Mercurial > hg > CbC > CbC_gcc
comparison gcc/configure.ac @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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children | 11a6cbe2d14c 855418dad1a3 |
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1 # configure.ac for GCC | |
2 # Process this file with autoconf to generate a configuration script. | |
3 | |
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, | |
5 # 2007, 2008 Free Software Foundation, Inc. | |
6 | |
7 #This file is part of GCC. | |
8 | |
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 | |
11 #Software Foundation; either version 3, or (at your option) any later | |
12 #version. | |
13 | |
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. | |
18 | |
19 #You should have received a copy of the GNU General Public License | |
20 #along with GCC; see the file COPYING3. If not see | |
21 #<http://www.gnu.org/licenses/>. | |
22 | |
23 # -------------------------------- | |
24 # Initialization and sanity checks | |
25 # -------------------------------- | |
26 | |
27 AC_PREREQ(2.59) | |
28 AC_INIT | |
29 AC_CONFIG_SRCDIR(tree.c) | |
30 AC_CONFIG_HEADER(auto-host.h:config.in) | |
31 | |
32 gcc_version=`cat $srcdir/BASE-VER` | |
33 | |
34 # Determine the host, build, and target systems | |
35 AC_CANONICAL_BUILD | |
36 AC_CANONICAL_HOST | |
37 AC_CANONICAL_TARGET | |
38 | |
39 # Determine the noncanonical target name, for directory use. | |
40 ACX_NONCANONICAL_TARGET | |
41 | |
42 # Determine the target- and build-specific subdirectories | |
43 GCC_TOPLEV_SUBDIRS | |
44 | |
45 # Set program_transform_name | |
46 AC_ARG_PROGRAM | |
47 | |
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 | |
71 *** building gcc. Please change the environment variable | |
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 "$gcc_exec_prefix_setting" != "ok"; then | |
95 AC_MSG_ERROR([ | |
96 *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
97 *** building gcc. Please change the environment variable | |
98 *** and run configure again.]) | |
99 fi | |
100 | |
101 # ----------- | |
102 # Directories | |
103 # ----------- | |
104 | |
105 # Specify the local prefix | |
106 local_prefix= | |
107 AC_ARG_WITH(local-prefix, | |
108 [ --with-local-prefix=DIR specifies directory to put local include], | |
109 [case "${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 | |
134 # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. | |
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='${libsubdir}/include/c++' | |
138 else | |
139 libstdcxx_incdir='include/c++/$(version)' | |
140 if test x$host != x$target; then | |
141 libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
142 fi | |
143 gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir" | |
144 fi | |
145 fi | |
146 | |
147 AC_ARG_WITH(cpp_install_dir, | |
148 [ --with-cpp-install-dir=DIR | |
149 install the user visible C preprocessor in DIR | |
150 (relative to PREFIX) as well as PREFIX/bin], | |
151 [if test x$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 | |
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 | |
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 "$generated_files_in_srcdir" = "yes"; then | |
176 GENINSRC='' | |
177 else | |
178 GENINSRC='#' | |
179 fi | |
180 AC_SUBST(GENINSRC) | |
181 | |
182 # ------------------- | |
183 # Find default linker | |
184 # ------------------- | |
185 | |
186 # With GNU ld | |
187 AC_ARG_WITH(gnu-ld, | |
188 [ --with-gnu-ld arrange to work with GNU ld.], | |
189 gnu_ld_flag="$with_gnu_ld", | |
190 gnu_ld_flag=no) | |
191 | |
192 # With pre-defined ld | |
193 AC_ARG_WITH(ld, | |
194 [ --with-ld arrange to use the specified ld (full pathname)], | |
195 DEFAULT_LINKER="$with_ld") | |
196 if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
197 if test ! -x "$DEFAULT_LINKER"; then | |
198 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) | |
199 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
200 gnu_ld_flag=yes | |
201 fi | |
202 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", | |
203 [Define to enable the use of a default linker.]) | |
204 fi | |
205 | |
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, $gnu_ld, [Define if using GNU ld.]) | |
208 | |
209 AC_MSG_CHECKING([whether a default linker was specified]) | |
210 if test x"${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 ($DEFAULT_LINKER - GNU ld)]) | |
215 fi | |
216 else | |
217 AC_MSG_RESULT(no) | |
218 fi | |
219 | |
220 # With demangler in GNU ld | |
221 AC_ARG_WITH(demangler-in-ld, | |
222 [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
223 demangler_in_ld="$with_demangler_in_ld", | |
224 demangler_in_ld=no) | |
225 | |
226 # ---------------------- | |
227 # Find default assembler | |
228 # ---------------------- | |
229 | |
230 # With GNU as | |
231 AC_ARG_WITH(gnu-as, | |
232 [ --with-gnu-as arrange to work with GNU as], | |
233 gas_flag="$with_gnu_as", | |
234 gas_flag=no) | |
235 | |
236 AC_ARG_WITH(as, | |
237 [ --with-as arrange to use the specified as (full pathname)], | |
238 DEFAULT_ASSEMBLER="$with_as") | |
239 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
240 if test ! -x "$DEFAULT_ASSEMBLER"; then | |
241 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) | |
242 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
243 gas_flag=yes | |
244 fi | |
245 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", | |
246 [Define to enable the use of a default assembler.]) | |
247 fi | |
248 | |
249 gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi` | |
250 AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.]) | |
251 | |
252 AC_MSG_CHECKING([whether a default assembler was specified]) | |
253 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
254 if test x"$gas_flag" = x"no"; then | |
255 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
256 else | |
257 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) | |
258 fi | |
259 else | |
260 AC_MSG_RESULT(no) | |
261 fi | |
262 | |
263 # --------------- | |
264 # Find C compiler | |
265 # --------------- | |
266 | |
267 # If a non-executable a.out is present (e.g. created by GNU as above even if | |
268 # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
269 # file, even when creating an executable, so an execution test fails. | |
270 # Remove possible default executable files to avoid this. | |
271 # | |
272 # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
273 # Autoconf includes it. | |
274 rm -f a.out a.exe b.out | |
275 | |
276 # Find the native compiler | |
277 AC_PROG_CC | |
278 AM_PROG_CC_C_O | |
279 ACX_PROG_GNAT([-I"$srcdir"/ada]) | |
280 | |
281 # autoconf is lame and doesn't give us any substitution variable for this. | |
282 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then | |
283 NO_MINUS_C_MINUS_O=yes | |
284 else | |
285 OUTPUT_OPTION='-o $@' | |
286 fi | |
287 AC_SUBST(NO_MINUS_C_MINUS_O) | |
288 AC_SUBST(OUTPUT_OPTION) | |
289 | |
290 # Remove the -O2: for historical reasons, unless bootstrapping we prefer | |
291 # optimizations to be activated explicitly by the toplevel. | |
292 case "$CC" in | |
293 */prev-gcc/xgcc*) ;; | |
294 *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;; | |
295 esac | |
296 AC_SUBST(CFLAGS) | |
297 | |
298 # ------------------------- | |
299 # Check C compiler features | |
300 # ------------------------- | |
301 | |
302 AC_USE_SYSTEM_EXTENSIONS | |
303 AC_PROG_CPP | |
304 AC_C_INLINE | |
305 | |
306 # sizeof(char) is 1 by definition. | |
307 AC_CHECK_SIZEOF(void *) | |
308 AC_CHECK_SIZEOF(short) | |
309 AC_CHECK_SIZEOF(int) | |
310 AC_CHECK_SIZEOF(long) | |
311 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) | |
312 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) | |
313 | |
314 # --------------------- | |
315 # Warnings and checking | |
316 # --------------------- | |
317 | |
318 # Check $CC warning features (if it's GCC). | |
319 # We want to use -pedantic, but we don't want warnings about | |
320 # * 'long long' | |
321 # * variadic macros | |
322 # * overlong strings | |
323 # So, we only use -pedantic if we can disable those warnings. | |
324 | |
325 ACX_PROG_CC_WARNING_OPTS( | |
326 m4_quote(m4_do([-W -Wall -Wwrite-strings -Wstrict-prototypes ], | |
327 [-Wmissing-prototypes -Wcast-qual])), [loose_warn]) | |
328 ACX_PROG_CC_WARNING_OPTS( | |
329 m4_quote(m4_do([-Wold-style-definition -Wc++-compat ], | |
330 [-Wmissing-format-attribute])), [strict_warn]) | |
331 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC( | |
332 m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], | |
333 [-Wno-overlength-strings])), [strict_warn]) | |
334 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn]) | |
335 | |
336 # The above macros do nothing if the compiler is not GCC. However, the | |
337 # Makefile has more goo to add other flags, so this variabl is used to | |
338 # enables warnings only for GCC. | |
339 warn_cflags= | |
340 if test "x$GCC" = "xyes"; then | |
341 warn_cflags='$(GCC_WARN_CFLAGS)' | |
342 fi | |
343 AC_SUBST(warn_cflags) | |
344 | |
345 # Enable expensive internal checks | |
346 is_release= | |
347 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
348 is_release=yes | |
349 fi | |
350 | |
351 AC_ARG_ENABLE(checking, | |
352 [ --enable-checking[=LIST] | |
353 enable expensive run-time checks. With LIST, | |
354 enable only specific categories of checks. | |
355 Categories are: yes,no,all,none,release. | |
356 Flags are: assert,df,fold,gc,gcac,gimple,misc, | |
357 rtlflag,rtl,runtime,tree,valgrind,types.], | |
358 [ac_checking_flags="${enableval}"],[ | |
359 # Determine the default checks. | |
360 if test x$is_release = x ; then | |
361 ac_checking_flags=yes | |
362 else | |
363 ac_checking_flags=release | |
364 fi]) | |
365 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," | |
366 for check in release $ac_checking_flags | |
367 do | |
368 case $check in | |
369 # these set all the flags to specific states | |
370 yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ; | |
371 ac_fold_checking= ; ac_gc_checking=1 ; | |
372 ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ; | |
373 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; | |
374 ac_tree_checking=1 ; ac_valgrind_checking= ; | |
375 ac_types_checking=1 ;; | |
376 no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ; | |
377 ac_fold_checking= ; ac_gc_checking= ; | |
378 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; | |
379 ac_rtlflag_checking= ; ac_runtime_checking= ; | |
380 ac_tree_checking= ; ac_valgrind_checking= ; | |
381 ac_types_checking= ;; | |
382 all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ; | |
383 ac_fold_checking=1 ; ac_gc_checking=1 ; | |
384 ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ; | |
385 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; | |
386 ac_tree_checking=1 ; ac_valgrind_checking= ; | |
387 ac_types_checking=1 ;; | |
388 release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ; | |
389 ac_fold_checking= ; ac_gc_checking= ; | |
390 ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ; | |
391 ac_rtlflag_checking= ; ac_runtime_checking=1 ; | |
392 ac_tree_checking= ; ac_valgrind_checking= ; | |
393 ac_types_checking= ;; | |
394 # these enable particular checks | |
395 assert) ac_assert_checking=1 ;; | |
396 df) ac_df_checking=1 ;; | |
397 fold) ac_fold_checking=1 ;; | |
398 gc) ac_gc_checking=1 ;; | |
399 gcac) ac_gc_always_collect=1 ;; | |
400 gimple) ac_gimple_checking=1 ;; | |
401 misc) ac_checking=1 ;; | |
402 rtl) ac_rtl_checking=1 ;; | |
403 rtlflag) ac_rtlflag_checking=1 ;; | |
404 runtime) ac_runtime_checking=1 ;; | |
405 tree) ac_tree_checking=1 ;; | |
406 types) ac_types_checking=1 ;; | |
407 valgrind) ac_valgrind_checking=1 ;; | |
408 *) AC_MSG_ERROR(unknown check category $check) ;; | |
409 esac | |
410 done | |
411 IFS="$ac_save_IFS" | |
412 | |
413 nocommon_flag="" | |
414 if test x$ac_checking != x ; then | |
415 AC_DEFINE(ENABLE_CHECKING, 1, | |
416 [Define if you want more run-time sanity checks. This one gets a grab | |
417 bag of miscellaneous but relatively cheap checks.]) | |
418 nocommon_flag=-fno-common | |
419 fi | |
420 AC_SUBST(nocommon_flag) | |
421 if test x$ac_df_checking != x ; then | |
422 AC_DEFINE(ENABLE_DF_CHECKING, 1, | |
423 [Define if you want more run-time sanity checks for dataflow.]) | |
424 fi | |
425 if test x$ac_assert_checking != x ; then | |
426 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
427 [Define if you want assertions enabled. This is a cheap check.]) | |
428 fi | |
429 if test x$ac_gimple_checking != x ; then | |
430 AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1, | |
431 [Define if you want operations on GIMPLE (the basic data structure of | |
432 the high-level optimizers) to be checked for dynamic type safety at | |
433 runtime. This is moderately expensive.]) | |
434 fi | |
435 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) | |
436 if test x$ac_runtime_checking != x ; then | |
437 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
438 [Define if you want runtime assertions enabled. This is a cheap check.]) | |
439 fi | |
440 if test x$ac_tree_checking != x ; then | |
441 AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
442 [Define if you want all operations on trees (the basic data | |
443 structure of the front ends) to be checked for dynamic type safety | |
444 at runtime. This is moderately expensive. The tree browser debugging | |
445 routines will also be enabled by this option. | |
446 ]) | |
447 TREEBROWSER=tree-browser.o | |
448 fi | |
449 if test x$ac_types_checking != x ; then | |
450 AC_DEFINE(ENABLE_TYPES_CHECKING, 1, | |
451 [Define if you want all gimple types to be verified after gimplifiation. | |
452 This is cheap. | |
453 ]) | |
454 fi | |
455 AC_SUBST(TREEBROWSER) | |
456 if test x$ac_rtl_checking != x ; then | |
457 AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
458 [Define if you want all operations on RTL (the basic data structure | |
459 of the optimizer and back end) to be checked for dynamic type safety | |
460 at runtime. This is quite expensive.]) | |
461 fi | |
462 if test x$ac_rtlflag_checking != x ; then | |
463 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
464 [Define if you want RTL flag accesses to be checked against the RTL | |
465 codes that are supported for each access macro. This is relatively | |
466 cheap.]) | |
467 fi | |
468 if test x$ac_gc_checking != x ; then | |
469 AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
470 [Define if you want the garbage collector to do object poisoning and | |
471 other memory allocation checks. This is quite expensive.]) | |
472 fi | |
473 if test x$ac_gc_always_collect != x ; then | |
474 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
475 [Define if you want the garbage collector to operate in maximally | |
476 paranoid mode, validating the entire heap and collecting garbage at | |
477 every opportunity. This is extremely expensive.]) | |
478 fi | |
479 if test x$ac_fold_checking != x ; then | |
480 AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
481 [Define if you want fold checked that it never destructs its argument. | |
482 This is quite expensive.]) | |
483 fi | |
484 valgrind_path_defines= | |
485 valgrind_command= | |
486 | |
487 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
488 dnl # an if statement. This was the source of very frustrating bugs | |
489 dnl # in converting to autoconf 2.5x! | |
490 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
491 | |
492 if test x$ac_valgrind_checking != x ; then | |
493 # It is certainly possible that there's valgrind but no valgrind.h. | |
494 # GCC relies on making annotations so we must have both. | |
495 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
496 AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
497 [[#include <valgrind/memcheck.h> | |
498 #ifndef VALGRIND_DISCARD | |
499 #error VALGRIND_DISCARD not defined | |
500 #endif]])], | |
501 [gcc_cv_header_valgrind_memcheck_h=yes], | |
502 [gcc_cv_header_valgrind_memcheck_h=no]) | |
503 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
504 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
505 AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
506 [[#include <memcheck.h> | |
507 #ifndef VALGRIND_DISCARD | |
508 #error VALGRIND_DISCARD not defined | |
509 #endif]])], | |
510 [gcc_cv_header_memcheck_h=yes], | |
511 [gcc_cv_header_memcheck_h=no]) | |
512 AC_MSG_RESULT($gcc_cv_header_memcheck_h) | |
513 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, | |
514 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
515 if test "x$valgrind_path" = "x" \ | |
516 || (test $have_valgrind_h = no \ | |
517 && test $gcc_cv_header_memcheck_h = no \ | |
518 && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
519 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
520 fi | |
521 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
522 valgrind_command="$valgrind_path -q" | |
523 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
524 [Define if you want to run subprograms and generated programs | |
525 through valgrind (a memory checker). This is extremely expensive.]) | |
526 if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
527 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
528 [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
529 fi | |
530 if test $gcc_cv_header_memcheck_h = yes; then | |
531 AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
532 [Define if valgrind's memcheck.h header is installed.]) | |
533 fi | |
534 fi | |
535 AC_SUBST(valgrind_path_defines) | |
536 AC_SUBST(valgrind_command) | |
537 | |
538 # Enable code coverage collection | |
539 AC_ARG_ENABLE(coverage, | |
540 [ --enable-coverage[=LEVEL] | |
541 enable compiler's code coverage collection. | |
542 Use to measure compiler performance and locate | |
543 unused parts of the compiler. With LEVEL, specify | |
544 optimization. Values are opt, noopt, | |
545 default is noopt], | |
546 [case "${enableval}" in | |
547 yes|noopt) | |
548 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
549 ;; | |
550 opt) | |
551 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
552 ;; | |
553 no) | |
554 # a.k.a. --disable-coverage | |
555 coverage_flags="" | |
556 ;; | |
557 *) | |
558 AC_MSG_ERROR(unknown coverage setting $enableval) | |
559 ;; | |
560 esac], | |
561 [coverage_flags=""]) | |
562 AC_SUBST(coverage_flags) | |
563 | |
564 AC_ARG_ENABLE(gather-detailed-mem-stats, | |
565 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
566 [enable_gather_detailed_mem_stats=no]) | |
567 if test x$enable_gather_detailed_mem_stats = xyes ; then | |
568 AC_DEFINE(GATHER_STATISTICS, 1, | |
569 [Define to enable detailed memory allocation stats gathering.]) | |
570 fi | |
571 | |
572 # ------------------------------- | |
573 # Miscenalleous configure options | |
574 # ------------------------------- | |
575 | |
576 # With stabs | |
577 AC_ARG_WITH(stabs, | |
578 [ --with-stabs arrange to use stabs instead of host debug format], | |
579 stabs="$with_stabs", | |
580 stabs=no) | |
581 | |
582 # Determine whether or not multilibs are enabled. | |
583 AC_ARG_ENABLE(multilib, | |
584 [ --enable-multilib enable library support for multiple ABIs], | |
585 [], [enable_multilib=yes]) | |
586 AC_SUBST(enable_multilib) | |
587 | |
588 # Enable __cxa_atexit for C++. | |
589 AC_ARG_ENABLE(__cxa_atexit, | |
590 [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
591 [], []) | |
592 | |
593 # Enable C extension for decimal float if target supports it. | |
594 AC_ARG_ENABLE(decimal-float, | |
595 [ --enable-decimal-float={no,yes,bid,dpd} | |
596 enable decimal float extension to C. Selecting 'bid' | |
597 or 'dpd' choses which decimal floating point format | |
598 to use], | |
599 [ | |
600 case $enable_decimal_float in | |
601 yes | no | bid | dpd) ;; | |
602 *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float. | |
603 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;; | |
604 esac | |
605 ], | |
606 [ | |
607 case $target in | |
608 powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*) | |
609 enable_decimal_float=yes | |
610 ;; | |
611 *) | |
612 AC_MSG_WARN(decimal float is not supported for this target, ignored) | |
613 enable_decimal_float=no | |
614 ;; | |
615 esac | |
616 ]) | |
617 | |
618 dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi` | |
619 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, | |
620 [Define to 1 to enable decimal float extension to C.]) | |
621 | |
622 # x86's use BID format instead of DPD | |
623 case x$enable_decimal_float in | |
624 xyes) | |
625 case $target in | |
626 i?86*-*-linux* | x86_64*-*-linux*) | |
627 enable_decimal_float=bid | |
628 ;; | |
629 *) | |
630 enable_decimal_float=dpd | |
631 ;; | |
632 esac | |
633 ;; | |
634 xno) | |
635 # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper | |
636 # dependency on libdecnumber. | |
637 enable_decimal_float=dpd | |
638 ;; | |
639 esac | |
640 AC_SUBST(enable_decimal_float) | |
641 | |
642 bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi` | |
643 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid, | |
644 [Define to 1 to specify that we are using the BID decimal floating | |
645 point format instead of DPD]) | |
646 | |
647 # Enable C extension for fixed-point arithmetic. | |
648 AC_ARG_ENABLE(fixed-point, | |
649 [ --enable-fixed-point enable fixed-point arithmetic extension to C], | |
650 [ | |
651 ], | |
652 [ | |
653 case $target in | |
654 mips*-*-*) | |
655 case $host in | |
656 mips*-sgi-irix*) | |
657 AC_MSG_WARN(fixed-point is not supported on IRIX, ignored) | |
658 enable_fixed_point=no | |
659 ;; | |
660 *) | |
661 enable_fixed_point=yes | |
662 ;; | |
663 esac | |
664 ;; | |
665 *) | |
666 AC_MSG_WARN(fixed-point is not supported for this target, ignored) | |
667 enable_fixed_point=no | |
668 ;; | |
669 esac | |
670 ]) | |
671 AC_SUBST(enable_fixed_point) | |
672 | |
673 fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi` | |
674 AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint, | |
675 [Define to 1 to enable fixed-point arithmetic extension to C.]) | |
676 | |
677 # Enable threads | |
678 # Pass with no value to take the default | |
679 # Pass with a value to specify a thread package | |
680 AC_ARG_ENABLE(threads, | |
681 [ --enable-threads enable thread usage for target GCC | |
682 --enable-threads=LIB use LIB thread package for target GCC],, | |
683 [enable_threads='']) | |
684 | |
685 AC_ARG_ENABLE(tls, | |
686 [ --enable-tls enable or disable generation of tls code | |
687 overriding the assembler check for tls support], | |
688 [ | |
689 case $enable_tls in | |
690 yes | no) ;; | |
691 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
692 Valid choices are 'yes' and 'no'.]) ;; | |
693 esac | |
694 ], [enable_tls='']) | |
695 | |
696 AC_ARG_ENABLE(objc-gc, | |
697 [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
698 the GNU Objective-C runtime], | |
699 if test x$enable_objc_gc = xno; then | |
700 objc_boehm_gc='' | |
701 else | |
702 objc_boehm_gc=1 | |
703 fi, | |
704 objc_boehm_gc='') | |
705 | |
706 AC_ARG_WITH(dwarf2, | |
707 [ --with-dwarf2 force the default debug format to be DWARF 2], | |
708 dwarf2="$with_dwarf2", | |
709 dwarf2=no) | |
710 | |
711 AC_ARG_ENABLE(shared, | |
712 [ --disable-shared don't provide a shared libgcc], | |
713 [ | |
714 case $enable_shared in | |
715 yes | no) ;; | |
716 *) | |
717 enable_shared=no | |
718 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
719 for pkg in $enableval; do | |
720 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
721 enable_shared=yes | |
722 fi | |
723 done | |
724 IFS="$ac_save_ifs" | |
725 ;; | |
726 esac | |
727 ], [enable_shared=yes]) | |
728 AC_SUBST(enable_shared) | |
729 | |
730 AC_ARG_WITH(build-sysroot, | |
731 [ --with-build-sysroot=sysroot | |
732 use sysroot as the system root during the build]) | |
733 | |
734 AC_ARG_WITH(sysroot, | |
735 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
736 [ | |
737 case ${with_sysroot} in | |
738 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; | |
739 *) TARGET_SYSTEM_ROOT=$with_sysroot ;; | |
740 esac | |
741 | |
742 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
743 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
744 | |
745 if test "x$prefix" = xNONE; then | |
746 test_prefix=/usr/local | |
747 else | |
748 test_prefix=$prefix | |
749 fi | |
750 if test "x$exec_prefix" = xNONE; then | |
751 test_exec_prefix=$test_prefix | |
752 else | |
753 test_exec_prefix=$exec_prefix | |
754 fi | |
755 case ${TARGET_SYSTEM_ROOT} in | |
756 "${test_prefix}"|"${test_prefix}/"*|\ | |
757 "${test_exec_prefix}"|"${test_exec_prefix}/"*|\ | |
758 '${prefix}'|'${prefix}/'*|\ | |
759 '${exec_prefix}'|'${exec_prefix}/'*) | |
760 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" | |
761 TARGET_SYSTEM_ROOT_DEFINE="$t" | |
762 ;; | |
763 esac | |
764 ], [ | |
765 TARGET_SYSTEM_ROOT= | |
766 TARGET_SYSTEM_ROOT_DEFINE= | |
767 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' | |
768 ]) | |
769 AC_SUBST(TARGET_SYSTEM_ROOT) | |
770 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
771 AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
772 | |
773 # Build with intermodule optimisations | |
774 AC_ARG_ENABLE(intermodule, | |
775 [ --enable-intermodule build the compiler in one step], | |
776 [case ${enable_intermodule} in | |
777 yes) onestep="-onestep";; | |
778 *) onestep="";; | |
779 esac], | |
780 [onestep=""]) | |
781 AC_SUBST(onestep) | |
782 | |
783 ACX_PKGVERSION([GCC]) | |
784 ACX_BUGURL([http://gcc.gnu.org/bugs.html]) | |
785 | |
786 # Sanity check enable_languages in case someone does not run the toplevel | |
787 # configure # script. | |
788 AC_ARG_ENABLE(languages, | |
789 [ --enable-languages=LIST specify which front-ends to build], | |
790 [case ,${enable_languages}, in | |
791 ,,|,yes,) | |
792 # go safe -- we cannot be much sure without the toplevel | |
793 # configure's | |
794 # analysis of which target libs are present and usable | |
795 enable_languages=c | |
796 ;; | |
797 *,all,*) | |
798 AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
799 ;; | |
800 *,c,*) | |
801 ;; | |
802 *) | |
803 enable_languages=c,${enable_languages} | |
804 ;; | |
805 esac], | |
806 [enable_languages=c]) | |
807 | |
808 # Used by documentation targets | |
809 AC_SUBST(datarootdir) | |
810 AC_SUBST(docdir) | |
811 AC_SUBST(htmldir) | |
812 | |
813 # ------------------------- | |
814 # Checks for other programs | |
815 # ------------------------- | |
816 | |
817 AC_PROG_MAKE_SET | |
818 | |
819 # Find some useful tools | |
820 AC_PROG_AWK | |
821 # We need awk to create options.c and options.h. | |
822 # Bail out if it's missing. | |
823 case ${AWK} in | |
824 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
825 esac | |
826 | |
827 gcc_AC_PROG_LN_S | |
828 ACX_PROG_LN($LN_S) | |
829 AC_PROG_RANLIB | |
830 case "${host}" in | |
831 *-*-darwin*) | |
832 # By default, the Darwin ranlib will not treat common symbols as | |
833 # definitions when building the archive table of contents. Other | |
834 # ranlibs do that; pass an option to the Darwin ranlib that makes | |
835 # it behave similarly. | |
836 ranlib_flags="-c" | |
837 ;; | |
838 *) | |
839 ranlib_flags="" | |
840 esac | |
841 AC_SUBST(ranlib_flags) | |
842 | |
843 gcc_AC_PROG_INSTALL | |
844 | |
845 # See if cmp has --ignore-initial. | |
846 gcc_AC_PROG_CMP_IGNORE_INITIAL | |
847 | |
848 # See if we have the mktemp command. | |
849 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
850 | |
851 # See if makeinfo has been installed and is modern enough | |
852 # that we can use it. | |
853 ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, | |
854 [GNU texinfo.* \([0-9][0-9.]*\)], | |
855 [4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) | |
856 if test $gcc_cv_prog_makeinfo_modern = no; then | |
857 AC_MSG_WARN([ | |
858 *** Makeinfo is missing or too old. | |
859 *** Info documentation will not be built.]) | |
860 BUILD_INFO= | |
861 else | |
862 BUILD_INFO=info | |
863 fi | |
864 AC_SUBST(BUILD_INFO) | |
865 | |
866 # Is pod2man recent enough to regenerate manpages? | |
867 AC_MSG_CHECKING([for recent Pod::Man]) | |
868 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then | |
869 AC_MSG_RESULT(yes) | |
870 GENERATED_MANPAGES=generated-manpages | |
871 else | |
872 AC_MSG_RESULT(no) | |
873 GENERATED_MANPAGES= | |
874 fi | |
875 AC_SUBST(GENERATED_MANPAGES) | |
876 | |
877 MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing" | |
878 | |
879 # How about lex? | |
880 dnl Don't use AC_PROG_LEX; we insist on flex. | |
881 dnl LEXLIB is not useful in gcc. | |
882 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) | |
883 | |
884 # Bison? | |
885 AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) | |
886 | |
887 # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
888 # check for build == host before using them. | |
889 | |
890 # NM | |
891 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ | |
892 && test -d ../binutils ; then | |
893 NM='$(objdir)/../binutils/nm-new' | |
894 else | |
895 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
896 fi | |
897 | |
898 # AR | |
899 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ | |
900 && test -d ../binutils ; then | |
901 AR='$(objdir)/../binutils/ar' | |
902 else | |
903 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
904 fi | |
905 | |
906 | |
907 # -------------------- | |
908 # Checks for C headers | |
909 # -------------------- | |
910 | |
911 # Need to reject headers which give warnings, so that the -Werror bootstrap | |
912 # works later. *sigh* This needs to come before all header checks. | |
913 AC_PROG_CPP_WERROR | |
914 | |
915 AC_HEADER_STDC | |
916 AC_HEADER_TIME | |
917 ACX_HEADER_STRING | |
918 AC_HEADER_SYS_WAIT | |
919 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ | |
920 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ | |
921 sys/resource.h sys/param.h sys/times.h sys/stat.h \ | |
922 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) | |
923 | |
924 # Check for thread headers. | |
925 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
926 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
927 | |
928 # These tests can't be done till we know if we have limits.h. | |
929 gcc_AC_C_CHAR_BIT | |
930 AC_C_BIGENDIAN | |
931 | |
932 # -------- | |
933 # UNSORTED | |
934 # -------- | |
935 | |
936 | |
937 # These libraries may be used by collect2. | |
938 # We may need a special search path to get them linked. | |
939 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
940 [save_LIBS="$LIBS" | |
941 for libs in '' -lld -lmld \ | |
942 '-L/usr/lib/cmplrs/cc2.11 -lmld' \ | |
943 '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
944 do | |
945 LIBS="$libs" | |
946 AC_TRY_LINK_FUNC(ldopen, | |
947 [gcc_cv_collect2_libs="$libs"; break]) | |
948 done | |
949 LIBS="$save_LIBS" | |
950 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
951 case $gcc_cv_collect2_libs in | |
952 "none required") ;; | |
953 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
954 esac | |
955 AC_SUBST(COLLECT2_LIBS) | |
956 | |
957 # When building Ada code on Alpha, we need exc_resume which is usually in | |
958 # -lexc. So test for it. | |
959 save_LIBS="$LIBS" | |
960 LIBS= | |
961 AC_SEARCH_LIBS(exc_resume, exc) | |
962 GNAT_LIBEXC="$LIBS" | |
963 LIBS="$save_LIBS" | |
964 AC_SUBST(GNAT_LIBEXC) | |
965 | |
966 # Some systems put ldexp and frexp in libm instead of libc; assume | |
967 # they're both in the same place. jcf-dump needs them. | |
968 save_LIBS="$LIBS" | |
969 LIBS= | |
970 AC_SEARCH_LIBS(ldexp, m) | |
971 LDEXP_LIB="$LIBS" | |
972 LIBS="$save_LIBS" | |
973 AC_SUBST(LDEXP_LIB) | |
974 | |
975 # Use <inttypes.h> only if it exists, | |
976 # doesn't clash with <sys/types.h>, and declares intmax_t. | |
977 AC_MSG_CHECKING(for inttypes.h) | |
978 AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
979 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
980 [[#include <sys/types.h> | |
981 #include <inttypes.h>]], | |
982 [[intmax_t i = -1;]])], | |
983 [gcc_cv_header_inttypes_h=yes], | |
984 [gcc_cv_header_inttypes_h=no])]) | |
985 AC_MSG_RESULT($gcc_cv_header_inttypes_h) | |
986 if test $gcc_cv_header_inttypes_h = yes; then | |
987 AC_DEFINE(HAVE_INTTYPES_H, 1, | |
988 [Define if you have a working <inttypes.h> header file.]) | |
989 fi | |
990 | |
991 dnl Disabled until we have a complete test for buggy enum bitfields. | |
992 dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
993 | |
994 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl | |
995 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
996 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
997 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
998 putchar_unlocked putc_unlocked) | |
999 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \ | |
1000 sysconf strsignal getrusage nl_langinfo \ | |
1001 gettimeofday mbstowcs wcswidth mmap mincore setlocale \ | |
1002 gcc_UNLOCKED_FUNCS) | |
1003 | |
1004 if test x$ac_cv_func_mbstowcs = xyes; then | |
1005 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
1006 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> | |
1007 int main() | |
1008 { | |
1009 mbstowcs(0, "", 0); | |
1010 return 0; | |
1011 }]])], | |
1012 [gcc_cv_func_mbstowcs_works=yes], | |
1013 [gcc_cv_func_mbstowcs_works=no], | |
1014 [gcc_cv_func_mbstowcs_works=yes])]) | |
1015 if test x$gcc_cv_func_mbstowcs_works = xyes; then | |
1016 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1017 [Define this macro if mbstowcs does not crash when its | |
1018 first argument is NULL.]) | |
1019 fi | |
1020 fi | |
1021 | |
1022 AC_CHECK_TYPE(ssize_t, int) | |
1023 AC_CHECK_TYPE(caddr_t, char *) | |
1024 | |
1025 # Try to determine the array type of the second argument of getgroups | |
1026 # for the target system (int or gid_t). | |
1027 AC_TYPE_GETGROUPS | |
1028 if test "${target}" = "${build}"; then | |
1029 TARGET_GETGROUPS_T=$ac_cv_type_getgroups | |
1030 else | |
1031 case "${target}" in | |
1032 # This condition may need some tweaking. It should include all | |
1033 # targets where the array type of the second argument of getgroups | |
1034 # is int and the type of gid_t is not equivalent to int. | |
1035 *-*-sunos* | *-*-ultrix*) | |
1036 TARGET_GETGROUPS_T=int | |
1037 ;; | |
1038 *) | |
1039 TARGET_GETGROUPS_T=gid_t | |
1040 ;; | |
1041 esac | |
1042 fi | |
1043 AC_SUBST(TARGET_GETGROUPS_T) | |
1044 | |
1045 gcc_AC_FUNC_MMAP_BLACKLIST | |
1046 | |
1047 case "${host}" in | |
1048 *-*-*vms*) | |
1049 # Under VMS, vfork works very differently than on Unix. The standard test | |
1050 # won't work, and it isn't easily adaptable. It makes more sense to | |
1051 # just force it. | |
1052 ac_cv_func_vfork_works=yes | |
1053 ;; | |
1054 esac | |
1055 AC_FUNC_FORK | |
1056 | |
1057 AM_ICONV | |
1058 # Until we have in-tree GNU iconv: | |
1059 LIBICONV_DEP= | |
1060 AC_SUBST(LIBICONV_DEP) | |
1061 | |
1062 AM_LC_MESSAGES | |
1063 | |
1064 AM_LANGINFO_CODESET | |
1065 | |
1066 # We will need to find libiberty.h and ansidecl.h | |
1067 saved_CFLAGS="$CFLAGS" | |
1068 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
1069 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \ | |
1070 strsignal strstr strverscmp \ | |
1071 errno snprintf vsnprintf vasprintf malloc realloc calloc \ | |
1072 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[ | |
1073 #include "ansidecl.h" | |
1074 #include "system.h"]) | |
1075 | |
1076 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ | |
1077 #include "ansidecl.h" | |
1078 #include "system.h" | |
1079 #ifdef HAVE_SYS_RESOURCE_H | |
1080 #include <sys/resource.h> | |
1081 #endif | |
1082 ]) | |
1083 | |
1084 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1085 #include "ansidecl.h" | |
1086 #include "system.h" | |
1087 #ifdef HAVE_SYS_RESOURCE_H | |
1088 #include <sys/resource.h> | |
1089 #endif | |
1090 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], | |
1091 [Define to `long' if <sys/resource.h> doesn't define.])]) | |
1092 | |
1093 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible | |
1094 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1095 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1096 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
1097 gcc_AC_CHECK_DECLS(ldgetname, , ,[ | |
1098 #include "ansidecl.h" | |
1099 #include "system.h" | |
1100 #ifdef HAVE_LDFCN_H | |
1101 #undef FREAD | |
1102 #undef FWRITE | |
1103 #include <ldfcn.h> | |
1104 #endif | |
1105 ]) | |
1106 | |
1107 gcc_AC_CHECK_DECLS(times, , ,[ | |
1108 #include "ansidecl.h" | |
1109 #include "system.h" | |
1110 #ifdef HAVE_SYS_TIMES_H | |
1111 #include <sys/times.h> | |
1112 #endif | |
1113 ]) | |
1114 | |
1115 gcc_AC_CHECK_DECLS(sigaltstack, , ,[ | |
1116 #include "ansidecl.h" | |
1117 #include "system.h" | |
1118 #include <signal.h> | |
1119 ]) | |
1120 | |
1121 # More time-related stuff. | |
1122 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
1123 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1124 #include "ansidecl.h" | |
1125 #include "system.h" | |
1126 #ifdef HAVE_SYS_TIMES_H | |
1127 #include <sys/times.h> | |
1128 #endif | |
1129 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) | |
1130 if test $ac_cv_struct_tms = yes; then | |
1131 AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1132 [Define if <sys/times.h> defines struct tms.]) | |
1133 fi | |
1134 | |
1135 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1136 # revisit after autoconf 2.50. | |
1137 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
1138 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1139 #include "ansidecl.h" | |
1140 #include "system.h" | |
1141 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) | |
1142 if test $gcc_cv_type_clock_t = yes; then | |
1143 AC_DEFINE(HAVE_CLOCK_T, 1, | |
1144 [Define if <time.h> defines clock_t.]) | |
1145 fi | |
1146 | |
1147 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. | |
1148 CFLAGS="$saved_CFLAGS" | |
1149 | |
1150 gcc_AC_INITFINI_ARRAY | |
1151 | |
1152 # mkdir takes a single argument on some systems. | |
1153 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG | |
1154 | |
1155 # File extensions | |
1156 manext='.1' | |
1157 objext='.o' | |
1158 AC_SUBST(manext) | |
1159 AC_SUBST(objext) | |
1160 | |
1161 # With Setjmp/Longjmp based exception handling. | |
1162 AC_ARG_ENABLE(sjlj-exceptions, | |
1163 [ --enable-sjlj-exceptions | |
1164 arrange to use setjmp/longjmp exception handling], | |
1165 [case $target in | |
1166 *-*-hpux10*) | |
1167 if test $enableval != yes; then | |
1168 AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced]) | |
1169 enableval=yes | |
1170 fi | |
1171 ;; | |
1172 esac | |
1173 force_sjlj_exceptions=yes], | |
1174 [case $target in | |
1175 *-*-hpux10*) | |
1176 force_sjlj_exceptions=yes | |
1177 enableval=yes | |
1178 ;; | |
1179 *) | |
1180 force_sjlj_exceptions=no | |
1181 ;; | |
1182 esac]) | |
1183 if test $force_sjlj_exceptions = yes; then | |
1184 sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1185 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1186 [Define 0/1 to force the choice for exception handling model.]) | |
1187 fi | |
1188 | |
1189 # For platforms with the unwind ABI which includes an unwind library, | |
1190 # libunwind, we can choose to use the system libunwind. | |
1191 # config.gcc also contains tests of with_system_libunwind. | |
1192 GCC_CHECK_UNWIND_GETIPINFO | |
1193 | |
1194 # -------------------------------------------------------- | |
1195 # Build, host, and target specific configuration fragments | |
1196 # -------------------------------------------------------- | |
1197 | |
1198 # Collect build-machine-specific information. | |
1199 . ${srcdir}/config.build | |
1200 | |
1201 # Collect host-machine-specific information. | |
1202 . ${srcdir}/config.host | |
1203 | |
1204 target_gtfiles= | |
1205 | |
1206 # Collect target-machine-specific information. | |
1207 . ${srcdir}/config.gcc | |
1208 | |
1209 extra_objs="${host_extra_objs} ${extra_objs}" | |
1210 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" | |
1211 | |
1212 # Default the target-machine variables that were not explicitly set. | |
1213 if test x"$tm_file" = x | |
1214 then tm_file=$cpu_type/$cpu_type.h; fi | |
1215 | |
1216 if test x"$extra_headers" = x | |
1217 then extra_headers=; fi | |
1218 | |
1219 if test x$md_file = x | |
1220 then md_file=$cpu_type/$cpu_type.md; fi | |
1221 | |
1222 if test x$out_file = x | |
1223 then out_file=$cpu_type/$cpu_type.c; fi | |
1224 | |
1225 if test x"$tmake_file" = x | |
1226 then tmake_file=$cpu_type/t-$cpu_type | |
1227 fi | |
1228 | |
1229 if test x"$dwarf2" = xyes | |
1230 then tm_file="$tm_file tm-dwarf2.h" | |
1231 fi | |
1232 | |
1233 # Say what files are being used for the output code and MD file. | |
1234 echo "Using \`$srcdir/config/$out_file' for machine-specific logic." | |
1235 echo "Using \`$srcdir/config/$md_file' as machine description file." | |
1236 | |
1237 # If any of the xm_file variables contain nonexistent files, warn | |
1238 # about them and drop them. | |
1239 | |
1240 bx= | |
1241 for x in $build_xm_file; do | |
1242 if test -f $srcdir/config/$x | |
1243 then bx="$bx $x" | |
1244 else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1245 fi | |
1246 done | |
1247 build_xm_file="$bx" | |
1248 | |
1249 hx= | |
1250 for x in $host_xm_file; do | |
1251 if test -f $srcdir/config/$x | |
1252 then hx="$hx $x" | |
1253 else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1254 fi | |
1255 done | |
1256 host_xm_file="$hx" | |
1257 | |
1258 tx= | |
1259 for x in $xm_file; do | |
1260 if test -f $srcdir/config/$x | |
1261 then tx="$tx $x" | |
1262 else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1263 fi | |
1264 done | |
1265 xm_file="$tx" | |
1266 | |
1267 count=a | |
1268 for f in $tm_file; do | |
1269 count=${count}x | |
1270 done | |
1271 if test $count = ax; then | |
1272 echo "Using \`$srcdir/config/$tm_file' as target machine macro file." | |
1273 else | |
1274 echo "Using the following target machine macro files:" | |
1275 for f in $tm_file; do | |
1276 echo " $srcdir/config/$f" | |
1277 done | |
1278 fi | |
1279 | |
1280 if test x$need_64bit_hwint = xyes; then | |
1281 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1282 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1283 fi | |
1284 | |
1285 if test x$use_long_long_for_widest_fast_int = xyes; then | |
1286 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1287 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1288 efficiently supported by the host hardware.]) | |
1289 fi | |
1290 | |
1291 count=a | |
1292 for f in $host_xm_file; do | |
1293 count=${count}x | |
1294 done | |
1295 if test $count = a; then | |
1296 : | |
1297 elif test $count = ax; then | |
1298 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." | |
1299 else | |
1300 echo "Using the following host machine macro files:" | |
1301 for f in $host_xm_file; do | |
1302 echo " $srcdir/config/$f" | |
1303 done | |
1304 fi | |
1305 echo "Using ${out_host_hook_obj} for host machine hooks." | |
1306 | |
1307 if test "$host_xm_file" != "$build_xm_file"; then | |
1308 count=a | |
1309 for f in $build_xm_file; do | |
1310 count=${count}x | |
1311 done | |
1312 if test $count = a; then | |
1313 : | |
1314 elif test $count = ax; then | |
1315 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." | |
1316 else | |
1317 echo "Using the following build machine macro files:" | |
1318 for f in $build_xm_file; do | |
1319 echo " $srcdir/config/$f" | |
1320 done | |
1321 fi | |
1322 fi | |
1323 | |
1324 case ${host} in | |
1325 powerpc*-*-darwin*) | |
1326 AC_CACHE_CHECK([whether mcontext_t fields have underscores], | |
1327 gcc_cv_mcontext_underscores, | |
1328 AC_COMPILE_IFELSE([ | |
1329 #include <sys/cdefs.h> | |
1330 #include <sys/signal.h> | |
1331 #include <ucontext.h> | |
1332 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
1333 ], | |
1334 gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) | |
1335 if test $gcc_cv_mcontext_underscores = yes; then | |
1336 AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1337 [mcontext_t fields start with __]) | |
1338 fi | |
1339 ;; | |
1340 esac | |
1341 | |
1342 # --------- | |
1343 # Threading | |
1344 # --------- | |
1345 | |
1346 # Check if a valid thread package | |
1347 case ${enable_threads} in | |
1348 "" | no) | |
1349 # No threads | |
1350 target_thread_file='single' | |
1351 ;; | |
1352 yes) | |
1353 # default | |
1354 target_thread_file='single' | |
1355 ;; | |
1356 aix | dce | gnat | irix | posix | posix95 | rtems | \ | |
1357 single | solaris | vxworks | win32 | mipssde) | |
1358 target_thread_file=${enable_threads} | |
1359 ;; | |
1360 *) | |
1361 echo "${enable_threads} is an unknown thread package" 1>&2 | |
1362 exit 1 | |
1363 ;; | |
1364 esac | |
1365 | |
1366 if test x${thread_file} = x; then | |
1367 # No thread file set by target-specific clauses in config.gcc, | |
1368 # so use file chosen by default logic above | |
1369 thread_file=${target_thread_file} | |
1370 fi | |
1371 | |
1372 # Make gthr-default.h if we have a thread file. | |
1373 gthread_flags= | |
1374 if test $thread_file != single; then | |
1375 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t | |
1376 if diff gthr-default.h-t gthr-default.h 2>/dev/null; then | |
1377 rm -f gthr-default.h-t | |
1378 else | |
1379 mv -f gthr-default.h-t gthr-default.h | |
1380 fi | |
1381 gthread_flags=-DHAVE_GTHR_DEFAULT | |
1382 fi | |
1383 AC_SUBST(gthread_flags) | |
1384 | |
1385 # -------- | |
1386 # UNSORTED | |
1387 # -------- | |
1388 | |
1389 use_cxa_atexit=no | |
1390 if test x$enable___cxa_atexit = xyes || \ | |
1391 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
1392 if test x$host = x$target; then | |
1393 case $host in | |
1394 # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1395 # keyed to flag_use_cxa_atexit | |
1396 *-*-mingw32*) | |
1397 use_cxa_atexit=yes | |
1398 ;; | |
1399 *) | |
1400 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1401 [echo "__cxa_atexit can't be enabled on this target"]) | |
1402 ;; | |
1403 esac | |
1404 else | |
1405 # We can't check for __cxa_atexit when building a cross, so assume | |
1406 # it is available | |
1407 use_cxa_atexit=yes | |
1408 fi | |
1409 if test x$use_cxa_atexit = xyes; then | |
1410 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, | |
1411 [Define if you want to use __cxa_atexit, rather than atexit, to | |
1412 register C++ destructors for local statics and global objects. | |
1413 This is essential for fully standards-compliant handling of | |
1414 destructors, but requires __cxa_atexit in libc.]) | |
1415 fi | |
1416 fi | |
1417 | |
1418 # Look for a file containing extra machine modes. | |
1419 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then | |
1420 extra_modes_file='$(srcdir)'/config/${extra_modes} | |
1421 AC_SUBST(extra_modes_file) | |
1422 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", | |
1423 [Define to the name of a file containing a list of extra machine modes | |
1424 for this architecture.]) | |
1425 fi | |
1426 | |
1427 # Convert extra_options into a form suitable for Makefile use. | |
1428 extra_opt_files= | |
1429 for f in $extra_options; do | |
1430 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1431 done | |
1432 AC_SUBST(extra_opt_files) | |
1433 | |
1434 # auto-host.h is the file containing items generated by autoconf and is | |
1435 # the first file included by config.h. | |
1436 # If host=build, it is correct to have bconfig include auto-host.h | |
1437 # as well. If host!=build, we are in error and need to do more | |
1438 # work to find out the build config parameters. | |
1439 if test x$host = x$build | |
1440 then | |
1441 build_auto=auto-host.h | |
1442 else | |
1443 # We create a subdir, then run autoconf in the subdir. | |
1444 # To prevent recursion we set host and build for the new | |
1445 # invocation of configure to the build for this invocation | |
1446 # of configure. | |
1447 tempdir=build.$$ | |
1448 rm -rf $tempdir | |
1449 mkdir $tempdir | |
1450 cd $tempdir | |
1451 case ${srcdir} in | |
1452 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; | |
1453 *) realsrcdir=../${srcdir};; | |
1454 esac | |
1455 saved_CFLAGS="${CFLAGS}" | |
1456 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
1457 LDFLAGS="${LDFLAGS_FOR_BUILD}" \ | |
1458 ${realsrcdir}/configure \ | |
1459 --enable-languages=${enable_languages-all} \ | |
1460 --target=$target_alias --host=$build_alias --build=$build_alias | |
1461 CFLAGS="${saved_CFLAGS}" | |
1462 | |
1463 # We just finished tests for the build machine, so rename | |
1464 # the file auto-build.h in the gcc directory. | |
1465 mv auto-host.h ../auto-build.h | |
1466 cd .. | |
1467 rm -rf $tempdir | |
1468 build_auto=auto-build.h | |
1469 fi | |
1470 AC_SUBST(build_subdir) | |
1471 | |
1472 tm_file="${tm_file} defaults.h" | |
1473 tm_p_file="${tm_p_file} tm-preds.h" | |
1474 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1475 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
1476 # We don't want ansidecl.h in target files, write code there in ISO/GNU C. | |
1477 # put this back in temporarily. | |
1478 xm_file="auto-host.h ansidecl.h ${xm_file}" | |
1479 | |
1480 # -------- | |
1481 # UNSORTED | |
1482 # -------- | |
1483 | |
1484 changequote(,)dnl | |
1485 # Compile in configure arguments. | |
1486 if test -f configargs.h ; then | |
1487 # Being re-configured. | |
1488 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` | |
1489 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1490 else | |
1491 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1492 fi | |
1493 | |
1494 # Double all backslashes and backslash all quotes to turn | |
1495 # gcc_config_arguments into a C string. | |
1496 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1497 $gcc_config_arguments | |
1498 EOF | |
1499 gcc_config_arguments_str=`cat conftest.out` | |
1500 rm -f conftest.out | |
1501 | |
1502 cat > configargs.h <<EOF | |
1503 /* Generated automatically. */ | |
1504 static const char configuration_arguments[] = "$gcc_config_arguments_str"; | |
1505 static const char thread_model[] = "$thread_file"; | |
1506 | |
1507 static const struct { | |
1508 const char *name, *value; | |
1509 } configure_default_options[] = $configure_default_options; | |
1510 EOF | |
1511 changequote([,])dnl | |
1512 | |
1513 # Internationalization | |
1514 ZW_GNU_GETTEXT_SISTER_DIR | |
1515 | |
1516 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get | |
1517 # -liconv on the link line twice. | |
1518 case "$LIBINTL" in *$LIBICONV*) | |
1519 LIBICONV= ;; | |
1520 esac | |
1521 | |
1522 AC_ARG_ENABLE(secureplt, | |
1523 [ --enable-secureplt enable -msecure-plt by default for PowerPC], | |
1524 [], []) | |
1525 | |
1526 AC_ARG_ENABLE(cld, | |
1527 [ --enable-cld enable -mcld by default for 32bit x86], [], | |
1528 [enable_cld=no]) | |
1529 | |
1530 # Windows32 Registry support for specifying GCC installation paths. | |
1531 AC_ARG_ENABLE(win32-registry, | |
1532 [ --disable-win32-registry | |
1533 disable lookup of installation paths in the | |
1534 Registry on Windows hosts | |
1535 --enable-win32-registry enable registry lookup (default) | |
1536 --enable-win32-registry=KEY | |
1537 use KEY instead of GCC version as the last portion | |
1538 of the registry key],,) | |
1539 | |
1540 case $host_os in | |
1541 win32 | pe | cygwin* | mingw32* | uwin*) | |
1542 if test "x$enable_win32_registry" != xno; then | |
1543 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1544 fi | |
1545 | |
1546 if test "x$enable_win32_registry" != xno; then | |
1547 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1548 [Define to 1 if installation paths should be looked up in the Windows | |
1549 Registry. Ignored on non-Windows hosts.]) | |
1550 | |
1551 if test "x$enable_win32_registry" != xyes \ | |
1552 && test "x$enable_win32_registry" != x; then | |
1553 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1554 [Define to be the last component of the Windows registry key under which | |
1555 to look for installation paths. The full key used will be | |
1556 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1557 The default is the GCC version number.]) | |
1558 fi | |
1559 fi | |
1560 ;; | |
1561 esac | |
1562 | |
1563 # Get an absolute path to the GCC top-level source directory | |
1564 holddir=`${PWDCMD-pwd}` | |
1565 cd $srcdir | |
1566 topdir=`${PWDCMD-pwd}` | |
1567 cd $holddir | |
1568 | |
1569 # Conditionalize the makefile for this host machine. | |
1570 xmake_file= | |
1571 for f in ${host_xmake_file} | |
1572 do | |
1573 if test -f ${srcdir}/config/$f | |
1574 then | |
1575 xmake_file="${xmake_file} \$(srcdir)/config/$f" | |
1576 fi | |
1577 done | |
1578 | |
1579 # Conditionalize the makefile for this target machine. | |
1580 tmake_file_= | |
1581 for f in ${tmake_file} | |
1582 do | |
1583 if test -f ${srcdir}/config/$f | |
1584 then | |
1585 tmake_file_="${tmake_file_} \$(srcdir)/config/$f" | |
1586 fi | |
1587 done | |
1588 tmake_file="${tmake_file_}" | |
1589 | |
1590 out_object_file=`basename $out_file .c`.o | |
1591 | |
1592 tm_file_list="options.h" | |
1593 tm_include_list="options.h" | |
1594 for f in $tm_file; do | |
1595 case $f in | |
1596 ./* ) | |
1597 f=`echo $f | sed 's/^..//'` | |
1598 tm_file_list="${tm_file_list} $f" | |
1599 tm_include_list="${tm_include_list} $f" | |
1600 ;; | |
1601 defaults.h ) | |
1602 tm_file_list="${tm_file_list} \$(srcdir)/$f" | |
1603 tm_include_list="${tm_include_list} $f" | |
1604 ;; | |
1605 * ) | |
1606 tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1607 tm_include_list="${tm_include_list} config/$f" | |
1608 ;; | |
1609 esac | |
1610 done | |
1611 | |
1612 tm_p_file_list= | |
1613 tm_p_include_list= | |
1614 for f in $tm_p_file; do | |
1615 case $f in | |
1616 tm-preds.h ) | |
1617 tm_p_file_list="${tm_p_file_list} $f" | |
1618 tm_p_include_list="${tm_p_include_list} $f" | |
1619 ;; | |
1620 * ) | |
1621 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1622 tm_p_include_list="${tm_p_include_list} config/$f" | |
1623 esac | |
1624 done | |
1625 | |
1626 xm_file_list= | |
1627 xm_include_list= | |
1628 for f in $xm_file; do | |
1629 case $f in | |
1630 ansidecl.h ) | |
1631 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1632 xm_include_list="${xm_include_list} $f" | |
1633 ;; | |
1634 auto-host.h ) | |
1635 xm_file_list="${xm_file_list} $f" | |
1636 xm_include_list="${xm_include_list} $f" | |
1637 ;; | |
1638 * ) | |
1639 xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1640 xm_include_list="${xm_include_list} config/$f" | |
1641 ;; | |
1642 esac | |
1643 done | |
1644 | |
1645 host_xm_file_list= | |
1646 host_xm_include_list= | |
1647 for f in $host_xm_file; do | |
1648 case $f in | |
1649 ansidecl.h ) | |
1650 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" | |
1651 host_xm_include_list="${host_xm_include_list} $f" | |
1652 ;; | |
1653 auto-host.h ) | |
1654 host_xm_file_list="${host_xm_file_list} $f" | |
1655 host_xm_include_list="${host_xm_include_list} $f" | |
1656 ;; | |
1657 * ) | |
1658 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1659 host_xm_include_list="${host_xm_include_list} config/$f" | |
1660 ;; | |
1661 esac | |
1662 done | |
1663 | |
1664 build_xm_file_list= | |
1665 for f in $build_xm_file; do | |
1666 case $f in | |
1667 ansidecl.h ) | |
1668 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" | |
1669 build_xm_include_list="${build_xm_include_list} $f" | |
1670 ;; | |
1671 auto-build.h | auto-host.h ) | |
1672 build_xm_file_list="${build_xm_file_list} $f" | |
1673 build_xm_include_list="${build_xm_include_list} $f" | |
1674 ;; | |
1675 * ) | |
1676 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1677 build_xm_include_list="${build_xm_include_list} config/$f" | |
1678 ;; | |
1679 esac | |
1680 done | |
1681 | |
1682 # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a | |
1683 # cross-compiler which does not use the native headers and libraries. | |
1684 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. | |
1685 CROSS= AC_SUBST(CROSS) | |
1686 ALL=all.internal AC_SUBST(ALL) | |
1687 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
1688 | |
1689 if test "x$with_build_sysroot" != x; then | |
1690 build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
1691 else | |
1692 # This value is used, even on a native system, because | |
1693 # CROSS_SYSTEM_HEADER_DIR is just | |
1694 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR). | |
1695 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)' | |
1696 fi | |
1697 | |
1698 if test x$host != x$target | |
1699 then | |
1700 CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
1701 ALL=all.cross | |
1702 SYSTEM_HEADER_DIR=$build_system_header_dir | |
1703 case "$host","$target" in | |
1704 # Darwin crosses can use the host system's libraries and headers, | |
1705 # because of the fat library support. Of course, it must be the | |
1706 # same version of Darwin on both sides. Allow the user to | |
1707 # just say --target=foo-darwin without a version number to mean | |
1708 # "the version on this system". | |
1709 *-*-darwin*,*-*-darwin*) | |
1710 hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1711 targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1712 if test $hostos = $targetos -o $targetos = darwin ; then | |
1713 CROSS= | |
1714 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1715 with_headers=yes | |
1716 fi | |
1717 ;; | |
1718 | |
1719 i?86-*-*,x86_64-*-* \ | |
1720 | powerpc*-*-*,powerpc64*-*-*) | |
1721 CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1722 esac | |
1723 elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
1724 SYSTEM_HEADER_DIR=$build_system_header_dir | |
1725 fi | |
1726 | |
1727 # If this is a cross-compiler that does not | |
1728 # have its own set of headers then define | |
1729 # inhibit_libc | |
1730 | |
1731 # If this is using newlib, without having the headers available now, | |
1732 # then define inhibit_libc in LIBGCC2_CFLAGS. | |
1733 # This prevents libgcc2 from containing any code which requires libc | |
1734 # support. | |
1735 : ${inhibit_libc=false} | |
1736 if { { test x$host != x$target && test "x$with_sysroot" = x ; } || | |
1737 test x$with_newlib = xyes ; } && | |
1738 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then | |
1739 inhibit_libc=true | |
1740 fi | |
1741 AC_SUBST(inhibit_libc) | |
1742 | |
1743 # When building gcc with a cross-compiler, we need to adjust things so | |
1744 # that the generator programs are still built with the native compiler. | |
1745 # Also, we cannot run fixincludes or fix-header. | |
1746 | |
1747 # These are the normal (build=host) settings: | |
1748 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) | |
1749 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) | |
1750 BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) | |
1751 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) | |
1752 | |
1753 # Possibly disable fixproto, on a per-target basis. | |
1754 case ${use_fixproto} in | |
1755 no) | |
1756 STMP_FIXPROTO= | |
1757 ;; | |
1758 yes) | |
1759 STMP_FIXPROTO=stmp-fixproto | |
1760 ;; | |
1761 esac | |
1762 AC_SUBST(STMP_FIXPROTO) | |
1763 | |
1764 # And these apply if build != host, or we are generating coverage data | |
1765 if test x$build != x$host || test "x$coverage_flags" != x | |
1766 then | |
1767 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' | |
1768 BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' | |
1769 | |
1770 if test "x$TARGET_SYSTEM_ROOT" = x; then | |
1771 if test "x$STMP_FIXPROTO" != x; then | |
1772 STMP_FIXPROTO=stmp-install-fixproto | |
1773 fi | |
1774 fi | |
1775 fi | |
1776 | |
1777 # Expand extra_headers to include complete path. | |
1778 # This substitutes for lots of t-* files. | |
1779 extra_headers_list= | |
1780 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. | |
1781 for file in ${extra_headers} ; do | |
1782 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1783 done | |
1784 | |
1785 # If use_gcc_tgmath is set, append ginclude/tgmath.h. | |
1786 if test x"$use_gcc_tgmath" = xyes | |
1787 then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h" | |
1788 fi | |
1789 | |
1790 # Define collect2 in Makefile. | |
1791 case $host_can_use_collect2 in | |
1792 no) collect2= ;; | |
1793 *) collect2='collect2$(exeext)' ;; | |
1794 esac | |
1795 AC_SUBST([collect2]) | |
1796 | |
1797 # Add a definition of USE_COLLECT2 if system wants one. | |
1798 case $use_collect2 in | |
1799 no) use_collect2= ;; | |
1800 "") ;; | |
1801 *) | |
1802 host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1803 xm_defines="${xm_defines} USE_COLLECT2" | |
1804 case $host_can_use_collect2 in | |
1805 no) | |
1806 AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1807 ;; | |
1808 esac | |
1809 ;; | |
1810 esac | |
1811 | |
1812 # --------------------------- | |
1813 # Assembler & linker features | |
1814 # --------------------------- | |
1815 | |
1816 # During stage 2, ld is actually gcc/collect-ld, which is a small script to | |
1817 # discern between when to use prev-ld/ld-new and when to use ld/ld-new. | |
1818 # However when ld-new is first executed from the build tree, libtool will | |
1819 # relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers | |
1820 # to the build tree. While doing this we need to use the previous-stage | |
1821 # linker, or we have an infinite loop. The presence of a shell script as | |
1822 # ld/ld-new, and the fact that the script *uses ld itself*, is what confuses | |
1823 # the gcc/collect-ld script. So we need to know how libtool works, or | |
1824 # exec-tool will fail. | |
1825 | |
1826 m4_defun([_LT_CONFIG_COMMANDS], []) | |
1827 AC_PROG_LIBTOOL | |
1828 AC_SUBST(objdir) | |
1829 AC_SUBST(enable_fast_install) | |
1830 | |
1831 # Identify the assembler which will work hand-in-glove with the newly | |
1832 # built GCC, so that we can examine its features. This is the assembler | |
1833 # which will be driven by the driver program. | |
1834 # | |
1835 # If build != host, and we aren't building gas in-tree, we identify a | |
1836 # build->target assembler and hope that it will have the same features | |
1837 # as the host->target assembler we'll be using. | |
1838 gcc_cv_gas_major_version= | |
1839 gcc_cv_gas_minor_version= | |
1840 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas | |
1841 | |
1842 m4_pattern_allow([AS_FOR_TARGET])dnl | |
1843 AS_VAR_SET_IF(gcc_cv_as,, [ | |
1844 if test -x "$DEFAULT_ASSEMBLER"; then | |
1845 gcc_cv_as="$DEFAULT_ASSEMBLER" | |
1846 elif test -f $gcc_cv_as_gas_srcdir/configure.in \ | |
1847 && test -f ../gas/Makefile \ | |
1848 && test x$build = x$host; then | |
1849 gcc_cv_as=../gas/as-new$build_exeext | |
1850 elif test -x as$build_exeext; then | |
1851 # Build using assembler in the current directory. | |
1852 gcc_cv_as=./as$build_exeext | |
1853 elif test -x $AS_FOR_TARGET; then | |
1854 gcc_cv_as="$AS_FOR_TARGET" | |
1855 else | |
1856 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
1857 fi]) | |
1858 | |
1859 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
1860 AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
1861 case "$ORIGINAL_AS_FOR_TARGET" in | |
1862 ./as | ./as$build_exeext) ;; | |
1863 *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;; | |
1864 esac | |
1865 | |
1866 AC_MSG_CHECKING(what assembler to use) | |
1867 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
1868 # Single tree build which includes gas. We want to prefer it | |
1869 # over whatever linker top-level may have detected, since | |
1870 # we'll use what we're building after installation anyway. | |
1871 AC_MSG_RESULT(newly built gas) | |
1872 in_tree_gas=yes | |
1873 _gcc_COMPUTE_GAS_VERSION | |
1874 in_tree_gas_is_elf=no | |
1875 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1876 || (grep 'obj_format = multi' ../gas/Makefile \ | |
1877 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1878 then | |
1879 in_tree_gas_is_elf=yes | |
1880 fi | |
1881 else | |
1882 AC_MSG_RESULT($gcc_cv_as) | |
1883 in_tree_gas=no | |
1884 fi | |
1885 | |
1886 # Identify the linker which will work hand-in-glove with the newly | |
1887 # built GCC, so that we can examine its features. This is the linker | |
1888 # which will be driven by the driver program. | |
1889 # | |
1890 # If build != host, and we aren't building gas in-tree, we identify a | |
1891 # build->target linker and hope that it will have the same features | |
1892 # as the host->target linker we'll be using. | |
1893 gcc_cv_gld_major_version= | |
1894 gcc_cv_gld_minor_version= | |
1895 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1896 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
1897 | |
1898 AS_VAR_SET_IF(gcc_cv_ld,, [ | |
1899 if test -x "$DEFAULT_LINKER"; then | |
1900 gcc_cv_ld="$DEFAULT_LINKER" | |
1901 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ | |
1902 && test -f ../ld/Makefile \ | |
1903 && test x$build = x$host; then | |
1904 gcc_cv_ld=../ld/ld-new$build_exeext | |
1905 elif test -x collect-ld$build_exeext; then | |
1906 # Build using linker in the current directory. | |
1907 gcc_cv_ld=./collect-ld$build_exeext | |
1908 elif test -x $LD_FOR_TARGET; then | |
1909 gcc_cv_ld="$LD_FOR_TARGET" | |
1910 else | |
1911 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
1912 fi]) | |
1913 | |
1914 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld | |
1915 AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
1916 case "$ORIGINAL_LD_FOR_TARGET" in | |
1917 ./collect-ld | ./collect-ld$build_exeext) ;; | |
1918 *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; | |
1919 esac | |
1920 | |
1921 AC_MSG_CHECKING(what linker to use) | |
1922 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then | |
1923 # Single tree build which includes ld. We want to prefer it | |
1924 # over whatever linker top-level may have detected, since | |
1925 # we'll use what we're building after installation anyway. | |
1926 AC_MSG_RESULT(newly built ld) | |
1927 in_tree_ld=yes | |
1928 in_tree_ld_is_elf=no | |
1929 if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
1930 || grep 'EMUL = .*linux' ../ld/Makefile \ | |
1931 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
1932 in_tree_ld_is_elf=yes | |
1933 fi | |
1934 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 | |
1935 do | |
1936 changequote(,)dnl | |
1937 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` | |
1938 if test x$gcc_cv_gld_version != x; then | |
1939 break | |
1940 fi | |
1941 done | |
1942 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` | |
1943 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1944 changequote([,])dnl | |
1945 else | |
1946 AC_MSG_RESULT($gcc_cv_ld) | |
1947 in_tree_ld=no | |
1948 fi | |
1949 | |
1950 # Figure out what nm we will be using. | |
1951 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils | |
1952 AS_VAR_SET_IF(gcc_cv_nm,, [ | |
1953 if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1954 && test -f ../binutils/Makefile \ | |
1955 && test x$build = x$host; then | |
1956 gcc_cv_nm=../binutils/nm-new$build_exeext | |
1957 elif test -x nm$build_exeext; then | |
1958 gcc_cv_nm=./nm$build_exeext | |
1959 elif test -x $NM_FOR_TARGET; then | |
1960 gcc_cv_nm="$NM_FOR_TARGET" | |
1961 else | |
1962 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
1963 fi]) | |
1964 | |
1965 AC_MSG_CHECKING(what nm to use) | |
1966 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then | |
1967 # Single tree build which includes binutils. | |
1968 AC_MSG_RESULT(newly built nm) | |
1969 in_tree_nm=yes | |
1970 else | |
1971 AC_MSG_RESULT($gcc_cv_nm) | |
1972 in_tree_nm=no | |
1973 fi | |
1974 | |
1975 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
1976 AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
1977 case "$ORIGINAL_NM_FOR_TARGET" in | |
1978 ./nm | ./nm$build_exeext) ;; | |
1979 *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;; | |
1980 esac | |
1981 | |
1982 | |
1983 # Figure out what objdump we will be using. | |
1984 AS_VAR_SET_IF(gcc_cv_objdump,, [ | |
1985 if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1986 && test -f ../binutils/Makefile \ | |
1987 && test x$build = x$host; then | |
1988 # Single tree build which includes binutils. | |
1989 gcc_cv_objdump=../binutils/objdump$build_exeext | |
1990 elif test -x objdump$build_exeext; then | |
1991 gcc_cv_objdump=./objdump$build_exeext | |
1992 elif test -x $OBJDUMP_FOR_TARGET; then | |
1993 gcc_cv_objdump="$OBJDUMP_FOR_TARGET" | |
1994 else | |
1995 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
1996 fi]) | |
1997 | |
1998 AC_MSG_CHECKING(what objdump to use) | |
1999 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then | |
2000 # Single tree build which includes binutils. | |
2001 AC_MSG_RESULT(newly built objdump) | |
2002 elif test x$gcc_cv_objdump = x; then | |
2003 AC_MSG_RESULT(not found) | |
2004 else | |
2005 AC_MSG_RESULT($gcc_cv_objdump) | |
2006 fi | |
2007 | |
2008 # Figure out what readelf we will be using. | |
2009 AS_VAR_SET_IF(gcc_cv_readelf,, [ | |
2010 if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
2011 && test -f ../binutils/Makefile \ | |
2012 && test x$build = x$host; then | |
2013 # Single tree build which includes binutils. | |
2014 gcc_cv_readelf=../binutils/readelf$build_exeext | |
2015 elif test -x readelf$build_exeext; then | |
2016 gcc_cv_readelf=./readelf$build_exeext | |
2017 else | |
2018 AC_PATH_PROG(gcc_cv_readelf, readelf) | |
2019 fi]) | |
2020 | |
2021 AC_MSG_CHECKING(what readelf to use) | |
2022 if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then | |
2023 # Single tree build which includes binutils. | |
2024 AC_MSG_RESULT(newly built readelf) | |
2025 elif test x$gcc_cv_readelf = x; then | |
2026 AC_MSG_RESULT(not found) | |
2027 else | |
2028 AC_MSG_RESULT($gcc_cv_readelf) | |
2029 fi | |
2030 | |
2031 # Figure out what assembler alignment features are present. | |
2032 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, | |
2033 [2,6,0],, | |
2034 [.balign 4 | |
2035 .p2align 2],, | |
2036 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2037 [Define if your assembler supports .balign and .p2align.])]) | |
2038 | |
2039 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2040 [2,8,0],, | |
2041 [.p2align 4,,7],, | |
2042 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2043 [Define if your assembler supports specifying the maximum number | |
2044 of bytes to skip when using the GAS .p2align command.])]) | |
2045 | |
2046 gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, | |
2047 [2,8,0],, | |
2048 [.literal16],, | |
2049 [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2050 [Define if your assembler supports .literal16.])]) | |
2051 | |
2052 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, | |
2053 [elf,2,9,0],, | |
2054 [conftest_label1: .word 0 | |
2055 .subsection -1 | |
2056 conftest_label2: .word 0 | |
2057 .previous], | |
2058 [if test x$gcc_cv_nm != x; then | |
2059 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2060 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2061 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2062 then : | |
2063 else gcc_cv_as_subsection_m1=yes | |
2064 fi | |
2065 rm -f conftest.nm1 conftest.nm2 | |
2066 fi], | |
2067 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2068 [Define if your assembler supports .subsection and .subsection -1 starts | |
2069 emitting at the beginning of your section.])]) | |
2070 | |
2071 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2072 [2,2,0],, | |
2073 [ .weak foobar],, | |
2074 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2075 | |
2076 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, | |
2077 [2,17,0],, | |
2078 [ .weakref foobar, barfnot],, | |
2079 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2080 | |
2081 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, | |
2082 [2,15,91],, | |
2083 [ .SPACE $TEXT$ | |
2084 .NSUBSPA $CODE$,COMDAT],, | |
2085 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2086 | |
2087 # .hidden needs to be supported in both the assembler and the linker, | |
2088 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2089 # This is irritatingly difficult to feature test for; we have to check the | |
2090 # date string after the version number. If we've got an in-tree | |
2091 # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2092 # to be safe. | |
2093 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2094 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2095 [elf,2,13,0],, | |
2096 [ .hidden foobar | |
2097 foobar:]) | |
2098 | |
2099 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2100 [if test $in_tree_ld = yes ; then | |
2101 gcc_cv_ld_hidden=no | |
2102 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2103 && test $in_tree_ld_is_elf = yes; then | |
2104 gcc_cv_ld_hidden=yes | |
2105 fi | |
2106 else | |
2107 changequote(,)dnl | |
2108 gcc_cv_ld_hidden=yes | |
2109 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
2110 if echo "$ld_ver" | grep GNU > /dev/null; then | |
2111 ld_vers=`echo $ld_ver | sed -n \ | |
2112 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2113 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` | |
2114 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2115 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2116 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
2117 if test 0"$ld_date" -lt 20020404; then | |
2118 if test -n "$ld_date"; then | |
2119 # If there was date string, but was earlier than 2002-04-04, fail | |
2120 gcc_cv_ld_hidden=no | |
2121 elif test -z "$ld_vers"; then | |
2122 # If there was no date string nor ld version number, something is wrong | |
2123 gcc_cv_ld_hidden=no | |
2124 else | |
2125 test -z "$ld_vers_patch" && ld_vers_patch=0 | |
2126 if test "$ld_vers_major" -lt 2; then | |
2127 gcc_cv_ld_hidden=no | |
2128 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2129 gcc_cv_ld_hidden="no" | |
2130 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2131 gcc_cv_ld_hidden=no | |
2132 fi | |
2133 fi | |
2134 fi | |
2135 else | |
2136 case "${target}" in | |
2137 hppa64*-*-hpux* | ia64*-*-hpux*) | |
2138 gcc_cv_ld_hidden=yes | |
2139 ;; | |
2140 *-*-solaris2.9* | *-*-solaris2.1[0-9]*) | |
2141 gcc_cv_ld_hidden=yes | |
2142 ;; | |
2143 *) | |
2144 gcc_cv_ld_hidden=no | |
2145 ;; | |
2146 esac | |
2147 fi | |
2148 changequote([,])dnl | |
2149 fi]) | |
2150 libgcc_visibility=no | |
2151 AC_SUBST(libgcc_visibility) | |
2152 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) | |
2153 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then | |
2154 libgcc_visibility=yes | |
2155 AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2156 [Define if your assembler and linker support .hidden.]) | |
2157 fi | |
2158 | |
2159 AC_MSG_CHECKING(linker read-only and read-write section mixing) | |
2160 gcc_cv_ld_ro_rw_mix=unknown | |
2161 if test $in_tree_ld = yes ; then | |
2162 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2163 && test $in_tree_ld_is_elf = yes; then | |
2164 gcc_cv_ld_ro_rw_mix=read-write | |
2165 fi | |
2166 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2167 echo '.section myfoosect, "a"' > conftest1.s | |
2168 echo '.section myfoosect, "aw"' > conftest2.s | |
2169 echo '.byte 1' >> conftest2.s | |
2170 echo '.section myfoosect, "a"' > conftest3.s | |
2171 echo '.byte 0' >> conftest3.s | |
2172 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2173 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2174 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2175 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2176 conftest2.o conftest3.o > /dev/null 2>&1; then | |
2177 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2178 | sed -e '/myfoosect/!d' -e N` | |
2179 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2180 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2181 gcc_cv_ld_ro_rw_mix=read-only | |
2182 else | |
2183 gcc_cv_ld_ro_rw_mix=read-write | |
2184 fi | |
2185 fi | |
2186 fi | |
2187 changequote(,)dnl | |
2188 rm -f conftest.* conftest[123].* | |
2189 changequote([,])dnl | |
2190 fi | |
2191 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2192 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2193 [Define if your linker links a mix of read-only | |
2194 and read-write sections into a read-write section.]) | |
2195 fi | |
2196 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2197 | |
2198 # Check if we have .[us]leb128, and support symbol arithmetic with it. | |
2199 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2200 [elf,2,11,0],, | |
2201 [ .data | |
2202 .uleb128 L2 - L1 | |
2203 L1: | |
2204 .uleb128 1280 | |
2205 .sleb128 -1010 | |
2206 L2:], | |
2207 [# GAS versions before 2.11 do not support uleb128, | |
2208 # despite appearing to. | |
2209 # ??? There exists an elf-specific test that will crash | |
2210 # the assembler. Perhaps it's better to figure out whether | |
2211 # arbitrary sections are supported and try the test. | |
2212 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` | |
2213 if echo "$as_ver" | grep GNU > /dev/null; then | |
2214 changequote(,)dnl | |
2215 as_vers=`echo $as_ver | sed -n \ | |
2216 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` | |
2217 as_major=`expr "$as_vers" : '\([0-9]*\)'` | |
2218 as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'` | |
2219 changequote([,])dnl | |
2220 if test $as_major -eq 2 && test $as_minor -lt 11 | |
2221 then : | |
2222 else gcc_cv_as_leb128=yes | |
2223 fi | |
2224 fi], | |
2225 [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2226 [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2227 | |
2228 # Check if we have assembler support for unwind directives. | |
2229 gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive, | |
2230 ,, | |
2231 [ .text | |
2232 .cfi_startproc | |
2233 .cfi_offset 0, 0 | |
2234 .cfi_same_value 1 | |
2235 .cfi_def_cfa 1, 2 | |
2236 .cfi_escape 1, 2, 3, 4, 5 | |
2237 .cfi_endproc], | |
2238 [case "$target" in | |
2239 *-*-solaris*) | |
2240 # If the linker used on Solaris (like Sun ld) isn't capable of merging | |
2241 # read-only and read-write sections, we need to make sure that the | |
2242 # assembler used emits read-write .eh_frame sections. | |
2243 if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then | |
2244 if test "x$gcc_cv_objdump" != x; then | |
2245 if $gcc_cv_objdump -h conftest.o 2>/dev/null | \ | |
2246 sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then | |
2247 gcc_cv_as_cfi_directive=no | |
2248 else | |
2249 gcc_cv_as_cfi_directive=yes | |
2250 fi | |
2251 else | |
2252 # no objdump, err on the side of caution | |
2253 gcc_cv_as_cfi_directive=no | |
2254 fi | |
2255 else | |
2256 gcc_cv_as_cfi_directive=yes | |
2257 fi | |
2258 ;; | |
2259 *-*-*) | |
2260 gcc_cv_as_cfi_directive=yes | |
2261 ;; | |
2262 esac]) | |
2263 if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then | |
2264 gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working, | |
2265 ,, | |
2266 [ .text | |
2267 .cfi_startproc | |
2268 .cfi_adjust_cfa_offset 64 | |
2269 .skip 512, 0 | |
2270 .cfi_adjust_cfa_offset 128 | |
2271 .cfi_endproc], | |
2272 [ | |
2273 changequote(,)dnl | |
2274 if $gcc_cv_readelf -wf conftest.o 2>/dev/null \ | |
2275 | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then | |
2276 gcc_cv_as_cfi_advance_working=yes | |
2277 fi | |
2278 changequote([,])dnl | |
2279 ]) | |
2280 else | |
2281 # no readelf, err on the side of caution | |
2282 gcc_cv_as_cfi_advance_working=no | |
2283 fi | |
2284 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE, | |
2285 [`if test $gcc_cv_as_cfi_directive = yes \ | |
2286 && test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`], | |
2287 [Define 0/1 if your assembler supports CFI directives.]) | |
2288 | |
2289 gcc_GAS_CHECK_FEATURE([cfi personality directive], | |
2290 gcc_cv_as_cfi_personality_directive, ,, | |
2291 [ .text | |
2292 .cfi_startproc | |
2293 .cfi_personality 0, symbol | |
2294 .cfi_endproc]) | |
2295 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE, | |
2296 [`if test $gcc_cv_as_cfi_personality_directive = yes; | |
2297 then echo 1; else echo 0; fi`], | |
2298 [Define 0/1 if your assembler supports .cfi_personality.]) | |
2299 | |
2300 # GAS versions up to and including 2.11.0 may mis-optimize | |
2301 # .eh_frame data. | |
2302 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2303 [elf,2,12,0],, | |
2304 [ .text | |
2305 .LFB1: | |
2306 .4byte 0 | |
2307 .L1: | |
2308 .4byte 0 | |
2309 .LFE1: | |
2310 .section .eh_frame,"aw",@progbits | |
2311 __FRAME_BEGIN__: | |
2312 .4byte .LECIE1-.LSCIE1 | |
2313 .LSCIE1: | |
2314 .4byte 0x0 | |
2315 .byte 0x1 | |
2316 .ascii "z\0" | |
2317 .byte 0x1 | |
2318 .byte 0x78 | |
2319 .byte 0x1a | |
2320 .byte 0x0 | |
2321 .byte 0x4 | |
2322 .4byte 1 | |
2323 .p2align 1 | |
2324 .LECIE1: | |
2325 .LSFDE1: | |
2326 .4byte .LEFDE1-.LASFDE1 | |
2327 .LASFDE1: | |
2328 .4byte .LASFDE1-__FRAME_BEGIN__ | |
2329 .4byte .LFB1 | |
2330 .4byte .LFE1-.LFB1 | |
2331 .byte 0x4 | |
2332 .4byte .LFE1-.LFB1 | |
2333 .byte 0x4 | |
2334 .4byte .L1-.LFB1 | |
2335 .LEFDE1:], | |
2336 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. | |
2337 cat > conftest.lit <<EOF | |
2338 0000 10000000 00000000 017a0001 781a0004 .........z..x... | |
2339 0010 01000000 12000000 18000000 00000000 ................ | |
2340 0020 08000000 04080000 0044 .........D @&t@ | |
2341 EOF | |
2342 cat > conftest.big <<EOF | |
2343 0000 00000010 00000000 017a0001 781a0004 .........z..x... | |
2344 0010 00000001 00000012 00000018 00000000 ................ | |
2345 0020 00000008 04000000 0844 .........D @&t@ | |
2346 EOF | |
2347 # If the assembler didn't choke, and we can objdump, | |
2348 # and we got the correct data, then succeed. | |
2349 # The text in the here-document typically retains its unix-style line | |
2350 # endings, while the output of objdump will use host line endings. | |
2351 # Therefore, use diff -b for the comparisons. | |
2352 if test x$gcc_cv_objdump != x \ | |
2353 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2354 | tail -3 > conftest.got \ | |
2355 && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ | |
2356 || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
2357 then | |
2358 gcc_cv_as_eh_frame=yes | |
2359 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2360 gcc_cv_as_eh_frame=buggy | |
2361 else | |
2362 # Uh oh, what do we do now? | |
2363 gcc_cv_as_eh_frame=no | |
2364 fi]) | |
2365 | |
2366 if test $gcc_cv_as_eh_frame = buggy; then | |
2367 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2368 [Define if your assembler mis-optimizes .eh_frame data.]) | |
2369 fi | |
2370 | |
2371 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2372 [elf,2,12,0], [--fatal-warnings], | |
2373 [.section .rodata.str, "aMS", @progbits, 1]) | |
2374 if test $gcc_cv_as_shf_merge = no; then | |
2375 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2376 [elf,2,12,0], [--fatal-warnings], | |
2377 [.section .rodata.str, "aMS", %progbits, 1]) | |
2378 fi | |
2379 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, | |
2380 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2381 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
2382 | |
2383 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, | |
2384 [elf,2,16,0], [--fatal-warnings], | |
2385 [.section .text,"axG",@progbits,.foo,comdat]) | |
2386 if test $gcc_cv_as_comdat_group = yes; then | |
2387 gcc_cv_as_comdat_group_percent=no | |
2388 else | |
2389 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
2390 [elf,2,16,0], [--fatal-warnings], | |
2391 [.section .text,"axG",%progbits,.foo,comdat]) | |
2392 fi | |
2393 if test $in_tree_ld != yes && test x"$ld_vers" != x; then | |
2394 comdat_group=yes | |
2395 if test 0"$ld_date" -lt 20050308; then | |
2396 if test -n "$ld_date"; then | |
2397 # If there was date string, but was earlier than 2005-03-08, fail | |
2398 comdat_group=no | |
2399 elif test "$ld_vers_major" -lt 2; then | |
2400 comdat_group=no | |
2401 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
2402 comdat_group=no | |
2403 fi | |
2404 fi | |
2405 else | |
2406 # assume linkers other than GNU ld don't support COMDAT group | |
2407 comdat_group=no | |
2408 fi | |
2409 if test $comdat_group = no; then | |
2410 gcc_cv_as_comdat_group=no | |
2411 gcc_cv_as_comdat_group_percent=no | |
2412 fi | |
2413 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
2414 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], | |
2415 [Define 0/1 if your assembler and linker support COMDAT groups.]) | |
2416 | |
2417 # Thread-local storage - the check is heavily parameterized. | |
2418 conftest_s= | |
2419 tls_first_major= | |
2420 tls_first_minor= | |
2421 tls_as_opt= | |
2422 case "$target" in | |
2423 changequote(,)dnl | |
2424 alpha*-*-*) | |
2425 conftest_s=' | |
2426 .section ".tdata","awT",@progbits | |
2427 foo: .long 25 | |
2428 .text | |
2429 ldq $27,__tls_get_addr($29) !literal!1 | |
2430 lda $16,foo($29) !tlsgd!1 | |
2431 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2432 ldq $27,__tls_get_addr($29) !literal!2 | |
2433 lda $16,foo($29) !tlsldm!2 | |
2434 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2435 ldq $1,foo($29) !gotdtprel | |
2436 ldah $2,foo($29) !dtprelhi | |
2437 lda $3,foo($2) !dtprello | |
2438 lda $4,foo($29) !dtprel | |
2439 ldq $1,foo($29) !gottprel | |
2440 ldah $2,foo($29) !tprelhi | |
2441 lda $3,foo($2) !tprello | |
2442 lda $4,foo($29) !tprel' | |
2443 tls_first_major=2 | |
2444 tls_first_minor=13 | |
2445 tls_as_opt=--fatal-warnings | |
2446 ;; | |
2447 cris-*-*|crisv32-*-*) | |
2448 conftest_s=' | |
2449 .section ".tdata","awT",@progbits | |
2450 x: .long 25 | |
2451 .text | |
2452 move.d x:IE,$r10 | |
2453 nop' | |
2454 tls_first_major=2 | |
2455 tls_first_minor=20 | |
2456 tls_as_opt=--fatal-warnings | |
2457 ;; | |
2458 frv*-*-*) | |
2459 conftest_s=' | |
2460 .section ".tdata","awT",@progbits | |
2461 x: .long 25 | |
2462 .text | |
2463 call #gettlsoff(x)' | |
2464 tls_first_major=2 | |
2465 tls_first_minor=14 | |
2466 ;; | |
2467 hppa*-*-linux*) | |
2468 conftest_s=' | |
2469 t1: .reg %r20 | |
2470 t2: .reg %r21 | |
2471 gp: .reg %r19 | |
2472 .section ".tdata","awT",@progbits | |
2473 foo: .long 25 | |
2474 .text | |
2475 .align 4 | |
2476 addil LT%foo-$tls_gdidx$,gp | |
2477 ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
2478 b __tls_get_addr | |
2479 nop | |
2480 addil LT%foo-$tls_ldidx$,gp | |
2481 b __tls_get_addr | |
2482 ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
2483 addil LR%foo-$tls_dtpoff$,%ret0 | |
2484 ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
2485 mfctl %cr27,%t1 | |
2486 addil LT%foo-$tls_ieoff$,gp | |
2487 ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
2488 add %t1,%t2,%t3 | |
2489 mfctl %cr27,%t1 | |
2490 addil LR%foo-$tls_leoff$,%t1 | |
2491 ldo RR%foo-$tls_leoff$(%r1),%t2' | |
2492 tls_first_major=2 | |
2493 tls_first_minor=15 | |
2494 tls_as_opt=--fatal-warnings | |
2495 ;; | |
2496 arm*-*-*) | |
2497 conftest_s=' | |
2498 .section ".tdata","awT",%progbits | |
2499 foo: .long 25 | |
2500 .text | |
2501 .word foo(gottpoff) | |
2502 .word foo(tpoff) | |
2503 .word foo(tlsgd) | |
2504 .word foo(tlsldm) | |
2505 .word foo(tlsldo)' | |
2506 tls_first_major=2 | |
2507 tls_first_minor=17 | |
2508 ;; | |
2509 i[34567]86-*-*) | |
2510 conftest_s=' | |
2511 .section ".tdata","awT",@progbits | |
2512 foo: .long 25 | |
2513 .text | |
2514 movl %gs:0, %eax | |
2515 leal foo@TLSGD(,%ebx,1), %eax | |
2516 leal foo@TLSLDM(%ebx), %eax | |
2517 leal foo@DTPOFF(%eax), %edx | |
2518 movl foo@GOTTPOFF(%ebx), %eax | |
2519 subl foo@GOTTPOFF(%ebx), %eax | |
2520 addl foo@GOTNTPOFF(%ebx), %eax | |
2521 movl foo@INDNTPOFF, %eax | |
2522 movl $foo@TPOFF, %eax | |
2523 subl $foo@TPOFF, %eax | |
2524 leal foo@NTPOFF(%ecx), %eax' | |
2525 tls_first_major=2 | |
2526 tls_first_minor=14 | |
2527 tls_as_opt=--fatal-warnings | |
2528 ;; | |
2529 x86_64-*-*) | |
2530 conftest_s=' | |
2531 .section ".tdata","awT",@progbits | |
2532 foo: .long 25 | |
2533 .text | |
2534 movq %fs:0, %rax | |
2535 leaq foo@TLSGD(%rip), %rdi | |
2536 leaq foo@TLSLD(%rip), %rdi | |
2537 leaq foo@DTPOFF(%rax), %rdx | |
2538 movq foo@GOTTPOFF(%rip), %rax | |
2539 movq $foo@TPOFF, %rax' | |
2540 tls_first_major=2 | |
2541 tls_first_minor=14 | |
2542 tls_as_opt=--fatal-warnings | |
2543 ;; | |
2544 ia64-*-*) | |
2545 conftest_s=' | |
2546 .section ".tdata","awT",@progbits | |
2547 foo: data8 25 | |
2548 .text | |
2549 addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2550 addl r17 = @ltoff(@dtprel(foo#)), gp | |
2551 addl r18 = @ltoff(@tprel(foo#)), gp | |
2552 addl r19 = @dtprel(foo#), gp | |
2553 adds r21 = @dtprel(foo#), r13 | |
2554 movl r23 = @dtprel(foo#) | |
2555 addl r20 = @tprel(foo#), gp | |
2556 adds r22 = @tprel(foo#), r13 | |
2557 movl r24 = @tprel(foo#)' | |
2558 tls_first_major=2 | |
2559 tls_first_minor=13 | |
2560 tls_as_opt=--fatal-warnings | |
2561 ;; | |
2562 mips*-*-*) | |
2563 conftest_s=' | |
2564 .section .tdata,"awT",@progbits | |
2565 x: | |
2566 .word 2 | |
2567 .text | |
2568 addiu $4, $28, %tlsgd(x) | |
2569 addiu $4, $28, %tlsldm(x) | |
2570 lui $4, %dtprel_hi(x) | |
2571 addiu $4, $4, %dtprel_lo(x) | |
2572 lw $4, %gottprel(x)($28) | |
2573 lui $4, %tprel_hi(x) | |
2574 addiu $4, $4, %tprel_lo(x)' | |
2575 tls_first_major=2 | |
2576 tls_first_minor=16 | |
2577 tls_as_opt='-32 --fatal-warnings' | |
2578 ;; | |
2579 powerpc-*-*) | |
2580 conftest_s=' | |
2581 .section ".tdata","awT",@progbits | |
2582 .align 2 | |
2583 ld0: .space 4 | |
2584 ld1: .space 4 | |
2585 x1: .space 4 | |
2586 x2: .space 4 | |
2587 x3: .space 4 | |
2588 .text | |
2589 addi 3,31,ld0@got@tlsgd | |
2590 bl __tls_get_addr | |
2591 addi 3,31,x1@got@tlsld | |
2592 bl __tls_get_addr | |
2593 addi 9,3,x1@dtprel | |
2594 addis 9,3,x2@dtprel@ha | |
2595 addi 9,9,x2@dtprel@l | |
2596 lwz 9,x3@got@tprel(31) | |
2597 add 9,9,x@tls | |
2598 addi 9,2,x1@tprel | |
2599 addis 9,2,x2@tprel@ha | |
2600 addi 9,9,x2@tprel@l' | |
2601 tls_first_major=2 | |
2602 tls_first_minor=14 | |
2603 tls_as_opt="-a32 --fatal-warnings" | |
2604 ;; | |
2605 powerpc64-*-*) | |
2606 conftest_s=' | |
2607 .section ".tdata","awT",@progbits | |
2608 .align 3 | |
2609 ld0: .space 8 | |
2610 ld1: .space 8 | |
2611 x1: .space 8 | |
2612 x2: .space 8 | |
2613 x3: .space 8 | |
2614 .text | |
2615 addi 3,2,ld0@got@tlsgd | |
2616 bl .__tls_get_addr | |
2617 nop | |
2618 addi 3,2,ld1@toc | |
2619 bl .__tls_get_addr | |
2620 nop | |
2621 addi 3,2,x1@got@tlsld | |
2622 bl .__tls_get_addr | |
2623 nop | |
2624 addi 9,3,x1@dtprel | |
2625 bl .__tls_get_addr | |
2626 nop | |
2627 addis 9,3,x2@dtprel@ha | |
2628 addi 9,9,x2@dtprel@l | |
2629 bl .__tls_get_addr | |
2630 nop | |
2631 ld 9,x3@got@dtprel(2) | |
2632 add 9,9,3 | |
2633 bl .__tls_get_addr | |
2634 nop' | |
2635 tls_first_major=2 | |
2636 tls_first_minor=14 | |
2637 tls_as_opt="-a64 --fatal-warnings" | |
2638 ;; | |
2639 s390-*-*) | |
2640 conftest_s=' | |
2641 .section ".tdata","awT",@progbits | |
2642 foo: .long 25 | |
2643 .text | |
2644 .long foo@TLSGD | |
2645 .long foo@TLSLDM | |
2646 .long foo@DTPOFF | |
2647 .long foo@NTPOFF | |
2648 .long foo@GOTNTPOFF | |
2649 .long foo@INDNTPOFF | |
2650 l %r1,foo@GOTNTPOFF(%r12) | |
2651 l %r1,0(%r1):tls_load:foo | |
2652 bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2653 bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2654 tls_first_major=2 | |
2655 tls_first_minor=14 | |
2656 tls_as_opt="-m31 --fatal-warnings" | |
2657 ;; | |
2658 s390x-*-*) | |
2659 conftest_s=' | |
2660 .section ".tdata","awT",@progbits | |
2661 foo: .long 25 | |
2662 .text | |
2663 .quad foo@TLSGD | |
2664 .quad foo@TLSLDM | |
2665 .quad foo@DTPOFF | |
2666 .quad foo@NTPOFF | |
2667 .quad foo@GOTNTPOFF | |
2668 lg %r1,foo@GOTNTPOFF(%r12) | |
2669 larl %r1,foo@INDNTPOFF | |
2670 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2671 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2672 tls_first_major=2 | |
2673 tls_first_minor=14 | |
2674 tls_as_opt="-m64 -Aesame --fatal-warnings" | |
2675 ;; | |
2676 sh-*-* | sh[34]-*-*) | |
2677 conftest_s=' | |
2678 .section ".tdata","awT",@progbits | |
2679 foo: .long 25 | |
2680 .text | |
2681 .long foo@TLSGD | |
2682 .long foo@TLSLDM | |
2683 .long foo@DTPOFF | |
2684 .long foo@GOTTPOFF | |
2685 .long foo@TPOFF' | |
2686 tls_first_major=2 | |
2687 tls_first_minor=13 | |
2688 tls_as_opt=--fatal-warnings | |
2689 ;; | |
2690 sparc*-*-*) | |
2691 case "$target" in | |
2692 sparc*-sun-solaris2.[56789]*) | |
2693 # TLS was introduced in the Solaris 9 4/04 release but | |
2694 # we do not enable it by default on Solaris 9 either. | |
2695 if test "x$enable_tls" = xyes ; then | |
2696 on_solaris=yes | |
2697 else | |
2698 enable_tls=no; | |
2699 fi | |
2700 ;; | |
2701 sparc*-sun-solaris2.*) | |
2702 on_solaris=yes | |
2703 ;; | |
2704 *) | |
2705 on_solaris=no | |
2706 ;; | |
2707 esac | |
2708 if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2709 conftest_s=' | |
2710 .section ".tdata",#alloc,#write,#tls | |
2711 foo: .long 25 | |
2712 .text | |
2713 sethi %tgd_hi22(foo), %o0 | |
2714 add %o0, %tgd_lo10(foo), %o1 | |
2715 add %l7, %o1, %o0, %tgd_add(foo) | |
2716 call __tls_get_addr, %tgd_call(foo) | |
2717 sethi %tldm_hi22(foo), %l1 | |
2718 add %l1, %tldm_lo10(foo), %l2 | |
2719 add %l7, %l2, %o0, %tldm_add(foo) | |
2720 call __tls_get_addr, %tldm_call(foo) | |
2721 sethi %tldo_hix22(foo), %l3 | |
2722 xor %l3, %tldo_lox10(foo), %l4 | |
2723 add %o0, %l4, %l5, %tldo_add(foo) | |
2724 sethi %tie_hi22(foo), %o3 | |
2725 add %o3, %tie_lo10(foo), %o3 | |
2726 ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2727 add %g7, %o2, %o4, %tie_add(foo) | |
2728 sethi %tle_hix22(foo), %l1 | |
2729 xor %l1, %tle_lox10(foo), %o5 | |
2730 ld [%g7 + %o5], %o1' | |
2731 tls_first_major=0 | |
2732 tls_first_minor=0 | |
2733 else | |
2734 conftest_s=' | |
2735 .section ".tdata","awT",@progbits | |
2736 foo: .long 25 | |
2737 .text | |
2738 sethi %tgd_hi22(foo), %o0 | |
2739 add %o0, %tgd_lo10(foo), %o1 | |
2740 add %l7, %o1, %o0, %tgd_add(foo) | |
2741 call __tls_get_addr, %tgd_call(foo) | |
2742 sethi %tldm_hi22(foo), %l1 | |
2743 add %l1, %tldm_lo10(foo), %l2 | |
2744 add %l7, %l2, %o0, %tldm_add(foo) | |
2745 call __tls_get_addr, %tldm_call(foo) | |
2746 sethi %tldo_hix22(foo), %l3 | |
2747 xor %l3, %tldo_lox10(foo), %l4 | |
2748 add %o0, %l4, %l5, %tldo_add(foo) | |
2749 sethi %tie_hi22(foo), %o3 | |
2750 add %o3, %tie_lo10(foo), %o3 | |
2751 ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2752 add %g7, %o2, %o4, %tie_add(foo) | |
2753 sethi %tle_hix22(foo), %l1 | |
2754 xor %l1, %tle_lox10(foo), %o5 | |
2755 ld [%g7 + %o5], %o1' | |
2756 tls_first_major=2 | |
2757 tls_first_minor=14 | |
2758 tls_as_opt="-32 --fatal-warnings" | |
2759 fi | |
2760 ;; | |
2761 xtensa*-*-*) | |
2762 conftest_s=' | |
2763 .section ".tdata","awT",@progbits | |
2764 foo: .long 25 | |
2765 .text | |
2766 movi a8, foo@TLSFUNC | |
2767 movi a10, foo@TLSARG | |
2768 callx8.tls a8, foo@TLSCALL' | |
2769 tls_first_major=2 | |
2770 tls_first_minor=19 | |
2771 ;; | |
2772 changequote([,])dnl | |
2773 esac | |
2774 set_have_as_tls=no | |
2775 if test "x$enable_tls" = xno ; then | |
2776 : # TLS explicitly disabled. | |
2777 elif test "x$enable_tls" = xyes ; then | |
2778 set_have_as_tls=yes # TLS explicitly enabled. | |
2779 elif test -z "$tls_first_major"; then | |
2780 : # If we don't have a check, assume no support. | |
2781 else | |
2782 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2783 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, | |
2784 [set_have_as_tls=yes]) | |
2785 fi | |
2786 if test $set_have_as_tls = yes ; then | |
2787 AC_DEFINE(HAVE_AS_TLS, 1, | |
2788 [Define if your assembler supports thread-local storage.]) | |
2789 fi | |
2790 | |
2791 # Target-specific assembler checks. | |
2792 | |
2793 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) | |
2794 gcc_cv_ld_static_dynamic=no | |
2795 if test $in_tree_ld = yes ; then | |
2796 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then | |
2797 gcc_cv_ld_static_dynamic=yes | |
2798 fi | |
2799 elif test x$gcc_cv_ld != x; then | |
2800 # Check if linker supports -Bstatic/-Bdynamic option | |
2801 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2802 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2803 gcc_cv_ld_static_dynamic=yes | |
2804 fi | |
2805 fi | |
2806 if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2807 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2808 [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2809 fi | |
2810 AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2811 | |
2812 if test x"$demangler_in_ld" = xyes; then | |
2813 AC_MSG_CHECKING(linker --demangle support) | |
2814 gcc_cv_ld_demangle=no | |
2815 if test $in_tree_ld = yes; then | |
2816 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2817 gcc_cv_ld_demangle=yes | |
2818 fi | |
2819 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2820 # Check if the GNU linker supports --demangle option | |
2821 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2822 gcc_cv_ld_demangle=yes | |
2823 fi | |
2824 fi | |
2825 if test x"$gcc_cv_ld_demangle" = xyes; then | |
2826 AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2827 [Define if your linker supports --demangle option.]) | |
2828 fi | |
2829 AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2830 fi | |
2831 | |
2832 case "$target" in | |
2833 # All TARGET_ABI_OSF targets. | |
2834 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
2835 gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2836 gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2837 [ .set nomacro | |
2838 .text | |
2839 extbl $3, $2, $3 !lituse_bytoff!1 | |
2840 ldq $2, a($29) !literal!1 | |
2841 ldq $4, b($29) !literal!2 | |
2842 ldq_u $3, 0($2) !lituse_base!1 | |
2843 ldq $27, f($29) !literal!5 | |
2844 jsr $26, ($27), f !lituse_jsr!5 | |
2845 ldah $29, 0($26) !gpdisp!3 | |
2846 lda $0, c($29) !gprel | |
2847 ldah $1, d($29) !gprelhigh | |
2848 lda $1, d($1) !gprellow | |
2849 lda $29, 0($29) !gpdisp!3],, | |
2850 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2851 [Define if your assembler supports explicit relocations.])]) | |
2852 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], | |
2853 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
2854 [ .set nomacro | |
2855 .text | |
2856 ldq $27, a($29) !literal!1 | |
2857 jsr $26, ($27), a !lituse_jsrdirect!1],, | |
2858 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
2859 [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
2860 ;; | |
2861 | |
2862 cris-*-*) | |
2863 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2864 gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2865 [-no-mul-bug-abort], [.text],, | |
2866 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2867 [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2868 ;; | |
2869 | |
2870 sparc*-*-*) | |
2871 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2872 [.register %g2, #scratch],, | |
2873 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2874 [Define if your assembler supports .register.])]) | |
2875 | |
2876 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2877 [-relax], [.text],, | |
2878 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2879 [Define if your assembler supports -relax option.])]) | |
2880 | |
2881 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2882 gcc_cv_as_sparc_ua_pcrel,, | |
2883 [-K PIC], | |
2884 [.text | |
2885 foo: | |
2886 nop | |
2887 .data | |
2888 .align 4 | |
2889 .byte 0 | |
2890 .uaword %r_disp32(foo)], | |
2891 [if test x$gcc_cv_ld != x \ | |
2892 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2893 gcc_cv_as_sparc_ua_pcrel=yes | |
2894 fi | |
2895 rm -f conftest], | |
2896 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
2897 [Define if your assembler and linker support unaligned PC relative relocs.]) | |
2898 | |
2899 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], | |
2900 gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2901 [-K PIC], | |
2902 [.data | |
2903 .align 4 | |
2904 .byte 0x31 | |
2905 .uaword %r_disp32(foo) | |
2906 .byte 0x32, 0x33, 0x34 | |
2907 .global foo | |
2908 .hidden foo | |
2909 foo: | |
2910 .skip 4], | |
2911 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2912 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2913 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2914 | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2915 if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2916 | grep 'DISP32' > /dev/null 2>&1; then | |
2917 : | |
2918 else | |
2919 gcc_cv_as_sparc_ua_pcrel_hidden=yes | |
2920 fi | |
2921 fi | |
2922 rm -f conftest], | |
2923 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2924 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2925 ]) # unaligned pcrel relocs | |
2926 | |
2927 gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2928 gcc_cv_as_sparc_offsetable_lo10,, | |
2929 [-xarch=v9], | |
2930 [.text | |
2931 or %g1, %lo(ab) + 12, %g1 | |
2932 or %g1, %lo(ab + 12), %g1], | |
2933 [if test x$gcc_cv_objdump != x \ | |
2934 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ | |
2935 | grep ' 82106000 82106000' > /dev/null 2>&1; then | |
2936 gcc_cv_as_sparc_offsetable_lo10=yes | |
2937 fi], | |
2938 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2939 [Define if your assembler supports offsetable %lo().])]) | |
2940 ;; | |
2941 | |
2942 changequote(,)dnl | |
2943 i[34567]86-*-* | x86_64-*-*) | |
2944 changequote([,])dnl | |
2945 case $target_os in | |
2946 cygwin* | pe | mingw32*) | |
2947 # Used for DWARF 2 in PE | |
2948 gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
2949 gcc_cv_as_ix86_pe_secrel32, | |
2950 [2,15,91],, | |
2951 [.text | |
2952 foo: nop | |
2953 .data | |
2954 .secrel32 foo], | |
2955 [if test x$gcc_cv_ld != x \ | |
2956 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
2957 gcc_cv_as_ix86_pe_secrel32=yes | |
2958 fi | |
2959 rm -f conftest], | |
2960 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
2961 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
2962 ;; | |
2963 esac | |
2964 | |
2965 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], | |
2966 gcc_cv_as_ix86_filds_fists, | |
2967 [2,9,0],, [filds mem; fists mem],, | |
2968 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1, | |
2969 [Define if your assembler uses the new HImode fild and fist notation.])]) | |
2970 | |
2971 gcc_GAS_CHECK_FEATURE([cmov syntax], | |
2972 gcc_cv_as_ix86_cmov_sun_syntax,,, | |
2973 [cmovl.l %edx, %eax],, | |
2974 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
2975 [Define if your assembler supports the Sun syntax for cmov.])]) | |
2976 | |
2977 gcc_GAS_CHECK_FEATURE([ffreep mnemonic], | |
2978 gcc_cv_as_ix86_ffreep,,, | |
2979 [ffreep %st(1)],, | |
2980 [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
2981 [Define if your assembler supports the ffreep mnemonic.])]) | |
2982 | |
2983 gcc_GAS_CHECK_FEATURE([sahf mnemonic], | |
2984 gcc_cv_as_ix86_sahf,,, | |
2985 [sahf],, | |
2986 [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, | |
2987 [Define if your assembler supports the sahf mnemonic.])]) | |
2988 | |
2989 gcc_GAS_CHECK_FEATURE([different section symbol subtraction], | |
2990 gcc_cv_as_ix86_diff_sect_delta,,, | |
2991 [.section .rodata | |
2992 .L1: | |
2993 .long .L2-.L1 | |
2994 .long .L3-.L1 | |
2995 .text | |
2996 .L3: nop | |
2997 .L2: nop],, | |
2998 [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
2999 [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
3000 | |
3001 # This one is used unconditionally by i386.[ch]; it is to be defined | |
3002 # to 1 if the feature is present, 0 otherwise. | |
3003 gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
3004 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
3005 [ .text | |
3006 .L0: | |
3007 nop | |
3008 .data | |
3009 .long .L0@GOTOFF]) | |
3010 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
3011 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
3012 [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
3013 ;; | |
3014 | |
3015 ia64*-*-*) | |
3016 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], | |
3017 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
3018 [ .text | |
3019 addl r15 = @ltoffx(x#), gp | |
3020 ;; | |
3021 ld8.mov r16 = [[r15]], x#],, | |
3022 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, | |
3023 [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
3024 | |
3025 ;; | |
3026 | |
3027 powerpc*-*-*) | |
3028 case $target in | |
3029 *-*-aix*) conftest_s=' .machine "pwr5" | |
3030 .csect .text[[PR]] | |
3031 mfcr 3,128';; | |
3032 *-*-darwin*) | |
3033 gcc_GAS_CHECK_FEATURE([.machine directive support], | |
3034 gcc_cv_as_machine_directive,,, | |
3035 [ .machine ppc7400]) | |
3036 if test x$gcc_cv_as_machine_directive != xyes; then | |
3037 echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
3038 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
3039 test x$build = x$target && exit 1 | |
3040 fi | |
3041 conftest_s=' .text | |
3042 mfcr r3,128';; | |
3043 *) conftest_s=' .machine power4 | |
3044 .text | |
3045 mfcr 3,128';; | |
3046 esac | |
3047 | |
3048 gcc_GAS_CHECK_FEATURE([mfcr field support], | |
3049 gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
3050 [$conftest_s],, | |
3051 [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
3052 [Define if your assembler supports mfcr field.])]) | |
3053 | |
3054 case $target in | |
3055 *-*-aix*) conftest_s=' .machine "pwr5" | |
3056 .csect .text[[PR]] | |
3057 popcntb 3,3';; | |
3058 *) conftest_s=' .machine power5 | |
3059 .text | |
3060 popcntb 3,3';; | |
3061 esac | |
3062 | |
3063 gcc_GAS_CHECK_FEATURE([popcntb support], | |
3064 gcc_cv_as_powerpc_popcntb, [2,17,0],, | |
3065 [$conftest_s],, | |
3066 [AC_DEFINE(HAVE_AS_POPCNTB, 1, | |
3067 [Define if your assembler supports popcntb field.])]) | |
3068 | |
3069 case $target in | |
3070 *-*-aix*) conftest_s=' .machine "pwr5x" | |
3071 .csect .text[[PR]] | |
3072 frin 1,1';; | |
3073 *) conftest_s=' .machine power5 | |
3074 .text | |
3075 frin 1,1';; | |
3076 esac | |
3077 | |
3078 gcc_GAS_CHECK_FEATURE([fp round support], | |
3079 gcc_cv_as_powerpc_fprnd, [2,17,0],, | |
3080 [$conftest_s],, | |
3081 [AC_DEFINE(HAVE_AS_FPRND, 1, | |
3082 [Define if your assembler supports fprnd.])]) | |
3083 | |
3084 case $target in | |
3085 *-*-aix*) conftest_s=' .machine "pwr6" | |
3086 .csect .text[[PR]] | |
3087 mffgpr 1,3';; | |
3088 *) conftest_s=' .machine power6 | |
3089 .text | |
3090 mffgpr 1,3';; | |
3091 esac | |
3092 | |
3093 gcc_GAS_CHECK_FEATURE([move fp gpr support], | |
3094 gcc_cv_as_powerpc_mfpgpr, [9,99,0],, | |
3095 [$conftest_s],, | |
3096 [AC_DEFINE(HAVE_AS_MFPGPR, 1, | |
3097 [Define if your assembler supports mffgpr and mftgpr.])]) | |
3098 | |
3099 case $target in | |
3100 *-*-aix*) conftest_s=' .csect .text[[PR]] | |
3101 LCF..0: | |
3102 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
3103 *-*-darwin*) | |
3104 conftest_s=' .text | |
3105 LCF0: | |
3106 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
3107 *) conftest_s=' .text | |
3108 .LCF0: | |
3109 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
3110 esac | |
3111 | |
3112 gcc_GAS_CHECK_FEATURE([rel16 relocs], | |
3113 gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
3114 [$conftest_s],, | |
3115 [AC_DEFINE(HAVE_AS_REL16, 1, | |
3116 [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
3117 | |
3118 case $target in | |
3119 *-*-aix*) conftest_s=' .machine "pwr6" | |
3120 .csect .text[[PR]] | |
3121 cmpb 3,4,5';; | |
3122 *) conftest_s=' .machine power6 | |
3123 .text | |
3124 cmpb 3,4,5';; | |
3125 esac | |
3126 | |
3127 gcc_GAS_CHECK_FEATURE([compare bytes support], | |
3128 gcc_cv_as_powerpc_cmpb, [9,99,0], -a32, | |
3129 [$conftest_s],, | |
3130 [AC_DEFINE(HAVE_AS_CMPB, 1, | |
3131 [Define if your assembler supports cmpb.])]) | |
3132 | |
3133 case $target in | |
3134 *-*-aix*) conftest_s=' .machine "pwr6" | |
3135 .csect .text[[PR]] | |
3136 dadd 1,2,3';; | |
3137 *) conftest_s=' .machine power6 | |
3138 .text | |
3139 dadd 1,2,3';; | |
3140 esac | |
3141 | |
3142 gcc_GAS_CHECK_FEATURE([decimal float support], | |
3143 gcc_cv_as_powerpc_dfp, [9,99,0], -a32, | |
3144 [$conftest_s],, | |
3145 [AC_DEFINE(HAVE_AS_DFP, 1, | |
3146 [Define if your assembler supports DFP instructions.])]) | |
3147 | |
3148 case $target in | |
3149 *-*-aix*) conftest_s=' .machine "pwr7" | |
3150 .csect .text[[PR]] | |
3151 lxvd2x 1,2,3';; | |
3152 *) conftest_s=' .machine power7 | |
3153 .text | |
3154 lxvd2x 1,2,3';; | |
3155 esac | |
3156 | |
3157 gcc_GAS_CHECK_FEATURE([vector-scalar support], | |
3158 gcc_cv_as_powerpc_vsx, [9,99,0], -a32, | |
3159 [$conftest_s],, | |
3160 [AC_DEFINE(HAVE_AS_VSX, 1, | |
3161 [Define if your assembler supports VSX instructions.])]) | |
3162 | |
3163 gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
3164 gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, | |
3165 [.gnu_attribute 4,1],, | |
3166 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3167 [Define if your assembler supports .gnu_attribute.])]) | |
3168 ;; | |
3169 | |
3170 mips*-*-*) | |
3171 gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
3172 gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
3173 [ lw $4,%gp_rel(foo)($4)],, | |
3174 [if test x$target_cpu_default = x | |
3175 then target_cpu_default=MASK_EXPLICIT_RELOCS | |
3176 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
3177 fi]) | |
3178 gcc_GAS_CHECK_FEATURE([-mno-shared support], | |
3179 gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
3180 [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
3181 [Define if the assembler understands -mno-shared.])]) | |
3182 | |
3183 gcc_GAS_CHECK_FEATURE([.gnu_attribute support], | |
3184 gcc_cv_as_mips_gnu_attribute, [2,18,0],, | |
3185 [.gnu_attribute 4,1],, | |
3186 [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, | |
3187 [Define if your assembler supports .gnu_attribute.])]) | |
3188 | |
3189 gcc_GAS_CHECK_FEATURE([.dtprelword support], | |
3190 gcc_cv_as_mips_dtprelword, [2,18,0],, | |
3191 [.section .tdata,"awT",@progbits | |
3192 x: | |
3193 .word 2 | |
3194 .text | |
3195 .dtprelword x+0x8000],, | |
3196 [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, | |
3197 [Define if your assembler supports .dtprelword.])]) | |
3198 ;; | |
3199 esac | |
3200 | |
3201 # Mips and HP-UX need the GNU assembler. | |
3202 # Linux on IA64 might be able to use the Intel assembler. | |
3203 | |
3204 case "$target" in | |
3205 mips*-*-* | *-*-hpux* ) | |
3206 if test x$gas_flag = xyes \ | |
3207 || test x"$host" != x"$build" \ | |
3208 || test ! -x "$gcc_cv_as" \ | |
3209 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
3210 : | |
3211 else | |
3212 echo "*** This configuration requires the GNU assembler" >&2 | |
3213 exit 1 | |
3214 fi | |
3215 ;; | |
3216 esac | |
3217 | |
3218 # ??? Not all targets support dwarf2 debug_line, even within a version | |
3219 # of gas. Moreover, we need to emit a valid instruction to trigger any | |
3220 # info to the output file. So, as supported targets are added to gas 2.11, | |
3221 # add some instruction here to (also) show we expect this might work. | |
3222 # ??? Once 2.11 is released, probably need to add first known working | |
3223 # version to the per-target configury. | |
3224 case "$target" in | |
3225 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ | |
3226 | x86_64*-*-* | hppa*-*-* | arm*-*-* \ | |
3227 | xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \ | |
3228 | spu-*-* | fido*-*-* | m32c-*-*) | |
3229 insn="nop" | |
3230 ;; | |
3231 ia64*-*-* | s390*-*-*) | |
3232 insn="nop 0" | |
3233 ;; | |
3234 mmix-*-*) | |
3235 insn="swym 0" | |
3236 ;; | |
3237 esac | |
3238 if test x"$insn" != x; then | |
3239 conftest_s="\ | |
3240 .file 1 \"conftest.s\" | |
3241 .loc 1 3 0 | |
3242 $insn" | |
3243 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
3244 gcc_cv_as_dwarf2_debug_line, | |
3245 [elf,2,11,0],, [$conftest_s], | |
3246 [if test x$gcc_cv_objdump != x \ | |
3247 && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
3248 | grep debug_line > /dev/null 2>&1; then | |
3249 gcc_cv_as_dwarf2_debug_line=yes | |
3250 fi]) | |
3251 | |
3252 # The .debug_line file table must be in the exact order that | |
3253 # we specified the files, since these indices are also used | |
3254 # by DW_AT_decl_file. Approximate this test by testing if | |
3255 # the assembler bitches if the same index is assigned twice. | |
3256 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
3257 gcc_cv_as_dwarf2_file_buggy,,, | |
3258 [ .file 1 "foo.s" | |
3259 .file 1 "bar.s"]) | |
3260 | |
3261 if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
3262 && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
3263 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, | |
3264 [Define if your assembler supports dwarf2 .file/.loc directives, | |
3265 and preserves file table indices exactly as given.]) | |
3266 fi | |
3267 | |
3268 gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
3269 gcc_cv_as_gdwarf2_flag, | |
3270 [elf,2,11,0], [--gdwarf2], [$insn],, | |
3271 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
3272 [Define if your assembler supports the --gdwarf2 option.])]) | |
3273 | |
3274 gcc_GAS_CHECK_FEATURE([--gstabs option], | |
3275 gcc_cv_as_gstabs_flag, | |
3276 [elf,2,11,0], [--gstabs], [$insn], | |
3277 [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
3278 # and warns about it, but still exits successfully. So check for | |
3279 # this. | |
3280 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
3281 then : | |
3282 else gcc_cv_as_gstabs_flag=yes | |
3283 fi], | |
3284 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
3285 [Define if your assembler supports the --gstabs option.])]) | |
3286 | |
3287 gcc_GAS_CHECK_FEATURE([--debug-prefix-map option], | |
3288 gcc_cv_as_debug_prefix_map_flag, | |
3289 [2,18,0], [--debug-prefix-map /a=/b], [$insn],, | |
3290 [AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1, | |
3291 [Define if your assembler supports the --debug-prefix-map option.])]) | |
3292 fi | |
3293 | |
3294 gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment, | |
3295 ,, | |
3296 [.lcomm bar,4,16],, | |
3297 [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, | |
3298 [Define if your assembler supports .lcomm with an alignment field.])]) | |
3299 | |
3300 AC_CACHE_CHECK([assembler for tolerance to line number 0], | |
3301 [gcc_cv_as_line_zero], | |
3302 [gcc_cv_as_line_zero=no | |
3303 if test $in_tree_gas = yes; then | |
3304 gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes]) | |
3305 elif test "x$gcc_cv_as" != x; then | |
3306 { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s | |
3307 if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) && | |
3308 test "x`cat conftest.out`" = x | |
3309 then | |
3310 gcc_cv_as_line_zero=yes | |
3311 else | |
3312 echo "configure: failed program was" >&AS_MESSAGE_LOG_FD | |
3313 cat conftest.s >&AS_MESSAGE_LOG_FD | |
3314 echo "configure: error output was" >&AS_MESSAGE_LOG_FD | |
3315 cat conftest.out >&AS_MESSAGE_LOG_FD | |
3316 fi | |
3317 rm -f conftest.o conftest.s conftest.out | |
3318 fi]) | |
3319 if test "x$gcc_cv_as_line_zero" = xyes; then | |
3320 AC_DEFINE([HAVE_AS_LINE_ZERO], 1, | |
3321 [Define if the assembler won't complain about a line such as # 0 "" 2.]) | |
3322 fi | |
3323 | |
3324 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) | |
3325 gcc_cv_ld_eh_frame_hdr=no | |
3326 if test $in_tree_ld = yes ; then | |
3327 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3328 && test $in_tree_ld_is_elf = yes; then | |
3329 gcc_cv_ld_eh_frame_hdr=yes | |
3330 fi | |
3331 elif test x$gcc_cv_ld != x; then | |
3332 # Check if linker supports --eh-frame-hdr option | |
3333 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
3334 gcc_cv_ld_eh_frame_hdr=yes | |
3335 fi | |
3336 fi | |
3337 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) | |
3338 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then | |
3339 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
3340 [Define if your linker supports --eh-frame-hdr option.]) | |
3341 fi | |
3342 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
3343 | |
3344 AC_MSG_CHECKING(linker position independent executable support) | |
3345 gcc_cv_ld_pie=no | |
3346 if test $in_tree_ld = yes ; then | |
3347 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3348 && test $in_tree_ld_is_elf = yes; then | |
3349 gcc_cv_ld_pie=yes | |
3350 fi | |
3351 elif test x$gcc_cv_ld != x; then | |
3352 # Check if linker supports -pie option | |
3353 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
3354 gcc_cv_ld_pie=yes | |
3355 fi | |
3356 fi | |
3357 if test x"$gcc_cv_ld_pie" = xyes; then | |
3358 AC_DEFINE(HAVE_LD_PIE, 1, | |
3359 [Define if your linker supports -pie option.]) | |
3360 fi | |
3361 AC_MSG_RESULT($gcc_cv_ld_pie) | |
3362 | |
3363 AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) | |
3364 gcc_cv_ld_eh_gc_sections=no | |
3365 if test $in_tree_ld = yes ; then | |
3366 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3367 && test $in_tree_ld_is_elf = yes; then | |
3368 gcc_cv_ld_eh_gc_sections=yes | |
3369 fi | |
3370 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3371 cat > conftest.s <<EOF | |
3372 .section .text | |
3373 .globl _start | |
3374 .type _start, @function | |
3375 _start: | |
3376 .long foo | |
3377 .size _start, .-_start | |
3378 .section .text.foo,"ax",@progbits | |
3379 .type foo, @function | |
3380 foo: | |
3381 .long 0 | |
3382 .size foo, .-foo | |
3383 .section .gcc_except_table.foo,"a",@progbits | |
3384 .L0: | |
3385 .long 0 | |
3386 .section .eh_frame,"a",@progbits | |
3387 .long .L0 | |
3388 EOF | |
3389 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3390 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3391 | grep "gc-sections option ignored" > /dev/null; then | |
3392 gcc_cv_ld_eh_gc_sections=no | |
3393 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3394 gcc_cv_ld_eh_gc_sections=yes | |
3395 # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. | |
3396 if test x$gcc_cv_as_comdat_group != xyes; then | |
3397 gcc_cv_ld_eh_gc_sections=no | |
3398 cat > conftest.s <<EOF | |
3399 .section .text | |
3400 .globl _start | |
3401 .type _start, @function | |
3402 _start: | |
3403 .long foo | |
3404 .size _start, .-_start | |
3405 .section .gnu.linkonce.t.foo,"ax",@progbits | |
3406 .type foo, @function | |
3407 foo: | |
3408 .long 0 | |
3409 .size foo, .-foo | |
3410 .section .gcc_except_table.foo,"a",@progbits | |
3411 .L0: | |
3412 .long 0 | |
3413 .section .eh_frame,"a",@progbits | |
3414 .long .L0 | |
3415 EOF | |
3416 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3417 if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3418 | grep "gc-sections option ignored" > /dev/null; then | |
3419 gcc_cv_ld_eh_gc_sections=no | |
3420 elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3421 gcc_cv_ld_eh_gc_sections=yes | |
3422 fi | |
3423 fi | |
3424 fi | |
3425 fi | |
3426 fi | |
3427 rm -f conftest.s conftest.o conftest | |
3428 fi | |
3429 case "$target" in | |
3430 hppa*-*-linux*) | |
3431 # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
3432 gcc_cv_ld_eh_gc_sections=no | |
3433 ;; | |
3434 esac | |
3435 if test x$gcc_cv_ld_eh_gc_sections = xyes; then | |
3436 AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
3437 [Define if your linker supports garbage collection of | |
3438 sections in presence of EH frames.]) | |
3439 fi | |
3440 AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
3441 | |
3442 # -------- | |
3443 # UNSORTED | |
3444 # -------- | |
3445 | |
3446 AC_CACHE_CHECK(linker --as-needed support, | |
3447 gcc_cv_ld_as_needed, | |
3448 [gcc_cv_ld_as_needed=no | |
3449 if test $in_tree_ld = yes ; then | |
3450 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3451 && test $in_tree_ld_is_elf = yes; then | |
3452 gcc_cv_ld_as_needed=yes | |
3453 fi | |
3454 elif test x$gcc_cv_ld != x; then | |
3455 # Check if linker supports --as-needed and --no-as-needed options | |
3456 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
3457 gcc_cv_ld_as_needed=yes | |
3458 fi | |
3459 fi | |
3460 ]) | |
3461 if test x"$gcc_cv_ld_as_needed" = xyes; then | |
3462 AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
3463 [Define if your linker supports --as-needed and --no-as-needed options.]) | |
3464 fi | |
3465 | |
3466 case "$target:$tm_file" in | |
3467 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) | |
3468 AC_CACHE_CHECK(linker support for omitting dot symbols, | |
3469 gcc_cv_ld_no_dot_syms, | |
3470 [gcc_cv_ld_no_dot_syms=no | |
3471 if test $in_tree_ld = yes ; then | |
3472 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
3473 gcc_cv_ld_no_dot_syms=yes | |
3474 fi | |
3475 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
3476 cat > conftest1.s <<EOF | |
3477 .text | |
3478 bl .foo | |
3479 EOF | |
3480 cat > conftest2.s <<EOF | |
3481 .section ".opd","aw" | |
3482 .align 3 | |
3483 .globl foo | |
3484 .type foo,@function | |
3485 foo: | |
3486 .quad .LEfoo,.TOC.@tocbase,0 | |
3487 .text | |
3488 .LEfoo: | |
3489 blr | |
3490 .size foo,.-.LEfoo | |
3491 EOF | |
3492 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3493 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3494 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3495 gcc_cv_ld_no_dot_syms=yes | |
3496 fi | |
3497 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3498 fi | |
3499 ]) | |
3500 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3501 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3502 [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3503 fi | |
3504 ;; | |
3505 esac | |
3506 | |
3507 AC_CACHE_CHECK(linker --sysroot support, | |
3508 gcc_cv_ld_sysroot, | |
3509 [gcc_cv_ld_sysroot=no | |
3510 if test $in_tree_ld = yes ; then | |
3511 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
3512 gcc_cv_ld_sysroot=yes | |
3513 fi | |
3514 elif test x$gcc_cv_ld != x; then | |
3515 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then | |
3516 gcc_cv_ld_sysroot=yes | |
3517 fi | |
3518 fi]) | |
3519 if test x"$gcc_cv_ld_sysroot" = xyes; then | |
3520 AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
3521 [Define if your linker supports --sysroot.]) | |
3522 fi | |
3523 | |
3524 if test x$with_sysroot = x && test x$host = x$target \ | |
3525 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
3526 && test "$prefix" != "NONE"; then | |
3527 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
3528 [Define to PREFIX/include if cpp should also search that directory.]) | |
3529 fi | |
3530 | |
3531 # Test for stack protector support in target C library. | |
3532 AC_CACHE_CHECK(__stack_chk_fail in target C library, | |
3533 gcc_cv_libc_provides_ssp, | |
3534 [gcc_cv_libc_provides_ssp=no | |
3535 case "$target" in | |
3536 *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu) | |
3537 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3538 if test "x$with_sysroot" = x; then | |
3539 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
3540 elif test "x$with_build_sysroot" != "x"; then | |
3541 glibc_header_dir="${with_build_sysroot}/usr/include" | |
3542 elif test "x$with_sysroot" = xyes; then | |
3543 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3544 else | |
3545 glibc_header_dir="${with_sysroot}/usr/include" | |
3546 fi | |
3547 else | |
3548 glibc_header_dir=/usr/include | |
3549 fi | |
3550 # glibc 2.4 and later provides __stack_chk_fail and | |
3551 # either __stack_chk_guard, or TLS access to stack guard canary. | |
3552 if test -f $glibc_header_dir/features.h \ | |
3553 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ | |
3554 $glibc_header_dir/features.h > /dev/null; then | |
3555 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ | |
3556 $glibc_header_dir/features.h > /dev/null; then | |
3557 gcc_cv_libc_provides_ssp=yes | |
3558 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \ | |
3559 $glibc_header_dir/features.h > /dev/null \ | |
3560 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ | |
3561 $glibc_header_dir/features.h > /dev/null; then | |
3562 gcc_cv_libc_provides_ssp=yes | |
3563 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \ | |
3564 $glibc_header_dir/features.h > /dev/null && \ | |
3565 test -f $glibc_header_dir/bits/uClibc_config.h && \ | |
3566 $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \ | |
3567 $glibc_header_dir/bits/uClibc_config.h > /dev/null; then | |
3568 gcc_cv_libc_provides_ssp=yes | |
3569 fi | |
3570 fi | |
3571 ;; | |
3572 *-*-gnu*) | |
3573 # Avoid complicated tests (see | |
3574 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now | |
3575 # simply assert that glibc does provide this, which is true for all | |
3576 # realistically usable GNU/Hurd configurations. | |
3577 gcc_cv_libc_provides_ssp=yes;; | |
3578 *-*-darwin*) | |
3579 AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], | |
3580 [echo "no __stack_chk_fail on this target"]) | |
3581 ;; | |
3582 *) gcc_cv_libc_provides_ssp=no ;; | |
3583 esac]) | |
3584 | |
3585 if test x$gcc_cv_libc_provides_ssp = xyes; then | |
3586 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
3587 [Define if your target C library provides stack protector support]) | |
3588 fi | |
3589 | |
3590 # Check if TFmode long double should be used by default or not. | |
3591 # Some glibc targets used DFmode long double, but with glibc 2.4 | |
3592 # and later they can use TFmode. | |
3593 case "$target" in | |
3594 powerpc*-*-linux* | \ | |
3595 powerpc*-*-gnu* | \ | |
3596 sparc*-*-linux* | \ | |
3597 s390*-*-linux* | \ | |
3598 alpha*-*-linux*) | |
3599 AC_ARG_WITH(long-double-128, | |
3600 [ --with-long-double-128 Use 128-bit long double by default.], | |
3601 gcc_cv_target_ldbl128="$with_long_double_128", | |
3602 [gcc_cv_target_ldbl128=no | |
3603 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3604 if test "x$with_sysroot" = x; then | |
3605 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
3606 elif test "x$with_build_sysroot" != "x"; then | |
3607 glibc_header_dir="${with_build_sysroot}/usr/include" | |
3608 elif test "x$with_sysroot" = xyes; then | |
3609 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3610 else | |
3611 glibc_header_dir="${with_sysroot}/usr/include" | |
3612 fi | |
3613 else | |
3614 glibc_header_dir=/usr/include | |
3615 fi | |
3616 changequote(,)dnl | |
3617 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ | |
3618 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ | |
3619 && gcc_cv_target_ldbl128=yes | |
3620 changequote([,])dnl | |
3621 ]) | |
3622 ;; | |
3623 esac | |
3624 if test x$gcc_cv_target_ldbl128 = xyes; then | |
3625 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
3626 [Define if TFmode long double should be the default]) | |
3627 fi | |
3628 | |
3629 # Find out what GC implementation we want, or may, use. | |
3630 AC_ARG_WITH(gc, | |
3631 [ --with-gc={page,zone} choose the garbage collection mechanism to use | |
3632 with the compiler], | |
3633 [case "$withval" in | |
3634 page) | |
3635 GGC=ggc-$withval | |
3636 ;; | |
3637 zone) | |
3638 GGC=ggc-$withval | |
3639 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3640 ;; | |
3641 *) | |
3642 AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3643 ;; | |
3644 esac], | |
3645 [GGC=ggc-page]) | |
3646 AC_SUBST(GGC) | |
3647 echo "Using $GGC for garbage collection." | |
3648 | |
3649 # Use the system's zlib library. | |
3650 zlibdir=-L../zlib | |
3651 zlibinc="-I\$(srcdir)/../zlib" | |
3652 AC_ARG_WITH(system-zlib, | |
3653 [ --with-system-zlib use installed libz], | |
3654 zlibdir= | |
3655 zlibinc= | |
3656 ) | |
3657 AC_SUBST(zlibdir) | |
3658 AC_SUBST(zlibinc) | |
3659 | |
3660 dnl Very limited version of automake's enable-maintainer-mode | |
3661 | |
3662 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3663 dnl maintainer-mode is disabled by default | |
3664 AC_ARG_ENABLE(maintainer-mode, | |
3665 [ --enable-maintainer-mode | |
3666 enable make rules and dependencies not useful | |
3667 (and sometimes confusing) to the casual installer], | |
3668 maintainer_mode=$enableval, | |
3669 maintainer_mode=no) | |
3670 | |
3671 AC_MSG_RESULT($maintainer_mode) | |
3672 | |
3673 if test "$maintainer_mode" = "yes"; then | |
3674 MAINT='' | |
3675 else | |
3676 MAINT='#' | |
3677 fi | |
3678 AC_SUBST(MAINT)dnl | |
3679 | |
3680 # -------------- | |
3681 # Language hooks | |
3682 # -------------- | |
3683 | |
3684 # Make empty files to contain the specs and options for each language. | |
3685 # Then add #include lines to for a compiler that has specs and/or options. | |
3686 | |
3687 subdirs= | |
3688 lang_opt_files= | |
3689 lang_specs_files= | |
3690 lang_tree_files= | |
3691 # These (without "all_") are set in each config-lang.in. | |
3692 # `language' must be a single word so is spelled singularly. | |
3693 all_languages= | |
3694 all_compilers= | |
3695 all_outputs='Makefile gccbug' | |
3696 # List of language makefile fragments. | |
3697 all_lang_makefrags= | |
3698 # List of language subdirectory makefiles. Deprecated. | |
3699 all_lang_makefiles= | |
3700 # Additional files for gengtype | |
3701 all_gtfiles="$target_gtfiles" | |
3702 | |
3703 # These are the languages that are set in --enable-languages, | |
3704 # and are available in the GCC tree. | |
3705 all_selected_languages= | |
3706 | |
3707 # Add the language fragments. | |
3708 # Languages are added via two mechanisms. Some information must be | |
3709 # recorded in makefile variables, these are defined in config-lang.in. | |
3710 # We accumulate them and plug them into the main Makefile. | |
3711 # The other mechanism is a set of hooks for each of the main targets | |
3712 # like `clean', `install', etc. | |
3713 | |
3714 language_hooks="Make-hooks" | |
3715 | |
3716 for lang in ${srcdir}/*/config-lang.in | |
3717 do | |
3718 changequote(,)dnl | |
3719 test "$lang" = "${srcdir}/*/config-lang.in" && continue | |
3720 | |
3721 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` | |
3722 if test "x$lang_alias" = x | |
3723 then | |
3724 echo "$lang doesn't set \$language." 1>&2 | |
3725 exit 1 | |
3726 fi | |
3727 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
3728 subdirs="$subdirs $subdir" | |
3729 | |
3730 # $gcc_subdir is where the gcc integration files are to be found | |
3731 # for a language, both for internal compiler purposes (compiler | |
3732 # sources implementing front-end to GCC tree converters), and for | |
3733 # build infrastructure purposes (Make-lang.in, etc.) | |
3734 # | |
3735 # This will be <subdir> (relative to $srcdir) if a line like | |
3736 # gcc_subdir="<subdir>" or gcc_subdir=<subdir> | |
3737 # is found in <langdir>/config-lang.in, and will remain <langdir> | |
3738 # otherwise. | |
3739 # | |
3740 # Except for the language alias (fetched above), the regular | |
3741 # "config-lang.in" contents are always retrieved from $gcc_subdir, | |
3742 # so a <langdir>/config-lang.in setting gcc_subdir typically sets | |
3743 # only this and the language alias. | |
3744 | |
3745 gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang` | |
3746 if [ "$gcc_subdir" = "" ]; then | |
3747 gcc_subdir="$subdir" | |
3748 fi | |
3749 | |
3750 case ",$enable_languages," in | |
3751 *,$lang_alias,*) | |
3752 all_selected_languages="$all_selected_languages $lang_alias" | |
3753 if test -f $srcdir/$gcc_subdir/lang-specs.h; then | |
3754 lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h" | |
3755 fi | |
3756 ;; | |
3757 esac | |
3758 changequote([,])dnl | |
3759 | |
3760 language= | |
3761 boot_language= | |
3762 compilers= | |
3763 outputs= | |
3764 gtfiles= | |
3765 subdir_requires= | |
3766 . ${srcdir}/$gcc_subdir/config-lang.in | |
3767 if test "x$language" = x | |
3768 then | |
3769 echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2 | |
3770 exit 1 | |
3771 fi | |
3772 | |
3773 ok=: | |
3774 case ",$enable_languages," in | |
3775 *,$lang_alias,*) ;; | |
3776 *) | |
3777 for i in $subdir_requires; do | |
3778 test -f "${srcdir}/$i/config-lang.in" && continue | |
3779 ok=false | |
3780 break | |
3781 done | |
3782 ;; | |
3783 esac | |
3784 $ok || continue | |
3785 | |
3786 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in" | |
3787 if test -f $srcdir/$gcc_subdir/lang.opt; then | |
3788 lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt" | |
3789 fi | |
3790 if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then | |
3791 lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def" | |
3792 fi | |
3793 if test -f ${srcdir}/$gcc_subdir/Makefile.in | |
3794 then all_lang_makefiles="$gcc_subdir/Makefile" | |
3795 fi | |
3796 all_languages="$all_languages $language" | |
3797 all_compilers="$all_compilers $compilers" | |
3798 all_outputs="$all_outputs $outputs" | |
3799 all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" | |
3800 done | |
3801 | |
3802 # Pick up gtfiles for c | |
3803 gtfiles= | |
3804 . ${srcdir}/c-config-lang.in | |
3805 all_gtfiles="$all_gtfiles [[c]] $gtfiles" | |
3806 | |
3807 check_languages= | |
3808 for language in $all_selected_languages | |
3809 do | |
3810 check_languages="$check_languages check-$language" | |
3811 done | |
3812 | |
3813 # We link each language in with a set of hooks, reached indirectly via | |
3814 # lang.${target}. Only do so for selected languages. | |
3815 | |
3816 rm -f Make-hooks | |
3817 touch Make-hooks | |
3818 target_list="all.cross start.encap rest.encap tags \ | |
3819 install-common install-man install-info install-pdf dvi pdf \ | |
3820 html uninstall info man srcextra srcman srcinfo \ | |
3821 mostlyclean clean distclean maintainer-clean" | |
3822 | |
3823 for t in $target_list | |
3824 do | |
3825 x= | |
3826 for lang in $all_selected_languages | |
3827 do | |
3828 x="$x $lang.$t" | |
3829 done | |
3830 echo "lang.$t: $x" >> Make-hooks | |
3831 done | |
3832 | |
3833 # -------- | |
3834 # UNSORTED | |
3835 # -------- | |
3836 | |
3837 # Create .gdbinit. | |
3838 | |
3839 echo "dir ." > .gdbinit | |
3840 echo "dir ${srcdir}" >> .gdbinit | |
3841 if test x$gdb_needs_out_file_path = xyes | |
3842 then | |
3843 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
3844 fi | |
3845 if test "x$subdirs" != x; then | |
3846 for s in $subdirs | |
3847 do | |
3848 echo "dir ${srcdir}/$s" >> .gdbinit | |
3849 done | |
3850 fi | |
3851 echo "source ${srcdir}/gdbinit.in" >> .gdbinit | |
3852 | |
3853 gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)' | |
3854 AC_SUBST(gcc_tooldir) | |
3855 AC_SUBST(dollar) | |
3856 | |
3857 # Find a directory in which to install a shared libgcc. | |
3858 | |
3859 AC_ARG_ENABLE(version-specific-runtime-libs, | |
3860 [ --enable-version-specific-runtime-libs | |
3861 specify that runtime libraries should be | |
3862 installed in a compiler-specific directory]) | |
3863 | |
3864 AC_ARG_WITH(slibdir, | |
3865 [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]], | |
3866 slibdir="$with_slibdir", | |
3867 if test "${enable_version_specific_runtime_libs+set}" = set; then | |
3868 slibdir='$(libsubdir)' | |
3869 elif test "$host" != "$target"; then | |
3870 slibdir='$(build_tooldir)/lib' | |
3871 else | |
3872 slibdir='$(libdir)' | |
3873 fi) | |
3874 AC_SUBST(slibdir) | |
3875 | |
3876 AC_ARG_WITH(datarootdir, | |
3877 [ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]], | |
3878 datarootdir="\${prefix}/$with_datarootdir", | |
3879 datarootdir='$(prefix)/share') | |
3880 AC_SUBST(datarootdir) | |
3881 | |
3882 AC_ARG_WITH(docdir, | |
3883 [ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]], | |
3884 docdir="\${prefix}/$with_docdir", | |
3885 docdir='$(datarootdir)') | |
3886 AC_SUBST(docdir) | |
3887 | |
3888 AC_ARG_WITH(htmldir, | |
3889 [ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]], | |
3890 htmldir="\${prefix}/$with_htmldir", | |
3891 htmldir='$(docdir)') | |
3892 AC_SUBST(htmldir) | |
3893 | |
3894 # Substitute configuration variables | |
3895 AC_SUBST(subdirs) | |
3896 AC_SUBST(srcdir) | |
3897 AC_SUBST(all_compilers) | |
3898 AC_SUBST(all_gtfiles) | |
3899 AC_SUBST(all_lang_makefrags) | |
3900 AC_SUBST(all_lang_makefiles) | |
3901 AC_SUBST(all_languages) | |
3902 AC_SUBST(all_selected_languages) | |
3903 AC_SUBST(build_exeext) | |
3904 AC_SUBST(build_install_headers_dir) | |
3905 AC_SUBST(build_xm_file_list) | |
3906 AC_SUBST(build_xm_include_list) | |
3907 AC_SUBST(build_xm_defines) | |
3908 AC_SUBST(build_file_translate) | |
3909 AC_SUBST(check_languages) | |
3910 AC_SUBST(cpp_install_dir) | |
3911 AC_SUBST(xmake_file) | |
3912 AC_SUBST(tmake_file) | |
3913 AC_SUBST(extra_gcc_objs) | |
3914 AC_SUBST(extra_headers_list) | |
3915 AC_SUBST(extra_objs) | |
3916 AC_SUBST(extra_parts) | |
3917 AC_SUBST(extra_passes) | |
3918 AC_SUBST(extra_programs) | |
3919 AC_SUBST(float_h_file) | |
3920 AC_SUBST(gcc_config_arguments) | |
3921 AC_SUBST(gcc_gxx_include_dir) | |
3922 AC_SUBST(host_exeext) | |
3923 AC_SUBST(host_xm_file_list) | |
3924 AC_SUBST(host_xm_include_list) | |
3925 AC_SUBST(host_xm_defines) | |
3926 AC_SUBST(out_host_hook_obj) | |
3927 AC_SUBST(install) | |
3928 AC_SUBST(lang_opt_files) | |
3929 AC_SUBST(lang_specs_files) | |
3930 AC_SUBST(lang_tree_files) | |
3931 AC_SUBST(local_prefix) | |
3932 AC_SUBST(md_file) | |
3933 AC_SUBST(objc_boehm_gc) | |
3934 AC_SUBST(out_file) | |
3935 AC_SUBST(out_object_file) | |
3936 AC_SUBST(thread_file) | |
3937 AC_SUBST(tm_file_list) | |
3938 AC_SUBST(tm_include_list) | |
3939 AC_SUBST(tm_defines) | |
3940 AC_SUBST(tm_p_file_list) | |
3941 AC_SUBST(tm_p_include_list) | |
3942 AC_SUBST(xm_file_list) | |
3943 AC_SUBST(xm_include_list) | |
3944 AC_SUBST(xm_defines) | |
3945 AC_SUBST(c_target_objs) | |
3946 AC_SUBST(cxx_target_objs) | |
3947 AC_SUBST(fortran_target_objs) | |
3948 AC_SUBST(target_cpu_default) | |
3949 | |
3950 AC_SUBST_FILE(language_hooks) | |
3951 | |
3952 # Echo link setup. | |
3953 if test x${build} = x${host} ; then | |
3954 if test x${host} = x${target} ; then | |
3955 echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
3956 else | |
3957 echo "Links are now set up to build a cross-compiler" 1>&2 | |
3958 echo " from ${host} to ${target}." 1>&2 | |
3959 fi | |
3960 else | |
3961 if test x${host} = x${target} ; then | |
3962 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
3963 echo " for ${target}." 1>&2 | |
3964 else | |
3965 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
3966 echo " from ${host} to ${target}." 1>&2 | |
3967 fi | |
3968 fi | |
3969 | |
3970 AC_ARG_VAR(GMPLIBS,[How to link GMP]) | |
3971 AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
3972 | |
3973 AC_ARG_VAR(PPLLIBS,[How to link PPL]) | |
3974 AC_ARG_VAR(PPLINC,[How to find PPL include files]) | |
3975 | |
3976 AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG]) | |
3977 AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files]) | |
3978 if test "x${CLOOGLIBS}" != "x" ; then | |
3979 AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.]) | |
3980 fi | |
3981 | |
3982 # Configure the subdirectories | |
3983 # AC_CONFIG_SUBDIRS($subdirs) | |
3984 | |
3985 # Create the Makefile | |
3986 # and configure language subdirectories | |
3987 AC_CONFIG_FILES($all_outputs) | |
3988 | |
3989 AC_CONFIG_COMMANDS([default], | |
3990 [ | |
3991 case ${CONFIG_HEADERS} in | |
3992 *auto-host.h:config.in*) | |
3993 echo > cstamp-h ;; | |
3994 esac | |
3995 # Make sure all the subdirs exist. | |
3996 for d in $subdirs doc build | |
3997 do | |
3998 test -d $d || mkdir $d | |
3999 done | |
4000 ], | |
4001 [subdirs='$subdirs']) | |
4002 AC_OUTPUT |