2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
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 2, or (at your option) any later
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
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(short)
253 AC_COMPILE_CHECK_SIZEOF(int)
254 AC_COMPILE_CHECK_SIZEOF(long)
255 if test $ac_cv_c_long_long = yes; then
256 AC_COMPILE_CHECK_SIZEOF(long long)
258 if test $ac_cv_c___int64 = yes; then
259 AC_COMPILE_CHECK_SIZEOF(__int64)
266 # See if GNAT has been installed
269 if test x$have_gnat != xno ; then
270 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
271 ac_cv_prog_adac_no_long_long,
272 [cat >conftest.adb <<EOF
273 procedure conftest is begin null; end conftest;
275 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
276 ac_cv_prog_adac_no_long_long=yes
278 ac_cv_prog_adac_no_long_long=no
282 ac_cv_prog_adac_no_long_long=yes
285 # ---------------------
286 # Warnings and checking
287 # ---------------------
290 if test $ac_cv_prog_cc_no_long_long = yes && \
291 test $ac_cv_prog_adac_no_long_long = yes ; then
292 strict1_warn="-pedantic -Wno-long-long"
294 AC_SUBST(strict1_warn)
296 # If the native compiler is GCC, we can enable warnings even in stage1.
297 # That's useful for people building cross-compilers, or just running a
300 if test "x$GCC" = "xyes"; then
301 warn_cflags='$(GCC_WARN_CFLAGS)'
303 AC_SUBST(warn_cflags)
305 # Enable -Werror in bootstrap stage2 and later.
306 # Change the default to "no" on release branches.
307 AC_ARG_ENABLE(werror,
308 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
310 if test x$enable_werror = xyes ; then
315 # Enable expensive internal checks
316 AC_ARG_ENABLE(checking,
317 [ --enable-checking[=LIST]
318 enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
321 default is misc,tree,gc,rtlflag],
327 ac_gc_always_collect=
328 case "${enableval}" in
329 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
330 ac_rtlflag_checking=1 ;;
332 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
333 set fnord $enableval; shift
338 misc) ac_checking=1 ;;
339 tree) ac_tree_checking=1 ;;
340 rtlflag) ac_rtlflag_checking=1 ;;
341 rtl) ac_rtl_checking=1 ;;
342 gc) ac_gc_checking=1 ;;
343 gcac) ac_gc_always_collect=1 ;;
344 valgrind) ac_checking_valgrind=1 ;;
345 *) AC_MSG_ERROR(unknown check category $check) ;;
351 # Enable some checks by default for development versions of GCC
352 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
354 if test x$ac_checking != x ; then
355 AC_DEFINE(ENABLE_CHECKING, 1,
356 [Define if you want more run-time sanity checks. This one gets a grab
357 bag of miscellaneous but relatively cheap checks.])
358 nocommon_flag=-fno-common
360 AC_SUBST(nocommon_flag)
361 if test x$ac_tree_checking != x ; then
362 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
363 [Define if you want all operations on trees (the basic data
364 structure of the front ends) to be checked for dynamic type safety
365 at runtime. This is moderately expensive.])
367 if test x$ac_rtl_checking != x ; then
368 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
369 [Define if you want all operations on RTL (the basic data structure
370 of the optimizer and back end) to be checked for dynamic type safety
371 at runtime. This is quite expensive.])
373 if test x$ac_rtlflag_checking != x ; then
374 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
375 [Define if you want RTL flag accesses to be checked against the RTL
376 codes that are supported for each access macro. This is relatively
379 if test x$ac_gc_checking != x ; then
380 AC_DEFINE(ENABLE_GC_CHECKING, 1,
381 [Define if you want the garbage collector to do object poisoning and
382 other memory allocation checks. This is quite expensive.])
384 if test x$ac_gc_always_collect != x ; then
385 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
386 [Define if you want the garbage collector to operate in maximally
387 paranoid mode, validating the entire heap and collecting garbage at
388 every opportunity. This is extremely expensive.])
390 valgrind_path_defines=
392 if test x$ac_checking_valgrind != x ; then
393 # It is certainly possible that there's valgrind but no valgrind.h.
394 # GCC relies on making annotations so we must have both.
395 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
397 [#include <memcheck.h>
398 #ifndef VALGRIND_DISCARD
399 #error VALGRIND_DISCARD not defined
401 [gcc_cv_header_memcheck_h=yes],
402 gcc_cv_header_memcheck_h=no)
403 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
404 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
405 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
406 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
407 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
408 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
410 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
411 valgrind_command="$valgrind_path -q"
412 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
413 [Define if you want to run subprograms and generated programs
414 through valgrind (a memory checker). This is extremely expensive.])
415 if test $gcc_cv_header_memcheck_h = yes; then
416 AC_DEFINE(HAVE_MEMCHECK_H, 1,
417 [Define if valgrind's memcheck.h header is installed.])
420 AC_SUBST(valgrind_path_defines)
421 AC_SUBST(valgrind_command)
423 # Enable code coverage collection
424 AC_ARG_ENABLE(coverage,
425 [ --enable-coverage[=LEVEL]
426 enable compiler\'s code coverage collection.
427 Use to measure compiler performance and locate
428 unused parts of the compiler. With LEVEL, specify
429 optimization. Values are opt, noopt,
431 [case "${enableval}" in
433 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
436 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
439 AC_MSG_ERROR(unknown coverage setting $enableval)
443 AC_SUBST(coverage_flags)
445 # -------------------------------
446 # Miscenalleous configure options
447 # -------------------------------
451 [ --with-stabs arrange to use stabs instead of host debug format],
457 [ --with-elf arrange to use ELF instead of host debug format],
461 # Determine whether or not multilibs are enabled.
462 AC_ARG_ENABLE(multilib,
463 [ --enable-multilib enable library support for multiple ABIs],
464 [], [enable_multilib=yes])
465 AC_SUBST(enable_multilib)
467 # Enable __cxa_atexit for C++.
468 AC_ARG_ENABLE(__cxa_atexit,
469 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
472 # Enable Multibyte Characters for C/C++
473 AC_ARG_ENABLE(c-mbchar,
474 [ --enable-c-mbchar enable multibyte characters for C and C++],
475 if test x$enable_c_mbchar != xno; then
476 AC_DEFINE(MULTIBYTE_CHARS, 1,
477 [Define if you want the C and C++ compilers to support multibyte
478 character sets for source code.])
482 # Pass with no value to take the default
483 # Pass with a value to specify a thread package
484 AC_ARG_ENABLE(threads,
485 [ --enable-threads enable thread usage for target GCC
486 --enable-threads=LIB use LIB thread package for target GCC],,
489 enable_threads_flag=$enable_threads
490 # Check if a valid thread package
491 case x${enable_threads_flag} in
494 target_thread_file='single'
498 target_thread_file=''
500 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
501 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
502 target_thread_file=$enable_threads_flag
505 echo "$enable_threads is an unknown thread package" 1>&2
510 AC_ARG_ENABLE(objc-gc,
511 [ --enable-objc-gc enable the use of Boehm's garbage collector with
512 the GNU Objective-C runtime],
513 if test x$enable_objc_gc = xno; then
521 [ --with-dwarf2 force the default debug format to be DWARF 2],
522 dwarf2="$with_dwarf2",
525 AC_ARG_ENABLE(shared,
526 [ --disable-shared don't provide a shared libgcc],
528 case $enable_shared in
532 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
533 for pkg in $enableval; do
534 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
541 ], [enable_shared=yes])
542 AC_SUBST(enable_shared)
545 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
547 case ${with_sysroot} in
548 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
549 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
552 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
553 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
555 if test "x$exec_prefix" = xNONE; then
556 if test "x$prefix" = xNONE; then
557 test_prefix=/usr/local
562 test_prefix=$exec_prefix
564 case ${TARGET_SYSTEM_ROOT} in
565 "${test_prefix}"|"${test_prefix}/"*|\
566 '${exec_prefix}'|'${exec_prefix}/'*)
567 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
568 TARGET_SYSTEM_ROOT_DEFINE="$t"
573 TARGET_SYSTEM_ROOT_DEFINE=
574 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
576 AC_SUBST(TARGET_SYSTEM_ROOT)
577 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
578 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
580 # -------------------------
581 # Checks for other programs
582 # -------------------------
586 # Find some useful tools
593 # See if we have the mktemp command.
594 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
596 # Do we have a single-tree copy of texinfo?
597 if test -f $srcdir/../texinfo/Makefile.in; then
598 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
599 gcc_cv_prog_makeinfo_modern=yes
600 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
602 # See if makeinfo has been installed and is modern enough
603 # that we can use it.
604 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
605 [GNU texinfo.* \([0-9][0-9.]*\)],
609 if test $gcc_cv_prog_makeinfo_modern = no; then
611 *** Makeinfo is missing or too old.
612 *** Info documentation will not be built.])
615 BUILD_INFO=info AC_SUBST(BUILD_INFO)
618 # Is pod2man recent enough to regenerate manpages?
619 AC_MSG_CHECKING([for recent Pod::Man])
620 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
622 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
628 # 'make compare' can be significantly faster, if cmp itself can
629 # skip bytes instead of using tail. The test being performed is
630 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
631 # but we need to sink errors and handle broken shells.
632 AC_MSG_CHECKING([for cmp's capabilities])
635 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
636 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
637 make_compare_target=slowcompare
639 make_compare_target=gnucompare
642 make_compare_target=slowcompare
645 AC_SUBST(make_compare_target)
646 AC_MSG_RESULT($make_compare_target)
649 dnl Don't use AC_PROG_LEX; we insist on flex.
650 dnl LEXLIB is not useful in gcc.
651 if test -f $srcdir/../flex/skel.c; then
652 FLEX='$(objdir)/../flex/flex'
654 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
658 # The -L switch is so bison can find its skeleton file.
659 if test -f $srcdir/../bison/bison.simple; then
660 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
662 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
665 # --------------------
666 # Checks for C headers
667 # --------------------
669 AC_MSG_CHECKING(for GNU C library)
670 AC_CACHE_VAL(gcc_cv_glibc,
672 [#include <features.h>],[
673 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
674 #error Not a GNU C library system
678 AC_MSG_RESULT($gcc_cv_glibc)
679 if test $gcc_cv_glibc = yes; then
680 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
685 gcc_AC_HEADER_STDBOOL
688 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
689 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
690 sys/resource.h sys/param.h sys/times.h sys/stat.h \
691 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
693 # Check for thread headers.
694 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
695 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
697 # These tests can't be done till we know if we have limits.h.
705 # Stage specific cflags for build.
711 stage1_cflags="-Wa,-J"
717 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
718 # sources; use -no-cpp-precomp to get to GNU cpp.
719 # Apple's GCC has bugs in designated initializer handling, so disable
721 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
724 AC_SUBST(stage1_cflags)
726 # These libraries may be used by collect2.
727 # We may need a special search path to get them linked.
728 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
730 for libs in '' -lld -lmld \
731 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
732 '-L/usr/lib/cmplrs/cc3.11 -lmld'
735 AC_TRY_LINK_FUNC(ldopen,
736 [gcc_cv_collect2_libs="$libs"; break])
739 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
740 case $gcc_cv_collect2_libs in
742 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
744 AC_SUBST(COLLECT2_LIBS)
746 # When building Ada code on Alpha, we need exc_resume which is usually in
747 # -lexc. So test for it.
750 AC_SEARCH_LIBS(exc_resume, exc)
753 AC_SUBST(GNAT_LIBEXC)
755 # Some systems put ldexp and frexp in libm instead of libc; assume
756 # they're both in the same place. jcf-dump needs them.
759 AC_SEARCH_LIBS(ldexp, m)
764 # Use <inttypes.h> only if it exists,
765 # doesn't clash with <sys/types.h>, and declares intmax_t.
766 AC_MSG_CHECKING(for inttypes.h)
767 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
769 [#include <sys/types.h>
770 #include <inttypes.h>],
772 [gcc_cv_header_inttypes_h=yes],
773 gcc_cv_header_inttypes_h=no)])
774 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
775 if test $gcc_cv_header_inttypes_h = yes; then
776 AC_DEFINE(HAVE_INTTYPES_H, 1,
777 [Define if you have a working <inttypes.h> header file.])
780 dnl Disabled until we have a complete test for buggy enum bitfields.
781 dnl gcc_AC_C_ENUM_BF_UNSIGNED
783 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
784 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
785 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
786 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
788 if test x$ac_cv_func_mbstowcs = xyes; then
789 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
790 [ AC_TRY_RUN([#include <stdlib.h>
796 gcc_cv_func_mbstowcs_works=yes,
797 gcc_cv_func_mbstowcs_works=no,
798 gcc_cv_func_mbstowcs_works=yes)])
799 if test x$gcc_cv_func_mbstowcs_works = xyes; then
800 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
801 [Define this macro if mbstowcs does not crash when its
802 first argument is NULL.])
806 AC_CHECK_TYPE(ssize_t, int)
808 # Try to determine the array type of the second argument of getgroups
809 # for the target system (int or gid_t).
811 if test "${target}" = "${build}"; then
812 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
815 # This condition may need some tweaking. It should include all
816 # targets where the array type of the second argument of getgroups
817 # is int and the type of gid_t is not equivalent to int.
818 *-*-sunos* | *-*-ultrix*)
819 TARGET_GETGROUPS_T=int
822 TARGET_GETGROUPS_T=gid_t
826 AC_SUBST(TARGET_GETGROUPS_T)
828 gcc_AC_FUNC_PRINTF_PTR
829 gcc_AC_FUNC_MMAP_BLACKLIST
834 *** UWIN may not be used as a host platform because
835 *** linking with posix.dll is not allowed by the GNU GPL])
838 # Under VMS, vfork works very different than on Unix. The standard test
839 # won't work, and it isn't easily adaptable. It makes more sense to
841 ac_cv_func_vfork_works=yes
848 # We will need to find libiberty.h and ansidecl.h
849 saved_CFLAGS="$CFLAGS"
850 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
851 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
852 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
853 fprintf_unlocked strstr errno vasprintf \
854 malloc realloc calloc free basename getopt clock, , ,[
855 #include "ansidecl.h"
856 #include "system.h"])
858 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
859 #include "ansidecl.h"
861 #ifdef HAVE_SYS_RESOURCE_H
862 #include <sys/resource.h>
867 #include "ansidecl.h"
869 #ifdef HAVE_SYS_RESOURCE_H
870 #include <sys/resource.h>
872 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
873 [Define to \`long' if <sys/resource.h> doesn't define.])])
875 gcc_AC_CHECK_DECLS(ldgetname, , ,[
876 #include "ansidecl.h"
883 gcc_AC_CHECK_DECLS(times, , ,[
884 #include "ansidecl.h"
886 #ifdef HAVE_SYS_TIMES_H
887 #include <sys/times.h>
891 # More time-related stuff.
892 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
894 #include "ansidecl.h"
896 #ifdef HAVE_SYS_TIMES_H
897 #include <sys/times.h>
899 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
900 if test $ac_cv_struct_tms = yes; then
901 AC_DEFINE(HAVE_STRUCT_TMS, 1,
902 [Define if <sys/times.h> defines struct tms.])
905 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
906 # revisit after autoconf 2.50.
907 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
909 #include "ansidecl.h"
911 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
912 if test $gcc_cv_type_clock_t = yes; then
913 AC_DEFINE(HAVE_CLOCK_T, 1,
914 [Define if <time.h> defines clock_t.])
917 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
919 #include "ansidecl.h"
922 [if ((uchar *)0) return 0;
923 if (sizeof(uchar)) return 0;],
924 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
925 if test $ac_cv_type_uchar = yes; then
926 AC_DEFINE(HAVE_UCHAR, 1,
927 [Define if <sys/types.h> defines \`uchar'.])
930 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
931 CFLAGS="$saved_CFLAGS"
933 gcc_AC_INITFINI_ARRAY
935 # mkdir takes a single argument on some systems.
936 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
944 # With Setjmp/Longjmp based exception handling.
945 AC_ARG_ENABLE(sjlj-exceptions,
946 [ --enable-sjlj-exceptions
947 arrange to use setjmp/longjmp exception handling],
948 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
949 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
950 [Define 0/1 to force the choice for exception handling model.])])
952 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
953 # Use libunwind based exception handling.
954 AC_ARG_ENABLE(libunwind-exceptions,
955 [ --enable-libunwind-exceptions force use libunwind for exceptions],
956 use_libunwind_exceptions=$enableval,
957 use_libunwind_exceptions=$use_libunwind_default)
958 if test x"$use_libunwind_exceptions" = xyes; then
959 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
960 [Define if gcc should use -lunwind.])
963 # --------------------------------------------------------
964 # Build, host, and target specific configuration fragments
965 # --------------------------------------------------------
970 build_install_headers_dir=install-headers-tar
977 # Decode the host machine, then the target machine.
978 # For the host machine, we save the xm_file variable as host_xm_file;
979 # then we decode the target machine and forget everything else
980 # that came from the host machine.
981 for machine in $build $host $target; do
982 . ${srcdir}/config.gcc
985 extra_objs="${host_extra_objs} ${extra_objs}"
987 # Default the target-machine variables that were not explicitly set.
988 if test x"$tm_file" = x
989 then tm_file=$cpu_type/$cpu_type.h; fi
991 if test x"$extra_headers" = x
992 then extra_headers=; fi
994 if test x$md_file = x
995 then md_file=$cpu_type/$cpu_type.md; fi
997 if test x$out_file = x
998 then out_file=$cpu_type/$cpu_type.c; fi
1000 if test x"$tmake_file" = x
1001 then tmake_file=$cpu_type/t-$cpu_type
1004 if test x"$dwarf2" = xyes
1005 then tm_file="$tm_file tm-dwarf2.h"
1008 # Say what files are being used for the output code and MD file.
1009 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1010 echo "Using \`$srcdir/config/$md_file' as machine description file."
1012 # If any of the xm_file variables contain nonexistent files, warn
1013 # about them and drop them.
1016 for x in $build_xm_file; do
1017 if test -f $srcdir/config/$x
1019 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1025 for x in $host_xm_file; do
1026 if test -f $srcdir/config/$x
1028 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1034 for x in $xm_file; do
1035 if test -f $srcdir/config/$x
1037 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1043 for f in $tm_file; do
1046 if test $count = ax; then
1047 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1049 echo "Using the following target machine macro files:"
1050 for f in $tm_file; do
1051 echo " $srcdir/config/$f"
1055 if test x$need_64bit_hwint = xyes; then
1056 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1057 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1061 for f in $host_xm_file; do
1064 if test $count = a; then
1066 elif test $count = ax; then
1067 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1069 echo "Using the following host machine macro files:"
1070 for f in $host_xm_file; do
1071 echo " $srcdir/config/$f"
1074 echo "Using ${out_host_hook_obj} for host machine hooks."
1076 if test "$host_xm_file" != "$build_xm_file"; then
1078 for f in $build_xm_file; do
1081 if test $count = a; then
1083 elif test $count = ax; then
1084 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1086 echo "Using the following build machine macro files:"
1087 for f in $build_xm_file; do
1088 echo " $srcdir/config/$f"
1093 if test x$thread_file = x; then
1094 if test x$target_thread_file != x; then
1095 thread_file=$target_thread_file
1097 thread_file='single'
1101 if test x$enable___cxa_atexit = xyes || \
1102 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1103 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1104 [Define if you want to use __cxa_atexit, rather than atexit, to
1105 register C++ destructors for local statics and global objects.
1106 This is essential for fully standards-compliant handling of
1107 destructors, but requires __cxa_atexit in libc.])
1110 # Look for a file containing extra machine modes.
1111 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1112 extra_modes_file='$(srcdir)'/config/${extra_modes}
1113 AC_SUBST(extra_modes_file)
1114 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1115 [Define to the name of a file containing a list of extra machine modes
1116 for this architecture.])
1117 AC_DEFINE(EXTRA_CC_MODES, 1,
1118 [Define if the target architecture needs extra machine modes to represent
1119 the results of comparisons.])
1122 # auto-host.h is the file containing items generated by autoconf and is
1123 # the first file included by config.h.
1124 # If host=build, it is correct to have bconfig include auto-host.h
1125 # as well. If host!=build, we are in error and need to do more
1126 # work to find out the build config parameters.
1127 if test x$host = x$build
1129 build_auto=auto-host.h
1132 # We create a subdir, then run autoconf in the subdir.
1133 # To prevent recursion we set host and build for the new
1134 # invocation of configure to the build for this invocation
1141 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1142 *) realsrcdir=../${srcdir};;
1144 saved_CFLAGS="${CFLAGS}"
1145 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1146 ${realsrcdir}/configure \
1147 --target=$target_alias --host=$build_alias --build=$build_alias
1148 CFLAGS="${saved_CFLAGS}"
1150 # We just finished tests for the build machine, so rename
1151 # the file auto-build.h in the gcc directory.
1152 mv auto-host.h ../auto-build.h
1155 build_auto=auto-build.h
1156 FORBUILD=../${build_subdir}
1160 tm_file="${tm_file} defaults.h"
1161 tm_p_file="${tm_p_file} tm-preds.h"
1162 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1163 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1164 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1165 # put this back in temporarily.
1166 xm_file="ansidecl.h ${xm_file}"
1172 # Get the version trigger filename from the toplevel
1173 if test "${with_gcc_version_trigger+set}" = set; then
1174 gcc_version_trigger=$with_gcc_version_trigger
1176 gcc_version_trigger=${srcdir}/version.c
1179 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1180 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1182 # Compile in configure arguments.
1183 if test -f configargs.h ; then
1184 # Being re-configured.
1185 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1186 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1188 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1190 cat > configargs.h <<EOF
1191 /* Generated automatically. */
1192 static const char configuration_arguments[] = "$gcc_config_arguments";
1193 static const char thread_model[] = "$thread_file";
1195 static const struct {
1196 const char *name, *value;
1197 } configure_default_options[] = $configure_default_options;
1201 # Internationalization
1203 VERSION="$gcc_version"
1207 # Enable NLS support by default
1209 [ --enable-nls use Native Language Support (default)],
1212 # if cross compiling, disable NLS support.
1213 # It's not worth the trouble, at least for now.
1215 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1216 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1222 # Windows32 Registry support for specifying GCC installation paths.
1223 AC_ARG_ENABLE(win32-registry,
1224 [ --disable-win32-registry
1225 disable lookup of installation paths in the
1226 Registry on Windows hosts
1227 --enable-win32-registry enable registry lookup (default)
1228 --enable-win32-registry=KEY
1229 use KEY instead of GCC version as the last portion
1230 of the registry key],,)
1232 win32 | pe | cygwin* | mingw32* | uwin*)
1233 AC_MSG_CHECKING(whether windows registry support is requested)
1234 if test "x$enable_win32_registry" != xno; then
1235 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1236 [Define to 1 if installation paths should be looked up in Windows32
1237 Registry. Ignored on non windows32 hosts.])
1239 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1244 # Check if user specified a different registry key.
1245 case "x${enable_win32_registry}" in
1248 gcc_cv_win32_registry_key="$VERSION"
1251 # no registry lookup.
1252 gcc_cv_win32_registry_key=''
1255 # user-specified key.
1256 gcc_cv_win32_registry_key="$enable_win32_registry"
1260 if test "x$enable_win32_registry" != xno; then
1261 AC_MSG_CHECKING(registry key on windows hosts)
1262 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1263 [Define to be the last portion of registry key on windows hosts.])
1264 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1269 # Get an absolute path to the GCC top-level source directory
1270 holddir=`${PWDCMD-pwd}`
1272 topdir=`${PWDCMD-pwd}`
1275 # Conditionalize the makefile for this host machine.
1276 # Make-host contains the concatenation of all host makefile fragments
1277 # [there can be more than one]. This file is built by configure.frag.
1278 host_overrides=Make-host
1279 dep_host_xmake_file=
1280 for f in .. ${host_xmake_file}
1282 if test -f ${srcdir}/config/$f
1284 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1288 # Conditionalize the makefile for this target machine.
1289 # Make-target contains the concatenation of all host makefile fragments
1290 # [there can be more than one]. This file is built by configure.frag.
1291 target_overrides=Make-target
1293 for f in .. ${tmake_file}
1295 if test -f ${srcdir}/config/$f
1297 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1301 symbolic_link='ln -s'
1303 # If the host doesn't support symlinks, modify CC in
1304 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1305 # Otherwise, we can use "CC=$(CC)".
1307 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1309 cc_set_by_configure="\$(CC)"
1310 quoted_cc_set_by_configure="\$(CC)"
1311 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1312 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1315 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1317 symbolic_link="cp -p"
1321 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1322 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1323 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1324 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1328 out_object_file=`basename $out_file .c`.o
1331 for f in $tm_file; do
1334 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1336 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1337 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1342 for f in $tm_p_file; do
1345 tm_p_file_list="${tm_p_file_list} $f" ;;
1346 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1351 for f in $host_xm_file; do
1354 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1356 host_xm_file_list="${host_xm_file_list} $f" ;;
1358 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1359 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1364 for f in $build_xm_file; do
1367 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1368 auto-build.h | auto-host.h )
1369 build_xm_file_list="${build_xm_file_list} $f" ;;
1371 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1372 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1376 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1377 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1378 CROSS= AC_SUBST(CROSS)
1379 ALL=all.internal AC_SUBST(ALL)
1380 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1381 if test x$host != x$target
1383 CROSS="-DCROSS_COMPILE"
1385 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1386 case "$host","$target" in
1387 i?86-*-*,x86_64-*-* \
1388 | powerpc*-*-*,powerpc64*-*-*)
1389 CROSS="$CROSS -DNATIVE_CROSS" ;;
1391 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1392 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1393 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1396 # If this is a cross-compiler that does not
1397 # have its own set of headers then define
1400 # If this is using newlib, without having the headers available now,
1401 # then define inhibit_libc in LIBGCC2_CFLAGS.
1402 # This prevents libgcc2 from containing any code which requires libc
1405 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1406 test x$with_newlib = xyes ; } &&
1407 test "x$with_headers" = x ; then
1408 inhibit_libc=-Dinhibit_libc
1410 AC_SUBST(inhibit_libc)
1412 # When building gcc with a cross-compiler, we need to adjust things so
1413 # that the generator programs are still built with the native compiler.
1414 # Also, we cannot run fixincludes or fix-header.
1416 # These are the normal (build=host) settings:
1417 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1418 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1419 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1420 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1422 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1423 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1425 # And these apply if build != host.
1426 if test x$build != x$host
1429 BUILD_PREFIX_1=build-
1430 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1432 if test "x$TARGET_SYSTEM_ROOT" = x; then
1438 # Expand extra_headers to include complete path.
1439 # This substitutes for lots of t-* files.
1441 if test "x$extra_headers" = x
1444 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1445 for file in $extra_headers;
1447 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1451 # Add a definition of USE_COLLECT2 if system wants one.
1452 case $use_collect2 in
1453 no) use_collect2= ;;
1456 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1457 xm_defines="${xm_defines} USE_COLLECT2"
1461 # Identify the assembler which will work hand-in-glove with the newly
1462 # built GCC, so that we can examine its features. This is the assembler
1463 # which will be driven by the driver program.
1465 # If build != host, and we aren't building gas in-tree, we identify a
1466 # build->target assembler and hope that it will have the same features
1467 # as the host->target assembler we'll be using.
1468 AC_MSG_CHECKING(what assembler to use)
1471 gcc_cv_gas_major_version=
1472 gcc_cv_gas_minor_version=
1473 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1474 if test -x "$DEFAULT_ASSEMBLER"; then
1475 gcc_cv_as="$DEFAULT_ASSEMBLER"
1476 elif test -x "$AS"; then
1478 elif test -x as$host_exeext; then
1479 # Build using assembler in the current directory.
1480 gcc_cv_as=./as$host_exeext
1481 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1482 && test -f ../gas/Makefile; then
1483 # Single tree build which includes gas.
1485 _gcc_COMPUTE_GAS_VERSION
1486 rm -f as$host_exeext
1487 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1488 in_tree_gas_is_elf=no
1489 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1490 || (grep 'obj_format = multi' ../gas/Makefile \
1491 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1493 in_tree_gas_is_elf=yes
1497 if test "x$gcc_cv_as" = x; then
1498 # Search the same directories that the installed compiler will
1499 # search. Else we may find the wrong assembler and lose. If we
1500 # do not find a suitable assembler binary, then try the user's
1503 # Also note we have to check MD_EXEC_PREFIX before checking the
1504 # user's path. Unfortunately, there is no good way to get at the
1505 # value of MD_EXEC_PREFIX here. So we do a brute force search
1506 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1507 # to be fixed as part of the make/configure rewrite too.
1509 if test "x$exec_prefix" = xNONE; then
1510 if test "x$prefix" = xNONE; then
1511 test_prefix=/usr/local
1516 test_prefix=$exec_prefix
1519 # If the loop below does not find an assembler, then use whatever
1520 # one we can find in the users's path.
1522 if test "x$program_prefix" != xNONE; then
1523 gcc_cv_as=${program_prefix}as$host_exeext
1525 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1528 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1529 $test_prefix/lib/gcc-lib/$target_alias \
1530 /usr/lib/gcc/$target_alias/$gcc_version \
1531 /usr/lib/gcc/$target_alias \
1532 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1533 $test_prefix/$target_alias/bin"
1535 if test x$host = x$target; then
1536 test_dirs="$test_dirs \
1541 /bsd43/usr/lib/cmplrs/cc \
1542 /usr/cross64/usr/bin \
1543 /usr/lib/cmplrs/cc \
1544 /sysv/usr/lib/cmplrs/cc \
1545 /svr4/usr/lib/cmplrs/cc \
1549 for dir in $test_dirs; do
1550 if test -x $dir/as$host_exeext; then
1551 gcc_cv_as=$dir/as$host_exeext
1556 case $in_tree_gas in
1558 AC_MSG_RESULT("newly built gas")
1561 AC_MSG_RESULT($gcc_cv_as)
1565 # Identify the linker which will work hand-in-glove with the newly
1566 # built GCC, so that we can examine its features. This is the linker
1567 # which will be driven by the driver program.
1569 # If build != host, and we aren't building gas in-tree, we identify a
1570 # build->target linker and hope that it will have the same features
1571 # as the host->target linker we'll be using.
1572 AC_MSG_CHECKING(what linker to use)
1575 gcc_cv_gld_major_version=
1576 gcc_cv_gld_minor_version=
1577 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1578 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1579 if test -x "$DEFAULT_LINKER"; then
1580 gcc_cv_ld="$DEFAULT_LINKER"
1581 elif test -x "$LD"; then
1583 elif test -x collect-ld$host_exeext; then
1584 # Build using linker in the current directory.
1585 gcc_cv_ld=./collect-ld$host_exeext
1586 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1587 && test -f ../ld/Makefile; then
1588 # Single tree build which includes ld.
1590 in_tree_ld_is_elf=no
1591 if (grep 'EMUL = .*elf' ../ld/Makefile \
1592 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1593 in_tree_ld_is_elf=yes
1595 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
1598 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1600 if test x$gcc_cv_gld_version != x; then
1605 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1606 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1608 rm -f collect-ld$host_exeext
1609 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1613 if test "x$gcc_cv_ld" = x; then
1614 # Search the same directories that the installed compiler will
1615 # search. Else we may find the wrong linker and lose. If we
1616 # do not find a suitable linker binary, then try the user's
1619 # Also note we have to check MD_EXEC_PREFIX before checking the
1620 # user's path. Unfortunately, there is no good way to get at the
1621 # value of MD_EXEC_PREFIX here. So we do a brute force search
1622 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1623 # to be fixed as part of the make/configure rewrite too.
1625 if test "x$exec_prefix" = xNONE; then
1626 if test "x$prefix" = xNONE; then
1627 test_prefix=/usr/local
1632 test_prefix=$exec_prefix
1635 # If the loop below does not find an linker, then use whatever
1636 # one we can find in the users's path.
1638 if test "x$program_prefix" != xNONE; then
1639 gcc_cv_ld=${program_prefix}ld$host_exeext
1641 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1644 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1645 $test_prefix/lib/gcc-lib/$target_alias \
1646 /usr/lib/gcc/$target_alias/$gcc_version \
1647 /usr/lib/gcc/$target_alias \
1648 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1649 $test_prefix/$target_alias/bin"
1651 if test x$host = x$target; then
1652 test_dirs="$test_dirs \
1657 /bsd43/usr/lib/cmplrs/cc \
1658 /usr/cross64/usr/bin \
1659 /usr/lib/cmplrs/cc \
1660 /sysv/usr/lib/cmplrs/cc \
1661 /svr4/usr/lib/cmplrs/cc \
1665 for dir in $test_dirs; do
1666 if test -x $dir/ld$host_exeext; then
1667 gcc_cv_ld=$dir/ld$host_exeext
1674 AC_MSG_RESULT("newly built ld")
1677 AC_MSG_RESULT($gcc_cv_ld)
1681 # Figure out what nm we will be using.
1682 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1683 AC_MSG_CHECKING(what nm to use)
1685 if test -x nm$host_exeext; then
1686 gcc_cv_nm=./nm$host_exeext
1687 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1688 && test -f ../binutils/Makefile; then
1689 # Single tree build which includes binutils.
1691 gcc_cv_nm=./nm$host_exeext
1692 rm -f nm$host_exeext
1693 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1694 elif test "x$program_prefix" != xNONE; then
1695 gcc_cv_nm=${program_prefix}nm$host_exeext
1697 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1700 yes) AC_MSG_RESULT("newly built nm") ;;
1701 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1704 # Figure out what objdump we will be using.
1705 AC_MSG_CHECKING(what objdump to use)
1707 if test -x objdump$host_exeext; then
1708 gcc_cv_objdump=./objdump$host_exeext
1709 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1710 && test -f ../binutils/Makefile; then
1711 # Single tree build which includes binutils.
1713 gcc_cv_objdump=./objdump$host_exeext
1714 rm -f objdump$host_exeext
1715 $symbolic_link ../binutils/objdump$host_exeext \
1716 objdump$host_exeext 2>/dev/null
1717 elif test "x$program_prefix" != xNONE; then
1718 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1720 gcc_cv_objdump=`echo objdump | \
1721 sed ${program_transform_name}`$host_exeext
1723 case $in_tree_objdump in
1724 yes) AC_MSG_RESULT("newly built objdump") ;;
1725 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1728 # Figure out what assembler alignment features are present.
1729 AC_MSG_CHECKING(assembler alignment features)
1730 gcc_cv_as_alignment_features=none
1731 if test $in_tree_gas = yes; then
1732 # Gas version 2.6 and later support for .balign and .p2align.
1733 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1734 gcc_cv_as_alignment_features=".balign and .p2align"
1735 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1737 # Gas version 2.8 and later support specifying the maximum
1738 # bytes to skip when using .p2align.
1739 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1740 gcc_cv_as_alignment_features=".p2align including maximum skip"
1741 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1743 elif test x$gcc_cv_as != x; then
1744 # Check if we have .balign and .p2align
1745 echo ".balign 4" > conftest.s
1746 echo ".p2align 2" >> conftest.s
1747 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1748 gcc_cv_as_alignment_features=".balign and .p2align"
1749 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1751 rm -f conftest.s conftest.o
1752 # Check if specifying the maximum bytes to skip when
1753 # using .p2align is supported.
1754 echo ".p2align 4,,7" > conftest.s
1755 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1756 gcc_cv_as_alignment_features=".p2align including maximum skip"
1757 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1759 rm -f conftest.s conftest.o
1761 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1763 AC_MSG_CHECKING(assembler subsection support)
1764 gcc_cv_as_subsections=no
1765 if test $in_tree_gas = yes ; then
1766 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1767 test $in_tree_gas_is_elf = yes \
1768 && gcc_cv_as_subsections="working .subsection -1"
1770 elif test x$gcc_cv_as != x; then
1771 # Check if we have .subsection
1772 echo ".subsection 1" > conftest.s
1773 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1774 gcc_cv_as_subsections=".subsection"
1775 if test x$gcc_cv_nm != x; then
1776 cat > conftest.s <<EOF
1777 conftest_label1: .word 0
1779 conftest_label2: .word 0
1782 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1783 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1784 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1785 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1788 gcc_cv_as_subsections="working .subsection -1"
1793 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1795 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1796 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1797 [Define if your assembler supports .subsection and .subsection -1 starts
1798 emitting at the beginning of your section.])
1800 AC_MSG_RESULT($gcc_cv_as_subsections)
1802 AC_MSG_CHECKING(assembler weak support)
1804 if test $in_tree_gas = yes ; then
1805 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1806 gcc_cv_as_weak="yes"
1808 elif test x$gcc_cv_as != x; then
1809 # Check if we have .weak
1810 echo " .weak foobar" > conftest.s
1811 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1812 gcc_cv_as_weak="yes"
1814 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1816 if test x"$gcc_cv_as_weak" = xyes; then
1817 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1819 AC_MSG_RESULT($gcc_cv_as_weak)
1821 AC_MSG_CHECKING(assembler hidden support)
1823 if test $in_tree_gas = yes ; then
1824 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1825 test $in_tree_gas_is_elf = yes && gcc_cv_as_hidden="yes"
1827 elif test x$gcc_cv_as != x; then
1828 # Check if we have .hidden
1829 echo " .hidden foobar" > conftest.s
1830 echo "foobar:" >> conftest.s
1831 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1832 gcc_cv_as_hidden="yes"
1834 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1836 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1837 # This is irritatingly difficult to feature test for. Look for
1838 # the date string after the version number.
1839 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1840 if echo "$ld_ver" | grep GNU > /dev/null; then
1842 ld_vers=`echo $ld_ver | sed -n \
1843 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1844 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1845 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1846 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1847 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1848 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1849 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1850 if test 0"$ld_date" -lt 20020404; then
1851 if test -n "$ld_date"; then
1852 # If there was date string, but was earlier than 2002-04-04, fail
1853 gcc_cv_as_hidden="no"
1854 elif test -z "$ld_vers"; then
1855 # If there was no date string nor ld version number, something is wrong
1856 gcc_cv_as_hidden="no"
1858 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1859 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1860 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1861 test -z "$ld_vers_patch" && ld_vers_patch=0
1862 if test "$ld_vers_major" -lt 2; then
1863 gcc_cv_as_hidden="no"
1864 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1865 gcc_cv_as_hidden="no"
1866 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1867 -a "$ld_vers_patch" -eq 0; then
1868 gcc_cv_as_hidden="no"
1877 if test x"$gnu_ld_flag" = x"no"; then
1878 # Even if using gas with .hidden support, the resulting object files
1879 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1880 # N64 linkers, the problem is that the linker refuses to accept
1881 # -call_shared (passed by default to the linker) and -r (used to
1882 # link the object file generated without .hidden directives with
1883 # one that hides symbols), so we also lose.
1888 if test x"$gcc_cv_as_hidden" = xyes; then
1889 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1890 [Define if your assembler supports .hidden.])
1892 AC_MSG_RESULT($gcc_cv_as_hidden)
1893 libgcc_visibility=$gcc_cv_as_hidden
1894 AC_SUBST(libgcc_visibility)
1896 AC_MSG_CHECKING(assembler leb128 support)
1898 if test $in_tree_gas = yes ; then
1899 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1900 test $in_tree_gas_is_elf = yes && gcc_cv_as_leb128="yes"
1902 elif test x$gcc_cv_as != x; then
1903 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1904 cat > conftest.s <<EOF
1912 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1913 gcc_cv_as_leb128="yes"
1915 # GAS versions before 2.11 do not support uleb128,
1916 # despite appearing to.
1917 # ??? There exists an elf-specific test that will crash
1918 # the assembler. Perhaps it's better to figure out whether
1919 # arbitrary sections are supported and try the test.
1920 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1921 if echo "$as_ver" | grep GNU > /dev/null; then
1923 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1924 as_major=`echo $as_ver | sed 's/\..*//'`
1925 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1927 if test $as_major -eq 2 -a $as_minor -lt 11; then
1928 gcc_cv_as_leb128="no"
1932 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1934 if test x"$gcc_cv_as_leb128" = xyes; then
1935 AC_DEFINE(HAVE_AS_LEB128, 1,
1936 [Define if your assembler supports .uleb128.])
1938 AC_MSG_RESULT($gcc_cv_as_leb128)
1940 AC_MSG_CHECKING(assembler eh_frame optimization)
1941 gcc_cv_as_eh_frame=no
1942 if test $in_tree_gas = yes ; then
1943 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1944 test $in_tree_gas_is_elf = yes && gcc_cv_as_eh_frame="yes"
1946 elif test x$gcc_cv_as != x; then
1947 # Check if this is GAS.
1948 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1949 rm -f a.out 2> /dev/null
1950 if echo "$as_ver" | grep GNU > /dev/null; then
1951 # Versions up to and including 2.11.0 may mis-optimize
1952 # .eh_frame data. Try something.
1953 cat > conftest.s <<EOF
1960 .section .eh_frame,"aw",@progbits
1962 .4byte .LECIE1-.LSCIE1
1976 .4byte .LEFDE1-.LASFDE1
1978 .4byte .LASFDE1-__FRAME_BEGIN__
1987 cat > conftest.lit <<EOF
1988 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1989 0010 01000000 12000000 18000000 00000000 ................
1990 0020 08000000 04080000 0044 .........D
1992 cat > conftest.big <<EOF
1993 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1994 0010 00000001 00000012 00000018 00000000 ................
1995 0020 00000008 04000000 0844 .........D
1997 # If the assembler didn't choke, and we can objdump,
1998 # and we got the correct data, then succeed.
1999 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2000 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2001 | tail -3 > conftest.got \
2002 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2003 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2005 gcc_cv_as_eh_frame="yes"
2007 gcc_cv_as_eh_frame="bad"
2008 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2009 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2010 [Define if your assembler mis-optimizes .eh_frame data.])
2016 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2018 AC_MSG_CHECKING(assembler section merging support)
2019 gcc_cv_as_shf_merge=no
2020 if test $in_tree_gas = yes ; then
2021 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2022 test $in_tree_gas_is_elf = yes && gcc_cv_as_shf_merge="yes"
2024 elif test x$gcc_cv_as != x; then
2025 # Check if we support SHF_MERGE sections
2026 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2027 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2028 gcc_cv_as_shf_merge=yes
2030 rm -f conftest.s conftest.o
2032 if test x"$gcc_cv_as_shf_merge" = xyes; then
2033 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2034 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2036 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2038 AC_MSG_CHECKING(assembler thread-local storage support)
2048 .section ".tdata","awT",@progbits
2051 ldq $27,__tls_get_addr($29) !literal!1
2052 lda $16,foo($29) !tlsgd!1
2053 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2054 ldq $27,__tls_get_addr($29) !literal!2
2055 lda $16,foo($29) !tlsldm!2
2056 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2057 ldq $1,foo($29) !gotdtprel
2058 ldah $2,foo($29) !dtprelhi
2059 lda $3,foo($2) !dtprello
2060 lda $4,foo($29) !dtprel
2061 ldq $1,foo($29) !gottprel
2062 ldah $2,foo($29) !tprelhi
2063 lda $3,foo($2) !tprello
2064 lda $4,foo($29) !tprel'
2071 .section ".tdata","awT",@progbits
2075 leal foo@TLSGD(,%ebx,1), %eax
2076 leal foo@TLSLDM(%ebx), %eax
2077 leal foo@DTPOFF(%eax), %edx
2078 movl foo@GOTTPOFF(%ebx), %eax
2079 subl foo@GOTTPOFF(%ebx), %eax
2080 addl foo@GOTNTPOFF(%ebx), %eax
2081 movl foo@INDNTPOFF, %eax
2082 movl $foo@TPOFF, %eax
2083 subl $foo@TPOFF, %eax
2084 leal foo@NTPOFF(%ecx), %eax'
2090 .section ".tdata","awT",@progbits
2094 leaq foo@TLSGD(%rip), %rdi
2095 leaq foo@TLSLD(%rip), %rdi
2096 leaq foo@DTPOFF(%rax), %rdx
2097 movq foo@GOTTPOFF(%rip), %rax
2098 movq $foo@TPOFF, %rax'
2104 .section ".tdata","awT",@progbits
2107 addl r16 = @ltoff(@dtpmod(foo#)), gp
2108 addl r17 = @ltoff(@dtprel(foo#)), gp
2109 addl r18 = @ltoff(@tprel(foo#)), gp
2110 addl r19 = @dtprel(foo#), gp
2111 adds r21 = @dtprel(foo#), r13
2112 movl r23 = @dtprel(foo#)
2113 addl r20 = @tprel(foo#), gp
2114 adds r22 = @tprel(foo#), r13
2115 movl r24 = @tprel(foo#)'
2121 .section ".tdata","awT",@progbits
2129 addi 3,31,ld0@got@tlsgd
2131 addi 3,31,x1@got@tlsld
2134 addis 9,3,x2@dtprel@ha
2135 addi 9,9,x2@dtprel@l
2136 lwz 9,x3@got@tprel(31)
2139 addis 9,2,x2@tprel@ha
2140 addi 9,9,x2@tprel@l'
2147 .section ".tdata","awT",@progbits
2155 addi 3,2,ld0@got@tlsgd
2161 addi 3,2,x1@got@tlsld
2167 addis 9,3,x2@dtprel@ha
2168 addi 9,9,x2@dtprel@l
2171 ld 9,x3@got@dtprel(2)
2181 .section ".tdata","awT",@progbits
2190 l %r1,foo@GOTNTPOFF(%r12)
2191 l %r1,0(%r1):tls_load:foo
2192 bas %r14,0(%r1,%r13):tls_gdcall:foo
2193 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2200 .section ".tdata","awT",@progbits
2208 lg %r1,foo@GOTNTPOFF(%r12)
2209 larl %r1,foo@INDNTPOFF
2210 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2211 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2214 tls_as_opt="-m64 -Aesame"
2217 if test -z "$tls_first_major"; then
2219 elif test $in_tree_gas = yes ; then
2220 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2223 elif test x$gcc_cv_as != x; then
2224 echo "$conftest_s" > conftest.s
2225 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2229 rm -f conftest.s conftest.o
2231 if test "$gcc_cv_as_tls" = yes; then
2232 AC_DEFINE(HAVE_AS_TLS, 1,
2233 [Define if your assembler supports thread-local storage.])
2235 AC_MSG_RESULT($gcc_cv_as_tls)
2238 # All TARGET_ABI_OSF targets.
2239 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2240 AC_CACHE_CHECK([assembler supports explicit relocations],
2241 gcc_cv_as_explicit_relocs, [
2242 gcc_cv_as_explicit_relocs=unknown
2243 if test $in_tree_gas = yes ; then
2244 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2245 gcc_cv_as_explicit_relocs=yes
2247 elif test x$gcc_cv_as != x; then
2248 cat > conftest.s << 'EOF'
2251 extbl $3, $2, $3 !lituse_bytoff!1
2252 ldq $2, a($29) !literal!1
2253 ldq $4, b($29) !literal!2
2254 ldq_u $3, 0($2) !lituse_base!1
2255 ldq $27, f($29) !literal!5
2256 jsr $26, ($27), f !lituse_jsr!5
2257 ldah $29, 0($26) !gpdisp!3
2258 lda $0, c($29) !gprel
2259 ldah $1, d($29) !gprelhigh
2260 lda $1, d($1) !gprellow
2261 lda $29, 0($29) !gpdisp!3
2263 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2264 gcc_cv_as_explicit_relocs=yes
2266 gcc_cv_as_explicit_relocs=no
2268 rm -f conftest.s conftest.o
2271 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2272 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2273 [Define if your assembler supports explicit relocations.])
2277 AC_CACHE_CHECK([assembler .register pseudo-op support],
2278 gcc_cv_as_register_pseudo_op, [
2279 gcc_cv_as_register_pseudo_op=unknown
2280 if test x$gcc_cv_as != x; then
2281 # Check if we have .register
2282 echo ".register %g2, #scratch" > conftest.s
2283 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2284 gcc_cv_as_register_pseudo_op=yes
2286 gcc_cv_as_register_pseudo_op=no
2288 rm -f conftest.s conftest.o
2291 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2292 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2293 [Define if your assembler supports .register.])
2296 AC_CACHE_CHECK([assembler supports -relax],
2297 gcc_cv_as_relax_opt, [
2298 gcc_cv_as_relax_opt=unknown
2299 if test x$gcc_cv_as != x; then
2300 # Check if gas supports -relax
2301 echo ".text" > conftest.s
2302 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2303 gcc_cv_as_relax_opt=yes
2305 gcc_cv_as_relax_opt=no
2307 rm -f conftest.s conftest.o
2310 if test "x$gcc_cv_as_relax_opt" = xyes; then
2311 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2312 [Define if your assembler supports -relax option.])
2315 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2316 gcc_cv_as_sparc_ua_pcrel, [
2317 gcc_cv_as_sparc_ua_pcrel=unknown
2318 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2319 gcc_cv_as_sparc_ua_pcrel=no
2320 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2321 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2322 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2323 gcc_cv_as_sparc_ua_pcrel=yes
2325 rm -f conftest.s conftest.o conftest
2328 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2329 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2330 [Define if your assembler and linker support unaligned PC relative relocs.])
2333 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2334 gcc_cv_as_sparc_ua_pcrel_hidden, [
2335 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2336 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2337 if test x$gcc_cv_objdump != x; then
2338 gcc_cv_as_sparc_ua_pcrel_hidden=no
2339 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2340 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2341 echo "foo: .skip 4" >> conftest.s
2342 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2343 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2344 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2345 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2346 if $gcc_cv_objdump -R conftest 2> /dev/null \
2347 | grep 'DISP32' > /dev/null 2>&1; then
2350 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2354 rm -f conftest.s conftest.o conftest
2356 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2359 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2360 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2361 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2364 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2365 gcc_cv_as_offsetable_lo10, [
2366 gcc_cv_as_offsetable_lo10=unknown
2367 if test "x$gcc_cv_as" != x; then
2368 # Check if assembler has offsetable %lo()
2369 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2370 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2371 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2373 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2374 > /dev/null 2>&1; then
2375 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2376 gcc_cv_as_offsetable_lo10=no
2378 gcc_cv_as_offsetable_lo10=yes
2381 gcc_cv_as_offsetable_lo10=no
2383 rm -f conftest.s conftest.o conftest1.s conftest1.o
2386 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2387 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2388 [Define if your assembler supports offsetable %lo().])
2394 i[34567]86-*-* | x86_64-*-*)
2396 AC_MSG_CHECKING(assembler instructions)
2397 gcc_cv_as_instructions=
2398 if test $in_tree_gas = yes ; then
2399 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2400 gcc_cv_as_instructions="filds fists"
2402 elif test x$gcc_cv_as != x; then
2403 set "filds fists" "filds mem; fists mem"
2406 echo "$2" > conftest.s
2407 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2408 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2412 rm -f conftest.s conftest.o
2414 if test x"$gcc_cv_as_instructions" != x; then
2415 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2417 AC_MSG_RESULT($gcc_cv_as_instructions)
2419 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2420 gcc_cv_as_gotoff_in_data=no
2421 if test $in_tree_gas = yes ; then
2422 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2423 gcc_cv_as_gotoff_in_data=yes
2425 elif test x$gcc_cv_as != x; then
2426 cat > conftest.s <<EOF
2433 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2434 gcc_cv_as_gotoff_in_data=yes
2437 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2438 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2439 [Define true if the assembler supports '.long foo@GOTOFF'.])
2440 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2444 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2445 gcc_cv_as_ltoffx_ldxmov_relocs, [
2446 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2447 if test $in_tree_gas = yes ; then
2448 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2449 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2451 elif test x$gcc_cv_as != x; then
2452 cat > conftest.s << 'EOF'
2455 addl r15 = @ltoffx(x#), gp
2457 ld8.mov r16 = [r15], x#
2460 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2461 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2463 gcc_cv_as_ltoffx_ldxmov_relocs=no
2465 rm -f conftest.s conftest.o
2468 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2469 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2470 [Define if your assembler supports ltoffx and ldxmov relocations.])
2475 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2476 gcc_cv_as_dwarf2_debug_line=no
2477 # ??? Not all targets support dwarf2 debug_line, even within a version
2478 # of gas. Moreover, we need to emit a valid instruction to trigger any
2479 # info to the output file. So, as supported targets are added to gas 2.11,
2480 # add some instruction here to (also) show we expect this might work.
2481 # ??? Once 2.11 is released, probably need to add first known working
2482 # version to the per-target configury.
2484 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2485 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2486 | xstormy16*-*-* | cris-*-*)
2496 if test $in_tree_gas = yes ; then
2497 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2498 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2499 && gcc_cv_as_dwarf2_debug_line="yes"
2501 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2502 echo ' .file 1 "conftest.s"' > conftest.s
2503 echo ' .loc 1 3 0' >> conftest.s
2504 echo " $insn" >> conftest.s
2505 # ??? This fails with non-gnu grep.
2506 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2507 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2508 # The .debug_line file table must be in the exact order that
2509 # we specified the files, since these indices are also used
2510 # by DW_AT_decl_file. Approximate this test by testing if
2511 # the assembler bitches if the same index is assigned twice.
2512 echo ' .file 1 "foo.s"' > conftest.s
2513 echo ' .file 1 "bar.s"' >> conftest.s
2514 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2516 gcc_cv_as_dwarf2_debug_line="no"
2518 gcc_cv_as_dwarf2_debug_line="yes"
2521 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2523 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2524 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2525 [Define if your assembler supports dwarf2 .file/.loc directives,
2526 and preserves file table indices exactly as given.])
2528 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2530 AC_MSG_CHECKING(assembler --gdwarf2 support)
2531 gcc_cv_as_gdwarf2_flag=no
2532 if test $in_tree_gas = yes ; then
2533 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2534 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2535 && gcc_cv_as_gdwarf2_flag="yes"
2537 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2538 echo '' > conftest.s
2539 # ??? This fails with non-gnu grep.
2540 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2542 gcc_cv_as_gdwarf2_flag="yes"
2544 rm -f conftest.s conftest.o
2546 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2547 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2548 [Define if your assembler supports the --gdwarf2 option.])
2550 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2552 AC_MSG_CHECKING(assembler --gstabs support)
2553 gcc_cv_as_gstabs_flag=no
2554 if test $in_tree_gas = yes ; then
2555 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2556 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2557 && gcc_cv_as_gstabs_flag="yes"
2559 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2560 echo '' > conftest.s
2561 # ??? This fails with non-gnu grep.
2562 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2563 gcc_cv_as_gstabs_flag="yes"
2564 # The native Solaris 9/Intel assembler doesn't understand --gstabs
2565 # and warns about it, but still exits successfully. So check for
2567 if $gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | \
2568 grep -i warning > /dev/null ; then
2569 gcc_cv_as_gstabs_flag="no"
2572 rm -f conftest.s conftest.o
2574 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2575 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2576 [Define if your assembler supports the --gstabs option.])
2578 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2580 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2581 gcc_cv_ld_ro_rw_mix=unknown
2582 if test $in_tree_ld = yes ; then
2583 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2584 && test $in_tree_ld_is_elf = yes; then
2585 gcc_cv_ld_ro_rw_mix=read-write
2587 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2588 echo '.section myfoosect, "a"' > conftest1.s
2589 echo '.section myfoosect, "aw"' > conftest2.s
2590 echo '.byte 1' >> conftest2.s
2591 echo '.section myfoosect, "a"' > conftest3.s
2592 echo '.byte 0' >> conftest3.s
2593 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2594 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2595 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2596 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2597 conftest2.o conftest3.o > /dev/null 2>&1; then
2598 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2599 | sed -e '/myfoosect/!d' -e N`
2600 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2601 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2602 gcc_cv_ld_ro_rw_mix=read-only
2604 gcc_cv_ld_ro_rw_mix=read-write
2609 rm -f conftest.* conftest[123].*
2612 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2613 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2614 [Define if your linker links a mix of read-only
2615 and read-write sections into a read-write section.])
2617 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2619 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2620 gcc_cv_ld_eh_frame_hdr=no
2621 if test $in_tree_ld = yes ; then
2622 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2623 && test $in_tree_ld_is_elf = yes; then
2624 gcc_cv_ld_eh_frame_hdr=yes
2626 elif test x$gcc_cv_ld != x; then
2627 # Check if linker supports --eh-frame-hdr option
2628 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2629 gcc_cv_ld_eh_frame_hdr=yes
2632 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2633 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2634 [Define if your linker supports --eh-frame-hdr option.])
2636 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2638 AC_MSG_CHECKING(linker position independent executable support)
2640 if test $in_tree_ld = yes ; then
2641 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2642 && test $in_tree_ld_is_elf = yes; then
2645 elif test x$gcc_cv_ld != x; then
2646 # Check if linker supports -pie option
2647 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2651 if test x"$gcc_cv_ld_pie" = xyes; then
2652 AC_DEFINE(HAVE_LD_PIE, 1,
2653 [Define if your linker supports -pie option.])
2655 AC_MSG_RESULT($gcc_cv_ld_pie)
2657 # Miscellaneous target-specific checks.
2660 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2661 gcc_cv_mips_libgloss_startup=no
2662 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2663 if test "x$exec_prefix" = xNONE; then
2664 if test "x$prefix" = xNONE; then
2665 test_prefix=/usr/local
2670 test_prefix=$exec_prefix
2672 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2674 if grep '^STARTUP' $f > /dev/null 2>&1; then
2675 gcc_cv_mips_libgloss_startup=yes
2679 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2680 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2681 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2683 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2685 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2686 if test x$gcc_cv_mips_explicit_relocs = x; then
2687 gcc_cv_mips_explicit_relocs=no
2688 if test $in_tree_gas = yes; then
2689 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2690 gcc_cv_mips_explicit_relocs=yes
2692 elif test x$gcc_cv_as != x; then
2693 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2694 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2695 gcc_cv_mips_explicit_relocs=yes
2697 rm -f conftest.s conftest.o
2700 if test $gcc_cv_mips_explicit_relocs = yes; then
2701 test x$target_cpu_default != x || target_cpu_default=0
2702 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2704 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2708 if test x$with_sysroot = x && test x$host = x$target \
2709 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2710 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2713 # Figure out what language subdirectories are present.
2714 # Look if the user specified --enable-languages="..."; if not, use
2715 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2717 # NB: embedded tabs in this IF block -- do not untabify
2718 if test x"${enable_languages+set}" != xset; then
2719 if test x"${LANGUAGES+set}" = xset; then
2720 enable_languages="${LANGUAGES}"
2721 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2724 enable_languages=all
2727 if test x"${enable_languages}" = x \
2728 || test x"${enable_languages}" = xyes;
2730 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2733 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2735 # First scan to see if an enabled language requires some other language.
2736 # We assume that a given config-lang.in will list all the language
2737 # front ends it requires, even if some are required indirectly.
2738 for lang in ${srcdir}/*/config-lang.in ..
2743 # The odd quoting in the next line works around
2744 # an apparent bug in bash 1.12 on linux.
2746 ${srcdir}/[*]/config-lang.in)
2749 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2750 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2751 for other in $this_lang_requires
2753 case ,${enable_languages}, in
2759 enable_languages="$enable_languages,$other"
2768 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2771 for lang in ${srcdir}/*/config-lang.in ..
2775 # The odd quoting in the next line works around
2776 # an apparent bug in bash 1.12 on linux.
2778 ${srcdir}/[*]/config-lang.in) ;;
2780 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2781 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2782 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2783 if test "x$lang_alias" = x
2785 echo "$lang doesn't set \$language." 1>&2
2788 case ${build_by_default},${enable_languages}, in
2789 *,$lang_alias,*) add_this_lang=yes ;;
2790 no,*) add_this_lang=no ;;
2791 *,all,*) add_this_lang=yes ;;
2792 *) add_this_lang=no ;;
2794 found_languages="${found_languages} ${lang_alias}"
2795 if test x"${add_this_lang}" = xyes; then
2797 ${srcdir}/ada/config-lang.in)
2798 if test x$have_gnat = xyes ; then
2799 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2803 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2813 for expected_language in ${expected_languages} ..
2815 if test "${expected_language}" != ..; then
2816 missing_language="${expected_language}"
2817 if test "${expected_language}" = "c" \
2818 || test "${expected_language}" = "all"; then
2821 for found_language in ${found_languages} ..
2823 if test "${found_language}" != ..; then
2824 if test "${expected_language}" = "${found_language}"; then
2829 if test "x${missing_language}" != x; then
2830 missing_languages="${missing_languages} ${missing_language}"
2835 if test "x$missing_languages" != x; then
2837 The following requested languages were not found:${missing_languages}
2838 The following languages were available: c${found_languages}])
2841 # Make gthr-default.h if we have a thread file.
2843 if test $thread_file != single; then
2844 rm -f gthr-default.h
2845 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2846 gthread_flags=-DHAVE_GTHR_DEFAULT
2848 AC_SUBST(gthread_flags)
2850 # Find out what GC implementation we want, or may, use.
2852 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2859 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2864 echo "Using $GGC for garbage collection."
2866 # Use the system's zlib library.
2868 zlibinc="-I\$(srcdir)/../zlib"
2869 AC_ARG_WITH(system-zlib,
2870 [ --with-system-zlib use installed libz],
2877 dnl Very limited version of automake's enable-maintainer-mode
2879 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2880 dnl maintainer-mode is disabled by default
2881 AC_ARG_ENABLE(maintainer-mode,
2882 [ --enable-maintainer-mode
2883 enable make rules and dependencies not useful
2884 (and sometimes confusing) to the casual installer],
2885 maintainer_mode=$enableval,
2888 AC_MSG_RESULT($maintainer_mode)
2890 if test "$maintainer_mode" = "yes"; then
2897 # Make empty files to contain the specs and options for each language.
2898 # Then add #include lines to for a compiler that has specs and/or options.
2904 for subdir in . $subdirs
2906 if test -f $srcdir/$subdir/lang.opt; then
2907 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2909 if test -f $srcdir/$subdir/lang-specs.h; then
2910 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2912 if test -f $srcdir/$subdir/lang-options.h; then
2913 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2915 if test -f $srcdir/$subdir/$subdir-tree.def; then
2916 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2920 # These (without "all_") are set in each config-lang.in.
2921 # `language' must be a single word so is spelled singularly.
2926 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2927 # List of language makefile fragments.
2929 # Files for gengtype
2930 all_gtfiles="$target_gtfiles"
2931 # Files for gengtype with language
2932 all_gtfiles_files_langs=
2933 all_gtfiles_files_files=
2935 # Add the language fragments.
2936 # Languages are added via two mechanisms. Some information must be
2937 # recorded in makefile variables, these are defined in config-lang.in.
2938 # We accumulate them and plug them into the main Makefile.
2939 # The other mechanism is a set of hooks for each of the main targets
2940 # like `clean', `install', etc.
2942 language_fragments="Make-lang"
2943 language_hooks="Make-hooks"
2945 for s in .. $subdirs
2955 . ${srcdir}/$s/config-lang.in
2956 if test "x$language" = x
2958 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2961 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2962 if test -f ${srcdir}/$s/Makefile.in
2963 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2965 all_languages="$all_languages $language"
2966 if test "x$boot_language" = xyes
2968 all_boot_languages="$all_boot_languages $language"
2970 all_compilers="$all_compilers $compilers"
2971 all_stagestuff="$all_stagestuff $stagestuff"
2972 all_outputs="$all_outputs $outputs"
2973 all_gtfiles="$all_gtfiles $gtfiles"
2974 for f in .. $gtfiles
2978 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2979 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2985 # Pick up gtfiles for c
2988 . ${srcdir}/c-config-lang.in
2989 all_gtfiles="$all_gtfiles $gtfiles"
2990 for f in .. $gtfiles
2994 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2995 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3000 for language in .. $all_languages
3002 if test $language != ".."
3004 check_languages="$check_languages check-$language"
3008 # Since we can't use `::' targets, we link each language in
3009 # with a set of hooks, reached indirectly via lang.${target}.
3013 target_list="all.build all.cross start.encap rest.encap tags \
3014 info dvi generated-manpages \
3015 install-normal install-common install-info install-man \
3017 mostlyclean clean distclean extraclean maintainer-clean \
3018 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3019 for t in $target_list
3022 for lang in .. $all_languages
3024 if test $lang != ".."; then
3028 echo "lang.$t: $x" >> Make-hooks
3033 echo "dir ." > .gdbinit
3034 echo "dir ${srcdir}" >> .gdbinit
3035 if test x$gdb_needs_out_file_path = xyes
3037 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3039 if test "x$subdirs" != x; then
3042 echo "dir ${srcdir}/$s" >> .gdbinit
3045 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3047 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3048 # absolute path for gcc_tooldir based on inserting the number of up-directory
3049 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3050 # $(libsubdir)/@(unlibsubdir) based path.
3051 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3052 # make and thus we'd get different behavior depending on where we built the
3054 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3055 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3057 changequote(<<, >>)dnl
3058 # An explanation of the sed strings:
3059 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3060 # -e 's|/$||' match a trailing forward slash and eliminates it
3061 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3062 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3064 # (*) Note this pattern overwrites the first character of the string
3065 # with a forward slash if one is not already present. This is not a
3066 # problem because the exact names of the sub-directories concerned is
3067 # unimportant, just the number of them matters.
3069 # The practical upshot of these patterns is like this:
3071 # prefix exec_prefix result
3072 # ------ ----------- ------
3074 # /foo/ /foo/bar ../
3075 # /foo /foo/bar/ ../
3076 # /foo/ /foo/bar/ ../
3077 # /foo /foo/bar/ugg ../../
3080 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3081 changequote([, ])dnl
3083 AC_SUBST(gcc_tooldir)
3086 # Find a directory in which to install a shared libgcc.
3088 AC_ARG_ENABLE(version-specific-runtime-libs,
3089 [ --enable-version-specific-runtime-libs
3090 specify that runtime libraries should be
3091 installed in a compiler-specific directory])
3093 AC_ARG_WITH(slibdir,
3094 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3095 slibdir="$with_slibdir",
3096 if test "${enable_version_specific_runtime_libs+set}" = set; then
3097 slibdir='$(libsubdir)'
3098 elif test "$host" != "$target"; then
3099 slibdir='$(build_tooldir)/lib'
3105 objdir=`${PWDCMD-pwd}`
3108 # Process the language and host/target makefile fragments.
3109 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3111 # Substitute configuration variables
3114 AC_SUBST(all_boot_languages)
3115 AC_SUBST(all_compilers)
3116 AC_SUBST(all_gtfiles)
3117 AC_SUBST(all_gtfiles_files_langs)
3118 AC_SUBST(all_gtfiles_files_files)
3119 AC_SUBST(all_lang_makefiles)
3120 AC_SUBST(all_languages)
3121 AC_SUBST(all_stagestuff)
3122 AC_SUBST(build_exeext)
3123 AC_SUBST(build_install_headers_dir)
3124 AC_SUBST(build_xm_file_list)
3125 AC_SUBST(build_xm_file)
3126 AC_SUBST(build_xm_defines)
3127 AC_SUBST(check_languages)
3128 AC_SUBST(cc_set_by_configure)
3129 AC_SUBST(quoted_cc_set_by_configure)
3130 AC_SUBST(cpp_install_dir)
3131 AC_SUBST(dep_host_xmake_file)
3132 AC_SUBST(dep_tmake_file)
3133 AC_SUBST(extra_headers_list)
3134 AC_SUBST(extra_objs)
3135 AC_SUBST(extra_parts)
3136 AC_SUBST(extra_passes)
3137 AC_SUBST(extra_programs)
3138 AC_SUBST(float_h_file)
3139 AC_SUBST(gcc_config_arguments)
3140 AC_SUBST(gcc_gxx_include_dir)
3141 AC_SUBST(libstdcxx_incdir)
3142 AC_SUBST(gcc_version)
3143 AC_SUBST(gcc_version_full)
3144 AC_SUBST(gcc_version_trigger)
3145 AC_SUBST(host_exeext)
3146 AC_SUBST(host_extra_gcc_objs)
3147 AC_SUBST(host_xm_file_list)
3148 AC_SUBST(host_xm_file)
3149 AC_SUBST(host_xm_defines)
3150 AC_SUBST(out_host_hook_obj)
3152 AC_SUBST(lang_opt_files)
3153 AC_SUBST(lang_options_files)
3154 AC_SUBST(lang_specs_files)
3155 AC_SUBST(lang_tree_files)
3156 AC_SUBST(local_prefix)
3158 AC_SUBST(objc_boehm_gc)
3160 AC_SUBST(out_object_file)
3161 AC_SUBST(stage_prefix_set_by_configure)
3162 AC_SUBST(quoted_stage_prefix_set_by_configure)
3163 AC_SUBST(symbolic_link)
3164 AC_SUBST(thread_file)
3165 AC_SUBST(tm_file_list)
3167 AC_SUBST(tm_defines)
3168 AC_SUBST(tm_p_file_list)
3171 AC_SUBST(xm_defines)
3172 AC_SUBST(target_alias)
3173 AC_SUBST(c_target_objs)
3174 AC_SUBST(cxx_target_objs)
3175 AC_SUBST(target_cpu_default)
3177 AC_SUBST_FILE(target_overrides)
3178 AC_SUBST_FILE(host_overrides)
3179 AC_SUBST_FILE(language_fragments)
3180 AC_SUBST_FILE(language_hooks)
3182 # Echo that links are built
3183 if test x$host = x$target
3191 if test x$host != x$build
3193 str3=" on a $build system"
3196 if test "x$str2" != x || test "x$str3" != x
3201 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3203 if test "x$str2" != x || test "x$str3" != x
3205 echo " ${str2}${str3}." 1>&2
3208 # Configure the subdirectories
3209 # AC_CONFIG_SUBDIRS($subdirs)
3211 # Create the Makefile
3212 # and configure language subdirectories
3213 AC_OUTPUT($all_outputs,
3215 case x$CONFIG_HEADERS in
3216 xauto-host.h:config.in)
3219 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3220 # bootstrapping and the installation procedure can still use
3221 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3222 # FLAGS_TO_PASS has been modified to solve the problem there.
3223 # This is virtually a duplicate of what happens in configure.lang; we do
3224 # an extra check to make sure this only happens if ln -s can be used.
3225 if test "$symbolic_link" = "ln -s"; then
3226 for d in .. ${subdirs} fixinc ; do
3227 if test $d != ..; then
3228 STARTDIR=`${PWDCMD-pwd}`
3230 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3233 $symbolic_link ../$t $t 2>/dev/null
3239 # Avoid having to add intl to our include paths.
3240 if test -f intl/libintl.h; then
3241 echo creating libintl.h
3242 echo '#include "intl/libintl.h"' >libintl.h
3246 symbolic_link='$symbolic_link'