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2cd18f76 | 1 | # configure.ac for GCC |
01dc27ef | 2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
6ccd4361 | 4 | # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
f2397fc4 | 5 | # 2007, 2008, 2009 Free Software Foundation, Inc. |
01dc27ef | 6 | |
f12b58b3 | 7 | #This file is part of GCC. |
01dc27ef | 8 | |
f12b58b3 | 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 | |
8c4c00c1 | 11 | #Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 12 | #version. |
01dc27ef | 13 | |
f12b58b3 | 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. | |
01dc27ef | 18 | |
19 | #You should have received a copy of the GNU General Public License | |
8c4c00c1 | 20 | #along with GCC; see the file COPYING3. If not see |
21 | #<http://www.gnu.org/licenses/>. | |
01dc27ef | 22 | |
7349ace9 | 23 | # -------------------------------- |
24 | # Initialization and sanity checks | |
25 | # -------------------------------- | |
26 | ||
81a71e2b | 27 | AC_PREREQ(2.64) |
1211e6bc | 28 | AC_INIT |
29 | AC_CONFIG_SRCDIR(tree.c) | |
764fc592 | 30 | AC_CONFIG_HEADER(auto-host.h:config.in) |
805483cf | 31 | |
f32e3360 | 32 | gcc_version=`cat $srcdir/BASE-VER` |
33 | ||
7349ace9 | 34 | # Determine the host, build, and target systems |
1211e6bc | 35 | AC_CANONICAL_BUILD |
36 | AC_CANONICAL_HOST | |
37 | AC_CANONICAL_TARGET | |
7349ace9 | 38 | |
d58156a1 | 39 | # Determine the noncanonical target name, for directory use. |
dabbc00f | 40 | ACX_NONCANONICAL_TARGET |
d58156a1 | 41 | |
4f442f07 | 42 | # Determine the target- and build-specific subdirectories |
43 | GCC_TOPLEV_SUBDIRS | |
44 | ||
7349ace9 | 45 | # Set program_transform_name |
46 | AC_ARG_PROGRAM | |
01dc27ef | 47 | |
279894f2 | 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 | |
edf2430c | 71 | *** building gcc. Please change the environment variable |
279894f2 | 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 "$gcc_exec_prefix_setting" != "ok"; then | |
95 | AC_MSG_ERROR([ | |
96 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
edf2430c | 97 | *** building gcc. Please change the environment variable |
279894f2 | 98 | *** and run configure again.]) |
99 | fi | |
100 | ||
7349ace9 | 101 | # ----------- |
102 | # Directories | |
103 | # ----------- | |
104 | ||
105 | # Specify the local prefix | |
106 | local_prefix= | |
107 | AC_ARG_WITH(local-prefix, | |
108 | [ --with-local-prefix=DIR specifies directory to put local include], | |
109 | [case "${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 | ||
0bf9691e | 134 | # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. |
7349ace9 | 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='${libsubdir}/include/c++' | |
138 | else | |
0bf9691e | 139 | libstdcxx_incdir='include/c++/$(version)' |
140 | if test x$host != x$target; then | |
141 | libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
142 | fi | |
fc5f9e0c | 143 | gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir" |
7349ace9 | 144 | fi |
145 | fi | |
146 | ||
147 | AC_ARG_WITH(cpp_install_dir, | |
148 | [ --with-cpp-install-dir=DIR | |
149 | install the user visible C preprocessor in DIR | |
150 | (relative to PREFIX) as well as PREFIX/bin], | |
151 | [if test x$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 | ||
37c96b91 | 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 | ||
a6b4c5a9 | 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 "$generated_files_in_srcdir" = "yes"; then | |
176 | GENINSRC='' | |
a6b4c5a9 | 177 | else |
178 | GENINSRC='#' | |
a6b4c5a9 | 179 | fi |
180 | AC_SUBST(GENINSRC) | |
37c96b91 | 181 | |
7349ace9 | 182 | # ------------------- |
183 | # Find default linker | |
184 | # ------------------- | |
01dc27ef | 185 | |
186 | # With GNU ld | |
187 | AC_ARG_WITH(gnu-ld, | |
188 | [ --with-gnu-ld arrange to work with GNU ld.], | |
c4f70bb2 | 189 | gnu_ld_flag="$with_gnu_ld", |
190 | gnu_ld_flag=no) | |
01dc27ef | 191 | |
f07251bc | 192 | # With pre-defined ld |
193 | AC_ARG_WITH(ld, | |
77eb56d4 | 194 | [ --with-ld arrange to use the specified ld (full pathname)], |
f8b7dbdb | 195 | DEFAULT_LINKER="$with_ld") |
196 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
197 | if test ! -x "$DEFAULT_LINKER"; then | |
b452b31a | 198 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
16e09e89 | 199 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
f07251bc | 200 | gnu_ld_flag=yes |
201 | fi | |
42f1312d | 202 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
203 | [Define to enable the use of a default linker.]) | |
f07251bc | 204 | fi |
205 | ||
c159e0b7 | 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, $gnu_ld, [Define if using GNU ld.]) | |
208 | ||
7349ace9 | 209 | AC_MSG_CHECKING([whether a default linker was specified]) |
210 | if test x"${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 ($DEFAULT_LINKER - GNU ld)]) | |
215 | fi | |
216 | else | |
217 | AC_MSG_RESULT(no) | |
218 | fi | |
219 | ||
9c948bc2 | 220 | # With demangler in GNU ld |
221 | AC_ARG_WITH(demangler-in-ld, | |
222 | [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
223 | demangler_in_ld="$with_demangler_in_ld", | |
224 | demangler_in_ld=no) | |
225 | ||
7349ace9 | 226 | # ---------------------- |
227 | # Find default assembler | |
228 | # ---------------------- | |
229 | ||
01dc27ef | 230 | # With GNU as |
231 | AC_ARG_WITH(gnu-as, | |
77eb56d4 | 232 | [ --with-gnu-as arrange to work with GNU as], |
c4f70bb2 | 233 | gas_flag="$with_gnu_as", |
234 | gas_flag=no) | |
01dc27ef | 235 | |
f07251bc | 236 | AC_ARG_WITH(as, |
77eb56d4 | 237 | [ --with-as arrange to use the specified as (full pathname)], |
f8b7dbdb | 238 | DEFAULT_ASSEMBLER="$with_as") |
239 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
240 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
b452b31a | 241 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
16e09e89 | 242 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
f07251bc | 243 | gas_flag=yes |
244 | fi | |
42f1312d | 245 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
246 | [Define to enable the use of a default assembler.]) | |
f8b7dbdb | 247 | fi |
f07251bc | 248 | |
c6429fa9 | 249 | gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi` |
250 | AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.]) | |
251 | ||
7349ace9 | 252 | AC_MSG_CHECKING([whether a default assembler was specified]) |
253 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
254 | if test x"$gas_flag" = x"no"; then | |
255 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
6e014aa3 | 256 | else |
7349ace9 | 257 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
6e014aa3 | 258 | fi |
7349ace9 | 259 | else |
260 | AC_MSG_RESULT(no) | |
6e014aa3 | 261 | fi |
01dc27ef | 262 | |
7349ace9 | 263 | # --------------- |
264 | # Find C compiler | |
265 | # --------------- | |
1c6c0617 | 266 | |
f7a804c7 | 267 | # If a non-executable a.out is present (e.g. created by GNU as above even if |
268 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
269 | # file, even when creating an executable, so an execution test fails. | |
270 | # Remove possible default executable files to avoid this. | |
271 | # | |
272 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
273 | # Autoconf includes it. | |
274 | rm -f a.out a.exe b.out | |
275 | ||
0fa54ff1 | 276 | # Find the native compiler |
277 | AC_PROG_CC | |
524a54cf | 278 | AM_PROG_CC_C_O |
7ab76cec | 279 | AC_PROG_CXX |
f1984c57 | 280 | ACX_PROG_GNAT([-I"$srcdir"/ada]) |
281 | ||
0fa54ff1 | 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 $@' | |
287 | fi | |
288 | AC_SUBST(NO_MINUS_C_MINUS_O) | |
289 | AC_SUBST(OUTPUT_OPTION) | |
290 | ||
c81c13fb | 291 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer |
292 | # optimizations to be activated explicitly by the toplevel. | |
293 | case "$CC" in | |
294 | */prev-gcc/xgcc*) ;; | |
295 | *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;; | |
296 | esac | |
297 | AC_SUBST(CFLAGS) | |
298 | ||
966842d4 | 299 | # ------------------------- |
300 | # Check C compiler features | |
301 | # ------------------------- | |
302 | ||
b9146087 | 303 | AC_USE_SYSTEM_EXTENSIONS |
7349ace9 | 304 | AC_PROG_CPP |
305 | AC_C_INLINE | |
7349ace9 | 306 | |
7349ace9 | 307 | # sizeof(char) is 1 by definition. |
b085c511 | 308 | AC_CHECK_SIZEOF(void *) |
309 | AC_CHECK_SIZEOF(short) | |
310 | AC_CHECK_SIZEOF(int) | |
311 | AC_CHECK_SIZEOF(long) | |
cd29f3a4 | 312 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
313 | AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) | |
82e964b0 | 314 | GCC_STDINT_TYPES |
7349ace9 | 315 | |
7349ace9 | 316 | # --------------------- |
317 | # Warnings and checking | |
318 | # --------------------- | |
319 | ||
1f59d204 | 320 | # Check $CC warning features (if it's GCC). |
321 | # We want to use -pedantic, but we don't want warnings about | |
322 | # * 'long long' | |
323 | # * variadic macros | |
1d752508 | 324 | # * overlong strings |
1f59d204 | 325 | # So, we only use -pedantic if we can disable those warnings. |
326 | ||
9fce6407 | 327 | ACX_PROG_CC_WARNING_OPTS( |
7ab76cec | 328 | m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn]) |
9fce6407 | 329 | ACX_PROG_CC_WARNING_OPTS( |
7ab76cec | 330 | m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])), |
331 | [c_loose_warn]) | |
332 | ACX_PROG_CC_WARNING_OPTS( | |
333 | m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn]) | |
334 | ACX_PROG_CC_WARNING_OPTS( | |
335 | m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) | |
9fce6407 | 336 | ACX_PROG_CC_WARNING_ALMOST_PEDANTIC( |
c3aa71d4 | 337 | m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], |
338 | [-Wno-overlength-strings])), [strict_warn]) | |
c7cc973b | 339 | ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn]) |
340 | ||
341 | # The above macros do nothing if the compiler is not GCC. However, the | |
7ab76cec | 342 | # Makefile has more goo to add other flags, so these variables are used |
343 | # to enable warnings only for GCC. | |
0fa54ff1 | 344 | warn_cflags= |
7ab76cec | 345 | warn_cxxflags= |
0fa54ff1 | 346 | if test "x$GCC" = "xyes"; then |
347 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
7ab76cec | 348 | warn_cxxflags='$(GCC_WARN_CXXFLAGS)' |
0fa54ff1 | 349 | fi |
350 | AC_SUBST(warn_cflags) | |
7ab76cec | 351 | AC_SUBST(warn_cxxflags) |
0fa54ff1 | 352 | |
e3ca137a | 353 | # Enable expensive internal checks |
1af67e62 | 354 | is_release= |
355 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
356 | is_release=yes | |
357 | fi | |
a179eb24 | 358 | |
485205d1 | 359 | AC_ARG_ENABLE(checking, |
0c4e40c5 | 360 | [ --enable-checking[=LIST] |
361 | enable expensive run-time checks. With LIST, | |
362 | enable only specific categories of checks. | |
5391b316 | 363 | Categories are: yes,no,all,none,release. |
75a70cf9 | 364 | Flags are: assert,df,fold,gc,gcac,gimple,misc, |
f03e0ae4 | 365 | rtlflag,rtl,runtime,tree,valgrind,types.], |
a1fa05f0 | 366 | [ac_checking_flags="${enableval}"],[ |
367 | # Determine the default checks. | |
368 | if test x$is_release = x ; then | |
369 | ac_checking_flags=yes | |
370 | else | |
371 | ac_checking_flags=release | |
372 | fi]) | |
a1fa05f0 | 373 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
624a5fae | 374 | for check in release $ac_checking_flags |
a1fa05f0 | 375 | do |
376 | case $check in | |
5391b316 | 377 | # these set all the flags to specific states |
314966f4 | 378 | yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; |
5391b316 | 379 | ac_fold_checking= ; ac_gc_checking=1 ; |
75a70cf9 | 380 | ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; |
fcd42b1e | 381 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 382 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
80296012 | 383 | ac_types_checking=1 ;; |
5ccba2dc | 384 | no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; |
5391b316 | 385 | ac_fold_checking= ; ac_gc_checking= ; |
75a70cf9 | 386 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
fcd42b1e | 387 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
f03e0ae4 | 388 | ac_tree_checking= ; ac_valgrind_checking= ; |
389 | ac_types_checking= ;; | |
5ccba2dc | 390 | all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; |
5391b316 | 391 | ac_fold_checking=1 ; ac_gc_checking=1 ; |
75a70cf9 | 392 | ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; |
5391b316 | 393 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
f03e0ae4 | 394 | ac_tree_checking=1 ; ac_valgrind_checking= ; |
395 | ac_types_checking=1 ;; | |
5ccba2dc | 396 | release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; |
5391b316 | 397 | ac_fold_checking= ; ac_gc_checking= ; |
75a70cf9 | 398 | ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; |
5391b316 | 399 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; |
f03e0ae4 | 400 | ac_tree_checking= ; ac_valgrind_checking= ; |
401 | ac_types_checking= ;; | |
5391b316 | 402 | # these enable particular checks |
a1fa05f0 | 403 | assert) ac_assert_checking=1 ;; |
5ccba2dc | 404 | df) ac_df_checking=1 ;; |
a1fa05f0 | 405 | fold) ac_fold_checking=1 ;; |
406 | gc) ac_gc_checking=1 ;; | |
407 | gcac) ac_gc_always_collect=1 ;; | |
75a70cf9 | 408 | gimple) ac_gimple_checking=1 ;; |
a1fa05f0 | 409 | misc) ac_checking=1 ;; |
a1fa05f0 | 410 | rtl) ac_rtl_checking=1 ;; |
5391b316 | 411 | rtlflag) ac_rtlflag_checking=1 ;; |
06350693 | 412 | runtime) ac_runtime_checking=1 ;; |
a1fa05f0 | 413 | tree) ac_tree_checking=1 ;; |
f03e0ae4 | 414 | types) ac_types_checking=1 ;; |
5391b316 | 415 | valgrind) ac_valgrind_checking=1 ;; |
a1fa05f0 | 416 | *) AC_MSG_ERROR(unknown check category $check) ;; |
417 | esac | |
418 | done | |
419 | IFS="$ac_save_IFS" | |
420 | ||
0d74b24d | 421 | nocommon_flag="" |
42f1312d | 422 | if test x$ac_checking != x ; then |
423 | AC_DEFINE(ENABLE_CHECKING, 1, | |
424 | [Define if you want more run-time sanity checks. This one gets a grab | |
425 | bag of miscellaneous but relatively cheap checks.]) | |
0d74b24d | 426 | nocommon_flag=-fno-common |
42f1312d | 427 | fi |
0d74b24d | 428 | AC_SUBST(nocommon_flag) |
5ccba2dc | 429 | if test x$ac_df_checking != x ; then |
430 | AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
431 | [Define if you want more run-time sanity checks for dataflow.]) | |
432 | fi | |
997731eb | 433 | if test x$ac_assert_checking != x ; then |
434 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
435 | [Define if you want assertions enabled. This is a cheap check.]) | |
436 | fi | |
75a70cf9 | 437 | if test x$ac_gimple_checking != x ; then |
438 | AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
439 | [Define if you want operations on GIMPLE (the basic data structure of | |
440 | the high-level optimizers) to be checked for dynamic type safety at | |
441 | runtime. This is moderately expensive.]) | |
442 | fi | |
fcd42b1e | 443 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
06350693 | 444 | if test x$ac_runtime_checking != x ; then |
445 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
446 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
447 | fi | |
42f1312d | 448 | if test x$ac_tree_checking != x ; then |
449 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
450 | [Define if you want all operations on trees (the basic data | |
451 | structure of the front ends) to be checked for dynamic type safety | |
4e7212d1 | 452 | at runtime. This is moderately expensive. The tree browser debugging |
453 | routines will also be enabled by this option. | |
454 | ]) | |
455 | TREEBROWSER=tree-browser.o | |
42f1312d | 456 | fi |
f03e0ae4 | 457 | if test x$ac_types_checking != x ; then |
458 | AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
459 | [Define if you want all gimple types to be verified after gimplifiation. | |
460 | This is cheap. | |
461 | ]) | |
462 | fi | |
4e7212d1 | 463 | AC_SUBST(TREEBROWSER) |
42f1312d | 464 | if test x$ac_rtl_checking != x ; then |
465 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
466 | [Define if you want all operations on RTL (the basic data structure | |
467 | of the optimizer and back end) to be checked for dynamic type safety | |
468 | at runtime. This is quite expensive.]) | |
469 | fi | |
b0e7e012 | 470 | if test x$ac_rtlflag_checking != x ; then |
471 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
472 | [Define if you want RTL flag accesses to be checked against the RTL | |
473 | codes that are supported for each access macro. This is relatively | |
474 | cheap.]) | |
475 | fi | |
42f1312d | 476 | if test x$ac_gc_checking != x ; then |
477 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
478 | [Define if you want the garbage collector to do object poisoning and | |
479 | other memory allocation checks. This is quite expensive.]) | |
480 | fi | |
481 | if test x$ac_gc_always_collect != x ; then | |
482 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
483 | [Define if you want the garbage collector to operate in maximally | |
484 | paranoid mode, validating the entire heap and collecting garbage at | |
485 | every opportunity. This is extremely expensive.]) | |
486 | fi | |
fc3df357 | 487 | if test x$ac_fold_checking != x ; then |
488 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
489 | [Define if you want fold checked that it never destructs its argument. | |
490 | This is quite expensive.]) | |
491 | fi | |
0fa54ff1 | 492 | valgrind_path_defines= |
493 | valgrind_command= | |
3f720cf7 | 494 | |
495 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
496 | dnl # an if statement. This was the source of very frustrating bugs | |
497 | dnl # in converting to autoconf 2.5x! | |
498 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
499 | ||
5391b316 | 500 | if test x$ac_valgrind_checking != x ; then |
0fa54ff1 | 501 | # It is certainly possible that there's valgrind but no valgrind.h. |
502 | # GCC relies on making annotations so we must have both. | |
a519c4d3 | 503 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) |
11e66330 | 504 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
505 | [[#include <valgrind/memcheck.h> | |
a519c4d3 | 506 | #ifndef VALGRIND_DISCARD |
507 | #error VALGRIND_DISCARD not defined | |
11e66330 | 508 | #endif]])], |
a519c4d3 | 509 | [gcc_cv_header_valgrind_memcheck_h=yes], |
510 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
511 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
8adead19 | 512 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) |
11e66330 | 513 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
514 | [[#include <memcheck.h> | |
8adead19 | 515 | #ifndef VALGRIND_DISCARD |
516 | #error VALGRIND_DISCARD not defined | |
11e66330 | 517 | #endif]])], |
518 | [gcc_cv_header_memcheck_h=yes], | |
519 | [gcc_cv_header_memcheck_h=no]) | |
8adead19 | 520 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
0fa54ff1 | 521 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
522 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a519c4d3 | 523 | if test "x$valgrind_path" = "x" \ |
524 | || (test $have_valgrind_h = no \ | |
525 | && test $gcc_cv_header_memcheck_h = no \ | |
526 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
527 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
0fa54ff1 | 528 | fi |
529 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
530 | valgrind_command="$valgrind_path -q" | |
531 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
532 | [Define if you want to run subprograms and generated programs | |
533 | through valgrind (a memory checker). This is extremely expensive.]) | |
a519c4d3 | 534 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then |
535 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
536 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
537 | fi | |
8adead19 | 538 | if test $gcc_cv_header_memcheck_h = yes; then |
539 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
540 | [Define if valgrind's memcheck.h header is installed.]) | |
541 | fi | |
0fa54ff1 | 542 | fi |
543 | AC_SUBST(valgrind_path_defines) | |
544 | AC_SUBST(valgrind_command) | |
59420fa7 | 545 | |
d5a37d75 | 546 | # Enable code coverage collection |
547 | AC_ARG_ENABLE(coverage, | |
548 | [ --enable-coverage[=LEVEL] | |
36d91445 | 549 | enable compiler's code coverage collection. |
d5a37d75 | 550 | Use to measure compiler performance and locate |
33987224 | 551 | unused parts of the compiler. With LEVEL, specify |
d5a37d75 | 552 | optimization. Values are opt, noopt, |
553 | default is noopt], | |
554 | [case "${enableval}" in | |
034b0f6e | 555 | yes|noopt) |
556 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
557 | ;; | |
558 | opt) | |
559 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
560 | ;; | |
561 | no) | |
562 | # a.k.a. --disable-coverage | |
563 | coverage_flags="" | |
564 | ;; | |
565 | *) | |
566 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
567 | ;; | |
d5a37d75 | 568 | esac], |
5328265b | 569 | [coverage_flags=""]) |
d5a37d75 | 570 | AC_SUBST(coverage_flags) |
571 | ||
86736f9e | 572 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
573 | [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
574 | [enable_gather_detailed_mem_stats=no]) | |
575 | if test x$enable_gather_detailed_mem_stats = xyes ; then | |
576 | AC_DEFINE(GATHER_STATISTICS, 1, | |
577 | [Define to enable detailed memory allocation stats gathering.]) | |
578 | fi | |
579 | ||
966842d4 | 580 | # ------------------------------- |
581 | # Miscenalleous configure options | |
582 | # ------------------------------- | |
7349ace9 | 583 | |
7ab76cec | 584 | # See if we are building gcc with C++. |
585 | AC_ARG_ENABLE(build-with-cxx, | |
586 | [ --enable-build-with-cxx build with C++ compiler instead of C compiler], | |
587 | ENABLE_BUILD_WITH_CXX=$enableval, | |
588 | ENABLE_BUILD_WITH_CXX=no) | |
589 | AC_SUBST(ENABLE_BUILD_WITH_CXX) | |
590 | ||
7349ace9 | 591 | # With stabs |
592 | AC_ARG_WITH(stabs, | |
593 | [ --with-stabs arrange to use stabs instead of host debug format], | |
594 | stabs="$with_stabs", | |
595 | stabs=no) | |
596 | ||
7349ace9 | 597 | # Determine whether or not multilibs are enabled. |
598 | AC_ARG_ENABLE(multilib, | |
599 | [ --enable-multilib enable library support for multiple ABIs], | |
600 | [], [enable_multilib=yes]) | |
601 | AC_SUBST(enable_multilib) | |
f7b90398 | 602 | |
70ac8784 | 603 | # Enable __cxa_atexit for C++. |
604 | AC_ARG_ENABLE(__cxa_atexit, | |
605 | [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
606 | [], []) | |
bc5ae993 | 607 | |
e38498a2 | 608 | # Enable C extension for decimal float if target supports it. |
609 | AC_ARG_ENABLE(decimal-float, | |
10de71e1 | 610 | [ --enable-decimal-float={no,yes,bid,dpd} |
611 | enable decimal float extension to C. Selecting 'bid' | |
612 | or 'dpd' choses which decimal floating point format | |
613 | to use], | |
e38498a2 | 614 | [ |
10de71e1 | 615 | case $enable_decimal_float in |
616 | yes | no | bid | dpd) ;; | |
617 | *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float. | |
618 | Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;; | |
619 | esac | |
620 | ], | |
621 | [ | |
622 | case $target in | |
623 | powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*) | |
f705e144 | 624 | enable_decimal_float=yes |
e38498a2 | 625 | ;; |
626 | *) | |
627 | AC_MSG_WARN(decimal float is not supported for this target, ignored) | |
628 | enable_decimal_float=no | |
629 | ;; | |
10de71e1 | 630 | esac |
631 | ]) | |
e38498a2 | 632 | |
10de71e1 | 633 | dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` |
e38498a2 | 634 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, |
635 | [Define to 1 to enable decimal float extension to C.]) | |
636 | ||
10de71e1 | 637 | # x86's use BID format instead of DPD |
638 | case x$enable_decimal_float in | |
639 | xyes) | |
640 | case $target in | |
641 | i?86*-*-linux* | x86_64*-*-linux*) | |
642 | enable_decimal_float=bid | |
643 | ;; | |
644 | *) | |
645 | enable_decimal_float=dpd | |
646 | ;; | |
647 | esac | |
648 | ;; | |
649 | xno) | |
650 | # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper | |
651 | # dependency on libdecnumber. | |
652 | enable_decimal_float=dpd | |
653 | ;; | |
654 | esac | |
655 | AC_SUBST(enable_decimal_float) | |
656 | ||
657 | bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` | |
658 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
659 | [Define to 1 to specify that we are using the BID decimal floating | |
660 | point format instead of DPD]) | |
661 | ||
9421ebb9 | 662 | # Enable C extension for fixed-point arithmetic. |
663 | AC_ARG_ENABLE(fixed-point, | |
664 | [ --enable-fixed-point enable fixed-point arithmetic extension to C], | |
665 | [ | |
666 | ], | |
667 | [ | |
668 | case $target in | |
669 | mips*-*-*) | |
6ccd4361 | 670 | case $host in |
671 | mips*-sgi-irix*) | |
672 | AC_MSG_WARN(fixed-point is not supported on IRIX, ignored) | |
673 | enable_fixed_point=no | |
674 | ;; | |
675 | *) | |
676 | enable_fixed_point=yes | |
677 | ;; | |
678 | esac | |
9421ebb9 | 679 | ;; |
680 | *) | |
681 | AC_MSG_WARN(fixed-point is not supported for this target, ignored) | |
682 | enable_fixed_point=no | |
683 | ;; | |
684 | esac | |
685 | ]) | |
686 | AC_SUBST(enable_fixed_point) | |
687 | ||
688 | fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
689 | AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
690 | [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
691 | ||
3e637c99 | 692 | # Enable threads |
693 | # Pass with no value to take the default | |
694 | # Pass with a value to specify a thread package | |
695 | AC_ARG_ENABLE(threads, | |
77eb56d4 | 696 | [ --enable-threads enable thread usage for target GCC |
697 | --enable-threads=LIB use LIB thread package for target GCC],, | |
334c8279 | 698 | [enable_threads='']) |
3e637c99 | 699 | |
c024e802 | 700 | AC_ARG_ENABLE(tls, |
701 | [ --enable-tls enable or disable generation of tls code | |
702 | overriding the assembler check for tls support], | |
703 | [ | |
704 | case $enable_tls in | |
705 | yes | no) ;; | |
706 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
707 | Valid choices are 'yes' and 'no'.]) ;; | |
708 | esac | |
709 | ], [enable_tls='']) | |
710 | ||
5c872430 | 711 | AC_ARG_ENABLE(objc-gc, |
712 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
77eb56d4 | 713 | the GNU Objective-C runtime], |
7a28a1b6 | 714 | if test x$enable_objc_gc = xno; then |
5c872430 | 715 | objc_boehm_gc='' |
716 | else | |
717 | objc_boehm_gc=1 | |
718 | fi, | |
719 | objc_boehm_gc='') | |
720 | ||
27b15aee | 721 | AC_ARG_WITH(dwarf2, |
77eb56d4 | 722 | [ --with-dwarf2 force the default debug format to be DWARF 2], |
27b15aee | 723 | dwarf2="$with_dwarf2", |
724 | dwarf2=no) | |
725 | ||
a1415e6d | 726 | AC_ARG_ENABLE(shared, |
77eb56d4 | 727 | [ --disable-shared don't provide a shared libgcc], |
10393ad5 | 728 | [ |
729 | case $enable_shared in | |
730 | yes | no) ;; | |
731 | *) | |
732 | enable_shared=no | |
733 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
734 | for pkg in $enableval; do | |
735 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
736 | enable_shared=yes | |
737 | fi | |
738 | done | |
739 | IFS="$ac_save_ifs" | |
740 | ;; | |
741 | esac | |
742 | ], [enable_shared=yes]) | |
a1415e6d | 743 | AC_SUBST(enable_shared) |
744 | ||
a99be165 | 745 | AC_ARG_WITH(build-sysroot, |
746 | [ --with-build-sysroot=sysroot | |
747 | use sysroot as the system root during the build]) | |
748 | ||
805e22b2 | 749 | AC_ARG_WITH(sysroot, |
750 | [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
751 | [ | |
752 | case ${with_sysroot} in | |
d58156a1 | 753 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; |
805e22b2 | 754 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; |
755 | esac | |
756 | ||
757 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
6ea4242f | 758 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' |
5e368ffe | 759 | |
35ab6286 | 760 | if test "x$prefix" = xNONE; then |
761 | test_prefix=/usr/local | |
762 | else | |
763 | test_prefix=$prefix | |
764 | fi | |
17acc97a | 765 | if test "x$exec_prefix" = xNONE; then |
35ab6286 | 766 | test_exec_prefix=$test_prefix |
17acc97a | 767 | else |
35ab6286 | 768 | test_exec_prefix=$exec_prefix |
17acc97a | 769 | fi |
770 | case ${TARGET_SYSTEM_ROOT} in | |
c323a7f4 | 771 | "${test_prefix}"|"${test_prefix}/"*|\ |
35ab6286 | 772 | "${test_exec_prefix}"|"${test_exec_prefix}/"*|\ |
773 | '${prefix}'|'${prefix}/'*|\ | |
c323a7f4 | 774 | '${exec_prefix}'|'${exec_prefix}/'*) |
17acc97a | 775 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" |
776 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
777 | ;; | |
778 | esac | |
805e22b2 | 779 | ], [ |
780 | TARGET_SYSTEM_ROOT= | |
d68c6656 | 781 | TARGET_SYSTEM_ROOT_DEFINE= |
805e22b2 | 782 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' |
783 | ]) | |
784 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
785 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
786 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
787 | ||
40109983 | 788 | # Build with intermodule optimisations |
40109983 | 789 | AC_ARG_ENABLE(intermodule, |
790 | [ --enable-intermodule build the compiler in one step], | |
9285d7bb | 791 | [case ${enable_intermodule} in |
792 | yes) onestep="-onestep";; | |
793 | *) onestep="";; | |
794 | esac], | |
795 | [onestep=""]) | |
40109983 | 796 | AC_SUBST(onestep) |
797 | ||
d25dc80e | 798 | ACX_PKGVERSION([GCC]) |
799 | ACX_BUGURL([http://gcc.gnu.org/bugs.html]) | |
800 | ||
c24c5e46 | 801 | # Sanity check enable_languages in case someone does not run the toplevel |
802 | # configure # script. | |
803 | AC_ARG_ENABLE(languages, | |
804 | [ --enable-languages=LIST specify which front-ends to build], | |
805 | [case ,${enable_languages}, in | |
806 | ,,|,yes,) | |
807 | # go safe -- we cannot be much sure without the toplevel | |
808 | # configure's | |
809 | # analysis of which target libs are present and usable | |
810 | enable_languages=c | |
811 | ;; | |
812 | *,all,*) | |
813 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
814 | ;; | |
815 | *,c,*) | |
816 | ;; | |
817 | *) | |
818 | enable_languages=c,${enable_languages} | |
819 | ;; | |
820 | esac], | |
821 | [enable_languages=c]) | |
822 | ||
f555bf81 | 823 | AC_ARG_WITH(multilib-list, |
824 | [ --with-multilib-list Select multilibs (SH only)], | |
825 | :, | |
826 | with_multilib_list=default) | |
827 | ||
966842d4 | 828 | # ------------------------- |
829 | # Checks for other programs | |
830 | # ------------------------- | |
6f63674e | 831 | |
0dbd1c74 | 832 | AC_PROG_MAKE_SET |
833 | ||
01dc27ef | 834 | # Find some useful tools |
835 | AC_PROG_AWK | |
e8b212b8 | 836 | # We need awk to create options.c and options.h. |
b007b385 | 837 | # Bail out if it's missing. |
838 | case ${AWK} in | |
839 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
840 | esac | |
841 | ||
f9708620 | 842 | gcc_AC_PROG_LN_S |
599a3eac | 843 | ACX_PROG_LN($LN_S) |
01dc27ef | 844 | AC_PROG_RANLIB |
72318bfa | 845 | case "${host}" in |
846 | *-*-darwin*) | |
847 | # By default, the Darwin ranlib will not treat common symbols as | |
848 | # definitions when building the archive table of contents. Other | |
849 | # ranlibs do that; pass an option to the Darwin ranlib that makes | |
850 | # it behave similarly. | |
851 | ranlib_flags="-c" | |
852 | ;; | |
853 | *) | |
854 | ranlib_flags="" | |
855 | esac | |
856 | AC_SUBST(ranlib_flags) | |
857 | ||
f9708620 | 858 | gcc_AC_PROG_INSTALL |
01dc27ef | 859 | |
8fea036f | 860 | # See if cmp has --ignore-initial. |
861 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
862 | ||
72f3368f | 863 | # See if we have the mktemp command. |
864 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
865 | ||
a1ad7483 | 866 | # See if makeinfo has been installed and is modern enough |
867 | # that we can use it. | |
c7cc973b | 868 | ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
049ccec1 | 869 | [GNU texinfo.* \([0-9][0-9.]*\)], |
69f31627 | 870 | [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
049ccec1 | 871 | if test $gcc_cv_prog_makeinfo_modern = no; then |
872 | AC_MSG_WARN([ | |
873 | *** Makeinfo is missing or too old. | |
c94ba072 | 874 | *** Info documentation will not be built.]) |
049ccec1 | 875 | BUILD_INFO= |
049ccec1 | 876 | else |
a1ad7483 | 877 | BUILD_INFO=info |
049ccec1 | 878 | fi |
a1ad7483 | 879 | AC_SUBST(BUILD_INFO) |
049ccec1 | 880 | |
0dd06be9 | 881 | # Is pod2man recent enough to regenerate manpages? |
882 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7e8ebf06 | 883 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fefb5ea6 | 884 | AC_MSG_RESULT(yes) |
a1ad7483 | 885 | GENERATED_MANPAGES=generated-manpages |
fefb5ea6 | 886 | else |
887 | AC_MSG_RESULT(no) | |
888 | GENERATED_MANPAGES= | |
889 | fi | |
a1ad7483 | 890 | AC_SUBST(GENERATED_MANPAGES) |
fefb5ea6 | 891 | |
c7cc973b | 892 | MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" |
893 | ||
345a1501 | 894 | # How about lex? |
895 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
896 | dnl LEXLIB is not useful in gcc. | |
a1ad7483 | 897 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
345a1501 | 898 | |
899 | # Bison? | |
a1ad7483 | 900 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
901 | ||
902 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
903 | # check for build == host before using them. | |
345a1501 | 904 | |
6ac26439 | 905 | # NM |
28c79bfe | 906 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
907 | && test -d ../binutils ; then | |
6ac26439 | 908 | NM='$(objdir)/../binutils/nm-new' |
909 | else | |
910 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
911 | fi | |
912 | ||
913 | # AR | |
28c79bfe | 914 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
915 | && test -d ../binutils ; then | |
6ac26439 | 916 | AR='$(objdir)/../binutils/ar' |
917 | else | |
918 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
919 | fi | |
920 | ||
921 | ||
966842d4 | 922 | # -------------------- |
923 | # Checks for C headers | |
924 | # -------------------- | |
925 | ||
2cd18f76 | 926 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
927 | # works later. *sigh* This needs to come before all header checks. | |
928 | AC_PROG_CPP_WERROR | |
929 | ||
966842d4 | 930 | AC_HEADER_STDC |
931 | AC_HEADER_TIME | |
d856c8a6 | 932 | ACX_HEADER_STRING |
966842d4 | 933 | AC_HEADER_SYS_WAIT |
e5d424c9 | 934 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
9f0cea1b | 935 | fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
966842d4 | 936 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
c6976b58 | 937 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
966842d4 | 938 | |
939 | # Check for thread headers. | |
940 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
941 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
942 | ||
943 | # These tests can't be done till we know if we have limits.h. | |
944 | gcc_AC_C_CHAR_BIT | |
fd158959 | 945 | AC_C_BIGENDIAN |
966842d4 | 946 | |
947 | # -------- | |
948 | # UNSORTED | |
949 | # -------- | |
950 | ||
966842d4 | 951 | |
45449d9f | 952 | # These libraries may be used by collect2. |
953 | # We may need a special search path to get them linked. | |
954 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
955 | [save_LIBS="$LIBS" | |
8e01c6f6 | 956 | for libs in '' -lld -lmld \ |
45449d9f | 957 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
958 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
959 | do | |
960 | LIBS="$libs" | |
961 | AC_TRY_LINK_FUNC(ldopen, | |
962 | [gcc_cv_collect2_libs="$libs"; break]) | |
963 | done | |
964 | LIBS="$save_LIBS" | |
965 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
966 | case $gcc_cv_collect2_libs in | |
967 | "none required") ;; | |
968 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
969 | esac | |
970 | AC_SUBST(COLLECT2_LIBS) | |
971 | ||
8e01c6f6 | 972 | # When building Ada code on Alpha, we need exc_resume which is usually in |
973 | # -lexc. So test for it. | |
974 | save_LIBS="$LIBS" | |
975 | LIBS= | |
976 | AC_SEARCH_LIBS(exc_resume, exc) | |
977 | GNAT_LIBEXC="$LIBS" | |
978 | LIBS="$save_LIBS" | |
979 | AC_SUBST(GNAT_LIBEXC) | |
980 | ||
96b74343 | 981 | # Some systems put ldexp and frexp in libm instead of libc; assume |
982 | # they're both in the same place. jcf-dump needs them. | |
983 | save_LIBS="$LIBS" | |
984 | LIBS= | |
985 | AC_SEARCH_LIBS(ldexp, m) | |
986 | LDEXP_LIB="$LIBS" | |
987 | LIBS="$save_LIBS" | |
988 | AC_SUBST(LDEXP_LIB) | |
989 | ||
a3477a0e | 990 | # Use <inttypes.h> only if it exists, |
991 | # doesn't clash with <sys/types.h>, and declares intmax_t. | |
992 | AC_MSG_CHECKING(for inttypes.h) | |
993 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
11e66330 | 994 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
995 | [[#include <sys/types.h> | |
996 | #include <inttypes.h>]], | |
997 | [[intmax_t i = -1;]])], | |
fd80090d | 998 | [gcc_cv_header_inttypes_h=yes], |
11e66330 | 999 | [gcc_cv_header_inttypes_h=no])]) |
a3477a0e | 1000 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
fd80090d | 1001 | if test $gcc_cv_header_inttypes_h = yes; then |
42f1312d | 1002 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1003 | [Define if you have a working <inttypes.h> header file.]) | |
fd80090d | 1004 | fi |
805483cf | 1005 | |
aab9bda6 | 1006 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1007 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
488c4206 | 1008 | |
077a3c99 | 1009 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1010 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1011 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1012 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1013 | putchar_unlocked putc_unlocked) | |
b88c06b5 | 1014 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \ |
0a7b2ad2 | 1015 | sysconf strsignal getrusage nl_langinfo \ |
077a3c99 | 1016 | gettimeofday mbstowcs wcswidth mmap mincore setlocale \ |
1017 | gcc_UNLOCKED_FUNCS) | |
4211624c | 1018 | |
b503c1a2 | 1019 | if test x$ac_cv_func_mbstowcs = xyes; then |
1020 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
11e66330 | 1021 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
b503c1a2 | 1022 | int main() |
1023 | { | |
1024 | mbstowcs(0, "", 0); | |
1025 | return 0; | |
11e66330 | 1026 | }]])], |
1027 | [gcc_cv_func_mbstowcs_works=yes], | |
1028 | [gcc_cv_func_mbstowcs_works=no], | |
1029 | [gcc_cv_func_mbstowcs_works=yes])]) | |
b503c1a2 | 1030 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1031 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1032 | [Define this macro if mbstowcs does not crash when its | |
1033 | first argument is NULL.]) | |
1034 | fi | |
1035 | fi | |
1036 | ||
478a5aa8 | 1037 | AC_CHECK_TYPE(ssize_t, int) |
1d5a5c71 | 1038 | AC_CHECK_TYPE(caddr_t, char *) |
33a62e3f | 1039 | |
9f0cea1b | 1040 | gcc_AC_FUNC_MMAP_BLACKLIST |
f1959ea2 | 1041 | |
1042 | case "${host}" in | |
8f966bdb | 1043 | *-*-*vms*) |
0d4639d6 | 1044 | # Under VMS, vfork works very differently than on Unix. The standard test |
8f966bdb | 1045 | # won't work, and it isn't easily adaptable. It makes more sense to |
1046 | # just force it. | |
1047 | ac_cv_func_vfork_works=yes | |
1048 | ;; | |
f1959ea2 | 1049 | esac |
11e66330 | 1050 | AC_FUNC_FORK |
0a0a425e | 1051 | |
7093ff41 | 1052 | AM_ICONV |
c6976b58 | 1053 | # Until we have in-tree GNU iconv: |
1054 | LIBICONV_DEP= | |
1055 | AC_SUBST(LIBICONV_DEP) | |
1056 | ||
1057 | AM_LC_MESSAGES | |
7093ff41 | 1058 | |
ac31415f | 1059 | AM_LANGINFO_CODESET |
1060 | ||
3c014a93 | 1061 | # We will need to find libiberty.h and ansidecl.h |
1062 | saved_CFLAGS="$CFLAGS" | |
1063 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
9b1f316f | 1064 | gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \ |
1065 | strsignal strstr strverscmp \ | |
1066 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ | |
7e5ef2ef | 1067 | free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[ |
673b6e5a | 1068 | #include "ansidecl.h" |
3c014a93 | 1069 | #include "system.h"]) |
7014838c | 1070 | |
07c927cb | 1071 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
673b6e5a | 1072 | #include "ansidecl.h" |
3c014a93 | 1073 | #include "system.h" |
436f5383 | 1074 | #ifdef HAVE_SYS_RESOURCE_H |
1075 | #include <sys/resource.h> | |
1076 | #endif | |
1077 | ]) | |
1078 | ||
11e66330 | 1079 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1b9d008 | 1080 | #include "ansidecl.h" |
1081 | #include "system.h" | |
1082 | #ifdef HAVE_SYS_RESOURCE_H | |
1083 | #include <sys/resource.h> | |
1084 | #endif | |
11e66330 | 1085 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
dea92435 | 1086 | [Define to `long' if <sys/resource.h> doesn't define.])]) |
c1b9d008 | 1087 | |
d71e0d30 | 1088 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1089 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1090 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1091 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
31a83412 | 1092 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1093 | #include "ansidecl.h" | |
1094 | #include "system.h" | |
1095 | #ifdef HAVE_LDFCN_H | |
d71e0d30 | 1096 | #undef FREAD |
1097 | #undef FWRITE | |
31a83412 | 1098 | #include <ldfcn.h> |
1099 | #endif | |
1100 | ]) | |
1101 | ||
c770a4cb | 1102 | gcc_AC_CHECK_DECLS(times, , ,[ |
1103 | #include "ansidecl.h" | |
1104 | #include "system.h" | |
1105 | #ifdef HAVE_SYS_TIMES_H | |
1106 | #include <sys/times.h> | |
1107 | #endif | |
1108 | ]) | |
1109 | ||
168c58e0 | 1110 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ |
1111 | #include "ansidecl.h" | |
1112 | #include "system.h" | |
1113 | #include <signal.h> | |
1114 | ]) | |
1115 | ||
c770a4cb | 1116 | # More time-related stuff. |
1117 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
11e66330 | 1118 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1119 | #include "ansidecl.h" |
1120 | #include "system.h" | |
1121 | #ifdef HAVE_SYS_TIMES_H | |
1122 | #include <sys/times.h> | |
1123 | #endif | |
11e66330 | 1124 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c770a4cb | 1125 | if test $ac_cv_struct_tms = yes; then |
1126 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1127 | [Define if <sys/times.h> defines struct tms.]) | |
1128 | fi | |
1129 | ||
1130 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1131 | # revisit after autoconf 2.50. | |
1132 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
11e66330 | 1133 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c770a4cb | 1134 | #include "ansidecl.h" |
1135 | #include "system.h" | |
11e66330 | 1136 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c770a4cb | 1137 | if test $gcc_cv_type_clock_t = yes; then |
1138 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1139 | [Define if <time.h> defines clock_t.]) | |
1140 | fi | |
1141 | ||
3c014a93 | 1142 | # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
1143 | CFLAGS="$saved_CFLAGS" | |
1144 | ||
24d1674d | 1145 | gcc_AC_INITFINI_ARRAY |
1146 | ||
a729d1c3 | 1147 | # mkdir takes a single argument on some systems. |
f9708620 | 1148 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
a729d1c3 | 1149 | |
01dc27ef | 1150 | # File extensions |
1151 | manext='.1' | |
1152 | objext='.o' | |
01dc27ef | 1153 | AC_SUBST(manext) |
1154 | AC_SUBST(objext) | |
01dc27ef | 1155 | |
805e22b2 | 1156 | # With Setjmp/Longjmp based exception handling. |
1157 | AC_ARG_ENABLE(sjlj-exceptions, | |
1158 | [ --enable-sjlj-exceptions | |
1159 | arrange to use setjmp/longjmp exception handling], | |
d4f869a6 | 1160 | [case $target in |
1161 | *-*-hpux10*) | |
1162 | if test $enableval != yes; then | |
1163 | AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1164 | enableval=yes | |
1165 | fi | |
1166 | ;; | |
1167 | esac | |
1168 | force_sjlj_exceptions=yes], | |
1169 | [case $target in | |
1170 | *-*-hpux10*) | |
1171 | force_sjlj_exceptions=yes | |
1172 | enableval=yes | |
1173 | ;; | |
1174 | *) | |
1175 | force_sjlj_exceptions=no | |
1176 | ;; | |
1177 | esac]) | |
1178 | if test $force_sjlj_exceptions = yes; then | |
1179 | sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1180 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1181 | [Define 0/1 to force the choice for exception handling model.]) | |
1182 | fi | |
805e22b2 | 1183 | |
8bdf23ae | 1184 | # For platforms with the unwind ABI which includes an unwind library, |
1185 | # libunwind, we can choose to use the system libunwind. | |
f406e07e | 1186 | # config.gcc also contains tests of with_system_libunwind. |
e70ecbc3 | 1187 | GCC_CHECK_UNWIND_GETIPINFO |
f406e07e | 1188 | |
7349ace9 | 1189 | # -------------------------------------------------------- |
1190 | # Build, host, and target specific configuration fragments | |
1191 | # -------------------------------------------------------- | |
1192 | ||
eab1a815 | 1193 | # Collect build-machine-specific information. |
1194 | . ${srcdir}/config.build | |
1195 | ||
973f8bf3 | 1196 | # Collect host-machine-specific information. |
1197 | . ${srcdir}/config.host | |
1198 | ||
eb1bd38b | 1199 | target_gtfiles= |
973f8bf3 | 1200 | |
1201 | # Collect target-machine-specific information. | |
09c6646e | 1202 | . ${srcdir}/config.gcc |
01dc27ef | 1203 | |
1204 | extra_objs="${host_extra_objs} ${extra_objs}" | |
69eb04f7 | 1205 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
01dc27ef | 1206 | |
1207 | # Default the target-machine variables that were not explicitly set. | |
bf3637a9 | 1208 | if test x"$tm_file" = x |
01dc27ef | 1209 | then tm_file=$cpu_type/$cpu_type.h; fi |
1210 | ||
2a8be21e | 1211 | if test x"$extra_headers" = x |
01dc27ef | 1212 | then extra_headers=; fi |
1213 | ||
bf3637a9 | 1214 | if test x$md_file = x |
0579e60e | 1215 | then md_file=$cpu_type/$cpu_type.md; fi |
01dc27ef | 1216 | |
bf3637a9 | 1217 | if test x$out_file = x |
01dc27ef | 1218 | then out_file=$cpu_type/$cpu_type.c; fi |
1219 | ||
bf3637a9 | 1220 | if test x"$tmake_file" = x |
01dc27ef | 1221 | then tmake_file=$cpu_type/t-$cpu_type |
1222 | fi | |
1223 | ||
27b15aee | 1224 | if test x"$dwarf2" = xyes |
b65d2e3c | 1225 | then tm_file="$tm_file tm-dwarf2.h" |
27b15aee | 1226 | fi |
1227 | ||
01dc27ef | 1228 | # Say what files are being used for the output code and MD file. |
83b8e55b | 1229 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
01dc27ef | 1230 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1231 | ||
83b8e55b | 1232 | # If any of the xm_file variables contain nonexistent files, warn |
e1688c3e | 1233 | # about them and drop them. |
1234 | ||
83b8e55b | 1235 | bx= |
1236 | for x in $build_xm_file; do | |
1237 | if test -f $srcdir/config/$x | |
1238 | then bx="$bx $x" | |
83b8e55b | 1239 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1240 | fi | |
1241 | done | |
1242 | build_xm_file="$bx" | |
1243 | ||
1244 | hx= | |
1245 | for x in $host_xm_file; do | |
1246 | if test -f $srcdir/config/$x | |
1247 | then hx="$hx $x" | |
83b8e55b | 1248 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1249 | fi | |
1250 | done | |
1251 | host_xm_file="$hx" | |
1252 | ||
1253 | tx= | |
1254 | for x in $xm_file; do | |
1255 | if test -f $srcdir/config/$x | |
1256 | then tx="$tx $x" | |
83b8e55b | 1257 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1258 | fi | |
1259 | done | |
1260 | xm_file="$tx" | |
1261 | ||
01dc27ef | 1262 | count=a |
1263 | for f in $tm_file; do | |
1264 | count=${count}x | |
1265 | done | |
bf3637a9 | 1266 | if test $count = ax; then |
01dc27ef | 1267 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1268 | else | |
1269 | echo "Using the following target machine macro files:" | |
1270 | for f in $tm_file; do | |
1271 | echo " $srcdir/config/$f" | |
1272 | done | |
1273 | fi | |
1274 | ||
805e22b2 | 1275 | if test x$need_64bit_hwint = xyes; then |
1276 | AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1277 | [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1278 | fi | |
1279 | ||
3f28a032 | 1280 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1281 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1282 | [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1283 | efficiently supported by the host hardware.]) | |
1284 | fi | |
1285 | ||
01dc27ef | 1286 | count=a |
1287 | for f in $host_xm_file; do | |
1288 | count=${count}x | |
1289 | done | |
83b8e55b | 1290 | if test $count = a; then |
1291 | : | |
1292 | elif test $count = ax; then | |
01dc27ef | 1293 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1294 | else | |
1295 | echo "Using the following host machine macro files:" | |
1296 | for f in $host_xm_file; do | |
1297 | echo " $srcdir/config/$f" | |
1298 | done | |
1299 | fi | |
b197fbcf | 1300 | echo "Using ${out_host_hook_obj} for host machine hooks." |
01dc27ef | 1301 | |
bf3637a9 | 1302 | if test "$host_xm_file" != "$build_xm_file"; then |
01dc27ef | 1303 | count=a |
1304 | for f in $build_xm_file; do | |
1305 | count=${count}x | |
1306 | done | |
83b8e55b | 1307 | if test $count = a; then |
1308 | : | |
1309 | elif test $count = ax; then | |
01dc27ef | 1310 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1311 | else | |
1312 | echo "Using the following build machine macro files:" | |
1313 | for f in $build_xm_file; do | |
1314 | echo " $srcdir/config/$f" | |
1315 | done | |
1316 | fi | |
1317 | fi | |
1318 | ||
168c58e0 | 1319 | case ${host} in |
84eba009 | 1320 | powerpc*-*-darwin*) |
168c58e0 | 1321 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], |
1322 | gcc_cv_mcontext_underscores, | |
1323 | AC_COMPILE_IFELSE([ | |
267a6571 | 1324 | #include <sys/cdefs.h> |
679f19b4 | 1325 | #include <sys/signal.h> |
168c58e0 | 1326 | #include <ucontext.h> |
1327 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
1328 | ], | |
1329 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) | |
1330 | if test $gcc_cv_mcontext_underscores = yes; then | |
1331 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1332 | [mcontext_t fields start with __]) | |
1333 | fi | |
1334 | ;; | |
1335 | esac | |
1336 | ||
d976f534 | 1337 | # --------- |
1338 | # Threading | |
1339 | # --------- | |
1340 | ||
267d993c | 1341 | # Check if a valid thread package |
334c8279 | 1342 | case ${enable_threads} in |
267d993c | 1343 | "" | no) |
1344 | # No threads | |
1345 | target_thread_file='single' | |
1346 | ;; | |
1347 | yes) | |
1348 | # default | |
1349 | target_thread_file='single' | |
1350 | ;; | |
8fde03ba | 1351 | aix | dce | gnat | irix | posix | posix95 | rtems | \ |
68c9bc25 | 1352 | single | solaris | vxworks | win32 | mipssde) |
334c8279 | 1353 | target_thread_file=${enable_threads} |
267d993c | 1354 | ;; |
1355 | *) | |
334c8279 | 1356 | echo "${enable_threads} is an unknown thread package" 1>&2 |
267d993c | 1357 | exit 1 |
1358 | ;; | |
1359 | esac | |
1360 | ||
1361 | if test x${thread_file} = x; then | |
1362 | # No thread file set by target-specific clauses in config.gcc, | |
1363 | # so use file chosen by default logic above | |
1364 | thread_file=${target_thread_file} | |
01dc27ef | 1365 | fi |
01dc27ef | 1366 | |
d976f534 | 1367 | # Make gthr-default.h if we have a thread file. |
1368 | gthread_flags= | |
1369 | if test $thread_file != single; then | |
71a71532 | 1370 | echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t |
1371 | if diff gthr-default.h-t gthr-default.h 2>/dev/null; then | |
1372 | rm -f gthr-default.h-t | |
1373 | else | |
1374 | mv -f gthr-default.h-t gthr-default.h | |
1375 | fi | |
d976f534 | 1376 | gthread_flags=-DHAVE_GTHR_DEFAULT |
1377 | fi | |
1378 | AC_SUBST(gthread_flags) | |
1379 | ||
1380 | # -------- | |
1381 | # UNSORTED | |
1382 | # -------- | |
1383 | ||
d9ab9cb9 | 1384 | use_cxa_atexit=no |
bc5ae993 | 1385 | if test x$enable___cxa_atexit = xyes || \ |
1386 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
d9ab9cb9 | 1387 | if test x$host = x$target; then |
d91ef9b0 | 1388 | case $host in |
1389 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1390 | # keyed to flag_use_cxa_atexit | |
1391 | *-*-mingw32*) | |
1392 | use_cxa_atexit=yes | |
1393 | ;; | |
1394 | *) | |
1395 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1396 | [echo "__cxa_atexit can't be enabled on this target"]) | |
55a5bb1e | 1397 | ;; |
d91ef9b0 | 1398 | esac |
d9ab9cb9 | 1399 | else |
1400 | # We can't check for __cxa_atexit when building a cross, so assume | |
1401 | # it is available | |
1402 | use_cxa_atexit=yes | |
1403 | fi | |
1404 | if test x$use_cxa_atexit = xyes; then | |
3bf418bd | 1405 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, |
d9ab9cb9 | 1406 | [Define if you want to use __cxa_atexit, rather than atexit, to |
1407 | register C++ destructors for local statics and global objects. | |
1408 | This is essential for fully standards-compliant handling of | |
1409 | destructors, but requires __cxa_atexit in libc.]) | |
1410 | fi | |
bc5ae993 | 1411 | fi |
1412 | ||
6f432b58 | 1413 | # Look for a file containing extra machine modes. |
b5ccaa7b | 1414 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1415 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
6f432b58 | 1416 | AC_SUBST(extra_modes_file) |
4dcab8b7 | 1417 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
6f432b58 | 1418 | [Define to the name of a file containing a list of extra machine modes |
1419 | for this architecture.]) | |
6f432b58 | 1420 | fi |
1421 | ||
ff05e09e | 1422 | # Convert extra_options into a form suitable for Makefile use. |
1423 | extra_opt_files= | |
1424 | for f in $extra_options; do | |
1425 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1426 | done | |
1427 | AC_SUBST(extra_opt_files) | |
1428 | ||
764fc592 | 1429 | # auto-host.h is the file containing items generated by autoconf and is |
0dbd1c74 | 1430 | # the first file included by config.h. |
805e22b2 | 1431 | # If host=build, it is correct to have bconfig include auto-host.h |
58b16c1a | 1432 | # as well. If host!=build, we are in error and need to do more |
1433 | # work to find out the build config parameters. | |
bf3637a9 | 1434 | if test x$host = x$build |
58b16c1a | 1435 | then |
d826737c | 1436 | build_auto=auto-host.h |
764fc592 | 1437 | else |
1438 | # We create a subdir, then run autoconf in the subdir. | |
1439 | # To prevent recursion we set host and build for the new | |
1440 | # invocation of configure to the build for this invocation | |
1441 | # of configure. | |
1442 | tempdir=build.$$ | |
1443 | rm -rf $tempdir | |
1444 | mkdir $tempdir | |
1445 | cd $tempdir | |
1446 | case ${srcdir} in | |
e868f582 | 1447 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
764fc592 | 1448 | *) realsrcdir=../${srcdir};; |
1449 | esac | |
fc5104b7 | 1450 | saved_CFLAGS="${CFLAGS}" |
1451 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
9841cd80 | 1452 | LDFLAGS="${LDFLAGS_FOR_BUILD}" \ |
fc5104b7 | 1453 | ${realsrcdir}/configure \ |
1f3fcf32 | 1454 | --enable-languages=${enable_languages-all} \ |
ab3470ec | 1455 | --target=$target_alias --host=$build_alias --build=$build_alias |
fc5104b7 | 1456 | CFLAGS="${saved_CFLAGS}" |
764fc592 | 1457 | |
1458 | # We just finished tests for the build machine, so rename | |
1459 | # the file auto-build.h in the gcc directory. | |
1460 | mv auto-host.h ../auto-build.h | |
1461 | cd .. | |
1462 | rm -rf $tempdir | |
d826737c | 1463 | build_auto=auto-build.h |
58b16c1a | 1464 | fi |
2b59cb05 | 1465 | AC_SUBST(build_subdir) |
58b16c1a | 1466 | |
d826737c | 1467 | tm_file="${tm_file} defaults.h" |
805e22b2 | 1468 | tm_p_file="${tm_p_file} tm-preds.h" |
1469 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1470 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
4b0e3ddb | 1471 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
18320123 | 1472 | # put this back in temporarily. |
fcd42b1e | 1473 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
4a7d7a8b | 1474 | |
7349ace9 | 1475 | # -------- |
1476 | # UNSORTED | |
1477 | # -------- | |
1478 | ||
14ac9144 | 1479 | changequote(,)dnl |
9371935c | 1480 | # Compile in configure arguments. |
6e11eb2c | 1481 | if test -f configargs.h ; then |
9371935c | 1482 | # Being re-configured. |
8bffa377 | 1483 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
9371935c | 1484 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" |
1485 | else | |
1486 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1487 | fi | |
5df533c9 | 1488 | |
1489 | # Double all backslashes and backslash all quotes to turn | |
1490 | # gcc_config_arguments into a C string. | |
1491 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1492 | $gcc_config_arguments | |
1493 | EOF | |
1494 | gcc_config_arguments_str=`cat conftest.out` | |
1495 | rm -f conftest.out | |
1496 | ||
9371935c | 1497 | cat > configargs.h <<EOF |
1498 | /* Generated automatically. */ | |
5df533c9 | 1499 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
6d72c630 | 1500 | static const char thread_model[] = "$thread_file"; |
7dd97ab6 | 1501 | |
1502 | static const struct { | |
1503 | const char *name, *value; | |
1504 | } configure_default_options[] = $configure_default_options; | |
9371935c | 1505 | EOF |
bf3637a9 | 1506 | changequote([,])dnl |
01dc27ef | 1507 | |
e8ad34e4 | 1508 | changequote(,)dnl |
6ac2286b | 1509 | gcc_BASEVER=`cat $srcdir/BASE-VER` |
1510 | gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` | |
1511 | gcc_DATESTAMP=`cat $srcdir/DATESTAMP` | |
e8ad34e4 | 1512 | if test -f $srcdir/REVISION ; then |
6ac2286b | 1513 | gcc_REVISION=`cat $srcdir/REVISION` |
e8ad34e4 | 1514 | else |
1515 | gcc_REVISION="" | |
1516 | fi | |
1517 | cat > plugin-version.h <<EOF | |
1518 | #include "configargs.h" | |
1519 | ||
1520 | static char basever[] = "$gcc_BASEVER"; | |
1521 | static char datestamp[] = "$gcc_DATESTAMP"; | |
1522 | static char devphase[] = "$gcc_DEVPHASE"; | |
1523 | static char revision[] = "$gcc_REVISION"; | |
1524 | ||
1525 | /* FIXME plugins: We should make the version information more precise. | |
1526 | One way to do is to add a checksum. */ | |
1527 | ||
1528 | static struct plugin_gcc_version gcc_version = {basever, datestamp, | |
1529 | devphase, revision, | |
1530 | configuration_arguments}; | |
1531 | EOF | |
1532 | changequote([,])dnl | |
1533 | ||
be2828ce | 1534 | # Internationalization |
c6976b58 | 1535 | ZW_GNU_GETTEXT_SISTER_DIR |
c5ab9ed2 | 1536 | |
c6976b58 | 1537 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1538 | # -liconv on the link line twice. | |
1539 | case "$LIBINTL" in *$LIBICONV*) | |
1540 | LIBICONV= ;; | |
1541 | esac | |
be2828ce | 1542 | |
197f58fa | 1543 | AC_ARG_ENABLE(secureplt, |
1544 | [ --enable-secureplt enable -msecure-plt by default for PowerPC], | |
1545 | [], []) | |
1546 | ||
144c3e90 | 1547 | AC_ARG_ENABLE(cld, |
1548 | [ --enable-cld enable -mcld by default for 32bit x86], [], | |
1549 | [enable_cld=no]) | |
1550 | ||
778a2833 | 1551 | # Windows32 Registry support for specifying GCC installation paths. |
1552 | AC_ARG_ENABLE(win32-registry, | |
1553 | [ --disable-win32-registry | |
77eb56d4 | 1554 | disable lookup of installation paths in the |
1555 | Registry on Windows hosts | |
1556 | --enable-win32-registry enable registry lookup (default) | |
778a2833 | 1557 | --enable-win32-registry=KEY |
77eb56d4 | 1558 | use KEY instead of GCC version as the last portion |
1559 | of the registry key],,) | |
1af67e62 | 1560 | |
45449d9f | 1561 | case $host_os in |
1af67e62 | 1562 | win32 | pe | cygwin* | mingw32* | uwin*) |
1563 | if test "x$enable_win32_registry" != xno; then | |
1564 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1565 | fi | |
778a2833 | 1566 | |
1af67e62 | 1567 | if test "x$enable_win32_registry" != xno; then |
1568 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1569 | [Define to 1 if installation paths should be looked up in the Windows | |
1570 | Registry. Ignored on non-Windows hosts.]) | |
1571 | ||
1572 | if test "x$enable_win32_registry" != xyes \ | |
1573 | && test "x$enable_win32_registry" != x; then | |
1574 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1575 | [Define to be the last component of the Windows registry key under which | |
1576 | to look for installation paths. The full key used will be | |
1577 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1578 | The default is the GCC version number.]) | |
1579 | fi | |
1580 | fi | |
778a2833 | 1581 | ;; |
1582 | esac | |
1583 | ||
cab2aaca | 1584 | # Get an absolute path to the GCC top-level source directory |
3354d061 | 1585 | holddir=`${PWDCMD-pwd}` |
cab2aaca | 1586 | cd $srcdir |
3354d061 | 1587 | topdir=`${PWDCMD-pwd}` |
cab2aaca | 1588 | cd $holddir |
1589 | ||
0045e563 | 1590 | # Conditionalize the makefile for this host machine. |
a455468e | 1591 | xmake_file= |
2e222ce5 | 1592 | for f in ${host_xmake_file} |
5a92ba2a | 1593 | do |
bf3637a9 | 1594 | if test -f ${srcdir}/config/$f |
5a92ba2a | 1595 | then |
a455468e | 1596 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
5a92ba2a | 1597 | fi |
1598 | done | |
01dc27ef | 1599 | |
0045e563 | 1600 | # Conditionalize the makefile for this target machine. |
a455468e | 1601 | tmake_file_= |
2e222ce5 | 1602 | for f in ${tmake_file} |
5a92ba2a | 1603 | do |
bf3637a9 | 1604 | if test -f ${srcdir}/config/$f |
5a92ba2a | 1605 | then |
a455468e | 1606 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
5a92ba2a | 1607 | fi |
1608 | done | |
a455468e | 1609 | tmake_file="${tmake_file_}" |
4fc83d8e | 1610 | |
0045e563 | 1611 | out_object_file=`basename $out_file .c`.o |
4fc83d8e | 1612 | |
ff05e09e | 1613 | tm_file_list="options.h" |
1614 | tm_include_list="options.h" | |
0045e563 | 1615 | for f in $tm_file; do |
de5102fe | 1616 | case $f in |
504cf784 | 1617 | ./* ) |
1618 | f=`echo $f | sed 's/^..//'` | |
1619 | tm_file_list="${tm_file_list} $f" | |
1620 | tm_include_list="${tm_include_list} $f" | |
1621 | ;; | |
673b6e5a | 1622 | defaults.h ) |
4dcab8b7 | 1623 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
1624 | tm_include_list="${tm_include_list} $f" | |
1625 | ;; | |
1626 | * ) | |
1627 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1628 | tm_include_list="${tm_include_list} config/$f" | |
1629 | ;; | |
de5102fe | 1630 | esac |
0045e563 | 1631 | done |
01dc27ef | 1632 | |
83b8e55b | 1633 | tm_p_file_list= |
4dcab8b7 | 1634 | tm_p_include_list= |
83b8e55b | 1635 | for f in $tm_p_file; do |
805e22b2 | 1636 | case $f in |
1637 | tm-preds.h ) | |
4dcab8b7 | 1638 | tm_p_file_list="${tm_p_file_list} $f" |
1639 | tm_p_include_list="${tm_p_include_list} $f" | |
1640 | ;; | |
1641 | * ) | |
1642 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1643 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1644 | esac | |
1645 | done | |
1646 | ||
1647 | xm_file_list= | |
1648 | xm_include_list= | |
1649 | for f in $xm_file; do | |
1650 | case $f in | |
1651 | ansidecl.h ) | |
1652 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1653 | xm_include_list="${xm_include_list} $f" | |
1654 | ;; | |
1655 | auto-host.h ) | |
1656 | xm_file_list="${xm_file_list} $f" | |
1657 | xm_include_list="${xm_include_list} $f" | |
1658 | ;; | |
1659 | * ) | |
1660 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1661 | xm_include_list="${xm_include_list} config/$f" | |
1662 | ;; | |
805e22b2 | 1663 | esac |
83b8e55b | 1664 | done |
1665 | ||
0045e563 | 1666 | host_xm_file_list= |
4dcab8b7 | 1667 | host_xm_include_list= |
0045e563 | 1668 | for f in $host_xm_file; do |
de5102fe | 1669 | case $f in |
673b6e5a | 1670 | ansidecl.h ) |
4dcab8b7 | 1671 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
1672 | host_xm_include_list="${host_xm_include_list} $f" | |
1673 | ;; | |
1f3233d1 | 1674 | auto-host.h ) |
4dcab8b7 | 1675 | host_xm_file_list="${host_xm_file_list} $f" |
1676 | host_xm_include_list="${host_xm_include_list} $f" | |
1677 | ;; | |
1678 | * ) | |
1679 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1680 | host_xm_include_list="${host_xm_include_list} config/$f" | |
1681 | ;; | |
de5102fe | 1682 | esac |
0045e563 | 1683 | done |
1684 | ||
1685 | build_xm_file_list= | |
1686 | for f in $build_xm_file; do | |
de5102fe | 1687 | case $f in |
673b6e5a | 1688 | ansidecl.h ) |
4dcab8b7 | 1689 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
1690 | build_xm_include_list="${build_xm_include_list} $f" | |
1691 | ;; | |
1f3233d1 | 1692 | auto-build.h | auto-host.h ) |
4dcab8b7 | 1693 | build_xm_file_list="${build_xm_file_list} $f" |
1694 | build_xm_include_list="${build_xm_include_list} $f" | |
1695 | ;; | |
1696 | * ) | |
1697 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1698 | build_xm_include_list="${build_xm_include_list} config/$f" | |
1699 | ;; | |
de5102fe | 1700 | esac |
0045e563 | 1701 | done |
01dc27ef | 1702 | |
29d774d0 | 1703 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a |
1704 | # cross-compiler which does not use the native headers and libraries. | |
0fc07c25 | 1705 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. |
1706 | CROSS= AC_SUBST(CROSS) | |
1707 | ALL=all.internal AC_SUBST(ALL) | |
1708 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
5e368ffe | 1709 | |
1710 | if test "x$with_build_sysroot" != x; then | |
6ea4242f | 1711 | build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' |
5e368ffe | 1712 | else |
1713 | # This value is used, even on a native system, because | |
1714 | # CROSS_SYSTEM_HEADER_DIR is just | |
1715 | # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR). | |
1716 | build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)' | |
1717 | fi | |
1718 | ||
bf3637a9 | 1719 | if test x$host != x$target |
0045e563 | 1720 | then |
29d774d0 | 1721 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" |
0fc07c25 | 1722 | ALL=all.cross |
a99be165 | 1723 | SYSTEM_HEADER_DIR=$build_system_header_dir |
4ae4e5e8 | 1724 | case "$host","$target" in |
62cb8057 | 1725 | # Darwin crosses can use the host system's libraries and headers, |
1726 | # because of the fat library support. Of course, it must be the | |
1727 | # same version of Darwin on both sides. Allow the user to | |
1728 | # just say --target=foo-darwin without a version number to mean | |
1729 | # "the version on this system". | |
1730 | *-*-darwin*,*-*-darwin*) | |
1731 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1732 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1733 | if test $hostos = $targetos -o $targetos = darwin ; then | |
1734 | CROSS= | |
1735 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1736 | with_headers=yes | |
1737 | fi | |
1738 | ;; | |
1739 | ||
4ae4e5e8 | 1740 | i?86-*-*,x86_64-*-* \ |
1741 | | powerpc*-*-*,powerpc64*-*-*) | |
1742 | CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1743 | esac | |
e81222a4 | 1744 | elif test "x$TARGET_SYSTEM_ROOT" != x; then |
5e368ffe | 1745 | SYSTEM_HEADER_DIR=$build_system_header_dir |
0045e563 | 1746 | fi |
01dc27ef | 1747 | |
81aabcf8 | 1748 | # If this is a cross-compiler that does not |
1749 | # have its own set of headers then define | |
1750 | # inhibit_libc | |
1751 | ||
3caddd4e | 1752 | # If this is using newlib, without having the headers available now, |
1753 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
c872ef71 | 1754 | # This prevents libgcc2 from containing any code which requires libc |
1755 | # support. | |
58a8c75f | 1756 | : ${inhibit_libc=false} |
3caddd4e | 1757 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
1758 | test x$with_newlib = xyes ; } && | |
9ad4b12b | 1759 | { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then |
a99be165 | 1760 | inhibit_libc=true |
81aabcf8 | 1761 | fi |
1762 | AC_SUBST(inhibit_libc) | |
1763 | ||
0fc07c25 | 1764 | # When building gcc with a cross-compiler, we need to adjust things so |
1765 | # that the generator programs are still built with the native compiler. | |
f2397fc4 | 1766 | # Also, we cannot run fixincludes. |
0fc07c25 | 1767 | |
1768 | # These are the normal (build=host) settings: | |
58933515 | 1769 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
805e22b2 | 1770 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
9841cd80 | 1771 | BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) |
0fc07c25 | 1772 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
4c05f6ec | 1773 | |
c19ee476 | 1774 | # And these apply if build != host, or we are generating coverage data |
1775 | if test x$build != x$host || test "x$coverage_flags" != x | |
0045e563 | 1776 | then |
4a867005 | 1777 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
9841cd80 | 1778 | BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' |
0045e563 | 1779 | fi |
01dc27ef | 1780 | |
33fd845b | 1781 | # Expand extra_headers to include complete path. |
1782 | # This substitutes for lots of t-* files. | |
1783 | extra_headers_list= | |
a78cd2c1 | 1784 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
1785 | for file in ${extra_headers} ; do | |
1786 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1787 | done | |
33fd845b | 1788 | |
50388ca3 | 1789 | # If use_gcc_tgmath is set, append ginclude/tgmath.h. |
1790 | if test x"$use_gcc_tgmath" = xyes | |
1791 | then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
1792 | fi | |
1793 | ||
e08c7853 | 1794 | # Define collect2 in Makefile. |
1795 | case $host_can_use_collect2 in | |
1796 | no) collect2= ;; | |
1797 | *) collect2='collect2$(exeext)' ;; | |
1798 | esac | |
1799 | AC_SUBST([collect2]) | |
1800 | ||
0045e563 | 1801 | # Add a definition of USE_COLLECT2 if system wants one. |
7349ace9 | 1802 | case $use_collect2 in |
1803 | no) use_collect2= ;; | |
1804 | "") ;; | |
1805 | *) | |
1806 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1807 | xm_defines="${xm_defines} USE_COLLECT2" | |
e08c7853 | 1808 | case $host_can_use_collect2 in |
1809 | no) | |
1810 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1811 | ;; | |
1812 | esac | |
7349ace9 | 1813 | ;; |
1814 | esac | |
0045e563 | 1815 | |
d8a2ca58 | 1816 | # --------------------------- |
1817 | # Assembler & linker features | |
1818 | # --------------------------- | |
1819 | ||
794723c1 | 1820 | # During stage 2, ld is actually gcc/collect-ld, which is a small script to |
1821 | # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
1822 | # However when ld-new is first executed from the build tree, libtool will | |
1823 | # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
1824 | # to the build tree. While doing this we need to use the previous-stage | |
1825 | # linker, or we have an infinite loop. The presence of a shell script as | |
1826 | # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
1827 | # the gcc/collect-ld script. So we need to know how libtool works, or | |
1828 | # exec-tool will fail. | |
1829 | ||
1830 | m4_defun([_LT_CONFIG_COMMANDS], []) | |
1831 | AC_PROG_LIBTOOL | |
1832 | AC_SUBST(objdir) | |
1833 | AC_SUBST(enable_fast_install) | |
1834 | ||
d2aaa43f | 1835 | # Identify the assembler which will work hand-in-glove with the newly |
1836 | # built GCC, so that we can examine its features. This is the assembler | |
1837 | # which will be driven by the driver program. | |
1838 | # | |
1839 | # If build != host, and we aren't building gas in-tree, we identify a | |
1840 | # build->target assembler and hope that it will have the same features | |
1841 | # as the host->target assembler we'll be using. | |
398f3874 | 1842 | gcc_cv_gas_major_version= |
1843 | gcc_cv_gas_minor_version= | |
0a4f4d70 | 1844 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
c47832b1 | 1845 | |
1846 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
1847 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
f8b7dbdb | 1848 | if test -x "$DEFAULT_ASSEMBLER"; then |
1849 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
7349ace9 | 1850 | elif test -f $gcc_cv_as_gas_srcdir/configure.in \ |
58220290 | 1851 | && test -f ../gas/Makefile \ |
1852 | && test x$build = x$host; then | |
c47832b1 | 1853 | gcc_cv_as=../gas/as-new$build_exeext |
1854 | elif test -x as$build_exeext; then | |
1855 | # Build using assembler in the current directory. | |
1856 | gcc_cv_as=./as$build_exeext | |
1857 | elif test -x $AS_FOR_TARGET; then | |
1858 | gcc_cv_as="$AS_FOR_TARGET" | |
1859 | else | |
1860 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
1861 | fi]) | |
1862 | ||
1863 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
1864 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
bdbe7091 | 1865 | case "$ORIGINAL_AS_FOR_TARGET" in |
1866 | ./as | ./as$build_exeext) ;; | |
1867 | *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
1868 | esac | |
c47832b1 | 1869 | |
1870 | AC_MSG_CHECKING(what assembler to use) | |
1871 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
58220290 | 1872 | # Single tree build which includes gas. We want to prefer it |
1873 | # over whatever linker top-level may have detected, since | |
1874 | # we'll use what we're building after installation anyway. | |
c47832b1 | 1875 | AC_MSG_RESULT(newly built gas) |
667fe30b | 1876 | in_tree_gas=yes |
1877 | _gcc_COMPUTE_GAS_VERSION | |
0dac358a | 1878 | in_tree_gas_is_elf=no |
1879 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1880 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
1881 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1882 | then | |
1883 | in_tree_gas_is_elf=yes | |
1884 | fi | |
c47832b1 | 1885 | else |
1886 | AC_MSG_RESULT($gcc_cv_as) | |
1887 | in_tree_gas=no | |
398f3874 | 1888 | fi |
1889 | ||
d2aaa43f | 1890 | # Identify the linker which will work hand-in-glove with the newly |
1891 | # built GCC, so that we can examine its features. This is the linker | |
1892 | # which will be driven by the driver program. | |
1893 | # | |
1894 | # If build != host, and we aren't building gas in-tree, we identify a | |
1895 | # build->target linker and hope that it will have the same features | |
1896 | # as the host->target linker we'll be using. | |
0d6378a9 | 1897 | gcc_cv_gld_major_version= |
1898 | gcc_cv_gld_minor_version= | |
1899 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1900 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
c47832b1 | 1901 | |
1902 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
0d6378a9 | 1903 | if test -x "$DEFAULT_LINKER"; then |
1904 | gcc_cv_ld="$DEFAULT_LINKER" | |
7349ace9 | 1905 | elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ |
58220290 | 1906 | && test -f ../ld/Makefile \ |
1907 | && test x$build = x$host; then | |
c47832b1 | 1908 | gcc_cv_ld=../ld/ld-new$build_exeext |
1909 | elif test -x collect-ld$build_exeext; then | |
1910 | # Build using linker in the current directory. | |
1911 | gcc_cv_ld=./collect-ld$build_exeext | |
1912 | elif test -x $LD_FOR_TARGET; then | |
1913 | gcc_cv_ld="$LD_FOR_TARGET" | |
1914 | else | |
1915 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
1916 | fi]) | |
1917 | ||
1918 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld | |
1919 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
bdbe7091 | 1920 | case "$ORIGINAL_LD_FOR_TARGET" in |
1921 | ./collect-ld | ./collect-ld$build_exeext) ;; | |
1922 | *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
1923 | esac | |
c47832b1 | 1924 | |
1925 | AC_MSG_CHECKING(what linker to use) | |
1926 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then | |
58220290 | 1927 | # Single tree build which includes ld. We want to prefer it |
1928 | # over whatever linker top-level may have detected, since | |
1929 | # we'll use what we're building after installation anyway. | |
c47832b1 | 1930 | AC_MSG_RESULT(newly built ld) |
7349ace9 | 1931 | in_tree_ld=yes |
0dac358a | 1932 | in_tree_ld_is_elf=no |
1933 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
092f763e | 1934 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
1935 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
0dac358a | 1936 | in_tree_ld_is_elf=yes |
1937 | fi | |
0d6378a9 | 1938 | 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 |
1939 | do | |
1940 | changequote(,)dnl | |
78dde42d | 1941 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` |
0d6378a9 | 1942 | if test x$gcc_cv_gld_version != x; then |
1943 | break | |
1944 | fi | |
1945 | done | |
0d6378a9 | 1946 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
1947 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1948 | changequote([,])dnl | |
c47832b1 | 1949 | else |
1950 | AC_MSG_RESULT($gcc_cv_ld) | |
1951 | in_tree_ld=no | |
0d6378a9 | 1952 | fi |
1953 | ||
398f3874 | 1954 | # Figure out what nm we will be using. |
37c5bbf8 | 1955 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
c47832b1 | 1956 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
f32e3360 | 1957 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
13648950 | 1958 | && test -f ../binutils/Makefile \ |
1959 | && test x$build = x$host; then | |
f32e3360 | 1960 | gcc_cv_nm=../binutils/nm-new$build_exeext |
1961 | elif test -x nm$build_exeext; then | |
68c3d71c | 1962 | gcc_cv_nm=./nm$build_exeext |
c47832b1 | 1963 | elif test -x $NM_FOR_TARGET; then |
1964 | gcc_cv_nm="$NM_FOR_TARGET" | |
1965 | else | |
1966 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
1967 | fi]) | |
f32e3360 | 1968 | |
f32e3360 | 1969 | AC_MSG_CHECKING(what nm to use) |
c47832b1 | 1970 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
1971 | # Single tree build which includes binutils. | |
1972 | AC_MSG_RESULT(newly built nm) | |
1973 | in_tree_nm=yes | |
1974 | else | |
1975 | AC_MSG_RESULT($gcc_cv_nm) | |
1976 | in_tree_nm=no | |
1977 | fi | |
1978 | ||
1979 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
1980 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
bdbe7091 | 1981 | case "$ORIGINAL_NM_FOR_TARGET" in |
1982 | ./nm | ./nm$build_exeext) ;; | |
1983 | *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
1984 | esac | |
1985 | ||
398f3874 | 1986 | |
74e387fc | 1987 | # Figure out what objdump we will be using. |
c47832b1 | 1988 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
ae74ffb7 | 1989 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
13648950 | 1990 | && test -f ../binutils/Makefile \ |
1991 | && test x$build = x$host; then | |
37c5bbf8 | 1992 | # Single tree build which includes binutils. |
f32e3360 | 1993 | gcc_cv_objdump=../binutils/objdump$build_exeext |
ae74ffb7 | 1994 | elif test -x objdump$build_exeext; then |
1995 | gcc_cv_objdump=./objdump$build_exeext | |
c47832b1 | 1996 | elif test -x $OBJDUMP_FOR_TARGET; then |
1997 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" | |
1998 | else | |
1999 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
2000 | fi]) | |
ae74ffb7 | 2001 | |
ae74ffb7 | 2002 | AC_MSG_CHECKING(what objdump to use) |
c47832b1 | 2003 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
2004 | # Single tree build which includes binutils. | |
2005 | AC_MSG_RESULT(newly built objdump) | |
2006 | elif test x$gcc_cv_objdump = x; then | |
2007 | AC_MSG_RESULT(not found) | |
2008 | else | |
2009 | AC_MSG_RESULT($gcc_cv_objdump) | |
2010 | fi | |
74e387fc | 2011 | |
8eac5d17 | 2012 | # Figure out what readelf we will be using. |
2013 | AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
2014 | if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
2015 | && test -f ../binutils/Makefile \ | |
2016 | && test x$build = x$host; then | |
2017 | # Single tree build which includes binutils. | |
2018 | gcc_cv_readelf=../binutils/readelf$build_exeext | |
2019 | elif test -x readelf$build_exeext; then | |
2020 | gcc_cv_readelf=./readelf$build_exeext | |
2021 | else | |
2022 | AC_PATH_PROG(gcc_cv_readelf, readelf) | |
2023 | fi]) | |
2024 | ||
2025 | AC_MSG_CHECKING(what readelf to use) | |
2026 | if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2027 | # Single tree build which includes binutils. | |
2028 | AC_MSG_RESULT(newly built readelf) | |
2029 | elif test x$gcc_cv_readelf = x; then | |
2030 | AC_MSG_RESULT(not found) | |
2031 | else | |
2032 | AC_MSG_RESULT($gcc_cv_readelf) | |
2033 | fi | |
2034 | ||
398f3874 | 2035 | # Figure out what assembler alignment features are present. |
6d6c1801 | 2036 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
2037 | [2,6,0],, | |
2038 | [.balign 4 | |
2039 | .p2align 2],, | |
2040 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2041 | [Define if your assembler supports .balign and .p2align.])]) | |
2042 | ||
2043 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2044 | [2,8,0],, | |
2045 | [.p2align 4,,7],, | |
2046 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2047 | [Define if your assembler supports specifying the maximum number | |
2048 | of bytes to skip when using the GAS .p2align command.])]) | |
2049 | ||
4be92808 | 2050 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, |
2051 | [2,8,0],, | |
2052 | [.literal16],, | |
2053 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2054 | [Define if your assembler supports .literal16.])]) | |
2055 | ||
6d6c1801 | 2056 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, |
2057 | [elf,2,9,0],, | |
2058 | [conftest_label1: .word 0 | |
b6d28b19 | 2059 | .subsection -1 |
2060 | conftest_label2: .word 0 | |
6d6c1801 | 2061 | .previous], |
2062 | [if test x$gcc_cv_nm != x; then | |
2063 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2064 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2065 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2066 | then : | |
2067 | else gcc_cv_as_subsection_m1=yes | |
2068 | fi | |
2069 | rm -f conftest.nm1 conftest.nm2 | |
2070 | fi], | |
2071 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2072 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2073 | emitting at the beginning of your section.])]) | |
2074 | ||
2075 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2076 | [2,2,0],, | |
2077 | [ .weak foobar],, | |
2078 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2079 | ||
f4a30bd7 | 2080 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2081 | [2,17,0],, | |
2082 | [ .weakref foobar, barfnot],, | |
2083 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2084 | ||
2455c36b | 2085 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2086 | [2,15,91],, | |
2087 | [ .SPACE $TEXT$ | |
2088 | .NSUBSPA $CODE$,COMDAT],, | |
2089 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2090 | ||
6d6c1801 | 2091 | # .hidden needs to be supported in both the assembler and the linker, |
2092 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2093 | # This is irritatingly difficult to feature test for; we have to check the | |
2094 | # date string after the version number. If we've got an in-tree | |
2095 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2096 | # to be safe. | |
2097 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2098 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2099 | [elf,2,13,0],, | |
2100 | [ .hidden foobar | |
2101 | foobar:]) | |
2102 | ||
2103 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2104 | [if test $in_tree_ld = yes ; then | |
2105 | gcc_cv_ld_hidden=no | |
2106 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2107 | && test $in_tree_ld_is_elf = yes; then | |
2108 | gcc_cv_ld_hidden=yes | |
2109 | fi | |
2110 | else | |
8177d9d5 | 2111 | changequote(,)dnl |
6d6c1801 | 2112 | gcc_cv_ld_hidden=yes |
43557a8f | 2113 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` |
6d6c1801 | 2114 | if echo "$ld_ver" | grep GNU > /dev/null; then |
6d6c1801 | 2115 | ld_vers=`echo $ld_ver | sed -n \ |
c7871c82 | 2116 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
6d6c1801 | 2117 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
2593b9be | 2118 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2119 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2120 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
6d6c1801 | 2121 | if test 0"$ld_date" -lt 20020404; then |
2122 | if test -n "$ld_date"; then | |
2123 | # If there was date string, but was earlier than 2002-04-04, fail | |
2124 | gcc_cv_ld_hidden=no | |
2125 | elif test -z "$ld_vers"; then | |
2126 | # If there was no date string nor ld version number, something is wrong | |
2127 | gcc_cv_ld_hidden=no | |
2128 | else | |
6d6c1801 | 2129 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2130 | if test "$ld_vers_major" -lt 2; then | |
2131 | gcc_cv_ld_hidden=no | |
2132 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2133 | gcc_cv_ld_hidden="no" | |
2134 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2135 | gcc_cv_ld_hidden=no | |
a985a485 | 2136 | fi |
6d6c1801 | 2137 | fi |
61ab9ea9 | 2138 | fi |
6d6c1801 | 2139 | else |
6f8f5d6c | 2140 | case "${target}" in |
ecb7c90c | 2141 | hppa64*-*-hpux* | ia64*-*-hpux*) |
6f8f5d6c | 2142 | gcc_cv_ld_hidden=yes |
2143 | ;; | |
8177d9d5 | 2144 | *-*-solaris2.9* | *-*-solaris2.1[0-9]*) |
2145 | gcc_cv_ld_hidden=yes | |
2146 | ;; | |
6f8f5d6c | 2147 | *) |
2148 | gcc_cv_ld_hidden=no | |
2149 | ;; | |
2150 | esac | |
6d6c1801 | 2151 | fi |
8177d9d5 | 2152 | changequote([,])dnl |
6d6c1801 | 2153 | fi]) |
2154 | libgcc_visibility=no | |
e8c2499b | 2155 | AC_SUBST(libgcc_visibility) |
fcd42b1e | 2156 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0b4b4686 | 2157 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
6d6c1801 | 2158 | libgcc_visibility=yes |
2159 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2160 | [Define if your assembler and linker support .hidden.]) | |
2161 | fi | |
5be729c9 | 2162 | |
e94830ac | 2163 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2164 | gcc_cv_ld_ro_rw_mix=unknown | |
2165 | if test $in_tree_ld = yes ; then | |
2166 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2167 | && test $in_tree_ld_is_elf = yes; then | |
2168 | gcc_cv_ld_ro_rw_mix=read-write | |
2169 | fi | |
2170 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2171 | echo '.section myfoosect, "a"' > conftest1.s | |
2172 | echo '.section myfoosect, "aw"' > conftest2.s | |
2173 | echo '.byte 1' >> conftest2.s | |
2174 | echo '.section myfoosect, "a"' > conftest3.s | |
2175 | echo '.byte 0' >> conftest3.s | |
2176 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2177 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2178 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2179 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2180 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2181 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2182 | | sed -e '/myfoosect/!d' -e N` | |
2183 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2184 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2185 | gcc_cv_ld_ro_rw_mix=read-only | |
2186 | else | |
2187 | gcc_cv_ld_ro_rw_mix=read-write | |
2188 | fi | |
2189 | fi | |
2190 | fi | |
2191 | changequote(,)dnl | |
2192 | rm -f conftest.* conftest[123].* | |
2193 | changequote([,])dnl | |
2194 | fi | |
2195 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2196 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2197 | [Define if your linker links a mix of read-only | |
2198 | and read-write sections into a read-write section.]) | |
2199 | fi | |
2200 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2201 | ||
6d6c1801 | 2202 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2203 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2204 | [elf,2,11,0],, | |
2205 | [ .data | |
37a2e188 | 2206 | .uleb128 L2 - L1 |
2207 | L1: | |
2208 | .uleb128 1280 | |
2209 | .sleb128 -1010 | |
6d6c1801 | 2210 | L2:], |
2211 | [# GAS versions before 2.11 do not support uleb128, | |
2212 | # despite appearing to. | |
2213 | # ??? There exists an elf-specific test that will crash | |
2214 | # the assembler. Perhaps it's better to figure out whether | |
2215 | # arbitrary sections are supported and try the test. | |
43557a8f | 2216 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
6d6c1801 | 2217 | if echo "$as_ver" | grep GNU > /dev/null; then |
088fd851 | 2218 | changequote(,)dnl |
b29dc614 | 2219 | as_vers=`echo $as_ver | sed -n \ |
c7871c82 | 2220 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` |
b29dc614 | 2221 | as_major=`expr "$as_vers" : '\([0-9]*\)'` |
2222 | as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
088fd851 | 2223 | changequote([,])dnl |
6d6c1801 | 2224 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2225 | then : | |
2226 | else gcc_cv_as_leb128=yes | |
2227 | fi | |
2228 | fi], | |
2229 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2230 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2231 | ||
fb39ff6e | 2232 | # Check if we have assembler support for unwind directives. |
2233 | gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
90deca2e | 2234 | ,, |
fb39ff6e | 2235 | [ .text |
2236 | .cfi_startproc | |
2237 | .cfi_offset 0, 0 | |
2238 | .cfi_same_value 1 | |
2239 | .cfi_def_cfa 1, 2 | |
2240 | .cfi_escape 1, 2, 3, 4, 5 | |
e94830ac | 2241 | .cfi_endproc], |
2242 | [case "$target" in | |
2243 | *-*-solaris*) | |
2244 | # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2245 | # read-only and read-write sections, we need to make sure that the | |
2246 | # assembler used emits read-write .eh_frame sections. | |
2247 | if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then | |
2248 | if test "x$gcc_cv_objdump" != x; then | |
2249 | if $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2250 | sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then | |
2251 | gcc_cv_as_cfi_directive=no | |
2252 | else | |
2253 | gcc_cv_as_cfi_directive=yes | |
2254 | fi | |
2255 | else | |
2256 | # no objdump, err on the side of caution | |
2257 | gcc_cv_as_cfi_directive=no | |
2258 | fi | |
2259 | else | |
2260 | gcc_cv_as_cfi_directive=yes | |
2261 | fi | |
2262 | ;; | |
2263 | *-*-*) | |
2264 | gcc_cv_as_cfi_directive=yes | |
2265 | ;; | |
2266 | esac]) | |
8eac5d17 | 2267 | if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then |
2268 | gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, | |
2269 | ,, | |
2270 | [ .text | |
2271 | .cfi_startproc | |
2272 | .cfi_adjust_cfa_offset 64 | |
2273 | .skip 512, 0 | |
2274 | .cfi_adjust_cfa_offset 128 | |
2275 | .cfi_endproc], | |
2276 | [ | |
2277 | changequote(,)dnl | |
2278 | if $gcc_cv_readelf -wf conftest.o 2>/dev/null \ | |
2279 | | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then | |
2280 | gcc_cv_as_cfi_advance_working=yes | |
2281 | fi | |
2282 | changequote([,])dnl | |
2283 | ]) | |
2284 | else | |
f9a42338 | 2285 | # no readelf, err on the side of caution |
2286 | gcc_cv_as_cfi_advance_working=no | |
8eac5d17 | 2287 | fi |
fb39ff6e | 2288 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, |
8eac5d17 | 2289 | [`if test $gcc_cv_as_cfi_directive = yes \ |
2290 | && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
3dcd5df1 | 2291 | [Define 0/1 if your assembler supports CFI directives.]) |
2292 | ||
2293 | gcc_GAS_CHECK_FEATURE([cfi personality directive], | |
90deca2e | 2294 | gcc_cv_as_cfi_personality_directive, ,, |
3dcd5df1 | 2295 | [ .text |
846a6223 | 2296 | .cfi_startproc |
3dcd5df1 | 2297 | .cfi_personality 0, symbol |
2298 | .cfi_endproc]) | |
2299 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
2300 | [`if test $gcc_cv_as_cfi_personality_directive = yes; | |
2301 | then echo 1; else echo 0; fi`], | |
2302 | [Define 0/1 if your assembler supports .cfi_personality.]) | |
fb39ff6e | 2303 | |
033a2356 | 2304 | gcc_GAS_CHECK_FEATURE([cfi sections directive], |
2305 | gcc_cv_as_cfi_sections_directive, ,, | |
2306 | [ .text | |
2307 | .cfi_sections .debug_frame, .eh_frame | |
2308 | .cfi_startproc | |
2309 | .cfi_endproc]) | |
2310 | AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE, | |
2311 | [`if test $gcc_cv_as_cfi_sections_directive = yes; | |
2312 | then echo 1; else echo 0; fi`], | |
2313 | [Define 0/1 if your assembler supports .cfi_sections.]) | |
2314 | ||
6d6c1801 | 2315 | # GAS versions up to and including 2.11.0 may mis-optimize |
2316 | # .eh_frame data. | |
2317 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2318 | [elf,2,12,0],, | |
2319 | [ .text | |
c3f311c4 | 2320 | .LFB1: |
2321 | .4byte 0 | |
2322 | .L1: | |
2323 | .4byte 0 | |
2324 | .LFE1: | |
2325 | .section .eh_frame,"aw",@progbits | |
2326 | __FRAME_BEGIN__: | |
2327 | .4byte .LECIE1-.LSCIE1 | |
2328 | .LSCIE1: | |
2329 | .4byte 0x0 | |
2330 | .byte 0x1 | |
2331 | .ascii "z\0" | |
2332 | .byte 0x1 | |
2333 | .byte 0x78 | |
2334 | .byte 0x1a | |
2335 | .byte 0x0 | |
2336 | .byte 0x4 | |
2337 | .4byte 1 | |
2338 | .p2align 1 | |
2339 | .LECIE1: | |
2340 | .LSFDE1: | |
2341 | .4byte .LEFDE1-.LASFDE1 | |
2342 | .LASFDE1: | |
2343 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2344 | .4byte .LFB1 | |
2345 | .4byte .LFE1-.LFB1 | |
2346 | .byte 0x4 | |
2347 | .4byte .LFE1-.LFB1 | |
2348 | .byte 0x4 | |
2349 | .4byte .L1-.LFB1 | |
6d6c1801 | 2350 | .LEFDE1:], |
6a8964db | 2351 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
2352 | cat > conftest.lit <<EOF | |
c3f311c4 | 2353 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
2354 | 0010 01000000 12000000 18000000 00000000 ................ | |
6a8964db | 2355 | 0020 08000000 04080000 0044 .........D @&t@ |
82ebecf9 | 2356 | EOF |
6a8964db | 2357 | cat > conftest.big <<EOF |
82ebecf9 | 2358 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
2359 | 0010 00000001 00000012 00000018 00000000 ................ | |
6a8964db | 2360 | 0020 00000008 04000000 0844 .........D @&t@ |
c3f311c4 | 2361 | EOF |
6d6c1801 | 2362 | # If the assembler didn't choke, and we can objdump, |
2363 | # and we got the correct data, then succeed. | |
a9e7d751 | 2364 | # The text in the here-document typically retains its unix-style line |
2365 | # endings, while the output of objdump will use host line endings. | |
2366 | # Therefore, use diff -b for the comparisons. | |
6d6c1801 | 2367 | if test x$gcc_cv_objdump != x \ |
2368 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2369 | | tail -3 > conftest.got \ | |
a9e7d751 | 2370 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ |
2371 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
6d6c1801 | 2372 | then |
2373 | gcc_cv_as_eh_frame=yes | |
2374 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2375 | gcc_cv_as_eh_frame=buggy | |
2376 | else | |
2377 | # Uh oh, what do we do now? | |
2378 | gcc_cv_as_eh_frame=no | |
2379 | fi]) | |
2380 | ||
2381 | if test $gcc_cv_as_eh_frame = buggy; then | |
2382 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2383 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
bb2821c0 | 2384 | fi |
bb2821c0 | 2385 | |
6d6c1801 | 2386 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
2387 | [elf,2,12,0], [--fatal-warnings], | |
cdb2d692 | 2388 | [.section .rodata.str, "aMS", @progbits, 1]) |
537cd941 | 2389 | if test $gcc_cv_as_shf_merge = no; then |
2390 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2391 | [elf,2,12,0], [--fatal-warnings], | |
2392 | [.section .rodata.str, "aMS", %progbits, 1]) | |
2393 | fi | |
cdb2d692 | 2394 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
2395 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2396 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
6d6c1801 | 2397 | |
537cd941 | 2398 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, |
2593b9be | 2399 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 2400 | [.section .text,"axG",@progbits,.foo,comdat]) |
2401 | if test $gcc_cv_as_comdat_group = yes; then | |
2402 | gcc_cv_as_comdat_group_percent=no | |
2403 | else | |
2404 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
2593b9be | 2405 | [elf,2,16,0], [--fatal-warnings], |
537cd941 | 2406 | [.section .text,"axG",%progbits,.foo,comdat]) |
2407 | fi | |
e97d11c2 | 2408 | if test $in_tree_ld = yes ; then |
2409 | comdat_group=no | |
2410 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2411 | && test $in_tree_ld_is_elf = yes; then | |
2412 | comdat_group=yes | |
2413 | fi | |
2414 | elif test x"$ld_vers" != x; then | |
2593b9be | 2415 | comdat_group=yes |
2416 | if test 0"$ld_date" -lt 20050308; then | |
2417 | if test -n "$ld_date"; then | |
2418 | # If there was date string, but was earlier than 2005-03-08, fail | |
2419 | comdat_group=no | |
2420 | elif test "$ld_vers_major" -lt 2; then | |
2421 | comdat_group=no | |
2422 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
2423 | comdat_group=no | |
2424 | fi | |
2425 | fi | |
f3424fe6 | 2426 | else |
2427 | # assume linkers other than GNU ld don't support COMDAT group | |
2428 | comdat_group=no | |
2429 | fi | |
2430 | if test $comdat_group = no; then | |
2431 | gcc_cv_as_comdat_group=no | |
2432 | gcc_cv_as_comdat_group_percent=no | |
2593b9be | 2433 | fi |
2434 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
537cd941 | 2435 | [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], |
2593b9be | 2436 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
537cd941 | 2437 | |
d01c707b | 2438 | gcc_GAS_CHECK_FEATURE([line table discriminator support], |
2439 | gcc_cv_as_discriminator, | |
2440 | [2,19,51],, | |
2441 | [ .text | |
2442 | .file 1 "conf.c" | |
2443 | .loc 1 1 0 discriminator 1],, | |
2444 | [AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, | |
2445 | [Define if your assembler supports the .loc discriminator sub-directive.])]) | |
2446 | ||
c656b8fd | 2447 | # Thread-local storage - the check is heavily parameterized. |
2d6788fe | 2448 | conftest_s= |
2449 | tls_first_major= | |
2450 | tls_first_minor= | |
527d5be8 | 2451 | tls_as_opt= |
2d6788fe | 2452 | case "$target" in |
2453 | changequote(,)dnl | |
5f7b9df8 | 2454 | alpha*-*-*) |
2455 | conftest_s=' | |
2456 | .section ".tdata","awT",@progbits | |
2457 | foo: .long 25 | |
2458 | .text | |
2459 | ldq $27,__tls_get_addr($29) !literal!1 | |
2460 | lda $16,foo($29) !tlsgd!1 | |
2461 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2462 | ldq $27,__tls_get_addr($29) !literal!2 | |
2463 | lda $16,foo($29) !tlsldm!2 | |
2464 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2465 | ldq $1,foo($29) !gotdtprel | |
2466 | ldah $2,foo($29) !dtprelhi | |
2467 | lda $3,foo($2) !dtprello | |
2468 | lda $4,foo($29) !dtprel | |
2469 | ldq $1,foo($29) !gottprel | |
2470 | ldah $2,foo($29) !tprelhi | |
2471 | lda $3,foo($2) !tprello | |
2472 | lda $4,foo($29) !tprel' | |
2473 | tls_first_major=2 | |
2474 | tls_first_minor=13 | |
07a23b4e | 2475 | tls_as_opt=--fatal-warnings |
5f7b9df8 | 2476 | ;; |
10178ded | 2477 | cris-*-*|crisv32-*-*) |
2478 | conftest_s=' | |
2479 | .section ".tdata","awT",@progbits | |
2480 | x: .long 25 | |
2481 | .text | |
2482 | move.d x:IE,$r10 | |
2483 | nop' | |
2484 | tls_first_major=2 | |
2485 | tls_first_minor=20 | |
2486 | tls_as_opt=--fatal-warnings | |
2487 | ;; | |
cfd199cb | 2488 | frv*-*-*) |
2489 | conftest_s=' | |
2490 | .section ".tdata","awT",@progbits | |
2491 | x: .long 25 | |
2492 | .text | |
2493 | call #gettlsoff(x)' | |
2494 | tls_first_major=2 | |
2495 | tls_first_minor=14 | |
2496 | ;; | |
716b2c5a | 2497 | hppa*-*-linux*) |
2498 | conftest_s=' | |
2499 | t1: .reg %r20 | |
2500 | t2: .reg %r21 | |
2501 | gp: .reg %r19 | |
2502 | .section ".tdata","awT",@progbits | |
2503 | foo: .long 25 | |
2504 | .text | |
2505 | .align 4 | |
2506 | addil LT%foo-$tls_gdidx$,gp | |
2507 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
2508 | b __tls_get_addr | |
2509 | nop | |
2510 | addil LT%foo-$tls_ldidx$,gp | |
2511 | b __tls_get_addr | |
2512 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
2513 | addil LR%foo-$tls_dtpoff$,%ret0 | |
2514 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
2515 | mfctl %cr27,%t1 | |
2516 | addil LT%foo-$tls_ieoff$,gp | |
2517 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
2518 | add %t1,%t2,%t3 | |
2519 | mfctl %cr27,%t1 | |
2520 | addil LR%foo-$tls_leoff$,%t1 | |
2521 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
2522 | tls_first_major=2 | |
2523 | tls_first_minor=15 | |
2524 | tls_as_opt=--fatal-warnings | |
2525 | ;; | |
f655717d | 2526 | arm*-*-*) |
2527 | conftest_s=' | |
2528 | .section ".tdata","awT",%progbits | |
2529 | foo: .long 25 | |
2530 | .text | |
2531 | .word foo(gottpoff) | |
2532 | .word foo(tpoff) | |
2533 | .word foo(tlsgd) | |
2534 | .word foo(tlsldm) | |
2535 | .word foo(tlsldo)' | |
2536 | tls_first_major=2 | |
2537 | tls_first_minor=17 | |
2538 | ;; | |
2d6788fe | 2539 | i[34567]86-*-*) |
2d6788fe | 2540 | conftest_s=' |
2541 | .section ".tdata","awT",@progbits | |
2542 | foo: .long 25 | |
2543 | .text | |
2544 | movl %gs:0, %eax | |
2545 | leal foo@TLSGD(,%ebx,1), %eax | |
2546 | leal foo@TLSLDM(%ebx), %eax | |
2547 | leal foo@DTPOFF(%eax), %edx | |
2548 | movl foo@GOTTPOFF(%ebx), %eax | |
2549 | subl foo@GOTTPOFF(%ebx), %eax | |
29d8dd5c | 2550 | addl foo@GOTNTPOFF(%ebx), %eax |
2551 | movl foo@INDNTPOFF, %eax | |
2d6788fe | 2552 | movl $foo@TPOFF, %eax |
2553 | subl $foo@TPOFF, %eax | |
2554 | leal foo@NTPOFF(%ecx), %eax' | |
2555 | tls_first_major=2 | |
29d8dd5c | 2556 | tls_first_minor=14 |
07a23b4e | 2557 | tls_as_opt=--fatal-warnings |
29d8dd5c | 2558 | ;; |
2559 | x86_64-*-*) | |
2560 | conftest_s=' | |
2561 | .section ".tdata","awT",@progbits | |
2562 | foo: .long 25 | |
2563 | .text | |
2564 | movq %fs:0, %rax | |
2565 | leaq foo@TLSGD(%rip), %rdi | |
2566 | leaq foo@TLSLD(%rip), %rdi | |
2567 | leaq foo@DTPOFF(%rax), %rdx | |
2568 | movq foo@GOTTPOFF(%rip), %rax | |
2569 | movq $foo@TPOFF, %rax' | |
2570 | tls_first_major=2 | |
2571 | tls_first_minor=14 | |
07a23b4e | 2572 | tls_as_opt=--fatal-warnings |
2d6788fe | 2573 | ;; |
c87e09ad | 2574 | ia64-*-*) |
2575 | conftest_s=' | |
2576 | .section ".tdata","awT",@progbits | |
2577 | foo: data8 25 | |
2578 | .text | |
2579 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2580 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
2581 | addl r18 = @ltoff(@tprel(foo#)), gp | |
2582 | addl r19 = @dtprel(foo#), gp | |
2583 | adds r21 = @dtprel(foo#), r13 | |
2584 | movl r23 = @dtprel(foo#) | |
2585 | addl r20 = @tprel(foo#), gp | |
2586 | adds r22 = @tprel(foo#), r13 | |
2587 | movl r24 = @tprel(foo#)' | |
2588 | tls_first_major=2 | |
2589 | tls_first_minor=13 | |
07a23b4e | 2590 | tls_as_opt=--fatal-warnings |
c87e09ad | 2591 | ;; |
42bdde4b | 2592 | mips*-*-*) |
2593 | conftest_s=' | |
2594 | .section .tdata,"awT",@progbits | |
2595 | x: | |
2596 | .word 2 | |
2597 | .text | |
2598 | addiu $4, $28, %tlsgd(x) | |
2599 | addiu $4, $28, %tlsldm(x) | |
2600 | lui $4, %dtprel_hi(x) | |
2601 | addiu $4, $4, %dtprel_lo(x) | |
2602 | lw $4, %gottprel(x)($28) | |
2603 | lui $4, %tprel_hi(x) | |
2604 | addiu $4, $4, %tprel_lo(x)' | |
2605 | tls_first_major=2 | |
2606 | tls_first_minor=16 | |
2607 | tls_as_opt='-32 --fatal-warnings' | |
2608 | ;; | |
869bde6b | 2609 | m68k-*-*) |
2610 | conftest_s=' | |
2611 | .section .tdata,"awT",@progbits | |
2612 | x: | |
2613 | .word 2 | |
2614 | .text | |
2615 | foo: | |
2616 | move.l x@TLSGD(%a5),%a0 | |
2617 | move.l x@TLSLDM(%a5),%a0 | |
2618 | move.l x@TLSLDO(%a5),%a0 | |
2619 | move.l x@TLSIE(%a5),%a0 | |
2620 | move.l x@TLSLE(%a5),%a0' | |
2621 | tls_first_major=2 | |
2622 | tls_first_minor=19 | |
2623 | tls_as_opt='--fatal-warnings' | |
2624 | ;; | |
9b552c45 | 2625 | powerpc-*-*) |
2626 | conftest_s=' | |
2627 | .section ".tdata","awT",@progbits | |
2628 | .align 2 | |
2629 | ld0: .space 4 | |
2630 | ld1: .space 4 | |
2631 | x1: .space 4 | |
2632 | x2: .space 4 | |
2633 | x3: .space 4 | |
2634 | .text | |
2635 | addi 3,31,ld0@got@tlsgd | |
2636 | bl __tls_get_addr | |
2637 | addi 3,31,x1@got@tlsld | |
2638 | bl __tls_get_addr | |
2639 | addi 9,3,x1@dtprel | |
2640 | addis 9,3,x2@dtprel@ha | |
2641 | addi 9,9,x2@dtprel@l | |
2642 | lwz 9,x3@got@tprel(31) | |
2643 | add 9,9,x@tls | |
2644 | addi 9,2,x1@tprel | |
2645 | addis 9,2,x2@tprel@ha | |
2646 | addi 9,9,x2@tprel@l' | |
2647 | tls_first_major=2 | |
2648 | tls_first_minor=14 | |
07a23b4e | 2649 | tls_as_opt="-a32 --fatal-warnings" |
9b552c45 | 2650 | ;; |
2651 | powerpc64-*-*) | |
2652 | conftest_s=' | |
2653 | .section ".tdata","awT",@progbits | |
2654 | .align 3 | |
2655 | ld0: .space 8 | |
2656 | ld1: .space 8 | |
2657 | x1: .space 8 | |
2658 | x2: .space 8 | |
2659 | x3: .space 8 | |
2660 | .text | |
2661 | addi 3,2,ld0@got@tlsgd | |
2662 | bl .__tls_get_addr | |
2663 | nop | |
2664 | addi 3,2,ld1@toc | |
2665 | bl .__tls_get_addr | |
2666 | nop | |
2667 | addi 3,2,x1@got@tlsld | |
2668 | bl .__tls_get_addr | |
2669 | nop | |
2670 | addi 9,3,x1@dtprel | |
2671 | bl .__tls_get_addr | |
2672 | nop | |
2673 | addis 9,3,x2@dtprel@ha | |
2674 | addi 9,9,x2@dtprel@l | |
2675 | bl .__tls_get_addr | |
2676 | nop | |
2677 | ld 9,x3@got@dtprel(2) | |
2678 | add 9,9,3 | |
2679 | bl .__tls_get_addr | |
2680 | nop' | |
2681 | tls_first_major=2 | |
2682 | tls_first_minor=14 | |
07a23b4e | 2683 | tls_as_opt="-a64 --fatal-warnings" |
9b552c45 | 2684 | ;; |
be00aaa8 | 2685 | s390-*-*) |
2686 | conftest_s=' | |
2687 | .section ".tdata","awT",@progbits | |
2688 | foo: .long 25 | |
2689 | .text | |
2690 | .long foo@TLSGD | |
2691 | .long foo@TLSLDM | |
2692 | .long foo@DTPOFF | |
2693 | .long foo@NTPOFF | |
2694 | .long foo@GOTNTPOFF | |
2695 | .long foo@INDNTPOFF | |
2696 | l %r1,foo@GOTNTPOFF(%r12) | |
2697 | l %r1,0(%r1):tls_load:foo | |
2698 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2699 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2700 | tls_first_major=2 | |
2701 | tls_first_minor=14 | |
07a23b4e | 2702 | tls_as_opt="-m31 --fatal-warnings" |
be00aaa8 | 2703 | ;; |
2704 | s390x-*-*) | |
2705 | conftest_s=' | |
2706 | .section ".tdata","awT",@progbits | |
2707 | foo: .long 25 | |
2708 | .text | |
2709 | .quad foo@TLSGD | |
2710 | .quad foo@TLSLDM | |
2711 | .quad foo@DTPOFF | |
2712 | .quad foo@NTPOFF | |
2713 | .quad foo@GOTNTPOFF | |
2714 | lg %r1,foo@GOTNTPOFF(%r12) | |
2715 | larl %r1,foo@INDNTPOFF | |
2716 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2717 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2718 | tls_first_major=2 | |
2719 | tls_first_minor=14 | |
07a23b4e | 2720 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
be00aaa8 | 2721 | ;; |
ae852eea | 2722 | sh-*-* | sh[34]-*-*) |
2723 | conftest_s=' | |
2724 | .section ".tdata","awT",@progbits | |
2725 | foo: .long 25 | |
2726 | .text | |
2727 | .long foo@TLSGD | |
2728 | .long foo@TLSLDM | |
2729 | .long foo@DTPOFF | |
2730 | .long foo@GOTTPOFF | |
2731 | .long foo@TPOFF' | |
2732 | tls_first_major=2 | |
2733 | tls_first_minor=13 | |
07a23b4e | 2734 | tls_as_opt=--fatal-warnings |
ae852eea | 2735 | ;; |
05b3a83f | 2736 | sparc*-*-*) |
07a23b4e | 2737 | case "$target" in |
43eca37c | 2738 | sparc*-sun-solaris2.[56789]*) |
2739 | # TLS was introduced in the Solaris 9 4/04 release but | |
2740 | # we do not enable it by default on Solaris 9 either. | |
2741 | if test "x$enable_tls" = xyes ; then | |
2742 | on_solaris=yes | |
2743 | else | |
2744 | enable_tls=no; | |
2745 | fi | |
2746 | ;; | |
07a23b4e | 2747 | sparc*-sun-solaris2.*) |
2748 | on_solaris=yes | |
2749 | ;; | |
2750 | *) | |
2751 | on_solaris=no | |
2752 | ;; | |
2753 | esac | |
2754 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2755 | conftest_s=' | |
2756 | .section ".tdata",#alloc,#write,#tls | |
2757 | foo: .long 25 | |
2758 | .text | |
2759 | sethi %tgd_hi22(foo), %o0 | |
2760 | add %o0, %tgd_lo10(foo), %o1 | |
2761 | add %l7, %o1, %o0, %tgd_add(foo) | |
2762 | call __tls_get_addr, %tgd_call(foo) | |
2763 | sethi %tldm_hi22(foo), %l1 | |
2764 | add %l1, %tldm_lo10(foo), %l2 | |
2765 | add %l7, %l2, %o0, %tldm_add(foo) | |
2766 | call __tls_get_addr, %tldm_call(foo) | |
2767 | sethi %tldo_hix22(foo), %l3 | |
2768 | xor %l3, %tldo_lox10(foo), %l4 | |
2769 | add %o0, %l4, %l5, %tldo_add(foo) | |
2770 | sethi %tie_hi22(foo), %o3 | |
2771 | add %o3, %tie_lo10(foo), %o3 | |
2772 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2773 | add %g7, %o2, %o4, %tie_add(foo) | |
2774 | sethi %tle_hix22(foo), %l1 | |
2775 | xor %l1, %tle_lox10(foo), %o5 | |
2776 | ld [%g7 + %o5], %o1' | |
2777 | tls_first_major=0 | |
2778 | tls_first_minor=0 | |
2779 | else | |
2780 | conftest_s=' | |
05b3a83f | 2781 | .section ".tdata","awT",@progbits |
2782 | foo: .long 25 | |
2783 | .text | |
2784 | sethi %tgd_hi22(foo), %o0 | |
2785 | add %o0, %tgd_lo10(foo), %o1 | |
2786 | add %l7, %o1, %o0, %tgd_add(foo) | |
2787 | call __tls_get_addr, %tgd_call(foo) | |
2788 | sethi %tldm_hi22(foo), %l1 | |
2789 | add %l1, %tldm_lo10(foo), %l2 | |
2790 | add %l7, %l2, %o0, %tldm_add(foo) | |
2791 | call __tls_get_addr, %tldm_call(foo) | |
2792 | sethi %tldo_hix22(foo), %l3 | |
2793 | xor %l3, %tldo_lox10(foo), %l4 | |
2794 | add %o0, %l4, %l5, %tldo_add(foo) | |
2795 | sethi %tie_hi22(foo), %o3 | |
2796 | add %o3, %tie_lo10(foo), %o3 | |
2797 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2798 | add %g7, %o2, %o4, %tie_add(foo) | |
2799 | sethi %tle_hix22(foo), %l1 | |
2800 | xor %l1, %tle_lox10(foo), %o5 | |
2801 | ld [%g7 + %o5], %o1' | |
2802 | tls_first_major=2 | |
2803 | tls_first_minor=14 | |
07a23b4e | 2804 | tls_as_opt="-32 --fatal-warnings" |
2805 | fi | |
05b3a83f | 2806 | ;; |
c656b8fd | 2807 | xtensa*-*-*) |
2808 | conftest_s=' | |
2809 | .section ".tdata","awT",@progbits | |
2810 | foo: .long 25 | |
2811 | .text | |
2812 | movi a8, foo@TLSFUNC | |
2813 | movi a10, foo@TLSARG | |
2814 | callx8.tls a8, foo@TLSCALL' | |
2815 | tls_first_major=2 | |
2816 | tls_first_minor=19 | |
2817 | ;; | |
05b3a83f | 2818 | changequote([,])dnl |
2d6788fe | 2819 | esac |
c024e802 | 2820 | set_have_as_tls=no |
2821 | if test "x$enable_tls" = xno ; then | |
2822 | : # TLS explicitly disabled. | |
2823 | elif test "x$enable_tls" = xyes ; then | |
2824 | set_have_as_tls=yes # TLS explicitly enabled. | |
2825 | elif test -z "$tls_first_major"; then | |
6d6c1801 | 2826 | : # If we don't have a check, assume no support. |
2827 | else | |
2828 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
07a23b4e | 2829 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
c024e802 | 2830 | [set_have_as_tls=yes]) |
2831 | fi | |
2832 | if test $set_have_as_tls = yes ; then | |
2833 | AC_DEFINE(HAVE_AS_TLS, 1, | |
2834 | [Define if your assembler supports thread-local storage.]) | |
2d6788fe | 2835 | fi |
6d6c1801 | 2836 | |
2837 | # Target-specific assembler checks. | |
2d6788fe | 2838 | |
79f90e2b | 2839 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
2840 | gcc_cv_ld_static_dynamic=no | |
2841 | if test $in_tree_ld = yes ; then | |
1301d110 | 2842 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then |
79f90e2b | 2843 | gcc_cv_ld_static_dynamic=yes |
2844 | fi | |
2845 | elif test x$gcc_cv_ld != x; then | |
2846 | # Check if linker supports -Bstatic/-Bdynamic option | |
2847 | if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2848 | && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2849 | gcc_cv_ld_static_dynamic=yes | |
2850 | fi | |
2851 | fi | |
2852 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2853 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2854 | [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2855 | fi | |
2856 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2857 | ||
9c948bc2 | 2858 | if test x"$demangler_in_ld" = xyes; then |
2859 | AC_MSG_CHECKING(linker --demangle support) | |
2860 | gcc_cv_ld_demangle=no | |
2861 | if test $in_tree_ld = yes; then | |
2862 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2863 | gcc_cv_ld_demangle=yes | |
2864 | fi | |
2865 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2866 | # Check if the GNU linker supports --demangle option | |
2867 | if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2868 | gcc_cv_ld_demangle=yes | |
2869 | fi | |
2870 | fi | |
2871 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
2872 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2873 | [Define if your linker supports --demangle option.]) | |
2874 | fi | |
2875 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2876 | fi | |
2877 | ||
0d6378a9 | 2878 | case "$target" in |
8626dbb9 | 2879 | # All TARGET_ABI_OSF targets. |
2880 | alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
6d6c1801 | 2881 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
2882 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2883 | [ .set nomacro | |
8626dbb9 | 2884 | .text |
2885 | extbl $3, $2, $3 !lituse_bytoff!1 | |
2886 | ldq $2, a($29) !literal!1 | |
2887 | ldq $4, b($29) !literal!2 | |
2888 | ldq_u $3, 0($2) !lituse_base!1 | |
2889 | ldq $27, f($29) !literal!5 | |
2890 | jsr $26, ($27), f !lituse_jsr!5 | |
2891 | ldah $29, 0($26) !gpdisp!3 | |
2892 | lda $0, c($29) !gprel | |
2893 | ldah $1, d($29) !gprelhigh | |
2894 | lda $1, d($1) !gprellow | |
6d6c1801 | 2895 | lda $29, 0($29) !gpdisp!3],, |
2896 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2897 | [Define if your assembler supports explicit relocations.])]) | |
592222c2 | 2898 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
2899 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
2900 | [ .set nomacro | |
2901 | .text | |
2902 | ldq $27, a($29) !literal!1 | |
2903 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
2904 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
2905 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
8626dbb9 | 2906 | ;; |
4c335027 | 2907 | |
ce4d6134 | 2908 | cris-*-*) |
2909 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2910 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2911 | [-no-mul-bug-abort], [.text],, | |
2912 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2913 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2914 | ;; | |
2915 | ||
6d6c1801 | 2916 | sparc*-*-*) |
2917 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2918 | [.register %g2, #scratch],, | |
2919 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2920 | [Define if your assembler supports .register.])]) | |
2921 | ||
2922 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2923 | [-relax], [.text],, | |
2924 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2925 | [Define if your assembler supports -relax option.])]) | |
2926 | ||
2927 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2928 | gcc_cv_as_sparc_ua_pcrel,, | |
2929 | [-K PIC], | |
2930 | [.text | |
2931 | foo: | |
2932 | nop | |
2933 | .data | |
2934 | .align 4 | |
2935 | .byte 0 | |
2936 | .uaword %r_disp32(foo)], | |
2937 | [if test x$gcc_cv_ld != x \ | |
2938 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2939 | gcc_cv_as_sparc_ua_pcrel=yes | |
2940 | fi | |
2941 | rm -f conftest], | |
2942 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
66e333b1 | 2943 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
e715c863 | 2944 | |
6d6c1801 | 2945 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
2946 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2947 | [-K PIC], | |
2948 | [.data | |
2949 | .align 4 | |
2950 | .byte 0x31 | |
2951 | .uaword %r_disp32(foo) | |
2952 | .byte 0x32, 0x33, 0x34 | |
2953 | .global foo | |
2954 | .hidden foo | |
2955 | foo: | |
2956 | .skip 4], | |
2957 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2958 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2959 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2960 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2961 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2962 | | grep 'DISP32' > /dev/null 2>&1; then | |
2963 | : | |
5a49bf3e | 2964 | else |
6d6c1801 | 2965 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
0569c094 | 2966 | fi |
6d6c1801 | 2967 | fi |
2968 | rm -f conftest], | |
2969 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2970 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2971 | ]) # unaligned pcrel relocs | |
2972 | ||
2973 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2974 | gcc_cv_as_sparc_offsetable_lo10,, | |
2975 | [-xarch=v9], | |
2976 | [.text | |
2977 | or %g1, %lo(ab) + 12, %g1 | |
2978 | or %g1, %lo(ab + 12), %g1], | |
2979 | [if test x$gcc_cv_objdump != x \ | |
7908b1a1 | 2980 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
6d6c1801 | 2981 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
19f7ae9a | 2982 | gcc_cv_as_sparc_offsetable_lo10=yes |
6d6c1801 | 2983 | fi], |
2984 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2985 | [Define if your assembler supports offsetable %lo().])]) | |
d300bd48 | 2986 | ;; |
2987 | ||
2988 | changequote(,)dnl | |
96b9fbc1 | 2989 | i[34567]86-*-* | x86_64-*-*) |
d300bd48 | 2990 | changequote([,])dnl |
1f10d387 | 2991 | case $target_os in |
2992 | cygwin* | pe | mingw32*) | |
7b897de3 | 2993 | # Recent binutils allows the three-operand form of ".comm" on PE. This |
2994 | # definition is used unconditionally to initialise the default state of | |
2995 | # the target option variable that governs usage of the feature. | |
2996 | gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, | |
2997 | [2,19,52],,[.comm foo,1,32]) | |
2998 | AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, | |
2999 | [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], | |
3000 | [Define if your assembler supports specifying the alignment | |
3001 | of objects allocated using the GAS .comm command.]) | |
1f10d387 | 3002 | # Used for DWARF 2 in PE |
3003 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
3004 | gcc_cv_as_ix86_pe_secrel32, | |
3005 | [2,15,91],, | |
3006 | [.text | |
3007 | foo: nop | |
3008 | .data | |
3009 | .secrel32 foo], | |
3010 | [if test x$gcc_cv_ld != x \ | |
3011 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
3012 | gcc_cv_as_ix86_pe_secrel32=yes | |
3013 | fi | |
3014 | rm -f conftest], | |
3015 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
3016 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
3017 | ;; | |
3018 | esac | |
3019 | ||
6d6c1801 | 3020 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
6cc62ffa | 3021 | gcc_cv_as_ix86_filds,,, |
3022 | [filds mem; fists mem],, | |
3023 | [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, | |
3024 | [Define if your assembler uses filds and fists mnemonics.])]) | |
3025 | ||
3026 | gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], | |
3027 | gcc_cv_as_ix86_fildq,,, | |
3028 | [fildq mem; fistpq mem],, | |
3029 | [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, | |
3030 | [Define if your assembler uses fildq and fistq mnemonics.])]) | |
6d6c1801 | 3031 | |
65cce9df | 3032 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
3033 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
3034 | [cmovl.l %edx, %eax],, | |
3035 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
3036 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
3037 | ||
97f2677a | 3038 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], |
3039 | gcc_cv_as_ix86_ffreep,,, | |
3040 | [ffreep %st(1)],, | |
3041 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
3042 | [Define if your assembler supports the ffreep mnemonic.])]) | |
3043 | ||
735630ef | 3044 | gcc_GAS_CHECK_FEATURE([sahf mnemonic], |
3045 | gcc_cv_as_ix86_sahf,,, | |
3046 | [sahf],, | |
3047 | [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, | |
3048 | [Define if your assembler supports the sahf mnemonic.])]) | |
3049 | ||
95792072 | 3050 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], |
3051 | gcc_cv_as_ix86_diff_sect_delta,,, | |
3052 | [.section .rodata | |
3053 | .L1: | |
3054 | .long .L2-.L1 | |
3055 | .long .L3-.L1 | |
3056 | .text | |
3057 | .L3: nop | |
3058 | .L2: nop],, | |
3059 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
3060 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
3061 | ||
f079b855 | 3062 | # This one is used unconditionally by i386.[ch]; it is to be defined |
3063 | # to 1 if the feature is present, 0 otherwise. | |
6d6c1801 | 3064 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], |
3065 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
3066 | [ .text | |
bb006a84 | 3067 | .L0: |
3068 | nop | |
3069 | .data | |
f079b855 | 3070 | .long .L0@GOTOFF]) |
3071 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
3072 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
3073 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
d300bd48 | 3074 | ;; |
0cc4b4a2 | 3075 | |
3076 | ia64*-*-*) | |
6d6c1801 | 3077 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
3078 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
13f3d840 | 3079 | [ .text |
0cc4b4a2 | 3080 | addl r15 = @ltoffx(x#), gp |
3081 | ;; | |
13f3d840 | 3082 | ld8.mov r16 = [[r15]], x#],, |
6d6c1801 | 3083 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
3084 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
3085 | ||
0cc4b4a2 | 3086 | ;; |
6d6c1801 | 3087 | |
24880e5b | 3088 | powerpc*-*-*) |
6d6c1801 | 3089 | case $target in |
a8bb341c | 3090 | *-*-aix*) conftest_s=' .machine "pwr5" |
3091 | .csect .text[[PR]] | |
3ba829c3 | 3092 | mfcr 3,128';; |
cd0c3d24 | 3093 | *-*-darwin*) |
3094 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
3095 | gcc_cv_as_machine_directive,,, | |
3096 | [ .machine ppc7400]) | |
3097 | if test x$gcc_cv_as_machine_directive != xyes; then | |
3098 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
3099 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
3100 | test x$build = x$target && exit 1 | |
3101 | fi | |
3102 | conftest_s=' .text | |
3ba829c3 | 3103 | mfcr r3,128';; |
ce1a729a | 3104 | *) conftest_s=' .machine power4 |
4adb2d8e | 3105 | .text |
3ba829c3 | 3106 | mfcr 3,128';; |
6d6c1801 | 3107 | esac |
6d6c1801 | 3108 | |
3109 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
3110 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
3111 | [$conftest_s],, | |
3112 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
3113 | [Define if your assembler supports mfcr field.])]) | |
a8bb341c | 3114 | |
3115 | case $target in | |
3116 | *-*-aix*) conftest_s=' .machine "pwr5" | |
3117 | .csect .text[[PR]] | |
3118 | popcntb 3,3';; | |
3119 | *) conftest_s=' .machine power5 | |
3120 | .text | |
3121 | popcntb 3,3';; | |
3122 | esac | |
3123 | ||
3124 | gcc_GAS_CHECK_FEATURE([popcntb support], | |
3125 | gcc_cv_as_powerpc_popcntb, [2,17,0],, | |
3126 | [$conftest_s],, | |
3127 | [AC_DEFINE(HAVE_AS_POPCNTB, 1, | |
3128 | [Define if your assembler supports popcntb field.])]) | |
3129 | ||
a6018579 | 3130 | case $target in |
3131 | *-*-aix*) conftest_s=' .machine "pwr5x" | |
3132 | .csect .text[[PR]] | |
3133 | frin 1,1';; | |
015fab10 | 3134 | *) conftest_s=' .machine power5 |
a6018579 | 3135 | .text |
3136 | frin 1,1';; | |
3137 | esac | |
3138 | ||
3139 | gcc_GAS_CHECK_FEATURE([fp round support], | |
3140 | gcc_cv_as_powerpc_fprnd, [2,17,0],, | |
3141 | [$conftest_s],, | |
3142 | [AC_DEFINE(HAVE_AS_FPRND, 1, | |
3143 | [Define if your assembler supports fprnd.])]) | |
3144 | ||
c15fcd1f | 3145 | case $target in |
3146 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3147 | .csect .text[[PR]] | |
3148 | mffgpr 1,3';; | |
3149 | *) conftest_s=' .machine power6 | |
3150 | .text | |
3151 | mffgpr 1,3';; | |
3152 | esac | |
3153 | ||
3154 | gcc_GAS_CHECK_FEATURE([move fp gpr support], | |
9c878e1b | 3155 | gcc_cv_as_powerpc_mfpgpr, [2,19,2],, |
c15fcd1f | 3156 | [$conftest_s],, |
3157 | [AC_DEFINE(HAVE_AS_MFPGPR, 1, | |
3158 | [Define if your assembler supports mffgpr and mftgpr.])]) | |
3159 | ||
197f58fa | 3160 | case $target in |
3161 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
3162 | LCF..0: | |
3163 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
3164 | *-*-darwin*) | |
3165 | conftest_s=' .text | |
3166 | LCF0: | |
3167 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
3168 | *) conftest_s=' .text | |
3169 | .LCF0: | |
3170 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
3171 | esac | |
3172 | ||
34fe62ca | 3173 | gcc_GAS_CHECK_FEATURE([rel16 relocs], |
3174 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
3175 | [$conftest_s],, | |
3176 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
3177 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
3178 | ||
3230b740 | 3179 | case $target in |
3180 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3181 | .csect .text[[PR]] | |
3182 | cmpb 3,4,5';; | |
3183 | *) conftest_s=' .machine power6 | |
3184 | .text | |
3185 | cmpb 3,4,5';; | |
3186 | esac | |
3187 | ||
3188 | gcc_GAS_CHECK_FEATURE([compare bytes support], | |
9c878e1b | 3189 | gcc_cv_as_powerpc_cmpb, [2,19,2], -a32, |
3230b740 | 3190 | [$conftest_s],, |
3191 | [AC_DEFINE(HAVE_AS_CMPB, 1, | |
3192 | [Define if your assembler supports cmpb.])]) | |
3193 | ||
3194 | case $target in | |
3195 | *-*-aix*) conftest_s=' .machine "pwr6" | |
3196 | .csect .text[[PR]] | |
88f38265 | 3197 | dadd 1,2,3';; |
3230b740 | 3198 | *) conftest_s=' .machine power6 |
3199 | .text | |
88f38265 | 3200 | dadd 1,2,3';; |
3230b740 | 3201 | esac |
3202 | ||
3203 | gcc_GAS_CHECK_FEATURE([decimal float support], | |
9c878e1b | 3204 | gcc_cv_as_powerpc_dfp, [2,19,2], -a32, |
3230b740 | 3205 | [$conftest_s],, |
3206 | [AC_DEFINE(HAVE_AS_DFP, 1, | |
3207 | [Define if your assembler supports DFP instructions.])]) | |
6c7d78e4 | 3208 | |
94f7a54b | 3209 | case $target in |
3210 | *-*-aix*) conftest_s=' .machine "pwr7" | |
3211 | .csect .text[[PR]] | |
3212 | lxvd2x 1,2,3';; | |
3213 | *) conftest_s=' .machine power7 | |
3214 | .text | |
3215 | lxvd2x 1,2,3';; | |
3216 | esac | |
3217 | ||
3218 | gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
9c878e1b | 3219 | gcc_cv_as_powerpc_vsx, [2,19,2], -a32, |
94f7a54b | 3220 | [$conftest_s],, |
3221 | [AC_DEFINE(HAVE_AS_VSX, 1, | |
3222 | [Define if your assembler supports VSX instructions.])]) | |
3223 | ||
9c878e1b | 3224 | case $target in |
3225 | *-*-aix*) conftest_s=' .machine "pwr7" | |
3226 | .csect .text[[PR]] | |
3227 | popcntd 3,3';; | |
3228 | *) conftest_s=' .machine power7 | |
3229 | .text | |
3230 | popcntd 3,3';; | |
3231 | esac | |
3232 | ||
3233 | gcc_GAS_CHECK_FEATURE([popcntd support], | |
3234 | gcc_cv_as_powerpc_popcntd, [2,19,2], -a32, | |
3235 | [$conftest_s],, | |
3236 | [AC_DEFINE(HAVE_AS_POPCNTD, 1, | |
3237 | [Define if your assembler supports POPCNTD instructions.])]) | |
3238 | ||
3239 | case $target in | |
3240 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
3241 | lwsync';; | |
3242 | *) conftest_s=' .text | |
3243 | lwsync';; | |
3244 | esac | |
3245 | ||
3246 | gcc_GAS_CHECK_FEATURE([lwsync support], | |
3247 | gcc_cv_as_powerpc_lwsync, [2,19,2], -a32, | |
3248 | [$conftest_s],, | |
3249 | [AC_DEFINE(HAVE_AS_LWSYNC, 1, | |
3250 | [Define if your assembler supports LWSYNC instructions.])]) | |
3251 | ||
6c7d78e4 | 3252 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], |
3253 | gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
3254 | [.gnu_attribute 4,1],, | |
3255 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3256 | [Define if your assembler supports .gnu_attribute.])]) | |
d46ea878 | 3257 | |
3258 | gcc_GAS_CHECK_FEATURE([tls marker support], | |
3259 | gcc_cv_as_powerpc_tls_markers, [2,20,0],, | |
3260 | [ bl __tls_get_addr(x@tlsgd)],, | |
3261 | [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, | |
3262 | [Define if your assembler supports arg info for __tls_get_addr.])]) | |
24880e5b | 3263 | ;; |
d6723bcd | 3264 | |
6d6c1801 | 3265 | mips*-*-*) |
3266 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
3267 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
3268 | [ lw $4,%gp_rel(foo)($4)],, | |
3269 | [if test x$target_cpu_default = x | |
3270 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
3271 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
3272 | fi]) | |
f863d3e3 | 3273 | gcc_GAS_CHECK_FEATURE([-mno-shared support], |
3274 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
3275 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
3276 | [Define if the assembler understands -mno-shared.])]) | |
0fd6d684 | 3277 | |
3278 | gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
3279 | gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
3280 | [.gnu_attribute 4,1],, | |
3281 | [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3282 | [Define if your assembler supports .gnu_attribute.])]) | |
c9eabb6d | 3283 | |
3284 | gcc_GAS_CHECK_FEATURE([.dtprelword support], | |
3285 | gcc_cv_as_mips_dtprelword, [2,18,0],, | |
3286 | [.section .tdata,"awT",@progbits | |
3287 | x: | |
3288 | .word 2 | |
3289 | .text | |
3290 | .dtprelword x+0x8000],, | |
3291 | [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
3292 | [Define if your assembler supports .dtprelword.])]) | |
ca30e0b9 | 3293 | |
3294 | AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) | |
3295 | gcc_cv_as_ld_jalr_reloc=no | |
3296 | if test $gcc_cv_as_mips_explicit_relocs = yes; then | |
3297 | if test $in_tree_ld = yes ; then | |
3298 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3299 | && test $in_tree_ld_is_elf = yes; then | |
3300 | gcc_cv_as_ld_jalr_reloc=yes | |
3301 | fi | |
3302 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then | |
3303 | echo ' .ent x' > conftest.s | |
3304 | echo 'x: ld $2,%got_disp(y)($3)' >> conftest.s | |
3305 | echo ' ld $25,%call16(y)($28)' >> conftest.s | |
3306 | echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s | |
3307 | echo '1: jalr $25' >> conftest.s | |
3308 | echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s | |
3309 | echo '1: jalr $25' >> conftest.s | |
3310 | echo ' .end x' >> conftest.s | |
3311 | if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ | |
3312 | && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then | |
3313 | if $gcc_cv_objdump -d conftest.so | grep -q jalr \ | |
3314 | && $gcc_cv_objdump -d conftest.so | grep -q "bal.*<x>"; then | |
3315 | gcc_cv_as_ld_jalr_reloc=yes | |
3316 | fi | |
3317 | fi | |
3318 | rm -f conftest.* | |
3319 | fi | |
3320 | fi | |
3321 | if test $gcc_cv_as_ld_jalr_reloc = yes; then | |
3322 | if test x$target_cpu_default = x; then | |
3323 | target_cpu_default=MASK_RELAX_PIC_CALLS | |
3324 | else | |
3325 | target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" | |
3326 | fi | |
3327 | fi | |
3328 | AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) | |
c4cf26ad | 3329 | |
3330 | AC_CACHE_CHECK([linker for .eh_frame personality relaxation], | |
3331 | [gcc_cv_ld_mips_personality_relaxation], | |
3332 | [gcc_cv_ld_mips_personality_relaxation=no | |
3333 | if test $in_tree_ld = yes ; then | |
3334 | if test "$gcc_cv_gld_major_version" -eq 2 \ | |
3335 | -a "$gcc_cv_gld_minor_version" -ge 21 \ | |
3336 | -o "$gcc_cv_gld_major_version" -gt 2; then | |
3337 | gcc_cv_ld_mips_personality_relaxation=yes | |
3338 | fi | |
3339 | elif test x$gcc_cv_as != x \ | |
3340 | -a x$gcc_cv_ld != x \ | |
3341 | -a x$gcc_cv_readelf != x ; then | |
3342 | cat > conftest.s <<EOF | |
3343 | .cfi_startproc | |
3344 | .cfi_personality 0x80,indirect_ptr | |
3345 | .ent test | |
3346 | test: | |
3347 | nop | |
3348 | .end test | |
3349 | .cfi_endproc | |
3350 | ||
3351 | .section .data,"aw",@progbits | |
3352 | indirect_ptr: | |
3353 | .dc.a personality | |
3354 | EOF | |
3355 | if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ | |
3356 | && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then | |
3357 | if $gcc_cv_readelf -d conftest 2>&1 \ | |
3358 | | grep TEXTREL > /dev/null 2>&1; then | |
3359 | : | |
3360 | elif $gcc_cv_readelf --relocs conftest 2>&1 \ | |
3361 | | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then | |
3362 | : | |
3363 | else | |
3364 | gcc_cv_ld_mips_personality_relaxation=yes | |
3365 | fi | |
3366 | fi | |
3367 | fi | |
3368 | rm -f conftest.s conftest.o conftest]) | |
3369 | if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then | |
3370 | AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, | |
3371 | [Define if your linker can relax absolute .eh_frame personality | |
3372 | pointers into PC-relative form.]) | |
3373 | fi | |
c8aeaa6d | 3374 | ;; |
3375 | esac | |
3376 | ||
3377 | # Mips and HP-UX need the GNU assembler. | |
3378 | # Linux on IA64 might be able to use the Intel assembler. | |
6d6c1801 | 3379 | |
c8aeaa6d | 3380 | case "$target" in |
3381 | mips*-*-* | *-*-hpux* ) | |
6e930e6c | 3382 | if test x$gas_flag = xyes \ |
3383 | || test x"$host" != x"$build" \ | |
3384 | || test ! -x "$gcc_cv_as" \ | |
3385 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
3386 | : | |
3387 | else | |
3388 | echo "*** This configuration requires the GNU assembler" >&2 | |
3389 | exit 1 | |
3390 | fi | |
6d6c1801 | 3391 | ;; |
3392 | esac | |
c8aeaa6d | 3393 | |
142cf471 | 3394 | # ??? Not all targets support dwarf2 debug_line, even within a version |
3395 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
3396 | # info to the output file. So, as supported targets are added to gas 2.11, | |
3397 | # add some instruction here to (also) show we expect this might work. | |
3398 | # ??? Once 2.11 is released, probably need to add first known working | |
3399 | # version to the per-target configury. | |
3400 | case "$target" in | |
549c28fd | 3401 | i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ |
6af9f7ea | 3402 | | x86_64*-*-* | hppa*-*-* | arm*-*-* \ |
10178ded | 3403 | | xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \ |
ae74c491 | 3404 | | spu-*-* | fido*-*-* | m32c-*-*) |
142cf471 | 3405 | insn="nop" |
3406 | ;; | |
15dff672 | 3407 | ia64*-*-* | s390*-*-*) |
142cf471 | 3408 | insn="nop 0" |
3409 | ;; | |
482662fd | 3410 | mmix-*-*) |
3411 | insn="swym 0" | |
3412 | ;; | |
6d6c1801 | 3413 | esac |
3414 | if test x"$insn" != x; then | |
3415 | conftest_s="\ | |
3416 | .file 1 \"conftest.s\" | |
3417 | .loc 1 3 0 | |
3418 | $insn" | |
3419 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
3420 | gcc_cv_as_dwarf2_debug_line, | |
3421 | [elf,2,11,0],, [$conftest_s], | |
1b33a244 | 3422 | [if test x$gcc_cv_objdump != x \ |
3423 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
3424 | | grep debug_line > /dev/null 2>&1; then | |
6d6c1801 | 3425 | gcc_cv_as_dwarf2_debug_line=yes |
3426 | fi]) | |
3427 | ||
3428 | # The .debug_line file table must be in the exact order that | |
3429 | # we specified the files, since these indices are also used | |
3430 | # by DW_AT_decl_file. Approximate this test by testing if | |
3431 | # the assembler bitches if the same index is assigned twice. | |
3432 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
3433 | gcc_cv_as_dwarf2_file_buggy,,, | |
3434 | [ .file 1 "foo.s" | |
3435 | .file 1 "bar.s"]) | |
3436 | ||
3437 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
3438 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
142cf471 | 3439 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
6d6c1801 | 3440 | [Define if your assembler supports dwarf2 .file/.loc directives, |
4a82352a | 3441 | and preserves file table indices exactly as given.]) |
6d6c1801 | 3442 | fi |
3443 | ||
3444 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
3445 | gcc_cv_as_gdwarf2_flag, | |
3446 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
3447 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
3448 | [Define if your assembler supports the --gdwarf2 option.])]) | |
3449 | ||
3450 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
3451 | gcc_cv_as_gstabs_flag, | |
3452 | [elf,2,11,0], [--gstabs], [$insn], | |
3453 | [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
3454 | # and warns about it, but still exits successfully. So check for | |
3455 | # this. | |
3456 | if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
3457 | then : | |
3458 | else gcc_cv_as_gstabs_flag=yes | |
3459 | fi], | |
3460 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
3461 | [Define if your assembler supports the --gstabs option.])]) | |
5f1f2de5 | 3462 | |
3463 | gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
3464 | gcc_cv_as_debug_prefix_map_flag, | |
22ff3bfb | 3465 | [2,18,0], [--debug-prefix-map /a=/b], [$insn],, |
5f1f2de5 | 3466 | [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, |
3467 | [Define if your assembler supports the --debug-prefix-map option.])]) | |
142cf471 | 3468 | fi |
1a6f9700 | 3469 | |
a65d7dd0 | 3470 | gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, |
3471 | ,, | |
3472 | [.lcomm bar,4,16],, | |
3473 | [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
3474 | [Define if your assembler supports .lcomm with an alignment field.])]) | |
3475 | ||
924907a3 | 3476 | AC_ARG_ENABLE(gnu-unique-object, |
3477 | [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on | |
3478 | glibc systems], | |
3479 | [case $enable_gnu_unique_object in | |
3480 | yes | no) ;; | |
3481 | *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. | |
3482 | Valid choices are 'yes' and 'no'.]) ;; | |
3483 | esac], | |
3484 | [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, | |
3485 | [elf,2,19,52],, | |
5219ed35 | 3486 | [.type foo, @gnu_unique_object],, |
924907a3 | 3487 | # Also check for ld.so support, i.e. glibc 2.11 or higher. |
3488 | [if test x$host = x$build -a x$host = x$target && | |
3489 | glibcver=`ldd --version 2>/dev/null`; then | |
3490 | glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"` | |
3491 | glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"` | |
3492 | glibcnum=`expr $glibcmajor \* 1000 + $glibcminor` | |
3493 | if test "$glibcnum" -ge 2011 ; then | |
5219ed35 | 3494 | enable_gnu_unique_object=yes |
924907a3 | 3495 | fi |
5219ed35 | 3496 | fi])]) |
924907a3 | 3497 | if test x$enable_gnu_unique_object = xyes; then |
3498 | AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, | |
3499 | [Define if your assembler supports @gnu_unique_object.]) | |
3500 | fi | |
3501 | ||
a8971681 | 3502 | AC_CACHE_CHECK([assembler for tolerance to line number 0], |
3503 | [gcc_cv_as_line_zero], | |
3504 | [gcc_cv_as_line_zero=no | |
3505 | if test $in_tree_gas = yes; then | |
95cd4953 | 3506 | gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) |
a8971681 | 3507 | elif test "x$gcc_cv_as" != x; then |
3508 | { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
3509 | if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
3510 | test "x`cat conftest.out`" = x | |
3511 | then | |
3512 | gcc_cv_as_line_zero=yes | |
3513 | else | |
3514 | echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
3515 | cat conftest.s >&AS_MESSAGE_LOG_FD | |
3516 | echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
3517 | cat conftest.out >&AS_MESSAGE_LOG_FD | |
3518 | fi | |
3519 | rm -f conftest.o conftest.s conftest.out | |
3520 | fi]) | |
3521 | if test "x$gcc_cv_as_line_zero" = xyes; then | |
3522 | AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
3523 | [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
3524 | fi | |
3525 | ||
0d6378a9 | 3526 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
3527 | gcc_cv_ld_eh_frame_hdr=no | |
7349ace9 | 3528 | if test $in_tree_ld = yes ; then |
0dac358a | 3529 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3530 | && test $in_tree_ld_is_elf = yes; then | |
0d6378a9 | 3531 | gcc_cv_ld_eh_frame_hdr=yes |
3532 | fi | |
3533 | elif test x$gcc_cv_ld != x; then | |
3534 | # Check if linker supports --eh-frame-hdr option | |
3535 | if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
3536 | gcc_cv_ld_eh_frame_hdr=yes | |
3537 | fi | |
3538 | fi | |
fcd42b1e | 3539 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
0d6378a9 | 3540 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
3541 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
3542 | [Define if your linker supports --eh-frame-hdr option.]) | |
3543 | fi | |
3544 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
3545 | ||
c3ce66b0 | 3546 | AC_MSG_CHECKING(linker position independent executable support) |
3547 | gcc_cv_ld_pie=no | |
3548 | if test $in_tree_ld = yes ; then | |
0dac358a | 3549 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3550 | && test $in_tree_ld_is_elf = yes; then | |
c3ce66b0 | 3551 | gcc_cv_ld_pie=yes |
3552 | fi | |
3553 | elif test x$gcc_cv_ld != x; then | |
3554 | # Check if linker supports -pie option | |
3555 | if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
3556 | gcc_cv_ld_pie=yes | |
3557 | fi | |
3558 | fi | |
3559 | if test x"$gcc_cv_ld_pie" = xyes; then | |
3560 | AC_DEFINE(HAVE_LD_PIE, 1, | |
3561 | [Define if your linker supports -pie option.]) | |
3562 | fi | |
3563 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
3564 | ||
0a011112 | 3565 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) |
3566 | gcc_cv_ld_eh_gc_sections=no | |
3567 | if test $in_tree_ld = yes ; then | |
3568 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3569 | && test $in_tree_ld_is_elf = yes; then | |
3570 | gcc_cv_ld_eh_gc_sections=yes | |
3571 | fi | |
3572 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3573 | cat > conftest.s <<EOF | |
3574 | .section .text | |
3575 | .globl _start | |
3576 | .type _start, @function | |
3577 | _start: | |
3578 | .long foo | |
3579 | .size _start, .-_start | |
3580 | .section .text.foo,"ax",@progbits | |
3581 | .type foo, @function | |
3582 | foo: | |
3583 | .long 0 | |
3584 | .size foo, .-foo | |
3585 | .section .gcc_except_table.foo,"a",@progbits | |
3586 | .L0: | |
3587 | .long 0 | |
3588 | .section .eh_frame,"a",@progbits | |
3589 | .long .L0 | |
3590 | EOF | |
3591 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3592 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3593 | | grep "gc-sections option ignored" > /dev/null; then | |
3594 | gcc_cv_ld_eh_gc_sections=no | |
3595 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3596 | gcc_cv_ld_eh_gc_sections=yes | |
c8aaf000 | 3597 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. |
3598 | if test x$gcc_cv_as_comdat_group != xyes; then | |
3599 | gcc_cv_ld_eh_gc_sections=no | |
3600 | cat > conftest.s <<EOF | |
3601 | .section .text | |
3602 | .globl _start | |
3603 | .type _start, @function | |
3604 | _start: | |
3605 | .long foo | |
3606 | .size _start, .-_start | |
3607 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
3608 | .type foo, @function | |
3609 | foo: | |
3610 | .long 0 | |
3611 | .size foo, .-foo | |
3612 | .section .gcc_except_table.foo,"a",@progbits | |
3613 | .L0: | |
3614 | .long 0 | |
3615 | .section .eh_frame,"a",@progbits | |
3616 | .long .L0 | |
3617 | EOF | |
3618 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3619 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3620 | | grep "gc-sections option ignored" > /dev/null; then | |
3621 | gcc_cv_ld_eh_gc_sections=no | |
3622 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3623 | gcc_cv_ld_eh_gc_sections=yes | |
3624 | fi | |
3625 | fi | |
3626 | fi | |
0a011112 | 3627 | fi |
3628 | fi | |
3629 | rm -f conftest.s conftest.o conftest | |
3630 | fi | |
c8aaf000 | 3631 | case "$target" in |
3632 | hppa*-*-linux*) | |
3633 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
3634 | gcc_cv_ld_eh_gc_sections=no | |
3635 | ;; | |
3636 | esac | |
0a011112 | 3637 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then |
3638 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
3639 | [Define if your linker supports garbage collection of | |
3640 | sections in presence of EH frames.]) | |
3641 | fi | |
3642 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
3643 | ||
d8a2ca58 | 3644 | # -------- |
3645 | # UNSORTED | |
3646 | # -------- | |
3647 | ||
11a4b5d2 | 3648 | AC_CACHE_CHECK(linker --as-needed support, |
3649 | gcc_cv_ld_as_needed, | |
3650 | [gcc_cv_ld_as_needed=no | |
6a40149e | 3651 | if test $in_tree_ld = yes ; then |
3652 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3653 | && test $in_tree_ld_is_elf = yes; then | |
3654 | gcc_cv_ld_as_needed=yes | |
3655 | fi | |
3656 | elif test x$gcc_cv_ld != x; then | |
3657 | # Check if linker supports --as-needed and --no-as-needed options | |
3658 | if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
3659 | gcc_cv_ld_as_needed=yes | |
3660 | fi | |
3661 | fi | |
11a4b5d2 | 3662 | ]) |
6a40149e | 3663 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
3664 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
3665 | [Define if your linker supports --as-needed and --no-as-needed options.]) | |
3666 | fi | |
6a40149e | 3667 | |
4de3052c | 3668 | case "$target:$tm_file" in |
3669 | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) | |
66ebfa67 | 3670 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
3671 | gcc_cv_ld_no_dot_syms, | |
3672 | [gcc_cv_ld_no_dot_syms=no | |
3673 | if test $in_tree_ld = yes ; then | |
3674 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
3675 | gcc_cv_ld_no_dot_syms=yes | |
3676 | fi | |
3677 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
3678 | cat > conftest1.s <<EOF | |
3679 | .text | |
3680 | bl .foo | |
3681 | EOF | |
3682 | cat > conftest2.s <<EOF | |
3683 | .section ".opd","aw" | |
3684 | .align 3 | |
3685 | .globl foo | |
3686 | .type foo,@function | |
3687 | foo: | |
3688 | .quad .LEfoo,.TOC.@tocbase,0 | |
3689 | .text | |
3690 | .LEfoo: | |
3691 | blr | |
3692 | .size foo,.-.LEfoo | |
3693 | EOF | |
3694 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3695 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3696 | && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3697 | gcc_cv_ld_no_dot_syms=yes | |
3698 | fi | |
3699 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3700 | fi | |
3701 | ]) | |
3702 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3703 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3704 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3705 | fi | |
3706 | ;; | |
3707 | esac | |
3708 | ||
8271b966 | 3709 | AC_CACHE_CHECK(linker --build-id support, |
3710 | gcc_cv_ld_buildid, | |
3711 | [gcc_cv_ld_buildid=no | |
3712 | if test $in_tree_ld = yes ; then | |
3713 | if test "$gcc_cv_gld_major_version" -eq 2 -a \ | |
3714 | "$gcc_cv_gld_minor_version" -ge 18 -o \ | |
3715 | "$gcc_cv_gld_major_version" -gt 2 \ | |
3716 | && test $in_tree_ld_is_elf = yes; then | |
3717 | gcc_cv_ld_buildid=yes | |
3718 | fi | |
3719 | elif test x$gcc_cv_ld != x; then | |
3720 | if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then | |
3721 | gcc_cv_ld_buildid=yes | |
3722 | fi | |
3723 | fi]) | |
3724 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
3725 | AC_DEFINE(HAVE_LD_BUILDID, 1, | |
3726 | [Define if your linker supports --build-id.]) | |
3727 | fi | |
3728 | ||
3729 | AC_ARG_ENABLE(linker-build-id, | |
3730 | [ --enable-linker-build-id | |
3731 | compiler will always pass --build-id to linker], | |
3732 | [], | |
3733 | enable_linker_build_id=no) | |
3734 | ||
3735 | if test x"$enable_linker_build_id" = xyes; then | |
3736 | if test x"$gcc_cv_ld_buildid" = xyes; then | |
3737 | AC_DEFINE(ENABLE_LD_BUILDID, 1, | |
3738 | [Define if gcc should always pass --build-id to linker.]) | |
3739 | else | |
3740 | AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) | |
3741 | fi | |
3742 | fi | |
3743 | ||
b6bcc48f | 3744 | AC_CACHE_CHECK(linker --sysroot support, |
3745 | gcc_cv_ld_sysroot, | |
3746 | [gcc_cv_ld_sysroot=no | |
3747 | if test $in_tree_ld = yes ; then | |
3748 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
93b26f8a | 3749 | gcc_cv_ld_sysroot=yes |
b6bcc48f | 3750 | fi |
3751 | elif test x$gcc_cv_ld != x; then | |
3752 | if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then | |
3753 | gcc_cv_ld_sysroot=yes | |
3754 | fi | |
3755 | fi]) | |
3756 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
3757 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
3758 | [Define if your linker supports --sysroot.]) | |
3759 | fi | |
3760 | ||
7b6408ee | 3761 | if test x$with_sysroot = x && test x$host = x$target \ |
41c555b5 | 3762 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ |
3763 | && test "$prefix" != "NONE"; then | |
6d6c1801 | 3764 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", |
3765 | [Define to PREFIX/include if cpp should also search that directory.]) | |
759d75c3 | 3766 | fi |
3767 | ||
0d55f4d0 | 3768 | # Test for stack protector support in target C library. |
66740228 | 3769 | AC_CACHE_CHECK(__stack_chk_fail in target C library, |
0d55f4d0 | 3770 | gcc_cv_libc_provides_ssp, |
3771 | [gcc_cv_libc_provides_ssp=no | |
66740228 | 3772 | case "$target" in |
03c8b9d4 | 3773 | *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu) |
0d55f4d0 | 3774 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then |
3775 | if test "x$with_sysroot" = x; then | |
3776 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
e9cef88c | 3777 | elif test "x$with_build_sysroot" != "x"; then |
3778 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
0d55f4d0 | 3779 | elif test "x$with_sysroot" = xyes; then |
3780 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3781 | else | |
3782 | glibc_header_dir="${with_sysroot}/usr/include" | |
3783 | fi | |
3784 | else | |
3785 | glibc_header_dir=/usr/include | |
3786 | fi | |
3787 | # glibc 2.4 and later provides __stack_chk_fail and | |
3788 | # either __stack_chk_guard, or TLS access to stack guard canary. | |
3789 | if test -f $glibc_header_dir/features.h \ | |
3790 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ | |
3791 | $glibc_header_dir/features.h > /dev/null; then | |
3792 | if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ | |
3793 | $glibc_header_dir/features.h > /dev/null; then | |
3794 | gcc_cv_libc_provides_ssp=yes | |
3795 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \ | |
3796 | $glibc_header_dir/features.h > /dev/null \ | |
3797 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ | |
3798 | $glibc_header_dir/features.h > /dev/null; then | |
3799 | gcc_cv_libc_provides_ssp=yes | |
e214b635 | 3800 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ |
3801 | $glibc_header_dir/features.h > /dev/null && \ | |
3802 | test -f $glibc_header_dir/bits/uClibc_config.h && \ | |
3803 | $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ | |
3804 | $glibc_header_dir/bits/uClibc_config.h > /dev/null; then | |
3805 | gcc_cv_libc_provides_ssp=yes | |
0d55f4d0 | 3806 | fi |
e214b635 | 3807 | fi |
66740228 | 3808 | ;; |
75bfea25 | 3809 | *-*-gnu*) |
3810 | # Avoid complicated tests (see | |
3811 | # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
3812 | # simply assert that glibc does provide this, which is true for all | |
3813 | # realistically usable GNU/Hurd configurations. | |
3814 | gcc_cv_libc_provides_ssp=yes;; | |
a85687e8 | 3815 | *-*-darwin* | *-*-freebsd*) |
66740228 | 3816 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], |
3817 | [echo "no __stack_chk_fail on this target"]) | |
3818 | ;; | |
0d55f4d0 | 3819 | *) gcc_cv_libc_provides_ssp=no ;; |
66740228 | 3820 | esac]) |
3821 | ||
0d55f4d0 | 3822 | if test x$gcc_cv_libc_provides_ssp = xyes; then |
3823 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
3824 | [Define if your target C library provides stack protector support]) | |
3825 | fi | |
3826 | ||
2dde0cc6 | 3827 | # Check if TFmode long double should be used by default or not. |
3828 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
3829 | # and later they can use TFmode. | |
3830 | case "$target" in | |
8c3bf67d | 3831 | powerpc*-*-linux* | \ |
3832 | powerpc*-*-gnu* | \ | |
2dde0cc6 | 3833 | sparc*-*-linux* | \ |
3834 | s390*-*-linux* | \ | |
3835 | alpha*-*-linux*) | |
3836 | AC_ARG_WITH(long-double-128, | |
3837 | [ --with-long-double-128 Use 128-bit long double by default.], | |
3838 | gcc_cv_target_ldbl128="$with_long_double_128", | |
3839 | [gcc_cv_target_ldbl128=no | |
3840 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3841 | if test "x$with_sysroot" = x; then | |
3842 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
e9cef88c | 3843 | elif test "x$with_build_sysroot" != "x"; then |
3844 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
2dde0cc6 | 3845 | elif test "x$with_sysroot" = xyes; then |
3846 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3847 | else | |
3848 | glibc_header_dir="${with_sysroot}/usr/include" | |
3849 | fi | |
3850 | else | |
3851 | glibc_header_dir=/usr/include | |
3852 | fi | |
dfce740a | 3853 | changequote(,)dnl |
2dde0cc6 | 3854 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ |
3855 | $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ | |
dfce740a | 3856 | && gcc_cv_target_ldbl128=yes |
3857 | changequote([,])dnl | |
3858 | ]) | |
2dde0cc6 | 3859 | ;; |
3860 | esac | |
3861 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
3862 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
3863 | [Define if TFmode long double should be the default]) | |
3864 | fi | |
3865 | ||
772580ce | 3866 | # Find out what GC implementation we want, or may, use. |
3867 | AC_ARG_WITH(gc, | |
180e93cf | 3868 | [ --with-gc={page,zone} choose the garbage collection mechanism to use |
77eb56d4 | 3869 | with the compiler], |
772580ce | 3870 | [case "$withval" in |
1bb42c87 | 3871 | page) |
772580ce | 3872 | GGC=ggc-$withval |
3873 | ;; | |
1bb42c87 | 3874 | zone) |
3875 | GGC=ggc-$withval | |
3876 | AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3877 | ;; | |
772580ce | 3878 | *) |
3879 | AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3880 | ;; | |
3881 | esac], | |
80eb2355 | 3882 | [GGC=ggc-page]) |
772580ce | 3883 | AC_SUBST(GGC) |
3884 | echo "Using $GGC for garbage collection." | |
3885 | ||
7ab76cec | 3886 | # Libraries to use on the host. This will normally be set by the top |
3887 | # level Makefile. Here we simply capture the value for our Makefile. | |
3888 | if test -z "${HOST_LIBS+set}"; then | |
3889 | HOST_LIBS= | |
3890 | fi | |
3891 | AC_SUBST(HOST_LIBS) | |
3892 | ||
add841d2 | 3893 | # Use the system's zlib library. |
f357ac87 | 3894 | zlibdir=-L../zlib |
3895 | zlibinc="-I\$(srcdir)/../zlib" | |
add841d2 | 3896 | AC_ARG_WITH(system-zlib, |
3897 | [ --with-system-zlib use installed libz], | |
3898 | zlibdir= | |
3899 | zlibinc= | |
3900 | ) | |
3901 | AC_SUBST(zlibdir) | |
3902 | AC_SUBST(zlibinc) | |
3903 | ||
c5ab9ed2 | 3904 | dnl Very limited version of automake's enable-maintainer-mode |
3905 | ||
3906 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3907 | dnl maintainer-mode is disabled by default | |
3908 | AC_ARG_ENABLE(maintainer-mode, | |
77eb56d4 | 3909 | [ --enable-maintainer-mode |
3910 | enable make rules and dependencies not useful | |
c5ab9ed2 | 3911 | (and sometimes confusing) to the casual installer], |
3912 | maintainer_mode=$enableval, | |
3913 | maintainer_mode=no) | |
3914 | ||
3915 | AC_MSG_RESULT($maintainer_mode) | |
3916 | ||
3917 | if test "$maintainer_mode" = "yes"; then | |
3918 | MAINT='' | |
3919 | else | |
3920 | MAINT='#' | |
3921 | fi | |
3922 | AC_SUBST(MAINT)dnl | |
3923 | ||
d8a2ca58 | 3924 | # -------------- |
3925 | # Language hooks | |
3926 | # -------------- | |
3927 | ||
a4ac0141 | 3928 | # Make empty files to contain the specs and options for each language. |
3929 | # Then add #include lines to for a compiler that has specs and/or options. | |
3930 | ||
26526d23 | 3931 | subdirs= |
3272db82 | 3932 | lang_opt_files= |
a4ac0141 | 3933 | lang_specs_files= |
c3cc26e1 | 3934 | lang_tree_files= |
a4ac0141 | 3935 | # These (without "all_") are set in each config-lang.in. |
3936 | # `language' must be a single word so is spelled singularly. | |
3937 | all_languages= | |
a4ac0141 | 3938 | all_compilers= |
9a8d280d | 3939 | all_outputs='Makefile gccbug' |
a4ac0141 | 3940 | # List of language makefile fragments. |
a455468e | 3941 | all_lang_makefrags= |
3942 | # List of language subdirectory makefiles. Deprecated. | |
a4ac0141 | 3943 | all_lang_makefiles= |
570af75a | 3944 | # Additional files for gengtype |
eb1bd38b | 3945 | all_gtfiles="$target_gtfiles" |
a4ac0141 | 3946 | |
26526d23 | 3947 | # These are the languages that are set in --enable-languages, |
3948 | # and are available in the GCC tree. | |
3949 | all_selected_languages= | |
3950 | ||
a4ac0141 | 3951 | # Add the language fragments. |
3952 | # Languages are added via two mechanisms. Some information must be | |
3953 | # recorded in makefile variables, these are defined in config-lang.in. | |
3954 | # We accumulate them and plug them into the main Makefile. | |
3955 | # The other mechanism is a set of hooks for each of the main targets | |
3956 | # like `clean', `install', etc. | |
3957 | ||
a4ac0141 | 3958 | language_hooks="Make-hooks" |
3959 | ||
26526d23 | 3960 | for lang in ${srcdir}/*/config-lang.in |
a4ac0141 | 3961 | do |
26526d23 | 3962 | changequote(,)dnl |
5dee13c2 | 3963 | test "$lang" = "${srcdir}/*/config-lang.in" && continue |
3964 | ||
26526d23 | 3965 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` |
3966 | if test "x$lang_alias" = x | |
3967 | then | |
3968 | echo "$lang doesn't set \$language." 1>&2 | |
3969 | exit 1 | |
3970 | fi | |
3971 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
3972 | subdirs="$subdirs $subdir" | |
de4e1ab6 | 3973 | |
3974 | # $gcc_subdir is where the gcc integration files are to be found | |
3975 | # for a language, both for internal compiler purposes (compiler | |
3976 | # sources implementing front-end to GCC tree converters), and for | |
3977 | # build infrastructure purposes (Make-lang.in, etc.) | |
3978 | # | |
3979 | # This will be <subdir> (relative to $srcdir) if a line like | |
3980 | # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
3981 | # is found in <langdir>/config-lang.in, and will remain <langdir> | |
3982 | # otherwise. | |
3983 | # | |
3984 | # Except for the language alias (fetched above), the regular | |
3985 | # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
3986 | # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
3987 | # only this and the language alias. | |
3988 | ||
3989 | gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
3990 | if [ "$gcc_subdir" = "" ]; then | |
3991 | gcc_subdir="$subdir" | |
3992 | fi | |
3993 | ||
26526d23 | 3994 | case ",$enable_languages," in |
3995 | *,$lang_alias,*) | |
3996 | all_selected_languages="$all_selected_languages $lang_alias" | |
de4e1ab6 | 3997 | if test -f $srcdir/$gcc_subdir/lang-specs.h; then |
3998 | lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
26526d23 | 3999 | fi |
4000 | ;; | |
4001 | esac | |
4002 | changequote([,])dnl | |
4003 | ||
26526d23 | 4004 | language= |
4005 | boot_language= | |
4006 | compilers= | |
26526d23 | 4007 | outputs= |
4008 | gtfiles= | |
5dee13c2 | 4009 | subdir_requires= |
de4e1ab6 | 4010 | . ${srcdir}/$gcc_subdir/config-lang.in |
26526d23 | 4011 | if test "x$language" = x |
4012 | then | |
de4e1ab6 | 4013 | echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 |
26526d23 | 4014 | exit 1 |
4015 | fi | |
5dee13c2 | 4016 | |
4017 | ok=: | |
4018 | case ",$enable_languages," in | |
4019 | *,$lang_alias,*) ;; | |
4020 | *) | |
4021 | for i in $subdir_requires; do | |
3891e7d9 | 4022 | test -f "${srcdir}/$i/config-lang.in" && continue |
5dee13c2 | 4023 | ok=false |
4024 | break | |
4025 | done | |
4026 | ;; | |
4027 | esac | |
4028 | $ok || continue | |
4029 | ||
de4e1ab6 | 4030 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" |
4031 | if test -f $srcdir/$gcc_subdir/lang.opt; then | |
4032 | lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
5dee13c2 | 4033 | fi |
de4e1ab6 | 4034 | if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then |
4035 | lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
5dee13c2 | 4036 | fi |
de4e1ab6 | 4037 | if test -f ${srcdir}/$gcc_subdir/Makefile.in |
4038 | then all_lang_makefiles="$gcc_subdir/Makefile" | |
26526d23 | 4039 | fi |
4040 | all_languages="$all_languages $language" | |
26526d23 | 4041 | all_compilers="$all_compilers $compilers" |
26526d23 | 4042 | all_outputs="$all_outputs $outputs" |
570af75a | 4043 | all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" |
7bfefa9d | 4044 | case ",$enable_languages," in |
4045 | *,lto,*) | |
4046 | AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) | |
4047 | enable_lto=yes | |
4048 | AC_SUBST(enable_lto) | |
4049 | ;; | |
4050 | *) ;; | |
4051 | esac | |
a4ac0141 | 4052 | done |
4053 | ||
776c30b8 | 4054 | # Pick up gtfiles for c |
4055 | gtfiles= | |
776c30b8 | 4056 | . ${srcdir}/c-config-lang.in |
570af75a | 4057 | all_gtfiles="$all_gtfiles [[c]] $gtfiles" |
776c30b8 | 4058 | |
21fa82cb | 4059 | check_languages= |
26526d23 | 4060 | for language in $all_selected_languages |
21fa82cb | 4061 | do |
26526d23 | 4062 | check_languages="$check_languages check-$language" |
21fa82cb | 4063 | done |
4064 | ||
d5cd09c5 | 4065 | # We link each language in with a set of hooks, reached indirectly via |
26526d23 | 4066 | # lang.${target}. Only do so for selected languages. |
a4ac0141 | 4067 | |
4068 | rm -f Make-hooks | |
4069 | touch Make-hooks | |
ae6555f9 | 4070 | target_list="all.cross start.encap rest.encap tags \ |
ba5147c6 | 4071 | install-common install-man install-info install-pdf dvi pdf \ |
4072 | html uninstall info man srcextra srcman srcinfo \ | |
c02b6f4e | 4073 | mostlyclean clean distclean maintainer-clean install-plugin" |
26526d23 | 4074 | |
a4ac0141 | 4075 | for t in $target_list |
4076 | do | |
4077 | x= | |
26526d23 | 4078 | for lang in $all_selected_languages |
a4ac0141 | 4079 | do |
26526d23 | 4080 | x="$x $lang.$t" |
a4ac0141 | 4081 | done |
4082 | echo "lang.$t: $x" >> Make-hooks | |
4083 | done | |
4084 | ||
d8a2ca58 | 4085 | # -------- |
4086 | # UNSORTED | |
4087 | # -------- | |
4088 | ||
49d87238 | 4089 | # Create .gdbinit. |
80a1cc00 | 4090 | |
49d87238 | 4091 | echo "dir ." > .gdbinit |
4092 | echo "dir ${srcdir}" >> .gdbinit | |
4093 | if test x$gdb_needs_out_file_path = xyes | |
4094 | then | |
4095 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
4096 | fi | |
4097 | if test "x$subdirs" != x; then | |
4098 | for s in $subdirs | |
4099 | do | |
4100 | echo "dir ${srcdir}/$s" >> .gdbinit | |
4101 | done | |
80a1cc00 | 4102 | fi |
49d87238 | 4103 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
80a1cc00 | 4104 | |
fc5f9e0c | 4105 | gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' |
f22b529a | 4106 | AC_SUBST(gcc_tooldir) |
066520ea | 4107 | AC_SUBST(dollar) |
f22b529a | 4108 | |
074386b8 | 4109 | # Find a directory in which to install a shared libgcc. |
4110 | ||
4111 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
77eb56d4 | 4112 | [ --enable-version-specific-runtime-libs |
4113 | specify that runtime libraries should be | |
4114 | installed in a compiler-specific directory]) | |
074386b8 | 4115 | |
4724fbab | 4116 | AC_ARG_WITH(slibdir, |
85690e4d | 4117 | [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]], |
4724fbab | 4118 | slibdir="$with_slibdir", |
4119 | if test "${enable_version_specific_runtime_libs+set}" = set; then | |
074386b8 | 4120 | slibdir='$(libsubdir)' |
4724fbab | 4121 | elif test "$host" != "$target"; then |
074386b8 | 4122 | slibdir='$(build_tooldir)/lib' |
4123 | else | |
4724fbab | 4124 | slibdir='$(libdir)' |
4125 | fi) | |
074386b8 | 4126 | AC_SUBST(slibdir) |
4127 | ||
01dc27ef | 4128 | # Substitute configuration variables |
4129 | AC_SUBST(subdirs) | |
776c30b8 | 4130 | AC_SUBST(srcdir) |
01dc27ef | 4131 | AC_SUBST(all_compilers) |
1f3233d1 | 4132 | AC_SUBST(all_gtfiles) |
a455468e | 4133 | AC_SUBST(all_lang_makefrags) |
434bb88d | 4134 | AC_SUBST(all_lang_makefiles) |
4135 | AC_SUBST(all_languages) | |
26526d23 | 4136 | AC_SUBST(all_selected_languages) |
434bb88d | 4137 | AC_SUBST(build_exeext) |
4138 | AC_SUBST(build_install_headers_dir) | |
4139 | AC_SUBST(build_xm_file_list) | |
4dcab8b7 | 4140 | AC_SUBST(build_xm_include_list) |
83b8e55b | 4141 | AC_SUBST(build_xm_defines) |
fbf9447e | 4142 | AC_SUBST(build_file_translate) |
21fa82cb | 4143 | AC_SUBST(check_languages) |
434bb88d | 4144 | AC_SUBST(cpp_install_dir) |
a455468e | 4145 | AC_SUBST(xmake_file) |
4146 | AC_SUBST(tmake_file) | |
f555bf81 | 4147 | AC_SUBST(TM_ENDIAN_CONFIG) |
4148 | AC_SUBST(TM_MULTILIB_CONFIG) | |
4149 | AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) | |
69eb04f7 | 4150 | AC_SUBST(extra_gcc_objs) |
434bb88d | 4151 | AC_SUBST(extra_headers_list) |
01dc27ef | 4152 | AC_SUBST(extra_objs) |
434bb88d | 4153 | AC_SUBST(extra_parts) |
4154 | AC_SUBST(extra_passes) | |
4155 | AC_SUBST(extra_programs) | |
434bb88d | 4156 | AC_SUBST(float_h_file) |
9371935c | 4157 | AC_SUBST(gcc_config_arguments) |
434bb88d | 4158 | AC_SUBST(gcc_gxx_include_dir) |
434bb88d | 4159 | AC_SUBST(host_exeext) |
01dc27ef | 4160 | AC_SUBST(host_xm_file_list) |
4dcab8b7 | 4161 | AC_SUBST(host_xm_include_list) |
83b8e55b | 4162 | AC_SUBST(host_xm_defines) |
b197fbcf | 4163 | AC_SUBST(out_host_hook_obj) |
434bb88d | 4164 | AC_SUBST(install) |
3272db82 | 4165 | AC_SUBST(lang_opt_files) |
434bb88d | 4166 | AC_SUBST(lang_specs_files) |
c3cc26e1 | 4167 | AC_SUBST(lang_tree_files) |
01dc27ef | 4168 | AC_SUBST(local_prefix) |
434bb88d | 4169 | AC_SUBST(md_file) |
4170 | AC_SUBST(objc_boehm_gc) | |
4171 | AC_SUBST(out_file) | |
4172 | AC_SUBST(out_object_file) | |
434bb88d | 4173 | AC_SUBST(thread_file) |
4174 | AC_SUBST(tm_file_list) | |
4dcab8b7 | 4175 | AC_SUBST(tm_include_list) |
8d4f8d46 | 4176 | AC_SUBST(tm_defines) |
83b8e55b | 4177 | AC_SUBST(tm_p_file_list) |
4dcab8b7 | 4178 | AC_SUBST(tm_p_include_list) |
4179 | AC_SUBST(xm_file_list) | |
4180 | AC_SUBST(xm_include_list) | |
8b24e546 | 4181 | AC_SUBST(xm_defines) |
f3449a3c | 4182 | AC_SUBST(use_gcc_stdint) |
8daa9e98 | 4183 | AC_SUBST(c_target_objs) |
4184 | AC_SUBST(cxx_target_objs) | |
32006f36 | 4185 | AC_SUBST(fortran_target_objs) |
83b8e55b | 4186 | AC_SUBST(target_cpu_default) |
01dc27ef | 4187 | |
01dc27ef | 4188 | AC_SUBST_FILE(language_hooks) |
4189 | ||
ba4dfdb7 | 4190 | # Echo link setup. |
4191 | if test x${build} = x${host} ; then | |
4192 | if test x${host} = x${target} ; then | |
4193 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
4194 | else | |
4195 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
4196 | echo " from ${host} to ${target}." 1>&2 | |
4197 | fi | |
01dc27ef | 4198 | else |
ba4dfdb7 | 4199 | if test x${host} = x${target} ; then |
4200 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
4201 | echo " for ${target}." 1>&2 | |
4202 | else | |
4203 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
4204 | echo " from ${host} to ${target}." 1>&2 | |
4205 | fi | |
01dc27ef | 4206 | fi |
4207 | ||
4ee9c684 | 4208 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
4209 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
4210 | ||
7601a55c | 4211 | case "${GMPLIBS}" in |
4212 | *-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;; | |
4213 | esac | |
4214 | ||
255b6be7 | 4215 | AC_ARG_VAR(PPLLIBS,[How to link PPL]) |
4216 | AC_ARG_VAR(PPLINC,[How to find PPL include files]) | |
4217 | ||
4218 | AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG]) | |
4219 | AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files]) | |
4220 | if test "x${CLOOGLIBS}" != "x" ; then | |
4221 | AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.]) | |
4222 | fi | |
4223 | ||
7bfefa9d | 4224 | AC_ARG_VAR(LIBELFLIBS,[How to link libelf]) |
4225 | AC_ARG_VAR(LIBELFINC,[How to find libelf include files]) | |
4226 | if test "x${LIBELFLIBS}" != "x" ; then | |
4227 | AC_DEFINE(HAVE_libelf, 1, [Define if libelf is in use.]) | |
4228 | fi | |
4229 | ||
9227b6fc | 4230 | # Check for plugin support |
4231 | AC_ARG_ENABLE(plugin, | |
4232 | [ --enable-plugin enable plugin support], | |
4233 | enable_plugin=$enableval, | |
4234 | enable_plugin=yes; default_plugin=yes) | |
4235 | ||
4236 | pluginlibs= | |
4237 | if test x"$enable_plugin" = x"yes"; then | |
4238 | # Check that the host supports -rdynamic and -ldl | |
4239 | have_rdynamic=no | |
4240 | have_dl=no | |
4241 | saved_LDFLAGS="$LDFLAGS" | |
4242 | saved_LIBS="$LIBS" | |
4243 | LIBS= | |
4244 | ||
4245 | # Check -rdynamic | |
4246 | LDFLAGS="$LDFLAGS -rdynamic" | |
4247 | AC_MSG_CHECKING([for -rdynamic]) | |
4248 | AC_TRY_LINK([],[return 0;], | |
4249 | [AC_MSG_RESULT([yes]); have_rdynamic=yes], | |
4250 | [AC_MSG_RESULT([no])]) | |
4251 | if test x"$have_rdynamic" = x"yes" ; then | |
4252 | pluginlibs="-rdynamic" | |
4253 | fi | |
4254 | ||
4255 | # Check -ldl | |
295fba81 | 4256 | LIBS="$LIBS -ldl" |
9227b6fc | 4257 | AC_MSG_CHECKING([for -ldl]) |
4258 | AC_TRY_LINK( | |
4259 | [#include <dlfcn.h>], | |
4260 | [volatile int f = 0; if (f) dlopen ("dummy", 0);], | |
4261 | [AC_MSG_RESULT([yes]); have_dl=yes], | |
4262 | [AC_MSG_RESULT([no])]) | |
4263 | if test x"$have_dl" = x"yes"; then | |
4264 | pluginlibs="$pluginlibs -ldl" | |
4265 | fi | |
4266 | ||
4267 | # Check that we can build shared objects with -fPIC -shared | |
4268 | LDFLAGS="$LDFLAGS -fPIC -shared" | |
4269 | AC_MSG_CHECKING([for -fPIC -shared]) | |
4270 | AC_TRY_LINK( | |
4271 | [extern int X;],[return X == 0;], | |
4272 | [AC_MSG_RESULT([yes]); have_pic_shared=yes], | |
4273 | [AC_MSG_RESULT([no]); have_pic_shared=no]) | |
4274 | if test x"$have_pic_shared" != x"yes"; then | |
4275 | pluginlibs= | |
4276 | enable_plugin=no | |
4277 | fi | |
4278 | ||
4279 | # If plugin support had been requested but not available, fail. | |
4280 | if test x"$enable_plugin" = x"no" ; then | |
4281 | if test x"$default_plugin" != x"yes"; then | |
4282 | AC_MSG_ERROR([ | |
4283 | Building GCC with plugin support requires a host that supports | |
4284 | -fPIC, -shared, -ldl and -rdynamic.]) | |
4285 | fi | |
4286 | fi | |
4287 | ||
4288 | LDFLAGS="$saved_LDFLAGS" | |
4289 | LIBS="$saved_LIBS" | |
4290 | fi | |
4291 | ||
4292 | AC_SUBST(pluginlibs) | |
4293 | AC_SUBST(enable_plugin) | |
4294 | if test x"$enable_plugin" = x"yes"; then | |
4295 | AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) | |
4296 | fi | |
4297 | ||
01dc27ef | 4298 | # Configure the subdirectories |
4299 | # AC_CONFIG_SUBDIRS($subdirs) | |
4300 | ||
4301 | # Create the Makefile | |
4fc83d8e | 4302 | # and configure language subdirectories |
1211e6bc | 4303 | AC_CONFIG_FILES($all_outputs) |
4304 | ||
4305 | AC_CONFIG_COMMANDS([default], | |
805483cf | 4306 | [ |
00ba4d3e | 4307 | case ${CONFIG_HEADERS} in |
4308 | *auto-host.h:config.in*) | |
4309 | echo > cstamp-h ;; | |
805483cf | 4310 | esac |
a455468e | 4311 | # Make sure all the subdirs exist. |
524a54cf | 4312 | for d in $subdirs doc build |
a455468e | 4313 | do |
a455468e | 4314 | test -d $d || mkdir $d |
a455468e | 4315 | done |
a1a7e9d5 | 4316 | ], |
26be379c | 4317 | [subdirs='$subdirs']) |
1211e6bc | 4318 | AC_OUTPUT |