path -q" | |
530 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
531 | [Define if you want to run subprograms and generated programs | |
532 | through valgrind (a memory checker). This is extremely expensive.]) | |
a207b594 HPN |
533 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then |
534 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
535 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
536 | fi | |
14011ca4 AJ |
537 | if test $gcc_cv_header_memcheck_h = yes; then |
538 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
539 | [Define if valgrind's memcheck.h header is installed.]) | |
540 | fi | |
414d23ae HPN |
541 | fi |
542 | AC_SUBST(valgrind_path_defines) | |
543 | AC_SUBST(valgrind_command) | |
51d0e20c | 544 | |
22aa533e NS |
545 | # Enable code coverage collection |
546 | AC_ARG_ENABLE(coverage, | |
547 | [ --enable-coverage[=LEVEL] | |
fb38008e | 548 | enable compiler's code coverage collection. |
22aa533e | 549 | Use to measure compiler performance and locate |
8601608f | 550 | unused parts of the compiler. With LEVEL, specify |
22aa533e NS |
551 | optimization. Values are opt, noopt, |
552 | default is noopt], | |
553 | [case "${enableval}" in | |
6dd297da NN |
554 | yes|noopt) |
555 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
556 | ;; | |
557 | opt) | |
558 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
559 | ;; | |
560 | no) | |
561 | # a.k.a. --disable-coverage | |
562 | coverage_flags="" | |
563 | ;; | |
564 | *) | |
565 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
566 | ;; | |
22aa533e | 567 | esac], |
2043c38e | 568 | [coverage_flags=""]) |
22aa533e NS |
569 | AC_SUBST(coverage_flags) |
570 | ||
439a7e54 DN |
571 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
572 | [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
573 | [enable_gather_detailed_mem_stats=no]) | |
574 | if test x$enable_gather_detailed_mem_stats = xyes ; then | |
575 | AC_DEFINE(GATHER_STATISTICS, 1, | |
576 | [Define to enable detailed memory allocation stats gathering.]) | |
577 | fi | |
578 | ||
73458fb7 NN |
579 | # ------------------------------- |
580 | # Miscenalleous configure options | |
581 | # ------------------------------- | |
34a86c2b | 582 | |
00020c16 ILT |
583 | # See if we are building gcc with C++. |
584 | AC_ARG_ENABLE(build-with-cxx, | |
585 | [ --enable-build-with-cxx build with C++ compiler instead of C compiler], | |
586 | ENABLE_BUILD_WITH_CXX=$enableval, | |
587 | ENABLE_BUILD_WITH_CXX=no) | |
588 | AC_SUBST(ENABLE_BUILD_WITH_CXX) | |
589 | ||
34a86c2b NN |
590 | # With stabs |
591 | AC_ARG_WITH(stabs, | |
592 | [ --with-stabs arrange to use stabs instead of host debug format], | |
593 | stabs="$with_stabs", | |
594 | stabs=no) | |
595 | ||
34a86c2b NN |
596 | # Determine whether or not multilibs are enabled. |
597 | AC_ARG_ENABLE(multilib, | |
598 | [ --enable-multilib enable library support for multiple ABIs], | |
599 | [], [enable_multilib=yes]) | |
600 | AC_SUBST(enable_multilib) | |
3ecc3258 | 601 | |
4bafaa6f L |
602 | # Enable __cxa_atexit for C++. |
603 | AC_ARG_ENABLE(__cxa_atexit, | |
604 | [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
605 | [], []) | |
2121a768 | 606 | |
486aa804 BE |
607 | # Enable C extension for decimal float if target supports it. |
608 | AC_ARG_ENABLE(decimal-float, | |
79b87c74 MM |
609 | [ --enable-decimal-float={no,yes,bid,dpd} |
610 | enable decimal float extension to C. Selecting 'bid' | |
611 | or 'dpd' choses which decimal floating point format | |
612 | to use], | |
486aa804 | 613 | [ |
79b87c74 MM |
614 | case $enable_decimal_float in |
615 | yes | no | bid | dpd) ;; | |
616 | *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float. | |
617 | Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;; | |
618 | esac | |
619 | ], | |
620 | [ | |
621 | case $target in | |
622 | powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*) | |
a4a9df5f | 623 | enable_decimal_float=yes |
486aa804 BE |
624 | ;; |
625 | *) | |
626 | AC_MSG_WARN(decimal float is not supported for this target, ignored) | |
627 | enable_decimal_float=no | |
628 | ;; | |
79b87c74 MM |
629 | esac |
630 | ]) | |
486aa804 | 631 | |
79b87c74 | 632 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
486aa804 BE |
633 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
634 | [Define to 1 to enable decimal float extension to C.]) | |
635 | ||
79b87c74 MM |
636 | # x86's use BID format instead of DPD |
637 | case x$enable_decimal_float in | |
638 | xyes) | |
639 | case $target in | |
640 | i?86*-*-linux* | x86_64*-*-linux*) | |
641 | enable_decimal_float=bid | |
642 | ;; | |
643 | *) | |
644 | enable_decimal_float=dpd | |
645 | ;; | |
646 | esac | |
647 | ;; | |
648 | xno) | |
649 | # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper | |
650 | # dependency on libdecnumber. | |
651 | enable_decimal_float=dpd | |
652 | ;; | |
653 | esac | |
654 | AC_SUBST(enable_decimal_float) | |
655 | ||
656 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` | |
657 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
658 | [Define to 1 to specify that we are using the BID decimal floating | |
659 | point format instead of DPD]) | |
660 | ||
ab22c1fa CF |
661 | # Enable C extension for fixed-point arithmetic. |
662 | AC_ARG_ENABLE(fixed-point, | |
663 | [ --enable-fixed-point enable fixed-point arithmetic extension to C], | |
664 | [ | |
665 | ], | |
666 | [ | |
667 | case $target in | |
668 | mips*-*-*) | |
d5be1dd4 RS |
669 | case $host in |
670 | mips*-sgi-irix*) | |
671 | AC_MSG_WARN(fixed-point is not supported on IRIX, ignored) | |
672 | enable_fixed_point=no | |
673 | ;; | |
674 | *) | |
675 | enable_fixed_point=yes | |
676 | ;; | |
677 | esac | |
ab22c1fa CF |
678 | ;; |
679 | *) | |
680 | AC_MSG_WARN(fixed-point is not supported for this target, ignored) | |
681 | enable_fixed_point=no | |
682 | ;; | |
683 | esac | |
684 | ]) | |
685 | AC_SUBST(enable_fixed_point) | |
686 | ||
687 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
688 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
689 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
690 | ||
0bbb1697 RK |
691 | # Enable threads |
692 | # Pass with no value to take the default | |
693 | # Pass with a value to specify a thread package | |
694 | AC_ARG_ENABLE(threads, | |
e8bec136 RO |
695 | [ --enable-threads enable thread usage for target GCC |
696 | --enable-threads=LIB use LIB thread package for target GCC],, | |
615be2cf | 697 | [enable_threads='']) |
0bbb1697 | 698 | |
8dea1cca DD |
699 | AC_ARG_ENABLE(tls, |
700 | [ --enable-tls enable or disable generation of tls code | |
701 | overriding the assembler check for tls support], | |
702 | [ | |
703 | case $enable_tls in | |
704 | yes | no) ;; | |
705 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
706 | Valid choices are 'yes' and 'no'.]) ;; | |
707 | esac | |
708 | ], [enable_tls='']) | |
709 | ||
d8bb17c8 OP |
710 | AC_ARG_ENABLE(objc-gc, |
711 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
e8bec136 | 712 | the GNU Objective-C runtime], |
2618c083 | 713 | if test x$enable_objc_gc = xno; then |
d8bb17c8 OP |
714 | objc_boehm_gc='' |
715 | else | |
716 | objc_boehm_gc=1 | |
717 | fi, | |
718 | objc_boehm_gc='') | |
719 | ||
90e6a802 | 720 | AC_ARG_WITH(dwarf2, |
e8bec136 | 721 | [ --with-dwarf2 force the default debug format to be DWARF 2], |
90e6a802 RL |
722 | dwarf2="$with_dwarf2", |
723 | dwarf2=no) | |
724 | ||
50503ac8 | 725 | AC_ARG_ENABLE(shared, |
e8bec136 | 726 | [ --disable-shared don't provide a shared libgcc], |
c785e0fa AO |
727 | [ |
728 | case $enable_shared in | |
729 | yes | no) ;; | |
730 | *) | |
731 | enable_shared=no | |
732 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
733 | for pkg in $enableval; do | |
734 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
735 | enable_shared=yes | |
736 | fi | |
737 | done | |
738 | IFS="$ac_save_ifs" | |
739 | ;; | |
740 | esac | |
741 | ], [enable_shared=yes]) | |
50503ac8 RH |
742 | AC_SUBST(enable_shared) |
743 | ||
160633c6 MM |
744 | AC_ARG_WITH(build-sysroot, |
745 | [ --with-build-sysroot=sysroot | |
746 | use sysroot as the system root during the build]) | |
747 | ||
4977bab6 ZW |
748 | AC_ARG_WITH(sysroot, |
749 | [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
750 | [ | |
751 | case ${with_sysroot} in | |
caa55b1e | 752 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; |
4977bab6 ZW |
753 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; |
754 | esac | |
755 | ||
756 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
14da6073 | 757 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' |
b28250ab | 758 | |
748670c2 RS |
759 | if test "x$prefix" = xNONE; then |
760 | test_prefix=/usr/local | |
761 | else | |
762 | test_prefix=$prefix | |
763 | fi | |
047d636f | 764 | if test "x$exec_prefix" = xNONE; then |
748670c2 | 765 | test_exec_prefix=$test_prefix |
047d636f | 766 | else |
748670c2 | 767 | test_exec_prefix=$exec_prefix |
047d636f DJ |
768 | fi |
769 | case ${TARGET_SYSTEM_ROOT} in | |
91710e62 | 770 | "${test_prefix}"|"${test_prefix}/"*|\ |
748670c2 RS |
771 | "${test_exec_prefix}"|"${test_exec_prefix}/"*|\ |
772 | '${prefix}'|'${prefix}/'*|\ | |
91710e62 | 773 | '${exec_prefix}'|'${exec_prefix}/'*) |
047d636f DJ |
774 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" |
775 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
776 | ;; | |
777 | esac | |
4977bab6 ZW |
778 | ], [ |
779 | TARGET_SYSTEM_ROOT= | |
db720d9a | 780 | TARGET_SYSTEM_ROOT_DEFINE= |
4977bab6 ZW |
781 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' |
782 | ]) | |
783 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
784 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
785 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
786 | ||
d1bd0ded | 787 | # Build with intermodule optimisations |
d1bd0ded GK |
788 | AC_ARG_ENABLE(intermodule, |
789 | [ --enable-intermodule build the compiler in one step], | |
0c46c5c7 KC |
790 | [case ${enable_intermodule} in |
791 | yes) onestep="-onestep";; | |
792 | *) onestep="";; | |
793 | esac], | |
794 | [onestep=""]) | |
d1bd0ded GK |
795 | AC_SUBST(onestep) |
796 | ||
2f41c1d6 PB |
797 | ACX_PKGVERSION([GCC]) |
798 | ACX_BUGURL([http://gcc.gnu.org/bugs.html]) | |
799 | ||
e4c9c075 PB |
800 | # Sanity check enable_languages in case someone does not run the toplevel |
801 | # configure # script. | |
802 | AC_ARG_ENABLE(languages, | |
803 | [ --enable-languages=LIST specify which front-ends to build], | |
804 | [case ,${enable_languages}, in | |
805 | ,,|,yes,) | |
806 | # go safe -- we cannot be much sure without the toplevel | |
807 | # configure's | |
808 | # analysis of which target libs are present and usable | |
809 | enable_languages=c | |
810 | ;; | |
811 | *,all,*) | |
812 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
813 | ;; | |
814 | *,c,*) | |
815 | ;; | |
816 | *) | |
817 | enable_languages=c,${enable_languages} | |
818 | ;; | |
819 | esac], | |
820 | [enable_languages=c]) | |
821 | ||
aca600aa AS |
822 | AC_ARG_WITH(multilib-list, |
823 | [ --with-multilib-list Select multilibs (SH only)], | |
824 | :, | |
825 | with_multilib_list=default) | |
826 | ||
73458fb7 NN |
827 | # ------------------------- |
828 | # Checks for other programs | |
829 | # ------------------------- | |
61842080 | 830 | |
e9a25f70 JL |
831 | AC_PROG_MAKE_SET |
832 | ||
46f18e7b RK |
833 | # Find some useful tools |
834 | AC_PROG_AWK | |
776dc15d | 835 | # We need awk to create options.c and options.h. |
2c4902b9 NN |
836 | # Bail out if it's missing. |
837 | case ${AWK} in | |
838 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
839 | esac | |
840 | ||
99e757d5 | 841 | gcc_AC_PROG_LN_S |
ad6717df | 842 | ACX_PROG_LN($LN_S) |
46f18e7b | 843 | AC_PROG_RANLIB |
343a6100 MM |
844 | case "${host}" in |
845 | *-*-darwin*) | |
846 | # By default, the Darwin ranlib will not treat common symbols as | |
847 | # definitions when building the archive table of contents. Other | |
848 | # ranlibs do that; pass an option to the Darwin ranlib that makes | |
849 | # it behave similarly. | |
850 | ranlib_flags="-c" | |
851 | ;; | |
852 | *) | |
853 | ranlib_flags="" | |
854 | esac | |
855 | AC_SUBST(ranlib_flags) | |
856 | ||
99e757d5 | 857 | gcc_AC_PROG_INSTALL |
46f18e7b | 858 | |
3a000df0 KC |
859 | # See if cmp has --ignore-initial. |
860 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
861 | ||
955be633 JM |
862 | # See if we have the mktemp command. |
863 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
864 | ||
7c27e184 PB |
865 | # See if makeinfo has been installed and is modern enough |
866 | # that we can use it. | |
3bbd5a19 | 867 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
09fa0705 | 868 | [GNU texinfo.* \([0-9][0-9.]*\)], |
7326a39e | 869 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
09fa0705 ZW |
870 | if test $gcc_cv_prog_makeinfo_modern = no; then |
871 | AC_MSG_WARN([ | |
872 | *** Makeinfo is missing or too old. | |
17db6582 | 873 | *** Info documentation will not be built.]) |
09fa0705 | 874 | BUILD_INFO= |
09fa0705 | 875 | else |
7c27e184 | 876 | BUILD_INFO=info |
09fa0705 | 877 | fi |
7c27e184 | 878 | AC_SUBST(BUILD_INFO) |
09fa0705 | 879 | |
3f896fc2 JM |
880 | # Is pod2man recent enough to regenerate manpages? |
881 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7be33370 | 882 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fd939e46 | 883 | AC_MSG_RESULT(yes) |
7c27e184 | 884 | GENERATED_MANPAGES=generated-manpages |
fd939e46 JM |
885 | else |
886 | AC_MSG_RESULT(no) | |
887 | GENERATED_MANPAGES= | |
888 | fi | |
7c27e184 | 889 | AC_SUBST(GENERATED_MANPAGES) |
fd939e46 | 890 | |
3bbd5a19 PB |
891 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
892 | ||
1e608388 ZW |
893 | # How about lex? |
894 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
895 | dnl LEXLIB is not useful in gcc. | |
7c27e184 | 896 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
1e608388 ZW |
897 | |
898 | # Bison? | |
7c27e184 PB |
899 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
900 | ||
901 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
902 | # check for build == host before using them. | |
1e608388 | 903 | |
f6a874ac | 904 | # NM |
414adbdd GK |
905 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
906 | && test -d ../binutils ; then | |
f6a874ac JW |
907 | NM='$(objdir)/../binutils/nm-new' |
908 | else | |
909 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
910 | fi | |
911 | ||
912 | # AR | |
414adbdd GK |
913 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
914 | && test -d ../binutils ; then | |
f6a874ac JW |
915 | AR='$(objdir)/../binutils/ar' |
916 | else | |
917 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
918 | fi | |
919 | ||
920 | ||
73458fb7 NN |
921 | # -------------------- |
922 | # Checks for C headers | |
923 | # -------------------- | |
924 | ||
ca9bc441 NN |
925 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
926 | # works later. *sigh* This needs to come before all header checks. | |
927 | AC_PROG_CPP_WERROR | |
928 | ||
73458fb7 NN |
929 | AC_HEADER_STDC |
930 | AC_HEADER_TIME | |
4f4e53dd | 931 | ACX_HEADER_STRING |
73458fb7 | 932 | AC_HEADER_SYS_WAIT |
dfb77e37 | 933 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
1072ec3f | 934 | fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
73458fb7 | 935 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
56694dd9 | 936 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
73458fb7 NN |
937 | |
938 | # Check for thread headers. | |
939 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
940 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
941 | ||
942 | # These tests can't be done till we know if we have limits.h. | |
943 | gcc_AC_C_CHAR_BIT | |
9791c75c | 944 | AC_C_BIGENDIAN |
73458fb7 NN |
945 | |
946 | # -------- | |
947 | # UNSORTED | |
948 | # -------- | |
949 | ||
73458fb7 | 950 | |
4e70264f ZW |
951 | # These libraries may be used by collect2. |
952 | # We may need a special search path to get them linked. | |
953 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
954 | [save_LIBS="$LIBS" | |
7f2749d4 | 955 | for libs in '' -lld -lmld \ |
4e70264f ZW |
956 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
957 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
958 | do | |
959 | LIBS="$libs" | |
960 | AC_TRY_LINK_FUNC(ldopen, | |
961 | [gcc_cv_collect2_libs="$libs"; break]) | |
962 | done | |
963 | LIBS="$save_LIBS" | |
964 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
965 | case $gcc_cv_collect2_libs in | |
966 | "none required") ;; | |
967 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
968 | esac | |
969 | AC_SUBST(COLLECT2_LIBS) | |
970 | ||
7f2749d4 RK |
971 | # When building Ada code on Alpha, we need exc_resume which is usually in |
972 | # -lexc. So test for it. | |
973 | save_LIBS="$LIBS" | |
974 | LIBS= | |
975 | AC_SEARCH_LIBS(exc_resume, exc) | |
976 | GNAT_LIBEXC="$LIBS" | |
977 | LIBS="$save_LIBS" | |
978 | AC_SUBST(GNAT_LIBEXC) | |
979 | ||
62c9aa5f ZW |
980 | # Some systems put ldexp and frexp in libm instead of libc; assume |
981 | # they're both in the same place. jcf-dump needs them. | |
982 | save_LIBS="$LIBS" | |
983 | LIBS= | |
984 | AC_SEARCH_LIBS(ldexp, m) | |
985 | LDEXP_LIB="$LIBS" | |
986 | LIBS="$save_LIBS" | |
987 | AC_SUBST(LDEXP_LIB) | |
988 | ||
7636d567 JW |
989 | # Use <inttypes.h> only if it exists, |
990 | # doesn't clash with <sys/types.h>, and declares intmax_t. | |
991 | AC_MSG_CHECKING(for inttypes.h) | |
992 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
f04f1d2c KC |
993 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
994 | [[#include <sys/types.h> | |
995 | #include <inttypes.h>]], | |
996 | [[intmax_t i = -1;]])], | |
9da0e39b | 997 | [gcc_cv_header_inttypes_h=yes], |
f04f1d2c | 998 | [gcc_cv_header_inttypes_h=no])]) |
7636d567 | 999 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
9da0e39b | 1000 | if test $gcc_cv_header_inttypes_h = yes; then |
119d24d1 KG |
1001 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1002 | [Define if you have a working <inttypes.h> header file.]) | |
9da0e39b | 1003 | fi |
cdcc6a01 | 1004 | |
9612ab65 ZW |
1005 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1006 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
c149cc37 | 1007 | |
0d667716 KG |
1008 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1009 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1010 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1011 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1012 | putchar_unlocked putc_unlocked) | |
52a6edcc | 1013 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \ |
d2e506f2 | 1014 | sysconf strsignal getrusage nl_langinfo \ |
0d667716 KG |
1015 | gettimeofday mbstowcs wcswidth mmap mincore setlocale \ |
1016 | gcc_UNLOCKED_FUNCS) | |
a81fb89e | 1017 | |
39f6c4c8 KW |
1018 | if test x$ac_cv_func_mbstowcs = xyes; then |
1019 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
f04f1d2c | 1020 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
39f6c4c8 KW |
1021 | int main() |
1022 | { | |
1023 | mbstowcs(0, "", 0); | |
1024 | return 0; | |
f04f1d2c KC |
1025 | }]])], |
1026 | [gcc_cv_func_mbstowcs_works=yes], | |
1027 | [gcc_cv_func_mbstowcs_works=no], | |
1028 | [gcc_cv_func_mbstowcs_works=yes])]) | |
39f6c4c8 KW |
1029 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1030 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1031 | [Define this macro if mbstowcs does not crash when its | |
1032 | first argument is NULL.]) | |
1033 | fi | |
1034 | fi | |
1035 | ||
78c9cb99 | 1036 | AC_CHECK_TYPE(ssize_t, int) |
bba09b5a | 1037 | AC_CHECK_TYPE(caddr_t, char *) |
56f48ce9 | 1038 | |
1072ec3f | 1039 | gcc_AC_FUNC_MMAP_BLACKLIST |
b27d2bd5 MK |
1040 | |
1041 | case "${host}" in | |
ee262b6f | 1042 | *-*-*vms*) |
2c55543b | 1043 | # Under VMS, vfork works very differently than on Unix. The standard test |
ee262b6f DR |
1044 | # won't work, and it isn't easily adaptable. It makes more sense to |
1045 | # just force it. | |
1046 | ac_cv_func_vfork_works=yes | |
1047 | ;; | |
b27d2bd5 | 1048 | esac |
f04f1d2c | 1049 | AC_FUNC_FORK |
f1b54f9b | 1050 | |
f91abfce | 1051 | AM_ICONV |
56694dd9 ZW |
1052 | # Until we have in-tree GNU iconv: |
1053 | LIBICONV_DEP= | |
1054 | AC_SUBST(LIBICONV_DEP) | |
1055 | ||
1056 | AM_LC_MESSAGES | |
f91abfce | 1057 | |
a03ea89b BM |
1058 | AM_LANGINFO_CODESET |
1059 | ||
86cf1cbd KG |
1060 | # We will need to find libiberty.h and ansidecl.h |
1061 | saved_CFLAGS="$CFLAGS" | |
1062 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
ed5b9f96 GK |
1063 | gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \ |
1064 | strsignal strstr strverscmp \ | |
1065 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ | |
367e8319 | 1066 | free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[ |
d02af173 | 1067 | #include "ansidecl.h" |
86cf1cbd | 1068 | #include "system.h"]) |
c5c76735 | 1069 | |
f31e826b | 1070 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
d02af173 | 1071 | #include "ansidecl.h" |
86cf1cbd | 1072 | #include "system.h" |
d2cabf16 KG |
1073 | #ifdef HAVE_SYS_RESOURCE_H |
1074 | #include <sys/resource.h> | |
1075 | #endif | |
1076 | ]) | |
1077 | ||
f04f1d2c | 1078 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
b2522d2b HPN |
1079 | #include "ansidecl.h" |
1080 | #include "system.h" | |
1081 | #ifdef HAVE_SYS_RESOURCE_H | |
1082 | #include <sys/resource.h> | |
1083 | #endif | |
f04f1d2c | 1084 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
236ec2d7 | 1085 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
b2522d2b | 1086 | |
2102b2fe RS |
1087 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1088 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1089 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1090 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
351df804 KG |
1091 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1092 | #include "ansidecl.h" | |
1093 | #include "system.h" | |
1094 | #ifdef HAVE_LDFCN_H | |
2102b2fe RS |
1095 | #undef FREAD |
1096 | #undef FWRITE | |
351df804 KG |
1097 | #include <ldfcn.h> |
1098 | #endif | |
1099 | ]) | |
1100 | ||
c1800ec8 ZW |
1101 | gcc_AC_CHECK_DECLS(times, , ,[ |
1102 | #include "ansidecl.h" | |
1103 | #include "system.h" | |
1104 | #ifdef HAVE_SYS_TIMES_H | |
1105 | #include <sys/times.h> | |
1106 | #endif | |
1107 | ]) | |
1108 | ||
4f6d8cc8 GK |
1109 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1110 | #include "ansidecl.h" | |
1111 | #include "system.h" | |
1112 | #include <signal.h> | |
1113 | ]) | |
1114 | ||
c1800ec8 ZW |
1115 | # More time-related stuff. |
1116 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
f04f1d2c | 1117 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1118 | #include "ansidecl.h" |
1119 | #include "system.h" | |
1120 | #ifdef HAVE_SYS_TIMES_H | |
1121 | #include <sys/times.h> | |
1122 | #endif | |
f04f1d2c | 1123 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c1800ec8 ZW |
1124 | if test $ac_cv_struct_tms = yes; then |
1125 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1126 | [Define if <sys/times.h> defines struct tms.]) | |
1127 | fi | |
1128 | ||
1129 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1130 | # revisit after autoconf 2.50. | |
1131 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
f04f1d2c | 1132 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1133 | #include "ansidecl.h" |
1134 | #include "system.h" | |
f04f1d2c | 1135 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c1800ec8 ZW |
1136 | if test $gcc_cv_type_clock_t = yes; then |
1137 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1138 | [Define if <time.h> defines clock_t.]) | |
1139 | fi | |
1140 | ||
86cf1cbd KG |
1141 | # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
1142 | CFLAGS="$saved_CFLAGS" | |
1143 | ||
eb70d86d AS |
1144 | gcc_AC_INITFINI_ARRAY |
1145 | ||
75923b2f | 1146 | # mkdir takes a single argument on some systems. |
99e757d5 | 1147 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
75923b2f | 1148 | |
46f18e7b RK |
1149 | # File extensions |
1150 | manext='.1' | |
1151 | objext='.o' | |
46f18e7b RK |
1152 | AC_SUBST(manext) |
1153 | AC_SUBST(objext) | |
46f18e7b | 1154 | |
4977bab6 ZW |
1155 | # With Setjmp/Longjmp based exception handling. |
1156 | AC_ARG_ENABLE(sjlj-exceptions, | |
1157 | [ --enable-sjlj-exceptions | |
1158 | arrange to use setjmp/longjmp exception handling], | |
399fe3e1 JDA |
1159 | [case $target in |
1160 | *-*-hpux10*) | |
1161 | if test $enableval != yes; then | |
1162 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1163 | enableval=yes | |
1164 | fi | |
1165 | ;; | |
1166 | esac | |
1167 | force_sjlj_exceptions=yes], | |
1168 | [case $target in | |
1169 | *-*-hpux10*) | |
1170 | force_sjlj_exceptions=yes | |
1171 | enableval=yes | |
1172 | ;; | |
1173 | *) | |
1174 | force_sjlj_exceptions=no | |
1175 | ;; | |
1176 | esac]) | |
1177 | if test $force_sjlj_exceptions = yes; then | |
1178 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1179 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1180 | [Define 0/1 to force the choice for exception handling model.]) | |
1181 | fi | |
4977bab6 | 1182 | |
443728bb L |
1183 | # For platforms with the unwind ABI which includes an unwind library, |
1184 | # libunwind, we can choose to use the system libunwind. | |
e64f5acf | 1185 | # config.gcc also contains tests of with_system_libunwind. |
e61c76c9 | 1186 | GCC_CHECK_UNWIND_GETIPINFO |
e64f5acf | 1187 | |
34a86c2b NN |
1188 | # -------------------------------------------------------- |
1189 | # Build, host, and target specific configuration fragments | |
1190 | # -------------------------------------------------------- | |
1191 | ||
5b28c537 NN |
1192 | # Collect build-machine-specific information. |
1193 | . ${srcdir}/config.build | |
1194 | ||
a89ea0df NN |
1195 | # Collect host-machine-specific information. |
1196 | . ${srcdir}/config.host | |
1197 | ||
ef69da62 | 1198 | target_gtfiles= |
a89ea0df NN |
1199 | |
1200 | # Collect target-machine-specific information. | |
b01bc573 | 1201 | . ${srcdir}/config.gcc |
46f18e7b RK |
1202 | |
1203 | extra_objs="${host_extra_objs} ${extra_objs}" | |
30500d84 | 1204 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
46f18e7b RK |
1205 | |
1206 | # Default the target-machine variables that were not explicitly set. | |
75bffa71 | 1207 | if test x"$tm_file" = x |
46f18e7b RK |
1208 | then tm_file=$cpu_type/$cpu_type.h; fi |
1209 | ||
6b2adea9 | 1210 | if test x"$extra_headers" = x |
46f18e7b RK |
1211 | then extra_headers=; fi |
1212 | ||
75bffa71 | 1213 | if test x$md_file = x |
e98e406f | 1214 | then md_file=$cpu_type/$cpu_type.md; fi |
46f18e7b | 1215 | |
75bffa71 | 1216 | if test x$out_file = x |
46f18e7b RK |
1217 | then out_file=$cpu_type/$cpu_type.c; fi |
1218 | ||
75bffa71 | 1219 | if test x"$tmake_file" = x |
46f18e7b RK |
1220 | then tmake_file=$cpu_type/t-$cpu_type |
1221 | fi | |
1222 | ||
90e6a802 | 1223 | if test x"$dwarf2" = xyes |
756ee602 | 1224 | then tm_file="$tm_file tm-dwarf2.h" |
90e6a802 RL |
1225 | fi |
1226 | ||
46f18e7b | 1227 | # Say what files are being used for the output code and MD file. |
11642c3a | 1228 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
46f18e7b RK |
1229 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1230 | ||
11642c3a | 1231 | # If any of the xm_file variables contain nonexistent files, warn |
4dc0535b ZW |
1232 | # about them and drop them. |
1233 | ||
11642c3a ZW |
1234 | bx= |
1235 | for x in $build_xm_file; do | |
1236 | if test -f $srcdir/config/$x | |
1237 | then bx="$bx $x" | |
11642c3a ZW |
1238 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1239 | fi | |
1240 | done | |
1241 | build_xm_file="$bx" | |
1242 | ||
1243 | hx= | |
1244 | for x in $host_xm_file; do | |
1245 | if test -f $srcdir/config/$x | |
1246 | then hx="$hx $x" | |
11642c3a ZW |
1247 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1248 | fi | |
1249 | done | |
1250 | host_xm_file="$hx" | |
1251 | ||
1252 | tx= | |
1253 | for x in $xm_file; do | |
1254 | if test -f $srcdir/config/$x | |
1255 | then tx="$tx $x" | |
11642c3a ZW |
1256 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1257 | fi | |
1258 | done | |
1259 | xm_file="$tx" | |
1260 | ||
46f18e7b RK |
1261 | count=a |
1262 | for f in $tm_file; do | |
1263 | count=${count}x | |
1264 | done | |
75bffa71 | 1265 | if test $count = ax; then |
46f18e7b RK |
1266 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1267 | else | |
1268 | echo "Using the following target machine macro files:" | |
1269 | for f in $tm_file; do | |
1270 | echo " $srcdir/config/$f" | |
1271 | done | |
1272 | fi | |
1273 | ||
4977bab6 ZW |
1274 | if test x$need_64bit_hwint = xyes; then |
1275 | AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1276 | [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1277 | fi | |
1278 | ||
99fa8911 AP |
1279 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1280 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1281 | [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1282 | efficiently supported by the host hardware.]) | |
1283 | fi | |
1284 | ||
46f18e7b RK |
1285 | count=a |
1286 | for f in $host_xm_file; do | |
1287 | count=${count}x | |
1288 | done | |
11642c3a ZW |
1289 | if test $count = a; then |
1290 | : | |
1291 | elif test $count = ax; then | |
46f18e7b RK |
1292 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1293 | else | |
1294 | echo "Using the following host machine macro files:" | |
1295 | for f in $host_xm_file; do | |
1296 | echo " $srcdir/config/$f" | |
1297 | done | |
1298 | fi | |
476d9098 | 1299 | echo "Using ${out_host_hook_obj} for host machine hooks." |
46f18e7b | 1300 | |
75bffa71 | 1301 | if test "$host_xm_file" != "$build_xm_file"; then |
46f18e7b RK |
1302 | count=a |
1303 | for f in $build_xm_file; do | |
1304 | count=${count}x | |
1305 | done | |
11642c3a ZW |
1306 | if test $count = a; then |
1307 | : | |
1308 | elif test $count = ax; then | |
46f18e7b RK |
1309 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1310 | else | |
1311 | echo "Using the following build machine macro files:" | |
1312 | for f in $build_xm_file; do | |
1313 | echo " $srcdir/config/$f" | |
1314 | done | |
1315 | fi | |
1316 | fi | |
1317 | ||
4f6d8cc8 | 1318 | case ${host} in |
b8ec3cc8 | 1319 | powerpc*-*-darwin*) |
4f6d8cc8 GK |
1320 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1321 | gcc_cv_mcontext_underscores, | |
1322 | AC_COMPILE_IFELSE([ | |
ba7da42a | 1323 | #include <sys/cdefs.h> |
de4fb767 | 1324 | #include <sys/signal.h> |
4f6d8cc8 GK |
1325 | #include <ucontext.h> |
1326 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
1327 | ], | |
1328 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) | |
1329 | if test $gcc_cv_mcontext_underscores = yes; then | |
1330 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1331 | [mcontext_t fields start with __]) | |
1332 | fi | |
1333 | ;; | |
1334 | esac | |
1335 | ||
8bb915b6 NN |
1336 | # --------- |
1337 | # Threading | |
1338 | # --------- | |
1339 | ||
c2e494a8 | 1340 | # Check if a valid thread package |
615be2cf | 1341 | case ${enable_threads} in |
c2e494a8 NN |
1342 | "" | no) |
1343 | # No threads | |
1344 | target_thread_file='single' | |
1345 | ;; | |
1346 | yes) | |
1347 | # default | |
1348 | target_thread_file='single' | |
1349 | ;; | |
18167442 | 1350 | aix | dce | gnat | irix | posix | posix95 | rtems | \ |
d9dced13 | 1351 | single | solaris | vxworks | win32 | mipssde) |
615be2cf | 1352 | target_thread_file=${enable_threads} |
c2e494a8 NN |
1353 | ;; |
1354 | *) | |
615be2cf | 1355 | echo "${enable_threads} is an unknown thread package" 1>&2 |
c2e494a8 NN |
1356 | exit 1 |
1357 | ;; | |
1358 | esac | |
1359 | ||
1360 | if test x${thread_file} = x; then | |
1361 | # No thread file set by target-specific clauses in config.gcc, | |
1362 | # so use file chosen by default logic above | |
1363 | thread_file=${target_thread_file} | |
46f18e7b | 1364 | fi |
46f18e7b | 1365 | |
8bb915b6 NN |
1366 | # Make gthr-default.h if we have a thread file. |
1367 | gthread_flags= | |
1368 | if test $thread_file != single; then | |
b15a9f63 RW |
1369 | echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t |
1370 | if diff gthr-default.h-t gthr-default.h 2>/dev/null; then | |
1371 | rm -f gthr-default.h-t | |
1372 | else | |
1373 | mv -f gthr-default.h-t gthr-default.h | |
1374 | fi | |
8bb915b6 NN |
1375 | gthread_flags=-DHAVE_GTHR_DEFAULT |
1376 | fi | |
1377 | AC_SUBST(gthread_flags) | |
1378 | ||
1379 | # -------- | |
1380 | # UNSORTED | |
1381 | # -------- | |
1382 | ||
18fbf599 | 1383 | use_cxa_atexit=no |
2121a768 JT |
1384 | if test x$enable___cxa_atexit = xyes || \ |
1385 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
18fbf599 | 1386 | if test x$host = x$target; then |
97388150 DS |
1387 | case $host in |
1388 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1389 | # keyed to flag_use_cxa_atexit | |
1390 | *-*-mingw32*) | |
1391 | use_cxa_atexit=yes | |
1392 | ;; | |
1393 | *) | |
1394 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1395 | [echo "__cxa_atexit can't be enabled on this target"]) | |
5f60e48f | 1396 | ;; |
97388150 | 1397 | esac |
18fbf599 PB |
1398 | else |
1399 | # We can't check for __cxa_atexit when building a cross, so assume | |
1400 | # it is available | |
1401 | use_cxa_atexit=yes | |
1402 | fi | |
1403 | if test x$use_cxa_atexit = xyes; then | |
c7b5e395 | 1404 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
18fbf599 PB |
1405 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1406 | register C++ destructors for local statics and global objects. | |
1407 | This is essential for fully standards-compliant handling of | |
1408 | destructors, but requires __cxa_atexit in libc.]) | |
1409 | fi | |
2121a768 JT |
1410 | fi |
1411 | ||
a5381466 | 1412 | # Look for a file containing extra machine modes. |
1c0ca89d ZW |
1413 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1414 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
a5381466 | 1415 | AC_SUBST(extra_modes_file) |
e22340b0 | 1416 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
a5381466 ZW |
1417 | [Define to the name of a file containing a list of extra machine modes |
1418 | for this architecture.]) | |
a5381466 ZW |
1419 | fi |
1420 | ||
75685792 RS |
1421 | # Convert extra_options into a form suitable for Makefile use. |
1422 | extra_opt_files= | |
1423 | for f in $extra_options; do | |
1424 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1425 | done | |
1426 | AC_SUBST(extra_opt_files) | |
1427 | ||
b7cb92ad | 1428 | # auto-host.h is the file containing items generated by autoconf and is |
e9a25f70 | 1429 | # the first file included by config.h. |
4977bab6 | 1430 | # If host=build, it is correct to have bconfig include auto-host.h |
db81d74a RH |
1431 | # as well. If host!=build, we are in error and need to do more |
1432 | # work to find out the build config parameters. | |
75bffa71 | 1433 | if test x$host = x$build |
db81d74a | 1434 | then |
eaf4e618 | 1435 | build_auto=auto-host.h |
b7cb92ad JL |
1436 | else |
1437 | # We create a subdir, then run autoconf in the subdir. | |
1438 | # To prevent recursion we set host and build for the new | |
1439 | # invocation of configure to the build for this invocation | |
1440 | # of configure. | |
1441 | tempdir=build.$$ | |
1442 | rm -rf $tempdir | |
1443 | mkdir $tempdir | |
1444 | cd $tempdir | |
1445 | case ${srcdir} in | |
b86ecfa9 | 1446 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
b7cb92ad JL |
1447 | *) realsrcdir=../${srcdir};; |
1448 | esac | |
d920e825 L |
1449 | saved_CFLAGS="${CFLAGS}" |
1450 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
f8c33439 | 1451 | LDFLAGS="${LDFLAGS_FOR_BUILD}" \ |
d920e825 | 1452 | ${realsrcdir}/configure \ |
33e70558 | 1453 | --enable-languages=${enable_languages-all} \ |
534d0cc0 | 1454 | --target=$target_alias --host=$build_alias --build=$build_alias |
d920e825 | 1455 | CFLAGS="${saved_CFLAGS}" |
b7cb92ad JL |
1456 | |
1457 | # We just finished tests for the build machine, so rename | |
1458 | # the file auto-build.h in the gcc directory. | |
1459 | mv auto-host.h ../auto-build.h | |
1460 | cd .. | |
1461 | rm -rf $tempdir | |
eaf4e618 | 1462 | build_auto=auto-build.h |
db81d74a | 1463 | fi |
71b5d516 | 1464 | AC_SUBST(build_subdir) |
db81d74a | 1465 | |
eaf4e618 | 1466 | tm_file="${tm_file} defaults.h" |
4977bab6 ZW |
1467 | tm_p_file="${tm_p_file} tm-preds.h" |
1468 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1469 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
49691411 | 1470 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
b4862477 | 1471 | # put this back in temporarily. |
232b67d9 | 1472 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
0056a9b5 | 1473 | |
34a86c2b NN |
1474 | # -------- |
1475 | # UNSORTED | |
1476 | # -------- | |
1477 | ||
afabd8e6 | 1478 | changequote(,)dnl |
cc1e60ea | 1479 | # Compile in configure arguments. |
8105825d | 1480 | if test -f configargs.h ; then |
cc1e60ea | 1481 | # Being re-configured. |
022dae81 | 1482 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
cc1e60ea JM |
1483 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" |
1484 | else | |
1485 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1486 | fi | |
eeae7b41 DJ |
1487 | |
1488 | # Double all backslashes and backslash all quotes to turn | |
1489 | # gcc_config_arguments into a C string. | |
1490 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1491 | $gcc_config_arguments | |
1492 | EOF | |
1493 | gcc_config_arguments_str=`cat conftest.out` | |
1494 | rm -f conftest.out | |
1495 | ||
cc1e60ea JM |
1496 | cat > configargs.h <<EOF |
1497 | /* Generated automatically. */ | |
eeae7b41 | 1498 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
a6687d2b | 1499 | static const char thread_model[] = "$thread_file"; |
7816bea0 DJ |
1500 | |
1501 | static const struct { | |
1502 | const char *name, *value; | |
1503 | } configure_default_options[] = $configure_default_options; | |
cc1e60ea | 1504 | EOF |
75bffa71 | 1505 | changequote([,])dnl |
46f18e7b | 1506 | |
0c463e16 | 1507 | changequote(,)dnl |
40540e68 RAE |
1508 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1509 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1510 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
0c463e16 | 1511 | if test -f $srcdir/REVISION ; then |
40540e68 | 1512 | gcc_REVISION=`cat $srcdir/REVISION` |
0c463e16 RAE |
1513 | else |
1514 | gcc_REVISION="" | |
1515 | fi | |
1516 | cat > plugin-version.h <<EOF | |
1517 | #include "configargs.h" | |
1518 | ||
1519 | static char basever[] = "$gcc_BASEVER"; | |
1520 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1521 | static char devphase[] = "$gcc_DEVPHASE"; | |
1522 | static char revision[] = "$gcc_REVISION"; | |
1523 | ||
1524 | /* FIXME plugins: We should make the version information more precise. | |
1525 | One way to do is to add a checksum. */ | |
1526 | ||
1527 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1528 | devphase, revision, | |
1529 | configuration_arguments}; | |
1530 | EOF | |
1531 | changequote([,])dnl | |
1532 | ||
ab87f8c8 | 1533 | # Internationalization |
56694dd9 | 1534 | ZW_GNU_GETTEXT_SISTER_DIR |
dc6746e7 | 1535 | |
56694dd9 ZW |
1536 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1537 | # -liconv on the link line twice. | |
1538 | case "$LIBINTL" in *$LIBICONV*) | |
1539 | LIBICONV= ;; | |
1540 | esac | |
ab87f8c8 | 1541 | |
7f970b70 AM |
1542 | AC_ARG_ENABLE(secureplt, |
1543 | [ --enable-secureplt enable -msecure-plt by default for PowerPC], | |
1544 | [], []) | |
1545 | ||
922e3e33 UB |
1546 | AC_ARG_ENABLE(cld, |
1547 | [ --enable-cld enable -mcld by default for 32bit x86], [], | |
1548 | [enable_cld=no]) | |
1549 | ||
f4ab28e3 MK |
1550 | # Windows32 Registry support for specifying GCC installation paths. |
1551 | AC_ARG_ENABLE(win32-registry, | |
1552 | [ --disable-win32-registry | |
e8bec136 RO |
1553 | disable lookup of installation paths in the |
1554 | Registry on Windows hosts | |
1555 | --enable-win32-registry enable registry lookup (default) | |
f4ab28e3 | 1556 | --enable-win32-registry=KEY |
e8bec136 RO |
1557 | use KEY instead of GCC version as the last portion |
1558 | of the registry key],,) | |
a1286ef5 | 1559 | |
4e70264f | 1560 | case $host_os in |
a1286ef5 ZW |
1561 | win32 | pe | cygwin* | mingw32* | uwin*) |
1562 | if test "x$enable_win32_registry" != xno; then | |
1563 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1564 | fi | |
f4ab28e3 | 1565 | |
a1286ef5 ZW |
1566 | if test "x$enable_win32_registry" != xno; then |
1567 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1568 | [Define to 1 if installation paths should be looked up in the Windows | |
1569 | Registry. Ignored on non-Windows hosts.]) | |
1570 | ||
1571 | if test "x$enable_win32_registry" != xyes \ | |
1572 | && test "x$enable_win32_registry" != x; then | |
1573 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1574 | [Define to be the last component of the Windows registry key under which | |
1575 | to look for installation paths. The full key used will be | |
1576 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1577 | The default is the GCC version number.]) | |
1578 | fi | |
1579 | fi | |
f4ab28e3 MK |
1580 | ;; |
1581 | esac | |
1582 | ||
7fa10b25 | 1583 | # Get an absolute path to the GCC top-level source directory |
1e6347d8 | 1584 | holddir=`${PWDCMD-pwd}` |
7fa10b25 | 1585 | cd $srcdir |
1e6347d8 | 1586 | topdir=`${PWDCMD-pwd}` |
7fa10b25 RK |
1587 | cd $holddir |
1588 | ||
af5e4ada | 1589 | # Conditionalize the makefile for this host machine. |
2ed26f6b | 1590 | xmake_file= |
c406e779 | 1591 | for f in ${host_xmake_file} |
94f42018 | 1592 | do |
75bffa71 | 1593 | if test -f ${srcdir}/config/$f |
94f42018 | 1594 | then |
2ed26f6b | 1595 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
94f42018 DE |
1596 | fi |
1597 | done | |
46f18e7b | 1598 | |
af5e4ada | 1599 | # Conditionalize the makefile for this target machine. |
2ed26f6b | 1600 | tmake_file_= |
c406e779 | 1601 | for f in ${tmake_file} |
94f42018 | 1602 | do |
75bffa71 | 1603 | if test -f ${srcdir}/config/$f |
94f42018 | 1604 | then |
2ed26f6b | 1605 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
94f42018 DE |
1606 | fi |
1607 | done | |
2ed26f6b | 1608 | tmake_file="${tmake_file_}" |
5891b37d | 1609 | |
af5e4ada | 1610 | out_object_file=`basename $out_file .c`.o |
5891b37d | 1611 | |
75685792 RS |
1612 | tm_file_list="options.h" |
1613 | tm_include_list="options.h" | |
af5e4ada | 1614 | for f in $tm_file; do |
64ccbc99 | 1615 | case $f in |
3ca43df7 RS |
1616 | ./* ) |
1617 | f=`echo $f | sed 's/^..//'` | |
1618 | tm_file_list="${tm_file_list} $f" | |
1619 | tm_include_list="${tm_include_list} $f" | |
1620 | ;; | |
d02af173 | 1621 | defaults.h ) |
e22340b0 ZW |
1622 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
1623 | tm_include_list="${tm_include_list} $f" | |
1624 | ;; | |
1625 | * ) | |
1626 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1627 | tm_include_list="${tm_include_list} config/$f" | |
1628 | ;; | |
64ccbc99 | 1629 | esac |
af5e4ada | 1630 | done |
46f18e7b | 1631 | |
11642c3a | 1632 | tm_p_file_list= |
e22340b0 | 1633 | tm_p_include_list= |
11642c3a | 1634 | for f in $tm_p_file; do |
4977bab6 ZW |
1635 | case $f in |
1636 | tm-preds.h ) | |
e22340b0 ZW |
1637 | tm_p_file_list="${tm_p_file_list} $f" |
1638 | tm_p_include_list="${tm_p_include_list} $f" | |
1639 | ;; | |
1640 | * ) | |
1641 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1642 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1643 | esac | |
1644 | done | |
1645 | ||
1646 | xm_file_list= | |
1647 | xm_include_list= | |
1648 | for f in $xm_file; do | |
1649 | case $f in | |
1650 | ansidecl.h ) | |
1651 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1652 | xm_include_list="${xm_include_list} $f" | |
1653 | ;; | |
1654 | auto-host.h ) | |
1655 | xm_file_list="${xm_file_list} $f" | |
1656 | xm_include_list="${xm_include_list} $f" | |
1657 | ;; | |
1658 | * ) | |
1659 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1660 | xm_include_list="${xm_include_list} config/$f" | |
1661 | ;; | |
4977bab6 | 1662 | esac |
11642c3a ZW |
1663 | done |
1664 | ||
af5e4ada | 1665 | host_xm_file_list= |
e22340b0 | 1666 | host_xm_include_list= |
af5e4ada | 1667 | for f in $host_xm_file; do |
64ccbc99 | 1668 | case $f in |
d02af173 | 1669 | ansidecl.h ) |
e22340b0 ZW |
1670 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
1671 | host_xm_include_list="${host_xm_include_list} $f" | |
1672 | ;; | |
e2500fed | 1673 | auto-host.h ) |
e22340b0 ZW |
1674 | host_xm_file_list="${host_xm_file_list} $f" |
1675 | host_xm_include_list="${host_xm_include_list} $f" | |
1676 | ;; | |
1677 | * ) | |
1678 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1679 | host_xm_include_list="${host_xm_include_list} config/$f" | |
1680 | ;; | |
64ccbc99 | 1681 | esac |
af5e4ada DE |
1682 | done |
1683 | ||
1684 | build_xm_file_list= | |
1685 | for f in $build_xm_file; do | |
64ccbc99 | 1686 | case $f in |
d02af173 | 1687 | ansidecl.h ) |
e22340b0 ZW |
1688 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
1689 | build_xm_include_list="${build_xm_include_list} $f" | |
1690 | ;; | |
e2500fed | 1691 | auto-build.h | auto-host.h ) |
e22340b0 ZW |
1692 | build_xm_file_list="${build_xm_file_list} $f" |
1693 | build_xm_include_list="${build_xm_include_list} $f" | |
1694 | ;; | |
1695 | * ) | |
1696 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1697 | build_xm_include_list="${build_xm_include_list} config/$f" | |
1698 | ;; | |
64ccbc99 | 1699 | esac |
af5e4ada | 1700 | done |
46f18e7b | 1701 | |
2989d30c GK |
1702 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
1703 | # cross-compiler which does not use the native headers and libraries. | |
a078a589 ZW |
1704 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
1705 | CROSS= AC_SUBST(CROSS) | |
1706 | ALL=all.internal AC_SUBST(ALL) | |
1707 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
b28250ab MM |
1708 | |
1709 | if test "x$with_build_sysroot" != x; then | |
14da6073 | 1710 | build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' |
b28250ab MM |
1711 | else |
1712 | # This value is used, even on a native system, because | |
1713 | # CROSS_SYSTEM_HEADER_DIR is just | |
1714 | # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR). | |
1715 | build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)' | |
1716 | fi | |
1717 | ||
75bffa71 | 1718 | if test x$host != x$target |
af5e4ada | 1719 | then |
2989d30c | 1720 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" |
a078a589 | 1721 | ALL=all.cross |
160633c6 | 1722 | SYSTEM_HEADER_DIR=$build_system_header_dir |
343f59d9 | 1723 | case "$host","$target" in |
3a7e8b87 GK |
1724 | # Darwin crosses can use the host system's libraries and headers, |
1725 | # because of the fat library support. Of course, it must be the | |
1726 | # same version of Darwin on both sides. Allow the user to | |
1727 | # just say --target=foo-darwin without a version number to mean | |
1728 | # "the version on this system". | |
1729 | *-*-darwin*,*-*-darwin*) | |
1730 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1731 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1732 | if test $hostos = $targetos -o $targetos = darwin ; then | |
1733 | CROSS= | |
1734 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1735 | with_headers=yes | |
1736 | fi | |
1737 | ;; | |
1738 | ||
343f59d9 AM |
1739 | i?86-*-*,x86_64-*-* \ |
1740 | | powerpc*-*-*,powerpc64*-*-*) | |
1741 | CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1742 | esac | |
7a615b25 | 1743 | elif test "x$TARGET_SYSTEM_ROOT" != x; then |
b28250ab | 1744 | SYSTEM_HEADER_DIR=$build_system_header_dir |
af5e4ada | 1745 | fi |
46f18e7b | 1746 | |
b39d221a EC |
1747 | # If this is a cross-compiler that does not |
1748 | # have its own set of headers then define | |
1749 | # inhibit_libc | |
1750 | ||
dc06db20 R |
1751 | # If this is using newlib, without having the headers available now, |
1752 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
fecd6201 ZW |
1753 | # This prevents libgcc2 from containing any code which requires libc |
1754 | # support. | |
a929bc28 | 1755 | : ${inhibit_libc=false} |
dc06db20 R |
1756 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
1757 | test x$with_newlib = xyes ; } && | |
e50084fa | 1758 | { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then |
160633c6 | 1759 | inhibit_libc=true |
b39d221a EC |
1760 | fi |
1761 | AC_SUBST(inhibit_libc) | |
1762 | ||
a078a589 ZW |
1763 | # When building gcc with a cross-compiler, we need to adjust things so |
1764 | # that the generator programs are still built with the native compiler. | |
52c0e446 | 1765 | # Also, we cannot run fixincludes. |
a078a589 ZW |
1766 | |
1767 | # These are the normal (build=host) settings: | |
eaf9f3b2 | 1768 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
4977bab6 | 1769 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
f8c33439 | 1770 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
a078a589 | 1771 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
587dc9c6 | 1772 | |
83599948 NS |
1773 | # And these apply if build != host, or we are generating coverage data |
1774 | if test x$build != x$host || test "x$coverage_flags" != x | |
af5e4ada | 1775 | then |
b11e4747 | 1776 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
f8c33439 | 1777 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
af5e4ada | 1778 | fi |
46f18e7b | 1779 | |
ae3a15bb DE |
1780 | # Expand extra_headers to include complete path. |
1781 | # This substitutes for lots of t-* files. | |
1782 | extra_headers_list= | |
b1ef58c8 NN |
1783 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
1784 | for file in ${extra_headers} ; do | |
1785 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1786 | done | |
ae3a15bb | 1787 | |
1617e5ee GK |
1788 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
1789 | if test x"$use_gcc_tgmath" = xyes | |
1790 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
1791 | fi | |
1792 | ||
c38f02df ILT |
1793 | # Define collect2 in Makefile. |
1794 | case $host_can_use_collect2 in | |
1795 | no) collect2= ;; | |
1796 | *) collect2='collect2$(exeext)' ;; | |
1797 | esac | |
1798 | AC_SUBST([collect2]) | |
1799 | ||
af5e4ada | 1800 | # Add a definition of USE_COLLECT2 if system wants one. |
34a86c2b NN |
1801 | case $use_collect2 in |
1802 | no) use_collect2= ;; | |
1803 | "") ;; | |
1804 | *) | |
1805 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1806 | xm_defines="${xm_defines} USE_COLLECT2" | |
c38f02df ILT |
1807 | case $host_can_use_collect2 in |
1808 | no) | |
1809 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1810 | ;; | |
1811 | esac | |
34a86c2b NN |
1812 | ;; |
1813 | esac | |
af5e4ada | 1814 | |
630327c3 NN |
1815 | # --------------------------- |
1816 | # Assembler & linker features | |
1817 | # --------------------------- | |
1818 | ||
da0f6381 PB |
1819 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
1820 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
1821 | # However when ld-new is first executed from the build tree, libtool will | |
1822 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
1823 | # to the build tree. While doing this we need to use the previous-stage | |
1824 | # linker, or we have an infinite loop. The presence of a shell script as | |
1825 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
1826 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
1827 | # exec-tool will fail. | |
1828 | ||
1829 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
1830 | AC_PROG_LIBTOOL | |
1831 | AC_SUBST(objdir) | |
1832 | AC_SUBST(enable_fast_install) | |
1833 | ||
d869a8c4 NN |
1834 | # Identify the assembler which will work hand-in-glove with the newly |
1835 | # built GCC, so that we can examine its features. This is the assembler | |
1836 | # which will be driven by the driver program. | |
1837 | # | |
1838 | # If build != host, and we aren't building gas in-tree, we identify a | |
1839 | # build->target assembler and hope that it will have the same features | |
1840 | # as the host->target assembler we'll be using. | |
981d4858 JM |
1841 | gcc_cv_gas_major_version= |
1842 | gcc_cv_gas_minor_version= | |
a2f319ea | 1843 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
e8b05380 PB |
1844 | |
1845 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
1846 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
3ccc3a56 AO |
1847 | if test -x "$DEFAULT_ASSEMBLER"; then |
1848 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
34a86c2b | 1849 | elif test -f $gcc_cv_as_gas_srcdir/configure.in \ |
08d105fa AO |
1850 | && test -f ../gas/Makefile \ |
1851 | && test x$build = x$host; then | |
e8b05380 PB |
1852 | gcc_cv_as=../gas/as-new$build_exeext |
1853 | elif test -x as$build_exeext; then | |
1854 | # Build using assembler in the current directory. | |
1855 | gcc_cv_as=./as$build_exeext | |
1856 | elif test -x $AS_FOR_TARGET; then | |
1857 | gcc_cv_as="$AS_FOR_TARGET" | |
1858 | else | |
1859 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
1860 | fi]) | |
1861 | ||
1862 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
1863 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
be0fe523 PB |
1864 | case "$ORIGINAL_AS_FOR_TARGET" in |
1865 | ./as | ./as$build_exeext) ;; | |
1866 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
1867 | esac | |
e8b05380 PB |
1868 | |
1869 | AC_MSG_CHECKING(what assembler to use) | |
1870 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
08d105fa AO |
1871 | # Single tree build which includes gas. We want to prefer it |
1872 | # over whatever linker top-level may have detected, since | |
1873 | # we'll use what we're building after installation anyway. | |
e8b05380 | 1874 | AC_MSG_RESULT(newly built gas) |
ad9c4d9f NN |
1875 | in_tree_gas=yes |
1876 | _gcc_COMPUTE_GAS_VERSION | |
5408ac6c HPN |
1877 | in_tree_gas_is_elf=no |
1878 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1879 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
1880 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1881 | then | |
1882 | in_tree_gas_is_elf=yes | |
1883 | fi | |
e8b05380 PB |
1884 | else |
1885 | AC_MSG_RESULT($gcc_cv_as) | |
1886 | in_tree_gas=no | |
981d4858 JM |
1887 | fi |
1888 | ||
d869a8c4 NN |
1889 | # Identify the linker which will work hand-in-glove with the newly |
1890 | # built GCC, so that we can examine its features. This is the linker | |
1891 | # which will be driven by the driver program. | |
1892 | # | |
1893 | # If build != host, and we aren't building gas in-tree, we identify a | |
1894 | # build->target linker and hope that it will have the same features | |
1895 | # as the host->target linker we'll be using. | |
275b60d6 JJ |
1896 | gcc_cv_gld_major_version= |
1897 | gcc_cv_gld_minor_version= | |
1898 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1899 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
e8b05380 PB |
1900 | |
1901 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
275b60d6 JJ |
1902 | if test -x "$DEFAULT_LINKER"; then |
1903 | gcc_cv_ld="$DEFAULT_LINKER" | |
34a86c2b | 1904 | elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ |
08d105fa AO |
1905 | && test -f ../ld/Makefile \ |
1906 | && test x$build = x$host; then | |
e8b05380 PB |
1907 | gcc_cv_ld=../ld/ld-new$build_exeext |
1908 | elif test -x collect-ld$build_exeext; then | |
1909 | # Build using linker in the current directory. | |
1910 | gcc_cv_ld=./collect-ld$build_exeext | |
1911 | elif test -x $LD_FOR_TARGET; then | |
1912 | gcc_cv_ld="$LD_FOR_TARGET" | |
1913 | else | |
1914 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
1915 | fi]) | |
1916 | ||
1917 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld | |
1918 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
be0fe523 PB |
1919 | case "$ORIGINAL_LD_FOR_TARGET" in |
1920 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
1921 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
1922 | esac | |
e8b05380 PB |
1923 | |
1924 | AC_MSG_CHECKING(what linker to use) | |
1925 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then | |
08d105fa AO |
1926 | # Single tree build which includes ld. We want to prefer it |
1927 | # over whatever linker top-level may have detected, since | |
1928 | # we'll use what we're building after installation anyway. | |
e8b05380 | 1929 | AC_MSG_RESULT(newly built ld) |
34a86c2b | 1930 | in_tree_ld=yes |
5408ac6c HPN |
1931 | in_tree_ld_is_elf=no |
1932 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
8a45d680 AN |
1933 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
1934 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
5408ac6c HPN |
1935 | in_tree_ld_is_elf=yes |
1936 | fi | |
275b60d6 JJ |
1937 | for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in |
1938 | do | |
1939 | changequote(,)dnl | |
58ea87a9 | 1940 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` |
275b60d6 JJ |
1941 | if test x$gcc_cv_gld_version != x; then |
1942 | break | |
1943 | fi | |
1944 | done | |
275b60d6 JJ |
1945 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
1946 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1947 | changequote([,])dnl | |
e8b05380 PB |
1948 | else |
1949 | AC_MSG_RESULT($gcc_cv_ld) | |
1950 | in_tree_ld=no | |
275b60d6 JJ |
1951 | fi |
1952 | ||
981d4858 | 1953 | # Figure out what nm we will be using. |
f9c1196a | 1954 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
e8b05380 | 1955 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
9f18db39 | 1956 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
c15b113b DD |
1957 | && test -f ../binutils/Makefile \ |
1958 | && test x$build = x$host; then | |
9f18db39 PB |
1959 | gcc_cv_nm=../binutils/nm-new$build_exeext |
1960 | elif test -x nm$build_exeext; then | |
57991eba | 1961 | gcc_cv_nm=./nm$build_exeext |
e8b05380 PB |
1962 | elif test -x $NM_FOR_TARGET; then |
1963 | gcc_cv_nm="$NM_FOR_TARGET" | |
1964 | else | |
1965 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
1966 | fi]) | |
9f18db39 | 1967 | |
9f18db39 | 1968 | AC_MSG_CHECKING(what nm to use) |
e8b05380 PB |
1969 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
1970 | # Single tree build which includes binutils. | |
1971 | AC_MSG_RESULT(newly built nm) | |
1972 | in_tree_nm=yes | |
1973 | else | |
1974 | AC_MSG_RESULT($gcc_cv_nm) | |
1975 | in_tree_nm=no | |
1976 | fi | |
1977 | ||
1978 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
1979 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
be0fe523 PB |
1980 | case "$ORIGINAL_NM_FOR_TARGET" in |
1981 | ./nm | ./nm$build_exeext) ;; | |
1982 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
1983 | esac | |
1984 | ||
981d4858 | 1985 | |
3cae5780 | 1986 | # Figure out what objdump we will be using. |
e8b05380 | 1987 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
d739199a | 1988 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
c15b113b DD |
1989 | && test -f ../binutils/Makefile \ |
1990 | && test x$build = x$host; then | |
f9c1196a | 1991 | # Single tree build which includes binutils. |
9f18db39 | 1992 | gcc_cv_objdump=../binutils/objdump$build_exeext |
d739199a DJ |
1993 | elif test -x objdump$build_exeext; then |
1994 | gcc_cv_objdump=./objdump$build_exeext | |
e8b05380 PB |
1995 | elif test -x $OBJDUMP_FOR_TARGET; then |
1996 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" | |
1997 | else | |
1998 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
1999 | fi]) | |
d739199a | 2000 | |
d739199a | 2001 | AC_MSG_CHECKING(what objdump to use) |
e8b05380 PB |
2002 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2003 | # Single tree build which includes binutils. | |
2004 | AC_MSG_RESULT(newly built objdump) | |
2005 | elif test x$gcc_cv_objdump = x; then | |
2006 | AC_MSG_RESULT(not found) | |
2007 | else | |
2008 | AC_MSG_RESULT($gcc_cv_objdump) | |
2009 | fi | |
3cae5780 | 2010 | |
6e97481b JJ |
2011 | # Figure out what readelf we will be using. |
2012 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
2013 | if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
2014 | && test -f ../binutils/Makefile \ | |
2015 | && test x$build = x$host; then | |
2016 | # Single tree build which includes binutils. | |
2017 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2018 | elif test -x readelf$build_exeext; then | |
2019 | gcc_cv_readelf=./readelf$build_exeext | |
2020 | else | |
2021 | AC_PATH_PROG(gcc_cv_readelf, readelf) | |
2022 | fi]) | |
2023 | ||
2024 | AC_MSG_CHECKING(what readelf to use) | |
2025 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2026 | # Single tree build which includes binutils. | |
2027 | AC_MSG_RESULT(newly built readelf) | |
2028 | elif test x$gcc_cv_readelf = x; then | |
2029 | AC_MSG_RESULT(not found) | |
2030 | else | |
2031 | AC_MSG_RESULT($gcc_cv_readelf) | |
2032 | fi | |
2033 | ||
981d4858 | 2034 | # Figure out what assembler alignment features are present. |
8ada417f ZW |
2035 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2036 | [2,6,0],, | |
2037 | [.balign 4 | |
2038 | .p2align 2],, | |
2039 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2040 | [Define if your assembler supports .balign and .p2align.])]) | |
2041 | ||
2042 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2043 | [2,8,0],, | |
2044 | [.p2align 4,,7],, | |
2045 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2046 | [Define if your assembler supports specifying the maximum number | |
2047 | of bytes to skip when using the GAS .p2align command.])]) | |
2048 | ||
5708d18d MS |
2049 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2050 | [2,8,0],, | |
2051 | [.literal16],, | |
2052 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2053 | [Define if your assembler supports .literal16.])]) | |
2054 | ||
8ada417f ZW |
2055 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2056 | [elf,2,9,0],, | |
2057 | [conftest_label1: .word 0 | |
d1accaa3 JJ |
2058 | .subsection -1 |
2059 | conftest_label2: .word 0 | |
8ada417f ZW |
2060 | .previous], |
2061 | [if test x$gcc_cv_nm != x; then | |
2062 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2063 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2064 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2065 | then : | |
2066 | else gcc_cv_as_subsection_m1=yes | |
2067 | fi | |
2068 | rm -f conftest.nm1 conftest.nm2 | |
2069 | fi], | |
2070 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2071 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2072 | emitting at the beginning of your section.])]) | |
2073 | ||
2074 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2075 | [2,2,0],, | |
2076 | [ .weak foobar],, | |
2077 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2078 | ||
a0203ca7 AO |
2079 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2080 | [2,17,0],, | |
2081 | [ .weakref foobar, barfnot],, | |
2082 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2083 | ||
e41f3691 JDA |
2084 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2085 | [2,15,91],, | |
2086 | [ .SPACE $TEXT$ | |
2087 | .NSUBSPA $CODE$,COMDAT],, | |
2088 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2089 | ||
8ada417f ZW |
2090 | # .hidden needs to be supported in both the assembler and the linker, |
2091 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2092 | # This is irritatingly difficult to feature test for; we have to check the | |
2093 | # date string after the version number. If we've got an in-tree | |
2094 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2095 | # to be safe. | |
2096 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2097 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2098 | [elf,2,13,0],, | |
2099 | [ .hidden foobar | |
2100 | foobar:]) | |
2101 | ||
2102 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2103 | [if test $in_tree_ld = yes ; then | |
2104 | gcc_cv_ld_hidden=no | |
2105 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2106 | && test $in_tree_ld_is_elf = yes; then | |
2107 | gcc_cv_ld_hidden=yes | |
2108 | fi | |
2109 | else | |
5e87dc23 | 2110 | changequote(,)dnl |
8ada417f | 2111 | gcc_cv_ld_hidden=yes |
bace148a | 2112 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` |
8ada417f | 2113 | if echo "$ld_ver" | grep GNU > /dev/null; then |
8ada417f | 2114 | ld_vers=`echo $ld_ver | sed -n \ |
115e6e55 | 2115 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
8ada417f | 2116 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
11176d2a JB |
2117 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2118 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2119 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
8ada417f ZW |
2120 | if test 0"$ld_date" -lt 20020404; then |
2121 | if test -n "$ld_date"; then | |
2122 | # If there was date string, but was earlier than 2002-04-04, fail | |
2123 | gcc_cv_ld_hidden=no | |
2124 | elif test -z "$ld_vers"; then | |
2125 | # If there was no date string nor ld version number, something is wrong | |
2126 | gcc_cv_ld_hidden=no | |
2127 | else | |
8ada417f ZW |
2128 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2129 | if test "$ld_vers_major" -lt 2; then | |
2130 | gcc_cv_ld_hidden=no | |
2131 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2132 | gcc_cv_ld_hidden="no" | |
2133 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2134 | gcc_cv_ld_hidden=no | |
c72931a6 | 2135 | fi |
8ada417f | 2136 | fi |
789b7de5 | 2137 | fi |
8ada417f | 2138 | else |
28690784 | 2139 | case "${target}" in |
b0fd7d27 | 2140 | hppa64*-*-hpux* | ia64*-*-hpux*) |
28690784 JDA |
2141 | gcc_cv_ld_hidden=yes |
2142 | ;; | |
5e87dc23 RO |
2143 | *-*-solaris2.9* | *-*-solaris2.1[0-9]*) |
2144 | gcc_cv_ld_hidden=yes | |
2145 | ;; | |
28690784 JDA |
2146 | *) |
2147 | gcc_cv_ld_hidden=no | |
2148 | ;; | |
2149 | esac | |
8ada417f | 2150 | fi |
5e87dc23 | 2151 | changequote([,])dnl |
8ada417f ZW |
2152 | fi]) |
2153 | libgcc_visibility=no | |
9e944a16 | 2154 | AC_SUBST(libgcc_visibility) |
232b67d9 | 2155 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0f31374d | 2156 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
8ada417f ZW |
2157 | libgcc_visibility=yes |
2158 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2159 | [Define if your assembler and linker support .hidden.]) | |
2160 | fi | |
6a9c5260 | 2161 | |
e73da78e RO |
2162 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2163 | gcc_cv_ld_ro_rw_mix=unknown | |
2164 | if test $in_tree_ld = yes ; then | |
2165 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2166 | && test $in_tree_ld_is_elf = yes; then | |
2167 | gcc_cv_ld_ro_rw_mix=read-write | |
2168 | fi | |
2169 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2170 | echo '.section myfoosect, "a"' > conftest1.s | |
2171 | echo '.section myfoosect, "aw"' > conftest2.s | |
2172 | echo '.byte 1' >> conftest2.s | |
2173 | echo '.section myfoosect, "a"' > conftest3.s | |
2174 | echo '.byte 0' >> conftest3.s | |
2175 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2176 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2177 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2178 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2179 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2180 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2181 | | sed -e '/myfoosect/!d' -e N` | |
2182 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2183 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2184 | gcc_cv_ld_ro_rw_mix=read-only | |
2185 | else | |
2186 | gcc_cv_ld_ro_rw_mix=read-write | |
2187 | fi | |
2188 | fi | |
2189 | fi | |
2190 | changequote(,)dnl | |
2191 | rm -f conftest.* conftest[123].* | |
2192 | changequote([,])dnl | |
2193 | fi | |
2194 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2195 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2196 | [Define if your linker links a mix of read-only | |
2197 | and read-write sections into a read-write section.]) | |
2198 | fi | |
2199 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2200 | ||
8ada417f ZW |
2201 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2202 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2203 | [elf,2,11,0],, | |
2204 | [ .data | |
b7460f24 RH |
2205 | .uleb128 L2 - L1 |
2206 | L1: | |
2207 | .uleb128 1280 | |
2208 | .sleb128 -1010 | |
8ada417f ZW |
2209 | L2:], |
2210 | [# GAS versions before 2.11 do not support uleb128, | |
2211 | # despite appearing to. | |
2212 | # ??? There exists an elf-specific test that will crash | |
2213 | # the assembler. Perhaps it's better to figure out whether | |
2214 | # arbitrary sections are supported and try the test. | |
bace148a | 2215 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
8ada417f | 2216 | if echo "$as_ver" | grep GNU > /dev/null; then |
78e766a0 | 2217 | changequote(,)dnl |
ddcd0f6f | 2218 | as_vers=`echo $as_ver | sed -n \ |
115e6e55 | 2219 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
ddcd0f6f BS |
2220 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2221 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
78e766a0 | 2222 | changequote([,])dnl |
8ada417f ZW |
2223 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2224 | then : | |
2225 | else gcc_cv_as_leb128=yes | |
2226 | fi | |
2227 | fi], | |
2228 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2229 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2230 | ||
d4ea4622 RH |
2231 | # Check if we have assembler support for unwind directives. |
2232 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
6e60703f | 2233 | ,, |
d4ea4622 RH |
2234 | [ .text |
2235 | .cfi_startproc | |
2236 | .cfi_offset 0, 0 | |
2237 | .cfi_same_value 1 | |
2238 | .cfi_def_cfa 1, 2 | |
2239 | .cfi_escape 1, 2, 3, 4, 5 | |
e73da78e RO |
2240 | .cfi_endproc], |
2241 | [case "$target" in | |
2242 | *-*-solaris*) | |
2243 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2244 | # read-only and read-write sections, we need to make sure that the | |
2245 | # assembler used emits read-write .eh_frame sections. | |
2246 | if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then | |
2247 | if test "x$gcc_cv_objdump" != x; then | |
2248 | if $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2249 | sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then | |
2250 | gcc_cv_as_cfi_directive=no | |
2251 | else | |
2252 | gcc_cv_as_cfi_directive=yes | |
2253 | fi | |
2254 | else | |
2255 | # no objdump, err on the side of caution | |
2256 | gcc_cv_as_cfi_directive=no | |
2257 | fi | |
2258 | else | |
2259 | gcc_cv_as_cfi_directive=yes | |
2260 | fi | |
2261 | ;; | |
2262 | *-*-*) | |
2263 | gcc_cv_as_cfi_directive=yes | |
2264 | ;; | |
2265 | esac]) | |
6e97481b JJ |
2266 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then |
2267 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, | |
2268 | ,, | |
2269 | [ .text | |
2270 | .cfi_startproc | |
2271 | .cfi_adjust_cfa_offset 64 | |
2272 | .skip 512, 0 | |
2273 | .cfi_adjust_cfa_offset 128 | |
2274 | .cfi_endproc], | |
2275 | [ | |
2276 | changequote(,)dnl | |
2277 | if $gcc_cv_readelf -wf conftest.o 2>/dev/null \ | |
2278 | | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then | |
2279 | gcc_cv_as_cfi_advance_working=yes | |
2280 | fi | |
2281 | changequote([,])dnl | |
2282 | ]) | |
2283 | else | |
66f91112 EB |
2284 | # no readelf, err on the side of caution |
2285 | gcc_cv_as_cfi_advance_working=no | |
6e97481b | 2286 | fi |
d4ea4622 | 2287 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
6e97481b JJ |
2288 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2289 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
058514b3 RH |
2290 | [Define 0/1 if your assembler supports CFI directives.]) |
2291 | ||
2292 | gcc_GAS_CHECK_FEATURE([cfi personality directive], | |
6e60703f | 2293 | gcc_cv_as_cfi_personality_directive, ,, |
058514b3 | 2294 | [ .text |
042628f9 | 2295 | .cfi_startproc |
058514b3 RH |
2296 | .cfi_personality 0, symbol |
2297 | .cfi_endproc]) | |
2298 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
2299 | [`if test $gcc_cv_as_cfi_personality_directive = yes; | |
2300 | then echo 1; else echo 0; fi`], | |
2301 | [Define 0/1 if your assembler supports .cfi_personality.]) | |
d4ea4622 | 2302 | |
8ada417f ZW |
2303 | # GAS versions up to and including 2.11.0 may mis-optimize |
2304 | # .eh_frame data. | |
2305 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2306 | [elf,2,12,0],, | |
2307 | [ .text | |
c64688ae RH |
2308 | .LFB1: |
2309 | .4byte 0 | |
2310 | .L1: | |
2311 | .4byte 0 | |
2312 | .LFE1: | |
2313 | .section .eh_frame,"aw",@progbits | |
2314 | __FRAME_BEGIN__: | |
2315 | .4byte .LECIE1-.LSCIE1 | |
2316 | .LSCIE1: | |
2317 | .4byte 0x0 | |
2318 | .byte 0x1 | |
2319 | .ascii "z\0" | |
2320 | .byte 0x1 | |
2321 | .byte 0x78 | |
2322 | .byte 0x1a | |
2323 | .byte 0x0 | |
2324 | .byte 0x4 | |
2325 | .4byte 1 | |
2326 | .p2align 1 | |
2327 | .LECIE1: | |
2328 | .LSFDE1: | |
2329 | .4byte .LEFDE1-.LASFDE1 | |
2330 | .LASFDE1: | |
2331 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2332 | .4byte .LFB1 | |
2333 | .4byte .LFE1-.LFB1 | |
2334 | .byte 0x4 | |
2335 | .4byte .LFE1-.LFB1 | |
2336 | .byte 0x4 | |
2337 | .4byte .L1-.LFB1 | |
8ada417f | 2338 | .LEFDE1:], |
ba479fd2 NN |
2339 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
2340 | cat > conftest.lit <<EOF | |
c64688ae RH |
2341 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
2342 | 0010 01000000 12000000 18000000 00000000 ................ | |
ba479fd2 | 2343 | 0020 08000000 04080000 0044 .........D @&t@ |
01efb963 | 2344 | EOF |
ba479fd2 | 2345 | cat > conftest.big <<EOF |
01efb963 AS |
2346 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
2347 | 0010 00000001 00000012 00000018 00000000 ................ | |
ba479fd2 | 2348 | 0020 00000008 04000000 0844 .........D @&t@ |
c64688ae | 2349 | EOF |
8ada417f ZW |
2350 | # If the assembler didn't choke, and we can objdump, |
2351 | # and we got the correct data, then succeed. | |
dbc02e7f AS |
2352 | # The text in the here-document typically retains its unix-style line |
2353 | # endings, while the output of objdump will use host line endings. | |
2354 | # Therefore, use diff -b for the comparisons. | |
8ada417f ZW |
2355 | if test x$gcc_cv_objdump != x \ |
2356 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2357 | | tail -3 > conftest.got \ | |
dbc02e7f AS |
2358 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
2359 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
8ada417f ZW |
2360 | then |
2361 | gcc_cv_as_eh_frame=yes | |
2362 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2363 | gcc_cv_as_eh_frame=buggy | |
2364 | else | |
2365 | # Uh oh, what do we do now? | |
2366 | gcc_cv_as_eh_frame=no | |
2367 | fi]) | |
2368 | ||
2369 | if test $gcc_cv_as_eh_frame = buggy; then | |
2370 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2371 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
201556f0 | 2372 | fi |
201556f0 | 2373 | |
8ada417f ZW |
2374 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
2375 | [elf,2,12,0], [--fatal-warnings], | |
5d4856a0 | 2376 | [.section .rodata.str, "aMS", @progbits, 1]) |
c18a5b6c MM |
2377 | if test $gcc_cv_as_shf_merge = no; then |
2378 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2379 | [elf,2,12,0], [--fatal-warnings], | |
2380 | [.section .rodata.str, "aMS", %progbits, 1]) | |
2381 | fi | |
5d4856a0 RO |
2382 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
2383 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2384 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
8ada417f | 2385 | |
c18a5b6c | 2386 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, |
11176d2a | 2387 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
2388 | [.section .text,"axG",@progbits,.foo,comdat]) |
2389 | if test $gcc_cv_as_comdat_group = yes; then | |
2390 | gcc_cv_as_comdat_group_percent=no | |
2391 | else | |
2392 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
11176d2a | 2393 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
2394 | [.section .text,"axG",%progbits,.foo,comdat]) |
2395 | fi | |
11176d2a JB |
2396 | if test $in_tree_ld != yes && test x"$ld_vers" != x; then |
2397 | comdat_group=yes | |
2398 | if test 0"$ld_date" -lt 20050308; then | |
2399 | if test -n "$ld_date"; then | |
2400 | # If there was date string, but was earlier than 2005-03-08, fail | |
2401 | comdat_group=no | |
2402 | elif test "$ld_vers_major" -lt 2; then | |
2403 | comdat_group=no | |
2404 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
2405 | comdat_group=no | |
2406 | fi | |
2407 | fi | |
1cf0118d RO |
2408 | else |
2409 | # assume linkers other than GNU ld don't support COMDAT group | |
2410 | comdat_group=no | |
2411 | fi | |
2412 | if test $comdat_group = no; then | |
2413 | gcc_cv_as_comdat_group=no | |
2414 | gcc_cv_as_comdat_group_percent=no | |
11176d2a JB |
2415 | fi |
2416 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
c18a5b6c | 2417 | [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], |
11176d2a | 2418 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
c18a5b6c | 2419 | |
6c52e687 CC |
2420 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
2421 | gcc_cv_as_discriminator, | |
2422 | [2,19,51],, | |
2423 | [ .text | |
2424 | .file 1 "conf.c" | |
2425 | .loc 1 1 0 discriminator 1],, | |
2426 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
2427 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
2428 | ||
6a7a462c | 2429 | # Thread-local storage - the check is heavily parameterized. |
f996902d RH |
2430 | conftest_s= |
2431 | tls_first_major= | |
2432 | tls_first_minor= | |
9739c90c | 2433 | tls_as_opt= |
f996902d RH |
2434 | case "$target" in |
2435 | changequote(,)dnl | |
6f9b006d RH |
2436 | alpha*-*-*) |
2437 | conftest_s=' | |
2438 | .section ".tdata","awT",@progbits | |
2439 | foo: .long 25 | |
2440 | .text | |
2441 | ldq $27,__tls_get_addr($29) !literal!1 | |
2442 | lda $16,foo($29) !tlsgd!1 | |
2443 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2444 | ldq $27,__tls_get_addr($29) !literal!2 | |
2445 | lda $16,foo($29) !tlsldm!2 | |
2446 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2447 | ldq $1,foo($29) !gotdtprel | |
2448 | ldah $2,foo($29) !dtprelhi | |
2449 | lda $3,foo($2) !dtprello | |
2450 | lda $4,foo($29) !dtprel | |
2451 | ldq $1,foo($29) !gottprel | |
2452 | ldah $2,foo($29) !tprelhi | |
2453 | lda $3,foo($2) !tprello | |
2454 | lda $4,foo($29) !tprel' | |
2455 | tls_first_major=2 | |
2456 | tls_first_minor=13 | |
2f3321ca | 2457 | tls_as_opt=--fatal-warnings |
6f9b006d | 2458 | ;; |
ad9646c7 HPN |
2459 | cris-*-*|crisv32-*-*) |
2460 | conftest_s=' | |
2461 | .section ".tdata","awT",@progbits | |
2462 | x: .long 25 | |
2463 | .text | |
2464 | move.d x:IE,$r10 | |
2465 | nop' | |
2466 | tls_first_major=2 | |
2467 | tls_first_minor=20 | |
2468 | tls_as_opt=--fatal-warnings | |
2469 | ;; | |
e4dd71de AH |
2470 | frv*-*-*) |
2471 | conftest_s=' | |
2472 | .section ".tdata","awT",@progbits | |
2473 | x: .long 25 | |
2474 | .text | |
2475 | call #gettlsoff(x)' | |
2476 | tls_first_major=2 | |
2477 | tls_first_minor=14 | |
2478 | ;; | |
51076f96 RC |
2479 | hppa*-*-linux*) |
2480 | conftest_s=' | |
2481 | t1: .reg %r20 | |
2482 | t2: .reg %r21 | |
2483 | gp: .reg %r19 | |
2484 | .section ".tdata","awT",@progbits | |
2485 | foo: .long 25 | |
2486 | .text | |
2487 | .align 4 | |
2488 | addil LT%foo-$tls_gdidx$,gp | |
2489 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
2490 | b __tls_get_addr | |
2491 | nop | |
2492 | addil LT%foo-$tls_ldidx$,gp | |
2493 | b __tls_get_addr | |
2494 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
2495 | addil LR%foo-$tls_dtpoff$,%ret0 | |
2496 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
2497 | mfctl %cr27,%t1 | |
2498 | addil LT%foo-$tls_ieoff$,gp | |
2499 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
2500 | add %t1,%t2,%t3 | |
2501 | mfctl %cr27,%t1 | |
2502 | addil LR%foo-$tls_leoff$,%t1 | |
2503 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
2504 | tls_first_major=2 | |
2505 | tls_first_minor=15 | |
2506 | tls_as_opt=--fatal-warnings | |
2507 | ;; | |
d3585b76 DJ |
2508 | arm*-*-*) |
2509 | conftest_s=' | |
2510 | .section ".tdata","awT",%progbits | |
2511 | foo: .long 25 | |
2512 | .text | |
2513 | .word foo(gottpoff) | |
2514 | .word foo(tpoff) | |
2515 | .word foo(tlsgd) | |
2516 | .word foo(tlsldm) | |
2517 | .word foo(tlsldo)' | |
2518 | tls_first_major=2 | |
2519 | tls_first_minor=17 | |
2520 | ;; | |
f996902d | 2521 | i[34567]86-*-*) |
f996902d RH |
2522 | conftest_s=' |
2523 | .section ".tdata","awT",@progbits | |
2524 | foo: .long 25 | |
2525 | .text | |
2526 | movl %gs:0, %eax | |
2527 | leal foo@TLSGD(,%ebx,1), %eax | |
2528 | leal foo@TLSLDM(%ebx), %eax | |
2529 | leal foo@DTPOFF(%eax), %edx | |
2530 | movl foo@GOTTPOFF(%ebx), %eax | |
2531 | subl foo@GOTTPOFF(%ebx), %eax | |
75d38379 JJ |
2532 | addl foo@GOTNTPOFF(%ebx), %eax |
2533 | movl foo@INDNTPOFF, %eax | |
f996902d RH |
2534 | movl $foo@TPOFF, %eax |
2535 | subl $foo@TPOFF, %eax | |
2536 | leal foo@NTPOFF(%ecx), %eax' | |
2537 | tls_first_major=2 | |
75d38379 | 2538 | tls_first_minor=14 |
2f3321ca | 2539 | tls_as_opt=--fatal-warnings |
75d38379 JJ |
2540 | ;; |
2541 | x86_64-*-*) | |
2542 | conftest_s=' | |
2543 | .section ".tdata","awT",@progbits | |
2544 | foo: .long 25 | |
2545 | .text | |
2546 | movq %fs:0, %rax | |
2547 | leaq foo@TLSGD(%rip), %rdi | |
2548 | leaq foo@TLSLD(%rip), %rdi | |
2549 | leaq foo@DTPOFF(%rax), %rdx | |
2550 | movq foo@GOTTPOFF(%rip), %rax | |
2551 | movq $foo@TPOFF, %rax' | |
2552 | tls_first_major=2 | |
2553 | tls_first_minor=14 | |
2f3321ca | 2554 | tls_as_opt=--fatal-warnings |
f996902d | 2555 | ;; |
7b6e506e RH |
2556 | ia64-*-*) |
2557 | conftest_s=' | |
2558 | .section ".tdata","awT",@progbits | |
2559 | foo: data8 25 | |
2560 | .text | |
2561 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2562 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
2563 | addl r18 = @ltoff(@tprel(foo#)), gp | |
2564 | addl r19 = @dtprel(foo#), gp | |
2565 | adds r21 = @dtprel(foo#), r13 | |
2566 | movl r23 = @dtprel(foo#) | |
2567 | addl r20 = @tprel(foo#), gp | |
2568 | adds r22 = @tprel(foo#), r13 | |
2569 | movl r24 = @tprel(foo#)' | |
2570 | tls_first_major=2 | |
2571 | tls_first_minor=13 | |
2f3321ca | 2572 | tls_as_opt=--fatal-warnings |
7b6e506e | 2573 | ;; |
69229b81 DJ |
2574 | mips*-*-*) |
2575 | conftest_s=' | |
2576 | .section .tdata,"awT",@progbits | |
2577 | x: | |
2578 | .word 2 | |
2579 | .text | |
2580 | addiu $4, $28, %tlsgd(x) | |
2581 | addiu $4, $28, %tlsldm(x) | |
2582 | lui $4, %dtprel_hi(x) | |
2583 | addiu $4, $4, %dtprel_lo(x) | |
2584 | lw $4, %gottprel(x)($28) | |
2585 | lui $4, %tprel_hi(x) | |
2586 | addiu $4, $4, %tprel_lo(x)' | |
2587 | tls_first_major=2 | |
2588 | tls_first_minor=16 | |
2589 | tls_as_opt='-32 --fatal-warnings' | |
2590 | ;; | |
75df395f MK |
2591 | m68k-*-*) |
2592 | conftest_s=' | |
2593 | .section .tdata,"awT",@progbits | |
2594 | x: | |
2595 | .word 2 | |
2596 | .text | |
2597 | foo: | |
2598 | move.l x@TLSGD(%a5),%a0 | |
2599 | move.l x@TLSLDM(%a5),%a0 | |
2600 | move.l x@TLSLDO(%a5),%a0 | |
2601 | move.l x@TLSIE(%a5),%a0 | |
2602 | move.l x@TLSLE(%a5),%a0' | |
2603 | tls_first_major=2 | |
2604 | tls_first_minor=19 | |
2605 | tls_as_opt='--fatal-warnings' | |
2606 | ;; | |
c4501e62 JJ |
2607 | powerpc-*-*) |
2608 | conftest_s=' | |
2609 | .section ".tdata","awT",@progbits | |
2610 | .align 2 | |
2611 | ld0: .space 4 | |
2612 | ld1: .space 4 | |
2613 | x1: .space 4 | |
2614 | x2: .space 4 | |
2615 | x3: .space 4 | |
2616 | .text | |
2617 | addi 3,31,ld0@got@tlsgd | |
2618 | bl __tls_get_addr | |
2619 | addi 3,31,x1@got@tlsld | |
2620 | bl __tls_get_addr | |
2621 | addi 9,3,x1@dtprel | |
2622 | addis 9,3,x2@dtprel@ha | |
2623 | addi 9,9,x2@dtprel@l | |
2624 | lwz 9,x3@got@tprel(31) | |
2625 | add 9,9,x@tls | |
2626 | addi 9,2,x1@tprel | |
2627 | addis 9,2,x2@tprel@ha | |
2628 | addi 9,9,x2@tprel@l' | |
2629 | tls_first_major=2 | |
2630 | tls_first_minor=14 | |
2f3321ca | 2631 | tls_as_opt="-a32 --fatal-warnings" |
c4501e62 JJ |
2632 | ;; |
2633 | powerpc64-*-*) | |
2634 | conftest_s=' | |
2635 | .section ".tdata","awT",@progbits | |
2636 | .align 3 | |
2637 | ld0: .space 8 | |
2638 | ld1: .space 8 | |
2639 | x1: .space 8 | |
2640 | x2: .space 8 | |
2641 | x3: .space 8 | |
2642 | .text | |
2643 | addi 3,2,ld0@got@tlsgd | |
2644 | bl .__tls_get_addr | |
2645 | nop | |
2646 | addi 3,2,ld1@toc | |
2647 | bl .__tls_get_addr | |
2648 | nop | |
2649 | addi 3,2,x1@got@tlsld | |
2650 | bl .__tls_get_addr | |
2651 | nop | |
2652 | addi 9,3,x1@dtprel | |
2653 | bl .__tls_get_addr | |
2654 | nop | |
2655 | addis 9,3,x2@dtprel@ha | |
2656 | addi 9,9,x2@dtprel@l | |
2657 | bl .__tls_get_addr | |
2658 | nop | |
2659 | ld 9,x3@got@dtprel(2) | |
2660 | add 9,9,3 | |
2661 | bl .__tls_get_addr | |
2662 | nop' | |
2663 | tls_first_major=2 | |
2664 | tls_first_minor=14 | |
2f3321ca | 2665 | tls_as_opt="-a64 --fatal-warnings" |
c4501e62 | 2666 | ;; |
fd3cd001 UW |
2667 | s390-*-*) |
2668 | conftest_s=' | |
2669 | .section ".tdata","awT",@progbits | |
2670 | foo: .long 25 | |
2671 | .text | |
2672 | .long foo@TLSGD | |
2673 | .long foo@TLSLDM | |
2674 | .long foo@DTPOFF | |
2675 | .long foo@NTPOFF | |
2676 | .long foo@GOTNTPOFF | |
2677 | .long foo@INDNTPOFF | |
2678 | l %r1,foo@GOTNTPOFF(%r12) | |
2679 | l %r1,0(%r1):tls_load:foo | |
2680 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2681 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2682 | tls_first_major=2 | |
2683 | tls_first_minor=14 | |
2f3321ca | 2684 | tls_as_opt="-m31 --fatal-warnings" |
fd3cd001 UW |
2685 | ;; |
2686 | s390x-*-*) | |
2687 | conftest_s=' | |
2688 | .section ".tdata","awT",@progbits | |
2689 | foo: .long 25 | |
2690 | .text | |
2691 | .quad foo@TLSGD | |
2692 | .quad foo@TLSLDM | |
2693 | .quad foo@DTPOFF | |
2694 | .quad foo@NTPOFF | |
2695 | .quad foo@GOTNTPOFF | |
2696 | lg %r1,foo@GOTNTPOFF(%r12) | |
2697 | larl %r1,foo@INDNTPOFF | |
2698 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2699 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2700 | tls_first_major=2 | |
2701 | tls_first_minor=14 | |
2f3321ca | 2702 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
fd3cd001 | 2703 | ;; |
9ff13962 KK |
2704 | sh-*-* | sh[34]-*-*) |
2705 | conftest_s=' | |
2706 | .section ".tdata","awT",@progbits | |
2707 | foo: .long 25 | |
2708 | .text | |
2709 | .long foo@TLSGD | |
2710 | .long foo@TLSLDM | |
2711 | .long foo@DTPOFF | |
2712 | .long foo@GOTTPOFF | |
2713 | .long foo@TPOFF' | |
2714 | tls_first_major=2 | |
2715 | tls_first_minor=13 | |
2f3321ca | 2716 | tls_as_opt=--fatal-warnings |
9ff13962 | 2717 | ;; |
5751a10b | 2718 | sparc*-*-*) |
2f3321ca | 2719 | case "$target" in |
7935dc1b EB |
2720 | sparc*-sun-solaris2.[56789]*) |
2721 | # TLS was introduced in the Solaris 9 4/04 release but | |
2722 | # we do not enable it by default on Solaris 9 either. | |
2723 | if test "x$enable_tls" = xyes ; then | |
2724 | on_solaris=yes | |
2725 | else | |
2726 | enable_tls=no; | |
2727 | fi | |
2728 | ;; | |
2f3321ca EB |
2729 | sparc*-sun-solaris2.*) |
2730 | on_solaris=yes | |
2731 | ;; | |
2732 | *) | |
2733 | on_solaris=no | |
2734 | ;; | |
2735 | esac | |
2736 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2737 | conftest_s=' | |
2738 | .section ".tdata",#alloc,#write,#tls | |
2739 | foo: .long 25 | |
2740 | .text | |
2741 | sethi %tgd_hi22(foo), %o0 | |
2742 | add %o0, %tgd_lo10(foo), %o1 | |
2743 | add %l7, %o1, %o0, %tgd_add(foo) | |
2744 | call __tls_get_addr, %tgd_call(foo) | |
2745 | sethi %tldm_hi22(foo), %l1 | |
2746 | add %l1, %tldm_lo10(foo), %l2 | |
2747 | add %l7, %l2, %o0, %tldm_add(foo) | |
2748 | call __tls_get_addr, %tldm_call(foo) | |
2749 | sethi %tldo_hix22(foo), %l3 | |
2750 | xor %l3, %tldo_lox10(foo), %l4 | |
2751 | add %o0, %l4, %l5, %tldo_add(foo) | |
2752 | sethi %tie_hi22(foo), %o3 | |
2753 | add %o3, %tie_lo10(foo), %o3 | |
2754 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2755 | add %g7, %o2, %o4, %tie_add(foo) | |
2756 | sethi %tle_hix22(foo), %l1 | |
2757 | xor %l1, %tle_lox10(foo), %o5 | |
2758 | ld [%g7 + %o5], %o1' | |
2759 | tls_first_major=0 | |
2760 | tls_first_minor=0 | |
2761 | else | |
2762 | conftest_s=' | |
5751a10b JJ |
2763 | .section ".tdata","awT",@progbits |
2764 | foo: .long 25 | |
2765 | .text | |
2766 | sethi %tgd_hi22(foo), %o0 | |
2767 | add %o0, %tgd_lo10(foo), %o1 | |
2768 | add %l7, %o1, %o0, %tgd_add(foo) | |
2769 | call __tls_get_addr, %tgd_call(foo) | |
2770 | sethi %tldm_hi22(foo), %l1 | |
2771 | add %l1, %tldm_lo10(foo), %l2 | |
2772 | add %l7, %l2, %o0, %tldm_add(foo) | |
2773 | call __tls_get_addr, %tldm_call(foo) | |
2774 | sethi %tldo_hix22(foo), %l3 | |
2775 | xor %l3, %tldo_lox10(foo), %l4 | |
2776 | add %o0, %l4, %l5, %tldo_add(foo) | |
2777 | sethi %tie_hi22(foo), %o3 | |
2778 | add %o3, %tie_lo10(foo), %o3 | |
2779 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2780 | add %g7, %o2, %o4, %tie_add(foo) | |
2781 | sethi %tle_hix22(foo), %l1 | |
2782 | xor %l1, %tle_lox10(foo), %o5 | |
2783 | ld [%g7 + %o5], %o1' | |
2784 | tls_first_major=2 | |
2785 | tls_first_minor=14 | |
2f3321ca EB |
2786 | tls_as_opt="-32 --fatal-warnings" |
2787 | fi | |
5751a10b | 2788 | ;; |
6a7a462c BW |
2789 | xtensa*-*-*) |
2790 | conftest_s=' | |
2791 | .section ".tdata","awT",@progbits | |
2792 | foo: .long 25 | |
2793 | .text | |
2794 | movi a8, foo@TLSFUNC | |
2795 | movi a10, foo@TLSARG | |
2796 | callx8.tls a8, foo@TLSCALL' | |
2797 | tls_first_major=2 | |
2798 | tls_first_minor=19 | |
2799 | ;; | |
5751a10b | 2800 | changequote([,])dnl |
f996902d | 2801 | esac |
8dea1cca DD |
2802 | set_have_as_tls=no |
2803 | if test "x$enable_tls" = xno ; then | |
2804 | : # TLS explicitly disabled. | |
2805 | elif test "x$enable_tls" = xyes ; then | |
2806 | set_have_as_tls=yes # TLS explicitly enabled. | |
2807 | elif test -z "$tls_first_major"; then | |
8ada417f ZW |
2808 | : # If we don't have a check, assume no support. |
2809 | else | |
2810 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2f3321ca | 2811 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
8dea1cca DD |
2812 | [set_have_as_tls=yes]) |
2813 | fi | |
2814 | if test $set_have_as_tls = yes ; then | |
2815 | AC_DEFINE(HAVE_AS_TLS, 1, | |
2816 | [Define if your assembler supports thread-local storage.]) | |
f996902d | 2817 | fi |
8ada417f ZW |
2818 | |
2819 | # Target-specific assembler checks. | |
f996902d | 2820 | |
7e9d8517 L |
2821 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
2822 | gcc_cv_ld_static_dynamic=no | |
2823 | if test $in_tree_ld = yes ; then | |
83f0ccb8 | 2824 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then |
7e9d8517 L |
2825 | gcc_cv_ld_static_dynamic=yes |
2826 | fi | |
2827 | elif test x$gcc_cv_ld != x; then | |
2828 | # Check if linker supports -Bstatic/-Bdynamic option | |
2829 | if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2830 | && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2831 | gcc_cv_ld_static_dynamic=yes | |
2832 | fi | |
2833 | fi | |
2834 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2835 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2836 | [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2837 | fi | |
2838 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2839 | ||
d594623a L |
2840 | if test x"$demangler_in_ld" = xyes; then |
2841 | AC_MSG_CHECKING(linker --demangle support) | |
2842 | gcc_cv_ld_demangle=no | |
2843 | if test $in_tree_ld = yes; then | |
2844 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2845 | gcc_cv_ld_demangle=yes | |
2846 | fi | |
2847 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2848 | # Check if the GNU linker supports --demangle option | |
2849 | if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2850 | gcc_cv_ld_demangle=yes | |
2851 | fi | |
2852 | fi | |
2853 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
2854 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2855 | [Define if your linker supports --demangle option.]) | |
2856 | fi | |
2857 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2858 | fi | |
2859 | ||
275b60d6 | 2860 | case "$target" in |
3a37b08e RH |
2861 | # All TARGET_ABI_OSF targets. |
2862 | alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
8ada417f ZW |
2863 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
2864 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2865 | [ .set nomacro | |
3a37b08e RH |
2866 | .text |
2867 | extbl $3, $2, $3 !lituse_bytoff!1 | |
2868 | ldq $2, a($29) !literal!1 | |
2869 | ldq $4, b($29) !literal!2 | |
2870 | ldq_u $3, 0($2) !lituse_base!1 | |
2871 | ldq $27, f($29) !literal!5 | |
2872 | jsr $26, ($27), f !lituse_jsr!5 | |
2873 | ldah $29, 0($26) !gpdisp!3 | |
2874 | lda $0, c($29) !gprel | |
2875 | ldah $1, d($29) !gprelhigh | |
2876 | lda $1, d($1) !gprellow | |
8ada417f ZW |
2877 | lda $29, 0($29) !gpdisp!3],, |
2878 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2879 | [Define if your assembler supports explicit relocations.])]) | |
d006f5eb RH |
2880 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
2881 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
2882 | [ .set nomacro | |
2883 | .text | |
2884 | ldq $27, a($29) !literal!1 | |
2885 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
2886 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
2887 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
3a37b08e | 2888 | ;; |
e95b1e6a | 2889 | |
682a45fc HPN |
2890 | cris-*-*) |
2891 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2892 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2893 | [-no-mul-bug-abort], [.text],, | |
2894 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2895 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2896 | ;; | |
2897 | ||
8ada417f ZW |
2898 | sparc*-*-*) |
2899 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2900 | [.register %g2, #scratch],, | |
2901 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2902 | [Define if your assembler supports .register.])]) | |
2903 | ||
2904 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2905 | [-relax], [.text],, | |
2906 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2907 | [Define if your assembler supports -relax option.])]) | |
2908 | ||
2909 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2910 | gcc_cv_as_sparc_ua_pcrel,, | |
2911 | [-K PIC], | |
2912 | [.text | |
2913 | foo: | |
2914 | nop | |
2915 | .data | |
2916 | .align 4 | |
2917 | .byte 0 | |
2918 | .uaword %r_disp32(foo)], | |
2919 | [if test x$gcc_cv_ld != x \ | |
2920 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2921 | gcc_cv_as_sparc_ua_pcrel=yes | |
2922 | fi | |
2923 | rm -f conftest], | |
2924 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
17e9e88c | 2925 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
cf7b8b0d | 2926 | |
8ada417f ZW |
2927 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
2928 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2929 | [-K PIC], | |
2930 | [.data | |
2931 | .align 4 | |
2932 | .byte 0x31 | |
2933 | .uaword %r_disp32(foo) | |
2934 | .byte 0x32, 0x33, 0x34 | |
2935 | .global foo | |
2936 | .hidden foo | |
2937 | foo: | |
2938 | .skip 4], | |
2939 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2940 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2941 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2942 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2943 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2944 | | grep 'DISP32' > /dev/null 2>&1; then | |
2945 | : | |
22252625 | 2946 | else |
8ada417f | 2947 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
5b68c389 | 2948 | fi |
8ada417f ZW |
2949 | fi |
2950 | rm -f conftest], | |
2951 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2952 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2953 | ]) # unaligned pcrel relocs | |
2954 | ||
2955 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2956 | gcc_cv_as_sparc_offsetable_lo10,, | |
2957 | [-xarch=v9], | |
2958 | [.text | |
2959 | or %g1, %lo(ab) + 12, %g1 | |
2960 | or %g1, %lo(ab + 12), %g1], | |
2961 | [if test x$gcc_cv_objdump != x \ | |
ecb0ccbc | 2962 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
8ada417f | 2963 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
1b5c0152 | 2964 | gcc_cv_as_sparc_offsetable_lo10=yes |
8ada417f ZW |
2965 | fi], |
2966 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2967 | [Define if your assembler supports offsetable %lo().])]) | |
1cb36a98 RH |
2968 | ;; |
2969 | ||
2970 | changequote(,)dnl | |
c307e6dd | 2971 | i[34567]86-*-* | x86_64-*-*) |
1cb36a98 | 2972 | changequote([,])dnl |
d38bc601 BF |
2973 | case $target_os in |
2974 | cygwin* | pe | mingw32*) | |
233215fe DK |
2975 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
2976 | # definition is used unconditionally to initialise the default state of | |
2977 | # the target option variable that governs usage of the feature. | |
2978 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
2979 | [2,19,52],,[.comm foo,1,32]) | |
2980 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
2981 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
2982 | [Define if your assembler supports specifying the alignment | |
2983 | of objects allocated using the GAS .comm command.]) | |
d38bc601 BF |
2984 | # Used for DWARF 2 in PE |
2985 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
2986 | gcc_cv_as_ix86_pe_secrel32, | |
2987 | [2,15,91],, | |
2988 | [.text | |
2989 | foo: nop | |
2990 | .data | |
2991 | .secrel32 foo], | |
2992 | [if test x$gcc_cv_ld != x \ | |
2993 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
2994 | gcc_cv_as_ix86_pe_secrel32=yes | |
2995 | fi | |
2996 | rm -f conftest], | |
2997 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
2998 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
2999 | ;; | |
3000 | esac | |
3001 | ||
8ada417f | 3002 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
a3a5e3d1 UB |
3003 | gcc_cv_as_ix86_filds,,, |
3004 | [filds mem; fists mem],, | |
3005 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, | |
3006 | [Define if your assembler uses filds and fists mnemonics.])]) | |
3007 | ||
3008 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
3009 | gcc_cv_as_ix86_fildq,,, | |
3010 | [fildq mem; fistpq mem],, | |
3011 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, | |
3012 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
8ada417f | 3013 | |
f6f5dff2 RO |
3014 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
3015 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
3016 | [cmovl.l %edx, %eax],, | |
3017 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
3018 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
3019 | ||
b6c03bcd RS |
3020 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
3021 | gcc_cv_as_ix86_ffreep,,, | |
3022 | [ffreep %st(1)],, | |
3023 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
3024 | [Define if your assembler supports the ffreep mnemonic.])]) | |
3025 | ||
38ca3765 UB |
3026 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
3027 | gcc_cv_as_ix86_sahf,,, | |
3028 | [sahf],, | |
3029 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, | |
3030 | [Define if your assembler supports the sahf mnemonic.])]) | |
3031 | ||
68b92f78 RS |
3032 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
3033 | gcc_cv_as_ix86_diff_sect_delta,,, | |
3034 | [.section .rodata | |
3035 | .L1: | |
3036 | .long .L2-.L1 | |
3037 | .long .L3-.L1 | |
3038 | .text | |
3039 | .L3: nop | |
3040 | .L2: nop],, | |
3041 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
3042 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
3043 | ||
6f3ca281 ZW |
3044 | # This one is used unconditionally by i386.[ch]; it is to be defined |
3045 | # to 1 if the feature is present, 0 otherwise. | |
8ada417f ZW |
3046 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], |
3047 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
3048 | [ .text | |
f88c65f7 RH |
3049 | .L0: |
3050 | nop | |
3051 | .data | |
6f3ca281 ZW |
3052 | .long .L0@GOTOFF]) |
3053 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
3054 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
3055 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
1cb36a98 | 3056 | ;; |
ef1ecf87 RH |
3057 | |
3058 | ia64*-*-*) | |
8ada417f ZW |
3059 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
3060 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
cfa9ee99 | 3061 | [ .text |
ef1ecf87 RH |
3062 | addl r15 = @ltoffx(x#), gp |
3063 | ;; | |
cfa9ee99 | 3064 | ld8.mov r16 = [[r15]], x#],, |
8ada417f ZW |
3065 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
3066 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
3067 | ||
ef1ecf87 | 3068 | ;; |
8ada417f | 3069 | |
2c4a9cff | 3070 | powerpc*-*-*) |
8ada417f | 3071 | case $target in |
432218ba DE |
3072 | *-*-aix*) conftest_s=' .machine "pwr5" |
3073 | .csect .text[[PR]] | |
6b37db3c | 3074 | mfcr 3,128';; |
8af4d362 PB |
3075 | *-*-darwin*) |
3076 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
3077 | gcc_cv_as_machine_directive,,, | |
3078 | [ .machine ppc7400]) | |
3079 | if test x$gcc_cv_as_machine_directive != xyes; then | |
3080 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
3081 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
3082 | test x$build = x$target && exit 1 | |
3083 | fi | |
3084 | conftest_s=' .text | |
6b37db3c | 3085 | mfcr r3,128';; |
4c67db14 | 3086 | *) conftest_s=' .machine power4 |
d2ab3e37 | 3087 | .text |
6b37db3c | 3088 | mfcr 3,128';; |
8ada417f | 3089 | esac |
8ada417f ZW |
3090 | |
3091 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
3092 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
3093 | [$conftest_s],, | |
3094 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
3095 | [Define if your assembler supports mfcr field.])]) | |
432218ba DE |
3096 | |
3097 | case $target in | |
3098 | *-*-aix*) conftest_s=' .machine "pwr5" | |
3099 | .csect .text[[PR]] | |
3100 | popcntb 3,3';; | |
3101 | *) conftest_s=' .machine power5 | |
3102 | .text | |
3103 | popcntb 3,3';; | |
3104 | esac | |
3105 | ||
3106 | gcc_GAS_CHECK_FEATURE([popcntb support], | |
3107 | gcc_cv_as_powerpc_popcntb, [2,17,0],, | |
3108 | [$conftest_s],, | |
3109 | [AC_DEFINE(HAVE_AS_POPCNTB, 1, | |
3110 | [Define if your assembler supports popcntb field.])]) | |
3111 | ||
9719f3b7 DE |
3112 | case $target in |
3113 | *-*-aix*) conftest_s=' .machine "pwr5x" | |
3114 | .csect .text[[PR]] | |
3115 | frin 1,1';; | |
1e04bfdc | 3116 | *) conftest_s=' .machine power5 |
9719f3b7 DE |
3117 | .text |
3118 | frin 1,1';; | |
3119 | esac | |
3120 | ||
3121 | gcc_GAS_CHECK_FEATURE([fp round support], | |
3122 | gcc_cv_as_powerpc_fprnd, [2,17,0],, | |
3123 | [$conftest_s],, | |
3124 | [AC_DEFINE(HAVE_AS_FPRND, 1, | |
3125 | [Define if your assembler supports fprnd.])]) | |
3126 | ||
44cd321e PS |
3127 | case $target in |
3128 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3129 | .csect .text[[PR]] | |
3130 | mffgpr 1,3';; | |
3131 | *) conftest_s=' .machine power6 | |
3132 | .text | |
3133 | mffgpr 1,3';; | |
3134 | esac | |
3135 | ||
3136 | gcc_GAS_CHECK_FEATURE([move fp gpr support], | |
cacf1ca8 | 3137 | gcc_cv_as_powerpc_mfpgpr, [2,19,2],, |
44cd321e PS |
3138 | [$conftest_s],, |
3139 | [AC_DEFINE(HAVE_AS_MFPGPR, 1, | |
3140 | [Define if your assembler supports mffgpr and mftgpr.])]) | |
3141 | ||
7f970b70 AM |
3142 | case $target in |
3143 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
3144 | LCF..0: | |
3145 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
3146 | *-*-darwin*) | |
3147 | conftest_s=' .text | |
3148 | LCF0: | |
3149 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
3150 | *) conftest_s=' .text | |
3151 | .LCF0: | |
3152 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
3153 | esac | |
3154 | ||
695d8830 AS |
3155 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
3156 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
3157 | [$conftest_s],, | |
3158 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
3159 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
3160 | ||
b639c3c2 JJ |
3161 | case $target in |
3162 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3163 | .csect .text[[PR]] | |
3164 | cmpb 3,4,5';; | |
3165 | *) conftest_s=' .machine power6 | |
3166 | .text | |
3167 | cmpb 3,4,5';; | |
3168 | esac | |
3169 | ||
3170 | gcc_GAS_CHECK_FEATURE([compare bytes support], | |
cacf1ca8 | 3171 | gcc_cv_as_powerpc_cmpb, [2,19,2], -a32, |
b639c3c2 JJ |
3172 | [$conftest_s],, |
3173 | [AC_DEFINE(HAVE_AS_CMPB, 1, | |
3174 | [Define if your assembler supports cmpb.])]) | |
3175 | ||
3176 | case $target in | |
3177 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3178 | .csect .text[[PR]] | |
0d74c0ee | 3179 | dadd 1,2,3';; |
b639c3c2 JJ |
3180 | *) conftest_s=' .machine power6 |
3181 | .text | |
0d74c0ee | 3182 | dadd 1,2,3';; |
b639c3c2 JJ |
3183 | esac |
3184 | ||
3185 | gcc_GAS_CHECK_FEATURE([decimal float support], | |
cacf1ca8 | 3186 | gcc_cv_as_powerpc_dfp, [2,19,2], -a32, |
b639c3c2 JJ |
3187 | [$conftest_s],, |
3188 | [AC_DEFINE(HAVE_AS_DFP, 1, | |
3189 | [Define if your assembler supports DFP instructions.])]) | |
e51917ae | 3190 | |
d40c9e33 PB |
3191 | case $target in |
3192 | *-*-aix*) conftest_s=' .machine "pwr7" | |
3193 | .csect .text[[PR]] | |
3194 | lxvd2x 1,2,3';; | |
3195 | *) conftest_s=' .machine power7 | |
3196 | .text | |
3197 | lxvd2x 1,2,3';; | |
3198 | esac | |
3199 | ||
3200 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
cacf1ca8 | 3201 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
d40c9e33 PB |
3202 | [$conftest_s],, |
3203 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
3204 | [Define if your assembler supports VSX instructions.])]) | |
3205 | ||
cacf1ca8 MM |
3206 | case $target in |
3207 | *-*-aix*) conftest_s=' .machine "pwr7" | |
3208 | .csect .text[[PR]] | |
3209 | popcntd 3,3';; | |
3210 | *) conftest_s=' .machine power7 | |
3211 | .text | |
3212 | popcntd 3,3';; | |
3213 | esac | |
3214 | ||
3215 | gcc_GAS_CHECK_FEATURE([popcntd support], | |
3216 | gcc_cv_as_powerpc_popcntd, [2,19,2], -a32, | |
3217 | [$conftest_s],, | |
3218 | [AC_DEFINE(HAVE_AS_POPCNTD, 1, | |
3219 | [Define if your assembler supports POPCNTD instructions.])]) | |
3220 | ||
3221 | case $target in | |
3222 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
3223 | lwsync';; | |
3224 | *) conftest_s=' .text | |
3225 | lwsync';; | |
3226 | esac | |
3227 | ||
3228 | gcc_GAS_CHECK_FEATURE([lwsync support], | |
3229 | gcc_cv_as_powerpc_lwsync, [2,19,2], -a32, | |
3230 | [$conftest_s],, | |
3231 | [AC_DEFINE(HAVE_AS_LWSYNC, 1, | |
3232 | [Define if your assembler supports LWSYNC instructions.])]) | |
3233 | ||
e51917ae JM |
3234 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
3235 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
3236 | [.gnu_attribute 4,1],, | |
3237 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3238 | [Define if your assembler supports .gnu_attribute.])]) | |
9752c4ad AM |
3239 | |
3240 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
3241 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
3242 | [ bl __tls_get_addr(x@tlsgd)],, | |
3243 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
3244 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
2c4a9cff | 3245 | ;; |
53b5ce19 | 3246 | |
8ada417f ZW |
3247 | mips*-*-*) |
3248 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
3249 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
3250 | [ lw $4,%gp_rel(foo)($4)],, | |
3251 | [if test x$target_cpu_default = x | |
3252 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
3253 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
3254 | fi]) | |
4551169f RS |
3255 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
3256 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
3257 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
3258 | [Define if the assembler understands -mno-shared.])]) | |
dcb957d9 JM |
3259 | |
3260 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
3261 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
3262 | [.gnu_attribute 4,1],, | |
3263 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3264 | [Define if your assembler supports .gnu_attribute.])]) | |
a44380d2 JM |
3265 | |
3266 | gcc_GAS_CHECK_FEATURE([.dtprelword support], | |
3267 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
3268 | [.section .tdata,"awT",@progbits | |
3269 | x: | |
3270 | .word 2 | |
3271 | .text | |
3272 | .dtprelword x+0x8000],, | |
3273 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
3274 | [Define if your assembler supports .dtprelword.])]) | |
dbad5e72 SE |
3275 | ;; |
3276 | esac | |
3277 | ||
3278 | # Mips and HP-UX need the GNU assembler. | |
3279 | # Linux on IA64 might be able to use the Intel assembler. | |
8ada417f | 3280 | |
dbad5e72 SE |
3281 | case "$target" in |
3282 | mips*-*-* | *-*-hpux* ) | |
82563d35 RS |
3283 | if test x$gas_flag = xyes \ |
3284 | || test x"$host" != x"$build" \ | |
3285 | || test ! -x "$gcc_cv_as" \ | |
3286 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
3287 | : | |
3288 | else | |
3289 | echo "*** This configuration requires the GNU assembler" >&2 | |
3290 | exit 1 | |
3291 | fi | |
8ada417f ZW |
3292 | ;; |
3293 | esac | |
dbad5e72 | 3294 | |
9d147085 RH |
3295 | # ??? Not all targets support dwarf2 debug_line, even within a version |
3296 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
3297 | # info to the output file. So, as supported targets are added to gas 2.11, | |
3298 | # add some instruction here to (also) show we expect this might work. | |
3299 | # ??? Once 2.11 is released, probably need to add first known working | |
3300 | # version to the per-target configury. | |
3301 | case "$target" in | |
80486e06 | 3302 | i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ |
cd985f66 | 3303 | | x86_64*-*-* | hppa*-*-* | arm*-*-* \ |
ad9646c7 | 3304 | | xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \ |
15a43677 | 3305 | | spu-*-* | fido*-*-* | m32c-*-*) |
9d147085 RH |
3306 | insn="nop" |
3307 | ;; | |
57116d8d | 3308 | ia64*-*-* | s390*-*-*) |
9d147085 RH |
3309 | insn="nop 0" |
3310 | ;; | |
2853bc5a HPN |
3311 | mmix-*-*) |
3312 | insn="swym 0" | |
3313 | ;; | |
8ada417f ZW |
3314 | esac |
3315 | if test x"$insn" != x; then | |
3316 | conftest_s="\ | |
3317 | .file 1 \"conftest.s\" | |
3318 | .loc 1 3 0 | |
3319 | $insn" | |
3320 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
3321 | gcc_cv_as_dwarf2_debug_line, | |
3322 | [elf,2,11,0],, [$conftest_s], | |
080a5bb0 EB |
3323 | [if test x$gcc_cv_objdump != x \ |
3324 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
3325 | | grep debug_line > /dev/null 2>&1; then | |
8ada417f ZW |
3326 | gcc_cv_as_dwarf2_debug_line=yes |
3327 | fi]) | |
3328 | ||
3329 | # The .debug_line file table must be in the exact order that | |
3330 | # we specified the files, since these indices are also used | |
3331 | # by DW_AT_decl_file. Approximate this test by testing if | |
3332 | # the assembler bitches if the same index is assigned twice. | |
3333 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
3334 | gcc_cv_as_dwarf2_file_buggy,,, | |
3335 | [ .file 1 "foo.s" | |
3336 | .file 1 "bar.s"]) | |
3337 | ||
3338 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
3339 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
9d147085 | 3340 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
8ada417f | 3341 | [Define if your assembler supports dwarf2 .file/.loc directives, |
eaec9b3d | 3342 | and preserves file table indices exactly as given.]) |
8ada417f ZW |
3343 | fi |
3344 | ||
3345 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
3346 | gcc_cv_as_gdwarf2_flag, | |
3347 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
3348 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
3349 | [Define if your assembler supports the --gdwarf2 option.])]) | |
3350 | ||
3351 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
3352 | gcc_cv_as_gstabs_flag, | |
3353 | [elf,2,11,0], [--gstabs], [$insn], | |
3354 | [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
3355 | # and warns about it, but still exits successfully. So check for | |
3356 | # this. | |
3357 | if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
3358 | then : | |
3359 | else gcc_cv_as_gstabs_flag=yes | |
3360 | fi], | |
3361 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
3362 | [Define if your assembler supports the --gstabs option.])]) | |
c8aea42c PB |
3363 | |
3364 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
3365 | gcc_cv_as_debug_prefix_map_flag, | |
303a4698 | 3366 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
c8aea42c PB |
3367 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
3368 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
9d147085 | 3369 | fi |
5f0e9ea2 | 3370 | |
28e6bb13 NC |
3371 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
3372 | ,, | |
3373 | [.lcomm bar,4,16],, | |
3374 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
3375 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
3376 | ||
e31bcd1b JM |
3377 | AC_ARG_ENABLE(gnu-unique-object, |
3378 | [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on | |
3379 | glibc systems], | |
3380 | [case $enable_gnu_unique_object in | |
3381 | yes | no) ;; | |
3382 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
3383 | Valid choices are 'yes' and 'no'.]) ;; | |
3384 | esac], | |
3385 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
3386 | [elf,2,19,52],, | |
3387 | [.type foo, @gnu_unique_object], | |
3388 | # Also check for ld.so support, i.e. glibc 2.11 or higher. | |
3389 | [if test x$host = x$build -a x$host = x$target && | |
3390 | glibcver=`ldd --version 2>/dev/null`; then | |
3391 | glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"` | |
3392 | glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"` | |
3393 | glibcnum=`expr $glibcmajor \* 1000 + $glibcminor` | |
3394 | if test "$glibcnum" -ge 2011 ; then | |
3395 | gcc_cv_as_gnu_unique_object=yes | |
3396 | fi | |
3397 | fi], | |
3398 | [enable_gnu_unique_object=yes])]) | |
3399 | if test x$enable_gnu_unique_object = xyes; then | |
3400 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
3401 | [Define if your assembler supports @gnu_unique_object.]) | |
3402 | fi | |
3403 | ||
03943c05 AO |
3404 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
3405 | [gcc_cv_as_line_zero], | |
3406 | [gcc_cv_as_line_zero=no | |
3407 | if test $in_tree_gas = yes; then | |
cf0eb7a1 | 3408 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
03943c05 AO |
3409 | elif test "x$gcc_cv_as" != x; then |
3410 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
3411 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
3412 | test "x`cat conftest.out`" = x | |
3413 | then | |
3414 | gcc_cv_as_line_zero=yes | |
3415 | else | |
3416 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
3417 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
3418 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
3419 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
3420 | fi | |
3421 | rm -f conftest.o conftest.s conftest.out | |
3422 | fi]) | |
3423 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
3424 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
3425 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
3426 | fi | |
3427 | ||
275b60d6 JJ |
3428 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
3429 | gcc_cv_ld_eh_frame_hdr=no | |
34a86c2b | 3430 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
3431 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3432 | && test $in_tree_ld_is_elf = yes; then | |
275b60d6 JJ |
3433 | gcc_cv_ld_eh_frame_hdr=yes |
3434 | fi | |
3435 | elif test x$gcc_cv_ld != x; then | |
3436 | # Check if linker supports --eh-frame-hdr option | |
3437 | if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
3438 | gcc_cv_ld_eh_frame_hdr=yes | |
3439 | fi | |
3440 | fi | |
232b67d9 | 3441 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
275b60d6 JJ |
3442 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
3443 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
3444 | [Define if your linker supports --eh-frame-hdr option.]) | |
3445 | fi | |
3446 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
3447 | ||
24a4dd31 JJ |
3448 | AC_MSG_CHECKING(linker position independent executable support) |
3449 | gcc_cv_ld_pie=no | |
3450 | if test $in_tree_ld = yes ; then | |
5408ac6c HPN |
3451 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3452 | && test $in_tree_ld_is_elf = yes; then | |
24a4dd31 JJ |
3453 | gcc_cv_ld_pie=yes |
3454 | fi | |
3455 | elif test x$gcc_cv_ld != x; then | |
3456 | # Check if linker supports -pie option | |
3457 | if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
3458 | gcc_cv_ld_pie=yes | |
3459 | fi | |
3460 | fi | |
3461 | if test x"$gcc_cv_ld_pie" = xyes; then | |
3462 | AC_DEFINE(HAVE_LD_PIE, 1, | |
3463 | [Define if your linker supports -pie option.]) | |
3464 | fi | |
3465 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
3466 | ||
22ba88ef EB |
3467 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
3468 | gcc_cv_ld_eh_gc_sections=no | |
3469 | if test $in_tree_ld = yes ; then | |
3470 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3471 | && test $in_tree_ld_is_elf = yes; then | |
3472 | gcc_cv_ld_eh_gc_sections=yes | |
3473 | fi | |
3474 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3475 | cat > conftest.s <<EOF | |
3476 | .section .text | |
3477 | .globl _start | |
3478 | .type _start, @function | |
3479 | _start: | |
3480 | .long foo | |
3481 | .size _start, .-_start | |
3482 | .section .text.foo,"ax",@progbits | |
3483 | .type foo, @function | |
3484 | foo: | |
3485 | .long 0 | |
3486 | .size foo, .-foo | |
3487 | .section .gcc_except_table.foo,"a",@progbits | |
3488 | .L0: | |
3489 | .long 0 | |
3490 | .section .eh_frame,"a",@progbits | |
3491 | .long .L0 | |
3492 | EOF | |
3493 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3494 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3495 | | grep "gc-sections option ignored" > /dev/null; then | |
3496 | gcc_cv_ld_eh_gc_sections=no | |
3497 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3498 | gcc_cv_ld_eh_gc_sections=yes | |
e9d207d9 EB |
3499 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
3500 | if test x$gcc_cv_as_comdat_group != xyes; then | |
3501 | gcc_cv_ld_eh_gc_sections=no | |
3502 | cat > conftest.s <<EOF | |
3503 | .section .text | |
3504 | .globl _start | |
3505 | .type _start, @function | |
3506 | _start: | |
3507 | .long foo | |
3508 | .size _start, .-_start | |
3509 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
3510 | .type foo, @function | |
3511 | foo: | |
3512 | .long 0 | |
3513 | .size foo, .-foo | |
3514 | .section .gcc_except_table.foo,"a",@progbits | |
3515 | .L0: | |
3516 | .long 0 | |
3517 | .section .eh_frame,"a",@progbits | |
3518 | .long .L0 | |
3519 | EOF | |
3520 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3521 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3522 | | grep "gc-sections option ignored" > /dev/null; then | |
3523 | gcc_cv_ld_eh_gc_sections=no | |
3524 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3525 | gcc_cv_ld_eh_gc_sections=yes | |
3526 | fi | |
3527 | fi | |
3528 | fi | |
22ba88ef EB |
3529 | fi |
3530 | fi | |
3531 | rm -f conftest.s conftest.o conftest | |
3532 | fi | |
e9d207d9 EB |
3533 | case "$target" in |
3534 | hppa*-*-linux*) | |
3535 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
3536 | gcc_cv_ld_eh_gc_sections=no | |
3537 | ;; | |
3538 | esac | |
22ba88ef EB |
3539 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
3540 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
3541 | [Define if your linker supports garbage collection of | |
3542 | sections in presence of EH frames.]) | |
3543 | fi | |
3544 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
3545 | ||
630327c3 NN |
3546 | # -------- |
3547 | # UNSORTED | |
3548 | # -------- | |
3549 | ||
82e923f6 RS |
3550 | AC_CACHE_CHECK(linker --as-needed support, |
3551 | gcc_cv_ld_as_needed, | |
3552 | [gcc_cv_ld_as_needed=no | |
765f1bf9 AM |
3553 | if test $in_tree_ld = yes ; then |
3554 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3555 | && test $in_tree_ld_is_elf = yes; then | |
3556 | gcc_cv_ld_as_needed=yes | |
3557 | fi | |
3558 | elif test x$gcc_cv_ld != x; then | |
3559 | # Check if linker supports --as-needed and --no-as-needed options | |
3560 | if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
3561 | gcc_cv_ld_as_needed=yes | |
3562 | fi | |
3563 | fi | |
82e923f6 | 3564 | ]) |
765f1bf9 AM |
3565 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
3566 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
3567 | [Define if your linker supports --as-needed and --no-as-needed options.]) | |
3568 | fi | |
765f1bf9 | 3569 | |
d82bf747 AM |
3570 | case "$target:$tm_file" in |
3571 | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) | |
85b776df AM |
3572 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
3573 | gcc_cv_ld_no_dot_syms, | |
3574 | [gcc_cv_ld_no_dot_syms=no | |
3575 | if test $in_tree_ld = yes ; then | |
3576 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
3577 | gcc_cv_ld_no_dot_syms=yes | |
3578 | fi | |
3579 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
3580 | cat > conftest1.s <<EOF | |
3581 | .text | |
3582 | bl .foo | |
3583 | EOF | |
3584 | cat > conftest2.s <<EOF | |
3585 | .section ".opd","aw" | |
3586 | .align 3 | |
3587 | .globl foo | |
3588 | .type foo,@function | |
3589 | foo: | |
3590 | .quad .LEfoo,.TOC.@tocbase,0 | |
3591 | .text | |
3592 | .LEfoo: | |
3593 | blr | |
3594 | .size foo,.-.LEfoo | |
3595 | EOF | |
3596 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3597 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3598 | && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3599 | gcc_cv_ld_no_dot_syms=yes | |
3600 | fi | |
3601 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3602 | fi | |
3603 | ]) | |
3604 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3605 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3606 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3607 | fi | |
3608 | ;; | |
3609 | esac | |
3610 | ||
cd533689 PP |
3611 | AC_CACHE_CHECK(linker --build-id support, |
3612 | gcc_cv_ld_buildid, | |
3613 | [gcc_cv_ld_buildid=no | |
3614 | if test $in_tree_ld = yes ; then | |
3615 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
3616 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
3617 | "$gcc_cv_gld_major_version" -gt 2 \ | |
3618 | && test $in_tree_ld_is_elf = yes; then | |
3619 | gcc_cv_ld_buildid=yes | |
3620 | fi | |
3621 | elif test x$gcc_cv_ld != x; then | |
3622 | if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then | |
3623 | gcc_cv_ld_buildid=yes | |
3624 | fi | |
3625 | fi]) | |
3626 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
3627 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
3628 | [Define if your linker supports --build-id.]) | |
3629 | fi | |
3630 | ||
3631 | AC_ARG_ENABLE(linker-build-id, | |
3632 | [ --enable-linker-build-id | |
3633 | compiler will always pass --build-id to linker], | |
3634 | [], | |
3635 | enable_linker_build_id=no) | |
3636 | ||
3637 | if test x"$enable_linker_build_id" = xyes; then | |
3638 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
3639 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
3640 | [Define if gcc should always pass --build-id to linker.]) | |
3641 | else | |
3642 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
3643 | fi | |
3644 | fi | |
3645 | ||
380e5ca4 MM |
3646 | AC_CACHE_CHECK(linker --sysroot support, |
3647 | gcc_cv_ld_sysroot, | |
3648 | [gcc_cv_ld_sysroot=no | |
3649 | if test $in_tree_ld = yes ; then | |
3650 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
7032df40 | 3651 | gcc_cv_ld_sysroot=yes |
380e5ca4 MM |
3652 | fi |
3653 | elif test x$gcc_cv_ld != x; then | |
3654 | if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then | |
3655 | gcc_cv_ld_sysroot=yes | |
3656 | fi | |
3657 | fi]) | |
3658 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
3659 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
3660 | [Define if your linker supports --sysroot.]) | |
3661 | fi | |
3662 | ||
9fb28a67 | 3663 | if test x$with_sysroot = x && test x$host = x$target \ |
c794c06f CD |
3664 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ |
3665 | && test "$prefix" != "NONE"; then | |
8ada417f ZW |
3666 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", |
3667 | [Define to PREFIX/include if cpp should also search that directory.]) | |
793e9558 PB |
3668 | fi |
3669 | ||
77008252 | 3670 | # Test for stack protector support in target C library. |
a6ccdbab | 3671 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
77008252 JJ |
3672 | gcc_cv_libc_provides_ssp, |
3673 | [gcc_cv_libc_provides_ssp=no | |
a6ccdbab | 3674 | case "$target" in |
22f96a0f | 3675 | *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu) |
77008252 JJ |
3676 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then |
3677 | if test "x$with_sysroot" = x; then | |
3678 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
c9ecbf86 JM |
3679 | elif test "x$with_build_sysroot" != "x"; then |
3680 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
77008252 JJ |
3681 | elif test "x$with_sysroot" = xyes; then |
3682 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3683 | else | |
3684 | glibc_header_dir="${with_sysroot}/usr/include" | |
3685 | fi | |
3686 | else | |
3687 | glibc_header_dir=/usr/include | |
3688 | fi | |
3689 | # glibc 2.4 and later provides __stack_chk_fail and | |
3690 | # either __stack_chk_guard, or TLS access to stack guard canary. | |
3691 | if test -f $glibc_header_dir/features.h \ | |
3692 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ | |
3693 | $glibc_header_dir/features.h > /dev/null; then | |
3694 | if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ | |
3695 | $glibc_header_dir/features.h > /dev/null; then | |
3696 | gcc_cv_libc_provides_ssp=yes | |
3697 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \ | |
3698 | $glibc_header_dir/features.h > /dev/null \ | |
3699 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ | |
3700 | $glibc_header_dir/features.h > /dev/null; then | |
3701 | gcc_cv_libc_provides_ssp=yes | |
fed6d628 BF |
3702 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
3703 | $glibc_header_dir/features.h > /dev/null && \ | |
3704 | test -f $glibc_header_dir/bits/uClibc_config.h && \ | |
3705 | $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ | |
3706 | $glibc_header_dir/bits/uClibc_config.h > /dev/null; then | |
3707 | gcc_cv_libc_provides_ssp=yes | |
77008252 | 3708 | fi |
fed6d628 | 3709 | fi |
a6ccdbab | 3710 | ;; |
4cc115a2 TS |
3711 | *-*-gnu*) |
3712 | # Avoid complicated tests (see | |
3713 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
3714 | # simply assert that glibc does provide this, which is true for all | |
3715 | # realistically usable GNU/Hurd configurations. | |
3716 | gcc_cv_libc_provides_ssp=yes;; | |
a6ccdbab EC |
3717 | *-*-darwin*) |
3718 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], | |
3719 | [echo "no __stack_chk_fail on this target"]) | |
3720 | ;; | |
77008252 | 3721 | *) gcc_cv_libc_provides_ssp=no ;; |
a6ccdbab EC |
3722 | esac]) |
3723 | ||
77008252 JJ |
3724 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
3725 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
3726 | [Define if your target C library provides stack protector support]) | |
3727 | fi | |
3728 | ||
ed965309 JJ |
3729 | # Check if TFmode long double should be used by default or not. |
3730 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
3731 | # and later they can use TFmode. | |
3732 | case "$target" in | |
f7cc5390 JM |
3733 | powerpc*-*-linux* | \ |
3734 | powerpc*-*-gnu* | \ | |
ed965309 JJ |
3735 | sparc*-*-linux* | \ |
3736 | s390*-*-linux* | \ | |
3737 | alpha*-*-linux*) | |
3738 | AC_ARG_WITH(long-double-128, | |
3739 | [ --with-long-double-128 Use 128-bit long double by default.], | |
3740 | gcc_cv_target_ldbl128="$with_long_double_128", | |
3741 | [gcc_cv_target_ldbl128=no | |
3742 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3743 | if test "x$with_sysroot" = x; then | |
3744 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
c9ecbf86 JM |
3745 | elif test "x$with_build_sysroot" != "x"; then |
3746 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
ed965309 JJ |
3747 | elif test "x$with_sysroot" = xyes; then |
3748 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3749 | else | |
3750 | glibc_header_dir="${with_sysroot}/usr/include" | |
3751 | fi | |
3752 | else | |
3753 | glibc_header_dir=/usr/include | |
3754 | fi | |
65280f6c | 3755 | changequote(,)dnl |
ed965309 JJ |
3756 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
3757 | $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ | |
65280f6c JJ |
3758 | && gcc_cv_target_ldbl128=yes |
3759 | changequote([,])dnl | |
3760 | ]) | |
ed965309 JJ |
3761 | ;; |
3762 | esac | |
3763 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
3764 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
3765 | [Define if TFmode long double should be the default]) | |
3766 | fi | |
3767 | ||
81bf3d9e RH |
3768 | # Find out what GC implementation we want, or may, use. |
3769 | AC_ARG_WITH(gc, | |
59415997 | 3770 | [ --with-gc={page,zone} choose the garbage collection mechanism to use |
e8bec136 | 3771 | with the compiler], |
81bf3d9e | 3772 | [case "$withval" in |
08cee789 | 3773 | page) |
81bf3d9e RH |
3774 | GGC=ggc-$withval |
3775 | ;; | |
08cee789 DJ |
3776 | zone) |
3777 | GGC=ggc-$withval | |
3778 | AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3779 | ;; | |
81bf3d9e RH |
3780 | *) |
3781 | AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3782 | ;; | |
3783 | esac], | |
130fadbb | 3784 | [GGC=ggc-page]) |
81bf3d9e RH |
3785 | AC_SUBST(GGC) |
3786 | echo "Using $GGC for garbage collection." | |
3787 | ||
00020c16 ILT |
3788 | # Libraries to use on the host. This will normally be set by the top |
3789 | # level Makefile. Here we simply capture the value for our Makefile. | |
3790 | if test -z "${HOST_LIBS+set}"; then | |
3791 | HOST_LIBS= | |
3792 | fi | |
3793 | AC_SUBST(HOST_LIBS) | |
3794 | ||
3c809ba4 | 3795 | # Use the system's zlib library. |
b8dad04b ZW |
3796 | zlibdir=-L../zlib |
3797 | zlibinc="-I\$(srcdir)/../zlib" | |
3c809ba4 AG |
3798 | AC_ARG_WITH(system-zlib, |
3799 | [ --with-system-zlib use installed libz], | |
3800 | zlibdir= | |
3801 | zlibinc= | |
3802 | ) | |
3803 | AC_SUBST(zlibdir) | |
3804 | AC_SUBST(zlibinc) | |
3805 | ||
dc6746e7 PT |
3806 | dnl Very limited version of automake's enable-maintainer-mode |
3807 | ||
3808 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3809 | dnl maintainer-mode is disabled by default | |
3810 | AC_ARG_ENABLE(maintainer-mode, | |
e8bec136 RO |
3811 | [ --enable-maintainer-mode |
3812 | enable make rules and dependencies not useful | |
dc6746e7 PT |
3813 | (and sometimes confusing) to the casual installer], |
3814 | maintainer_mode=$enableval, | |
3815 | maintainer_mode=no) | |
3816 | ||
3817 | AC_MSG_RESULT($maintainer_mode) | |
3818 | ||
3819 | if test "$maintainer_mode" = "yes"; then | |
3820 | MAINT='' | |
3821 | else | |
3822 | MAINT='#' | |
3823 | fi | |
3824 | AC_SUBST(MAINT)dnl | |
3825 | ||
630327c3 NN |
3826 | # -------------- |
3827 | # Language hooks | |
3828 | # -------------- | |
3829 | ||
571a8de5 DE |
3830 | # Make empty files to contain the specs and options for each language. |
3831 | # Then add #include lines to for a compiler that has specs and/or options. | |
3832 | ||
cc11cc9b | 3833 | subdirs= |
d7b42618 | 3834 | lang_opt_files= |
571a8de5 | 3835 | lang_specs_files= |
3103b7db | 3836 | lang_tree_files= |
571a8de5 DE |
3837 | # These (without "all_") are set in each config-lang.in. |
3838 | # `language' must be a single word so is spelled singularly. | |
3839 | all_languages= | |
571a8de5 | 3840 | all_compilers= |
47ad7893 | 3841 | all_outputs='Makefile gccbug' |
571a8de5 | 3842 | # List of language makefile fragments. |
2ed26f6b ZW |
3843 | all_lang_makefrags= |
3844 | # List of language subdirectory makefiles. Deprecated. | |
571a8de5 | 3845 | all_lang_makefiles= |
11a67599 | 3846 | # Additional files for gengtype |
ef69da62 | 3847 | all_gtfiles="$target_gtfiles" |
571a8de5 | 3848 | |
cc11cc9b PB |
3849 | # These are the languages that are set in --enable-languages, |
3850 | # and are available in the GCC tree. | |
3851 | all_selected_languages= | |
3852 | ||
571a8de5 DE |
3853 | # Add the language fragments. |
3854 | # Languages are added via two mechanisms. Some information must be | |
3855 | # recorded in makefile variables, these are defined in config-lang.in. | |
3856 | # We accumulate them and plug them into the main Makefile. | |
3857 | # The other mechanism is a set of hooks for each of the main targets | |
3858 | # like `clean', `install', etc. | |
3859 | ||
571a8de5 DE |
3860 | language_hooks="Make-hooks" |
3861 | ||
cc11cc9b | 3862 | for lang in ${srcdir}/*/config-lang.in |
571a8de5 | 3863 | do |
cc11cc9b | 3864 | changequote(,)dnl |
1546bb64 PB |
3865 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
3866 | ||
cc11cc9b PB |
3867 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
3868 | if test "x$lang_alias" = x | |
3869 | then | |
3870 | echo "$lang doesn't set \$language." 1>&2 | |
3871 | exit 1 | |
3872 | fi | |
3873 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
3874 | subdirs="$subdirs $subdir" | |
349c3166 OH |
3875 | |
3876 | # $gcc_subdir is where the gcc integration files are to be found | |
3877 | # for a language, both for internal compiler purposes (compiler | |
3878 | # sources implementing front-end to GCC tree converters), and for | |
3879 | # build infrastructure purposes (Make-lang.in, etc.) | |
3880 | # | |
3881 | # This will be <subdir> (relative to $srcdir) if a line like | |
3882 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
3883 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
3884 | # otherwise. | |
3885 | # | |
3886 | # Except for the language alias (fetched above), the regular | |
3887 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
3888 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
3889 | # only this and the language alias. | |
3890 | ||
3891 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
3892 | if [ "$gcc_subdir" = "" ]; then | |
3893 | gcc_subdir="$subdir" | |
3894 | fi | |
3895 | ||
cc11cc9b PB |
3896 | case ",$enable_languages," in |
3897 | *,$lang_alias,*) | |
3898 | all_selected_languages="$all_selected_languages $lang_alias" | |
349c3166 OH |
3899 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
3900 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
cc11cc9b PB |
3901 | fi |
3902 | ;; | |
3903 | esac | |
3904 | changequote([,])dnl | |
3905 | ||
cc11cc9b PB |
3906 | language= |
3907 | boot_language= | |
3908 | compilers= | |
cc11cc9b PB |
3909 | outputs= |
3910 | gtfiles= | |
1546bb64 | 3911 | subdir_requires= |
349c3166 | 3912 | . ${srcdir}/$gcc_subdir/config-lang.in |
cc11cc9b PB |
3913 | if test "x$language" = x |
3914 | then | |
349c3166 | 3915 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
cc11cc9b PB |
3916 | exit 1 |
3917 | fi | |
1546bb64 PB |
3918 | |
3919 | ok=: | |
3920 | case ",$enable_languages," in | |
3921 | *,$lang_alias,*) ;; | |
3922 | *) | |
3923 | for i in $subdir_requires; do | |
b6348cb3 | 3924 | test -f "${srcdir}/$i/config-lang.in" && continue |
1546bb64 PB |
3925 | ok=false |
3926 | break | |
3927 | done | |
3928 | ;; | |
3929 | esac | |
3930 | $ok || continue | |
3931 | ||
349c3166 OH |
3932 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
3933 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
3934 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
1546bb64 | 3935 | fi |
349c3166 OH |
3936 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
3937 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
1546bb64 | 3938 | fi |
349c3166 OH |
3939 | if test -f ${srcdir}/$gcc_subdir/Makefile.in |
3940 | then all_lang_makefiles="$gcc_subdir/Makefile" | |
cc11cc9b PB |
3941 | fi |
3942 | all_languages="$all_languages $language" | |
cc11cc9b | 3943 | all_compilers="$all_compilers $compilers" |
cc11cc9b | 3944 | all_outputs="$all_outputs $outputs" |
11a67599 | 3945 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
571a8de5 DE |
3946 | done |
3947 | ||
8ac9d31f TJ |
3948 | # Pick up gtfiles for c |
3949 | gtfiles= | |
8ac9d31f | 3950 | . ${srcdir}/c-config-lang.in |
11a67599 | 3951 | all_gtfiles="$all_gtfiles [[c]] $gtfiles" |
8ac9d31f | 3952 | |
cbc59f01 | 3953 | check_languages= |
cc11cc9b | 3954 | for language in $all_selected_languages |
cbc59f01 | 3955 | do |
cc11cc9b | 3956 | check_languages="$check_languages check-$language" |
cbc59f01 DD |
3957 | done |
3958 | ||
62b81e45 | 3959 | # We link each language in with a set of hooks, reached indirectly via |
cc11cc9b | 3960 | # lang.${target}. Only do so for selected languages. |
571a8de5 DE |
3961 | |
3962 | rm -f Make-hooks | |
3963 | touch Make-hooks | |
bd97af06 | 3964 | target_list="all.cross start.encap rest.encap tags \ |
bcc3d150 BM |
3965 | install-common install-man install-info install-pdf dvi pdf \ |
3966 | html uninstall info man srcextra srcman srcinfo \ | |
2a4c0366 | 3967 | mostlyclean clean distclean maintainer-clean install-plugin" |
cc11cc9b | 3968 | |
571a8de5 DE |
3969 | for t in $target_list |
3970 | do | |
3971 | x= | |
cc11cc9b | 3972 | for lang in $all_selected_languages |
571a8de5 | 3973 | do |
cc11cc9b | 3974 | x="$x $lang.$t" |
571a8de5 DE |
3975 | done |
3976 | echo "lang.$t: $x" >> Make-hooks | |
3977 | done | |
3978 | ||
630327c3 NN |
3979 | # -------- |
3980 | # UNSORTED | |
3981 | # -------- | |
3982 | ||
cc06d68c | 3983 | # Create .gdbinit. |
296e46bd | 3984 | |
cc06d68c GP |
3985 | echo "dir ." > .gdbinit |
3986 | echo "dir ${srcdir}" >> .gdbinit | |
3987 | if test x$gdb_needs_out_file_path = xyes | |
3988 | then | |
3989 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
3990 | fi | |
3991 | if test "x$subdirs" != x; then | |
3992 | for s in $subdirs | |
3993 | do | |
3994 | echo "dir ${srcdir}/$s" >> .gdbinit | |
3995 | done | |
296e46bd | 3996 | fi |
cc06d68c | 3997 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
296e46bd | 3998 | |
15c723f3 | 3999 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
d062c304 | 4000 | AC_SUBST(gcc_tooldir) |
4c112cda | 4001 | AC_SUBST(dollar) |
d062c304 | 4002 | |
2bbea3a6 RH |
4003 | # Find a directory in which to install a shared libgcc. |
4004 | ||
4005 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
e8bec136 RO |
4006 | [ --enable-version-specific-runtime-libs |
4007 | specify that runtime libraries should be | |
4008 | installed in a compiler-specific directory]) | |
2bbea3a6 | 4009 | |
5b15f277 | 4010 | AC_ARG_WITH(slibdir, |
22482f74 | 4011 | [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]], |
5b15f277 RH |
4012 | slibdir="$with_slibdir", |
4013 | if test "${enable_version_specific_runtime_libs+set}" = set; then | |
2bbea3a6 | 4014 | slibdir='$(libsubdir)' |
5b15f277 | 4015 | elif test "$host" != "$target"; then |
2bbea3a6 RH |
4016 | slibdir='$(build_tooldir)/lib' |
4017 | else | |
5b15f277 RH |
4018 | slibdir='$(libdir)' |
4019 | fi) | |
2bbea3a6 RH |
4020 | AC_SUBST(slibdir) |
4021 | ||
46f18e7b RK |
4022 | # Substitute configuration variables |
4023 | AC_SUBST(subdirs) | |
8ac9d31f | 4024 | AC_SUBST(srcdir) |
46f18e7b | 4025 | AC_SUBST(all_compilers) |
e2500fed | 4026 | AC_SUBST(all_gtfiles) |
2ed26f6b | 4027 | AC_SUBST(all_lang_makefrags) |
9f3d1bc2 BK |
4028 | AC_SUBST(all_lang_makefiles) |
4029 | AC_SUBST(all_languages) | |
cc11cc9b | 4030 | AC_SUBST(all_selected_languages) |
9f3d1bc2 BK |
4031 | AC_SUBST(build_exeext) |
4032 | AC_SUBST(build_install_headers_dir) | |
4033 | AC_SUBST(build_xm_file_list) | |
e22340b0 | 4034 | AC_SUBST(build_xm_include_list) |
11642c3a | 4035 | AC_SUBST(build_xm_defines) |
a0e527e3 | 4036 | AC_SUBST(build_file_translate) |
cbc59f01 | 4037 | AC_SUBST(check_languages) |
9f3d1bc2 | 4038 | AC_SUBST(cpp_install_dir) |
2ed26f6b ZW |
4039 | AC_SUBST(xmake_file) |
4040 | AC_SUBST(tmake_file) | |
aca600aa AS |
4041 | AC_SUBST(TM_ENDIAN_CONFIG) |
4042 | AC_SUBST(TM_MULTILIB_CONFIG) | |
4043 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
30500d84 | 4044 | AC_SUBST(extra_gcc_objs) |
9f3d1bc2 | 4045 | AC_SUBST(extra_headers_list) |
46f18e7b | 4046 | AC_SUBST(extra_objs) |
9f3d1bc2 BK |
4047 | AC_SUBST(extra_parts) |
4048 | AC_SUBST(extra_passes) | |
4049 | AC_SUBST(extra_programs) | |
9f3d1bc2 | 4050 | AC_SUBST(float_h_file) |
cc1e60ea | 4051 | AC_SUBST(gcc_config_arguments) |
9f3d1bc2 | 4052 | AC_SUBST(gcc_gxx_include_dir) |
9f3d1bc2 | 4053 | AC_SUBST(host_exeext) |
46f18e7b | 4054 | AC_SUBST(host_xm_file_list) |
e22340b0 | 4055 | AC_SUBST(host_xm_include_list) |
11642c3a | 4056 | AC_SUBST(host_xm_defines) |
476d9098 | 4057 | AC_SUBST(out_host_hook_obj) |
9f3d1bc2 | 4058 | AC_SUBST(install) |
d7b42618 | 4059 | AC_SUBST(lang_opt_files) |
9f3d1bc2 | 4060 | AC_SUBST(lang_specs_files) |
3103b7db | 4061 | AC_SUBST(lang_tree_files) |
46f18e7b | 4062 | AC_SUBST(local_prefix) |
9f3d1bc2 BK |
4063 | AC_SUBST(md_file) |
4064 | AC_SUBST(objc_boehm_gc) | |
4065 | AC_SUBST(out_file) | |
4066 | AC_SUBST(out_object_file) | |
9f3d1bc2 BK |
4067 | AC_SUBST(thread_file) |
4068 | AC_SUBST(tm_file_list) | |
e22340b0 | 4069 | AC_SUBST(tm_include_list) |
d5355cb2 | 4070 | AC_SUBST(tm_defines) |
11642c3a | 4071 | AC_SUBST(tm_p_file_list) |
e22340b0 ZW |
4072 | AC_SUBST(tm_p_include_list) |
4073 | AC_SUBST(xm_file_list) | |
4074 | AC_SUBST(xm_include_list) | |
3d9d2476 | 4075 | AC_SUBST(xm_defines) |
207bf79d | 4076 | AC_SUBST(use_gcc_stdint) |
aac69a49 NC |
4077 | AC_SUBST(c_target_objs) |
4078 | AC_SUBST(cxx_target_objs) | |
c776a6d0 | 4079 | AC_SUBST(fortran_target_objs) |
11642c3a | 4080 | AC_SUBST(target_cpu_default) |
46f18e7b | 4081 | |
46f18e7b RK |
4082 | AC_SUBST_FILE(language_hooks) |
4083 | ||
7903cebc NN |
4084 | # Echo link setup. |
4085 | if test x${build} = x${host} ; then | |
4086 | if test x${host} = x${target} ; then | |
4087 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
4088 | else | |
4089 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
4090 | echo " from ${host} to ${target}." 1>&2 | |
4091 | fi | |
46f18e7b | 4092 | else |
7903cebc NN |
4093 | if test x${host} = x${target} ; then |
4094 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
4095 | echo " for ${target}." 1>&2 | |
4096 | else | |
4097 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
4098 | echo " from ${host} to ${target}." 1>&2 | |
4099 | fi | |
46f18e7b RK |
4100 | fi |
4101 | ||
6de9cd9a DN |
4102 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
4103 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
4104 | ||
acd26225 KG |
4105 | case "${GMPLIBS}" in |
4106 | *-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;; | |
4107 | esac | |
4108 | ||
f8bf9252 SP |
4109 | AC_ARG_VAR(PPLLIBS,[How to link PPL]) |
4110 | AC_ARG_VAR(PPLINC,[How to find PPL include files]) | |
4111 | ||
4112 | AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG]) | |
4113 | AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files]) | |
4114 | if test "x${CLOOGLIBS}" != "x" ; then | |
4115 | AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.]) | |
4116 | fi | |
4117 | ||
68a607d8 DN |
4118 | # Check for plugin support |
4119 | AC_ARG_ENABLE(plugin, | |
4120 | [ --enable-plugin enable plugin support], | |
4121 | enable_plugin=$enableval, | |
4122 | enable_plugin=yes; default_plugin=yes) | |
4123 | ||
4124 | pluginlibs= | |
4125 | if test x"$enable_plugin" = x"yes"; then | |
4126 | # Check that the host supports -rdynamic and -ldl | |
4127 | have_rdynamic=no | |
4128 | have_dl=no | |
4129 | saved_LDFLAGS="$LDFLAGS" | |
4130 | saved_LIBS="$LIBS" | |
4131 | LIBS= | |
4132 | ||
4133 | # Check -rdynamic | |
4134 | LDFLAGS="$LDFLAGS -rdynamic" | |
4135 | AC_MSG_CHECKING([for -rdynamic]) | |
4136 | AC_TRY_LINK([],[return 0;], | |
4137 | [AC_MSG_RESULT([yes]); have_rdynamic=yes], | |
4138 | [AC_MSG_RESULT([no])]) | |
4139 | if test x"$have_rdynamic" = x"yes" ; then | |
4140 | pluginlibs="-rdynamic" | |
4141 | fi | |
4142 | ||
4143 | # Check -ldl | |
4144 | LDFLAGS="$LDFLAGS -ldl" | |
4145 | AC_MSG_CHECKING([for -ldl]) | |
4146 | AC_TRY_LINK( | |
4147 | [#include <dlfcn.h>], | |
4148 | [volatile int f = 0; if (f) dlopen ("dummy", 0);], | |
4149 | [AC_MSG_RESULT([yes]); have_dl=yes], | |
4150 | [AC_MSG_RESULT([no])]) | |
4151 | if test x"$have_dl" = x"yes"; then | |
4152 | pluginlibs="$pluginlibs -ldl" | |
4153 | fi | |
4154 | ||
4155 | # Check that we can build shared objects with -fPIC -shared | |
4156 | LDFLAGS="$LDFLAGS -fPIC -shared" | |
4157 | AC_MSG_CHECKING([for -fPIC -shared]) | |
4158 | AC_TRY_LINK( | |
4159 | [extern int X;],[return X == 0;], | |
4160 | [AC_MSG_RESULT([yes]); have_pic_shared=yes], | |
4161 | [AC_MSG_RESULT([no]); have_pic_shared=no]) | |
4162 | if test x"$have_pic_shared" != x"yes"; then | |
4163 | pluginlibs= | |
4164 | enable_plugin=no | |
4165 | fi | |
4166 | ||
4167 | # If plugin support had been requested but not available, fail. | |
4168 | if test x"$enable_plugin" = x"no" ; then | |
4169 | if test x"$default_plugin" != x"yes"; then | |
4170 | AC_MSG_ERROR([ | |
4171 | Building GCC with plugin support requires a host that supports | |
4172 | -fPIC, -shared, -ldl and -rdynamic.]) | |
4173 | fi | |
4174 | fi | |
4175 | ||
4176 | LDFLAGS="$saved_LDFLAGS" | |
4177 | LIBS="$saved_LIBS" | |
4178 | fi | |
4179 | ||
4180 | AC_SUBST(pluginlibs) | |
4181 | AC_SUBST(enable_plugin) | |
4182 | if test x"$enable_plugin" = x"yes"; then | |
4183 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
4184 | fi | |
4185 | ||
46f18e7b RK |
4186 | # Configure the subdirectories |
4187 | # AC_CONFIG_SUBDIRS($subdirs) | |
4188 | ||
4189 | # Create the Makefile | |
5891b37d | 4190 | # and configure language subdirectories |
914c5af7 NN |
4191 | AC_CONFIG_FILES($all_outputs) |
4192 | ||
4193 | AC_CONFIG_COMMANDS([default], | |
cdcc6a01 | 4194 | [ |
f1faaabd NN |
4195 | case ${CONFIG_HEADERS} in |
4196 | *auto-host.h:config.in*) | |
4197 | echo > cstamp-h ;; | |
cdcc6a01 | 4198 | esac |
2ed26f6b | 4199 | # Make sure all the subdirs exist. |
3b620440 | 4200 | for d in $subdirs doc build |
2ed26f6b | 4201 | do |
2ed26f6b | 4202 | test -d $d || mkdir $d |
2ed26f6b | 4203 | done |
0d24f4d1 | 4204 | ], |
35f06ae4 | 4205 | [subdirs='$subdirs']) |
914c5af7 | 4206 | AC_OUTPUT |