# Process this file with autoconf to generate a configuration script.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
#This file is part of GCC.
[], [])
# Enable C extension for decimal float if target supports it.
-AC_ARG_ENABLE(decimal-float,
-[ --enable-decimal-float={no,yes,bid,dpd}
- enable decimal float extension to C. Selecting 'bid'
- or 'dpd' choses which decimal floating point format
- to use],
-[
- case $enable_decimal_float in
- yes | no | bid | dpd) ;;
- *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
-Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
- esac
-],
-[
- case $target in
- powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
- enable_decimal_float=yes
- ;;
- *)
- AC_MSG_WARN(decimal float is not supported for this target, ignored)
- enable_decimal_float=no
- ;;
- esac
-])
+GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
[Define to 1 to enable decimal float extension to C.])
-# x86's use BID format instead of DPD
-case x$enable_decimal_float in
- xyes)
- case $target in
- i?86*-*-linux* | x86_64*-*-linux*)
- enable_decimal_float=bid
- ;;
- *)
- enable_decimal_float=dpd
- ;;
- esac
- ;;
- xno)
- # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
- # dependency on libdecnumber.
- enable_decimal_float=dpd
- ;;
-esac
-AC_SUBST(enable_decimal_float)
+# Use default_decimal_float for dependency.
+enable_decimal_float=$default_decimal_float
bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
mips*-*-*)
case $host in
mips*-sgi-irix*)
- AC_MSG_WARN(fixed-point is not supported on IRIX, ignored)
+ AC_MSG_WARN([fixed-point is not supported on IRIX, ignored])
enable_fixed_point=no
;;
*)
esac
;;
*)
- AC_MSG_WARN(fixed-point is not supported for this target, ignored)
+ AC_MSG_WARN([fixed-point is not supported for this target, ignored])
enable_fixed_point=no
;;
esac
# NM
if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
&& test -d ../binutils ; then
- NM='$(objdir)/../binutils/nm-new'
+ NM='${objdir}/../binutils/nm-new'
else
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
fi
# AR
if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
&& test -d ../binutils ; then
- AR='$(objdir)/../binutils/ar'
+ AR='${objdir}/../binutils/ar'
else
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
fi
gettimeofday mbstowcs wcswidth mmap mincore setlocale \
gcc_UNLOCKED_FUNCS)
+save_CPPFLAGS="$CPPFLAGS"
+save_LIBS="$LIBS"
+LIBS="$LIBS $LIBELFLIBS"
+AC_CHECK_FUNCS(elf_getshdrstrndx,,
+ [AC_CHECK_FUNCS(elf_getshstrndx,
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
+#include <libelf.h>
+int main()
+{
+ return elf_getshstrndx (NULL, 0) == 0;
+}]])], AC_DEFINE(HAVE_ELF_GETSHSTRNDX_GABI, 1,
+ [Define if elf_getshstrndx has gABI conformant return values.]))])]
+ )
+LIBS="$save_LIBS"
+CPPFLAGS="$save_CPPFLAGS"
+
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
[ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
[], [])
+AC_ARG_ENABLE(leading-mingw64-underscores,
+ AS_HELP_STRING([--enable-leading-mingw64-underscores],
+ [Enable leading underscores on 64 bit mingw targets]),
+ [],[])
+AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
+ [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
+ [Define if we should use leading underscore on 64 bit mingw targets])])
+
AC_ARG_ENABLE(cld,
[ --enable-cld enable -mcld by default for 32bit x86], [],
[enable_cld=no])
+AC_ARG_ENABLE(frame-pointer,
+[ --enable-frame-pointer enable -fno-omit-frame-pointer by default for 32bit x86], [],
+[
+case $target_os in
+linux* | darwin[[8912]]*)
+ # Enable -fomit-frame-pointer by default for Linux and Darwin with
+ # DWARF2.
+ enable_frame_pointer=no
+ ;;
+*)
+ enable_frame_pointer=yes
+ ;;
+esac
+])
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[ --disable-win32-registry
out_object_file=`basename $out_file .c`.o
tm_file_list="options.h"
-tm_include_list="options.h"
+tm_include_list="options.h insn-constants.h"
for f in $tm_file; do
case $f in
./* )
AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
AC_DEFINE_UNQUOTED(PLUGIN_LD, "$PLUGIN_LD", [Specify plugin linker])
+# Check to see if we are using gold instead of ld
+AC_MSG_CHECKING(whether we are using gold)
+ld_is_gold=no
+if test x$gcc_cv_ld != x; then
+ if $gcc_cv_ld --version 2>/dev/null | sed 1q \
+ | grep "GNU gold" > /dev/null; then
+ ld_is_gold=yes
+ fi
+fi
+AC_MSG_RESULT($ld_is_gold)
+
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
AC_SUBST(ORIGINAL_LD_FOR_TARGET)
case "$ORIGINAL_LD_FOR_TARGET" in
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
[elf,2,13,0],,
[ .hidden foobar
-foobar:])
+foobar:],[
+# Solaris 9/x86 as incorrectly emits an alias for a hidden symbol with
+# STV_HIDDEN, so disable .hidden support if so.
+case "${target}" in
+ i?86-*-solaris2*)
+ if test x$gcc_cv_as != x && test x$gcc_cv_objdump != x; then
+ cat > conftest.s <<EOF
+.globl hidden
+ .hidden hidden
+hidden:
+.globl default
+ .set default,hidden
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_objdump -t conftest.o 2>/dev/null | \
+ grep '\.hidden default' > /dev/null; then
+ gcc_cv_as_hidden=no
+ else
+ gcc_cv_as_hidden=yes
+ fi
+ else
+ # Assume bug is present if objdump is missing.
+ gcc_cv_as_hidden=no
+ fi
+ ;;
+ *)
+ gcc_cv_as_hidden=yes
+ ;;
+esac])
changequote(,)dnl
if test $in_tree_ld != yes ; then
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
- if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ gcc_cv_ld_hidden=yes
+ elif 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]*\.\([0-9]*\)'`
+ else
+ case "${target}" in
+ *-*-solaris2*)
+ #
+ # Solaris 2 ld -V output looks like this for a regular version:
+ #
+ # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699
+ #
+ # but test versions add stuff at the end:
+ #
+ # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
+ #
+ ld_ver=`$gcc_cv_ld -V 2>&1`
+ if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
+ ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+ ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+ fi
+ ;;
+ esac
fi
fi
changequote([,])dnl
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
-[if test $in_tree_ld = yes ; then
+[[if test $in_tree_ld = yes ; then
gcc_cv_ld_hidden=no
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_hidden=yes
fi
else
-changequote(,)dnl
gcc_cv_ld_hidden=yes
if echo "$ld_ver" | grep GNU > /dev/null; then
if test 0"$ld_date" -lt 20020404; then
gcc_cv_ld_hidden=yes
;;
*-*-solaris2.9* | *-*-solaris2.1[0-9]*)
+ # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
+ # .symbolic was only added in Solaris 9 12/02.
gcc_cv_ld_hidden=yes
;;
*)
;;
esac
fi
-changequote([,])dnl
-fi])
+fi]])
libgcc_visibility=no
AC_SUBST(libgcc_visibility)
GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
.uleb128 1280
.sleb128 -1010
L2:],
- [# GAS versions before 2.11 do not support uleb128,
+[[# GAS versions before 2.11 do not support uleb128,
# despite appearing to.
# ??? There exists an elf-specific test that will crash
# the assembler. Perhaps it's better to figure out whether
# arbitrary sections are supported and try the test.
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
if echo "$as_ver" | grep GNU > /dev/null; then
-changequote(,)dnl
as_vers=`echo $as_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
as_major=`expr "$as_vers" : '\([0-9]*\)'`
as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
-changequote([,])dnl
if test $as_major -eq 2 && test $as_minor -lt 11
then :
else gcc_cv_as_leb128=yes
fi
- fi],
+ fi]],
[AC_DEFINE(HAVE_AS_LEB128, 1,
[Define if your assembler supports .sleb128 and .uleb128.])])
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=no
else
- gcc_cv_as_cfi_directive=yes
+ case "$target" in
+ i?86-*-solaris2.1[[0-9]]*)
+ # On Solaris/x86, make sure that GCC and gas agree on using
+ # read-only .eh_frame sections for 64-bit.
+ if $gcc_cv_as --64 -o conftest.o conftest.s > /dev/null 2>&1 && \
+ $gcc_cv_objdump -h conftest.o 2>/dev/null | \
+ sed -e /.eh_frame/!d -e N | \
+ grep READONLY > /dev/null; then
+ gcc_cv_as_cfi_directive=yes
+ else
+ gcc_cv_as_cfi_directive=no
+ fi
+ ;;
+ *)
+ gcc_cv_as_cfi_directive=yes
+ ;;
+ esac
fi
else
# no objdump, err on the side of caution
gcc_cv_as_cfi_directive=yes
;;
esac])
-if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
+if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
,,
[ .text
.cfi_startproc
.cfi_adjust_cfa_offset 64
- .skip 512, 0
+ .skip 75040, 0
.cfi_adjust_cfa_offset 128
.cfi_endproc],
-[
-changequote(,)dnl
-if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
- | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then
+[[
+if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
+ | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then
gcc_cv_as_cfi_advance_working=yes
fi
-changequote([,])dnl
-])
+]])
else
- # no readelf, err on the side of caution
+ # no objdump, err on the side of caution
gcc_cv_as_cfi_advance_working=no
fi
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
[ .text
.cfi_sections .debug_frame, .eh_frame
.cfi_startproc
- .cfi_endproc])
+ .cfi_endproc],
+[case $target_os in
+ win32 | pe | cygwin* | mingw32* | uwin*)
+ # Need to check that we generated the correct relocation for the
+ # .debug_frame section. This was fixed for binutils 2.21.
+ gcc_cv_as_cfi_sections_directive=no
+ if test "x$gcc_cv_objdump" != x; then
+ if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
+ grep secrel > /dev/null; then
+ gcc_cv_as_cfi_sections_directive=yes
+ fi
+ fi
+ ;;
+ *)
+ gcc_cv_as_cfi_sections_directive=yes
+ ;;
+esac])
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
[`if test $gcc_cv_as_cfi_sections_directive = yes;
then echo 1; else echo 0; fi`],
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
fi
-if test $in_tree_ld = yes ; then
+if test x"$ld_is_gold" = xyes; then
+ comdat_group=yes
+elif 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
+elif echo "$ld_ver" | grep GNU > /dev/null; then
comdat_group=yes
if test 0"$ld_date" -lt 20050308; then
if test -n "$ld_date"; then
fi
fi
else
- # assume linkers other than GNU ld don't support COMDAT group
- comdat_group=no
+changequote(,)dnl
+ case "${target}" in
+ *-*-solaris2.1[1-9]*)
+ # Sun ld has COMDAT group support since Solaris 9, but it doesn't
+ # interoperate with GNU as until Solaris 11 build 130, i.e. ld
+ # version 1.688.
+ #
+ # FIXME: Maybe need to refine later when COMDAT group support with
+ # Sun as is implemented.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 1688; then
+ comdat_group=yes
+ else
+ comdat_group=no
+ fi
+ ;;
+ *)
+ # Assume linkers other than GNU ld don't support COMDAT group.
+ comdat_group=no
+ ;;
+ esac
+changequote([,])dnl
fi
+# Allow overriding the automatic COMDAT group tests above.
+AC_ARG_ENABLE(comdat,
+ [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])],
+ [comdat_group="$enable_comdat"])
if test $comdat_group = no; then
gcc_cv_as_comdat_group=no
gcc_cv_as_comdat_group_percent=no
tls_first_minor=17
;;
i[34567]86-*-*)
- conftest_s='
- .section ".tdata","awT",@progbits
+ case "$target" in
+ i[34567]86-*-solaris2.*)
+ on_solaris=yes
+ tga_func=___tls_get_addr
+ ;;
+ *)
+ on_solaris=no
+ ;;
+ esac
+ if test x$on_solaris = xyes && test x$gas_flag = xno; then
+ conftest_s='
+ .section .tdata,"awt",@progbits'
+ tls_first_major=0
+ tls_first_minor=0
+changequote([,])dnl
+ AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
+[Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
+changequote(,)dnl
+ else
+ conftest_s='
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="--fatal-warnings"
+ fi
+ conftest_s="$conftest_s
foo: .long 25
.text
movl %gs:0, %eax
- leal foo@TLSGD(,%ebx,1), %eax
- leal foo@TLSLDM(%ebx), %eax
- leal foo@DTPOFF(%eax), %edx
- movl foo@GOTTPOFF(%ebx), %eax
- subl foo@GOTTPOFF(%ebx), %eax
- addl foo@GOTNTPOFF(%ebx), %eax
- movl foo@INDNTPOFF, %eax
- movl $foo@TPOFF, %eax
- subl $foo@TPOFF, %eax
- leal foo@NTPOFF(%ecx), %eax'
- tls_first_major=2
- tls_first_minor=14
- tls_as_opt=--fatal-warnings
- ;;
+ leal foo@tlsgd(,%ebx,1), %eax
+ leal foo@tlsldm(%ebx), %eax
+ leal foo@dtpoff(%eax), %edx
+ movl foo@gottpoff(%ebx), %eax
+ subl foo@gottpoff(%ebx), %eax
+ addl foo@gotntpoff(%ebx), %eax
+ movl foo@indntpoff, %eax
+ movl \$foo@tpoff, %eax
+ subl \$foo@tpoff, %eax
+ leal foo@ntpoff(%ecx), %eax"
+ ;;
x86_64-*-*)
conftest_s='
.section ".tdata","awT",@progbits
;;
sparc*-*-*)
case "$target" in
- sparc*-sun-solaris2.[56789]*)
- # TLS was introduced in the Solaris 9 4/04 release but
- # we do not enable it by default on Solaris 9 either.
- if test "x$enable_tls" = xyes ; then
- on_solaris=yes
- else
- enable_tls=no;
- fi
- ;;
sparc*-sun-solaris2.*)
on_solaris=yes
+ tga_func=__tls_get_addr
;;
*)
on_solaris=no
esac
if test x$on_solaris = xyes && test x$gas_flag = xno; then
conftest_s='
- .section ".tdata",#alloc,#write,#tls
-foo: .long 25
- .text
- sethi %tgd_hi22(foo), %o0
- add %o0, %tgd_lo10(foo), %o1
- add %l7, %o1, %o0, %tgd_add(foo)
- call __tls_get_addr, %tgd_call(foo)
- sethi %tldm_hi22(foo), %l1
- add %l1, %tldm_lo10(foo), %l2
- add %l7, %l2, %o0, %tldm_add(foo)
- call __tls_get_addr, %tldm_call(foo)
- sethi %tldo_hix22(foo), %l3
- xor %l3, %tldo_lox10(foo), %l4
- add %o0, %l4, %l5, %tldo_add(foo)
- sethi %tie_hi22(foo), %o3
- add %o3, %tie_lo10(foo), %o3
- ld [%l7 + %o3], %o2, %tie_ld(foo)
- add %g7, %o2, %o4, %tie_add(foo)
- sethi %tle_hix22(foo), %l1
- xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
+ .section ".tdata",#alloc,#write,#tls'
tls_first_major=0
tls_first_minor=0
else
conftest_s='
- .section ".tdata","awT",@progbits
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="-32 --fatal-warnings"
+ fi
+ conftest_s="$conftest_s
foo: .long 25
.text
sethi %tgd_hi22(foo), %o0
add %g7, %o2, %o4, %tie_add(foo)
sethi %tle_hix22(foo), %l1
xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
- tls_first_major=2
- tls_first_minor=14
- tls_as_opt="-32 --fatal-warnings"
- fi
+ ld [%g7 + %o5], %o1"
;;
xtensa*-*-*)
conftest_s='
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
[set_have_as_tls=yes])
fi
+case "$target" in
+ # TLS was introduced in the Solaris 9 FCS release and backported to
+ # Solaris 8 patches. Support for GNU-style TLS on x86 was only
+ # introduced in Solaris 9 4/04, replacing the earlier Sun style that Sun
+ # ld and GCC don't support any longer.
+ *-*-solaris2.*)
+ AC_MSG_CHECKING(linker and ld.so.1 TLS support)
+ ld_tls_support=no
+ # Check ld and ld.so.1 TLS support.
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Assume all interesting versions of GNU ld have TLS support.
+ # FIXME: still need ld.so.1 support, i.e. ld version checks below.
+ ld_tls_support=yes
+ else
+ case "$target" in
+ # Solaris 8/x86 ld has GNU style TLS support since version 1.280.
+ i?86-*-solaris2.8)
+ min_tls_ld_vers_minor=280
+ ;;
+ # Solaris 8/SPARC ld has TLS support since version 1.272.
+ sparc*-*-solaris2.8)
+ min_tls_ld_vers_minor=272
+ ;;
+ # Solaris 9/x86 ld has GNU style TLS support since version 1.374.
+ i?86-*-solaris2.9)
+ min_tls_ld_vers_minor=374
+ ;;
+ # Solaris 9/SPARC and Solaris 10+ ld have TLS support since FCS.
+ sparc*-*-solaris2.9 | *-*-solaris2.1[[0-9]]*)
+ min_tls_ld_vers_minor=343
+ ;;
+ esac
+ if test "$ls_vers_major" -gt 1 || \
+ test "$ld_vers_minor" -ge "$min_tls_ld_vers_minor"; then
+ ld_tls_support=yes
+ else
+ set_have_as_tls=no
+ fi
+ fi
+ AC_MSG_RESULT($ld_tls_support)
+
+ save_LIBS="$LIBS"
+ save_LDFLAGS="$LDFLAGS"
+ LIBS=
+ LDFLAGS=
+
+ AC_MSG_CHECKING(alternate thread library)
+ case "$target" in
+ # TLS support was backported to Solaris 8 patches, but only lives in
+ # the alternate thread library which became the default in Solaris 9.
+ # We want to always use that, irrespective of TLS support.
+ *-*-solaris2.8)
+ # Take multilib subdir into account. There's no spec to handle
+ # this. The 64 symlink exists since Solaris 8.
+ lwp_dir=/usr/lib/lwp
+ lwp_spec="-L$lwp_dir%{m64:/64} -R$lwp_dir%{m64:/64}"
+ LDFLAGS="-L$lwp_dir -R$lwp_dir"
+ ;;
+ *-*-solaris2*)
+ lwp_dir="none"
+ lwp_spec=""
+ ;;
+ esac
+ # Always define LIB_THREAD_LDFLAGS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_THREAD_LDFLAGS_SPEC, "$lwp_spec",
+ [Define to the linker flags to use for -pthread.])
+ AC_MSG_RESULT($lwp_dir)
+
+ AC_MSG_CHECKING(library containing $tga_func)
+ # Before Solaris 10, __tls_get_addr (SPARC/x64) resp. ___tls_get_addr
+ # (32-bit x86) only lived in libthread, so check for that. Keep
+ # set_have_as_tls if found, disable if not.
+ AC_SEARCH_LIBS([$tga_func], [thread],, [set_have_as_tls=no])
+ # Clear LIBS if we cannot support TLS.
+ if test $set_have_as_tls = no; then
+ LIBS=
+ fi
+ # Always define LIB_TLS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
+ [Define to the library containing __tls_get_addr/___tls_get_addr.])
+ AC_MSG_RESULT($LIBS)
+
+ LIBS="$save_LIBS"
+ LDFLAGS="$save_LDFLAGS"
+ ;;
+esac
if test $set_have_as_tls = yes ; then
AC_DEFINE(HAVE_AS_TLS, 1,
- [Define if your assembler supports thread-local storage.])
+ [Define if your assembler and linker support thread-local storage.])
fi
# Target-specific assembler checks.
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
[Define if your assembler supports -relax option.])])
+ gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs],
+ gcc_cv_as_sparc_gotdata_op,,
+ [-K PIC],
+[.text
+foo:
+ nop
+bar:
+ sethi %gdop_hix22(foo), %g1
+ xor %g1, %gdop_lox10(foo), %g1
+ ld [[%l7 + %g1]], %g2, %gdop(foo)],
+ [if test x$gcc_cv_ld != x \
+ && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+ if $gcc_cv_ld -v | grep GNU >/dev/null 2>&1; then
+ if test x$gcc_cv_objdump != x; then
+ if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
+ | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
+ gcc_cv_as_sparc_gotdata_op=no
+ else
+ gcc_cv_as_sparc_gotdata_op=yes
+ fi
+ fi
+ else
+ gcc_cv_as_sparc_gotdata_op=yes
+ fi
+ fi
+ rm -f conftest],
+ [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1,
+ [Define if your assembler and linker support GOTDATA_OP relocs.])])
+
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
gcc_cv_as_sparc_ua_pcrel,,
[-K PIC],
rm -f conftest],
[AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
[Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
+ # Test if the assembler supports the extended form of the .section
+ # directive that specifies section alignment. LTO support uses this,
+ # but normally only after installation, so we warn but don't fail the
+ # configure if LTO is enabled but the assembler does not support it.
+ gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
+ [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
+ if test x$gcc_cv_as_section_has_align != xyes; then
+ case ",$enable_languages," in
+ *,lto,*)
+ AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
+ ;;
+ esac
+ fi
;;
esac
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
[Define if your assembler supports the ffreep mnemonic.])])
+ gcc_GAS_CHECK_FEATURE([.quad directive],
+ gcc_cv_as_ix86_quad,,,
+ [.quad 0],,
+ [AC_DEFINE(HAVE_AS_IX86_QUAD, 1,
+ [Define if your assembler supports the .quad directive.])])
+
gcc_GAS_CHECK_FEATURE([sahf mnemonic],
gcc_cv_as_ix86_sahf,,,
- [sahf],,
+ [.code64
+ sahf],,
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
- [Define if your assembler supports the sahf mnemonic.])])
+ [Define if your assembler supports the sahf mnemonic in 64bit mode.])])
gcc_GAS_CHECK_FEATURE([swap suffix],
gcc_cv_as_ix86_swap,,,
[AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
[Define if your assembler supports the subtraction of symbols in different sections.])])
- # This one is used unconditionally by i386.[ch]; it is to be defined
+ # These two are used unconditionally by i386.[ch]; it is to be defined
# to 1 if the feature is present, 0 otherwise.
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
[`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
[Define true if the assembler supports '.long foo@GOTOFF'.])
+
+ gcc_GAS_CHECK_FEATURE([rep and lock prefix],
+ gcc_cv_as_ix86_rep_lock_prefix,,,
+ [rep movsl
+ lock addl %edi, (%eax,%esi)
+ lock orl $0, (%esp)],,
+ [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
+ [Define if the assembler supports 'rep <insn>, lock <insn>'.])])
+
;;
ia64*-*-*)
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
+ if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \
+ && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then
gcc_cv_as_ld_jalr_reloc=yes
fi
fi
[elf,2,19,52],,
[.type foo, @gnu_unique_object],,
# Also check for ld.so support, i.e. glibc 2.11 or higher.
- [if test x$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]]*\.\([[0-9]]*\)"`
+ [[if test x$host = x$build -a x$host = x$target &&
+ glibcver=`ldd --version 2>/dev/null | sed 's/.* //;q'`; then
+ glibcmajor=`expr "$glibcver" : "\([0-9]*\)"`
+ glibcminor=`expr "$glibcver" : "[2-9]*\.\([0-9]*\)"`
glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
if test "$glibcnum" -ge 2011 ; then
enable_gnu_unique_object=yes
fi
- 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.])
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
| grep "gc-sections option ignored" > /dev/null; then
gcc_cv_ld_eh_gc_sections=no
- elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
# If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
if test x$gcc_cv_as_comdat_group != xyes; then
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
| grep "gc-sections option ignored" > /dev/null; then
gcc_cv_ld_eh_gc_sections=no
- elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
fi
fi
AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
[Define if your PowerPC64 linker only needs function descriptor syms.])
fi
+
+ AC_CACHE_CHECK(linker large toc support,
+ gcc_cv_ld_large_toc,
+ [gcc_cv_ld_large_toc=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_large_toc=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
+ cat > conftest.s <<EOF
+ .section ".tbss","awT",@nobits
+ .align 3
+ie0: .space 8
+ .global _start
+ .text
+_start:
+ addis 9,13,ie0@got@tprel@ha
+ ld 9,ie0@got@tprel@l(9)
+EOF
+ if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+ gcc_cv_ld_large_toc=yes
+ fi
+ rm -f conftest conftest.o conftest.s
+ fi
+ ])
+ if test x"$gcc_cv_ld_large_toc" = xyes; then
+ AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
+ [Define if your PowerPC64 linker supports a large TOC.])
+ fi
;;
esac
fi
fi
+# In binutils 2.21, GNU ld gained support for new emulations fully
+# supporting the Solaris 2 ABI. Detect their presence in the linker used.
+AC_CACHE_CHECK(linker *_sol2 emulation support,
+ gcc_cv_ld_sol2_emulation,
+ [gcc_cv_ld_sol2_emulation=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 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ elif test x$gcc_cv_ld != x; then
+ if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \
+ grep _sol2 > /dev/null; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ fi])
+if test x"$gcc_cv_ld_sol2_emulation" = xyes; then
+ AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1,
+ [Define if your linker supports the *_sol2 emulations.])
+fi
+
AC_CACHE_CHECK(linker --sysroot support,
gcc_cv_ld_sysroot,
[gcc_cv_ld_sysroot=no
case "$target" in
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
- if test "x$with_sysroot" = x; then
+ if test "x$with_headers" != x; then
+ glibc_header_dir=$with_headers
+ elif test "x$with_sysroot" = x; then
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
elif test "x$with_build_sysroot" != "x"; then
glibc_header_dir="${with_build_sysroot}/usr/include"
else
glibc_header_dir=/usr/include
fi
- # glibc 2.4 and later provides __stack_chk_fail and
+ [# glibc 2.4 and later provides __stack_chk_fail and
# either __stack_chk_guard, or TLS access to stack guard canary.
if test -f $glibc_header_dir/features.h \
- && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
+ && $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
$glibc_header_dir/features.h > /dev/null; then
- if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
+ if $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
$glibc_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
- elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
+ elif $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+2' \
$glibc_header_dir/features.h > /dev/null \
- && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
+ && $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
$glibc_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
- elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
+ elif $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
$glibc_header_dir/features.h > /dev/null && \
test -f $glibc_header_dir/bits/uClibc_config.h && \
- $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
+ $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
$glibc_header_dir/bits/uClibc_config.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
fi
- fi
+ fi]
;;
*-*-gnu*)
# Avoid complicated tests (see
AC_ARG_WITH(long-double-128,
[ --with-long-double-128 Use 128-bit long double by default.],
gcc_cv_target_ldbl128="$with_long_double_128",
- [gcc_cv_target_ldbl128=no
+ [[gcc_cv_target_ldbl128=no
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
if test "x$with_sysroot" = x; then
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
else
glibc_header_dir=/usr/include
fi
-changequote(,)dnl
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
$glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
-changequote([,])dnl
- ])
+ ]])
;;
esac
if test x$gcc_cv_target_ldbl128 = xyes; then
all_outputs='Makefile gccbug'
# List of language makefile fragments.
all_lang_makefrags=
-# List of language subdirectory makefiles. Deprecated.
-all_lang_makefiles=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
fi
- if test -f ${srcdir}/$gcc_subdir/Makefile.in
- then all_lang_makefiles="$gcc_subdir/Makefile"
- fi
all_languages="$all_languages $language"
all_compilers="$all_compilers $compilers"
all_outputs="$all_outputs $outputs"
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
enable_lto=yes
AC_SUBST(enable_lto)
+ # LTO needs to speak the platform's object file format, and has a
+ # number of implementations of the required binary file access APIs.
+ # ELF is the most common, and default. We only link libelf if ELF
+ # is indeed the selected format.
+ LTO_BINARY_READER=${lto_binary_reader}
+ LTO_USE_LIBELF=-lelf
+ if test "x$lto_binary_reader" != "xlto-elf" ; then
+ LTO_USE_LIBELF=
+ fi
+ AC_SUBST(LTO_BINARY_READER)
+ AC_SUBST(LTO_USE_LIBELF)
;;
*) ;;
esac
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
AC_SUBST(all_lang_makefrags)
-AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
AC_SUBST(build_exeext)
AC_SUBST(TM_MULTILIB_CONFIG)
AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
AC_SUBST(extra_gcc_objs)
+AC_SUBST(user_headers_inc_next_pre)
+AC_SUBST(user_headers_inc_next_post)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
AC_SUBST(extra_parts)
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
+ case "${host}" in
+ *-*-darwin*)
+ export_sym_check="$gcc_cv_nm -g"
+ ;;
+ *)
+ export_sym_check="$gcc_cv_objdump -T"
+ ;;
+ esac
AC_MSG_CHECKING([for exported symbols])
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
: # No need to use a flag
else
AC_MSG_CHECKING([for -rdynamic])
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
+ plugin_rdynamic=yes
pluginlibs="-rdynamic"
else
+ plugin_rdynamic=no
enable_plugin=no
fi
+ AC_MSG_RESULT([$plugin_rdynamic])
fi
# Check -ldl
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ case "${host}" in
+ *-*-darwin*)
+ LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+ ;;
+ *)
+ LDFLAGS="$LDFLAGS -fPIC -shared"
+ ;;
+ esac
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
[extern int X;],[return X == 0;],
echo > cstamp-h ;;
esac
# Make sure all the subdirs exist.
-for d in $subdirs doc build
+for d in $subdirs doc build c-family
do
test -d $d || mkdir $d
done
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