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(void *)
253 AC_COMPILE_CHECK_SIZEOF(short)
254 AC_COMPILE_CHECK_SIZEOF(int)
255 AC_COMPILE_CHECK_SIZEOF(long)
256 if test $ac_cv_c_long_long = yes; then
257 AC_COMPILE_CHECK_SIZEOF(long long)
259 if test $ac_cv_c___int64 = yes; then
260 AC_COMPILE_CHECK_SIZEOF(__int64)
267 # See if GNAT has been installed
270 if test x$have_gnat != xno ; then
271 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
272 ac_cv_prog_adac_no_long_long,
273 [cat >conftest.adb <<EOF
274 procedure conftest is begin null; end conftest;
276 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
277 ac_cv_prog_adac_no_long_long=yes
279 ac_cv_prog_adac_no_long_long=no
283 ac_cv_prog_adac_no_long_long=yes
286 # ---------------------
287 # Warnings and checking
288 # ---------------------
291 if test $ac_cv_prog_cc_no_long_long = yes && \
292 test $ac_cv_prog_adac_no_long_long = yes ; then
293 strict1_warn="-pedantic -Wno-long-long"
295 AC_SUBST(strict1_warn)
297 # If the native compiler is GCC, we can enable warnings even in stage1.
298 # That's useful for people building cross-compilers, or just running a
301 if test "x$GCC" = "xyes"; then
302 warn_cflags='$(GCC_WARN_CFLAGS)'
304 AC_SUBST(warn_cflags)
306 # Enable -Werror in bootstrap stage2 and later.
307 # Change the default to "no" on release branches.
308 AC_ARG_ENABLE(werror,
309 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
311 if test x$enable_werror = xyes ; then
316 # Enable expensive internal checks
317 AC_ARG_ENABLE(checking,
318 [ --enable-checking[=LIST]
319 enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
329 case "${enableval}" in
330 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
331 ac_rtlflag_checking=1 ;;
333 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
334 set fnord $enableval; shift
339 misc) ac_checking=1 ;;
340 tree) ac_tree_checking=1 ;;
341 rtlflag) ac_rtlflag_checking=1 ;;
342 rtl) ac_rtl_checking=1 ;;
343 gc) ac_gc_checking=1 ;;
344 gcac) ac_gc_always_collect=1 ;;
345 valgrind) ac_checking_valgrind=1 ;;
346 *) AC_MSG_ERROR(unknown check category $check) ;;
352 # Enable some checks by default for development versions of GCC
353 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
355 if test x$ac_checking != x ; then
356 AC_DEFINE(ENABLE_CHECKING, 1,
357 [Define if you want more run-time sanity checks. This one gets a grab
358 bag of miscellaneous but relatively cheap checks.])
359 nocommon_flag=-fno-common
361 AC_SUBST(nocommon_flag)
362 if test x$ac_tree_checking != x ; then
363 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
364 [Define if you want all operations on trees (the basic data
365 structure of the front ends) to be checked for dynamic type safety
366 at runtime. This is moderately expensive.])
368 if test x$ac_rtl_checking != x ; then
369 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
370 [Define if you want all operations on RTL (the basic data structure
371 of the optimizer and back end) to be checked for dynamic type safety
372 at runtime. This is quite expensive.])
374 if test x$ac_rtlflag_checking != x ; then
375 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
376 [Define if you want RTL flag accesses to be checked against the RTL
377 codes that are supported for each access macro. This is relatively
380 if test x$ac_gc_checking != x ; then
381 AC_DEFINE(ENABLE_GC_CHECKING, 1,
382 [Define if you want the garbage collector to do object poisoning and
383 other memory allocation checks. This is quite expensive.])
385 if test x$ac_gc_always_collect != x ; then
386 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
387 [Define if you want the garbage collector to operate in maximally
388 paranoid mode, validating the entire heap and collecting garbage at
389 every opportunity. This is extremely expensive.])
391 valgrind_path_defines=
393 if test x$ac_checking_valgrind != x ; then
394 # It is certainly possible that there's valgrind but no valgrind.h.
395 # GCC relies on making annotations so we must have both.
396 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
398 [#include <memcheck.h>
399 #ifndef VALGRIND_DISCARD
400 #error VALGRIND_DISCARD not defined
402 [gcc_cv_header_memcheck_h=yes],
403 gcc_cv_header_memcheck_h=no)
404 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
405 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
406 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
407 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
408 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
409 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
411 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
412 valgrind_command="$valgrind_path -q"
413 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
414 [Define if you want to run subprograms and generated programs
415 through valgrind (a memory checker). This is extremely expensive.])
416 if test $gcc_cv_header_memcheck_h = yes; then
417 AC_DEFINE(HAVE_MEMCHECK_H, 1,
418 [Define if valgrind's memcheck.h header is installed.])
421 AC_SUBST(valgrind_path_defines)
422 AC_SUBST(valgrind_command)
424 # Enable code coverage collection
425 AC_ARG_ENABLE(coverage,
426 [ --enable-coverage[=LEVEL]
427 enable compiler\'s code coverage collection.
428 Use to measure compiler performance and locate
429 unused parts of the compiler. With LEVEL, specify
430 optimization. Values are opt, noopt,
432 [case "${enableval}" in
434 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
437 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
440 AC_MSG_ERROR(unknown coverage setting $enableval)
444 AC_SUBST(coverage_flags)
446 # -------------------------------
447 # Miscenalleous configure options
448 # -------------------------------
452 [ --with-stabs arrange to use stabs instead of host debug format],
458 [ --with-elf arrange to use ELF instead of host debug format],
462 # Determine whether or not multilibs are enabled.
463 AC_ARG_ENABLE(multilib,
464 [ --enable-multilib enable library support for multiple ABIs],
465 [], [enable_multilib=yes])
466 AC_SUBST(enable_multilib)
468 # Enable __cxa_atexit for C++.
469 AC_ARG_ENABLE(__cxa_atexit,
470 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
474 # Pass with no value to take the default
475 # Pass with a value to specify a thread package
476 AC_ARG_ENABLE(threads,
477 [ --enable-threads enable thread usage for target GCC
478 --enable-threads=LIB use LIB thread package for target GCC],,
481 enable_threads_flag=$enable_threads
482 # Check if a valid thread package
483 case x${enable_threads_flag} in
486 target_thread_file='single'
490 target_thread_file=''
492 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
493 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
494 target_thread_file=$enable_threads_flag
497 echo "$enable_threads is an unknown thread package" 1>&2
502 AC_ARG_ENABLE(objc-gc,
503 [ --enable-objc-gc enable the use of Boehm's garbage collector with
504 the GNU Objective-C runtime],
505 if test x$enable_objc_gc = xno; then
513 [ --with-dwarf2 force the default debug format to be DWARF 2],
514 dwarf2="$with_dwarf2",
517 AC_ARG_ENABLE(shared,
518 [ --disable-shared don't provide a shared libgcc],
520 case $enable_shared in
524 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
525 for pkg in $enableval; do
526 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
533 ], [enable_shared=yes])
534 AC_SUBST(enable_shared)
537 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
539 case ${with_sysroot} in
540 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
541 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
544 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
545 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
547 if test "x$exec_prefix" = xNONE; then
548 if test "x$prefix" = xNONE; then
549 test_prefix=/usr/local
554 test_prefix=$exec_prefix
556 case ${TARGET_SYSTEM_ROOT} in
557 "${test_prefix}"|"${test_prefix}/"*|\
558 '${exec_prefix}'|'${exec_prefix}/'*)
559 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
560 TARGET_SYSTEM_ROOT_DEFINE="$t"
565 TARGET_SYSTEM_ROOT_DEFINE=
566 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
568 AC_SUBST(TARGET_SYSTEM_ROOT)
569 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
570 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
572 # Build with intermodule optimisations
574 AC_ARG_ENABLE(intermodule,
575 [ --enable-intermodule build the compiler in one step],
576 [case "${enable_intermodule}" in
577 yes) onestep=-onestep : ;;
582 # -------------------------
583 # Checks for other programs
584 # -------------------------
588 # Find some useful tools
595 # See if we have the mktemp command.
596 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
598 # Do we have a single-tree copy of texinfo?
599 if test -f $srcdir/../texinfo/Makefile.in; then
600 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
601 gcc_cv_prog_makeinfo_modern=yes
602 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
604 # See if makeinfo has been installed and is modern enough
605 # that we can use it.
606 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
607 [GNU texinfo.* \([0-9][0-9.]*\)],
611 if test $gcc_cv_prog_makeinfo_modern = no; then
613 *** Makeinfo is missing or too old.
614 *** Info documentation will not be built.])
617 BUILD_INFO=info AC_SUBST(BUILD_INFO)
620 # Is pod2man recent enough to regenerate manpages?
621 AC_MSG_CHECKING([for recent Pod::Man])
622 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
624 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
630 # 'make compare' can be significantly faster, if cmp itself can
631 # skip bytes instead of using tail. The test being performed is
632 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
633 # but we need to sink errors and handle broken shells.
634 AC_MSG_CHECKING([for cmp's capabilities])
637 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
638 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
639 make_compare_target=slowcompare
641 make_compare_target=gnucompare
644 make_compare_target=slowcompare
647 AC_SUBST(make_compare_target)
648 AC_MSG_RESULT($make_compare_target)
651 dnl Don't use AC_PROG_LEX; we insist on flex.
652 dnl LEXLIB is not useful in gcc.
653 if test -f $srcdir/../flex/skel.c; then
654 FLEX='$(objdir)/../flex/flex'
656 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
660 # The -L switch is so bison can find its skeleton file.
661 if test -f $srcdir/../bison/bison.simple; then
662 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
664 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
667 # --------------------
668 # Checks for C headers
669 # --------------------
671 AC_MSG_CHECKING(for GNU C library)
672 AC_CACHE_VAL(gcc_cv_glibc,
674 [#include <features.h>],[
675 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
676 #error Not a GNU C library system
680 AC_MSG_RESULT($gcc_cv_glibc)
681 if test $gcc_cv_glibc = yes; then
682 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
687 gcc_AC_HEADER_STDBOOL
690 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
691 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
692 sys/resource.h sys/param.h sys/times.h sys/stat.h \
693 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
695 # Check for thread headers.
696 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
697 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
699 # These tests can't be done till we know if we have limits.h.
707 # Stage specific cflags for build.
713 stage1_cflags="-Wa,-J"
719 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
720 # sources; use -no-cpp-precomp to get to GNU cpp.
721 # Apple's GCC has bugs in designated initializer handling, so disable
723 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
726 AC_SUBST(stage1_cflags)
728 # These libraries may be used by collect2.
729 # We may need a special search path to get them linked.
730 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
732 for libs in '' -lld -lmld \
733 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
734 '-L/usr/lib/cmplrs/cc3.11 -lmld'
737 AC_TRY_LINK_FUNC(ldopen,
738 [gcc_cv_collect2_libs="$libs"; break])
741 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
742 case $gcc_cv_collect2_libs in
744 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
746 AC_SUBST(COLLECT2_LIBS)
748 # When building Ada code on Alpha, we need exc_resume which is usually in
749 # -lexc. So test for it.
752 AC_SEARCH_LIBS(exc_resume, exc)
755 AC_SUBST(GNAT_LIBEXC)
757 # Some systems put ldexp and frexp in libm instead of libc; assume
758 # they're both in the same place. jcf-dump needs them.
761 AC_SEARCH_LIBS(ldexp, m)
766 # Use <inttypes.h> only if it exists,
767 # doesn't clash with <sys/types.h>, and declares intmax_t.
768 AC_MSG_CHECKING(for inttypes.h)
769 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
771 [#include <sys/types.h>
772 #include <inttypes.h>],
774 [gcc_cv_header_inttypes_h=yes],
775 gcc_cv_header_inttypes_h=no)])
776 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
777 if test $gcc_cv_header_inttypes_h = yes; then
778 AC_DEFINE(HAVE_INTTYPES_H, 1,
779 [Define if you have a working <inttypes.h> header file.])
782 dnl Disabled until we have a complete test for buggy enum bitfields.
783 dnl gcc_AC_C_ENUM_BF_UNSIGNED
785 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
786 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
787 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
788 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
791 if test x$ac_cv_func_mbstowcs = xyes; then
792 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
793 [ AC_TRY_RUN([#include <stdlib.h>
799 gcc_cv_func_mbstowcs_works=yes,
800 gcc_cv_func_mbstowcs_works=no,
801 gcc_cv_func_mbstowcs_works=yes)])
802 if test x$gcc_cv_func_mbstowcs_works = xyes; then
803 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
804 [Define this macro if mbstowcs does not crash when its
805 first argument is NULL.])
809 AC_CHECK_TYPE(ssize_t, int)
811 # Try to determine the array type of the second argument of getgroups
812 # for the target system (int or gid_t).
814 if test "${target}" = "${build}"; then
815 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
818 # This condition may need some tweaking. It should include all
819 # targets where the array type of the second argument of getgroups
820 # is int and the type of gid_t is not equivalent to int.
821 *-*-sunos* | *-*-ultrix*)
822 TARGET_GETGROUPS_T=int
825 TARGET_GETGROUPS_T=gid_t
829 AC_SUBST(TARGET_GETGROUPS_T)
831 gcc_AC_FUNC_PRINTF_PTR
832 gcc_AC_FUNC_MMAP_BLACKLIST
837 *** UWIN may not be used as a host platform because
838 *** linking with posix.dll is not allowed by the GNU GPL])
841 # Under VMS, vfork works very different than on Unix. The standard test
842 # won't work, and it isn't easily adaptable. It makes more sense to
844 ac_cv_func_vfork_works=yes
850 # Until we have in-tree GNU iconv:
852 AC_SUBST(LIBICONV_DEP)
856 # We will need to find libiberty.h and ansidecl.h
857 saved_CFLAGS="$CFLAGS"
858 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
859 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
860 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
861 fprintf_unlocked strstr errno vasprintf \
862 malloc realloc calloc free basename getopt clock, , ,[
863 #include "ansidecl.h"
864 #include "system.h"])
866 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
867 #include "ansidecl.h"
869 #ifdef HAVE_SYS_RESOURCE_H
870 #include <sys/resource.h>
875 #include "ansidecl.h"
877 #ifdef HAVE_SYS_RESOURCE_H
878 #include <sys/resource.h>
880 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
881 [Define to \`long' if <sys/resource.h> doesn't define.])])
883 gcc_AC_CHECK_DECLS(ldgetname, , ,[
884 #include "ansidecl.h"
891 gcc_AC_CHECK_DECLS(times, , ,[
892 #include "ansidecl.h"
894 #ifdef HAVE_SYS_TIMES_H
895 #include <sys/times.h>
899 # More time-related stuff.
900 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
902 #include "ansidecl.h"
904 #ifdef HAVE_SYS_TIMES_H
905 #include <sys/times.h>
907 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
908 if test $ac_cv_struct_tms = yes; then
909 AC_DEFINE(HAVE_STRUCT_TMS, 1,
910 [Define if <sys/times.h> defines struct tms.])
913 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
914 # revisit after autoconf 2.50.
915 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
917 #include "ansidecl.h"
919 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
920 if test $gcc_cv_type_clock_t = yes; then
921 AC_DEFINE(HAVE_CLOCK_T, 1,
922 [Define if <time.h> defines clock_t.])
925 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
927 #include "ansidecl.h"
930 [if ((uchar *)0) return 0;
931 if (sizeof(uchar)) return 0;],
932 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
933 if test $ac_cv_type_uchar = yes; then
934 AC_DEFINE(HAVE_UCHAR, 1,
935 [Define if <sys/types.h> defines \`uchar'.])
938 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
939 CFLAGS="$saved_CFLAGS"
941 gcc_AC_INITFINI_ARRAY
943 # mkdir takes a single argument on some systems.
944 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
952 # With Setjmp/Longjmp based exception handling.
953 AC_ARG_ENABLE(sjlj-exceptions,
954 [ --enable-sjlj-exceptions
955 arrange to use setjmp/longjmp exception handling],
956 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
957 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
958 [Define 0/1 to force the choice for exception handling model.])])
960 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
961 # Use libunwind based exception handling.
962 AC_ARG_ENABLE(libunwind-exceptions,
963 [ --enable-libunwind-exceptions force use libunwind for exceptions],
964 use_libunwind_exceptions=$enableval,
965 use_libunwind_exceptions=$use_libunwind_default)
966 if test x"$use_libunwind_exceptions" = xyes; then
967 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
968 [Define if gcc should use -lunwind.])
971 # --------------------------------------------------------
972 # Build, host, and target specific configuration fragments
973 # --------------------------------------------------------
978 build_install_headers_dir=install-headers-tar
985 # Decode the host machine, then the target machine.
986 # For the host machine, we save the xm_file variable as host_xm_file;
987 # then we decode the target machine and forget everything else
988 # that came from the host machine.
989 for machine in $build $host $target; do
990 . ${srcdir}/config.gcc
993 extra_objs="${host_extra_objs} ${extra_objs}"
995 # Default the target-machine variables that were not explicitly set.
996 if test x"$tm_file" = x
997 then tm_file=$cpu_type/$cpu_type.h; fi
999 if test x"$extra_headers" = x
1000 then extra_headers=; fi
1002 if test x$md_file = x
1003 then md_file=$cpu_type/$cpu_type.md; fi
1005 if test x$out_file = x
1006 then out_file=$cpu_type/$cpu_type.c; fi
1008 if test x"$tmake_file" = x
1009 then tmake_file=$cpu_type/t-$cpu_type
1012 if test x"$dwarf2" = xyes
1013 then tm_file="$tm_file tm-dwarf2.h"
1016 # Say what files are being used for the output code and MD file.
1017 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1018 echo "Using \`$srcdir/config/$md_file' as machine description file."
1020 # If any of the xm_file variables contain nonexistent files, warn
1021 # about them and drop them.
1024 for x in $build_xm_file; do
1025 if test -f $srcdir/config/$x
1027 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1033 for x in $host_xm_file; do
1034 if test -f $srcdir/config/$x
1036 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1042 for x in $xm_file; do
1043 if test -f $srcdir/config/$x
1045 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1051 for f in $tm_file; do
1054 if test $count = ax; then
1055 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1057 echo "Using the following target machine macro files:"
1058 for f in $tm_file; do
1059 echo " $srcdir/config/$f"
1063 if test x$need_64bit_hwint = xyes; then
1064 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1065 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1069 for f in $host_xm_file; do
1072 if test $count = a; then
1074 elif test $count = ax; then
1075 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1077 echo "Using the following host machine macro files:"
1078 for f in $host_xm_file; do
1079 echo " $srcdir/config/$f"
1082 echo "Using ${out_host_hook_obj} for host machine hooks."
1084 if test "$host_xm_file" != "$build_xm_file"; then
1086 for f in $build_xm_file; do
1089 if test $count = a; then
1091 elif test $count = ax; then
1092 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1094 echo "Using the following build machine macro files:"
1095 for f in $build_xm_file; do
1096 echo " $srcdir/config/$f"
1101 if test x$thread_file = x; then
1102 if test x$target_thread_file != x; then
1103 thread_file=$target_thread_file
1105 thread_file='single'
1109 if test x$enable___cxa_atexit = xyes || \
1110 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1111 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1112 [Define if you want to use __cxa_atexit, rather than atexit, to
1113 register C++ destructors for local statics and global objects.
1114 This is essential for fully standards-compliant handling of
1115 destructors, but requires __cxa_atexit in libc.])
1118 # Look for a file containing extra machine modes.
1119 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1120 extra_modes_file='$(srcdir)'/config/${extra_modes}
1121 AC_SUBST(extra_modes_file)
1122 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1123 [Define to the name of a file containing a list of extra machine modes
1124 for this architecture.])
1125 AC_DEFINE(EXTRA_CC_MODES, 1,
1126 [Define if the target architecture needs extra machine modes to represent
1127 the results of comparisons.])
1130 # auto-host.h is the file containing items generated by autoconf and is
1131 # the first file included by config.h.
1132 # If host=build, it is correct to have bconfig include auto-host.h
1133 # as well. If host!=build, we are in error and need to do more
1134 # work to find out the build config parameters.
1135 if test x$host = x$build
1137 build_auto=auto-host.h
1140 # We create a subdir, then run autoconf in the subdir.
1141 # To prevent recursion we set host and build for the new
1142 # invocation of configure to the build for this invocation
1149 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1150 *) realsrcdir=../${srcdir};;
1152 saved_CFLAGS="${CFLAGS}"
1153 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1154 ${realsrcdir}/configure \
1155 --target=$target_alias --host=$build_alias --build=$build_alias
1156 CFLAGS="${saved_CFLAGS}"
1158 # We just finished tests for the build machine, so rename
1159 # the file auto-build.h in the gcc directory.
1160 mv auto-host.h ../auto-build.h
1163 build_auto=auto-build.h
1164 FORBUILD=../${build_subdir}
1168 tm_file="${tm_file} defaults.h"
1169 tm_p_file="${tm_p_file} tm-preds.h"
1170 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1171 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1172 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1173 # put this back in temporarily.
1174 xm_file="ansidecl.h ${xm_file}"
1180 # Get the version trigger filename from the toplevel
1181 if test "${with_gcc_version_trigger+set}" = set; then
1182 gcc_version_trigger=$with_gcc_version_trigger
1184 gcc_version_trigger=${srcdir}/version.c
1187 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1190 # Compile in configure arguments.
1191 if test -f configargs.h ; then
1192 # Being re-configured.
1193 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1194 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1196 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1198 cat > configargs.h <<EOF
1199 /* Generated automatically. */
1200 static const char configuration_arguments[] = "$gcc_config_arguments";
1201 static const char thread_model[] = "$thread_file";
1203 static const struct {
1204 const char *name, *value;
1205 } configure_default_options[] = $configure_default_options;
1209 # Internationalization
1211 VERSION="$gcc_version"
1215 ZW_GNU_GETTEXT_SISTER_DIR
1217 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1218 # -liconv on the link line twice.
1219 case "$LIBINTL" in *$LIBICONV*)
1223 # Windows32 Registry support for specifying GCC installation paths.
1224 AC_ARG_ENABLE(win32-registry,
1225 [ --disable-win32-registry
1226 disable lookup of installation paths in the
1227 Registry on Windows hosts
1228 --enable-win32-registry enable registry lookup (default)
1229 --enable-win32-registry=KEY
1230 use KEY instead of GCC version as the last portion
1231 of the registry key],,)
1233 win32 | pe | cygwin* | mingw32* | uwin*)
1234 AC_MSG_CHECKING(whether windows registry support is requested)
1235 if test "x$enable_win32_registry" != xno; then
1236 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1237 [Define to 1 if installation paths should be looked up in Windows32
1238 Registry. Ignored on non windows32 hosts.])
1240 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1245 # Check if user specified a different registry key.
1246 case "x${enable_win32_registry}" in
1249 gcc_cv_win32_registry_key="$VERSION"
1252 # no registry lookup.
1253 gcc_cv_win32_registry_key=''
1256 # user-specified key.
1257 gcc_cv_win32_registry_key="$enable_win32_registry"
1261 if test "x$enable_win32_registry" != xno; then
1262 AC_MSG_CHECKING(registry key on windows hosts)
1263 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1264 [Define to be the last portion of registry key on windows hosts.])
1265 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1270 # Get an absolute path to the GCC top-level source directory
1271 holddir=`${PWDCMD-pwd}`
1273 topdir=`${PWDCMD-pwd}`
1276 # Conditionalize the makefile for this host machine.
1277 # Make-host contains the concatenation of all host makefile fragments
1278 # [there can be more than one]. This file is built by configure.frag.
1279 host_overrides=Make-host
1280 dep_host_xmake_file=
1281 for f in .. ${host_xmake_file}
1283 if test -f ${srcdir}/config/$f
1285 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1289 # Conditionalize the makefile for this target machine.
1290 # Make-target contains the concatenation of all host makefile fragments
1291 # [there can be more than one]. This file is built by configure.frag.
1292 target_overrides=Make-target
1294 for f in .. ${tmake_file}
1296 if test -f ${srcdir}/config/$f
1298 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1302 symbolic_link='ln -s'
1304 # If the host doesn't support symlinks, modify CC in
1305 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1306 # Otherwise, we can use "CC=$(CC)".
1308 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1310 cc_set_by_configure="\$(CC)"
1311 quoted_cc_set_by_configure="\$(CC)"
1312 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1313 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1316 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1318 symbolic_link="cp -p"
1322 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1323 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1324 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1325 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1329 out_object_file=`basename $out_file .c`.o
1332 for f in $tm_file; do
1335 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1337 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1338 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1343 for f in $tm_p_file; do
1346 tm_p_file_list="${tm_p_file_list} $f" ;;
1347 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1352 for f in $host_xm_file; do
1355 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1357 host_xm_file_list="${host_xm_file_list} $f" ;;
1359 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1360 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1365 for f in $build_xm_file; do
1368 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1369 auto-build.h | auto-host.h )
1370 build_xm_file_list="${build_xm_file_list} $f" ;;
1372 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1373 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1377 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1378 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1379 CROSS= AC_SUBST(CROSS)
1380 ALL=all.internal AC_SUBST(ALL)
1381 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1382 if test x$host != x$target
1384 CROSS="-DCROSS_COMPILE"
1386 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1387 case "$host","$target" in
1388 i?86-*-*,x86_64-*-* \
1389 | powerpc*-*-*,powerpc64*-*-*)
1390 CROSS="$CROSS -DNATIVE_CROSS" ;;
1392 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1393 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1394 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1397 # If this is a cross-compiler that does not
1398 # have its own set of headers then define
1401 # If this is using newlib, without having the headers available now,
1402 # then define inhibit_libc in LIBGCC2_CFLAGS.
1403 # This prevents libgcc2 from containing any code which requires libc
1406 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1407 test x$with_newlib = xyes ; } &&
1408 test "x$with_headers" = x ; then
1409 inhibit_libc=-Dinhibit_libc
1411 AC_SUBST(inhibit_libc)
1413 # When building gcc with a cross-compiler, we need to adjust things so
1414 # that the generator programs are still built with the native compiler.
1415 # Also, we cannot run fixincludes or fix-header.
1417 # These are the normal (build=host) settings:
1418 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1419 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1420 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1421 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1423 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1424 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1426 # And these apply if build != host, or we are generating coverage data
1427 if test x$build != x$host || test "x$coverage_flags" != x
1430 BUILD_PREFIX_1=build-
1431 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1433 if test "x$TARGET_SYSTEM_ROOT" = x; then
1439 # Expand extra_headers to include complete path.
1440 # This substitutes for lots of t-* files.
1442 if test "x$extra_headers" = x
1445 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1446 for file in $extra_headers;
1448 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1452 # Add a definition of USE_COLLECT2 if system wants one.
1453 case $use_collect2 in
1454 no) use_collect2= ;;
1457 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1458 xm_defines="${xm_defines} USE_COLLECT2"
1462 # Identify the assembler which will work hand-in-glove with the newly
1463 # built GCC, so that we can examine its features. This is the assembler
1464 # which will be driven by the driver program.
1466 # If build != host, and we aren't building gas in-tree, we identify a
1467 # build->target assembler and hope that it will have the same features
1468 # as the host->target assembler we'll be using.
1469 AC_MSG_CHECKING(what assembler to use)
1472 gcc_cv_gas_major_version=
1473 gcc_cv_gas_minor_version=
1474 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1475 if test -x "$DEFAULT_ASSEMBLER"; then
1476 gcc_cv_as="$DEFAULT_ASSEMBLER"
1477 elif test -x "$AS"; then
1479 elif test -x as$host_exeext; then
1480 # Build using assembler in the current directory.
1481 gcc_cv_as=./as$host_exeext
1482 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1483 && test -f ../gas/Makefile; then
1484 # Single tree build which includes gas.
1486 _gcc_COMPUTE_GAS_VERSION
1487 rm -f as$host_exeext
1488 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1489 in_tree_gas_is_elf=no
1490 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1491 || (grep 'obj_format = multi' ../gas/Makefile \
1492 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1494 in_tree_gas_is_elf=yes
1498 if test "x$gcc_cv_as" = x; then
1499 # Search the same directories that the installed compiler will
1500 # search. Else we may find the wrong assembler and lose. If we
1501 # do not find a suitable assembler binary, then try the user's
1504 # Also note we have to check MD_EXEC_PREFIX before checking the
1505 # user's path. Unfortunately, there is no good way to get at the
1506 # value of MD_EXEC_PREFIX here. So we do a brute force search
1507 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1508 # to be fixed as part of the make/configure rewrite too.
1510 if test "x$exec_prefix" = xNONE; then
1511 if test "x$prefix" = xNONE; then
1512 test_prefix=/usr/local
1517 test_prefix=$exec_prefix
1520 # If the loop below does not find an assembler, then use whatever
1521 # one we can find in the users's path.
1523 if test "x$program_prefix" != xNONE; then
1524 gcc_cv_as=${program_prefix}as$host_exeext
1526 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1529 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1530 $test_prefix/lib/gcc-lib/$target_alias \
1531 /usr/lib/gcc/$target_alias/$gcc_version \
1532 /usr/lib/gcc/$target_alias \
1533 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1534 $test_prefix/$target_alias/bin"
1536 if test x$host = x$target; then
1537 test_dirs="$test_dirs \
1542 /bsd43/usr/lib/cmplrs/cc \
1543 /usr/cross64/usr/bin \
1544 /usr/lib/cmplrs/cc \
1545 /sysv/usr/lib/cmplrs/cc \
1546 /svr4/usr/lib/cmplrs/cc \
1550 for dir in $test_dirs; do
1551 if test -x $dir/as$host_exeext; then
1552 gcc_cv_as=$dir/as$host_exeext
1557 case $in_tree_gas in
1559 AC_MSG_RESULT("newly built gas")
1562 AC_MSG_RESULT($gcc_cv_as)
1566 # Identify the linker which will work hand-in-glove with the newly
1567 # built GCC, so that we can examine its features. This is the linker
1568 # which will be driven by the driver program.
1570 # If build != host, and we aren't building gas in-tree, we identify a
1571 # build->target linker and hope that it will have the same features
1572 # as the host->target linker we'll be using.
1573 AC_MSG_CHECKING(what linker to use)
1576 gcc_cv_gld_major_version=
1577 gcc_cv_gld_minor_version=
1578 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1579 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1580 if test -x "$DEFAULT_LINKER"; then
1581 gcc_cv_ld="$DEFAULT_LINKER"
1582 elif test -x "$LD"; then
1584 elif test -x collect-ld$host_exeext; then
1585 # Build using linker in the current directory.
1586 gcc_cv_ld=./collect-ld$host_exeext
1587 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1588 && test -f ../ld/Makefile; then
1589 # Single tree build which includes ld.
1591 in_tree_ld_is_elf=no
1592 if (grep 'EMUL = .*elf' ../ld/Makefile \
1593 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1594 in_tree_ld_is_elf=yes
1596 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
1599 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1601 if test x$gcc_cv_gld_version != x; then
1606 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1607 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1609 rm -f collect-ld$host_exeext
1610 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1614 if test "x$gcc_cv_ld" = x; then
1615 # Search the same directories that the installed compiler will
1616 # search. Else we may find the wrong linker and lose. If we
1617 # do not find a suitable linker binary, then try the user's
1620 # Also note we have to check MD_EXEC_PREFIX before checking the
1621 # user's path. Unfortunately, there is no good way to get at the
1622 # value of MD_EXEC_PREFIX here. So we do a brute force search
1623 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1624 # to be fixed as part of the make/configure rewrite too.
1626 if test "x$exec_prefix" = xNONE; then
1627 if test "x$prefix" = xNONE; then
1628 test_prefix=/usr/local
1633 test_prefix=$exec_prefix
1636 # If the loop below does not find an linker, then use whatever
1637 # one we can find in the users's path.
1639 if test "x$program_prefix" != xNONE; then
1640 gcc_cv_ld=${program_prefix}ld$host_exeext
1642 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1645 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1646 $test_prefix/lib/gcc-lib/$target_alias \
1647 /usr/lib/gcc/$target_alias/$gcc_version \
1648 /usr/lib/gcc/$target_alias \
1649 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1650 $test_prefix/$target_alias/bin"
1652 if test x$host = x$target; then
1653 test_dirs="$test_dirs \
1658 /bsd43/usr/lib/cmplrs/cc \
1659 /usr/cross64/usr/bin \
1660 /usr/lib/cmplrs/cc \
1661 /sysv/usr/lib/cmplrs/cc \
1662 /svr4/usr/lib/cmplrs/cc \
1666 for dir in $test_dirs; do
1667 if test -x $dir/ld$host_exeext; then
1668 gcc_cv_ld=$dir/ld$host_exeext
1675 AC_MSG_RESULT("newly built ld")
1678 AC_MSG_RESULT($gcc_cv_ld)
1682 # Figure out what nm we will be using.
1683 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1684 AC_MSG_CHECKING(what nm to use)
1686 if test -x nm$host_exeext; then
1687 gcc_cv_nm=./nm$host_exeext
1688 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1689 && test -f ../binutils/Makefile; then
1690 # Single tree build which includes binutils.
1692 gcc_cv_nm=./nm$host_exeext
1693 rm -f nm$host_exeext
1694 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1695 elif test "x$program_prefix" != xNONE; then
1696 gcc_cv_nm=${program_prefix}nm$host_exeext
1698 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1701 yes) AC_MSG_RESULT("newly built nm") ;;
1702 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1705 # Figure out what objdump we will be using.
1706 AC_MSG_CHECKING(what objdump to use)
1708 if test -x objdump$host_exeext; then
1709 gcc_cv_objdump=./objdump$host_exeext
1710 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1711 && test -f ../binutils/Makefile; then
1712 # Single tree build which includes binutils.
1714 gcc_cv_objdump=./objdump$host_exeext
1715 rm -f objdump$host_exeext
1716 $symbolic_link ../binutils/objdump$host_exeext \
1717 objdump$host_exeext 2>/dev/null
1718 elif test "x$program_prefix" != xNONE; then
1719 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1721 gcc_cv_objdump=`echo objdump | \
1722 sed ${program_transform_name}`$host_exeext
1724 case $in_tree_objdump in
1725 yes) AC_MSG_RESULT("newly built objdump") ;;
1726 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1729 # Figure out what assembler alignment features are present.
1730 AC_MSG_CHECKING(assembler alignment features)
1731 gcc_cv_as_alignment_features=none
1732 if test $in_tree_gas = yes; then
1733 # Gas version 2.6 and later support for .balign and .p2align.
1734 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1735 gcc_cv_as_alignment_features=".balign and .p2align"
1736 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1738 # Gas version 2.8 and later support specifying the maximum
1739 # bytes to skip when using .p2align.
1740 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1741 gcc_cv_as_alignment_features=".p2align including maximum skip"
1742 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1744 elif test x$gcc_cv_as != x; then
1745 # Check if we have .balign and .p2align
1746 echo ".balign 4" > conftest.s
1747 echo ".p2align 2" >> conftest.s
1748 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1749 gcc_cv_as_alignment_features=".balign and .p2align"
1750 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1752 rm -f conftest.s conftest.o
1753 # Check if specifying the maximum bytes to skip when
1754 # using .p2align is supported.
1755 echo ".p2align 4,,7" > conftest.s
1756 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1757 gcc_cv_as_alignment_features=".p2align including maximum skip"
1758 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1760 rm -f conftest.s conftest.o
1762 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1764 AC_MSG_CHECKING(assembler subsection support)
1765 gcc_cv_as_subsections=no
1766 if test $in_tree_gas = yes ; then
1767 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1768 test $in_tree_gas_is_elf = yes \
1769 && gcc_cv_as_subsections="working .subsection -1"
1771 elif test x$gcc_cv_as != x; then
1772 # Check if we have .subsection
1773 echo ".subsection 1" > conftest.s
1774 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1775 gcc_cv_as_subsections=".subsection"
1776 if test x$gcc_cv_nm != x; then
1777 cat > conftest.s <<EOF
1778 conftest_label1: .word 0
1780 conftest_label2: .word 0
1783 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1784 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1785 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1786 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1789 gcc_cv_as_subsections="working .subsection -1"
1794 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1796 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1797 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1798 [Define if your assembler supports .subsection and .subsection -1 starts
1799 emitting at the beginning of your section.])
1801 AC_MSG_RESULT($gcc_cv_as_subsections)
1803 AC_MSG_CHECKING(assembler weak support)
1805 if test $in_tree_gas = yes ; then
1806 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1807 gcc_cv_as_weak="yes"
1809 elif test x$gcc_cv_as != x; then
1810 # Check if we have .weak
1811 echo " .weak foobar" > conftest.s
1812 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1813 gcc_cv_as_weak="yes"
1815 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1817 if test x"$gcc_cv_as_weak" = xyes; then
1818 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1820 AC_MSG_RESULT($gcc_cv_as_weak)
1822 AC_MSG_CHECKING(assembler hidden support)
1824 if test $in_tree_gas = yes ; then
1825 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1826 test $in_tree_gas_is_elf = yes && gcc_cv_as_hidden="yes"
1828 elif test x$gcc_cv_as != x; then
1829 # Check if we have .hidden
1830 echo " .hidden foobar" > conftest.s
1831 echo "foobar:" >> conftest.s
1832 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1833 gcc_cv_as_hidden="yes"
1835 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1837 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1838 # This is irritatingly difficult to feature test for. Look for
1839 # the date string after the version number.
1840 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1841 if echo "$ld_ver" | grep GNU > /dev/null; then
1843 ld_vers=`echo $ld_ver | sed -n \
1844 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1845 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1846 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1847 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1848 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1849 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1850 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1851 if test 0"$ld_date" -lt 20020404; then
1852 if test -n "$ld_date"; then
1853 # If there was date string, but was earlier than 2002-04-04, fail
1854 gcc_cv_as_hidden="no"
1855 elif test -z "$ld_vers"; then
1856 # If there was no date string nor ld version number, something is wrong
1857 gcc_cv_as_hidden="no"
1859 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1860 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1861 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1862 test -z "$ld_vers_patch" && ld_vers_patch=0
1863 if test "$ld_vers_major" -lt 2; then
1864 gcc_cv_as_hidden="no"
1865 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1866 gcc_cv_as_hidden="no"
1867 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1868 -a "$ld_vers_patch" -eq 0; then
1869 gcc_cv_as_hidden="no"
1878 if test x"$gnu_ld_flag" = x"no"; then
1879 # Even if using gas with .hidden support, the resulting object files
1880 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1881 # N64 linkers, the problem is that the linker refuses to accept
1882 # -call_shared (passed by default to the linker) and -r (used to
1883 # link the object file generated without .hidden directives with
1884 # one that hides symbols), so we also lose.
1889 if test x"$gcc_cv_as_hidden" = xyes; then
1890 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1891 [Define if your assembler supports .hidden.])
1893 AC_MSG_RESULT($gcc_cv_as_hidden)
1894 libgcc_visibility=$gcc_cv_as_hidden
1895 AC_SUBST(libgcc_visibility)
1897 AC_MSG_CHECKING(assembler leb128 support)
1899 if test $in_tree_gas = yes ; then
1900 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1901 test $in_tree_gas_is_elf = yes && gcc_cv_as_leb128="yes"
1903 elif test x$gcc_cv_as != x; then
1904 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1905 cat > conftest.s <<EOF
1913 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1914 gcc_cv_as_leb128="yes"
1916 # GAS versions before 2.11 do not support uleb128,
1917 # despite appearing to.
1918 # ??? There exists an elf-specific test that will crash
1919 # the assembler. Perhaps it's better to figure out whether
1920 # arbitrary sections are supported and try the test.
1921 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1922 if echo "$as_ver" | grep GNU > /dev/null; then
1924 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1925 as_major=`echo $as_ver | sed 's/\..*//'`
1926 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1928 if test $as_major -eq 2 -a $as_minor -lt 11; then
1929 gcc_cv_as_leb128="no"
1933 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1935 if test x"$gcc_cv_as_leb128" = xyes; then
1936 AC_DEFINE(HAVE_AS_LEB128, 1,
1937 [Define if your assembler supports .uleb128.])
1939 AC_MSG_RESULT($gcc_cv_as_leb128)
1941 AC_MSG_CHECKING(assembler eh_frame optimization)
1942 gcc_cv_as_eh_frame=no
1943 if test $in_tree_gas = yes ; then
1944 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1945 test $in_tree_gas_is_elf = yes && gcc_cv_as_eh_frame="yes"
1947 elif test x$gcc_cv_as != x; then
1948 # Check if this is GAS.
1949 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1950 rm -f a.out 2> /dev/null
1951 if echo "$as_ver" | grep GNU > /dev/null; then
1952 # Versions up to and including 2.11.0 may mis-optimize
1953 # .eh_frame data. Try something.
1954 cat > conftest.s <<EOF
1961 .section .eh_frame,"aw",@progbits
1963 .4byte .LECIE1-.LSCIE1
1977 .4byte .LEFDE1-.LASFDE1
1979 .4byte .LASFDE1-__FRAME_BEGIN__
1988 cat > conftest.lit <<EOF
1989 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1990 0010 01000000 12000000 18000000 00000000 ................
1991 0020 08000000 04080000 0044 .........D
1993 cat > conftest.big <<EOF
1994 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1995 0010 00000001 00000012 00000018 00000000 ................
1996 0020 00000008 04000000 0844 .........D
1998 # If the assembler didn't choke, and we can objdump,
1999 # and we got the correct data, then succeed.
2000 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2001 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2002 | tail -3 > conftest.got \
2003 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2004 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2006 gcc_cv_as_eh_frame="yes"
2008 gcc_cv_as_eh_frame="bad"
2009 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2010 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2011 [Define if your assembler mis-optimizes .eh_frame data.])
2017 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2019 AC_MSG_CHECKING(assembler section merging support)
2020 gcc_cv_as_shf_merge=no
2021 if test $in_tree_gas = yes ; then
2022 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2023 test $in_tree_gas_is_elf = yes && gcc_cv_as_shf_merge="yes"
2025 elif test x$gcc_cv_as != x; then
2026 # Check if we support SHF_MERGE sections
2027 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2028 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2029 gcc_cv_as_shf_merge=yes
2031 rm -f conftest.s conftest.o
2033 if test x"$gcc_cv_as_shf_merge" = xyes; then
2034 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2035 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2037 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2039 AC_MSG_CHECKING(assembler thread-local storage support)
2049 .section ".tdata","awT",@progbits
2052 ldq $27,__tls_get_addr($29) !literal!1
2053 lda $16,foo($29) !tlsgd!1
2054 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2055 ldq $27,__tls_get_addr($29) !literal!2
2056 lda $16,foo($29) !tlsldm!2
2057 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2058 ldq $1,foo($29) !gotdtprel
2059 ldah $2,foo($29) !dtprelhi
2060 lda $3,foo($2) !dtprello
2061 lda $4,foo($29) !dtprel
2062 ldq $1,foo($29) !gottprel
2063 ldah $2,foo($29) !tprelhi
2064 lda $3,foo($2) !tprello
2065 lda $4,foo($29) !tprel'
2072 .section ".tdata","awT",@progbits
2076 leal foo@TLSGD(,%ebx,1), %eax
2077 leal foo@TLSLDM(%ebx), %eax
2078 leal foo@DTPOFF(%eax), %edx
2079 movl foo@GOTTPOFF(%ebx), %eax
2080 subl foo@GOTTPOFF(%ebx), %eax
2081 addl foo@GOTNTPOFF(%ebx), %eax
2082 movl foo@INDNTPOFF, %eax
2083 movl $foo@TPOFF, %eax
2084 subl $foo@TPOFF, %eax
2085 leal foo@NTPOFF(%ecx), %eax'
2091 .section ".tdata","awT",@progbits
2095 leaq foo@TLSGD(%rip), %rdi
2096 leaq foo@TLSLD(%rip), %rdi
2097 leaq foo@DTPOFF(%rax), %rdx
2098 movq foo@GOTTPOFF(%rip), %rax
2099 movq $foo@TPOFF, %rax'
2105 .section ".tdata","awT",@progbits
2108 addl r16 = @ltoff(@dtpmod(foo#)), gp
2109 addl r17 = @ltoff(@dtprel(foo#)), gp
2110 addl r18 = @ltoff(@tprel(foo#)), gp
2111 addl r19 = @dtprel(foo#), gp
2112 adds r21 = @dtprel(foo#), r13
2113 movl r23 = @dtprel(foo#)
2114 addl r20 = @tprel(foo#), gp
2115 adds r22 = @tprel(foo#), r13
2116 movl r24 = @tprel(foo#)'
2122 .section ".tdata","awT",@progbits
2130 addi 3,31,ld0@got@tlsgd
2132 addi 3,31,x1@got@tlsld
2135 addis 9,3,x2@dtprel@ha
2136 addi 9,9,x2@dtprel@l
2137 lwz 9,x3@got@tprel(31)
2140 addis 9,2,x2@tprel@ha
2141 addi 9,9,x2@tprel@l'
2148 .section ".tdata","awT",@progbits
2156 addi 3,2,ld0@got@tlsgd
2162 addi 3,2,x1@got@tlsld
2168 addis 9,3,x2@dtprel@ha
2169 addi 9,9,x2@dtprel@l
2172 ld 9,x3@got@dtprel(2)
2182 .section ".tdata","awT",@progbits
2191 l %r1,foo@GOTNTPOFF(%r12)
2192 l %r1,0(%r1):tls_load:foo
2193 bas %r14,0(%r1,%r13):tls_gdcall:foo
2194 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2201 .section ".tdata","awT",@progbits
2209 lg %r1,foo@GOTNTPOFF(%r12)
2210 larl %r1,foo@INDNTPOFF
2211 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2212 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2215 tls_as_opt="-m64 -Aesame"
2218 if test -z "$tls_first_major"; then
2220 elif test $in_tree_gas = yes ; then
2221 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2224 elif test x$gcc_cv_as != x; then
2225 echo "$conftest_s" > conftest.s
2226 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2230 rm -f conftest.s conftest.o
2232 if test "$gcc_cv_as_tls" = yes; then
2233 AC_DEFINE(HAVE_AS_TLS, 1,
2234 [Define if your assembler supports thread-local storage.])
2236 AC_MSG_RESULT($gcc_cv_as_tls)
2239 # All TARGET_ABI_OSF targets.
2240 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2241 AC_CACHE_CHECK([assembler supports explicit relocations],
2242 gcc_cv_as_explicit_relocs, [
2243 gcc_cv_as_explicit_relocs=unknown
2244 if test $in_tree_gas = yes ; then
2245 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2246 gcc_cv_as_explicit_relocs=yes
2248 elif test x$gcc_cv_as != x; then
2249 cat > conftest.s << 'EOF'
2252 extbl $3, $2, $3 !lituse_bytoff!1
2253 ldq $2, a($29) !literal!1
2254 ldq $4, b($29) !literal!2
2255 ldq_u $3, 0($2) !lituse_base!1
2256 ldq $27, f($29) !literal!5
2257 jsr $26, ($27), f !lituse_jsr!5
2258 ldah $29, 0($26) !gpdisp!3
2259 lda $0, c($29) !gprel
2260 ldah $1, d($29) !gprelhigh
2261 lda $1, d($1) !gprellow
2262 lda $29, 0($29) !gpdisp!3
2264 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2265 gcc_cv_as_explicit_relocs=yes
2267 gcc_cv_as_explicit_relocs=no
2269 rm -f conftest.s conftest.o
2272 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2273 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2274 [Define if your assembler supports explicit relocations.])
2278 AC_CACHE_CHECK([assembler .register pseudo-op support],
2279 gcc_cv_as_register_pseudo_op, [
2280 gcc_cv_as_register_pseudo_op=unknown
2281 if test x$gcc_cv_as != x; then
2282 # Check if we have .register
2283 echo ".register %g2, #scratch" > conftest.s
2284 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2285 gcc_cv_as_register_pseudo_op=yes
2287 gcc_cv_as_register_pseudo_op=no
2289 rm -f conftest.s conftest.o
2292 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2293 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2294 [Define if your assembler supports .register.])
2297 AC_CACHE_CHECK([assembler supports -relax],
2298 gcc_cv_as_relax_opt, [
2299 gcc_cv_as_relax_opt=unknown
2300 if test x$gcc_cv_as != x; then
2301 # Check if gas supports -relax
2302 echo ".text" > conftest.s
2303 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2304 gcc_cv_as_relax_opt=yes
2306 gcc_cv_as_relax_opt=no
2308 rm -f conftest.s conftest.o
2311 if test "x$gcc_cv_as_relax_opt" = xyes; then
2312 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2313 [Define if your assembler supports -relax option.])
2316 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2317 gcc_cv_as_sparc_ua_pcrel, [
2318 gcc_cv_as_sparc_ua_pcrel=unknown
2319 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2320 gcc_cv_as_sparc_ua_pcrel=no
2321 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2322 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2323 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2324 gcc_cv_as_sparc_ua_pcrel=yes
2326 rm -f conftest.s conftest.o conftest
2329 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2330 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2331 [Define if your assembler and linker support unaligned PC relative relocs.])
2334 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2335 gcc_cv_as_sparc_ua_pcrel_hidden, [
2336 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2337 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2338 if test x$gcc_cv_objdump != x; then
2339 gcc_cv_as_sparc_ua_pcrel_hidden=no
2340 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2341 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2342 echo "foo: .skip 4" >> conftest.s
2343 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2344 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2345 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2346 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2347 if $gcc_cv_objdump -R conftest 2> /dev/null \
2348 | grep 'DISP32' > /dev/null 2>&1; then
2351 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2355 rm -f conftest.s conftest.o conftest
2357 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2360 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2361 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2362 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2365 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2366 gcc_cv_as_offsetable_lo10, [
2367 gcc_cv_as_offsetable_lo10=unknown
2368 if test "x$gcc_cv_as" != x; then
2369 # Check if assembler has offsetable %lo()
2370 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2371 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2372 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2374 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2375 > /dev/null 2>&1; then
2376 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2377 gcc_cv_as_offsetable_lo10=no
2379 gcc_cv_as_offsetable_lo10=yes
2382 gcc_cv_as_offsetable_lo10=no
2384 rm -f conftest.s conftest.o conftest1.s conftest1.o
2387 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2388 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2389 [Define if your assembler supports offsetable %lo().])
2395 i[34567]86-*-* | x86_64-*-*)
2397 AC_MSG_CHECKING(assembler instructions)
2398 gcc_cv_as_instructions=
2399 if test $in_tree_gas = yes ; then
2400 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2401 gcc_cv_as_instructions="filds fists"
2403 elif test x$gcc_cv_as != x; then
2404 set "filds fists" "filds mem; fists mem"
2407 echo "$2" > conftest.s
2408 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2409 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2413 rm -f conftest.s conftest.o
2415 if test x"$gcc_cv_as_instructions" != x; then
2416 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2418 AC_MSG_RESULT($gcc_cv_as_instructions)
2420 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2421 gcc_cv_as_gotoff_in_data=no
2422 if test $in_tree_gas = yes ; then
2423 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2424 gcc_cv_as_gotoff_in_data=yes
2426 elif test x$gcc_cv_as != x; then
2427 cat > conftest.s <<EOF
2434 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2435 gcc_cv_as_gotoff_in_data=yes
2438 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2439 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2440 [Define true if the assembler supports '.long foo@GOTOFF'.])
2441 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2445 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2446 gcc_cv_as_ltoffx_ldxmov_relocs, [
2447 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2448 if test $in_tree_gas = yes ; then
2449 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2450 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2452 elif test x$gcc_cv_as != x; then
2453 cat > conftest.s << 'EOF'
2456 addl r15 = @ltoffx(x#), gp
2458 ld8.mov r16 = [r15], x#
2461 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2462 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2464 gcc_cv_as_ltoffx_ldxmov_relocs=no
2466 rm -f conftest.s conftest.o
2469 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2470 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2471 [Define if your assembler supports ltoffx and ldxmov relocations.])
2475 AC_CACHE_CHECK([assembler supports mfcr field],
2477 gcc_cv_as_mfcrf=unknown
2478 if test $in_tree_gas = yes ; then
2479 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2482 elif test x$gcc_cv_as != x; then
2483 cat > conftest.s << 'EOF'
2496 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2501 rm -f conftest.s conftest.o
2504 if test "x$gcc_cv_as_mfcrf" = xyes; then
2505 AC_DEFINE(HAVE_AS_MFCRF, 1,
2506 [Define if your assembler supports mfcr field.])
2511 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2512 gcc_cv_as_dwarf2_debug_line=no
2513 # ??? Not all targets support dwarf2 debug_line, even within a version
2514 # of gas. Moreover, we need to emit a valid instruction to trigger any
2515 # info to the output file. So, as supported targets are added to gas 2.11,
2516 # add some instruction here to (also) show we expect this might work.
2517 # ??? Once 2.11 is released, probably need to add first known working
2518 # version to the per-target configury.
2520 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2521 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2522 | xstormy16*-*-* | cris-*-*)
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_dwarf2_debug_line="yes"
2537 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2538 echo ' .file 1 "conftest.s"' > conftest.s
2539 echo ' .loc 1 3 0' >> conftest.s
2540 echo " $insn" >> conftest.s
2541 # ??? This fails with non-gnu grep.
2542 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2543 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2544 # The .debug_line file table must be in the exact order that
2545 # we specified the files, since these indices are also used
2546 # by DW_AT_decl_file. Approximate this test by testing if
2547 # the assembler bitches if the same index is assigned twice.
2548 echo ' .file 1 "foo.s"' > conftest.s
2549 echo ' .file 1 "bar.s"' >> conftest.s
2550 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2552 gcc_cv_as_dwarf2_debug_line="no"
2554 gcc_cv_as_dwarf2_debug_line="yes"
2557 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2559 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2560 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2561 [Define if your assembler supports dwarf2 .file/.loc directives,
2562 and preserves file table indices exactly as given.])
2564 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2566 AC_MSG_CHECKING(assembler --gdwarf2 support)
2567 gcc_cv_as_gdwarf2_flag=no
2568 if test $in_tree_gas = yes ; then
2569 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2570 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2571 && gcc_cv_as_gdwarf2_flag="yes"
2573 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2574 echo '' > conftest.s
2575 # ??? This fails with non-gnu grep.
2576 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2578 gcc_cv_as_gdwarf2_flag="yes"
2580 rm -f conftest.s conftest.o
2582 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2583 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2584 [Define if your assembler supports the --gdwarf2 option.])
2586 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2588 AC_MSG_CHECKING(assembler --gstabs support)
2589 gcc_cv_as_gstabs_flag=no
2590 if test $in_tree_gas = yes ; then
2591 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2592 test $in_tree_gas_is_elf = yes && test x"$insn" != x \
2593 && gcc_cv_as_gstabs_flag="yes"
2595 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2596 echo '' > conftest.s
2597 # ??? This fails with non-gnu grep.
2598 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2599 gcc_cv_as_gstabs_flag="yes"
2600 # The native Solaris 9/Intel assembler doesn't understand --gstabs
2601 # and warns about it, but still exits successfully. So check for
2603 if $gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | \
2604 grep -i warning > /dev/null ; then
2605 gcc_cv_as_gstabs_flag="no"
2608 rm -f conftest.s conftest.o
2610 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2611 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2612 [Define if your assembler supports the --gstabs option.])
2614 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2616 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2617 gcc_cv_ld_ro_rw_mix=unknown
2618 if test $in_tree_ld = yes ; then
2619 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2620 && test $in_tree_ld_is_elf = yes; then
2621 gcc_cv_ld_ro_rw_mix=read-write
2623 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2624 echo '.section myfoosect, "a"' > conftest1.s
2625 echo '.section myfoosect, "aw"' > conftest2.s
2626 echo '.byte 1' >> conftest2.s
2627 echo '.section myfoosect, "a"' > conftest3.s
2628 echo '.byte 0' >> conftest3.s
2629 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2630 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2631 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2632 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2633 conftest2.o conftest3.o > /dev/null 2>&1; then
2634 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2635 | sed -e '/myfoosect/!d' -e N`
2636 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2637 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2638 gcc_cv_ld_ro_rw_mix=read-only
2640 gcc_cv_ld_ro_rw_mix=read-write
2645 rm -f conftest.* conftest[123].*
2648 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2649 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2650 [Define if your linker links a mix of read-only
2651 and read-write sections into a read-write section.])
2653 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2655 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2656 gcc_cv_ld_eh_frame_hdr=no
2657 if test $in_tree_ld = yes ; then
2658 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2659 && test $in_tree_ld_is_elf = yes; then
2660 gcc_cv_ld_eh_frame_hdr=yes
2662 elif test x$gcc_cv_ld != x; then
2663 # Check if linker supports --eh-frame-hdr option
2664 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2665 gcc_cv_ld_eh_frame_hdr=yes
2668 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2669 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2670 [Define if your linker supports --eh-frame-hdr option.])
2672 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2674 AC_MSG_CHECKING(linker position independent executable support)
2676 if test $in_tree_ld = yes ; then
2677 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2678 && test $in_tree_ld_is_elf = yes; then
2681 elif test x$gcc_cv_ld != x; then
2682 # Check if linker supports -pie option
2683 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2687 if test x"$gcc_cv_ld_pie" = xyes; then
2688 AC_DEFINE(HAVE_LD_PIE, 1,
2689 [Define if your linker supports -pie option.])
2691 AC_MSG_RESULT($gcc_cv_ld_pie)
2693 # Miscellaneous target-specific checks.
2696 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2697 gcc_cv_mips_libgloss_startup=no
2698 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2699 if test "x$exec_prefix" = xNONE; then
2700 if test "x$prefix" = xNONE; then
2701 test_prefix=/usr/local
2706 test_prefix=$exec_prefix
2708 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2710 if grep '^STARTUP' $f > /dev/null 2>&1; then
2711 gcc_cv_mips_libgloss_startup=yes
2715 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2716 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2717 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2719 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2721 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2722 if test x$gcc_cv_mips_explicit_relocs = x; then
2723 gcc_cv_mips_explicit_relocs=no
2724 if test $in_tree_gas = yes; then
2725 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2726 gcc_cv_mips_explicit_relocs=yes
2728 elif test x$gcc_cv_as != x; then
2729 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2730 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2731 gcc_cv_mips_explicit_relocs=yes
2733 rm -f conftest.s conftest.o
2736 if test $gcc_cv_mips_explicit_relocs = yes; then
2737 test x$target_cpu_default != x || target_cpu_default=0
2738 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2740 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2744 if test x$with_sysroot = x && test x$host = x$target \
2745 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2746 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2749 # Figure out what language subdirectories are present.
2750 # Look if the user specified --enable-languages="..."; if not, use
2751 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2753 # NB: embedded tabs in this IF block -- do not untabify
2754 if test x"${enable_languages+set}" != xset; then
2755 if test x"${LANGUAGES+set}" = xset; then
2756 enable_languages="${LANGUAGES}"
2757 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2760 enable_languages=all
2763 if test x"${enable_languages}" = x \
2764 || test x"${enable_languages}" = xyes;
2766 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2769 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2771 # First scan to see if an enabled language requires some other language.
2772 # We assume that a given config-lang.in will list all the language
2773 # front ends it requires, even if some are required indirectly.
2774 for lang in ${srcdir}/*/config-lang.in ..
2779 # The odd quoting in the next line works around
2780 # an apparent bug in bash 1.12 on linux.
2782 ${srcdir}/[*]/config-lang.in)
2785 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2786 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2787 for other in $this_lang_requires
2789 case ,${enable_languages}, in
2795 enable_languages="$enable_languages,$other"
2804 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2807 for lang in ${srcdir}/*/config-lang.in ..
2811 # The odd quoting in the next line works around
2812 # an apparent bug in bash 1.12 on linux.
2814 ${srcdir}/[*]/config-lang.in) ;;
2816 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2817 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2818 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2819 if test "x$lang_alias" = x
2821 echo "$lang doesn't set \$language." 1>&2
2824 case ${build_by_default},${enable_languages}, in
2825 *,$lang_alias,*) add_this_lang=yes ;;
2826 no,*) add_this_lang=no ;;
2827 *,all,*) add_this_lang=yes ;;
2828 *) add_this_lang=no ;;
2830 found_languages="${found_languages} ${lang_alias}"
2831 if test x"${add_this_lang}" = xyes; then
2833 ${srcdir}/ada/config-lang.in)
2834 if test x$have_gnat = xyes ; then
2835 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2839 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2849 for expected_language in ${expected_languages} ..
2851 if test "${expected_language}" != ..; then
2852 missing_language="${expected_language}"
2853 if test "${expected_language}" = "c" \
2854 || test "${expected_language}" = "all"; then
2857 for found_language in ${found_languages} ..
2859 if test "${found_language}" != ..; then
2860 if test "${expected_language}" = "${found_language}"; then
2865 if test "x${missing_language}" != x; then
2866 missing_languages="${missing_languages} ${missing_language}"
2871 if test "x$missing_languages" != x; then
2873 The following requested languages were not found:${missing_languages}
2874 The following languages were available: c${found_languages}])
2877 # Make gthr-default.h if we have a thread file.
2879 if test $thread_file != single; then
2880 rm -f gthr-default.h
2881 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2882 gthread_flags=-DHAVE_GTHR_DEFAULT
2884 AC_SUBST(gthread_flags)
2886 # Find out what GC implementation we want, or may, use.
2888 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2895 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2900 echo "Using $GGC for garbage collection."
2902 # Use the system's zlib library.
2904 zlibinc="-I\$(srcdir)/../zlib"
2905 AC_ARG_WITH(system-zlib,
2906 [ --with-system-zlib use installed libz],
2913 dnl Very limited version of automake's enable-maintainer-mode
2915 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2916 dnl maintainer-mode is disabled by default
2917 AC_ARG_ENABLE(maintainer-mode,
2918 [ --enable-maintainer-mode
2919 enable make rules and dependencies not useful
2920 (and sometimes confusing) to the casual installer],
2921 maintainer_mode=$enableval,
2924 AC_MSG_RESULT($maintainer_mode)
2926 if test "$maintainer_mode" = "yes"; then
2933 # Make empty files to contain the specs and options for each language.
2934 # Then add #include lines to for a compiler that has specs and/or options.
2940 for subdir in . $subdirs
2942 if test -f $srcdir/$subdir/lang.opt; then
2943 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2945 if test -f $srcdir/$subdir/lang-specs.h; then
2946 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2948 if test -f $srcdir/$subdir/lang-options.h; then
2949 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2951 if test -f $srcdir/$subdir/$subdir-tree.def; then
2952 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2956 # These (without "all_") are set in each config-lang.in.
2957 # `language' must be a single word so is spelled singularly.
2962 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2963 # List of language makefile fragments.
2965 # Files for gengtype
2966 all_gtfiles="$target_gtfiles"
2967 # Files for gengtype with language
2968 all_gtfiles_files_langs=
2969 all_gtfiles_files_files=
2971 # Add the language fragments.
2972 # Languages are added via two mechanisms. Some information must be
2973 # recorded in makefile variables, these are defined in config-lang.in.
2974 # We accumulate them and plug them into the main Makefile.
2975 # The other mechanism is a set of hooks for each of the main targets
2976 # like `clean', `install', etc.
2978 language_fragments="Make-lang"
2979 language_hooks="Make-hooks"
2981 for s in .. $subdirs
2991 . ${srcdir}/$s/config-lang.in
2992 if test "x$language" = x
2994 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2997 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2998 if test -f ${srcdir}/$s/Makefile.in
2999 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
3001 all_languages="$all_languages $language"
3002 if test "x$boot_language" = xyes
3004 all_boot_languages="$all_boot_languages $language"
3006 all_compilers="$all_compilers $compilers"
3007 all_stagestuff="$all_stagestuff $stagestuff"
3008 all_outputs="$all_outputs $outputs"
3009 all_gtfiles="$all_gtfiles $gtfiles"
3010 for f in .. $gtfiles
3014 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3015 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3021 # Pick up gtfiles for c
3024 . ${srcdir}/c-config-lang.in
3025 all_gtfiles="$all_gtfiles $gtfiles"
3026 for f in .. $gtfiles
3030 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3031 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3036 for language in .. $all_languages
3038 if test $language != ".."
3040 check_languages="$check_languages check-$language"
3044 # Since we can't use `::' targets, we link each language in
3045 # with a set of hooks, reached indirectly via lang.${target}.
3049 target_list="all.build all.cross start.encap rest.encap tags \
3050 info dvi generated-manpages \
3051 install-normal install-common install-info install-man \
3053 mostlyclean clean distclean extraclean maintainer-clean \
3054 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3055 for t in $target_list
3058 for lang in .. $all_languages
3060 if test $lang != ".."; then
3064 echo "lang.$t: $x" >> Make-hooks
3069 echo "dir ." > .gdbinit
3070 echo "dir ${srcdir}" >> .gdbinit
3071 if test x$gdb_needs_out_file_path = xyes
3073 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3075 if test "x$subdirs" != x; then
3078 echo "dir ${srcdir}/$s" >> .gdbinit
3081 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3083 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3084 # absolute path for gcc_tooldir based on inserting the number of up-directory
3085 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3086 # $(libsubdir)/@(unlibsubdir) based path.
3087 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3088 # make and thus we'd get different behavior depending on where we built the
3090 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3091 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3093 changequote(<<, >>)dnl
3094 # An explanation of the sed strings:
3095 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3096 # -e 's|/$||' match a trailing forward slash and eliminates it
3097 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3098 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3100 # (*) Note this pattern overwrites the first character of the string
3101 # with a forward slash if one is not already present. This is not a
3102 # problem because the exact names of the sub-directories concerned is
3103 # unimportant, just the number of them matters.
3105 # The practical upshot of these patterns is like this:
3107 # prefix exec_prefix result
3108 # ------ ----------- ------
3110 # /foo/ /foo/bar ../
3111 # /foo /foo/bar/ ../
3112 # /foo/ /foo/bar/ ../
3113 # /foo /foo/bar/ugg ../../
3116 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3117 changequote([, ])dnl
3119 AC_SUBST(gcc_tooldir)
3122 # Find a directory in which to install a shared libgcc.
3124 AC_ARG_ENABLE(version-specific-runtime-libs,
3125 [ --enable-version-specific-runtime-libs
3126 specify that runtime libraries should be
3127 installed in a compiler-specific directory])
3129 AC_ARG_WITH(slibdir,
3130 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3131 slibdir="$with_slibdir",
3132 if test "${enable_version_specific_runtime_libs+set}" = set; then
3133 slibdir='$(libsubdir)'
3134 elif test "$host" != "$target"; then
3135 slibdir='$(build_tooldir)/lib'
3141 objdir=`${PWDCMD-pwd}`
3144 # Process the language and host/target makefile fragments.
3145 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3147 # Substitute configuration variables
3150 AC_SUBST(all_boot_languages)
3151 AC_SUBST(all_compilers)
3152 AC_SUBST(all_gtfiles)
3153 AC_SUBST(all_gtfiles_files_langs)
3154 AC_SUBST(all_gtfiles_files_files)
3155 AC_SUBST(all_lang_makefiles)
3156 AC_SUBST(all_languages)
3157 AC_SUBST(all_stagestuff)
3158 AC_SUBST(build_exeext)
3159 AC_SUBST(build_install_headers_dir)
3160 AC_SUBST(build_xm_file_list)
3161 AC_SUBST(build_xm_file)
3162 AC_SUBST(build_xm_defines)
3163 AC_SUBST(check_languages)
3164 AC_SUBST(cc_set_by_configure)
3165 AC_SUBST(quoted_cc_set_by_configure)
3166 AC_SUBST(cpp_install_dir)
3167 AC_SUBST(dep_host_xmake_file)
3168 AC_SUBST(dep_tmake_file)
3169 AC_SUBST(extra_headers_list)
3170 AC_SUBST(extra_objs)
3171 AC_SUBST(extra_parts)
3172 AC_SUBST(extra_passes)
3173 AC_SUBST(extra_programs)
3174 AC_SUBST(float_h_file)
3175 AC_SUBST(gcc_config_arguments)
3176 AC_SUBST(gcc_gxx_include_dir)
3177 AC_SUBST(libstdcxx_incdir)
3178 AC_SUBST(gcc_version)
3179 AC_SUBST(gcc_version_full)
3180 AC_SUBST(gcc_version_trigger)
3181 AC_SUBST(host_exeext)
3182 AC_SUBST(host_extra_gcc_objs)
3183 AC_SUBST(host_xm_file_list)
3184 AC_SUBST(host_xm_file)
3185 AC_SUBST(host_xm_defines)
3186 AC_SUBST(out_host_hook_obj)
3188 AC_SUBST(lang_opt_files)
3189 AC_SUBST(lang_options_files)
3190 AC_SUBST(lang_specs_files)
3191 AC_SUBST(lang_tree_files)
3192 AC_SUBST(local_prefix)
3194 AC_SUBST(objc_boehm_gc)
3196 AC_SUBST(out_object_file)
3197 AC_SUBST(stage_prefix_set_by_configure)
3198 AC_SUBST(quoted_stage_prefix_set_by_configure)
3199 AC_SUBST(symbolic_link)
3200 AC_SUBST(thread_file)
3201 AC_SUBST(tm_file_list)
3203 AC_SUBST(tm_defines)
3204 AC_SUBST(tm_p_file_list)
3207 AC_SUBST(xm_defines)
3208 AC_SUBST(target_alias)
3209 AC_SUBST(c_target_objs)
3210 AC_SUBST(cxx_target_objs)
3211 AC_SUBST(target_cpu_default)
3213 AC_SUBST_FILE(target_overrides)
3214 AC_SUBST_FILE(host_overrides)
3215 AC_SUBST_FILE(language_fragments)
3216 AC_SUBST_FILE(language_hooks)
3218 # Echo that links are built
3219 if test x$host = x$target
3227 if test x$host != x$build
3229 str3=" on a $build system"
3232 if test "x$str2" != x || test "x$str3" != x
3237 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3239 if test "x$str2" != x || test "x$str3" != x
3241 echo " ${str2}${str3}." 1>&2
3244 # Configure the subdirectories
3245 # AC_CONFIG_SUBDIRS($subdirs)
3247 # Create the Makefile
3248 # and configure language subdirectories
3249 AC_OUTPUT($all_outputs,
3251 case x$CONFIG_HEADERS in
3252 xauto-host.h:config.in)
3255 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3256 # bootstrapping and the installation procedure can still use
3257 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3258 # FLAGS_TO_PASS has been modified to solve the problem there.
3259 # This is virtually a duplicate of what happens in configure.lang; we do
3260 # an extra check to make sure this only happens if ln -s can be used.
3261 if test "$symbolic_link" = "ln -s"; then
3262 for d in .. ${subdirs} fixinc ; do
3263 if test $d != ..; then
3264 STARTDIR=`${PWDCMD-pwd}`
3266 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3269 $symbolic_link ../$t $t 2>/dev/null
3277 symbolic_link='$symbolic_link'