# 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 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
#This file is part of GCC.
# Specify the local prefix
local_prefix=
AC_ARG_WITH(local-prefix,
-[ --with-local-prefix=DIR specifies directory to put local include],
+[AS_HELP_STRING([--with-local-prefix=DIR],
+ [specifies directory to put local include])],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
no) ;;
gcc_gxx_include_dir=
# Specify the g++ header file directory
AC_ARG_WITH(gxx-include-dir,
-[ --with-gxx-include-dir=DIR
- specifies directory to put g++ header files],
+[AS_HELP_STRING([--with-gxx-include-dir=DIR],
+ [specifies directory to put g++ header files])],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
no) ;;
fi
fi
+gcc_gxx_include_dir_add_sysroot=0
+if test "${with_sysroot+set}" = set; then
+ gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+ if test "${gcc_gxx_without_sysroot}"; then
+ gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
+ gcc_gxx_include_dir_add_sysroot=1
+ fi
+fi
+
AC_ARG_WITH(cpp_install_dir,
-[ --with-cpp-install-dir=DIR
- install the user visible C preprocessor in DIR
- (relative to PREFIX) as well as PREFIX/bin],
+[AC_HELP_STRING([--with-cpp-install-dir=DIR],
+ [install the user visible C preprocessor in DIR
+ (relative to PREFIX) as well as PREFIX/bin])],
[if test x$withval = xyes; then
AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
elif test x$withval != xno; then
AC_MSG_CHECKING([whether to place generated files in the source directory])
dnl generated-files-in-srcdir is disabled by default
AC_ARG_ENABLE(generated-files-in-srcdir,
-[ --enable-generated-files-in-srcdir
- put copies of generated files in source dir
- intended for creating source tarballs for users
- without texinfo bison or flex.],
+ [AS_HELP_STRING([--enable-generated-files-in-srcdir],
+ [put copies of generated files in source dir
+ intended for creating source tarballs for users
+ without texinfo bison or flex])],
generated_files_in_srcdir=$enableval,
generated_files_in_srcdir=no)
# With GNU ld
AC_ARG_WITH(gnu-ld,
-[ --with-gnu-ld arrange to work with GNU ld.],
+[AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])],
gnu_ld_flag="$with_gnu_ld",
gnu_ld_flag=no)
# With pre-defined ld
AC_ARG_WITH(ld,
-[ --with-ld arrange to use the specified ld (full pathname)],
+[AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])],
DEFAULT_LINKER="$with_ld")
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test ! -x "$DEFAULT_LINKER"; then
[Define to enable the use of a default linker.])
fi
-gnu_ld=`if test x"$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"$gnu_ld_flag" = x"no"; then
# With demangler in GNU ld
AC_ARG_WITH(demangler-in-ld,
-[ --with-demangler-in-ld try to use demangler in GNU ld.],
+[AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])],
demangler_in_ld="$with_demangler_in_ld",
-demangler_in_ld=no)
+demangler_in_ld=yes)
# ----------------------
# Find default assembler
# With GNU as
AC_ARG_WITH(gnu-as,
-[ --with-gnu-as arrange to work with GNU as],
+[AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])],
gas_flag="$with_gnu_as",
gas_flag=no)
AC_ARG_WITH(as,
-[ --with-as arrange to use the specified as (full pathname)],
+[AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])],
DEFAULT_ASSEMBLER="$with_as")
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test ! -x "$DEFAULT_ASSEMBLER"; 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
esac
AC_SUBST(CFLAGS)
+# Determine PICFLAG for target gnatlib.
+GCC_PICFLAG_FOR_TARGET
+AC_SUBST(PICFLAG_FOR_TARGET)
+
# -------------------------
# Check C compiler features
# -------------------------
# * 'long long'
# * variadic macros
# * overlong strings
+# * C++11 narrowing conversions in { }
# So, we only use -pedantic if we can disable those warnings.
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn])
+ m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual])), [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
[c_loose_warn])
AC_SUBST(warn_cflags)
AC_SUBST(warn_cxxflags)
+# Disable exceptions and RTTI if building with g++
+ACX_PROG_CC_WARNING_OPTS(
+ m4_quote(m4_do([-fno-exceptions -fno-rtti])), [noexception_flags])
+
# Enable expensive internal checks
is_release=
if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
fi
AC_ARG_ENABLE(checking,
-[ --enable-checking[=LIST]
- enable expensive run-time checks. With LIST,
- enable only specific categories of checks.
- Categories are: yes,no,all,none,release.
- Flags are: assert,df,fold,gc,gcac,gimple,misc,
- rtlflag,rtl,runtime,tree,valgrind,types.],
+[AS_HELP_STRING([[--enable-checking[=LIST]]],
+ [enable expensive run-time checks. With LIST,
+ enable only specific categories of checks.
+ Categories are: yes,no,all,none,release.
+ Flags are: assert,df,fold,gc,gcac,gimple,misc,
+ rtlflag,rtl,runtime,tree,valgrind,types])],
[ac_checking_flags="${enableval}"],[
# Determine the default checks.
if test x$is_release = x ; then
# Enable code coverage collection
AC_ARG_ENABLE(coverage,
-[ --enable-coverage[=LEVEL]
- enable compiler's code coverage collection.
- Use to measure compiler performance and locate
- unused parts of the compiler. With LEVEL, specify
- optimization. Values are opt, noopt,
- default is noopt],
+[AS_HELP_STRING([[--enable-coverage[=LEVEL]]],
+ [enable compiler's code coverage collection.
+ Use to measure compiler performance and locate
+ unused parts of the compiler. With LEVEL, specify
+ optimization. Values are opt, noopt,
+ default is noopt])],
[case "${enableval}" in
yes|noopt)
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
AC_SUBST(coverage_flags)
AC_ARG_ENABLE(gather-detailed-mem-stats,
-[ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
+[AS_HELP_STRING([--enable-gather-detailed-mem-stats],
+ [enable detailed memory allocation stats gathering])], [],
[enable_gather_detailed_mem_stats=no])
if test x$enable_gather_detailed_mem_stats = xyes ; then
AC_DEFINE(GATHER_STATISTICS, 1,
# See if we are building gcc with C++.
AC_ARG_ENABLE(build-with-cxx,
-[ --enable-build-with-cxx build with C++ compiler instead of C compiler],
+[AS_HELP_STRING([--enable-build-with-cxx],
+ [build with C++ compiler instead of C compiler])],
ENABLE_BUILD_WITH_CXX=$enableval,
ENABLE_BUILD_WITH_CXX=no)
AC_SUBST(ENABLE_BUILD_WITH_CXX)
# With stabs
AC_ARG_WITH(stabs,
-[ --with-stabs arrange to use stabs instead of host debug format],
+[AS_HELP_STRING([--with-stabs],
+ [arrange to use stabs instead of host debug format])],
stabs="$with_stabs",
stabs=no)
# Determine whether or not multilibs are enabled.
AC_ARG_ENABLE(multilib,
-[ --enable-multilib enable library support for multiple ABIs],
+[AS_HELP_STRING([--enable-multilib],
+ [enable library support for multiple ABIs])],
[], [enable_multilib=yes])
AC_SUBST(enable_multilib)
+# Determine whether or not multiarch is enabled.
+AC_ARG_ENABLE(multiarch,
+[AS_HELP_STRING([--enable-multiarch],
+ [enable support for multiarch paths])],
+[case "${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,
-[ --enable-__cxa_atexit enable __cxa_atexit for C++],
+[AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
[], [])
# Enable C extension for decimal float if target supports it.
# Enable C extension for fixed-point arithmetic.
AC_ARG_ENABLE(fixed-point,
-[ --enable-fixed-point enable fixed-point arithmetic extension to C],
-[
-],
+[AS_HELP_STRING([--enable-fixed-point],
+ [enable fixed-point arithmetic extension to C])],
+[],
[
case $target in
+ arm*)
+ enable_fixed_point=yes
+ ;;
+
mips*-*-*)
case $host in
mips*-sgi-irix*)
# Pass with no value to take the default
# Pass with a value to specify a thread package
AC_ARG_ENABLE(threads,
-[ --enable-threads enable thread usage for target GCC
- --enable-threads=LIB use LIB thread package for target GCC],,
+[AS_HELP_STRING([[--enable-threads[=LIB]]],
+ [enable thread usage for target GCC,
+ using LIB thread package])],,
[enable_threads=''])
AC_ARG_ENABLE(tls,
-[ --enable-tls enable or disable generation of tls code
- overriding the assembler check for tls support],
+[AS_HELP_STRING([--enable-tls],
+ [enable or disable generation of tls code
+ overriding the assembler check for tls support])],
[
case $enable_tls in
yes | no) ;;
], [enable_tls=''])
AC_ARG_ENABLE(objc-gc,
-[ --enable-objc-gc enable the use of Boehm's garbage collector with
- the GNU Objective-C runtime],
+[AS_HELP_STRING([--enable-objc-gc],
+ [enable the use of Boehm's garbage collector with
+ the GNU Objective-C runtime])],
if test x$enable_objc_gc = xno; then
objc_boehm_gc=''
else
objc_boehm_gc='')
AC_ARG_WITH(dwarf2,
-[ --with-dwarf2 force the default debug format to be DWARF 2],
+[AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])],
dwarf2="$with_dwarf2",
dwarf2=no)
AC_ARG_ENABLE(shared,
-[ --disable-shared don't provide a shared libgcc],
+[AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])],
[
case $enable_shared in
yes | no) ;;
], [enable_shared=yes])
AC_SUBST(enable_shared)
+AC_ARG_WITH([native-system-header-dir],
+ [ --with-native-system-header-dir=dir
+ use dir as the directory to look for standard
+ system header files in. Defaults to /usr/include.],
+[
+ case ${with_native_system_header_dir} in
+ yes|no) AC_MSG_ERROR([bad value ${withval} given for --with-native-system-header-dir]) ;;
+ /* | [[A-Za-z]]:[[\\/]]*) ;;
+ *) AC_MSG_ERROR([--with-native-system-header-dir argument ${withval} must be an absolute directory]) ;;
+ esac
+ configured_native_system_header_dir="${withval}"
+], [configured_native_system_header_dir=])
+
AC_ARG_WITH(build-sysroot,
- [ --with-build-sysroot=sysroot
- use sysroot as the system root during the build])
+ [AS_HELP_STRING([--with-build-sysroot=sysroot],
+ [use sysroot as the system root during the build])],
+ [if test x"$withval" != x ; then
+ SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
+ fi],
+ [SYSROOT_CFLAGS_FOR_TARGET=])
+AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
AC_ARG_WITH(sysroot,
-[ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
+[AS_HELP_STRING([[--with-sysroot[=DIR]]],
+ [search for usr/lib, usr/include, et al, within DIR])],
[
case ${with_sysroot} in
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
-[ --enable-languages=LIST specify which front-ends to build],
+[AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])],
[case ,${enable_languages}, in
,,|,yes,)
# go safe -- we cannot be much sure without the toplevel
[enable_languages=c])
AC_ARG_WITH(multilib-list,
-[ --with-multilib-list Select multilibs (SH only)],
+[AS_HELP_STRING([--with-multilib-list], [select multilibs (SH and x86-64 only)])],
:,
with_multilib_list=default)
gcc_AC_PROG_LN_S
ACX_PROG_LN($LN_S)
AC_PROG_RANLIB
-case "${host}" in
-*-*-darwin*)
- # By default, the Darwin ranlib will not treat common symbols as
- # definitions when building the archive table of contents. Other
- # ranlibs do that; pass an option to the Darwin ranlib that makes
- # it behave similarly.
- ranlib_flags="-c"
- ;;
-*)
- ranlib_flags=""
-esac
+ranlib_flags=""
AC_SUBST(ranlib_flags)
gcc_AC_PROG_INSTALL
LIBS="$save_LIBS"
AC_SUBST(GNAT_LIBEXC)
+# To support -mcpu=native on Solaris/SPARC, we need libkstat.
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(kstat_open, kstat)
+EXTRA_GCC_LIBS="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(EXTRA_GCC_LIBS)
+
# Some systems put ldexp and frexp in libm instead of libc; assume
# they're both in the same place. jcf-dump needs them.
save_LIBS="$LIBS"
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
sysconf strsignal getrusage nl_langinfo \
gettimeofday mbstowcs wcswidth mmap setlocale \
- gcc_UNLOCKED_FUNCS)
+ gcc_UNLOCKED_FUNCS madvise)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
esac
AC_FUNC_FORK
-AM_ICONV
+# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
+# iconv() prototype.
+AS_IF([test "$ENABLE_BUILD_WITH_CXX" = "yes"],
+ [AC_LANG_PUSH([C++])
+ AM_ICONV
+ AC_LANG_POP([C++])],
+ [AM_ICONV])
+
# Until we have in-tree GNU iconv:
LIBICONV_DEP=
AC_SUBST(LIBICONV_DEP)
# We will need to find libiberty.h and ansidecl.h
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
+saved_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include"
gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
- strsignal strstr strverscmp \
+ strsignal strstr stpcpy strverscmp \
errno snprintf vsnprintf vasprintf malloc realloc calloc \
free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
#include "ansidecl.h"
#include <signal.h>
])
+# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which hides the madvise()
+# prototype.
+AS_IF([test "$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"
+ ])
+])
+
# More time-related stuff.
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
[Define if <time.h> defines clock_t.])
fi
-# Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
-CFLAGS="$saved_CFLAGS"
+# 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 $ac_cv_f_setlkw = yes; then
+ AC_DEFINE(HOST_HAS_F_SETLKW, 1,
+ [Define if F_SETLKW supported by fcntl.])
+fi
-gcc_AC_INITFINI_ARRAY
+# Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
+CFLAGS="$saved_CFLAGS"
+CXXFLAGS="$saved_CXXFLAGS"
# mkdir takes a single argument on some systems.
gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
# With Setjmp/Longjmp based exception handling.
AC_ARG_ENABLE(sjlj-exceptions,
-[ --enable-sjlj-exceptions
- arrange to use setjmp/longjmp exception handling],
+[AS_HELP_STRING([--enable-sjlj-exceptions],
+ [arrange to use setjmp/longjmp exception handling])],
[case $target in
*-*-hpux10*)
if test $enableval != yes; then
[Define 0/1 to force the choice for exception handling model.])
fi
-# For platforms with the unwind ABI which includes an unwind library,
-# libunwind, we can choose to use the system libunwind.
-# config.gcc also contains tests of with_system_libunwind.
-GCC_CHECK_UNWIND_GETIPINFO
-
# --------------------------------------------------------
# Build, host, and target specific configuration fragments
# --------------------------------------------------------
then tmake_file=$cpu_type/t-$cpu_type
fi
+# Support --enable-initfini-array.
+if test x$enable_initfini_array != xno; then
+ tm_file="${tm_file} initfini-array.h"
+fi
+
if test x"$dwarf2" = xyes
then tm_file="$tm_file tm-dwarf2.h"
fi
efficiently supported by the host hardware.])
fi
+gnu_ld_bool=`if test x"$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
fi
fi
+if test -n "$configured_native_system_header_dir"; then
+ native_system_header_dir=$configured_native_system_header_dir
+fi
+NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir"
+AC_SUBST(NATIVE_SYSTEM_HEADER_DIR)
+
case ${host} in
powerpc*-*-darwin*)
AC_CACHE_CHECK([whether mcontext_t fields have underscores],
# default
target_thread_file='single'
;;
- aix | dce | gnat | irix | posix | posix95 | rtems | \
- single | solaris | vxworks | win32 | mipssde)
+ aix | dce | lynx | mipssde | posix | rtems | \
+ single | tpf | vxworks | win32)
target_thread_file=${enable_threads}
;;
*)
thread_file=${target_thread_file}
fi
-# Make gthr-default.h if we have a thread file.
-gthread_flags=
-if test $thread_file != single; then
- echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t
- if diff gthr-default.h-t gthr-default.h 2>/dev/null; then
- rm -f gthr-default.h-t
- else
- mv -f gthr-default.h-t gthr-default.h
- fi
- gthread_flags=-DHAVE_GTHR_DEFAULT
-fi
-AC_SUBST(gthread_flags)
-
# --------
# UNSORTED
# --------
cat > plugin-version.h <<EOF
#include "configargs.h"
+#define GCCPLUGIN_VERSION_MAJOR `echo $gcc_BASEVER | sed -e 's/^\([0-9]*\).*$/\1/'`
+#define GCCPLUGIN_VERSION_MINOR `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.\([0-9]*\).*$/\1/'`
+#define GCCPLUGIN_VERSION_PATCHLEVEL `echo $gcc_BASEVER | sed -e 's/^[0-9]*\.[0-9]*\.\([0-9]*\)$/\1/'`
+#define GCCPLUGIN_VERSION (GCCPLUGIN_VERSION_MAJOR*1000 + GCCPLUGIN_VERSION_MINOR)
+
static char basever[] = "$gcc_BASEVER";
static char datestamp[] = "$gcc_DATESTAMP";
static char devphase[] = "$gcc_DEVPHASE";
esac
AC_ARG_ENABLE(secureplt,
-[ --enable-secureplt enable -msecure-plt by default for PowerPC],
+[AS_HELP_STRING([--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]),
+ [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], [],
+[AS_HELP_STRING([--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], [],
+[AS_HELP_STRING([--enable-frame-pointer],
+ [enable -fno-omit-frame-pointer by default for 32bit x86])], [],
[
case $target_os in
linux* | darwin[[8912]]*)
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
-[ --disable-win32-registry
- disable lookup of installation paths in the
- Registry on Windows hosts
- --enable-win32-registry enable registry lookup (default)
- --enable-win32-registry=KEY
- use KEY instead of GCC version as the last portion
- of the registry key],,)
+[AS_HELP_STRING([--disable-win32-registry],
+ [disable lookup of installation paths in the
+ Registry on Windows hosts])
+AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)])
+AS_HELP_STRING([--enable-win32-registry=KEY],
+ [use KEY instead of GCC version as the last portion
+ of the registry key])],,)
case $host_os in
win32 | pe | cygwin* | mingw32* | uwin*)
tmake_file="${tmake_file_}"
out_object_file=`basename $out_file .c`.o
+common_out_object_file=`basename $common_out_file .c`.o
tm_file_list="options.h"
tm_include_list="options.h insn-constants.h"
ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
PLUGIN_LD=`basename $gcc_cv_ld`
AC_ARG_WITH(plugin-ld,
-[ --with-plugin-ld=[[ARG]] specify the plugin linker],
+[AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])],
[if test x"$withval" != x; then
ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
PLUGIN_LD="$withval"
esac
AC_MSG_CHECKING(what linker to use)
-if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
+if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \
+ || test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then
# Single tree build which includes ld. We want to prefer it
# over whatever linker top-level may have detected, since
# we'll use what we're building after installation anyway.
|| grep 'EMUL = .*linux' ../ld/Makefile \
|| grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
in_tree_ld_is_elf=yes
+ elif test "$ld_is_gold" = yes; then
+ in_tree_ld_is_elf=yes
fi
for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
do
# Solaris 9/x86 as incorrectly emits an alias for a hidden symbol with
# STV_HIDDEN, so disable .hidden support if so.
case "${target}" in
- i?86-*-solaris2*)
+ i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
if test x$gcc_cv_as != x && test x$gcc_cv_objdump != x; then
cat > conftest.s <<EOF
.globl hidden
gcc_cv_as_hidden=yes
;;
esac])
+case "${target}" in
+ *-*-darwin*)
+ # Darwin as has some visibility support, though with a different syntax.
+ gcc_cv_as_hidden=yes
+ ;;
+esac
# gnu_indirect_function type is an extension proposed at
# http://groups.google/com/group/generic-abi/files. It allows dynamic runtime
changequote(,)dnl
if test $in_tree_ld != yes ; then
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
- 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,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ # GNU gold --version looks like this:
+ #
+ # GNU gold (GNU Binutils 2.21.51.20110225) 1.11
+ #
+ # We extract the binutils version which is more familiar and specific
+ # than the gold version.
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
+ else
+ # GNU ld --version looks like this:
+ #
+ # GNU ld (GNU Binutils) 2.21.51.20110225
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
+ fi
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]*\.\([0-9]*\)'`
else
case "${target}" in
*-*-solaris2*)
+ # See acinclude.m4 (gcc_SUN_LD_VERSION) for the version number
+ # format.
#
- # Solaris 2 ld -V output looks like this for a regular version:
- #
- # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699
- #
- # but test versions add stuff at the end:
- #
- # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
- #
+ # Don't reuse gcc_gv_sun_ld_vers_* in case a linker other than
+ # /usr/ccs/bin/ld has been configured.
ld_ver=`$gcc_cv_ld -V 2>&1`
if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
ld_vers=`echo $ld_ver | sed -n \
fi
else
gcc_cv_ld_hidden=yes
- if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ :
+ elif echo "$ld_ver" | grep GNU > /dev/null; then
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
fi
else
case "${target}" in
+ *-*-darwin*)
+ # Darwin ld has some visibility support.
+ gcc_cv_ld_hidden=yes
+ ;;
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
fi
AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
+gcc_AC_INITFINI_ARRAY
+
# Check if we have .[us]leb128, and support symbol arithmetic with it.
gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
[elf,2,11,0],,
gcc_cv_as_cfi_directive=no
else
case "$target" in
- i?86-*-solaris2.1[[0-9]]*)
+ i?86-*-solaris2.1[[0-9]]* | x86_64-*-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 && \
[`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
-gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
+gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)],
+ gcc_cv_as_comdat_group,
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",@progbits,.foo,comdat])
if test $gcc_cv_as_comdat_group = yes; then
gcc_cv_as_comdat_group_percent=no
+ gcc_cv_as_comdat_group_group=no
else
- gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
+ gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)],
+ gcc_cv_as_comdat_group_percent,
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
+ if test $gcc_cv_as_comdat_group_percent = yes; then
+ gcc_cv_as_comdat_group_group=no
+ else
+ case "${target}" in
+ # Sun as uses a completely different syntax.
+ *-*-solaris2*)
+ case "${target}" in
+ sparc*-*-solaris2*)
+ conftest_s='
+ .group foo,".text%foo",#comdat
+ .section ".text%foo", #alloc,#execinstr,#progbits
+ .globl foo
+ foo:
+ '
+ ;;
+ i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
+ conftest_s='
+ .group foo,.text%foo,#comdat
+ .section .text%foo, "ax", @progbits
+ .globl foo
+ foo:
+ '
+ ;;
+ esac
+ gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)],
+ gcc_cv_as_comdat_group_group,
+ ,, [$conftest_s])
+ ;;
+ esac
+ fi
fi
if test x"$ld_is_gold" = xyes; then
comdat_group=yes
changequote(,)dnl
case "${target}" in
*-*-solaris2.1[1-9]*)
+ comdat_group=no
# 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
+ # If using Sun as for COMDAT group as emitted by GCC, one needs at
+ # least ld version 1.2267.
+ if test "$ld_vers_major" -gt 1; then
comdat_group=yes
- else
- comdat_group=no
+ elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then
+ comdat_group=yes
+ elif test "$ld_vers_minor" -ge 2267; then
+ comdat_group=yes
fi
;;
*)
if test $comdat_group = no; then
gcc_cv_as_comdat_group=no
gcc_cv_as_comdat_group_percent=no
+ gcc_cv_as_comdat_group_group=no
fi
AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
- [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
+ [`if test $gcc_cv_as_comdat_group = yes \
+ || test $gcc_cv_as_comdat_group_percent = yes \
+ || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler and linker support COMDAT groups.])
gcc_GAS_CHECK_FEATURE([line table discriminator support],
tls_first_major=2
tls_first_minor=17
;;
- i[34567]86-*-*)
+ i[34567]86-*-* | x86_64-*-solaris2.1[0-9]*)
case "$target" in
i[34567]86-*-solaris2.*)
on_solaris=yes
tga_func=___tls_get_addr
;;
+ x86_64-*-solaris2.1[0-9]*)
+ on_solaris=yes
+ tga_func=__tls_get_addr
+ ;;
*)
on_solaris=no
;;
xor %l1, %tle_lox10(foo), %o5
ld [%g7 + %o5], %o1"
;;
+ tilepro*-*-*)
+ conftest_s='
+ .section ".tdata","awT",@progbits
+foo: .long 25
+ .text
+ addli r0, zero, tls_gd(foo)
+ auli r0, zero, tls_gd_ha16(foo)
+ addli r0, r0, tls_gd_lo16(foo)
+ jal __tls_get_addr
+ addli r0, zero, tls_ie(foo)
+ auli r0, r0, tls_ie_ha16(foo)
+ addli r0, r0, tls_ie_lo16(foo)'
+ tls_first_major=2
+ tls_first_minor=22
+ tls_as_opt="--fatal-warnings"
+ ;;
+ tilegx*-*-*)
+ conftest_s='
+ .section ".tdata","awT",@progbits
+foo: .long 25
+ .text
+ shl16insli r0, zero, hw0_last_tls_gd(foo)
+ shl16insli r0, zero, hw1_last_tls_gd(foo)
+ shl16insli r0, r0, hw0_tls_gd(foo)
+ jal __tls_get_addr
+ shl16insli r0, zero, hw1_last_tls_ie(foo)
+ shl16insli r0, r0, hw0_tls_ie(foo)'
+ tls_first_major=2
+ tls_first_minor=22
+ tls_as_opt="--fatal-warnings"
+ ;;
xtensa*-*-*)
conftest_s='
.section ".tdata","awT",@progbits
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.])
AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
gcc_cv_ld_static_dynamic=no
+gcc_cv_ld_static_option='-Bstatic'
+gcc_cv_ld_dynamic_option='-Bdynamic'
if test $in_tree_ld = yes ; then
if test "$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
- # Check if linker supports -Bstatic/-Bdynamic option
- if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
- && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
- gcc_cv_ld_static_dynamic=yes
+ # Check if linker supports -Bstatic/-Bdynamic option
+ if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
+ && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
+ gcc_cv_ld_static_dynamic=yes
+ else
+ case "$target" in
+ # 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"
+ ;;
+ # 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"
+ ;;
+ # HP-UX ld uses -a flags to select between shared and archive.
+ *-*-hpux*)
+ if test x"$gnu_ld" = xno; then
+ gcc_cv_ld_static_dynamic=yes
+ gcc_cv_ld_static_option="-aarchive_shared"
+ gcc_cv_ld_dynamic_option="-adefault"
fi
+ ;;
+ # IRIX 6 ld supports -Bstatic/-Bdynamic.
+ mips-sgi-irix6*)
+ gcc_cv_ld_static_dynamic=yes
+ ;;
+ # Solaris 2 ld always supports -Bstatic/-Bdynamic.
+ *-*-solaris2*)
+ gcc_cv_ld_static_dynamic=yes
+ ;;
+ esac
+ fi
fi
if test x"$gcc_cv_ld_static_dynamic" = xyes; then
AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
-[Define if your linker supports -Bstatic/-Bdynamic option.])
+[Define if your linker supports -Bstatic/-Bdynamic or equivalent options.])
+ AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option",
+[Define to the linker option to disable use of shared objects.])
+ AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option",
+[Define to the linker option to enable use of shared objects.])
fi
AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
AC_MSG_RESULT($gcc_cv_ld_demangle)
fi
+AC_MSG_CHECKING(linker plugin support)
+gcc_cv_lto_plugin=0
+if test -f liblto_plugin.la; then
+ save_ld_ver="$ld_ver"
+ save_ld_vers_major="$ld_vers_major"
+ save_ld_vers_minor="$ld_vers_minor"
+ save_ld_is_gold="$ld_is_gold"
+
+ ld_is_gold=no
+
+ if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
+ ld_ver="GNU ld"
+ # FIXME: ld_is_gold?
+ ld_vers_major="$gcc_cv_gld_major_version"
+ ld_vers_minor="$gcc_cv_gld_minor_version"
+ else
+ # Determine plugin linker version.
+ # FIXME: Partial duplicate from above, generalize.
+changequote(,)dnl
+ ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q`
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if echo "$ld_ver" | grep "GNU gold" > /dev/null; then
+ ld_is_gold=yes
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
+ else
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
+ fi
+ ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+ ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+ fi
+changequote([,])dnl
+ fi
+
+ # Determine plugin support.
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Require GNU ld or gold 2.21+ for plugin support by default.
+ if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
+ gcc_cv_lto_plugin=2
+ # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20.
+ elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
+ gcc_cv_lto_plugin=1
+ fi
+ fi
+
+ ld_ver="$save_ld_ver"
+ ld_vers_major="$save_ld_vers_major"
+ ld_vers_minor="$save_ld_vers_minor"
+ ld_is_gold="$save_ld_is_gold"
+fi
+AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin,
+ [Define to the level of your linker's plugin support.])
+AC_MSG_RESULT($gcc_cv_lto_plugin)
+
case "$target" in
# All TARGET_ABI_OSF targets.
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
gcc_cv_as_sparc_gotdata_op,,
[-K PIC],
[.text
+.align 4
foo:
nop
bar:
ld [[%l7 + %g1]], %g2, %gdop(foo)],
[if test x$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 $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
- | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
+ if test x$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
+ else
gcc_cv_as_sparc_gotdata_op=yes
- fi
fi
- else
- gcc_cv_as_sparc_gotdata_op=yes
fi
fi
rm -f conftest],
fi],
[AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
[Define if your assembler supports offsetable %lo().])])
+
+ gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions],
+ gcc_cv_as_sparc_fmaf,,
+ [-xarch=v9d],
+ [.text
+ .register %g2, #scratch
+ .register %g3, #scratch
+ .align 4
+ fmaddd %f0, %f2, %f4, %f6
+ addxccc %g1, %g2, %g3
+ fsrl32 %f2, %f4, %f8
+ fnaddd %f10, %f12, %f14],,
+ [AC_DEFINE(HAVE_AS_FMAF_HPC_VIS3, 1,
+ [Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])])
;;
changequote(,)dnl
Cygwin DLL exports wrappers to support libstdc++ function replacement.])
esac
case $target_os in
- cygwin* | pe | mingw32*)
+ cygwin* | pe | mingw32* | interix*)
# 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.
;;
esac
fi
+ # Test if the assembler supports the section flag 'e' for specifying
+ # an excluded section.
+ gcc_GAS_CHECK_FEATURE([.section with e], gcc_cv_as_section_has_e,
+ [2,22,51],,
+[.section foo1,"e"
+.byte 0,0,0,0])
+ AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE,
+ [`if test $gcc_cv_as_section_has_e = yes; then echo 1; else echo 0; fi`],
+ [Define if your assembler supports specifying the section flag e.])
;;
esac
# These two are used unconditionally by i386.[ch]; it is to be defined
# to 1 if the feature is present, 0 otherwise.
+ as_ix86_gotoff_in_data_opt=
+ if test x$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],
+ [$as_ix86_gotoff_in_data_opt],
[ .text
.L0:
nop
[AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
[Define if the assembler supports 'rep <insn>, lock <insn>'.])])
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
+ gcc_cv_as_ix86_tlsgdplt,,,
+ [call tls_gd@tlsgdplt],
+ [if test x$gcc_cv_ld != x \
+ && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+ gcc_cv_as_ix86_tlsgdplt=yes
+ fi
+ rm -f conftest],
+ [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1,
+ [Define if your assembler and linker support @tlsgdplt.])])
+
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc],
+ gcc_cv_as_ix86_tlsldmplt,,,
+ [tls_ld:
+ call tls_ld@tlsldmplt],
+ [if test x$gcc_cv_ld != x \
+ && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+ gcc_cv_as_ix86_tlsldmplt=yes
+ fi
+ rm -f conftest],
+ [AC_DEFINE(HAVE_AS_IX86_TLSLDMPLT, 1,
+ [Define if your assembler and linker support @tlsldmplt.])])
+
;;
ia64*-*-*)
# version to the per-target configury.
case "$cpu_type" in
alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze | mips \
- | pa | rs6000 | score | sparc | spu | xstormy16 | xtensa)
+ | pa | rs6000 | score | sparc | spu | tilegx | tilepro | xstormy16 | xtensa)
insn="nop"
;;
ia64 | s390)
[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],
+ [AS_HELP_STRING([--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.
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]*\.\([0-9]*\)"`
gcc_cv_ld_eh_frame_hdr=yes
fi
elif test x$gcc_cv_ld != x; then
- # Check if linker supports --eh-frame-hdr option
- if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
- gcc_cv_ld_eh_frame_hdr=yes
- fi
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Check if linker supports --eh-frame-hdr option
+ if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
+ gcc_cv_ld_eh_frame_hdr=yes
+ fi
+ else
+ case "$target" in
+ *-*-solaris2*)
+ # Sun ld has various bugs in .eh_frame_hdr support before version 1.2251.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; then
+ gcc_cv_ld_eh_frame_hdr=yes
+ fi
+ ;;
+ esac
+ fi
fi
GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
-[Define if your linker supports --eh-frame-hdr option.])
+[Define if your linker supports .eh_frame_hdr.])
fi
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
fi
AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
+AC_MSG_CHECKING(linker EH garbage collection of sections bug)
+gcc_cv_ld_eh_gc_sections_bug=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_eh_gc_sections_bug=yes
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x -a x$gcc_cv_as_comdat_group = xyes; then
+ gcc_cv_ld_eh_gc_sections_bug=yes
+ cat > conftest.s <<EOF
+ .section .text
+.globl _start
+ .type _start, @function
+_start:
+ .long foo
+ .size _start, .-_start
+ .section .text.startup.foo,"ax",@progbits
+ .type foo, @function
+foo:
+ .long 0
+ .size foo, .-foo
+ .section .gcc_except_table.foo,"a",@progbits
+.L0:
+ .long 0
+ .section .eh_frame,"a",@progbits
+ .long .L0
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
+ if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
+ | grep "gc-sections option ignored" > /dev/null; then
+ :
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
+ gcc_cv_ld_eh_gc_sections_bug=no
+ fi
+ fi
+ rm -f conftest.s conftest.o conftest
+fi
+if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then
+ AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1,
+ [Define if your linker has buggy garbage collection of
+ sections support when .text.startup.foo like sections are used.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug)
+
# --------
# UNSORTED
# --------
fi
case "$target:$tm_file" in
- powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+ powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+ case "$target" in
+ *-*-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 $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
gcc_cv_ld_large_toc=yes
fi
rm -f conftest conftest.o conftest.s
fi
AC_ARG_ENABLE(linker-build-id,
-[ --enable-linker-build-id
- compiler will always pass --build-id to linker],
+[AS_HELP_STRING([--enable-linker-build-id],
+ [compiler will always pass --build-id to linker])],
[],
enable_linker_build_id=no)
[Define to PREFIX/include if cpp should also search that directory.])
fi
+if test x$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)
- if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
- if test "x$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"
- elif test "x$with_sysroot" = xyes; then
- glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
- else
- glibc_header_dir="${with_sysroot}/usr/include"
- fi
- else
- glibc_header_dir=/usr/include
- fi
[# 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 \
+ if test -f $target_header_dir/features.h \
&& $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
- $glibc_header_dir/features.h > /dev/null; then
+ $target_header_dir/features.h > /dev/null; then
if $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
- $glibc_header_dir/features.h > /dev/null; then
+ $target_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
elif $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+2' \
- $glibc_header_dir/features.h > /dev/null \
+ $target_header_dir/features.h > /dev/null \
&& $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
- $glibc_header_dir/features.h > /dev/null; then
+ $target_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
elif $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
- $glibc_header_dir/features.h > /dev/null && \
- test -f $glibc_header_dir/bits/uClibc_config.h && \
+ $target_header_dir/features.h > /dev/null && \
+ test -f $target_header_dir/bits/uClibc_config.h && \
$EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
- $glibc_header_dir/bits/uClibc_config.h > /dev/null; then
+ $target_header_dir/bits/uClibc_config.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
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*)
[Define if your target C library provides stack protector support])
fi
+# Test for <sys/sdt.h> on the target.
+GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
+AC_MSG_CHECKING(sys/sdt.h in the target C library)
+have_sys_sdt_h=no
+if test -f $target_header_dir/sys/sdt.h; then
+ have_sys_sdt_h=yes
+ AC_DEFINE(HAVE_SYS_SDT_H, 1,
+ [Define if your target C library provides sys/sdt.h])
+fi
+AC_MSG_RESULT($have_sys_sdt_h)
+
# Check if TFmode long double should be used by default or not.
# Some glibc targets used DFmode long double, but with glibc 2.4
# and later they can use TFmode.
case "$target" in
powerpc*-*-linux* | \
- powerpc*-*-gnu* | \
sparc*-*-linux* | \
s390*-*-linux* | \
alpha*-*-linux*)
AC_ARG_WITH(long-double-128,
-[ --with-long-double-128 Use 128-bit long double by default.],
+ [AS_HELP_STRING([--with-long-double-128],
+ [use 128-bit long double by default])],
gcc_cv_target_ldbl128="$with_long_double_128",
[[gcc_cv_target_ldbl128=no
- 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"
- elif test "x$with_build_sysroot" != "x"; then
- glibc_header_dir="${with_build_sysroot}/usr/include"
- elif test "x$with_sysroot" = xyes; then
- glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
- else
- glibc_header_dir="${with_sysroot}/usr/include"
- fi
- else
- glibc_header_dir=/usr/include
- fi
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
- $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
+ $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
]])
;;
[Define if TFmode long double should be the default])
fi
+AC_MSG_CHECKING(dl_iterate_phdr in target C library)
+gcc_cv_target_dl_iterate_phdr=unknown
+case "$target" in
+ # Restrict to Solaris 11+. While most of the Solaris 11 linker changes
+ # were backported to Solaris 10 Update 10, dl_iterate_phdr only lives in
+ # libdl there, both complicating its use and breaking compatibility
+ # between Solaris 10 updates.
+ *-*-solaris2.1[[1-9]]*)
+ # <link.h> needs both a dl_iterate_phdr declaration and support for
+ # compilation with largefile support.
+ if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \
+ && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then
+ gcc_cv_target_dl_iterate_phdr=yes
+ else
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
+esac
+GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+ AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1,
+[Define if your target C library provides the `dl_iterate_phdr' function.])
+fi
+AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr)
+
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
-[ --with-gc={page,zone} choose the garbage collection mechanism to use
- with the compiler],
+[AS_HELP_STRING([--with-gc={page,zone}],
+ [choose the garbage collection mechanism to use
+ with the compiler])],
[case "$withval" in
page)
GGC=ggc-$withval
zlibdir=-L../zlib
zlibinc="-I\$(srcdir)/../zlib"
AC_ARG_WITH(system-zlib,
-[ --with-system-zlib use installed libz],
+[AS_HELP_STRING([--with-system-zlib], [use installed libz])],
zlibdir=
zlibinc=
)
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
dnl maintainer-mode is disabled by default
AC_ARG_ENABLE(maintainer-mode,
-[ --enable-maintainer-mode
- enable make rules and dependencies not useful
- (and sometimes confusing) to the casual installer],
+[AS_HELP_STRING([--enable-maintainer-mode],
+ [enable make rules and dependencies not useful
+ (and sometimes confusing) to the casual installer])],
maintainer_mode=$enableval,
maintainer_mode=no)
# Find a directory in which to install a shared libgcc.
AC_ARG_ENABLE(version-specific-runtime-libs,
-[ --enable-version-specific-runtime-libs
- specify that runtime libraries should be
- installed in a compiler-specific directory])
-
-AC_ARG_WITH(slibdir,
-[ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
-slibdir="$with_slibdir",
-if test "${enable_version_specific_runtime_libs+set}" = set; then
- slibdir='$(libsubdir)'
-elif test "$host" != "$target"; then
- slibdir='$(build_tooldir)/lib'
-else
- slibdir='$(libdir)'
-fi)
-AC_SUBST(slibdir)
+[AS_HELP_STRING([--enable-version-specific-runtime-libs],
+ [specify that runtime libraries should be
+ installed in a compiler-specific directory])])
# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(user_headers_inc_next_post)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
-AC_SUBST(extra_parts)
AC_SUBST(extra_passes)
AC_SUBST(extra_programs)
AC_SUBST(float_h_file)
AC_SUBST(gcc_config_arguments)
AC_SUBST(gcc_gxx_include_dir)
+AC_SUBST(gcc_gxx_include_dir_add_sysroot)
AC_SUBST(host_exeext)
AC_SUBST(host_xm_file_list)
AC_SUBST(host_xm_include_list)
AC_SUBST(objc_boehm_gc)
AC_SUBST(out_file)
AC_SUBST(out_object_file)
-AC_SUBST(thread_file)
+AC_SUBST(common_out_file)
+AC_SUBST(common_out_object_file)
AC_SUBST(tm_file_list)
AC_SUBST(tm_include_list)
AC_SUBST(tm_defines)
# Check for plugin support
AC_ARG_ENABLE(plugin,
-[ --enable-plugin enable plugin support],
+[AS_HELP_STRING([--enable-plugin], [enable plugin support])],
enable_plugin=$enableval,
enable_plugin=yes; default_plugin=yes)
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
AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
fi
+
+AC_ARG_ENABLE(libquadmath-support,
+[AS_HELP_STRING([--disable-libquadmath-support],
+ [disable libquadmath support for Fortran])],
+ENABLE_LIBQUADMATH_SUPPORT=$enableval,
+ENABLE_LIBQUADMATH_SUPPORT=yes)
+if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then
+ AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1,
+ [Define to 1 to enable libquadmath support])
+fi
+
+
+# Specify what hash style to use by default.
+AC_ARG_WITH([linker-hash-style],
+[AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}],
+ [specify the linker hash style])],
+[case x"$withval" in
+ xsysv)
+ LINKER_HASH_STYLE=sysv
+ ;;
+ xgnu)
+ LINKER_HASH_STYLE=gnu
+ ;;
+ xboth)
+ LINKER_HASH_STYLE=both
+ ;;
+ *)
+ AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style])
+ ;;
+ esac],
+[LINKER_HASH_STYLE=''])
+if test x"${LINKER_HASH_STYLE}" != x; then
+ AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE",
+ [The linker hash style])
+fi
+
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
echo > cstamp-h ;;
esac
# Make sure all the subdirs exist.
-for d in $subdirs doc build c-family
+for d in $subdirs doc build common c-family
do
test -d $d || mkdir $d
done
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