# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+# Copyright (C) 1997-2014 Free Software Foundation, Inc.
#This file is part of GCC.
[Define to enable the use of a default linker.])
fi
-gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi`
-AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.])
-
AC_MSG_CHECKING([whether a default linker was specified])
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test x"$gnu_ld_flag" = x"no"; then
[Define to enable the use of a default assembler.])
fi
-gnu_as=`if test x"$gas_flag" = x"yes"; then echo 1; else echo 0; fi`
-AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as, [Define if using GNU as.])
-
AC_MSG_CHECKING([whether a default assembler was specified])
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test x"$gas_flag" = x"no"; then
# Find the native compiler
AC_PROG_CC
-AM_PROG_CC_C_O
AC_PROG_CXX
ACX_PROG_GNAT([-I"$srcdir"/ada])
-# autoconf is lame and doesn't give us any substitution variable for this.
-if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
- NO_MINUS_C_MINUS_O=yes
-else
- OUTPUT_OPTION='-o $@'
-fi
-AC_SUBST(NO_MINUS_C_MINUS_O)
-AC_SUBST(OUTPUT_OPTION)
-
# Remove the -O2: for historical reasons, unless bootstrapping we prefer
# optimizations to be activated explicitly by the toplevel.
case "$CC" in
*/prev-gcc/xgcc*) ;;
- *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
+ *) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" `
+ CXXFLAGS=`echo "$CXXFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" ` ;;
esac
AC_SUBST(CFLAGS)
+AC_SUBST(CXXFLAGS)
# Determine PICFLAG for target gnatlib.
GCC_PICFLAG_FOR_TARGET
# * C++11 narrowing conversions in { }
# So, we only use -pedantic if we can disable those warnings.
+# In stage 1, disable -Wformat warnings from old GCCs about new % codes
+AC_ARG_ENABLE(build-format-warnings,
+ AS_HELP_STRING([--disable-build-format-warnings],[don't use -Wformat while building GCC]),
+ [],[enable_build_format_warnings=yes])
+AS_IF([test $enable_build_format_warnings = no],
+ [wf_opt=-Wno-format],[wf_opt=])
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual])), [loose_warn])
+ m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt])), [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
[c_loose_warn])
# Disable exceptions and RTTI if building with g++
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
+ m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])),
+ [noexception_flags])
# Enable expensive internal checks
is_release=
routines will also be enabled by this option.
])
TREEBROWSER=tree-browser.o
+ TREECHECKING=yes
fi
if test x$ac_types_checking != x ; then
AC_DEFINE(ENABLE_TYPES_CHECKING, 1,
])
fi
AC_SUBST(TREEBROWSER)
+AC_SUBST(TREECHECKING)
if test x$ac_rtl_checking != x ; then
AC_DEFINE(ENABLE_RTL_CHECKING, 1,
[Define if you want all operations on RTL (the basic data structure
[AS_HELP_STRING([--enable-gather-detailed-mem-stats],
[enable detailed memory allocation stats gathering])], [],
[enable_gather_detailed_mem_stats=no])
-if test x$enable_gather_detailed_mem_stats = xyes ; then
- AC_DEFINE(GATHER_STATISTICS, 1,
- [Define to enable detailed memory allocation stats gathering.])
-fi
+gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats,
+[Define to enable detailed memory allocation stats gathering.])
# -------------------------------
# Miscenalleous configure options
# -------------------------------
-# See if we are building gcc with C++.
-AC_ARG_ENABLE(build-with-cxx,
-[AS_HELP_STRING([--enable-build-with-cxx],
- [build with C++ compiler instead of C compiler])],
-ENABLE_BUILD_WITH_CXX=$enableval,
-ENABLE_BUILD_WITH_CXX=no)
-AC_SUBST(ENABLE_BUILD_WITH_CXX)
-if test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
- AC_DEFINE(ENABLE_BUILD_WITH_CXX, 1,
- [Define if building with C++.])
-fi
-
# With stabs
AC_ARG_WITH(stabs,
[AS_HELP_STRING([--with-stabs],
[], [enable_multilib=yes])
AC_SUBST(enable_multilib)
+# Determine whether or not multiarch is enabled.
+AC_ARG_ENABLE(multiarch,
+[AS_HELP_STRING([--enable-multiarch],
+ [enable support for multiarch paths])],
+[case "${enableval}" in
+yes|no|auto) enable_multiarch=$enableval;;
+*) AC_MSG_ERROR(bad value ${enableval} given for --enable-multiarch option) ;;
+esac], [enable_multiarch=auto])
+if test x${enable_multiarch} = xauto; then
+ if test x${with_native_system_header_dir} != x; then
+ ma_msg_suffix=", disabled auto check (configured with --native-system-header-dir)"
+ enable_multiarch=no
+ fi
+ if test x$host != x$target && test "x$with_sysroot" = x; then
+ ma_msg_suffix=", disabled auto check (cross build configured without --with-sysroot)"
+ enable_multiarch=no
+ fi
+fi
+AC_MSG_CHECKING(for multiarch configuration)
+AC_SUBST(enable_multiarch)
+AC_MSG_RESULT($enable_multiarch$ma_msg_suffix)
+
+# needed for setting the multiarch name for soft-float/hard-float ABIs
+AC_SUBST(with_cpu)
+AC_SUBST(with_float)
+
# Enable __cxa_atexit for C++.
AC_ARG_ENABLE(__cxa_atexit,
[AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
;;
mips*-*-*)
- case $host in
- mips*-sgi-irix*)
- AC_MSG_WARN([fixed-point is not supported on IRIX, ignored])
- enable_fixed_point=no
- ;;
- *)
- enable_fixed_point=yes
- ;;
- esac
+ enable_fixed_point=yes
;;
*)
AC_MSG_WARN([fixed-point is not supported for this target, ignored])
[SYSROOT_CFLAGS_FOR_TARGET=])
AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
+if test "x$prefix" = xNONE; then
+ test_prefix=/usr/local
+else
+ test_prefix=$prefix
+fi
+if test "x$exec_prefix" = xNONE; then
+ test_exec_prefix=$test_prefix
+else
+ test_exec_prefix=$exec_prefix
+fi
+
AC_ARG_WITH(sysroot,
[AS_HELP_STRING([[--with-sysroot[=DIR]]],
[search for usr/lib, usr/include, et al, within DIR])],
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
- if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
- else
- test_prefix=$prefix
- fi
- if test "x$exec_prefix" = xNONE; then
- test_exec_prefix=$test_prefix
- else
- test_exec_prefix=$exec_prefix
- fi
case ${TARGET_SYSTEM_ROOT} in
"${test_prefix}"|"${test_prefix}/"*|\
"${test_exec_prefix}"|"${test_exec_prefix}/"*|\
[enable_languages=c])
AC_ARG_WITH(multilib-list,
-[AS_HELP_STRING([--with-multilib-list], [select multilibs (SH and x86-64 only)])],
+[AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])],
:,
with_multilib_list=default)
AC_HEADER_TIME
ACX_HEADER_STRING
AC_HEADER_SYS_WAIT
+AC_HEADER_TIOCGWINSZ
AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
sys/resource.h sys/param.h sys/times.h sys/stat.h \
AC_LANG_POP(C++)
+# --------
+# Dependency checking.
+# --------
+
+AC_LANG_PUSH(C++)
+ZW_CREATE_DEPDIR
+AC_CONFIG_COMMANDS([gccdepdir],[
+ ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR
+ for lang in $subdirs c-family common
+ do
+ ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR
+ done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR])
+
+ZW_PROG_COMPILER_DEPENDENCIES([CXX])
+AC_LANG_POP(C++)
+
# --------
# UNSORTED
# --------
AC_CHECK_TYPE(ssize_t, int)
AC_CHECK_TYPE(caddr_t, char *)
-gcc_AC_FUNC_MMAP_BLACKLIST
+GCC_AC_FUNC_MMAP_BLACKLIST
case "${host}" in
*-*-*vms*)
# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
# iconv() prototype.
-AS_IF([test "$ENABLE_BUILD_WITH_CXX" = "yes"],
- [AC_LANG_PUSH([C++])
- AM_ICONV
- AC_LANG_POP([C++])],
- [AM_ICONV])
+AC_LANG_PUSH([C++])
+AM_ICONV
+AC_LANG_POP([C++])
# Until we have in-tree GNU iconv:
LIBICONV_DEP=
# We will need to find libiberty.h and ansidecl.h
saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
+CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
saved_CXXFLAGS="$CXXFLAGS"
-CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include"
+CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
strsignal strstr stpcpy strverscmp \
errno snprintf vsnprintf vasprintf malloc realloc calloc \
- free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
+ free basename getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[
#include "ansidecl.h"
#include "system.h"])
# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which hides the madvise()
# prototype.
-AS_IF([test "$ENABLE_BUILD_WITH_CXX" = "yes"],
- [AC_LANG_PUSH([C++])
- gcc_AC_CHECK_DECLS(madvise, , ,[
- #include "ansidecl.h"
- #include "system.h"
- ])
- AC_LANG_POP([C++])],
- [gcc_AC_CHECK_DECLS(madvise, , ,[
- #include "ansidecl.h"
- #include "system.h"
- ])
+AC_LANG_PUSH([C++])
+gcc_AC_CHECK_DECLS(madvise, , ,[
+ #include "ansidecl.h"
+ #include "system.h"
])
+AC_LANG_POP([C++])
# More time-related stuff.
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
[Define if <time.h> defines clock_t.])
fi
+# Check if F_SETLKW is supported by fcntl.
+AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <fcntl.h>]], [[
+struct flock fl;
+fl.l_whence = 0;
+fl.l_start = 0;
+fl.l_len = 0;
+fl.l_pid = 0;
+return fcntl (1, F_SETLKW, &fl);]])],
+[ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])])
+if test $ac_cv_f_setlkw = yes; then
+ AC_DEFINE(HOST_HAS_F_SETLKW, 1,
+ [Define if F_SETLKW supported by fcntl.])
+fi
+
# Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
CFLAGS="$saved_CFLAGS"
CXXFLAGS="$saved_CXXFLAGS"
force_sjlj_exceptions=yes
enableval=yes
;;
+ lm32*-*-*)
+ force_sjlj_exceptions=yes
+ enableval=yes
+ ;;
*)
force_sjlj_exceptions=no
;;
efficiently supported by the host hardware.])
fi
+gnu_ld_bool=`if test x"$gnu_ld" = x"yes"; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld_bool, [Define to 1 if using GNU ld.])
+
+gnu_as_bool=`if test x"$gas" = x"yes"; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(HAVE_GNU_AS, $gnu_as_bool, [Define to 1 if using GNU as.])
+
count=a
for f in $host_xm_file; do
count=${count}x
*-*-mingw32*)
use_cxa_atexit=yes
;;
+ powerpc-ibm-aix*)
+ use_cxa_atexit=yes
+ ;;
*)
AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
[echo "__cxa_atexit can't be enabled on this target"])
/* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
*) realsrcdir=../${srcdir};;
esac
- saved_CFLAGS="${CFLAGS}"
+ # Clearing GMPINC is necessary to prevent host headers being
+ # used by the build compiler. Defining GENERATOR_FILE stops
+ # system.h from including gmp.h.
CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
- LDFLAGS="${LDFLAGS_FOR_BUILD}" \
+ CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \
+ LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \
+ GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
${realsrcdir}/configure \
--enable-languages=${enable_languages-all} \
--target=$target_alias --host=$build_alias --build=$build_alias
- CFLAGS="${saved_CFLAGS}"
# We just finished tests for the build machine, so rename
# the file auto-build.h in the gcc directory.
# These are the normal (build=host) settings:
CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
+CXX_FOR_BUILD='$(CXX)' AC_SUBST(CXX_FOR_BUILD)
BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
+BUILD_CXXFLAGS='$(ALL_CXXFLAGS)' AC_SUBST(BUILD_CXXFLAGS)
BUILD_LDFLAGS='$(LDFLAGS)' AC_SUBST(BUILD_LDFLAGS)
STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
if test x$build != x$host || test "x$coverage_flags" != x
then
BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
+ BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)'
BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
fi
in_tree_gas=no
fi
+default_ld=
+AC_ARG_ENABLE(ld,
+[[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]],
+[case "${enableval}" in
+ no)
+ default_ld=ld.gold
+ ;;
+ esac])
+
+AC_ARG_ENABLE(gold,
+[[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]],
+[case "${enableval}" in
+ default)
+ install_gold_as_default=yes
+ ;;
+ yes)
+ if test x${default_ld} != x; then
+ install_gold_as_default=yes
+ fi
+ ;;
+ no)
+ ;;
+ *)
+ AC_MSG_ERROR([invalid --enable-gold argument])
+ ;;
+ esac],
+[install_gold_as_default=no])
+
# Identify the linker which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the linker
# which will be driven by the driver program.
gcc_cv_gld_major_version=
gcc_cv_gld_minor_version=
gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
+gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold
gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
AS_VAR_SET_IF(gcc_cv_ld,, [
if test -x "$DEFAULT_LINKER"; then
gcc_cv_ld="$DEFAULT_LINKER"
+elif test $install_gold_as_default = yes \
+ && test -f $gcc_cv_ld_gold_srcdir/configure.ac \
+ && test -f ../gold/Makefile \
+ && test x$build = x$host; then
+ gcc_cv_ld=../gold/ld-new$build_exeext
elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
&& test -f ../ld/Makefile \
&& test x$build = x$host; then
fi])
ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
-PLUGIN_LD=`basename $gcc_cv_ld`
+PLUGIN_LD_SUFFIX=`basename $gcc_cv_ld | sed -e "s,$target_alias-,,"`
+# if the PLUGIN_LD is set ld-new, just have it as ld
+# as that is the installed named.
+if test x$PLUGIN_LD_SUFFIX = xld-new \
+ || test x$PLUGIN_LD_SUFFIX = xcollect-ld ; then
+ PLUGIN_LD_SUFFIX=ld
+fi
AC_ARG_WITH(plugin-ld,
[AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])],
[if test x"$withval" != x; then
ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
- PLUGIN_LD="$withval"
+ PLUGIN_LD_SUFFIX=`echo $withval | sed -e "s,$target_alias-,,"`
fi])
AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
-AC_DEFINE_UNQUOTED(PLUGIN_LD, "$PLUGIN_LD", [Specify plugin linker])
+AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$PLUGIN_LD_SUFFIX", [Specify plugin linker])
# Check to see if we are using gold instead of ld
AC_MSG_CHECKING(whether we are using gold)
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
do
changequote(,)dnl
- gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
+ gcc_cv_gld_version=`sed -n -e 's/^[ ]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
if test x$gcc_cv_gld_version != x; then
break
fi
done
+ case $gcc_cv_gld_version in
+ VERSION=[0-9]*) ;;
+changequote([,])dnl
+ *) AC_MSG_ERROR([[cannot find version of in-tree linker]]) ;;
+changequote(,)dnl
+ esac
gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
changequote([,])dnl
+ ORIGINAL_LD_BFD_FOR_TARGET=../ld/ld-new$build_exeext
+ ORIGINAL_LD_GOLD_FOR_TARGET=../gold/ld-new$build_exeext
else
AC_MSG_RESULT($gcc_cv_ld)
in_tree_ld=no
+ gcc_cvs_ld_program=`dirname $gcc_cv_ld`/`basename $gcc_cv_ld $host_exeext`
+ ORIGINAL_LD_BFD_FOR_TARGET=${gcc_cvs_ld_program}.bfd$host_exeext
+ ORIGINAL_LD_GOLD_FOR_TARGET=${gcc_cvs_ld_program}.gold$host_exeext
fi
+AC_SUBST(ORIGINAL_LD_BFD_FOR_TARGET)
+AC_SUBST(ORIGINAL_LD_GOLD_FOR_TARGET)
+
# Figure out what nm we will be using.
gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
AS_VAR_SET_IF(gcc_cv_nm,, [
Valid choices are 'yes' and 'no'.]) ;;
esac],
[enable_gnu_indirect_function="$default_gnu_indirect_function"])
-if test x$enable_gnu_indirect_function = xyes; then
- AC_DEFINE(HAVE_GNU_INDIRECT_FUNCTION, 1,
- [Define if your system supports gnu indirect functions.])
-fi
+
+gif=`if test x$enable_gnu_indirect_function = xyes; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(HAVE_GNU_INDIRECT_FUNCTION, $gif,
+[Define if your system supports gnu indirect functions.])
+
changequote(,)dnl
if test $in_tree_ld != yes ; then
if test x"$ld_is_gold" = xyes; then
:
elif echo "$ld_ver" | grep GNU > /dev/null; then
+ case "${target}" in
+ mmix-knuth-mmixware)
+ # The linker emits by default mmo, not ELF, so "no" is appropriate.
+ gcc_cv_ld_hidden=no
+ ;;
+ esac
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
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
- *-*-solaris2.8*)
- # .hidden support was backported to Solaris 8, starting with ld
- # version 1.276.
- if test "$ld_vers_minor" -ge 276; then
- gcc_cv_ld_hidden=yes
- else
- gcc_cv_ld_hidden=no
- fi
- ;;
*-*-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.
if test $gcc_cv_as_comdat_group_percent = yes; then
gcc_cv_as_comdat_group_group=no
else
+ if test -z "${gcc_cv_as_comdat_group_group+set}"; then
+ gcc_cv_as_comdat_group_group=no
+ fi
case "${target}" in
# Sun as uses a completely different syntax.
*-*-solaris2*)
.section .tdata,"awt",@progbits'
tls_first_major=0
tls_first_minor=0
+ tls_section_flag=t
changequote([,])dnl
AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
[Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
.section ".tdata","awT",@progbits'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt="--fatal-warnings"
fi
conftest_s="$conftest_s
movq $foo@TPOFF, %rax'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt=--fatal-warnings
;;
ia64-*-*)
tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
+ microblaze*-*-*)
+ conftest_s='
+ .section .tdata,"awT",@progbits
+x:
+ .word 2
+ .text
+ addik r5,r20,x@TLSGD
+ addik r5,r20,x@TLSLDM'
+ tls_first_major=2
+ tls_first_minor=20
+ tls_as_opt='--fatal-warnings'
+ ;;
mips*-*-*)
conftest_s='
.section .tdata,"awT",@progbits
tls_first_minor=19
tls_as_opt='--fatal-warnings'
;;
- powerpc-*-*)
+ nios2-*-*)
+ conftest_s='
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=23
+ tls_as_opt="--fatal-warnings"
+ ;;
+ aarch64*-*-*)
conftest_s='
- .section ".tdata","awT",@progbits
- .align 2
-ld0: .space 4
-ld1: .space 4
-x1: .space 4
-x2: .space 4
-x3: .space 4
+ .section ".tdata","awT",%progbits
+foo: .long 25
.text
- addi 3,31,ld0@got@tlsgd
- bl __tls_get_addr
- addi 3,31,x1@got@tlsld
- bl __tls_get_addr
- addi 9,3,x1@dtprel
- addis 9,3,x2@dtprel@ha
- addi 9,9,x2@dtprel@l
- lwz 9,x3@got@tprel(31)
- add 9,9,x@tls
- addi 9,2,x1@tprel
- addis 9,2,x2@tprel@ha
- addi 9,9,x2@tprel@l'
+ adrp x0, :tlsgd:x
+ add x0, x0, #:tlsgd_lo12:x
+ bl __tls_get_addr
+ nop'
tls_first_major=2
- tls_first_minor=14
- tls_as_opt="-a32 --fatal-warnings"
+ tls_first_minor=20
+ tls_as_opt='--fatal-warnings'
+ ;;
+ powerpc-ibm-aix*)
+ conftest_s='
+ .extern __get_tpointer
+ .toc
+LC..1:
+ .tc a[TC],a[TL]@le
+ .csect .text[PR]
+.tlstest:
+ lwz 9,LC..1(2)
+ bla __get_tpointer
+ lwzx 3,9,3
+ .globl a
+ .csect a[TL],4
+a:
+ .space 4'
+ tls_first_major=0
+ tls_first_minor=0
;;
- powerpc64-*-*)
+ powerpc64*-*-*)
conftest_s='
.section ".tdata","awT",@progbits
.align 3
tls_first_minor=14
tls_as_opt="-a64 --fatal-warnings"
;;
+ powerpc*-*-*)
+ conftest_s='
+ .section ".tdata","awT",@progbits
+ .align 2
+ld0: .space 4
+ld1: .space 4
+x1: .space 4
+x2: .space 4
+x3: .space 4
+ .text
+ addi 3,31,ld0@got@tlsgd
+ bl __tls_get_addr
+ addi 3,31,x1@got@tlsld
+ bl __tls_get_addr
+ addi 9,3,x1@dtprel
+ addis 9,3,x2@dtprel@ha
+ addi 9,9,x2@dtprel@l
+ lwz 9,x3@got@tprel(31)
+ add 9,9,x@tls
+ addi 9,2,x1@tprel
+ addis 9,2,x2@tprel@ha
+ addi 9,9,x2@tprel@l'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="-a32 --fatal-warnings"
+ ;;
s390-*-*)
conftest_s='
.section ".tdata","awT",@progbits
[set_have_as_tls=yes])
fi
case "$target" in
- *-*-irix6*)
- # IRIX 6.5 rld and libc.so lack TLS support, so even if gas and gld
- # with TLS support are in use, native TLS cannot work.
- set_have_as_tls=no
- ;;
- *-*-osf*)
- # Tru64 UNIX loader and libc.so lack TLS support, so even if gas and
- # gld with TLS support are in use, native TLS cannot work.
- set_have_as_tls=no
- ;;
- # 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.
+ # TLS was introduced in the Solaris 9 FCS release. 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
ld_tls_support=yes
else
case "$target" in
- # Solaris 8/x86 ld has GNU style TLS support since version 1.280.
- i?86-*-solaris2.8)
- min_tls_ld_vers_minor=280
- ;;
- # Solaris 8/SPARC ld has TLS support since version 1.272.
- sparc*-*-solaris2.8)
- min_tls_ld_vers_minor=272
- ;;
# Solaris 9/x86 ld has GNU style TLS support since version 1.374.
i?86-*-solaris2.9)
min_tls_ld_vers_minor=374
LIBS=
LDFLAGS=
- AC_MSG_CHECKING(alternate thread library)
- case "$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])
+ ld_tls_libs="$LIBS"
# Clear LIBS if we cannot support TLS.
if test $set_have_as_tls = no; then
LIBS=
fi
- # Even without TLS support on Solaris 8, explicitly link with libthread
- # to guarantee that the alternate thread library is used.
- case "$target" in
- *-*-solaris2.8)
- LIBS=-lthread
- ;;
- esac
# Always define LIB_TLS_SPEC, even without TLS support.
AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
[Define to the library containing __tls_get_addr/___tls_get_addr.])
gcc_cv_ld_static_dynamic=yes
else
case "$target" in
- # Tru64 UNIX support -noso/-so_archive instead of -Bstatic/-Bdynamic.
- alpha*-dec-osf*)
- gcc_cv_ld_static_dynamic=yes
- gcc_cv_ld_static_option="-noso"
- gcc_cv_ld_dynamic_option="-so_archive"
- ;;
+ # AIX ld uses -b flags
+ *-*-aix4.[[23]]* | *-*-aix[[5-9]]*)
+ gcc_cv_ld_static_dynamic=yes
+ gcc_cv_ld_static_option="-bstatic"
+ gcc_cv_ld_dynamic_option="-bdynamic"
+ ;;
# HP-UX ld uses -a flags to select between shared and archive.
*-*-hpux*)
if test x"$gnu_ld" = xno; then
gcc_cv_ld_dynamic_option="-adefault"
fi
;;
- # IRIX 6 ld supports -Bstatic/-Bdynamic.
- mips-sgi-irix6*)
- gcc_cv_ld_static_dynamic=yes
- ;;
# Solaris 2 ld always supports -Bstatic/-Bdynamic.
*-*-solaris2*)
gcc_cv_ld_static_dynamic=yes
AC_MSG_RESULT($gcc_cv_lto_plugin)
case "$target" in
+ aarch64*-*-*)
+ gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,,
+ [-mabi=lp64], [.text],,,)
+ if test x$gcc_cv_as_aarch64_mabi = xyes; then
+ AC_DEFINE(HAVE_AS_MABI_OPTION, 1,
+ [Define if your assembler supports the -mabi option.])
+ else
+ if test x$with_abi = xilp32; then
+ AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\
+ Upgrade the Assembler.])
+ fi
+ if test x"$with_multilib_list" = xdefault; then
+ TM_MULTILIB_CONFIG=lp64
+ else
+ aarch64_multilibs=`echo $with_multilib_list | sed -e 's/,/ /g'`
+ for aarch64_multilib in ${aarch64_multilibs}; do
+ case ${aarch64_multilib} in
+ ilp32)
+ AC_MSG_ERROR([Assembler does not support -mabi=ilp32.\
+ Upgrade the Assembler.])
+ ;;
+ *)
+ ;;
+ esac
+ done
+ fi
+ fi
+ ;;
+
# All TARGET_ABI_OSF targets.
- alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
+ alpha*-*-linux* | alpha*-*-*bsd*)
gcc_GAS_CHECK_FEATURE([explicit relocation support],
gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
[ .set nomacro
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
[Define if your assembler supports .register.])])
+ gcc_GAS_CHECK_FEATURE([@%:@nobits], gcc_cv_as_sparc_nobits,,,
+ [.section "nobits",#alloc,#write,#nobits
+ .section "progbits",#alloc,#write,#progbits])
+ AC_DEFINE_UNQUOTED(HAVE_AS_SPARC_NOBITS,
+ [`if test $gcc_cv_as_sparc_nobits = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler supports #nobits, 0 otherwise.])
+
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
[-relax], [.text],,
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
fnaddd %f10, %f12, %f14],,
[AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1,
[Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])])
+
+ gcc_GAS_CHECK_FEATURE([SPARC4 instructions],
+ gcc_cv_as_sparc_sparc4,,
+ [-xarch=sparc4],
+ [.text
+ .register %g2, #scratch
+ .register %g3, #scratch
+ .align 4
+ cxbe %g2, %g3, 1f
+1: cwbneg %g2, %g3, 1f
+1: sha1
+ md5
+ aes_kexpand0 %f4, %f6, %f8
+ des_round %f38, %f40, %f42, %f44
+ camellia_f %f54, %f56, %f58, %f60
+ kasumi_fi_xor %f46, %f48, %f50, %f52],,
+ [AC_DEFINE(HAVE_AS_SPARC4, 1,
+ [Define if your assembler supports SPARC4 instructions.])])
+
+ gcc_GAS_CHECK_FEATURE([LEON instructions],
+ gcc_cv_as_sparc_leon,,
+ [-Aleon],
+ [.text
+ .register %g2, #scratch
+ .register %g3, #scratch
+ .align 4
+ smac %g2, %g3, %g1
+ umac %g2, %g3, %g1
+ cas [[%g2]], %g3, %g1],,
+ [AC_DEFINE(HAVE_AS_LEON, 1,
+ [Define if your assembler supports LEON instructions.])])
;;
changequote(,)dnl
# wrappers to aid in interposing and redirecting operators new, delete,
# etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
# are configuring for a version of Cygwin that exports the wrappers.
- if test x$host = x$target; then
+ if test x$host = x$target && test x$host_cpu = xi686; 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
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
[Define if your assembler supports the sahf mnemonic in 64bit mode.])])
+ gcc_GAS_CHECK_FEATURE([interunit movq mnemonic],
+ gcc_cv_as_ix86_interunit_movq,,,
+ [.code64
+ movq %mm0, %rax
+ movq %rax, %xmm0])
+ AC_DEFINE_UNQUOTED(HAVE_AS_IX86_INTERUNIT_MOVQ,
+ [`if test $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`],
+ [Define if your assembler supports interunit movq mnemonic.])
+
+ gcc_GAS_CHECK_FEATURE([hle prefixes],
+ gcc_cv_as_ix86_hle,,,
+ [lock xacquire cmpxchg %esi, (%ecx)],,
+ [AC_DEFINE(HAVE_AS_IX86_HLE, 1,
+ [Define if your assembler supports HLE prefixes.])])
+
gcc_GAS_CHECK_FEATURE([swap suffix],
gcc_cv_as_ix86_swap,,,
[movl.s %esp, %ebp],,
# These two are used unconditionally by i386.[ch]; it is to be defined
# to 1 if the feature is present, 0 otherwise.
+ as_ix86_gotoff_in_data_opt=
+ if test x$gas = xyes; then
+ as_ix86_gotoff_in_data_opt="--32"
+ fi
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
- gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
+ gcc_cv_as_ix86_gotoff_in_data, [2,11,0],
+ [$as_ix86_gotoff_in_data_opt],
[ .text
.L0:
nop
gcc_GAS_CHECK_FEATURE([rep and lock prefix],
gcc_cv_as_ix86_rep_lock_prefix,,,
[rep movsl
+ rep ret
+ rep nop
+ rep bsf %ecx, %eax
+ rep bsr %ecx, %eax
lock addl %edi, (%eax,%esi)
lock orl $0, (%esp)],,
[AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
[Define if the assembler supports 'rep <insn>, lock <insn>'.])])
+ gcc_GAS_CHECK_FEATURE([ud2 mnemonic],
+ gcc_cv_as_ix86_ud2,,,
+ [ud2],,
+ [AC_DEFINE(HAVE_AS_IX86_UD2, 1,
+ [Define if your assembler supports the 'ud2' mnemonic.])])
+
gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
gcc_cv_as_ix86_tlsgdplt,,,
[call tls_gd@tlsgdplt],
[AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1,
[Define if your assembler and linker support @tlsgdplt.])])
+ conftest_s='
+ .section .tdata,"aw'$tls_section_flag'",@progbits
+tls_ld:
+ .section .text,"ax",@progbits
+ call tls_ld@tlsldmplt'
gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc],
gcc_cv_as_ix86_tlsldmplt,,,
- [tls_ld:
- call tls_ld@tlsldmplt],
+ [$conftest_s],
[if test x$gcc_cv_ld != x \
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
gcc_cv_as_ix86_tlsldmplt=yes
fi
- rm -f conftest],
- [AC_DEFINE(HAVE_AS_IX86_TLSLDMPLT, 1,
- [Define if your assembler and linker support @tlsldmplt.])])
+ rm -f conftest])
+ AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT,
+ [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler and linker support @tlsldmplt.])
+
+ # Enforce 32-bit output with gas and gld.
+ if test x$gas = xyes; then
+ as_ix86_tls_ldm_opt="--32"
+ fi
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
+ ld_ix86_tls_ldm_opt="-melf_i386_sol2"
+ else
+ ld_ix86_tls_ldm_opt="-melf_i386"
+ fi
+ fi
+ conftest_s='
+ .section .text,"ax",@progbits
+ .globl _start
+ .type _start, @function
+_start:
+ leal value@tlsldm(%ebx), %eax
+ call ___tls_get_addr@plt
+
+ .section .tdata,"aw'$tls_section_flag'",@progbits
+ .type value, @object
+value:'
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc],
+ gcc_cv_as_ix86_tlsldm,,
+ [$as_ix86_tls_ldm_opt],
+ [$conftest_s],
+ [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
+ && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
+ if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \
+ || dis conftest 2>/dev/null | grep nop > /dev/null; then
+ gcc_cv_as_ix86_tlsldm=yes
+ fi
+ fi
+ rm -f conftest])
+ AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM,
+ [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler and linker support @tlsldm.])
;;
[AC_DEFINE(HAVE_AS_POPCNTD, 1,
[Define if your assembler supports POPCNTD instructions.])])
+ case $target in
+ *-*-aix*) conftest_s=' .machine "pwr8"
+ .csect .text[[PR]]';;
+ *) conftest_s=' .machine power8
+ .text';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([power8 support],
+ gcc_cv_as_powerpc_power8, [2,19,2], -a32,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_POWER8, 1,
+ [Define if your assembler supports POWER8 instructions.])])
+
case $target in
*-*-aix*) conftest_s=' .csect .text[[PR]]
lwsync';;
case $target in
*-*-aix*)
gcc_GAS_CHECK_FEATURE([.ref support],
- gcc_cv_as_aix_ref, [2.21.0],,
+ gcc_cv_as_aix_ref, [2,21,0],,
[ .csect stuff[[rw]]
stuff:
.long 1
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
[Define if your assembler supports .gnu_attribute.])])
+ gcc_GAS_CHECK_FEATURE([.micromips support],
+ gcc_cv_as_micromips_support,,[--fatal-warnings],
+ [.set micromips],,
+ [AC_DEFINE(HAVE_GAS_MICROMIPS, 1,
+ [Define if your assembler supports the .set micromips directive])])
+
gcc_GAS_CHECK_FEATURE([.dtprelword support],
gcc_cv_as_mips_dtprelword, [2,18,0],,
[.section .tdata,"awT",@progbits
[Define if your linker can relax absolute .eh_frame personality
pointers into PC-relative form.])
fi
+
+ gcc_GAS_CHECK_FEATURE([-mnan= support],
+ gcc_cv_as_mips_nan,,
+ [-mnan=2008],,,
+ [AC_DEFINE(HAVE_AS_NAN, 1,
+ [Define if the assembler understands -mnan=.])])
+ if test x$gcc_cv_as_mips_nan = xno \
+ && test x$with_nan != x; then
+ AC_MSG_ERROR(
+ [Requesting --with-nan= requires assembler support for -mnan=])
+ fi
;;
esac
# ??? Once 2.11 is released, probably need to add first known working
# version to the per-target configury.
case "$cpu_type" in
- alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze | mips \
- | pa | rs6000 | score | sparc | spu | tilegx | tilepro | xstormy16 | xtensa)
+ aarch64 | alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze \
+ | mips | nios2 | pa | rs6000 | score | sparc | spu | tilegx | tilepro \
+ | xstormy16 | xtensa)
insn="nop"
;;
ia64 | s390)
[AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
[Define if your assembler supports .lcomm with an alignment field.])])
+if test x$with_sysroot = x && test x$host = x$target \
+ && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
+ && test "$prefix" != "NONE"; then
+ AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
+[Define to PREFIX/include if cpp should also search that directory.])
+fi
+
+if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
+ if test "x$with_headers" != x; then
+ target_header_dir=$with_headers
+ elif test "x$with_sysroot" = x; then
+ target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include"
+ elif test "x$with_build_sysroot" != "x"; then
+ target_header_dir="${with_build_sysroot}${native_system_header_dir}"
+ elif test "x$with_sysroot" = xyes; then
+ target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}"
+ else
+ target_header_dir="${with_sysroot}${native_system_header_dir}"
+ fi
+else
+ target_header_dir=${native_system_header_dir}
+fi
+
+# Determine the version of glibc, if any, used on the target.
+AC_MSG_CHECKING([for target glibc version])
+AC_ARG_WITH([glibc-version],
+ [AS_HELP_STRING([--with-glibc-version=M.N],
+ [assume GCC used with glibc version M.N or later])], [
+if [echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$']; then
+ glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'`
+ glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'`
+else
+ AC_MSG_ERROR([option --with-glibc-version requires a version number M.N])
+fi], [
+glibc_version_major=0
+glibc_version_minor=0
+[if test -f $target_header_dir/features.h \
+ && glibc_version_major_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+[0-9]' $target_header_dir/features.h` \
+ && glibc_version_minor_define=`$EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+[0-9]' $target_header_dir/features.h`; then
+ glibc_version_major=`echo "$glibc_version_major_define" | sed -e 's/.*__GLIBC__[ ]*//'`
+ glibc_version_minor=`echo "$glibc_version_minor_define" | sed -e 's/.*__GLIBC_MINOR__[ ]*//'`
+fi]])
+AC_MSG_RESULT([$glibc_version_major.$glibc_version_minor])
+
AC_ARG_ENABLE(gnu-unique-object,
[AS_HELP_STRING([--enable-gnu-unique-object],
[enable the use of the @gnu_unique_object ELF extension on glibc systems])],
esac],
[gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
[elf,2,19,52],,
- [.type foo, @gnu_unique_object],,
+ [.type foo, '$target_type_format_char'gnu_unique_object],,
+# We need to unquote above to to use the definition from config.gcc.
# Also check for ld.so support, i.e. glibc 2.11 or higher.
- [[if test x$host = x$build -a x$host = x$target &&
- ldd --version 2>/dev/null &&
- 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]])])
+ [GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )]
+ )])
if test x$enable_gnu_unique_object = xyes; then
AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
[Define if your assembler supports @gnu_unique_object.])
fi
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
+AC_MSG_CHECKING(linker CIEv3 in .eh_frame support)
+gcc_cv_ld_eh_frame_ciev3=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_eh_frame_ciev3=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ gcc_cv_ld_eh_frame_ciev3=yes
+ if test 0"$ld_date" -lt 20040513; then
+ if test -n "$ld_date"; then
+ # If there was date string, but was earlier than 2004-05-13, fail
+ gcc_cv_ld_eh_frame_ciev3=no
+ elif test "$ld_vers_major" -lt 2; then
+ gcc_cv_ld_eh_frame_ciev3=no
+ elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
+ gcc_cv_ld_eh_frame_ciev3=no
+ fi
+ fi
+ else
+ case "$target" in
+ *-*-solaris2*)
+ # Sun ld added support for CIE v3 in .eh_frame in Solaris 11.1.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2324; then
+ gcc_cv_ld_eh_frame_ciev3=yes
+ fi
+ ;;
+ esac
+ fi
+fi
+AC_DEFINE_UNQUOTED(HAVE_LD_EH_FRAME_CIEV3,
+ [`if test x"$gcc_cv_ld_eh_frame_ciev3" = xyes; then echo 1; else echo 0; fi`],
+ [Define 0/1 if your linker supports CIE v3 in .eh_frame.])
+AC_MSG_RESULT($gcc_cv_ld_eh_frame_ciev3)
+
AC_MSG_CHECKING(linker position independent executable support)
gcc_cv_ld_pie=no
if test $in_tree_ld = yes ; then
AC_CACHE_CHECK(linker --as-needed support,
gcc_cv_ld_as_needed,
[gcc_cv_ld_as_needed=no
+gcc_cv_ld_as_needed_option='--as-needed'
+gcc_cv_ld_no_as_needed_option='--no-as-needed'
if test $in_tree_ld = yes ; then
if test "$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
# Check if linker supports --as-needed and --no-as-needed options
if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
gcc_cv_ld_as_needed=yes
+ else
+ case "$target" in
+ # Solaris 2 ld always supports -z ignore/-z record.
+ *-*-solaris2*)
+ gcc_cv_ld_as_needed=yes
+ gcc_cv_ld_as_needed_option="-z ignore"
+ gcc_cv_ld_no_as_needed_option="-z record"
+ ;;
+ esac
fi
fi
+# --as-needed/-z ignore can only be used if libgcc_s.so.1 uses
+# dl_iterate_phdr, i.e. since Solaris 11.
+case "$target" in
+ *-*-solaris2.1[[1-9]]*)
+ case "$target" in
+ i?86-*-* | x86_64-*-*)
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Doesn't work with gld on Solaris/x86 due to PR ld/12320.
+ gcc_cv_ld_as_needed=no
+ fi
+ ;;
+ esac
+ ;;
+ *-*-solaris2*)
+ gcc_cv_ld_as_needed=no
+ ;;
+esac
])
if test x"$gcc_cv_ld_as_needed" = xyes; then
AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
-[Define if your linker supports --as-needed and --no-as-needed options.])
+[Define if your linker supports --as-needed/--no-as-needed or equivalent options.])
+ AC_DEFINE_UNQUOTED(LD_AS_NEEDED_OPTION, "$gcc_cv_ld_as_needed_option",
+[Define to the linker option to ignore unused dependencies.])
+ AC_DEFINE_UNQUOTED(LD_NO_AS_NEEDED_OPTION, "$gcc_cv_ld_no_as_needed_option",
+[Define to the linker option to keep unused dependencies.])
fi
case "$target:$tm_file" in
- powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+ powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+ case "$target" in
+ *le-*-linux*)
+ emul_name="-melf64lppc"
+ ;;
+ *-*-linux*)
+ emul_name="-melf64ppc"
+ ;;
+ *-*-freebsd*)
+ emul_name="-melf64ppc_fbsd"
+ ;;
+ esac
AC_CACHE_CHECK(linker support for omitting dot symbols,
gcc_cv_ld_no_dot_syms,
[gcc_cv_ld_no_dot_syms=no
- if test $in_tree_ld = yes ; then
+ if test x"$ld_is_gold" = xyes; then
+ gcc_cv_ld_no_dot_syms=yes
+ elif test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
gcc_cv_ld_no_dot_syms=yes
fi
EOF
if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
&& $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
- && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
+ && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
gcc_cv_ld_no_dot_syms=yes
fi
rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
AC_CACHE_CHECK(linker large toc support,
gcc_cv_ld_large_toc,
[gcc_cv_ld_large_toc=no
- if test $in_tree_ld = yes ; then
+ if test x"$ld_is_gold" = xyes; then
+ gcc_cv_ld_large_toc=yes
+ elif 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
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 $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+ gcc_cv_ld_large_toc=yes
+ fi
+ rm -f conftest conftest.o conftest.s
+ fi
+ ])
+ if test x"$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
+
+case "$target" in
+ *-*-aix*)
+ AC_CACHE_CHECK(linker large toc support,
+ gcc_cv_ld_large_toc,
+ [gcc_cv_ld_large_toc=no
+ if test x$gcc_cv_as != x ; then
+ cat > conftest.s <<EOF
+ .toc
+LC..1:
+ .tc a[[TC]],a[[RW]]
+ .extern a[[RW]]
+ .csect .text[[PR]]
+.largetoctest:
+ addis 9,LC..1@u(2)
+ ld 3,LC..1@l(9)
+EOF
+ if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then
gcc_cv_ld_large_toc=yes
fi
rm -f conftest conftest.o conftest.s
[Define if your linker supports --sysroot.])
fi
-if test x$with_sysroot = x && test x$host = x$target \
- && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
- && test "$prefix" != "NONE"; then
- AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
-[Define to PREFIX/include if cpp should also search that directory.])
-fi
-
-if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
- if test "x$with_headers" != x; then
- target_header_dir=$with_headers
- elif test "x$with_sysroot" = x; then
- target_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
- elif test "x$with_build_sysroot" != "x"; then
- target_header_dir="${with_build_sysroot}${native_system_header_dir}"
- elif test "x$with_sysroot" = xyes; then
- target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}"
- else
- target_header_dir="${with_sysroot}${native_system_header_dir}"
- fi
-else
- target_header_dir=${native_system_header_dir}
-fi
-
# Test for stack protector support in target C library.
AC_CACHE_CHECK(__stack_chk_fail in target C library,
gcc_cv_libc_provides_ssp,
[gcc_cv_libc_provides_ssp=no
case "$target" in
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
- [# 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 $target_header_dir/features.h \
+ GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_libc_provides_ssp=yes], [
+ [if test -f $target_header_dir/features.h \
&& $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
$target_header_dir/features.h > /dev/null; then
- if $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
- $target_header_dir/features.h > /dev/null; then
- gcc_cv_libc_provides_ssp=yes
- elif $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+2' \
- $target_header_dir/features.h > /dev/null \
- && $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
- $target_header_dir/features.h > /dev/null; then
- gcc_cv_libc_provides_ssp=yes
- elif $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
+ if $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
$target_header_dir/features.h > /dev/null && \
test -f $target_header_dir/bits/uClibc_config.h && \
$EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
$target_header_dir/bits/uClibc_config.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
fi
- fi]
+ # all versions of Bionic support stack protector
+ elif test -f $target_header_dir/sys/cdefs.h \
+ && $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \
+ $target_header_dir/sys/cdefs.h > /dev/null; then
+ gcc_cv_libc_provides_ssp=yes
+ fi]])
;;
*-*-gnu*)
# Avoid complicated tests (see
[AS_HELP_STRING([--with-long-double-128],
[use 128-bit long double by default])],
gcc_cv_target_ldbl128="$with_long_double_128",
- [[gcc_cv_target_ldbl128=no
+ [GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [
+ [gcc_cv_target_ldbl128=no
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
$target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
- ]])
+ ]])])
;;
esac
if test x$gcc_cv_target_ldbl128 = xyes; then
fi
AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr)
-# Find out what GC implementation we want, or may, use.
+# We no longer support different GC mechanisms. Emit an error if
+# the user configures with --with-gc.
AC_ARG_WITH(gc,
[AS_HELP_STRING([--with-gc={page,zone}],
- [choose the garbage collection mechanism to use
- with the compiler])],
-[case "$withval" in
- page)
- GGC=ggc-$withval
- ;;
- zone)
- GGC=ggc-$withval
- AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
- ;;
- *)
- AC_MSG_ERROR([$withval is an invalid option to --with-gc])
- ;;
-esac],
-[GGC=ggc-page])
-AC_SUBST(GGC)
-echo "Using $GGC for garbage collection."
+ [this option is not supported anymore. It used to choose
+ the garbage collection mechanism to use with the compiler])],
+[AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])],
+[])
# Libraries to use on the host. This will normally be set by the top
# level Makefile. Here we simply capture the value for our Makefile.
fi
AC_SUBST(MAINT)dnl
+dnl Whether to prevent multiple front-ends from linking at the same time
+
+AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once])
+ AC_ARG_ENABLE(link-mutex,
+[AS_HELP_STRING([--enable-link-mutex],
+ [avoid linking multiple front-ends at once to avoid thrashing
+ on the build machine])],
+ do_link_mutex=$enableval,
+ do_link_mutex=no)
+AC_MSG_RESULT($do_link_mutex)
+
+if test "$do_link_mutex" = "yes"; then
+ DO_LINK_MUTEX=true
+else
+ DO_LINK_MUTEX=false
+fi
+AC_SUBST(DO_LINK_MUTEX)
+
# --------------
# Language hooks
# --------------
esac
done
-# Pick up gtfiles for c
-gtfiles=
-. ${srcdir}/c-config-lang.in
-all_gtfiles="$all_gtfiles [[c]] $gtfiles"
-
check_languages=
for language in $all_selected_languages
do
done
fi
echo "source ${srcdir}/gdbinit.in" >> .gdbinit
+echo "python import sys; sys.path.append('${srcdir}'); import gdbhooks" >> .gdbinit
+
+# Put a breakpoint on __asan_report_error to help with debugging buffer
+# overflow.
+case "$CFLAGS" in
+*-fsanitize=address*)
+ echo "source ${srcdir}/gdbasan.in" >> .gdbinit
+ ;;
+esac
gcc_tooldir='$(libsubdir)/$(libsubdir_to_prefix)$(target_noncanonical)'
AC_SUBST(gcc_tooldir)
AC_SUBST(user_headers_inc_next_post)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
-AC_SUBST(extra_passes)
AC_SUBST(extra_programs)
AC_SUBST(float_h_file)
AC_SUBST(gcc_config_arguments)
AC_ARG_VAR(GMPLIBS,[How to link GMP])
AC_ARG_VAR(GMPINC,[How to find GMP include files])
-AC_ARG_VAR(PPLLIBS,[How to link PPL])
-AC_ARG_VAR(PPLINC,[How to find PPL include files])
+AC_ARG_VAR(ISLLIBS,[How to link ISL])
+AC_ARG_VAR(ISLINC,[How to find ISL include files])
AC_ARG_VAR(CLOOGLIBS,[How to link CLOOG])
AC_ARG_VAR(CLOOGINC,[How to find CLOOG include files])
AC_MSG_CHECKING([for exported symbols])
if test "x$export_sym_check" != x; then
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
- ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $export_sym_check conftest | grep foobar > /dev/null; then
+ ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest$ac_exeext > /dev/null 2>&1
+ if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
: # No need to use a flag
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([yes])
AC_MSG_CHECKING([for -rdynamic])
- ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $export_sym_check conftest | grep foobar > /dev/null; then
+ ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest$ac_exeext > /dev/null 2>&1
+ if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
plugin_rdynamic=yes
pluginlibs="-rdynamic"
else
fi
+# Enable --enable-host-shared
+AC_ARG_ENABLE(host-shared,
+[AS_HELP_STRING([--enable-host-shared],
+ [build host code as shared libraries])],
+[PICFLAG=-fPIC], [PICFLAG=])
+AC_SUBST(enable_host_shared)
+AC_SUBST(PICFLAG)
+
+
AC_ARG_ENABLE(libquadmath-support,
[AS_HELP_STRING([--disable-libquadmath-support],
[disable libquadmath support for Fortran])],
projects / gcc.git / blobdiff