Mercurial > hg > CbC > CbC_gcc
diff gcc/configure.ac @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | 855418dad1a3 |
| children | 326d9e06c2e3 b7f97abdc517 |
line wrap: on
line diff
--- a/gcc/configure.ac Sun Feb 07 18:28:00 2010 +0900 +++ b/gcc/configure.ac Fri Feb 12 23:39:51 2010 +0900 @@ -2,7 +2,7 @@ # Process this file with autoconf to generate a configuration script. # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, -# 2007, 2008 Free Software Foundation, Inc. +# 2007, 2008, 2009 Free Software Foundation, Inc. #This file is part of GCC. @@ -24,7 +24,7 @@ # Initialization and sanity checks # -------------------------------- -AC_PREREQ(2.59) +AC_PREREQ(2.64) AC_INIT AC_CONFIG_SRCDIR(tree.c) AC_CONFIG_HEADER(auto-host.h:config.in) @@ -276,6 +276,7 @@ # Find the native compiler AC_PROG_CC AM_PROG_CC_C_O +AC_PROG_CXX ACX_PROG_GNAT([-I"$srcdir"/ada]) # autoconf is lame and doesn't give us any substitution variable for this. @@ -310,6 +311,7 @@ AC_CHECK_SIZEOF(long) AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) +GCC_STDINT_TYPES # --------------------- # Warnings and checking @@ -323,24 +325,30 @@ # So, we only use -pedantic if we can disable those warnings. ACX_PROG_CC_WARNING_OPTS( - m4_quote(m4_do([-W -Wall -Wwrite-strings -Wstrict-prototypes ], - [-Wmissing-prototypes -Wcast-qual])), [loose_warn]) + m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn]) ACX_PROG_CC_WARNING_OPTS( - m4_quote(m4_do([-Wold-style-definition -Wc++-compat ], - [-Wmissing-format-attribute])), [strict_warn]) + m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])), + [c_loose_warn]) +ACX_PROG_CC_WARNING_OPTS( + m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn]) +ACX_PROG_CC_WARNING_OPTS( + m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) ACX_PROG_CC_WARNING_ALMOST_PEDANTIC( m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], [-Wno-overlength-strings])), [strict_warn]) ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn]) # The above macros do nothing if the compiler is not GCC. However, the -# Makefile has more goo to add other flags, so this variabl is used to -# enables warnings only for GCC. +# Makefile has more goo to add other flags, so these variables are used +# to enable warnings only for GCC. warn_cflags= +warn_cxxflags= if test "x$GCC" = "xyes"; then warn_cflags='$(GCC_WARN_CFLAGS)' + warn_cxxflags='$(GCC_WARN_CXXFLAGS)' fi AC_SUBST(warn_cflags) +AC_SUBST(warn_cxxflags) # Enable expensive internal checks is_release= @@ -573,6 +581,13 @@ # Miscenalleous configure options # ------------------------------- +# See if we are building gcc with C++. +AC_ARG_ENABLE(build-with-cxx, +[ --enable-build-with-cxx build with C++ compiler instead of C compiler], +ENABLE_BUILD_WITH_CXX=$enableval, +ENABLE_BUILD_WITH_CXX=no) +AC_SUBST(ENABLE_BUILD_WITH_CXX) + # With stabs AC_ARG_WITH(stabs, [ --with-stabs arrange to use stabs instead of host debug format], @@ -770,6 +785,14 @@ AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) AC_SUBST(CROSS_SYSTEM_HEADER_DIR) +AC_ARG_WITH(specs, + [AS_HELP_STRING([--with-specs=SPECS], + [add SPECS to driver command-line processing])], + [CONFIGURE_SPECS=$withval], + [CONFIGURE_SPECS=] +) +AC_SUBST(CONFIGURE_SPECS) + # Build with intermodule optimisations AC_ARG_ENABLE(intermodule, [ --enable-intermodule build the compiler in one step], @@ -805,10 +828,10 @@ esac], [enable_languages=c]) -# Used by documentation targets -AC_SUBST(datarootdir) -AC_SUBST(docdir) -AC_SUBST(htmldir) +AC_ARG_WITH(multilib-list, +[ --with-multilib-list Select multilibs (SH only)], +:, +with_multilib_list=default) # ------------------------- # Checks for other programs @@ -1022,26 +1045,6 @@ AC_CHECK_TYPE(ssize_t, int) AC_CHECK_TYPE(caddr_t, char *) -# Try to determine the array type of the second argument of getgroups -# for the target system (int or gid_t). -AC_TYPE_GETGROUPS -if test "${target}" = "${build}"; then - TARGET_GETGROUPS_T=$ac_cv_type_getgroups -else - case "${target}" in - # This condition may need some tweaking. It should include all - # targets where the array type of the second argument of getgroups - # is int and the type of gid_t is not equivalent to int. - *-*-sunos* | *-*-ultrix*) - TARGET_GETGROUPS_T=int - ;; - *) - TARGET_GETGROUPS_T=gid_t - ;; - esac -fi -AC_SUBST(TARGET_GETGROUPS_T) - gcc_AC_FUNC_MMAP_BLACKLIST case "${host}" in @@ -1510,6 +1513,32 @@ EOF changequote([,])dnl +changequote(,)dnl +gcc_BASEVER=`cat $srcdir/BASE-VER` +gcc_DEVPHASE=`cat $srcdir/DEV-PHASE` +gcc_DATESTAMP=`cat $srcdir/DATESTAMP` +if test -f $srcdir/REVISION ; then + gcc_REVISION=`cat $srcdir/REVISION` +else + gcc_REVISION="" +fi +cat > plugin-version.h <<EOF +#include "configargs.h" + +static char basever[] = "$gcc_BASEVER"; +static char datestamp[] = "$gcc_DATESTAMP"; +static char devphase[] = "$gcc_DEVPHASE"; +static char revision[] = "$gcc_REVISION"; + +/* FIXME plugins: We should make the version information more precise. + One way to do is to add a checksum. */ + +static struct plugin_gcc_version gcc_version = {basever, datestamp, + devphase, revision, + configuration_arguments}; +EOF +changequote([,])dnl + # Internationalization ZW_GNU_GETTEXT_SISTER_DIR @@ -1742,7 +1771,7 @@ # When building gcc with a cross-compiler, we need to adjust things so # that the generator programs are still built with the native compiler. -# Also, we cannot run fixincludes or fix-header. +# Also, we cannot run fixincludes. # These are the normal (build=host) settings: CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) @@ -1750,28 +1779,11 @@ BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS) STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) -# Possibly disable fixproto, on a per-target basis. -case ${use_fixproto} in - no) - STMP_FIXPROTO= - ;; - yes) - STMP_FIXPROTO=stmp-fixproto - ;; -esac -AC_SUBST(STMP_FIXPROTO) - # And these apply if build != host, or we are generating coverage data if test x$build != x$host || test "x$coverage_flags" != x then BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' - - if test "x$TARGET_SYSTEM_ROOT" = x; then - if test "x$STMP_FIXPROTO" != x; then - STMP_FIXPROTO=stmp-install-fixproto - fi - fi fi # Expand extra_headers to include complete path. @@ -1911,6 +1923,17 @@ AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) fi]) +ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld +PLUGIN_LD=`basename $gcc_cv_ld` +AC_ARG_WITH(plugin-ld, +[ --with-plugin-ld=[[ARG]] specify the plugin linker], +[if test x"$withval" != x; then + ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval" + PLUGIN_LD="$withval" + fi]) +AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET) +AC_DEFINE_UNQUOTED(PLUGIN_LD, "$PLUGIN_LD", [Specify plugin linker]) + ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld AC_SUBST(ORIGINAL_LD_FOR_TARGET) case "$ORIGINAL_LD_FOR_TARGET" in @@ -2096,6 +2119,20 @@ [ .hidden foobar foobar:]) +changequote(,)dnl +if test $in_tree_ld != yes ; then + ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` + if echo "$ld_ver" | grep GNU > /dev/null; then + ld_vers=`echo $ld_ver | sed -n \ + -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` + ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` + ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` + ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` + ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` + fi +fi +changequote([,])dnl + AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, [if test $in_tree_ld = yes ; then gcc_cv_ld_hidden=no @@ -2106,14 +2143,7 @@ else changequote(,)dnl gcc_cv_ld_hidden=yes - ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` if echo "$ld_ver" | grep GNU > /dev/null; then - ld_vers=`echo $ld_ver | sed -n \ - -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'` - ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` - ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` - ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` - ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` if test 0"$ld_date" -lt 20020404; then if test -n "$ld_date"; then # If there was date string, but was earlier than 2002-04-04, fail @@ -2401,7 +2431,13 @@ [elf,2,16,0], [--fatal-warnings], [.section .text,"axG",%progbits,.foo,comdat]) fi -if test $in_tree_ld != yes && test x"$ld_vers" != x; then +if test $in_tree_ld = yes ; then + comdat_group=no + if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ + && test $in_tree_ld_is_elf = yes; then + comdat_group=yes + fi +elif test x"$ld_vers" != x; then comdat_group=yes if test 0"$ld_date" -lt 20050308; then if test -n "$ld_date"; then @@ -2425,6 +2461,15 @@ [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], [Define 0/1 if your assembler and linker support COMDAT groups.]) +gcc_GAS_CHECK_FEATURE([line table discriminator support], + gcc_cv_as_discriminator, + [2,19,51],, +[ .text + .file 1 "conf.c" + .loc 1 1 0 discriminator 1],, +[AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1, + [Define if your assembler supports the .loc discriminator sub-directive.])]) + # Thread-local storage - the check is heavily parameterized. conftest_s= tls_first_major= @@ -2587,6 +2632,22 @@ tls_first_minor=16 tls_as_opt='-32 --fatal-warnings' ;; + m68k-*-*) + conftest_s=' + .section .tdata,"awT",@progbits +x: + .word 2 + .text +foo: + move.l x@TLSGD(%a5),%a0 + move.l x@TLSLDM(%a5),%a0 + move.l x@TLSLDO(%a5),%a0 + move.l x@TLSIE(%a5),%a0 + move.l x@TLSLE(%a5),%a0' + tls_first_major=2 + tls_first_minor=19 + tls_as_opt='--fatal-warnings' + ;; powerpc-*-*) conftest_s=' .section ".tdata","awT",@progbits @@ -2804,7 +2865,7 @@ AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) gcc_cv_ld_static_dynamic=no if test $in_tree_ld = yes ; then - if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then + if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then gcc_cv_ld_static_dynamic=yes fi elif test x$gcc_cv_ld != x; then @@ -2954,7 +3015,35 @@ i[34567]86-*-* | x86_64-*-*) changequote([,])dnl case $target_os in + cygwin*) + # Full C++ conformance when using a shared libstdc++-v3 requires some + # support from the Cygwin DLL, which in more recent versions exports + # wrappers to aid in interposing and redirecting operators new, delete, + # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we + # are configuring for a version of Cygwin that exports the wrappers. + if test x$host = x$target; then + AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no]) + else + # Can't check presence of libc functions during cross-compile, so + # we just have to assume we're building for an up-to-date target. + gcc_ac_cygwin_dll_wrappers=yes + fi + AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS, + [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`], + [Define if you want to generate code by default that assumes that the + Cygwin DLL exports wrappers to support libstdc++ function replacement.]) + esac + case $target_os in cygwin* | pe | mingw32*) + # Recent binutils allows the three-operand form of ".comm" on PE. This + # definition is used unconditionally to initialise the default state of + # the target option variable that governs usage of the feature. + gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align, + [2,19,52],,[.comm foo,1,32]) + AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM, + [`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`], + [Define if your assembler supports specifying the alignment + of objects allocated using the GAS .comm command.]) # Used for DWARF 2 in PE gcc_GAS_CHECK_FEATURE([.secrel32 relocs], gcc_cv_as_ix86_pe_secrel32, @@ -2974,10 +3063,16 @@ esac gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], - gcc_cv_as_ix86_filds_fists, - [2,9,0],, [filds mem; fists mem],, - [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1, - [Define if your assembler uses the new HImode fild and fist notation.])]) + gcc_cv_as_ix86_filds,,, + [filds mem; fists mem],, + [AC_DEFINE(HAVE_AS_IX86_FILDS, 1, + [Define if your assembler uses filds and fists mnemonics.])]) + + gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics], + gcc_cv_as_ix86_fildq,,, + [fildq mem; fistpq mem],, + [AC_DEFINE(HAVE_AS_IX86_FILDQ, 1, + [Define if your assembler uses fildq and fistq mnemonics.])]) gcc_GAS_CHECK_FEATURE([cmov syntax], gcc_cv_as_ix86_cmov_sun_syntax,,, @@ -2997,6 +3092,12 @@ [AC_DEFINE(HAVE_AS_IX86_SAHF, 1, [Define if your assembler supports the sahf mnemonic.])]) + gcc_GAS_CHECK_FEATURE([swap suffix], + gcc_cv_as_ix86_swap,,, + [movl.s %esp, %ebp],, + [AC_DEFINE(HAVE_AS_IX86_SWAP, 1, + [Define if your assembler supports the swap suffix.])]) + gcc_GAS_CHECK_FEATURE([different section symbol subtraction], gcc_cv_as_ix86_diff_sect_delta,,, [.section .rodata @@ -3102,7 +3203,7 @@ esac gcc_GAS_CHECK_FEATURE([move fp gpr support], - gcc_cv_as_powerpc_mfpgpr, [9,99,0],, + gcc_cv_as_powerpc_mfpgpr, [2,19,2],, [$conftest_s],, [AC_DEFINE(HAVE_AS_MFPGPR, 1, [Define if your assembler supports mffgpr and mftgpr.])]) @@ -3136,7 +3237,7 @@ esac gcc_GAS_CHECK_FEATURE([compare bytes support], - gcc_cv_as_powerpc_cmpb, [9,99,0], -a32, + gcc_cv_as_powerpc_cmpb, [2,19,2], -a32, [$conftest_s],, [AC_DEFINE(HAVE_AS_CMPB, 1, [Define if your assembler supports cmpb.])]) @@ -3151,7 +3252,7 @@ esac gcc_GAS_CHECK_FEATURE([decimal float support], - gcc_cv_as_powerpc_dfp, [9,99,0], -a32, + gcc_cv_as_powerpc_dfp, [2,19,2], -a32, [$conftest_s],, [AC_DEFINE(HAVE_AS_DFP, 1, [Define if your assembler supports DFP instructions.])]) @@ -3166,16 +3267,65 @@ esac gcc_GAS_CHECK_FEATURE([vector-scalar support], - gcc_cv_as_powerpc_vsx, [9,99,0], -a32, + gcc_cv_as_powerpc_vsx, [2,19,2], -a32, [$conftest_s],, [AC_DEFINE(HAVE_AS_VSX, 1, [Define if your assembler supports VSX instructions.])]) + case $target in + *-*-aix*) conftest_s=' .machine "pwr7" + .csect .text[[PR]] + popcntd 3,3';; + *) conftest_s=' .machine power7 + .text + popcntd 3,3';; + esac + + gcc_GAS_CHECK_FEATURE([popcntd support], + gcc_cv_as_powerpc_popcntd, [2,19,2], -a32, + [$conftest_s],, + [AC_DEFINE(HAVE_AS_POPCNTD, 1, + [Define if your assembler supports POPCNTD instructions.])]) + + case $target in + *-*-aix*) conftest_s=' .csect .text[[PR]] + lwsync';; + *) conftest_s=' .text + lwsync';; + esac + + gcc_GAS_CHECK_FEATURE([lwsync support], + gcc_cv_as_powerpc_lwsync, [2,19,2], -a32, + [$conftest_s],, + [AC_DEFINE(HAVE_AS_LWSYNC, 1, + [Define if your assembler supports LWSYNC instructions.])]) + + case $target in + *-*-aix*) conftest_s=' .machine "476" + .csect .text[[PR]] + dci 0';; + *) conftest_s=' .machine "476" + .text + dci 0';; + esac + + gcc_GAS_CHECK_FEATURE([data cache invalidate support], + gcc_cv_as_powerpc_dci, [9,99,0], -a32, + [$conftest_s],, + [AC_DEFINE(HAVE_AS_DCI, 1, + [Define if your assembler supports the DCI/ICI instructions.])]) + gcc_GAS_CHECK_FEATURE([.gnu_attribute support], gcc_cv_as_powerpc_gnu_attribute, [2,18,0],, [.gnu_attribute 4,1],, [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1, [Define if your assembler supports .gnu_attribute.])]) + + gcc_GAS_CHECK_FEATURE([tls marker support], + gcc_cv_as_powerpc_tls_markers, [2,20,0],, + [ bl __tls_get_addr(x@tlsgd)],, + [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1, + [Define if your assembler supports arg info for __tls_get_addr.])]) ;; mips*-*-*) @@ -3206,6 +3356,87 @@ .dtprelword x+0x8000],, [AC_DEFINE(HAVE_AS_DTPRELWORD, 1, [Define if your assembler supports .dtprelword.])]) + + AC_MSG_CHECKING(assembler and linker for explicit JALR relocation) + gcc_cv_as_ld_jalr_reloc=no + if test $gcc_cv_as_mips_explicit_relocs = yes; then + if test $in_tree_ld = yes ; then + if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \ + && test $in_tree_ld_is_elf = yes; then + gcc_cv_as_ld_jalr_reloc=yes + fi + elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then + echo ' .ent x' > conftest.s + echo 'x: ld $2,%got_disp(y)($3)' >> conftest.s + echo ' ld $25,%call16(y)($28)' >> conftest.s + echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s + echo '1: jalr $25' >> conftest.s + echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s + echo '1: jalr $25' >> conftest.s + echo ' .end x' >> conftest.s + if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \ + && $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then + if $gcc_cv_objdump -d conftest.so | grep -q jalr \ + && $gcc_cv_objdump -d conftest.so | grep -q "bal.*<x>"; then + gcc_cv_as_ld_jalr_reloc=yes + fi + fi + rm -f conftest.* + fi + fi + if test $gcc_cv_as_ld_jalr_reloc = yes; then + if test x$target_cpu_default = x; then + target_cpu_default=MASK_RELAX_PIC_CALLS + else + target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS" + fi + fi + AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc) + + AC_CACHE_CHECK([linker for .eh_frame personality relaxation], + [gcc_cv_ld_mips_personality_relaxation], + [gcc_cv_ld_mips_personality_relaxation=no + if test $in_tree_ld = yes ; then + if test "$gcc_cv_gld_major_version" -eq 2 \ + -a "$gcc_cv_gld_minor_version" -ge 21 \ + -o "$gcc_cv_gld_major_version" -gt 2; then + gcc_cv_ld_mips_personality_relaxation=yes + fi + elif test x$gcc_cv_as != x \ + -a x$gcc_cv_ld != x \ + -a x$gcc_cv_readelf != x ; then + cat > conftest.s <<EOF + .cfi_startproc + .cfi_personality 0x80,indirect_ptr + .ent test +test: + nop + .end test + .cfi_endproc + + .section .data,"aw",@progbits +indirect_ptr: + .dc.a personality +EOF + if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \ + && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then + if $gcc_cv_readelf -d conftest 2>&1 \ + | grep TEXTREL > /dev/null 2>&1; then + : + elif $gcc_cv_readelf --relocs conftest 2>&1 \ + | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then + : + else + gcc_cv_ld_mips_personality_relaxation=yes + fi + fi + fi + rm -f conftest.s conftest.o conftest]) + if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then + AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1, + [Define if your linker can relax absolute .eh_frame personality +pointers into PC-relative form.]) + fi ;; esac @@ -3308,6 +3539,32 @@ [AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1, [Define if your assembler supports .lcomm with an alignment field.])]) +AC_ARG_ENABLE(gnu-unique-object, + [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on + glibc systems], + [case $enable_gnu_unique_object in + yes | no) ;; + *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object. +Valid choices are 'yes' and 'no'.]) ;; + esac], + [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object, + [elf,2,19,52],, + [.type foo, @gnu_unique_object],, +# Also check for ld.so support, i.e. glibc 2.11 or higher. + [if test x$host = x$build -a x$host = x$target && + glibcver=`ldd --version 2>/dev/null`; then + glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"` + glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"` + glibcnum=`expr $glibcmajor \* 1000 + $glibcminor` + if test "$glibcnum" -ge 2011 ; then + enable_gnu_unique_object=yes + fi + fi])]) +if test x$enable_gnu_unique_object = xyes; then + AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1, + [Define if your assembler supports @gnu_unique_object.]) +fi + AC_CACHE_CHECK([assembler for tolerance to line number 0], [gcc_cv_as_line_zero], [gcc_cv_as_line_zero=no @@ -3515,6 +3772,41 @@ ;; esac +AC_CACHE_CHECK(linker --build-id support, + gcc_cv_ld_buildid, + [gcc_cv_ld_buildid=no + if test $in_tree_ld = yes ; then + if test "$gcc_cv_gld_major_version" -eq 2 -a \ + "$gcc_cv_gld_minor_version" -ge 18 -o \ + "$gcc_cv_gld_major_version" -gt 2 \ + && test $in_tree_ld_is_elf = yes; then + gcc_cv_ld_buildid=yes + fi + elif test x$gcc_cv_ld != x; then + if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then + gcc_cv_ld_buildid=yes + fi + fi]) +if test x"$gcc_cv_ld_buildid" = xyes; then + AC_DEFINE(HAVE_LD_BUILDID, 1, + [Define if your linker supports --build-id.]) +fi + +AC_ARG_ENABLE(linker-build-id, +[ --enable-linker-build-id + compiler will always pass --build-id to linker], +[], +enable_linker_build_id=no) + +if test x"$enable_linker_build_id" = xyes; then + if test x"$gcc_cv_ld_buildid" = xyes; then + AC_DEFINE(ENABLE_LD_BUILDID, 1, + [Define if gcc should always pass --build-id to linker.]) + else + AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored) + fi +fi + AC_CACHE_CHECK(linker --sysroot support, gcc_cv_ld_sysroot, [gcc_cv_ld_sysroot=no @@ -3586,7 +3878,7 @@ # simply assert that glibc does provide this, which is true for all # realistically usable GNU/Hurd configurations. gcc_cv_libc_provides_ssp=yes;; - *-*-darwin*) + *-*-darwin* | *-*-freebsd*) AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], [echo "no __stack_chk_fail on this target"]) ;; @@ -3657,6 +3949,13 @@ AC_SUBST(GGC) echo "Using $GGC for garbage collection." +# Libraries to use on the host. This will normally be set by the top +# level Makefile. Here we simply capture the value for our Makefile. +if test -z "${HOST_LIBS+set}"; then + HOST_LIBS= +fi +AC_SUBST(HOST_LIBS) + # Use the system's zlib library. zlibdir=-L../zlib zlibinc="-I\$(srcdir)/../zlib" @@ -3808,6 +4107,14 @@ all_compilers="$all_compilers $compilers" all_outputs="$all_outputs $outputs" all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles" + case ",$enable_languages," in + *,lto,*) + AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.]) + enable_lto=yes + AC_SUBST(enable_lto) + ;; + *) ;; + esac done # Pick up gtfiles for c @@ -3829,7 +4136,7 @@ target_list="all.cross start.encap rest.encap tags \ install-common install-man install-info install-pdf dvi pdf \ html uninstall info man srcextra srcman srcinfo \ - mostlyclean clean distclean maintainer-clean" + mostlyclean clean distclean maintainer-clean install-plugin" for t in $target_list do @@ -3884,24 +4191,6 @@ fi) AC_SUBST(slibdir) -AC_ARG_WITH(datarootdir, -[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]], -datarootdir="\${prefix}/$with_datarootdir", -datarootdir='$(prefix)/share') -AC_SUBST(datarootdir) - -AC_ARG_WITH(docdir, -[ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]], -docdir="\${prefix}/$with_docdir", -docdir='$(datarootdir)') -AC_SUBST(docdir) - -AC_ARG_WITH(htmldir, -[ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]], -htmldir="\${prefix}/$with_htmldir", -htmldir='$(docdir)') -AC_SUBST(htmldir) - # Substitute configuration variables AC_SUBST(subdirs) AC_SUBST(srcdir) @@ -3921,6 +4210,9 @@ AC_SUBST(cpp_install_dir) AC_SUBST(xmake_file) AC_SUBST(tmake_file) +AC_SUBST(TM_ENDIAN_CONFIG) +AC_SUBST(TM_MULTILIB_CONFIG) +AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG) AC_SUBST(extra_gcc_objs) AC_SUBST(extra_headers_list) AC_SUBST(extra_objs) @@ -3953,6 +4245,7 @@ AC_SUBST(xm_file_list) AC_SUBST(xm_include_list) AC_SUBST(xm_defines) +AC_SUBST(use_gcc_stdint) AC_SUBST(c_target_objs) AC_SUBST(cxx_target_objs) AC_SUBST(fortran_target_objs) @@ -3990,6 +4283,74 @@ AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.]) fi +AC_ARG_VAR(LIBELFLIBS,[How to link libelf]) +AC_ARG_VAR(LIBELFINC,[How to find libelf include files]) +if test "x${LIBELFLIBS}" != "x" ; then + AC_DEFINE(HAVE_libelf, 1, [Define if libelf is in use.]) +fi + +# Check for plugin support +AC_ARG_ENABLE(plugin, +[ --enable-plugin enable plugin support], +enable_plugin=$enableval, +enable_plugin=yes; default_plugin=yes) + +pluginlibs= +if test x"$enable_plugin" = x"yes"; then + # Check that the host supports -rdynamic and -ldl + have_rdynamic=no + have_dl=no + saved_LDFLAGS="$LDFLAGS" + saved_LIBS="$LIBS" + LIBS= + + # Check -rdynamic + LDFLAGS="$LDFLAGS -rdynamic" + AC_MSG_CHECKING([for -rdynamic]) + AC_TRY_LINK([],[return 0;], + [AC_MSG_RESULT([yes]); have_rdynamic=yes], + [AC_MSG_RESULT([no])]) + if test x"$have_rdynamic" = x"yes" ; then + pluginlibs="-rdynamic" + fi + + # Check -ldl + AC_SEARCH_LIBS([dlopen], [dl]) + if test x"$ac_cv_search_dlopen" = x"-ldl"; then + pluginlibs="$pluginlibs -ldl" + fi + + # Check that we can build shared objects with -fPIC -shared + LDFLAGS="$LDFLAGS -fPIC -shared" + AC_MSG_CHECKING([for -fPIC -shared]) + AC_TRY_LINK( + [extern int X;],[return X == 0;], + [AC_MSG_RESULT([yes]); have_pic_shared=yes], + [AC_MSG_RESULT([no]); have_pic_shared=no]) + if test x"$have_pic_shared" != x"yes" -o x"$ac_cv_search_dlopen" = x"no"; then + pluginlibs= + enable_plugin=no + fi + + # If plugin support had been requested but not available, fail. + if test x"$enable_plugin" = x"no" ; then + if test x"$default_plugin" != x"yes"; then + AC_MSG_ERROR([ +Building GCC with plugin support requires a host that supports +-fPIC, -shared, -ldl and -rdynamic.]) + fi + fi + + LDFLAGS="$saved_LDFLAGS" + LIBS="$saved_LIBS" +fi + +AC_SUBST(pluginlibs) +AC_SUBST(enable_plugin) +if test x"$enable_plugin" = x"yes"; then + AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.]) +fi + # Configure the subdirectories # AC_CONFIG_SUBDIRS($subdirs)