4b7a526411
* configure.ac (gcc_cv_as_powerpc_mfcrf, gcc_cv_as_machine_directive):
Detangle.
From-SVN: r232697
6138 lines
189 KiB
Plaintext
6138 lines
189 KiB
Plaintext
# configure.ac for GCC
|
|
# Process this file with autoconf to generate a configuration script.
|
|
|
|
# Copyright (C) 1997-2016 Free Software Foundation, Inc.
|
|
|
|
#This file is part of GCC.
|
|
|
|
#GCC is free software; you can redistribute it and/or modify it under
|
|
#the terms of the GNU General Public License as published by the Free
|
|
#Software Foundation; either version 3, or (at your option) any later
|
|
#version.
|
|
|
|
#GCC is distributed in the hope that it will be useful, but WITHOUT
|
|
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
#for more details.
|
|
|
|
#You should have received a copy of the GNU General Public License
|
|
#along with GCC; see the file COPYING3. If not see
|
|
#<http://www.gnu.org/licenses/>.
|
|
|
|
# --------------------------------
|
|
# Initialization and sanity checks
|
|
# --------------------------------
|
|
|
|
AC_PREREQ(2.64)
|
|
AC_INIT
|
|
AC_CONFIG_SRCDIR(tree.c)
|
|
AC_CONFIG_HEADER(auto-host.h:config.in)
|
|
|
|
gcc_version=`cat $srcdir/BASE-VER`
|
|
|
|
# Determine the host, build, and target systems
|
|
AC_CANONICAL_BUILD
|
|
AC_CANONICAL_HOST
|
|
AC_CANONICAL_TARGET
|
|
|
|
# Determine the noncanonical target name, for directory use.
|
|
ACX_NONCANONICAL_TARGET
|
|
|
|
# Used for constructing correct paths for offload compilers.
|
|
real_target_noncanonical=${target_noncanonical}
|
|
accel_dir_suffix=
|
|
|
|
# Determine the target- and build-specific subdirectories
|
|
GCC_TOPLEV_SUBDIRS
|
|
|
|
# Set program_transform_name
|
|
AC_ARG_PROGRAM
|
|
|
|
# Check for bogus environment variables.
|
|
# Test if LIBRARY_PATH contains the notation for the current directory
|
|
# since this would lead to problems installing/building glibc.
|
|
# LIBRARY_PATH contains the current directory if one of the following
|
|
# is true:
|
|
# - one of the terminals (":" and ";") is the first or last sign
|
|
# - two terminals occur directly after each other
|
|
# - the path contains an element with a dot in it
|
|
AC_MSG_CHECKING(LIBRARY_PATH variable)
|
|
changequote(,)dnl
|
|
case ${LIBRARY_PATH} in
|
|
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
|
|
library_path_setting="contains current directory"
|
|
;;
|
|
*)
|
|
library_path_setting="ok"
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
AC_MSG_RESULT($library_path_setting)
|
|
if test "$library_path_setting" != "ok"; then
|
|
AC_MSG_ERROR([
|
|
*** LIBRARY_PATH shouldn't contain the current directory when
|
|
*** building gcc. Please change the environment variable
|
|
*** and run configure again.])
|
|
fi
|
|
|
|
# Test if GCC_EXEC_PREFIX contains the notation for the current directory
|
|
# since this would lead to problems installing/building glibc.
|
|
# GCC_EXEC_PREFIX contains the current directory if one of the following
|
|
# is true:
|
|
# - one of the terminals (":" and ";") is the first or last sign
|
|
# - two terminals occur directly after each other
|
|
# - the path contains an element with a dot in it
|
|
AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
|
|
changequote(,)dnl
|
|
case ${GCC_EXEC_PREFIX} in
|
|
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
|
|
gcc_exec_prefix_setting="contains current directory"
|
|
;;
|
|
*)
|
|
gcc_exec_prefix_setting="ok"
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
AC_MSG_RESULT($gcc_exec_prefix_setting)
|
|
if test "$gcc_exec_prefix_setting" != "ok"; then
|
|
AC_MSG_ERROR([
|
|
*** GCC_EXEC_PREFIX shouldn't contain the current directory when
|
|
*** building gcc. Please change the environment variable
|
|
*** and run configure again.])
|
|
fi
|
|
|
|
# -----------
|
|
# Directories
|
|
# -----------
|
|
|
|
# Specify the local prefix
|
|
local_prefix=
|
|
AC_ARG_WITH(local-prefix,
|
|
[AS_HELP_STRING([--with-local-prefix=DIR],
|
|
[specifies directory to put local include])],
|
|
[case "${withval}" in
|
|
yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
|
|
no) ;;
|
|
*) local_prefix=$with_local_prefix ;;
|
|
esac])
|
|
|
|
# Default local prefix if it is empty
|
|
if test x$local_prefix = x; then
|
|
local_prefix=/usr/local
|
|
fi
|
|
|
|
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,
|
|
[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)
|
|
|
|
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])],
|
|
[
|
|
case ${with_sysroot} in
|
|
/) ;;
|
|
*/) with_sysroot=`echo $with_sysroot | sed 's,/$,,'` ;;
|
|
esac
|
|
case ${with_sysroot} in
|
|
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
|
|
*) TARGET_SYSTEM_ROOT=$with_sysroot ;;
|
|
esac
|
|
|
|
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
|
|
CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
|
|
case ${TARGET_SYSTEM_ROOT} in
|
|
"${test_prefix}"|"${test_prefix}/"*|\
|
|
"${test_exec_prefix}"|"${test_exec_prefix}/"*|\
|
|
'${prefix}'|'${prefix}/'*|\
|
|
'${exec_prefix}'|'${exec_prefix}/'*)
|
|
t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
|
|
TARGET_SYSTEM_ROOT_DEFINE="$t"
|
|
;;
|
|
esac
|
|
], [
|
|
TARGET_SYSTEM_ROOT=
|
|
TARGET_SYSTEM_ROOT_DEFINE=
|
|
CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
|
|
])
|
|
AC_SUBST(TARGET_SYSTEM_ROOT)
|
|
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
|
|
AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
|
|
|
|
# Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
|
|
# passed in by the toplevel make and thus we'd get different behavior
|
|
# depending on where we built the sources.
|
|
gcc_gxx_include_dir=
|
|
# Specify the g++ header file directory
|
|
AC_ARG_WITH(gxx-include-dir,
|
|
[AS_HELP_STRING([--with-gxx-include-dir=DIR],
|
|
[specifies directory to put g++ header files])],
|
|
[case "${withval}" in
|
|
yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
|
|
no) ;;
|
|
*) gcc_gxx_include_dir=$with_gxx_include_dir ;;
|
|
esac])
|
|
|
|
# This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
|
|
if test x${gcc_gxx_include_dir} = x; then
|
|
if test x${enable_version_specific_runtime_libs} = xyes; then
|
|
gcc_gxx_include_dir='${libsubdir}/include/c++'
|
|
else
|
|
libstdcxx_incdir='include/c++/$(version)'
|
|
if test x$host != x$target; then
|
|
libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
|
|
fi
|
|
gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
|
|
fi
|
|
fi
|
|
|
|
gcc_gxx_include_dir_add_sysroot=0
|
|
if test "${with_sysroot+set}" = set; then
|
|
gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
|
|
if test "${gcc_gxx_without_sysroot}"; then
|
|
if test x${with_sysroot} != x/; then
|
|
gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
|
|
fi
|
|
gcc_gxx_include_dir_add_sysroot=1
|
|
fi
|
|
fi
|
|
|
|
AC_ARG_WITH(cpp_install_dir,
|
|
[AC_HELP_STRING([--with-cpp-install-dir=DIR],
|
|
[install the user visible C preprocessor in DIR
|
|
(relative to PREFIX) as well as PREFIX/bin])],
|
|
[if test x$withval = xyes; then
|
|
AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
|
|
elif test x$withval != xno; then
|
|
cpp_install_dir=$withval
|
|
fi])
|
|
|
|
# We would like to our source tree to be readonly. However when releases or
|
|
# pre-releases are generated, the flex/bison generated files as well as the
|
|
# various formats of manuals need to be included along with the rest of the
|
|
# sources. Therefore we have --enable-generated-files-in-srcdir to do
|
|
# just that.
|
|
|
|
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,
|
|
[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=$enableval,
|
|
generated_files_in_srcdir=no)
|
|
|
|
AC_MSG_RESULT($generated_files_in_srcdir)
|
|
|
|
if test "$generated_files_in_srcdir" = "yes"; then
|
|
GENINSRC=''
|
|
else
|
|
GENINSRC='#'
|
|
fi
|
|
AC_SUBST(GENINSRC)
|
|
|
|
# -------------------
|
|
# Find default linker
|
|
# -------------------
|
|
|
|
# With GNU ld
|
|
AC_ARG_WITH(gnu-ld,
|
|
[AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])],
|
|
gnu_ld_flag="$with_gnu_ld",
|
|
gnu_ld_flag=no)
|
|
|
|
# With pre-defined ld
|
|
AC_ARG_WITH(ld,
|
|
[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
|
|
AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
|
|
elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
|
|
gnu_ld_flag=yes
|
|
fi
|
|
AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
|
|
[Define to enable the use of a default linker.])
|
|
fi
|
|
|
|
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
|
|
AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
|
|
else
|
|
AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
|
|
fi
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
|
|
# With demangler in GNU ld
|
|
AC_ARG_WITH(demangler-in-ld,
|
|
[AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])],
|
|
demangler_in_ld="$with_demangler_in_ld",
|
|
demangler_in_ld=yes)
|
|
|
|
# ----------------------
|
|
# Find default assembler
|
|
# ----------------------
|
|
|
|
# With GNU as
|
|
AC_ARG_WITH(gnu-as,
|
|
[AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])],
|
|
gas_flag="$with_gnu_as",
|
|
gas_flag=no)
|
|
|
|
AC_ARG_WITH(as,
|
|
[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
|
|
AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
|
|
elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
|
|
gas_flag=yes
|
|
fi
|
|
AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
|
|
[Define to enable the use of a default assembler.])
|
|
fi
|
|
|
|
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
|
|
AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
|
|
else
|
|
AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
|
|
fi
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
|
|
# ---------------
|
|
# Find C compiler
|
|
# ---------------
|
|
|
|
# If a non-executable a.out is present (e.g. created by GNU as above even if
|
|
# invoked with -v only), the IRIX 6 native ld just overwrites the existing
|
|
# file, even when creating an executable, so an execution test fails.
|
|
# Remove possible default executable files to avoid this.
|
|
#
|
|
# FIXME: This really belongs into AC_PROG_CC and can be removed once
|
|
# Autoconf includes it.
|
|
rm -f a.out a.exe b.out
|
|
|
|
# Find the native compiler
|
|
AC_PROG_CC
|
|
AC_PROG_CXX
|
|
ACX_PROG_GNAT([-I"$srcdir"/ada])
|
|
|
|
# Do configure tests with the C++ compiler, since that's what we build with.
|
|
AC_LANG(C++)
|
|
|
|
# Remove the -O2: for historical reasons, unless bootstrapping we prefer
|
|
# optimizations to be activated explicitly by the toplevel.
|
|
case "$CC" in
|
|
*/prev-gcc/xgcc*) ;;
|
|
*) CFLAGS=`echo "$CFLAGS " | sed -e "s/-Ofast[[ ]]//" -e "s/-O[[gs]][[ ]]//" -e "s/-O[[0-9]]*[[ ]]//" `
|
|
CXXFLAGS=`echo "$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
|
|
AC_SUBST(PICFLAG_FOR_TARGET)
|
|
|
|
# -------------------------
|
|
# Check C compiler features
|
|
# -------------------------
|
|
|
|
AC_USE_SYSTEM_EXTENSIONS
|
|
AC_PROG_CPP
|
|
AC_C_INLINE
|
|
|
|
AC_SYS_LARGEFILE
|
|
|
|
# sizeof(char) is 1 by definition.
|
|
AC_CHECK_SIZEOF(void *)
|
|
AC_CHECK_SIZEOF(short)
|
|
AC_CHECK_SIZEOF(int)
|
|
AC_CHECK_SIZEOF(long)
|
|
AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
|
|
GCC_STDINT_TYPES
|
|
if test x"$ac_cv_c_uint64_t" = x"no" -o x"$ac_cv_c_int64_t" = x"no"; then
|
|
AC_MSG_ERROR([uint64_t or int64_t not found])
|
|
fi
|
|
|
|
# check what underlying integer type int64_t uses
|
|
AC_CACHE_CHECK(for int64_t underlying type, ac_cv_int64_t_type, [
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#ifdef HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#endif
|
|
template <typename T> struct X { };
|
|
template <>
|
|
struct X<long> { typedef long t; };
|
|
]], [[X<int64_t>::t x;]])],[ac_cv_int64_t_type=long],[ac_cv_int64_t_type="long long"])])
|
|
if test "$ac_cv_int64_t_type" = "long"; then
|
|
AC_DEFINE(INT64_T_IS_LONG, 1,
|
|
[Define if int64_t uses long as underlying type.])
|
|
else
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#ifdef HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#endif
|
|
template <typename T> struct X { };
|
|
template <>
|
|
struct X<long long> { typedef long long t; };
|
|
]], [[X<int64_t>::t x;]])],[],[AC_MSG_ERROR([error verifying int64_t uses long long])])
|
|
fi
|
|
|
|
# Check whether compiler is affected by placement new aliasing bug (PR 29286).
|
|
# If the host compiler is affected by the bug, and we build with optimization
|
|
# enabled (which happens e.g. when cross-compiling), the pool allocator may
|
|
# get miscompiled. Use -fno-strict-aliasing to work around this problem.
|
|
# Since there is no reliable feature check for the presence of this bug,
|
|
# we simply use a GCC version number check. (This should never trigger for
|
|
# stages 2 or 3 of a native bootstrap.)
|
|
aliasing_flags=
|
|
if test "$GCC" = yes; then
|
|
saved_CXXFLAGS="$CXXFLAGS"
|
|
|
|
# The following test compilation will succeed if and only if $CXX accepts
|
|
# -fno-strict-aliasing *and* is older than GCC 4.3.
|
|
CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
|
|
AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug])
|
|
AC_COMPILE_IFELSE([
|
|
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
|
|
#error compiler not affected by placement new aliasing bug
|
|
#endif
|
|
],
|
|
[AC_MSG_RESULT([yes]); aliasing_flags='-fno-strict-aliasing'],
|
|
[AC_MSG_RESULT([no])])
|
|
|
|
CXXFLAGS="$saved_CXXFLAGS"
|
|
fi
|
|
AC_SUBST(aliasing_flags)
|
|
|
|
|
|
|
|
# ---------------------
|
|
# Warnings and checking
|
|
# ---------------------
|
|
|
|
# Check $CC warning features (if it's GCC).
|
|
# We want to use -pedantic, but we don't want warnings about
|
|
# * 'long long'
|
|
# * variadic macros
|
|
# * overlong strings
|
|
# * 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_CXX_WARNING_OPTS(
|
|
m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt])), [loose_warn])
|
|
ACX_PROG_CC_WARNING_OPTS(
|
|
m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
|
|
[c_loose_warn])
|
|
ACX_PROG_CXX_WARNING_OPTS(
|
|
m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
|
|
ACX_PROG_CXX_WARNING_OPTS(
|
|
m4_quote(m4_do([-Woverloaded-virtual])), [strict_warn])
|
|
ACX_PROG_CC_WARNING_OPTS(
|
|
m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
|
|
ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC(
|
|
m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ],
|
|
[-Wno-overlength-strings])), [strict_warn])
|
|
ACX_PROG_CXX_WARNINGS_ARE_ERRORS([manual], [strict_warn])
|
|
|
|
# The above macros do nothing if the compiler is not GCC. However, the
|
|
# Makefile has more goo to add other flags, so these variables are used
|
|
# to enable warnings only for GCC.
|
|
warn_cflags=
|
|
warn_cxxflags=
|
|
if test "x$GCC" = "xyes"; then
|
|
warn_cflags='$(GCC_WARN_CFLAGS)'
|
|
warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
|
|
fi
|
|
AC_SUBST(warn_cflags)
|
|
AC_SUBST(warn_cxxflags)
|
|
|
|
# Disable exceptions and RTTI if building with g++
|
|
ACX_PROG_CC_WARNING_OPTS(
|
|
m4_quote(m4_do([-fno-exceptions -fno-rtti -fasynchronous-unwind-tables])),
|
|
[noexception_flags])
|
|
|
|
# Enable expensive internal checks
|
|
is_release=
|
|
if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
|
|
is_release=yes
|
|
fi
|
|
|
|
AC_ARG_ENABLE(checking,
|
|
[AS_HELP_STRING([[--enable-checking[=LIST]]],
|
|
[enable expensive run-time checks. With LIST,
|
|
enable only specific categories of checks.
|
|
Categories are: yes,no,all,none,release.
|
|
Flags are: assert,df,fold,gc,gcac,gimple,misc,
|
|
rtlflag,rtl,runtime,tree,valgrind,types])],
|
|
[ac_checking_flags="${enableval}"],[
|
|
# Determine the default checks.
|
|
if test x$is_release = x ; then
|
|
ac_checking_flags=yes
|
|
else
|
|
ac_checking_flags=release
|
|
fi])
|
|
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
|
|
for check in release $ac_checking_flags
|
|
do
|
|
case $check in
|
|
# these set all the flags to specific states
|
|
yes) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ;
|
|
ac_fold_checking= ; ac_gc_checking=1 ;
|
|
ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ;
|
|
ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
|
|
ac_tree_checking=1 ; ac_valgrind_checking= ;
|
|
ac_types_checking=1 ;;
|
|
no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
|
|
ac_fold_checking= ; ac_gc_checking= ;
|
|
ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
|
|
ac_rtlflag_checking= ; ac_runtime_checking= ;
|
|
ac_tree_checking= ; ac_valgrind_checking= ;
|
|
ac_types_checking= ;;
|
|
all) ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
|
|
ac_fold_checking=1 ; ac_gc_checking=1 ;
|
|
ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ;
|
|
ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
|
|
ac_tree_checking=1 ; ac_valgrind_checking= ;
|
|
ac_types_checking=1 ;;
|
|
release) ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
|
|
ac_fold_checking= ; ac_gc_checking= ;
|
|
ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
|
|
ac_rtlflag_checking= ; ac_runtime_checking=1 ;
|
|
ac_tree_checking= ; ac_valgrind_checking= ;
|
|
ac_types_checking= ;;
|
|
# these enable particular checks
|
|
assert) ac_assert_checking=1 ;;
|
|
df) ac_df_checking=1 ;;
|
|
fold) ac_fold_checking=1 ;;
|
|
gc) ac_gc_checking=1 ;;
|
|
gcac) ac_gc_always_collect=1 ;;
|
|
gimple) ac_gimple_checking=1 ;;
|
|
misc) ac_checking=1 ;;
|
|
rtl) ac_rtl_checking=1 ;;
|
|
rtlflag) ac_rtlflag_checking=1 ;;
|
|
runtime) ac_runtime_checking=1 ;;
|
|
tree) ac_tree_checking=1 ;;
|
|
types) ac_types_checking=1 ;;
|
|
valgrind) ac_valgrind_checking=1 ;;
|
|
*) AC_MSG_ERROR(unknown check category $check) ;;
|
|
esac
|
|
done
|
|
IFS="$ac_save_IFS"
|
|
|
|
nocommon_flag=""
|
|
if test x$ac_checking != x ; then
|
|
AC_DEFINE(CHECKING_P, 1,
|
|
[Define to 1 if you want more run-time sanity checks. This one gets a grab
|
|
bag of miscellaneous but relatively cheap checks.])
|
|
nocommon_flag=-fno-common
|
|
else
|
|
AC_DEFINE(CHECKING_P, 0)
|
|
fi
|
|
AC_SUBST(nocommon_flag)
|
|
if test x$ac_df_checking != x ; then
|
|
AC_DEFINE(ENABLE_DF_CHECKING, 1,
|
|
[Define if you want more run-time sanity checks for dataflow.])
|
|
fi
|
|
if test x$ac_assert_checking != x ; then
|
|
AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
|
|
[Define if you want assertions enabled. This is a cheap check.])
|
|
fi
|
|
if test x$ac_gimple_checking != x ; then
|
|
AC_DEFINE(ENABLE_GIMPLE_CHECKING, 1,
|
|
[Define if you want operations on GIMPLE (the basic data structure of
|
|
the high-level optimizers) to be checked for dynamic type safety at
|
|
runtime. This is moderately expensive.])
|
|
fi
|
|
GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
|
|
if test x$ac_runtime_checking != x ; then
|
|
AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
|
|
[Define if you want runtime assertions enabled. This is a cheap check.])
|
|
fi
|
|
if test x$ac_tree_checking != x ; then
|
|
AC_DEFINE(ENABLE_TREE_CHECKING, 1,
|
|
[Define if you want all operations on trees (the basic data
|
|
structure of the front ends) to be checked for dynamic type safety
|
|
at runtime. This is moderately expensive.
|
|
])
|
|
TREECHECKING=yes
|
|
fi
|
|
if test x$ac_types_checking != x ; then
|
|
AC_DEFINE(ENABLE_TYPES_CHECKING, 1,
|
|
[Define if you want all gimple types to be verified after gimplifiation.
|
|
This is cheap.
|
|
])
|
|
fi
|
|
AC_SUBST(TREECHECKING)
|
|
if test x$ac_rtl_checking != x ; then
|
|
AC_DEFINE(ENABLE_RTL_CHECKING, 1,
|
|
[Define if you want all operations on RTL (the basic data structure
|
|
of the optimizer and back end) to be checked for dynamic type safety
|
|
at runtime. This is quite expensive.])
|
|
fi
|
|
if test x$ac_rtlflag_checking != x ; then
|
|
AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
|
|
[Define if you want RTL flag accesses to be checked against the RTL
|
|
codes that are supported for each access macro. This is relatively
|
|
cheap.])
|
|
fi
|
|
if test x$ac_gc_checking != x ; then
|
|
AC_DEFINE(ENABLE_GC_CHECKING, 1,
|
|
[Define if you want the garbage collector to do object poisoning and
|
|
other memory allocation checks. This is quite expensive.])
|
|
fi
|
|
if test x$ac_gc_always_collect != x ; then
|
|
AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
|
|
[Define if you want the garbage collector to operate in maximally
|
|
paranoid mode, validating the entire heap and collecting garbage at
|
|
every opportunity. This is extremely expensive.])
|
|
fi
|
|
if test x$ac_fold_checking != x ; then
|
|
AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
|
|
[Define if you want fold checked that it never destructs its argument.
|
|
This is quite expensive.])
|
|
fi
|
|
valgrind_path_defines=
|
|
valgrind_command=
|
|
|
|
dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
|
|
dnl # an if statement. This was the source of very frustrating bugs
|
|
dnl # in converting to autoconf 2.5x!
|
|
AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
|
|
|
|
# It is certainly possible that there's valgrind but no valgrind.h.
|
|
# GCC relies on making annotations so we must have both.
|
|
AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
|
|
AC_PREPROC_IFELSE([AC_LANG_SOURCE(
|
|
[[#include <valgrind/memcheck.h>
|
|
#ifndef VALGRIND_DISCARD
|
|
#error VALGRIND_DISCARD not defined
|
|
#endif]])],
|
|
[gcc_cv_header_valgrind_memcheck_h=yes],
|
|
[gcc_cv_header_valgrind_memcheck_h=no])
|
|
AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
|
|
AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
|
|
AC_PREPROC_IFELSE([AC_LANG_SOURCE(
|
|
[[#include <memcheck.h>
|
|
#ifndef VALGRIND_DISCARD
|
|
#error VALGRIND_DISCARD not defined
|
|
#endif]])],
|
|
[gcc_cv_header_memcheck_h=yes],
|
|
[gcc_cv_header_memcheck_h=no])
|
|
AC_MSG_RESULT($gcc_cv_header_memcheck_h)
|
|
if test $gcc_cv_header_valgrind_memcheck_h = yes; then
|
|
AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
|
|
[Define if valgrind's valgrind/memcheck.h header is installed.])
|
|
fi
|
|
if test $gcc_cv_header_memcheck_h = yes; then
|
|
AC_DEFINE(HAVE_MEMCHECK_H, 1,
|
|
[Define if valgrind's memcheck.h header is installed.])
|
|
fi
|
|
|
|
if test x$ac_valgrind_checking != x ; then
|
|
AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
|
|
[$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
|
|
if test "x$valgrind_path" = "x" \
|
|
|| (test $have_valgrind_h = no \
|
|
&& test $gcc_cv_header_memcheck_h = no \
|
|
&& test $gcc_cv_header_valgrind_memcheck_h = no); then
|
|
AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
|
|
fi
|
|
valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
|
|
valgrind_command="$valgrind_path -q"
|
|
AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
|
|
[Define if you want to run subprograms and generated programs
|
|
through valgrind (a memory checker). This is extremely expensive.])
|
|
fi
|
|
AC_SUBST(valgrind_path_defines)
|
|
AC_SUBST(valgrind_command)
|
|
|
|
# Enable code coverage collection
|
|
AC_ARG_ENABLE(coverage,
|
|
[AS_HELP_STRING([[--enable-coverage[=LEVEL]]],
|
|
[enable compiler's code coverage collection.
|
|
Use to measure compiler performance and locate
|
|
unused parts of the compiler. With LEVEL, specify
|
|
optimization. Values are opt, noopt,
|
|
default is noopt])],
|
|
[case "${enableval}" in
|
|
yes|noopt)
|
|
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
|
|
;;
|
|
opt)
|
|
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
|
|
;;
|
|
no)
|
|
# a.k.a. --disable-coverage
|
|
coverage_flags=""
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR(unknown coverage setting $enableval)
|
|
;;
|
|
esac],
|
|
[coverage_flags=""])
|
|
AC_SUBST(coverage_flags)
|
|
|
|
AC_ARG_ENABLE(gather-detailed-mem-stats,
|
|
[AS_HELP_STRING([--enable-gather-detailed-mem-stats],
|
|
[enable detailed memory allocation stats gathering])], [],
|
|
[enable_gather_detailed_mem_stats=no])
|
|
gather_stats=`if test $enable_gather_detailed_mem_stats != no; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(GATHER_STATISTICS, $gather_stats,
|
|
[Define to enable detailed memory allocation stats gathering.])
|
|
|
|
AC_ARG_ENABLE(valgrind-annotations,
|
|
[AS_HELP_STRING([--enable-valgrind-annotations],
|
|
[enable valgrind runtime interaction])], [],
|
|
[enable_valgrind_annotations=no])
|
|
if test x$enable_valgrind_annotations != xno \
|
|
|| test x$ac_valgrind_checking != x; then
|
|
if (test $have_valgrind_h = no \
|
|
&& test $gcc_cv_header_memcheck_h = no \
|
|
&& test $gcc_cv_header_valgrind_memcheck_h = no); then
|
|
AC_MSG_ERROR([*** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h])
|
|
fi
|
|
AC_DEFINE(ENABLE_VALGRIND_ANNOTATIONS, 1,
|
|
[Define to get calls to the valgrind runtime enabled.])
|
|
fi
|
|
|
|
# -------------------------------
|
|
# Miscenalleous configure options
|
|
# -------------------------------
|
|
|
|
# With stabs
|
|
AC_ARG_WITH(stabs,
|
|
[AS_HELP_STRING([--with-stabs],
|
|
[arrange to use stabs instead of host debug format])],
|
|
stabs="$with_stabs",
|
|
stabs=no)
|
|
|
|
# Determine whether or not multilibs are enabled.
|
|
AC_ARG_ENABLE(multilib,
|
|
[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,
|
|
[AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
|
|
[], [])
|
|
|
|
# Enable C extension for decimal float if target supports it.
|
|
GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
|
|
|
|
dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
|
|
[Define to 1 to enable decimal float extension to C.])
|
|
|
|
# Use default_decimal_float for dependency.
|
|
enable_decimal_float=$default_decimal_float
|
|
|
|
bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
|
|
[Define to 1 to specify that we are using the BID decimal floating
|
|
point format instead of DPD])
|
|
|
|
# Enable C extension for fixed-point arithmetic.
|
|
AC_ARG_ENABLE(fixed-point,
|
|
[AS_HELP_STRING([--enable-fixed-point],
|
|
[enable fixed-point arithmetic extension to C])],
|
|
[],
|
|
[
|
|
case $target in
|
|
arm*)
|
|
enable_fixed_point=yes
|
|
;;
|
|
|
|
mips*-*-*)
|
|
enable_fixed_point=yes
|
|
;;
|
|
*)
|
|
AC_MSG_WARN([fixed-point is not supported for this target, ignored])
|
|
enable_fixed_point=no
|
|
;;
|
|
esac
|
|
])
|
|
AC_SUBST(enable_fixed_point)
|
|
|
|
fixedpoint=`if test $enable_fixed_point = yes; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(ENABLE_FIXED_POINT, $fixedpoint,
|
|
[Define to 1 to enable fixed-point arithmetic extension to C.])
|
|
|
|
# Enable threads
|
|
# Pass with no value to take the default
|
|
# Pass with a value to specify a thread package
|
|
AC_ARG_ENABLE(threads,
|
|
[AS_HELP_STRING([[--enable-threads[=LIB]]],
|
|
[enable thread usage for target GCC,
|
|
using LIB thread package])],,
|
|
[enable_threads=''])
|
|
|
|
AC_ARG_ENABLE(tls,
|
|
[AS_HELP_STRING([--enable-tls],
|
|
[enable or disable generation of tls code
|
|
overriding the assembler check for tls support])],
|
|
[
|
|
case $enable_tls in
|
|
yes | no) ;;
|
|
*) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
|
|
Valid choices are 'yes' and 'no'.]) ;;
|
|
esac
|
|
], [enable_tls=''])
|
|
|
|
AC_ARG_ENABLE(objc-gc,
|
|
[AS_HELP_STRING([--enable-objc-gc],
|
|
[enable the use of Boehm's garbage collector with
|
|
the GNU Objective-C runtime])],
|
|
if test x$enable_objc_gc = xno; then
|
|
objc_boehm_gc=''
|
|
else
|
|
objc_boehm_gc=1
|
|
fi,
|
|
objc_boehm_gc='')
|
|
|
|
AC_ARG_WITH(dwarf2,
|
|
[AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])],
|
|
dwarf2="$with_dwarf2",
|
|
dwarf2=no)
|
|
|
|
AC_ARG_ENABLE(shared,
|
|
[AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])],
|
|
[
|
|
case $enable_shared in
|
|
yes | no) ;;
|
|
*)
|
|
enable_shared=no
|
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
|
|
for pkg in $enableval; do
|
|
if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
|
|
enable_shared=yes
|
|
fi
|
|
done
|
|
IFS="$ac_save_ifs"
|
|
;;
|
|
esac
|
|
], [enable_shared=yes])
|
|
AC_SUBST(enable_shared)
|
|
|
|
AC_ARG_WITH(specs,
|
|
[AS_HELP_STRING([--with-specs=SPECS],
|
|
[add SPECS to driver command-line processing])],
|
|
[CONFIGURE_SPECS=$withval],
|
|
[CONFIGURE_SPECS=]
|
|
)
|
|
AC_SUBST(CONFIGURE_SPECS)
|
|
|
|
ACX_PKGVERSION([GCC])
|
|
ACX_BUGURL([http://gcc.gnu.org/bugs.html])
|
|
|
|
# Sanity check enable_languages in case someone does not run the toplevel
|
|
# configure # script.
|
|
AC_ARG_ENABLE(languages,
|
|
[AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])],
|
|
[case ,${enable_languages}, in
|
|
,,|,yes,)
|
|
# go safe -- we cannot be much sure without the toplevel
|
|
# configure's
|
|
# analysis of which target libs are present and usable
|
|
enable_languages=c
|
|
;;
|
|
*,all,*)
|
|
AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
|
|
;;
|
|
*,c,*)
|
|
;;
|
|
*)
|
|
enable_languages=c,${enable_languages}
|
|
;;
|
|
esac],
|
|
[enable_languages=c])
|
|
|
|
if test x"$enable_as_accelerator_for" != x; then
|
|
AC_DEFINE(ACCEL_COMPILER, 1,
|
|
[Define if this compiler should be built as the offload target compiler.])
|
|
enable_as_accelerator=yes
|
|
case "${target}" in
|
|
*-intelmicemul-*)
|
|
# In this case we expect offload compiler to be built as native, so we
|
|
# need to rename the driver to avoid clashes with host's drivers.
|
|
program_transform_name="s&^&${target}-&" ;;
|
|
esac
|
|
sedscript="s#${target_noncanonical}#${enable_as_accelerator_for}-accel-${target_noncanonical}#"
|
|
program_transform_name=`echo $program_transform_name | sed $sedscript`
|
|
accel_dir_suffix=/accel/${target_noncanonical}
|
|
real_target_noncanonical=${enable_as_accelerator_for}
|
|
fi
|
|
AC_SUBST(enable_as_accelerator)
|
|
AC_SUBST(real_target_noncanonical)
|
|
AC_SUBST(accel_dir_suffix)
|
|
|
|
for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do
|
|
tgt=`echo $tgt | sed 's/=.*//'`
|
|
|
|
if echo "$tgt" | grep "^hsa" > /dev/null ; then
|
|
enable_hsa=1
|
|
else
|
|
enable_offloading=1
|
|
fi
|
|
|
|
if test x"$offload_targets" = x; then
|
|
offload_targets=$tgt
|
|
else
|
|
offload_targets="$offload_targets,$tgt"
|
|
fi
|
|
done
|
|
AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
|
|
[Define to offload targets, separated by commas.])
|
|
if test x"$enable_offloading" != x; then
|
|
AC_DEFINE(ENABLE_OFFLOADING, 1,
|
|
[Define this to enable support for offloading.])
|
|
else
|
|
AC_DEFINE(ENABLE_OFFLOADING, 0,
|
|
[Define this to enable support for offloading.])
|
|
fi
|
|
|
|
if test x"$enable_hsa" = x1 ; then
|
|
AC_DEFINE(ENABLE_HSA, 1,
|
|
[Define this to enable support for generating HSAIL.])
|
|
fi
|
|
|
|
AC_ARG_WITH(multilib-list,
|
|
[AS_HELP_STRING([--with-multilib-list], [select multilibs (AArch64, SH and x86-64 only)])],
|
|
:,
|
|
with_multilib_list=default)
|
|
|
|
# -------------------------
|
|
# Checks for other programs
|
|
# -------------------------
|
|
|
|
AC_PROG_MAKE_SET
|
|
|
|
# Find some useful tools
|
|
AC_PROG_AWK
|
|
# We need awk to create options.c and options.h.
|
|
# Bail out if it's missing.
|
|
case ${AWK} in
|
|
"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
|
|
esac
|
|
|
|
gcc_AC_PROG_LN_S
|
|
ACX_PROG_LN($LN_S)
|
|
AC_PROG_RANLIB
|
|
ranlib_flags=""
|
|
AC_SUBST(ranlib_flags)
|
|
|
|
gcc_AC_PROG_INSTALL
|
|
|
|
# See if cmp has --ignore-initial.
|
|
gcc_AC_PROG_CMP_IGNORE_INITIAL
|
|
|
|
# See if we have the mktemp command.
|
|
AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
|
|
|
|
# See if makeinfo has been installed and is modern enough
|
|
# that we can use it.
|
|
ACX_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
|
|
[GNU texinfo.* \([0-9][0-9.]*\)],
|
|
[4.[7-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
|
|
if test $gcc_cv_prog_makeinfo_modern = no; then
|
|
AC_MSG_WARN([
|
|
*** Makeinfo is missing or too old.
|
|
*** Info documentation will not be built.])
|
|
BUILD_INFO=
|
|
else
|
|
BUILD_INFO=info
|
|
fi
|
|
AC_SUBST(BUILD_INFO)
|
|
|
|
# Is pod2man recent enough to regenerate manpages?
|
|
AC_MSG_CHECKING([for recent Pod::Man])
|
|
if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
|
|
AC_MSG_RESULT(yes)
|
|
GENERATED_MANPAGES=generated-manpages
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
GENERATED_MANPAGES=
|
|
fi
|
|
AC_SUBST(GENERATED_MANPAGES)
|
|
|
|
MISSING="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing"
|
|
|
|
# How about lex?
|
|
dnl Don't use AC_PROG_LEX; we insist on flex.
|
|
dnl LEXLIB is not useful in gcc.
|
|
AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
|
|
|
|
# Bison?
|
|
AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
|
|
|
|
# Binutils are not build modules, unlike bison/flex/makeinfo. So we
|
|
# check for build == host before using them.
|
|
|
|
# NM
|
|
if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
|
|
&& test -d ../binutils ; then
|
|
NM='${objdir}/../binutils/nm-new'
|
|
else
|
|
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
|
|
fi
|
|
|
|
# AR
|
|
if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
|
|
&& test -d ../binutils ; then
|
|
AR='${objdir}/../binutils/ar'
|
|
else
|
|
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
|
|
fi
|
|
|
|
# The jit documentation looks better if built with sphinx, but can be
|
|
# built with texinfo if sphinx is not available.
|
|
# Set "doc_build_sys" to "sphinx" or "texinfo" accordingly.
|
|
AC_CHECK_PROG(doc_build_sys, sphinx-build, sphinx, texinfo)
|
|
|
|
# --------------------
|
|
# Checks for C headers
|
|
# --------------------
|
|
|
|
# Need to reject headers which give warnings, so that the -Werror bootstrap
|
|
# works later. *sigh* This needs to come before all header checks.
|
|
AC_PROG_CPP_WERROR
|
|
|
|
AC_HEADER_STDC
|
|
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 ftw.h unistd.h sys/file.h sys/time.h sys/mman.h \
|
|
sys/resource.h sys/param.h sys/times.h sys/stat.h \
|
|
direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
|
|
|
|
# Check for thread headers.
|
|
AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
|
|
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
|
|
|
|
# These tests can't be done till we know if we have limits.h.
|
|
gcc_AC_C_CHAR_BIT
|
|
AC_C_BIGENDIAN
|
|
|
|
# ----------------------
|
|
# Checks for C++ headers
|
|
# ----------------------
|
|
|
|
dnl Autoconf will give an error in the configure script if there is no
|
|
dnl C++ preprocessor. Hack to prevent that.
|
|
m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl
|
|
AC_PROG_CXXCPP
|
|
m4_popdef([AC_MSG_ERROR])[]dnl
|
|
|
|
AC_CHECK_HEADERS(unordered_map)
|
|
AC_CHECK_HEADERS(tr1/unordered_map)
|
|
AC_CHECK_HEADERS(ext/hash_map)
|
|
|
|
# --------
|
|
# Dependency checking.
|
|
# --------
|
|
|
|
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=$DEPDIR])
|
|
|
|
ZW_PROG_COMPILER_DEPENDENCIES([CXX])
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
|
|
# These libraries may be used by collect2.
|
|
# We may need a special search path to get them linked.
|
|
AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
|
|
[save_LIBS="$LIBS"
|
|
for libs in '' -lld -lmld \
|
|
'-L/usr/lib/cmplrs/cc2.11 -lmld' \
|
|
'-L/usr/lib/cmplrs/cc3.11 -lmld'
|
|
do
|
|
LIBS="$libs"
|
|
AC_TRY_LINK_FUNC(ldopen,
|
|
[gcc_cv_collect2_libs="$libs"; break])
|
|
done
|
|
LIBS="$save_LIBS"
|
|
test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
|
|
case $gcc_cv_collect2_libs in
|
|
"none required") ;;
|
|
*) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
|
|
esac
|
|
AC_SUBST(COLLECT2_LIBS)
|
|
|
|
# When building Ada code on Alpha, we need exc_resume which is usually in
|
|
# -lexc. So test for it.
|
|
save_LIBS="$LIBS"
|
|
LIBS=
|
|
AC_SEARCH_LIBS(exc_resume, exc)
|
|
GNAT_LIBEXC="$LIBS"
|
|
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="$LIBS"
|
|
LIBS=
|
|
AC_SEARCH_LIBS(ldexp, m)
|
|
LDEXP_LIB="$LIBS"
|
|
LIBS="$save_LIBS"
|
|
AC_SUBST(LDEXP_LIB)
|
|
|
|
# Use <inttypes.h> only if it exists,
|
|
# doesn't clash with <sys/types.h>, declares intmax_t and defines
|
|
# PRId64
|
|
AC_MSG_CHECKING(for inttypes.h)
|
|
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[[#define __STDC_FORMAT_MACROS
|
|
#include <sys/types.h>
|
|
#include <inttypes.h>]],
|
|
[[intmax_t i = -1;
|
|
#ifndef PRId64
|
|
choke me
|
|
#endif]])],
|
|
[gcc_cv_header_inttypes_h=yes],
|
|
[gcc_cv_header_inttypes_h=no])])
|
|
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
|
|
if test $gcc_cv_header_inttypes_h = yes; then
|
|
AC_DEFINE(HAVE_INTTYPES_H, 1,
|
|
[Define if you have a working <inttypes.h> header file.])
|
|
fi
|
|
|
|
dnl Disabled until we have a complete test for buggy enum bitfields.
|
|
dnl gcc_AC_C_ENUM_BF_UNSIGNED
|
|
|
|
define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
|
|
ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
|
|
fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
|
|
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
|
|
putchar_unlocked putc_unlocked)
|
|
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \
|
|
popen sysconf strsignal getrusage nl_langinfo \
|
|
gettimeofday mbstowcs wcswidth mmap setlocale \
|
|
gcc_UNLOCKED_FUNCS madvise)
|
|
|
|
if test x$ac_cv_func_mbstowcs = xyes; then
|
|
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
|
|
[ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
|
|
int main()
|
|
{
|
|
mbstowcs(0, "", 0);
|
|
return 0;
|
|
}]])],
|
|
[gcc_cv_func_mbstowcs_works=yes],
|
|
[gcc_cv_func_mbstowcs_works=no],
|
|
[gcc_cv_func_mbstowcs_works=yes])])
|
|
if test x$gcc_cv_func_mbstowcs_works = xyes; then
|
|
AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
|
|
[Define this macro if mbstowcs does not crash when its
|
|
first argument is NULL.])
|
|
fi
|
|
fi
|
|
|
|
AC_CHECK_TYPE(ssize_t, int)
|
|
AC_CHECK_TYPE(caddr_t, char *)
|
|
|
|
GCC_AC_FUNC_MMAP_BLACKLIST
|
|
|
|
case "${host}" in
|
|
*-*-*vms*)
|
|
# Under VMS, vfork works very differently than on Unix. The standard test
|
|
# won't work, and it isn't easily adaptable. It makes more sense to
|
|
# just force it.
|
|
ac_cv_func_vfork_works=yes
|
|
;;
|
|
esac
|
|
AC_FUNC_FORK
|
|
|
|
AM_ICONV
|
|
|
|
# Until we have in-tree GNU iconv:
|
|
LIBICONV_DEP=
|
|
if test -f "$LTLIBICONV"; then
|
|
LIBICONV_DEP=$LTLIBICONV
|
|
fi
|
|
AC_SUBST(LIBICONV_DEP)
|
|
|
|
AM_LC_MESSAGES
|
|
|
|
AM_LANGINFO_CODESET
|
|
|
|
# We will need to find libiberty.h and ansidecl.h
|
|
saved_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
|
|
saved_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
|
|
|
|
# gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the
|
|
# normal autoconf function for these. But force definition of
|
|
# HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre
|
|
# basename handling in libiberty.h.
|
|
AC_CHECK_DECLS([basename(const char*), strstr(const char*,const char*)], , ,[
|
|
#undef HAVE_DECL_BASENAME
|
|
#define HAVE_DECL_BASENAME 1
|
|
#include "ansidecl.h"
|
|
#include "system.h"])
|
|
|
|
gcc_AC_CHECK_DECLS(getenv atol atoll asprintf sbrk abort atof getcwd getwd \
|
|
madvise stpcpy strnlen strsignal strverscmp \
|
|
strtol strtoul strtoll strtoull setenv unsetenv \
|
|
errno snprintf vsnprintf vasprintf malloc realloc calloc \
|
|
free getopt clock getpagesize ffs gcc_UNLOCKED_FUNCS, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"])
|
|
|
|
gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_RESOURCE_H
|
|
#include <sys/resource.h>
|
|
#endif
|
|
])
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_RESOURCE_H
|
|
#include <sys/resource.h>
|
|
#endif
|
|
]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
|
|
[Define to `long' if <sys/resource.h> doesn't define.])])
|
|
|
|
# On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
|
|
# FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
|
|
# in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
|
|
# to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
|
|
gcc_AC_CHECK_DECLS(ldgetname, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_LDFCN_H
|
|
#undef FREAD
|
|
#undef FWRITE
|
|
#include <ldfcn.h>
|
|
#endif
|
|
])
|
|
|
|
gcc_AC_CHECK_DECLS(times, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
])
|
|
|
|
gcc_AC_CHECK_DECLS(sigaltstack, , ,[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#include <signal.h>
|
|
])
|
|
|
|
# More time-related stuff.
|
|
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
|
|
if test $ac_cv_struct_tms = yes; then
|
|
AC_DEFINE(HAVE_STRUCT_TMS, 1,
|
|
[Define if <sys/times.h> defines struct tms.])
|
|
fi
|
|
|
|
# use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
|
|
# revisit after autoconf 2.50.
|
|
AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
|
|
#include "ansidecl.h"
|
|
#include "system.h"
|
|
]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
|
|
if test $gcc_cv_type_clock_t = yes; then
|
|
AC_DEFINE(HAVE_CLOCK_T, 1,
|
|
[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"
|
|
|
|
# mkdir takes a single argument on some systems.
|
|
gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
|
|
|
|
# File extensions
|
|
manext='.1'
|
|
objext='.o'
|
|
AC_SUBST(manext)
|
|
AC_SUBST(objext)
|
|
|
|
# With Setjmp/Longjmp based exception handling.
|
|
AC_ARG_ENABLE(sjlj-exceptions,
|
|
[AS_HELP_STRING([--enable-sjlj-exceptions],
|
|
[arrange to use setjmp/longjmp exception handling])],
|
|
[case $target in
|
|
*-*-hpux10*)
|
|
if test $enableval != yes; then
|
|
AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced])
|
|
enableval=yes
|
|
fi
|
|
;;
|
|
esac
|
|
force_sjlj_exceptions=yes],
|
|
[case $target in
|
|
*-*-hpux10*)
|
|
force_sjlj_exceptions=yes
|
|
enableval=yes
|
|
;;
|
|
lm32*-*-*)
|
|
force_sjlj_exceptions=yes
|
|
enableval=yes
|
|
;;
|
|
*)
|
|
force_sjlj_exceptions=no
|
|
;;
|
|
esac])
|
|
if test $force_sjlj_exceptions = yes; then
|
|
sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
|
|
AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
|
|
[Define 0/1 to force the choice for exception handling model.])
|
|
fi
|
|
|
|
# --------------------------------------------------------
|
|
# Build, host, and target specific configuration fragments
|
|
# --------------------------------------------------------
|
|
|
|
# Collect build-machine-specific information.
|
|
. ${srcdir}/config.build
|
|
|
|
# Collect host-machine-specific information.
|
|
. ${srcdir}/config.host
|
|
|
|
target_gtfiles=
|
|
|
|
# Collect target-machine-specific information.
|
|
. ${srcdir}/config.gcc
|
|
|
|
extra_objs="${host_extra_objs} ${extra_objs}"
|
|
extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
|
|
|
|
# Default the target-machine variables that were not explicitly set.
|
|
if test x"$tm_file" = x
|
|
then tm_file=$cpu_type/$cpu_type.h; fi
|
|
|
|
if test x"$extra_headers" = x
|
|
then extra_headers=; fi
|
|
|
|
if test x$md_file = x
|
|
then md_file=$cpu_type/$cpu_type.md; fi
|
|
|
|
if test x$out_file = x
|
|
then out_file=$cpu_type/$cpu_type.c; fi
|
|
|
|
if test x"$tmake_file" = x
|
|
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
|
|
|
|
# Say what files are being used for the output code and MD file.
|
|
echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
|
|
echo "Using \`$srcdir/config/$md_file' as machine description file."
|
|
|
|
# If any of the xm_file variables contain nonexistent files, warn
|
|
# about them and drop them.
|
|
|
|
bx=
|
|
for x in $build_xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then bx="$bx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
build_xm_file="$bx"
|
|
|
|
hx=
|
|
for x in $host_xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then hx="$hx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
host_xm_file="$hx"
|
|
|
|
tx=
|
|
for x in $xm_file; do
|
|
if test -f $srcdir/config/$x
|
|
then tx="$tx $x"
|
|
else AC_MSG_WARN($srcdir/config/$x does not exist.)
|
|
fi
|
|
done
|
|
xm_file="$tx"
|
|
|
|
count=a
|
|
for f in $tm_file; do
|
|
count=${count}x
|
|
done
|
|
if test $count = ax; then
|
|
echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
|
|
else
|
|
echo "Using the following target machine macro files:"
|
|
for f in $tm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
fi
|
|
|
|
if test x$use_long_long_for_widest_fast_int = xyes; then
|
|
AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
|
|
[Define to 1 if the 'long long' type is wider than 'long' but still
|
|
efficiently supported by the host hardware.])
|
|
fi
|
|
|
|
gnu_ld_bool=`if test x"$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
|
|
done
|
|
if test $count = a; then
|
|
:
|
|
elif test $count = ax; then
|
|
echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
|
|
else
|
|
echo "Using the following host machine macro files:"
|
|
for f in $host_xm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
fi
|
|
echo "Using ${out_host_hook_obj} for host machine hooks."
|
|
|
|
if test "$host_xm_file" != "$build_xm_file"; then
|
|
count=a
|
|
for f in $build_xm_file; do
|
|
count=${count}x
|
|
done
|
|
if test $count = a; then
|
|
:
|
|
elif test $count = ax; then
|
|
echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
|
|
else
|
|
echo "Using the following build machine macro files:"
|
|
for f in $build_xm_file; do
|
|
echo " $srcdir/config/$f"
|
|
done
|
|
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],
|
|
gcc_cv_mcontext_underscores,
|
|
AC_COMPILE_IFELSE([
|
|
#include <sys/cdefs.h>
|
|
#include <sys/signal.h>
|
|
#include <ucontext.h>
|
|
int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
|
|
],
|
|
gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
|
|
if test $gcc_cv_mcontext_underscores = yes; then
|
|
AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
|
|
[mcontext_t fields start with __])
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# ---------
|
|
# Threading
|
|
# ---------
|
|
|
|
# Check if a valid thread package
|
|
case ${enable_threads} in
|
|
"" | no)
|
|
# No threads
|
|
target_thread_file='single'
|
|
;;
|
|
yes)
|
|
# default
|
|
target_thread_file='single'
|
|
;;
|
|
aix | dce | lynx | mipssde | posix | rtems | \
|
|
single | tpf | vxworks | win32)
|
|
target_thread_file=${enable_threads}
|
|
;;
|
|
*)
|
|
echo "${enable_threads} is an unknown thread package" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
if test x${thread_file} = x; then
|
|
# No thread file set by target-specific clauses in config.gcc,
|
|
# so use file chosen by default logic above
|
|
thread_file=${target_thread_file}
|
|
fi
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
use_cxa_atexit=no
|
|
if test x$enable___cxa_atexit = xyes || \
|
|
test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
|
|
if test x$host = x$target; then
|
|
case $host in
|
|
# mingw32 doesn't have __cxa_atexit but uses atexit registration
|
|
# keyed to flag_use_cxa_atexit
|
|
*-*-mingw32*)
|
|
use_cxa_atexit=yes
|
|
;;
|
|
powerpc-ibm-aix*)
|
|
use_cxa_atexit=yes
|
|
;;
|
|
*)
|
|
AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
|
|
[echo "__cxa_atexit can't be enabled on this target"])
|
|
;;
|
|
esac
|
|
else
|
|
# We can't check for __cxa_atexit when building a cross, so assume
|
|
# it is available
|
|
use_cxa_atexit=yes
|
|
fi
|
|
if test x$use_cxa_atexit = xyes; then
|
|
AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
|
|
[Define if you want to use __cxa_atexit, rather than atexit, to
|
|
register C++ destructors for local statics and global objects.
|
|
This is essential for fully standards-compliant handling of
|
|
destructors, but requires __cxa_atexit in libc.])
|
|
fi
|
|
fi
|
|
|
|
# Look for a file containing extra machine modes.
|
|
if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
|
|
extra_modes_file='$(srcdir)'/config/${extra_modes}
|
|
AC_SUBST(extra_modes_file)
|
|
AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
|
|
[Define to the name of a file containing a list of extra machine modes
|
|
for this architecture.])
|
|
fi
|
|
|
|
# Convert extra_options into a form suitable for Makefile use.
|
|
extra_opt_files=
|
|
all_opt_files=
|
|
for f in $extra_options; do
|
|
extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
|
|
all_opt_files="$all_opt_files $srcdir/config/$f"
|
|
done
|
|
AC_SUBST(extra_opt_files)
|
|
|
|
# auto-host.h is the file containing items generated by autoconf and is
|
|
# the first file included by config.h.
|
|
# If host=build, it is correct to have bconfig include auto-host.h
|
|
# as well. If host!=build, we are in error and need to do more
|
|
# work to find out the build config parameters.
|
|
if test x$host = x$build
|
|
then
|
|
build_auto=auto-host.h
|
|
else
|
|
# We create a subdir, then run autoconf in the subdir.
|
|
# To prevent recursion we set host and build for the new
|
|
# invocation of configure to the build for this invocation
|
|
# of configure.
|
|
tempdir=build.$$
|
|
rm -rf $tempdir
|
|
mkdir $tempdir
|
|
cd $tempdir
|
|
case ${srcdir} in
|
|
/* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
|
|
*) realsrcdir=../${srcdir};;
|
|
esac
|
|
# Clearing GMPINC is necessary to prevent host headers being
|
|
# used by the build compiler. Defining GENERATOR_FILE stops
|
|
# system.h from including gmp.h.
|
|
CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
|
|
CXX="${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
|
|
|
|
# We just finished tests for the build machine, so rename
|
|
# the file auto-build.h in the gcc directory.
|
|
mv auto-host.h ../auto-build.h
|
|
cd ..
|
|
rm -rf $tempdir
|
|
build_auto=auto-build.h
|
|
fi
|
|
AC_SUBST(build_subdir)
|
|
|
|
tm_file="${tm_file} defaults.h"
|
|
tm_p_file="${tm_p_file} tm-preds.h"
|
|
host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
|
|
build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
|
|
# We don't want ansidecl.h in target files, write code there in ISO/GNU C.
|
|
# put this back in temporarily.
|
|
xm_file="auto-host.h ansidecl.h ${xm_file}"
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
changequote(,)dnl
|
|
# Compile in configure arguments.
|
|
if test -f configargs.h ; then
|
|
# Being re-configured.
|
|
gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
|
|
gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
|
|
else
|
|
gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
|
|
fi
|
|
|
|
# Double all backslashes and backslash all quotes to turn
|
|
# gcc_config_arguments into a C string.
|
|
sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
|
|
$gcc_config_arguments
|
|
EOF
|
|
gcc_config_arguments_str=`cat conftest.out`
|
|
rm -f conftest.out
|
|
|
|
cat > configargs.h <<EOF
|
|
/* Generated automatically. */
|
|
static const char configuration_arguments[] = "$gcc_config_arguments_str";
|
|
static const char thread_model[] = "$thread_file";
|
|
|
|
static const struct {
|
|
const char *name, *value;
|
|
} configure_default_options[] = $configure_default_options;
|
|
EOF
|
|
changequote([,])dnl
|
|
|
|
changequote(,)dnl
|
|
gcc_BASEVER=`cat $srcdir/BASE-VER`
|
|
gcc_DEVPHASE=`cat $srcdir/DEV-PHASE`
|
|
gcc_DATESTAMP=`cat $srcdir/DATESTAMP`
|
|
if test -f $srcdir/REVISION ; then
|
|
gcc_REVISION=`cat $srcdir/REVISION`
|
|
else
|
|
gcc_REVISION=""
|
|
fi
|
|
cat > plugin-version.h <<EOF
|
|
#include "configargs.h"
|
|
|
|
#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";
|
|
static char revision[] = "$gcc_REVISION";
|
|
|
|
/* FIXME plugins: We should make the version information more precise.
|
|
One way to do is to add a checksum. */
|
|
|
|
static struct plugin_gcc_version gcc_version = {basever, datestamp,
|
|
devphase, revision,
|
|
configuration_arguments};
|
|
EOF
|
|
changequote([,])dnl
|
|
|
|
# Internationalization
|
|
ZW_GNU_GETTEXT_SISTER_DIR
|
|
|
|
# If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
|
|
# -liconv on the link line twice.
|
|
case "$LIBINTL" in *$LIBICONV*)
|
|
LIBICONV= ;;
|
|
esac
|
|
|
|
AC_ARG_ENABLE(secureplt,
|
|
[AS_HELP_STRING([--enable-secureplt],
|
|
[enable -msecure-plt by default for PowerPC])],
|
|
[], [])
|
|
|
|
AC_ARG_ENABLE(leading-mingw64-underscores,
|
|
AS_HELP_STRING([--enable-leading-mingw64-underscores],
|
|
[enable leading underscores on 64 bit mingw targets]),
|
|
[],[])
|
|
AS_IF([ test x"$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,
|
|
[AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [],
|
|
[enable_cld=no])
|
|
|
|
AC_ARG_ENABLE(frame-pointer,
|
|
[AS_HELP_STRING([--enable-frame-pointer],
|
|
[enable -fno-omit-frame-pointer by default for 32bit x86])], [],
|
|
[
|
|
case $target_os in
|
|
linux* | darwin[[8912]]*)
|
|
# Enable -fomit-frame-pointer by default for Linux and Darwin with
|
|
# DWARF2.
|
|
enable_frame_pointer=no
|
|
;;
|
|
*)
|
|
enable_frame_pointer=yes
|
|
;;
|
|
esac
|
|
])
|
|
|
|
# Windows32 Registry support for specifying GCC installation paths.
|
|
AC_ARG_ENABLE(win32-registry,
|
|
[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 $host_os in
|
|
win32 | pe | cygwin* | mingw32*)
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
|
|
fi
|
|
|
|
if test "x$enable_win32_registry" != xno; then
|
|
AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
|
|
[Define to 1 if installation paths should be looked up in the Windows
|
|
Registry. Ignored on non-Windows hosts.])
|
|
|
|
if test "x$enable_win32_registry" != xyes \
|
|
&& test "x$enable_win32_registry" != x; then
|
|
AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
|
|
[Define to be the last component of the Windows registry key under which
|
|
to look for installation paths. The full key used will be
|
|
HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
|
|
The default is the GCC version number.])
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# Get an absolute path to the GCC top-level source directory
|
|
holddir=`${PWDCMD-pwd}`
|
|
cd $srcdir
|
|
topdir=`${PWDCMD-pwd}`
|
|
cd $holddir
|
|
|
|
# Conditionalize the makefile for this host machine.
|
|
xmake_file=
|
|
for f in ${host_xmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
xmake_file="${xmake_file} \$(srcdir)/config/$f"
|
|
fi
|
|
done
|
|
|
|
# Conditionalize the makefile for this target machine.
|
|
tmake_file_=
|
|
for f in ${tmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
|
fi
|
|
done
|
|
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"
|
|
for f in $tm_file; do
|
|
case $f in
|
|
./* )
|
|
f=`echo $f | sed 's/^..//'`
|
|
tm_file_list="${tm_file_list} $f"
|
|
tm_include_list="${tm_include_list} $f"
|
|
;;
|
|
defaults.h )
|
|
tm_file_list="${tm_file_list} \$(srcdir)/$f"
|
|
tm_include_list="${tm_include_list} $f"
|
|
;;
|
|
* )
|
|
tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
|
|
tm_include_list="${tm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
tm_p_file_list=
|
|
tm_p_include_list=
|
|
for f in $tm_p_file; do
|
|
case $f in
|
|
tm-preds.h )
|
|
tm_p_file_list="${tm_p_file_list} $f"
|
|
tm_p_include_list="${tm_p_include_list} $f"
|
|
;;
|
|
* )
|
|
tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
|
|
tm_p_include_list="${tm_p_include_list} config/$f"
|
|
esac
|
|
done
|
|
|
|
xm_file_list=
|
|
xm_include_list=
|
|
for f in $xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
|
|
xm_include_list="${xm_include_list} $f"
|
|
;;
|
|
auto-host.h )
|
|
xm_file_list="${xm_file_list} $f"
|
|
xm_include_list="${xm_include_list} $f"
|
|
;;
|
|
* )
|
|
xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
|
|
xm_include_list="${xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
host_xm_file_list=
|
|
host_xm_include_list=
|
|
for f in $host_xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
|
|
host_xm_include_list="${host_xm_include_list} $f"
|
|
;;
|
|
auto-host.h )
|
|
host_xm_file_list="${host_xm_file_list} $f"
|
|
host_xm_include_list="${host_xm_include_list} $f"
|
|
;;
|
|
* )
|
|
host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
|
|
host_xm_include_list="${host_xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
build_xm_file_list=
|
|
for f in $build_xm_file; do
|
|
case $f in
|
|
ansidecl.h )
|
|
build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
|
|
build_xm_include_list="${build_xm_include_list} $f"
|
|
;;
|
|
auto-build.h | auto-host.h )
|
|
build_xm_file_list="${build_xm_file_list} $f"
|
|
build_xm_include_list="${build_xm_include_list} $f"
|
|
;;
|
|
* )
|
|
build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
|
|
build_xm_include_list="${build_xm_include_list} config/$f"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
# Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
|
|
# cross-compiler which does not use the native headers and libraries.
|
|
# Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
|
|
CROSS= AC_SUBST(CROSS)
|
|
ALL=all.internal AC_SUBST(ALL)
|
|
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
|
|
|
|
if test "x$with_build_sysroot" != x; then
|
|
build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
else
|
|
# This value is used, even on a native system, because
|
|
# CROSS_SYSTEM_HEADER_DIR is just
|
|
# $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
|
|
build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
|
|
fi
|
|
|
|
if test x$host != x$target
|
|
then
|
|
CROSS="-DCROSS_DIRECTORY_STRUCTURE"
|
|
ALL=all.cross
|
|
SYSTEM_HEADER_DIR=$build_system_header_dir
|
|
case "$host","$target" in
|
|
# Darwin crosses can use the host system's libraries and headers,
|
|
# because of the fat library support. Of course, it must be the
|
|
# same version of Darwin on both sides. Allow the user to
|
|
# just say --target=foo-darwin without a version number to mean
|
|
# "the version on this system".
|
|
*-*-darwin*,*-*-darwin*)
|
|
hostos=`echo $host | sed 's/.*-darwin/darwin/'`
|
|
targetos=`echo $target | sed 's/.*-darwin/darwin/'`
|
|
if test $hostos = $targetos -o $targetos = darwin ; then
|
|
CROSS=
|
|
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
|
|
with_headers=yes
|
|
fi
|
|
;;
|
|
|
|
i?86-*-*,x86_64-*-* \
|
|
| powerpc*-*-*,powerpc64*-*-*)
|
|
CROSS="$CROSS -DNATIVE_CROSS" ;;
|
|
esac
|
|
|
|
case $target in
|
|
*-*-mingw*)
|
|
if test "x$with_headers" = x; then
|
|
with_headers=yes
|
|
fi
|
|
;;
|
|
*)
|
|
;;
|
|
esac
|
|
elif test "x$TARGET_SYSTEM_ROOT" != x; then
|
|
SYSTEM_HEADER_DIR=$build_system_header_dir
|
|
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
|
|
|
|
# If this is a cross-compiler that does not
|
|
# have its own set of headers then define
|
|
# inhibit_libc
|
|
|
|
# If this is using newlib, without having the headers available now,
|
|
# then define inhibit_libc in LIBGCC2_CFLAGS.
|
|
# This prevents libgcc2 from containing any code which requires libc
|
|
# support.
|
|
: ${inhibit_libc=false}
|
|
if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
|
|
test x$with_newlib = xyes ; } &&
|
|
{ test "x$with_headers" = xno || test ! -f "$target_header_dir/stdio.h"; } ; then
|
|
inhibit_libc=true
|
|
fi
|
|
AC_SUBST(inhibit_libc)
|
|
|
|
# When building gcc with a cross-compiler, we need to adjust things so
|
|
# that the generator programs are still built with the native compiler.
|
|
# Also, we cannot run fixincludes.
|
|
|
|
# These are the normal (build=host) settings:
|
|
CC_FOR_BUILD='$(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)
|
|
|
|
BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)' AC_SUBST(BUILD_NO_PIE_CFLAGS)
|
|
BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)' AC_SUBST(BUILD_NO_PIE_FLAG)
|
|
|
|
# And these apply if build != host, or we are generating coverage data
|
|
if test x$build != x$host || test "x$coverage_flags" != x
|
|
then
|
|
BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
|
|
BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)'
|
|
BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
|
|
|
|
NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}}
|
|
NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}}
|
|
BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)'
|
|
BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)'
|
|
fi
|
|
AC_SUBST(NO_PIE_CFLAGS_FOR_BUILD)
|
|
AC_SUBST(NO_PIE_FLAG_FOR_BUILD)
|
|
|
|
# Expand extra_headers to include complete path.
|
|
# This substitutes for lots of t-* files.
|
|
extra_headers_list=
|
|
# Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
|
|
for file in ${extra_headers} ; do
|
|
extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
|
|
done
|
|
|
|
# If use_gcc_tgmath is set, append ginclude/tgmath.h.
|
|
if test x"$use_gcc_tgmath" = xyes
|
|
then extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/tgmath.h"
|
|
fi
|
|
|
|
# Define collect2 in Makefile.
|
|
case $host_can_use_collect2 in
|
|
no) collect2= ;;
|
|
*) collect2='collect2$(exeext)' ;;
|
|
esac
|
|
AC_SUBST([collect2])
|
|
|
|
# Add a definition of USE_COLLECT2 if system wants one.
|
|
case $use_collect2 in
|
|
no) use_collect2= ;;
|
|
"") ;;
|
|
*)
|
|
host_xm_defines="${host_xm_defines} USE_COLLECT2"
|
|
xm_defines="${xm_defines} USE_COLLECT2"
|
|
case $host_can_use_collect2 in
|
|
no)
|
|
AC_MSG_ERROR([collect2 is required but cannot be built on this system])
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}",
|
|
[Define to the name of the LTO plugin DSO that must be
|
|
passed to the linker's -plugin=LIB option.])
|
|
|
|
# ---------------------------
|
|
# Assembler & linker features
|
|
# ---------------------------
|
|
|
|
# During stage 2, ld is actually gcc/collect-ld, which is a small script to
|
|
# discern between when to use prev-ld/ld-new and when to use ld/ld-new.
|
|
# However when ld-new is first executed from the build tree, libtool will
|
|
# relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
|
|
# to the build tree. While doing this we need to use the previous-stage
|
|
# linker, or we have an infinite loop. The presence of a shell script as
|
|
# ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
|
|
# the gcc/collect-ld script. So we need to know how libtool works, or
|
|
# exec-tool will fail.
|
|
|
|
m4_defun([_LT_CONFIG_COMMANDS], [])
|
|
AC_PROG_LIBTOOL
|
|
AC_SUBST(objdir)
|
|
AC_SUBST(enable_fast_install)
|
|
|
|
# Identify the assembler which will work hand-in-glove with the newly
|
|
# built GCC, so that we can examine its features. This is the assembler
|
|
# which will be driven by the driver program.
|
|
#
|
|
# If build != host, and we aren't building gas in-tree, we identify a
|
|
# build->target assembler and hope that it will have the same features
|
|
# as the host->target assembler we'll be using.
|
|
gcc_cv_gas_major_version=
|
|
gcc_cv_gas_minor_version=
|
|
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
|
|
|
|
m4_pattern_allow([AS_FOR_TARGET])dnl
|
|
AS_VAR_SET_IF(gcc_cv_as,, [
|
|
if test -x "$DEFAULT_ASSEMBLER"; then
|
|
gcc_cv_as="$DEFAULT_ASSEMBLER"
|
|
elif test -f $gcc_cv_as_gas_srcdir/configure.ac \
|
|
&& test -f ../gas/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_as=../gas/as-new$build_exeext
|
|
elif test -x as$build_exeext; then
|
|
# Build using assembler in the current directory.
|
|
gcc_cv_as=./as$build_exeext
|
|
elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then
|
|
gcc_cv_as="$AS_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
|
|
fi])
|
|
|
|
ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
|
|
AC_SUBST(ORIGINAL_AS_FOR_TARGET)
|
|
case "$ORIGINAL_AS_FOR_TARGET" in
|
|
./as | ./as$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(what assembler to use)
|
|
if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
|
|
# Single tree build which includes gas. We want to prefer it
|
|
# over whatever linker top-level may have detected, since
|
|
# we'll use what we're building after installation anyway.
|
|
AC_MSG_RESULT(newly built gas)
|
|
in_tree_gas=yes
|
|
_gcc_COMPUTE_GAS_VERSION
|
|
in_tree_gas_is_elf=no
|
|
if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|
|
|| (grep 'obj_format = multi' ../gas/Makefile \
|
|
&& grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
|
|
then
|
|
in_tree_gas_is_elf=yes
|
|
fi
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_as)
|
|
in_tree_gas=no
|
|
fi
|
|
|
|
default_ld=
|
|
AC_ARG_ENABLE(ld,
|
|
[[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]],
|
|
[case "${enableval}" in
|
|
no)
|
|
default_ld=ld.gold
|
|
;;
|
|
esac])
|
|
|
|
install_gold_as_default=no
|
|
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])
|
|
|
|
# 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.
|
|
#
|
|
# If build != host, and we aren't building gas in-tree, we identify a
|
|
# build->target linker and hope that it will have the same features
|
|
# as the host->target linker we'll be using.
|
|
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 $gcc_cv_ld_gld_srcdir/configure.ac \
|
|
&& test -f ../ld/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_ld=../ld/ld-new$build_exeext
|
|
elif test -x collect-ld$build_exeext; then
|
|
# Build using linker in the current directory.
|
|
gcc_cv_ld=./collect-ld$build_exeext
|
|
elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then
|
|
gcc_cv_ld="$LD_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
|
|
fi])
|
|
|
|
ORIGINAL_PLUGIN_LD_FOR_TARGET=$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_SUFFIX="$withval"
|
|
fi])
|
|
AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
|
|
AC_DEFINE_UNQUOTED(PLUGIN_LD_SUFFIX, "$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)
|
|
ld_is_gold=no
|
|
if test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld --version 2>/dev/null | sed 1q \
|
|
| grep "GNU gold" > /dev/null; then
|
|
ld_is_gold=yes
|
|
fi
|
|
fi
|
|
AC_MSG_RESULT($ld_is_gold)
|
|
|
|
AC_MSG_CHECKING(gold linker with split stack support as non default)
|
|
# Check to see if default ld is not gold, but gold is
|
|
# available and has support for split stack. If gcc was configured
|
|
# with gold then no checking is done.
|
|
#
|
|
if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then
|
|
|
|
# For platforms other than powerpc64*, enable as appropriate.
|
|
|
|
gold_non_default=no
|
|
ld_gold=`which ${gcc_cv_ld}.gold`
|
|
# Make sure this gold has minimal split stack support
|
|
if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
|
|
ld_vers=`$ld_gold --version | sed 1q`
|
|
gold_vers=`echo $ld_vers | sed -n \
|
|
-e 's,^[[^)]]*[[ ]]\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*[[^)]]*\)) .*$,\1,p'`
|
|
case $target in
|
|
# check that the gold version contains the complete split stack support
|
|
# on powerpc64 big and little endian
|
|
powerpc64*-*-*)
|
|
case "$gold_vers" in
|
|
2.25.[[1-9]]*|2.2[[6-9]][[.0-9]]*|2.[[3-9]][[.0-9]]*|[[3-9]].[[.0-9]]*) gold_non_default=yes
|
|
;;
|
|
*) gold_non_default=no
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
fi
|
|
if test $gold_non_default = yes; then
|
|
AC_DEFINE(HAVE_GOLD_NON_DEFAULT_SPLIT_STACK, 1,
|
|
[Define if the gold linker supports split stack and is available as a non-default])
|
|
fi
|
|
fi
|
|
AC_MSG_RESULT($gold_non_default)
|
|
|
|
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
|
|
AC_SUBST(ORIGINAL_LD_FOR_TARGET)
|
|
case "$ORIGINAL_LD_FOR_TARGET" in
|
|
./collect-ld | ./collect-ld$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(what linker to use)
|
|
if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \
|
|
|| test "$gcc_cv_ld" = ../gold/ld-new$build_exeext; then
|
|
# Single tree build which includes ld. We want to prefer it
|
|
# over whatever linker top-level may have detected, since
|
|
# we'll use what we're building after installation anyway.
|
|
AC_MSG_RESULT(newly built ld)
|
|
in_tree_ld=yes
|
|
in_tree_ld_is_elf=no
|
|
if (grep 'EMUL = .*elf' ../ld/Makefile \
|
|
|| grep 'EMUL = .*linux' ../ld/Makefile \
|
|
|| grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
|
|
in_tree_ld_is_elf=yes
|
|
elif test "$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.ac $gcc_cv_ld_gld_srcdir/Makefile.in
|
|
do
|
|
changequote(,)dnl
|
|
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,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.ac \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
gcc_cv_nm=../binutils/nm-new$build_exeext
|
|
elif test -x nm$build_exeext; then
|
|
gcc_cv_nm=./nm$build_exeext
|
|
elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then
|
|
gcc_cv_nm="$NM_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what nm to use)
|
|
if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built nm)
|
|
in_tree_nm=yes
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_nm)
|
|
in_tree_nm=no
|
|
fi
|
|
|
|
ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
|
|
AC_SUBST(ORIGINAL_NM_FOR_TARGET)
|
|
case "$ORIGINAL_NM_FOR_TARGET" in
|
|
./nm | ./nm$build_exeext) ;;
|
|
*) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
|
|
esac
|
|
|
|
|
|
# Figure out what objdump we will be using.
|
|
AS_VAR_SET_IF(gcc_cv_objdump,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.ac \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
# Single tree build which includes binutils.
|
|
gcc_cv_objdump=../binutils/objdump$build_exeext
|
|
elif test -x objdump$build_exeext; then
|
|
gcc_cv_objdump=./objdump$build_exeext
|
|
elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then
|
|
gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what objdump to use)
|
|
if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built objdump)
|
|
elif test x$gcc_cv_objdump = x; then
|
|
AC_MSG_RESULT(not found)
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_objdump)
|
|
fi
|
|
|
|
# Figure out what readelf we will be using.
|
|
AS_VAR_SET_IF(gcc_cv_readelf,, [
|
|
if test -f $gcc_cv_binutils_srcdir/configure.ac \
|
|
&& test -f ../binutils/Makefile \
|
|
&& test x$build = x$host; then
|
|
# Single tree build which includes binutils.
|
|
gcc_cv_readelf=../binutils/readelf$build_exeext
|
|
elif test -x readelf$build_exeext; then
|
|
gcc_cv_readelf=./readelf$build_exeext
|
|
elif ( set dummy $READELF_FOR_TARGET; test -x $[2] ); then
|
|
gcc_cv_readelf="$READELF_FOR_TARGET"
|
|
else
|
|
AC_PATH_PROG(gcc_cv_readelf, $READELF_FOR_TARGET)
|
|
fi])
|
|
|
|
AC_MSG_CHECKING(what readelf to use)
|
|
if test "$gcc_cv_readelf" = ../binutils/readelf$build_exeext; then
|
|
# Single tree build which includes binutils.
|
|
AC_MSG_RESULT(newly built readelf)
|
|
elif test x$gcc_cv_readelf = x; then
|
|
AC_MSG_RESULT(not found)
|
|
else
|
|
AC_MSG_RESULT($gcc_cv_readelf)
|
|
fi
|
|
|
|
# Figure out what assembler alignment features are present.
|
|
gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
|
|
[2,6,0],,
|
|
[.balign 4
|
|
.p2align 2],,
|
|
[AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
|
|
[Define if your assembler supports .balign and .p2align.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
|
|
[2,8,0],,
|
|
[.p2align 4,,7],,
|
|
[AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
|
|
[Define if your assembler supports specifying the maximum number
|
|
of bytes to skip when using the GAS .p2align command.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
|
|
[2,8,0],,
|
|
[.literal16],,
|
|
[AC_DEFINE(HAVE_GAS_LITERAL16, 1,
|
|
[Define if your assembler supports .literal16.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
|
|
[elf,2,9,0],,
|
|
[conftest_label1: .word 0
|
|
.subsection -1
|
|
conftest_label2: .word 0
|
|
.previous],
|
|
[if test x$gcc_cv_nm != x; then
|
|
$gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
|
|
$gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
|
|
if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
|
|
then :
|
|
else gcc_cv_as_subsection_m1=yes
|
|
fi
|
|
rm -f conftest.nm1 conftest.nm2
|
|
fi],
|
|
[AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
|
|
[Define if your assembler supports .subsection and .subsection -1 starts
|
|
emitting at the beginning of your section.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
|
|
[2,2,0],,
|
|
[ .weak foobar],,
|
|
[AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
|
|
[2,17,0],,
|
|
[ .weakref foobar, barfnot],,
|
|
[AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
|
|
[2,15,91],,
|
|
[ .SPACE $TEXT$
|
|
.NSUBSPA $CODE$,COMDAT],,
|
|
[AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
|
|
|
|
# .hidden needs to be supported in both the assembler and the linker,
|
|
# because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
|
|
# This is irritatingly difficult to feature test for; we have to check the
|
|
# date string after the version number. If we've got an in-tree
|
|
# ld, we don't know its patchlevel version, so we set the baseline at 2.13
|
|
# to be safe.
|
|
# The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
|
|
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
|
|
[elf,2,13,0],,
|
|
[ .hidden foobar
|
|
foobar:])
|
|
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
|
|
# selection of function implementation
|
|
AC_ARG_ENABLE(gnu-indirect-function,
|
|
[AS_HELP_STRING([--enable-gnu-indirect-function],
|
|
[enable the use of the @gnu_indirect_function to glibc systems])],
|
|
[case $enable_gnu_indirect_function in
|
|
yes | no) ;;
|
|
*) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function.
|
|
Valid choices are 'yes' and 'no'.]) ;;
|
|
esac],
|
|
[enable_gnu_indirect_function="$default_gnu_indirect_function"])
|
|
|
|
gif=`if test x$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 $in_tree_ld != yes ; then
|
|
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
|
|
if echo "$ld_ver" | grep GNU > /dev/null; then
|
|
if test x"$ld_is_gold" = xyes; then
|
|
# 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]*\.\([0-9]*\)'`
|
|
ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
|
|
else
|
|
case "${target}" in
|
|
*-*-solaris2*)
|
|
# See acinclude.m4 (gcc_SUN_LD_VERSION) for the version number
|
|
# format.
|
|
#
|
|
# Don't reuse gcc_gv_sun_ld_vers_* in case a linker other than
|
|
# /usr/ccs/bin/ld has been configured.
|
|
ld_ver=`$gcc_cv_ld -V 2>&1`
|
|
if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
|
|
ld_vers=`echo $ld_ver | sed -n \
|
|
-e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
|
|
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
|
|
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
changequote([,])dnl
|
|
|
|
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
|
|
[[if test $in_tree_ld = yes ; then
|
|
gcc_cv_ld_hidden=no
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_hidden=yes
|
|
fi
|
|
else
|
|
gcc_cv_ld_hidden=yes
|
|
if test x"$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
|
|
gcc_cv_ld_hidden=no
|
|
elif test -z "$ld_vers"; then
|
|
# If there was no date string nor ld version number, something is wrong
|
|
gcc_cv_ld_hidden=no
|
|
else
|
|
test -z "$ld_vers_patch" && ld_vers_patch=0
|
|
if test "$ld_vers_major" -lt 2; then
|
|
gcc_cv_ld_hidden=no
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
|
|
gcc_cv_ld_hidden="no"
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
|
|
gcc_cv_ld_hidden=no
|
|
fi
|
|
fi
|
|
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
|
|
;;
|
|
*-*-solaris2.1[0-9]*)
|
|
# Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
|
|
# .symbolic was only added in Solaris 9 12/02.
|
|
gcc_cv_ld_hidden=yes
|
|
;;
|
|
*)
|
|
gcc_cv_ld_hidden=no
|
|
;;
|
|
esac
|
|
fi
|
|
fi]])
|
|
libgcc_visibility=no
|
|
AC_SUBST(libgcc_visibility)
|
|
GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
|
|
if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
|
|
libgcc_visibility=yes
|
|
AC_DEFINE(HAVE_GAS_HIDDEN, 1,
|
|
[Define if your assembler and linker support .hidden.])
|
|
fi
|
|
|
|
AC_MSG_CHECKING(linker read-only and read-write section mixing)
|
|
gcc_cv_ld_ro_rw_mix=unknown
|
|
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 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_ro_rw_mix=read-write
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
|
|
echo '.section myfoosect, "a"' > conftest1.s
|
|
echo '.section myfoosect, "aw"' > conftest2.s
|
|
echo '.byte 1' >> conftest2.s
|
|
echo '.section myfoosect, "a"' > conftest3.s
|
|
echo '.byte 0' >> conftest3.s
|
|
if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
|
|
conftest2.o conftest3.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
|
|
| sed -e '/myfoosect/!d' -e N`
|
|
if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
|
|
if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
|
|
gcc_cv_ld_ro_rw_mix=read-only
|
|
else
|
|
gcc_cv_ld_ro_rw_mix=read-write
|
|
fi
|
|
fi
|
|
fi
|
|
changequote(,)dnl
|
|
rm -f conftest.* conftest[123].*
|
|
changequote([,])dnl
|
|
fi
|
|
if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
|
|
AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
|
|
[Define if your linker links a mix of read-only
|
|
and read-write sections into a read-write section.])
|
|
fi
|
|
AC_MSG_RESULT($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],,
|
|
[ .data
|
|
.uleb128 L2 - L1
|
|
L1:
|
|
.uleb128 1280
|
|
.sleb128 -1010
|
|
L2:],
|
|
[[# GAS versions before 2.11 do not support uleb128,
|
|
# despite appearing to.
|
|
# ??? There exists an elf-specific test that will crash
|
|
# the assembler. Perhaps it's better to figure out whether
|
|
# arbitrary sections are supported and try the test.
|
|
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
|
|
if echo "$as_ver" | grep GNU > /dev/null; then
|
|
as_vers=`echo $as_ver | sed -n \
|
|
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
|
|
as_major=`expr "$as_vers" : '\([0-9]*\)'`
|
|
as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
|
|
if test $as_major -eq 2 && test $as_minor -lt 11
|
|
then :
|
|
else gcc_cv_as_leb128=yes
|
|
fi
|
|
fi]],
|
|
[AC_DEFINE(HAVE_AS_LEB128, 1,
|
|
[Define if your assembler supports .sleb128 and .uleb128.])])
|
|
|
|
# Check if we have assembler support for unwind directives.
|
|
gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
|
|
,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_offset 0, 0
|
|
.cfi_same_value 1
|
|
.cfi_def_cfa 1, 2
|
|
.cfi_escape 1, 2, 3, 4, 5
|
|
.cfi_endproc],
|
|
[case "$target" in
|
|
*-*-solaris*)
|
|
# If the linker used on Solaris (like Sun ld) isn't capable of merging
|
|
# read-only and read-write sections, we need to make sure that the
|
|
# assembler used emits read-write .eh_frame sections.
|
|
if test "x$gcc_cv_ld_ro_rw_mix" != xread-write; then
|
|
if test "x$gcc_cv_objdump" != x; then
|
|
if $gcc_cv_objdump -h conftest.o 2>/dev/null | \
|
|
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
|
|
gcc_cv_as_cfi_directive=no
|
|
else
|
|
case "$target" in
|
|
i?86-*-solaris2.1[[0-9]]* | x86_64-*-solaris2.1[[0-9]]*)
|
|
# On Solaris/x86, make sure that GCC and assembler agree on using
|
|
# read-only .eh_frame sections for 64-bit.
|
|
if test x$gas = xyes; then
|
|
as_ix86_64_opt="--64"
|
|
else
|
|
as_ix86_64_opt="-xarch=amd64"
|
|
fi
|
|
if $gcc_cv_as $as_ix86_64_opt -o conftest.o conftest.s > /dev/null 2>&1 && \
|
|
$gcc_cv_objdump -h conftest.o 2>/dev/null | \
|
|
sed -e /.eh_frame/!d -e N | \
|
|
grep READONLY > /dev/null; then
|
|
gcc_cv_as_cfi_directive=yes
|
|
else
|
|
gcc_cv_as_cfi_directive=no
|
|
fi
|
|
;;
|
|
*)
|
|
gcc_cv_as_cfi_directive=yes
|
|
;;
|
|
esac
|
|
fi
|
|
else
|
|
# no objdump, err on the side of caution
|
|
gcc_cv_as_cfi_directive=no
|
|
fi
|
|
else
|
|
gcc_cv_as_cfi_directive=yes
|
|
fi
|
|
;;
|
|
*-*-*)
|
|
gcc_cv_as_cfi_directive=yes
|
|
;;
|
|
esac])
|
|
if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
|
|
gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
|
|
,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_adjust_cfa_offset 64
|
|
.skip 75040, 0
|
|
.cfi_adjust_cfa_offset 128
|
|
.cfi_endproc],
|
|
[[
|
|
if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
|
|
| grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then
|
|
gcc_cv_as_cfi_advance_working=yes
|
|
fi
|
|
]])
|
|
else
|
|
# no objdump, err on the side of caution
|
|
gcc_cv_as_cfi_advance_working=no
|
|
fi
|
|
GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE)
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
|
|
[`if test $gcc_cv_as_cfi_directive = yes \
|
|
&& test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports CFI directives.])
|
|
|
|
GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE)
|
|
gcc_GAS_CHECK_FEATURE([cfi personality directive],
|
|
gcc_cv_as_cfi_personality_directive, ,,
|
|
[ .text
|
|
.cfi_startproc
|
|
.cfi_personality 0, symbol
|
|
.cfi_endproc])
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE,
|
|
[`if test $gcc_cv_as_cfi_personality_directive = yes;
|
|
then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports .cfi_personality.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([cfi sections directive],
|
|
gcc_cv_as_cfi_sections_directive, ,,
|
|
[ .text
|
|
.cfi_sections .debug_frame, .eh_frame
|
|
.cfi_startproc
|
|
.cfi_endproc],
|
|
[case $target_os in
|
|
win32 | pe | cygwin* | mingw32*)
|
|
# Need to check that we generated the correct relocation for the
|
|
# .debug_frame section. This was fixed for binutils 2.21.
|
|
gcc_cv_as_cfi_sections_directive=no
|
|
if test "x$gcc_cv_objdump" != x; then
|
|
if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
|
|
grep secrel > /dev/null; then
|
|
gcc_cv_as_cfi_sections_directive=yes
|
|
fi
|
|
fi
|
|
;;
|
|
*)
|
|
gcc_cv_as_cfi_sections_directive=yes
|
|
;;
|
|
esac])
|
|
GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE)
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
|
|
[`if test $gcc_cv_as_cfi_sections_directive = yes;
|
|
then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler supports .cfi_sections.])
|
|
|
|
# GAS versions up to and including 2.11.0 may mis-optimize
|
|
# .eh_frame data.
|
|
gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
|
|
[elf,2,12,0],,
|
|
[ .text
|
|
.LFB1:
|
|
.4byte 0
|
|
.L1:
|
|
.4byte 0
|
|
.LFE1:
|
|
.section .eh_frame,"aw",@progbits
|
|
__FRAME_BEGIN__:
|
|
.4byte .LECIE1-.LSCIE1
|
|
.LSCIE1:
|
|
.4byte 0x0
|
|
.byte 0x1
|
|
.ascii "z\0"
|
|
.byte 0x1
|
|
.byte 0x78
|
|
.byte 0x1a
|
|
.byte 0x0
|
|
.byte 0x4
|
|
.4byte 1
|
|
.p2align 1
|
|
.LECIE1:
|
|
.LSFDE1:
|
|
.4byte .LEFDE1-.LASFDE1
|
|
.LASFDE1:
|
|
.4byte .LASFDE1-__FRAME_BEGIN__
|
|
.4byte .LFB1
|
|
.4byte .LFE1-.LFB1
|
|
.byte 0x4
|
|
.4byte .LFE1-.LFB1
|
|
.byte 0x4
|
|
.4byte .L1-.LFB1
|
|
.LEFDE1:],
|
|
[ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
|
|
cat > conftest.lit <<EOF
|
|
0000 10000000 00000000 017a0001 781a0004 .........z..x...
|
|
0010 01000000 12000000 18000000 00000000 ................
|
|
0020 08000000 04080000 0044 .........D @&t@
|
|
EOF
|
|
cat > conftest.big <<EOF
|
|
0000 00000010 00000000 017a0001 781a0004 .........z..x...
|
|
0010 00000001 00000012 00000018 00000000 ................
|
|
0020 00000008 04000000 0844 .........D @&t@
|
|
EOF
|
|
# If the assembler didn't choke, and we can objdump,
|
|
# and we got the correct data, then succeed.
|
|
# The text in the here-document typically retains its unix-style line
|
|
# endings, while the output of objdump will use host line endings.
|
|
# Therefore, use diff -b for the comparisons.
|
|
if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
|
|
| tail -3 > conftest.got \
|
|
&& { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
|
|
|| diff -b conftest.big conftest.got > /dev/null 2>&1; }
|
|
then
|
|
gcc_cv_as_eh_frame=yes
|
|
elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
|
|
gcc_cv_as_eh_frame=buggy
|
|
else
|
|
# Uh oh, what do we do now?
|
|
gcc_cv_as_eh_frame=no
|
|
fi])
|
|
|
|
if test $gcc_cv_as_eh_frame = buggy; then
|
|
AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
|
|
[Define if your assembler mis-optimizes .eh_frame data.])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
|
|
[elf,2,12,0], [--fatal-warnings],
|
|
[.section .rodata.str, "aMS", @progbits, 1])
|
|
if test $gcc_cv_as_shf_merge = no; then
|
|
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
|
|
[elf,2,12,0], [--fatal-warnings],
|
|
[.section .rodata.str, "aMS", %progbits, 1])
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
|
|
[`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([stabs directive], gcc_cv_as_stabs_directive, ,,
|
|
[.stabs "gcc2_compiled.",60,0,0,0],,
|
|
[AC_DEFINE(HAVE_AS_STABS_DIRECTIVE, 1,
|
|
[Define if your assembler supports .stabs.])])
|
|
|
|
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 (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
|
|
if test -z "${gcc_cv_as_comdat_group_group+set}"; then
|
|
gcc_cv_as_comdat_group_group=no
|
|
fi
|
|
fi
|
|
fi
|
|
if test x"$ld_is_gold" = xyes; then
|
|
comdat_group=yes
|
|
elif test $in_tree_ld = yes ; then
|
|
comdat_group=no
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
comdat_group=yes
|
|
fi
|
|
elif echo "$ld_ver" | grep GNU > /dev/null; then
|
|
comdat_group=yes
|
|
if test 0"$ld_date" -lt 20050308; then
|
|
if test -n "$ld_date"; then
|
|
# If there was date string, but was earlier than 2005-03-08, fail
|
|
comdat_group=no
|
|
elif test "$ld_vers_major" -lt 2; then
|
|
comdat_group=no
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
|
|
comdat_group=no
|
|
fi
|
|
fi
|
|
else
|
|
changequote(,)dnl
|
|
case "${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.
|
|
#
|
|
# If using Sun as for COMDAT group as emitted by GCC, one needs at
|
|
# least ld version 1.2267.
|
|
if test "$ld_vers_major" -gt 1; then
|
|
comdat_group=yes
|
|
elif test "x$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
|
|
;;
|
|
*)
|
|
# Assume linkers other than GNU ld don't support COMDAT group.
|
|
comdat_group=no
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
fi
|
|
# Allow overriding the automatic COMDAT group tests above.
|
|
AC_ARG_ENABLE(comdat,
|
|
[AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])],
|
|
[comdat_group="$enable_comdat"])
|
|
if test $comdat_group = no; then
|
|
gcc_cv_as_comdat_group=no
|
|
gcc_cv_as_comdat_group_percent=no
|
|
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 \
|
|
|| test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your assembler and linker support COMDAT groups.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([line table discriminator support],
|
|
gcc_cv_as_discriminator,
|
|
[2,19,51],,
|
|
[ .text
|
|
.file 1 "conf.c"
|
|
.loc 1 1 0 discriminator 1],,
|
|
[AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
|
|
[Define if your assembler supports the .loc discriminator sub-directive.])])
|
|
|
|
# Thread-local storage - the check is heavily parameterized.
|
|
conftest_s=
|
|
tls_first_major=
|
|
tls_first_minor=
|
|
tls_as_opt=
|
|
case "$target" in
|
|
changequote(,)dnl
|
|
alpha*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
ldq $27,__tls_get_addr($29) !literal!1
|
|
lda $16,foo($29) !tlsgd!1
|
|
jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
|
|
ldq $27,__tls_get_addr($29) !literal!2
|
|
lda $16,foo($29) !tlsldm!2
|
|
jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
|
|
ldq $1,foo($29) !gotdtprel
|
|
ldah $2,foo($29) !dtprelhi
|
|
lda $3,foo($2) !dtprello
|
|
lda $4,foo($29) !dtprel
|
|
ldq $1,foo($29) !gottprel
|
|
ldah $2,foo($29) !tprelhi
|
|
lda $3,foo($2) !tprello
|
|
lda $4,foo($29) !tprel'
|
|
tls_first_major=2
|
|
tls_first_minor=13
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
cris-*-*|crisv32-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
x: .long 25
|
|
.text
|
|
move.d x:IE,$r10
|
|
nop'
|
|
tls_first_major=2
|
|
tls_first_minor=20
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
frv*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
x: .long 25
|
|
.text
|
|
call #gettlsoff(x)'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
;;
|
|
hppa*-*-linux*)
|
|
conftest_s='
|
|
t1: .reg %r20
|
|
t2: .reg %r21
|
|
gp: .reg %r19
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.align 4
|
|
addil LT%foo-$tls_gdidx$,gp
|
|
ldo RT%foo-$tls_gdidx$(%r1),%arg0
|
|
b __tls_get_addr
|
|
nop
|
|
addil LT%foo-$tls_ldidx$,gp
|
|
b __tls_get_addr
|
|
ldo RT%foo-$tls_ldidx$(%r1),%arg0
|
|
addil LR%foo-$tls_dtpoff$,%ret0
|
|
ldo RR%foo-$tls_dtpoff$(%r1),%t1
|
|
mfctl %cr27,%t1
|
|
addil LT%foo-$tls_ieoff$,gp
|
|
ldw RT%foo-$tls_ieoff$(%r1),%t2
|
|
add %t1,%t2,%t3
|
|
mfctl %cr27,%t1
|
|
addil LR%foo-$tls_leoff$,%t1
|
|
ldo RR%foo-$tls_leoff$(%r1),%t2'
|
|
tls_first_major=2
|
|
tls_first_minor=15
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
arm*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",%progbits
|
|
foo: .long 25
|
|
.text
|
|
.word foo(gottpoff)
|
|
.word foo(tpoff)
|
|
.word foo(tlsgd)
|
|
.word foo(tlsldm)
|
|
.word foo(tlsldo)'
|
|
tls_first_major=2
|
|
tls_first_minor=17
|
|
;;
|
|
i[34567]86-*-* | x86_64-*-*)
|
|
case "$target" in
|
|
i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
|
|
on_solaris=yes
|
|
;;
|
|
*)
|
|
on_solaris=no
|
|
;;
|
|
esac
|
|
if test x$on_solaris = xyes && test x$gas_flag = xno; then
|
|
conftest_s='
|
|
.section .tdata,"awt",@progbits'
|
|
tls_first_major=0
|
|
tls_first_minor=0
|
|
tls_section_flag=t
|
|
changequote([,])dnl
|
|
AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
|
|
[Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
|
|
changequote(,)dnl
|
|
else
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_section_flag=T
|
|
tls_as_opt="--fatal-warnings"
|
|
fi
|
|
case "$target" in
|
|
i[34567]86-*-*)
|
|
conftest_s="$conftest_s
|
|
foo: .long 25
|
|
.text
|
|
movl %gs:0, %eax
|
|
leal foo@tlsgd(,%ebx,1), %eax
|
|
leal foo@tlsldm(%ebx), %eax
|
|
leal foo@dtpoff(%eax), %edx
|
|
movl foo@gottpoff(%ebx), %eax
|
|
subl foo@gottpoff(%ebx), %eax
|
|
addl foo@gotntpoff(%ebx), %eax
|
|
movl foo@indntpoff, %eax
|
|
movl \$foo@tpoff, %eax
|
|
subl \$foo@tpoff, %eax
|
|
leal foo@ntpoff(%ecx), %eax"
|
|
;;
|
|
x86_64-*-*)
|
|
if test x$on_solaris = xyes; then
|
|
case $gas_flag in
|
|
yes) tls_as_opt="$tls_as_opt --64" ;;
|
|
no) tls_as_opt="$tls_as_opt -xarch=amd64" ;;
|
|
esac
|
|
fi
|
|
conftest_s="$conftest_s
|
|
foo: .long 25
|
|
.text
|
|
movq %fs:0, %rax
|
|
leaq foo@tlsgd(%rip), %rdi
|
|
leaq foo@tlsld(%rip), %rdi
|
|
leaq foo@dtpoff(%rax), %rdx
|
|
movq foo@gottpoff(%rip), %rax
|
|
movq \$foo@tpoff, %rax"
|
|
;;
|
|
esac
|
|
;;
|
|
ia64-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: data8 25
|
|
.text
|
|
addl r16 = @ltoff(@dtpmod(foo#)), gp
|
|
addl r17 = @ltoff(@dtprel(foo#)), gp
|
|
addl r18 = @ltoff(@tprel(foo#)), gp
|
|
addl r19 = @dtprel(foo#), gp
|
|
adds r21 = @dtprel(foo#), r13
|
|
movl r23 = @dtprel(foo#)
|
|
addl r20 = @tprel(foo#), gp
|
|
adds r22 = @tprel(foo#), r13
|
|
movl r24 = @tprel(foo#)'
|
|
tls_first_major=2
|
|
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
|
|
x:
|
|
.word 2
|
|
.text
|
|
addiu $4, $28, %tlsgd(x)
|
|
addiu $4, $28, %tlsldm(x)
|
|
lui $4, %dtprel_hi(x)
|
|
addiu $4, $4, %dtprel_lo(x)
|
|
lw $4, %gottprel(x)($28)
|
|
lui $4, %tprel_hi(x)
|
|
addiu $4, $4, %tprel_lo(x)'
|
|
tls_first_major=2
|
|
tls_first_minor=16
|
|
tls_as_opt='-32 --fatal-warnings'
|
|
;;
|
|
m68k-*-*)
|
|
conftest_s='
|
|
.section .tdata,"awT",@progbits
|
|
x:
|
|
.word 2
|
|
.text
|
|
foo:
|
|
move.l x@TLSGD(%a5),%a0
|
|
move.l x@TLSLDM(%a5),%a0
|
|
move.l x@TLSLDO(%a5),%a0
|
|
move.l x@TLSIE(%a5),%a0
|
|
move.l x@TLSLE(%a5),%a0'
|
|
tls_first_major=2
|
|
tls_first_minor=19
|
|
tls_as_opt='--fatal-warnings'
|
|
;;
|
|
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
|
|
foo: .long 25
|
|
.text
|
|
adrp x0, :tlsgd:x
|
|
add x0, x0, #:tlsgd_lo12:x
|
|
bl __tls_get_addr
|
|
nop'
|
|
tls_first_major=2
|
|
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*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
.align 3
|
|
ld0: .space 8
|
|
ld1: .space 8
|
|
x1: .space 8
|
|
x2: .space 8
|
|
x3: .space 8
|
|
.text
|
|
addi 3,2,ld0@got@tlsgd
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 3,2,ld1@toc
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 3,2,x1@got@tlsld
|
|
bl .__tls_get_addr
|
|
nop
|
|
addi 9,3,x1@dtprel
|
|
bl .__tls_get_addr
|
|
nop
|
|
addis 9,3,x2@dtprel@ha
|
|
addi 9,9,x2@dtprel@l
|
|
bl .__tls_get_addr
|
|
nop
|
|
ld 9,x3@got@dtprel(2)
|
|
add 9,9,3
|
|
bl .__tls_get_addr
|
|
nop'
|
|
tls_first_major=2
|
|
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
|
|
foo: .long 25
|
|
.text
|
|
.long foo@TLSGD
|
|
.long foo@TLSLDM
|
|
.long foo@DTPOFF
|
|
.long foo@NTPOFF
|
|
.long foo@GOTNTPOFF
|
|
.long foo@INDNTPOFF
|
|
l %r1,foo@GOTNTPOFF(%r12)
|
|
l %r1,0(%r1):tls_load:foo
|
|
bas %r14,0(%r1,%r13):tls_gdcall:foo
|
|
bas %r14,0(%r1,%r13):tls_ldcall:foo'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-m31 --fatal-warnings"
|
|
;;
|
|
s390x-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.quad foo@TLSGD
|
|
.quad foo@TLSLDM
|
|
.quad foo@DTPOFF
|
|
.quad foo@NTPOFF
|
|
.quad foo@GOTNTPOFF
|
|
lg %r1,foo@GOTNTPOFF(%r12)
|
|
larl %r1,foo@INDNTPOFF
|
|
brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
|
|
brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-m64 -Aesame --fatal-warnings"
|
|
;;
|
|
sh-*-* | sh[123456789lbe]*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
.long foo@TLSGD
|
|
.long foo@TLSLDM
|
|
.long foo@DTPOFF
|
|
.long foo@GOTTPOFF
|
|
.long foo@TPOFF'
|
|
tls_first_major=2
|
|
tls_first_minor=13
|
|
tls_as_opt=--fatal-warnings
|
|
;;
|
|
sparc*-*-*)
|
|
case "$target" in
|
|
sparc*-sun-solaris2.*)
|
|
on_solaris=yes
|
|
;;
|
|
*)
|
|
on_solaris=no
|
|
;;
|
|
esac
|
|
if test x$on_solaris = xyes && test x$gas_flag = xno; then
|
|
conftest_s='
|
|
.section ".tdata",#alloc,#write,#tls'
|
|
tls_first_major=0
|
|
tls_first_minor=0
|
|
else
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits'
|
|
tls_first_major=2
|
|
tls_first_minor=14
|
|
tls_as_opt="-32 --fatal-warnings"
|
|
fi
|
|
conftest_s="$conftest_s
|
|
foo: .long 25
|
|
.text
|
|
sethi %tgd_hi22(foo), %o0
|
|
add %o0, %tgd_lo10(foo), %o1
|
|
add %l7, %o1, %o0, %tgd_add(foo)
|
|
call __tls_get_addr, %tgd_call(foo)
|
|
sethi %tldm_hi22(foo), %l1
|
|
add %l1, %tldm_lo10(foo), %l2
|
|
add %l7, %l2, %o0, %tldm_add(foo)
|
|
call __tls_get_addr, %tldm_call(foo)
|
|
sethi %tldo_hix22(foo), %l3
|
|
xor %l3, %tldo_lox10(foo), %l4
|
|
add %o0, %l4, %l5, %tldo_add(foo)
|
|
sethi %tie_hi22(foo), %o3
|
|
add %o3, %tie_lo10(foo), %o3
|
|
ld [%l7 + %o3], %o2, %tie_ld(foo)
|
|
add %g7, %o2, %o4, %tie_add(foo)
|
|
sethi %tle_hix22(foo), %l1
|
|
xor %l1, %tle_lox10(foo), %o5
|
|
ld [%g7 + %o5], %o1"
|
|
;;
|
|
tilepro*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
addli r0, zero, tls_gd(foo)
|
|
auli r0, zero, tls_gd_ha16(foo)
|
|
addli r0, r0, tls_gd_lo16(foo)
|
|
jal __tls_get_addr
|
|
addli r0, zero, tls_ie(foo)
|
|
auli r0, r0, tls_ie_ha16(foo)
|
|
addli r0, r0, tls_ie_lo16(foo)'
|
|
tls_first_major=2
|
|
tls_first_minor=22
|
|
tls_as_opt="--fatal-warnings"
|
|
;;
|
|
tilegx*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
shl16insli r0, zero, hw0_last_tls_gd(foo)
|
|
shl16insli r0, zero, hw1_last_tls_gd(foo)
|
|
shl16insli r0, r0, hw0_tls_gd(foo)
|
|
jal __tls_get_addr
|
|
shl16insli r0, zero, hw1_last_tls_ie(foo)
|
|
shl16insli r0, r0, hw0_tls_ie(foo)'
|
|
tls_first_major=2
|
|
tls_first_minor=22
|
|
tls_as_opt="--fatal-warnings"
|
|
;;
|
|
xtensa*-*-*)
|
|
conftest_s='
|
|
.section ".tdata","awT",@progbits
|
|
foo: .long 25
|
|
.text
|
|
movi a8, foo@TLSFUNC
|
|
movi a10, foo@TLSARG
|
|
callx8.tls a8, foo@TLSCALL'
|
|
tls_first_major=2
|
|
tls_first_minor=19
|
|
;;
|
|
changequote([,])dnl
|
|
esac
|
|
set_have_as_tls=no
|
|
if test "x$enable_tls" = xno ; then
|
|
: # TLS explicitly disabled.
|
|
elif test "x$enable_tls" = xyes ; then
|
|
set_have_as_tls=yes # TLS explicitly enabled.
|
|
elif test -z "$tls_first_major"; then
|
|
: # If we don't have a check, assume no support.
|
|
else
|
|
gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
|
|
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
|
|
[set_have_as_tls=yes])
|
|
fi
|
|
if test $set_have_as_tls = yes ; then
|
|
AC_DEFINE(HAVE_AS_TLS, 1,
|
|
[Define if your assembler and linker support thread-local storage.])
|
|
fi
|
|
|
|
# Target-specific assembler checks.
|
|
|
|
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 \
|
|
&& $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
|
|
gcc_cv_ld_static_dynamic=yes
|
|
else
|
|
case "$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"
|
|
;;
|
|
# HP-UX ld uses -a flags to select between shared and archive.
|
|
*-*-hpux*)
|
|
if test x"$gnu_ld" = xno; then
|
|
gcc_cv_ld_static_dynamic=yes
|
|
gcc_cv_ld_static_option="-aarchive_shared"
|
|
gcc_cv_ld_dynamic_option="-adefault"
|
|
fi
|
|
;;
|
|
# Solaris 2 ld always supports -Bstatic/-Bdynamic.
|
|
*-*-solaris2*)
|
|
gcc_cv_ld_static_dynamic=yes
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_static_dynamic" = xyes; then
|
|
AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
|
|
[Define if your linker supports -Bstatic/-Bdynamic 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($gcc_cv_ld_static_dynamic)
|
|
|
|
if test x"$demangler_in_ld" = xyes; then
|
|
AC_MSG_CHECKING(linker --demangle support)
|
|
gcc_cv_ld_demangle=no
|
|
if test $in_tree_ld = yes; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
|
|
gcc_cv_ld_demangle=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
|
|
# Check if the GNU linker supports --demangle option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
|
|
gcc_cv_ld_demangle=yes
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_demangle" = xyes; then
|
|
AC_DEFINE(HAVE_LD_DEMANGLE, 1,
|
|
[Define if your linker supports --demangle option.])
|
|
fi
|
|
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 "$target" in
|
|
aarch64*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,,
|
|
[-mabi=lp64], [.text],,,)
|
|
if test x$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
|
|
# Check if we have binutils support for relocations types needed by -fpic
|
|
gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,,
|
|
[
|
|
.text
|
|
ldr x0, [[x2, #:gotpage_lo15:globalsym]]
|
|
],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1,
|
|
[Define if your assembler supports relocs needed by -fpic.])])
|
|
# Enable default workaround for AArch64 Cortex-A53 erratum 835769.
|
|
AC_ARG_ENABLE(fix-cortex-a53-835769,
|
|
[
|
|
AS_HELP_STRING([--enable-fix-cortex-a53-835769],
|
|
[enable workaround for AArch64 Cortex-A53 erratum 835769 by default])
|
|
AS_HELP_STRING([--disable-fix-cortex-a53-835769],
|
|
[disable workaround for AArch64 Cortex-A53 erratum 835769 by default])
|
|
],
|
|
[
|
|
case $enableval in
|
|
yes)
|
|
tm_defines="${tm_defines} TARGET_FIX_ERR_A53_835769_DEFAULT=1"
|
|
;;
|
|
no)
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-835769.\
|
|
Valid choices are 'yes' and 'no'.])
|
|
;;
|
|
|
|
esac
|
|
],
|
|
[])
|
|
# Enable default workaround for AArch64 Cortex-A53 erratum 843419.
|
|
AC_ARG_ENABLE(fix-cortex-a53-843419,
|
|
[
|
|
AS_HELP_STRING([--enable-fix-cortex-a53-843419],
|
|
[enable workaround for AArch64 Cortex-A53 erratum 843419 by default])
|
|
AS_HELP_STRING([--disable-fix-cortex-a53-843419],
|
|
[disable workaround for AArch64 Cortex-A53 erratum 843419 by default])
|
|
],
|
|
[
|
|
case $enableval in
|
|
yes)
|
|
tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1"
|
|
;;
|
|
no)
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\
|
|
Valid choices are 'yes' and 'no'.])
|
|
;;
|
|
|
|
esac
|
|
],
|
|
[])
|
|
;;
|
|
|
|
# All TARGET_ABI_OSF targets.
|
|
alpha*-*-linux* | alpha*-*-*bsd*)
|
|
gcc_GAS_CHECK_FEATURE([explicit relocation support],
|
|
gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
|
|
[ .set nomacro
|
|
.text
|
|
extbl $3, $2, $3 !lituse_bytoff!1
|
|
ldq $2, a($29) !literal!1
|
|
ldq $4, b($29) !literal!2
|
|
ldq_u $3, 0($2) !lituse_base!1
|
|
ldq $27, f($29) !literal!5
|
|
jsr $26, ($27), f !lituse_jsr!5
|
|
ldah $29, 0($26) !gpdisp!3
|
|
lda $0, c($29) !gprel
|
|
ldah $1, d($29) !gprelhigh
|
|
lda $1, d($1) !gprellow
|
|
lda $29, 0($29) !gpdisp!3],,
|
|
[AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
|
|
[Define if your assembler supports explicit relocations.])])
|
|
gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
|
|
gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
|
|
[ .set nomacro
|
|
.text
|
|
ldq $27, a($29) !literal!1
|
|
jsr $26, ($27), a !lituse_jsrdirect!1],,
|
|
[AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
|
|
[Define if your assembler supports the lituse_jsrdirect relocation.])])
|
|
;;
|
|
|
|
avr-*-*)
|
|
gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,,
|
|
[--mlink-relax], [.text],,
|
|
[AC_DEFINE(HAVE_AS_AVR_MLINK_RELAX_OPTION, 1,
|
|
[Define if your avr assembler supports --mlink-relax option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([-mrmw option], gcc_cv_as_avr_mrmw,,
|
|
[-mrmw], [.text],,
|
|
[AC_DEFINE(HAVE_AS_AVR_MRMW_OPTION, 1,
|
|
[Define if your avr assembler supports -mrmw option.])])
|
|
;;
|
|
|
|
cris-*-*)
|
|
gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
|
|
gcc_cv_as_cris_no_mul_bug,[2,15,91],
|
|
[-no-mul-bug-abort], [.text],,
|
|
[AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
|
|
[Define if your assembler supports the -no-mul-bug-abort option.])])
|
|
;;
|
|
|
|
sparc*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
|
|
[.register %g2, #scratch],,
|
|
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
|
|
[Define if your assembler supports .register.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
|
|
[-relax], [.text],,
|
|
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
|
|
[Define if your assembler supports -relax option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs],
|
|
gcc_cv_as_sparc_gotdata_op,,
|
|
[-K PIC],
|
|
[.text
|
|
.align 4
|
|
foo:
|
|
nop
|
|
bar:
|
|
sethi %gdop_hix22(foo), %g1
|
|
xor %g1, %gdop_lox10(foo), %g1
|
|
ld [[%l7 + %g1]], %g2, %gdop(foo)],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
|
|
if test x$gcc_cv_objdump != x; then
|
|
if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
|
|
| grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_gotdata_op=no
|
|
else
|
|
gcc_cv_as_sparc_gotdata_op=yes
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1,
|
|
[Define if your assembler and linker support GOTDATA_OP relocs.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
|
|
gcc_cv_as_sparc_ua_pcrel,,
|
|
[-K PIC],
|
|
[.text
|
|
foo:
|
|
nop
|
|
.data
|
|
.align 4
|
|
.byte 0
|
|
.uaword %r_disp32(foo)],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_ua_pcrel=yes
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
|
|
gcc_cv_as_sparc_ua_pcrel_hidden,,
|
|
[-K PIC],
|
|
[.data
|
|
.align 4
|
|
.byte 0x31
|
|
.uaword %r_disp32(foo)
|
|
.byte 0x32, 0x33, 0x34
|
|
.global foo
|
|
.hidden foo
|
|
foo:
|
|
.skip 4],
|
|
[if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
|
|
&& $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
|
|
| grep ' 31000000 07323334' > /dev/null 2>&1; then
|
|
if $gcc_cv_objdump -R conftest 2> /dev/null \
|
|
| grep 'DISP32' > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_as_sparc_ua_pcrel_hidden=yes
|
|
fi
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
|
|
[Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
|
|
]) # unaligned pcrel relocs
|
|
|
|
gcc_GAS_CHECK_FEATURE([offsetable %lo()],
|
|
gcc_cv_as_sparc_offsetable_lo10,,
|
|
[-xarch=v9],
|
|
[.text
|
|
or %g1, %lo(ab) + 12, %g1
|
|
or %g1, %lo(ab + 12), %g1],
|
|
[if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
|
|
| grep ' 82106000 82106000' > /dev/null 2>&1; then
|
|
gcc_cv_as_sparc_offsetable_lo10=yes
|
|
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.])])
|
|
|
|
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
|
|
casa [[%g2]] 0xb, %g3, %g1],,
|
|
[AC_DEFINE(HAVE_AS_LEON, 1,
|
|
[Define if your assembler supports LEON instructions.])])
|
|
;;
|
|
|
|
changequote(,)dnl
|
|
i[34567]86-*-* | x86_64-*-*)
|
|
changequote([,])dnl
|
|
case $target_os in
|
|
cygwin*)
|
|
# Full C++ conformance when using a shared libstdc++-v3 requires some
|
|
# support from the Cygwin DLL, which in more recent versions exports
|
|
# wrappers to aid in interposing and redirecting operators new, delete,
|
|
# etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
|
|
# are configuring for a version of Cygwin that exports the wrappers.
|
|
if test x$host = x$target && test x$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
|
|
# we just have to assume we're building for an up-to-date target.
|
|
gcc_ac_cygwin_dll_wrappers=yes
|
|
fi
|
|
AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS,
|
|
[`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`],
|
|
[Define if you want to generate code by default that assumes that the
|
|
Cygwin DLL exports wrappers to support libstdc++ function replacement.])
|
|
esac
|
|
case $target_os in
|
|
cygwin* | pe | mingw32* | 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.
|
|
gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,
|
|
[2,19,52],,[.comm foo,1,32])
|
|
AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM,
|
|
[`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`],
|
|
[Define if your assembler supports specifying the alignment
|
|
of objects allocated using the GAS .comm command.])
|
|
# Used for DWARF 2 in PE
|
|
gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
|
|
gcc_cv_as_ix86_pe_secrel32,
|
|
[2,15,91],,
|
|
[.text
|
|
foo: nop
|
|
.data
|
|
.secrel32 foo],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
|
|
gcc_cv_as_ix86_pe_secrel32=yes
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
|
|
[Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
|
|
# Test if the assembler supports the extended form of the .section
|
|
# directive that specifies section alignment. LTO support uses this,
|
|
# but normally only after installation, so we warn but don't fail the
|
|
# configure if LTO is enabled but the assembler does not support it.
|
|
gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
|
|
[2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
|
|
if test x$gcc_cv_as_section_has_align != xyes; then
|
|
case ",$enable_languages," in
|
|
*,lto,*)
|
|
AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
|
|
;;
|
|
esac
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# 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], [--fatal-warnings],
|
|
[.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.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
|
|
gcc_cv_as_ix86_filds,,,
|
|
[filds (%ebp); fists (%ebp)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FILDS, 1,
|
|
[Define if your assembler uses filds and fists mnemonics.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([fildq and fistpq mnemonics],
|
|
gcc_cv_as_ix86_fildq,,,
|
|
[fildq (%ebp); fistpq (%ebp)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FILDQ, 1,
|
|
[Define if your assembler uses fildq and fistq mnemonics.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([cmov syntax],
|
|
gcc_cv_as_ix86_cmov_sun_syntax,,,
|
|
[cmovl.l %edx, %eax],,
|
|
[AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
|
|
[Define if your assembler supports the Sun syntax for cmov.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
|
|
gcc_cv_as_ix86_ffreep,,,
|
|
[ffreep %st(1)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
|
|
[Define if your assembler supports the ffreep mnemonic.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.quad directive],
|
|
gcc_cv_as_ix86_quad,,,
|
|
[.quad 0],,
|
|
[AC_DEFINE(HAVE_AS_IX86_QUAD, 1,
|
|
[Define if your assembler supports the .quad directive.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([sahf mnemonic],
|
|
gcc_cv_as_ix86_sahf,,,
|
|
[.code64
|
|
sahf],,
|
|
[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 $gcc_cv_as_ix86_interunit_movq = yes; then echo 1; else echo 0; fi`],
|
|
[Define if your assembler supports interunit movq mnemonic.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([hle prefixes],
|
|
gcc_cv_as_ix86_hle,,,
|
|
[lock xacquire cmpxchg %esi, (%ecx)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_HLE, 1,
|
|
[Define if your assembler supports HLE prefixes.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([swap suffix],
|
|
gcc_cv_as_ix86_swap,,,
|
|
[movl.s %esp, %ebp],,
|
|
[AC_DEFINE(HAVE_AS_IX86_SWAP, 1,
|
|
[Define if your assembler supports the swap suffix.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
|
|
gcc_cv_as_ix86_diff_sect_delta,,,
|
|
[.section .rodata
|
|
.L1:
|
|
.long .L2-.L1
|
|
.long .L3-.L1
|
|
.text
|
|
.L3: nop
|
|
.L2: nop],,
|
|
[AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
|
|
[Define if your assembler supports the subtraction of symbols in different sections.])])
|
|
|
|
# These two are used unconditionally by i386.[ch]; it is to be defined
|
|
# to 1 if the feature is present, 0 otherwise.
|
|
as_ix86_gotoff_in_data_opt=
|
|
if test x$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],
|
|
[$as_ix86_gotoff_in_data_opt],
|
|
[ .text
|
|
.L0:
|
|
nop
|
|
.data
|
|
.long .L0@GOTOFF])
|
|
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
|
|
[`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
|
|
[Define true if the assembler supports '.long foo@GOTOFF'.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([rep and lock prefix],
|
|
gcc_cv_as_ix86_rep_lock_prefix,,,
|
|
[rep movsl
|
|
rep ret
|
|
rep nop
|
|
rep bsf %ecx, %eax
|
|
rep bsr %ecx, %eax
|
|
lock addl %edi, (%eax,%esi)
|
|
lock orl $0, (%esp)],,
|
|
[AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
|
|
[Define if the assembler supports 'rep <insn>, lock <insn>'.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([ud2 mnemonic],
|
|
gcc_cv_as_ix86_ud2,,,
|
|
[ud2],,
|
|
[AC_DEFINE(HAVE_AS_IX86_UD2, 1,
|
|
[Define if your assembler supports the 'ud2' mnemonic.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
|
|
gcc_cv_as_ix86_tlsgdplt,,,
|
|
[call tls_gd@tlsgdplt],
|
|
[if test x$gcc_cv_ld != x \
|
|
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
|
|
gcc_cv_as_ix86_tlsgdplt=yes
|
|
fi
|
|
rm -f conftest],
|
|
[AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1,
|
|
[Define if your assembler and linker support @tlsgdplt.])])
|
|
|
|
conftest_s='
|
|
.section .tdata,"aw'$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,,,
|
|
[$conftest_s],
|
|
[if test x$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_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.])
|
|
|
|
;;
|
|
|
|
ia64*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
|
|
gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
|
|
[ .text
|
|
addl r15 = @ltoffx(x#), gp
|
|
;;
|
|
ld8.mov r16 = [[r15]], x#],,
|
|
[AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
|
|
[Define if your assembler supports ltoffx and ldxmov relocations.])])
|
|
|
|
;;
|
|
|
|
powerpc*-*-*)
|
|
|
|
case $target in
|
|
*-*-darwin*)
|
|
gcc_GAS_CHECK_FEATURE([.machine directive support],
|
|
gcc_cv_as_machine_directive,,,
|
|
[ .machine ppc7400])
|
|
if test x$gcc_cv_as_machine_directive != xyes; then
|
|
echo "*** This target requires an assembler supporting \".machine\"" >&2
|
|
echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
|
|
test x$build = x$target && exit 1
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5"
|
|
.csect .text[[PR]]
|
|
mfcr 3,128';;
|
|
*-*-darwin*) conftest_s=' .text
|
|
mfcr r3,128';;
|
|
*) conftest_s=' .machine power4
|
|
.text
|
|
mfcr 3,128';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([mfcr field support],
|
|
gcc_cv_as_powerpc_mfcrf, [2,14,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_MFCRF, 1,
|
|
[Define if your assembler supports mfcr field.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5"
|
|
.csect .text[[PR]]
|
|
popcntb 3,3';;
|
|
*) conftest_s=' .machine power5
|
|
.text
|
|
popcntb 3,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([popcntb support],
|
|
gcc_cv_as_powerpc_popcntb, [2,17,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POPCNTB, 1,
|
|
[Define if your assembler supports popcntb field.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr5x"
|
|
.csect .text[[PR]]
|
|
frin 1,1';;
|
|
*) conftest_s=' .machine power5
|
|
.text
|
|
frin 1,1';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([fp round support],
|
|
gcc_cv_as_powerpc_fprnd, [2,17,0],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_FPRND, 1,
|
|
[Define if your assembler supports fprnd.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
mffgpr 1,3';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
mffgpr 1,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([move fp gpr support],
|
|
gcc_cv_as_powerpc_mfpgpr, [2,19,2],,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_MFPGPR, 1,
|
|
[Define if your assembler supports mffgpr and mftgpr.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .csect .text[[PR]]
|
|
LCF..0:
|
|
addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
|
|
*-*-darwin*)
|
|
conftest_s=' .text
|
|
LCF0:
|
|
addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
|
|
*) conftest_s=' .text
|
|
.LCF0:
|
|
addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([rel16 relocs],
|
|
gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_REL16, 1,
|
|
[Define if your assembler supports R_PPC_REL16 relocs.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
cmpb 3,4,5';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
cmpb 3,4,5';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([compare bytes support],
|
|
gcc_cv_as_powerpc_cmpb, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_CMPB, 1,
|
|
[Define if your assembler supports cmpb.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr6"
|
|
.csect .text[[PR]]
|
|
dadd 1,2,3';;
|
|
*) conftest_s=' .machine power6
|
|
.text
|
|
dadd 1,2,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([decimal float support],
|
|
gcc_cv_as_powerpc_dfp, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_DFP, 1,
|
|
[Define if your assembler supports DFP instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr7"
|
|
.csect .text[[PR]]
|
|
lxvd2x 1,2,3';;
|
|
*) conftest_s=' .machine power7
|
|
.text
|
|
lxvd2x 1,2,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([vector-scalar support],
|
|
gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_VSX, 1,
|
|
[Define if your assembler supports VSX instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr7"
|
|
.csect .text[[PR]]
|
|
popcntd 3,3';;
|
|
*) conftest_s=' .machine power7
|
|
.text
|
|
popcntd 3,3';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([popcntd support],
|
|
gcc_cv_as_powerpc_popcntd, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POPCNTD, 1,
|
|
[Define if your assembler supports POPCNTD instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr8"
|
|
.csect .text[[PR]]';;
|
|
*) conftest_s=' .machine power8
|
|
.text';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([power8 support],
|
|
gcc_cv_as_powerpc_power8, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POWER8, 1,
|
|
[Define if your assembler supports POWER8 instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "pwr9"
|
|
.csect .text[[PR]]';;
|
|
*) conftest_s=' .machine power9
|
|
.text';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([power9 support],
|
|
gcc_cv_as_powerpc_power9, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_POWER9, 1,
|
|
[Define if your assembler supports POWER9 instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .csect .text[[PR]]
|
|
lwsync';;
|
|
*) conftest_s=' .text
|
|
lwsync';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([lwsync support],
|
|
gcc_cv_as_powerpc_lwsync, [2,19,2], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_LWSYNC, 1,
|
|
[Define if your assembler supports LWSYNC instructions.])])
|
|
|
|
case $target in
|
|
*-*-aix*) conftest_s=' .machine "476"
|
|
.csect .text[[PR]]
|
|
dci 0';;
|
|
*) conftest_s=' .machine "476"
|
|
.text
|
|
dci 0';;
|
|
esac
|
|
|
|
gcc_GAS_CHECK_FEATURE([data cache invalidate support],
|
|
gcc_cv_as_powerpc_dci, [9,99,0], -a32,
|
|
[$conftest_s],,
|
|
[AC_DEFINE(HAVE_AS_DCI, 1,
|
|
[Define if your assembler supports the DCI/ICI instructions.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
|
|
gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
|
|
[.gnu_attribute 4,1],,
|
|
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
|
|
[Define if your assembler supports .gnu_attribute.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([tls marker support],
|
|
gcc_cv_as_powerpc_tls_markers, [2,20,0],,
|
|
[ bl __tls_get_addr(x@tlsgd)],,
|
|
[AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
|
|
[Define if your assembler supports arg info for __tls_get_addr.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([prologue entry point marker support],
|
|
gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings,
|
|
[ .reloc .,R_PPC64_ENTRY; nop],,
|
|
[AC_DEFINE(HAVE_AS_ENTRY_MARKERS, 1,
|
|
[Define if your assembler supports the R_PPC64_ENTRY relocation.])])
|
|
|
|
case $target in
|
|
*-*-aix*)
|
|
gcc_GAS_CHECK_FEATURE([AIX .ref support],
|
|
gcc_cv_as_aix_ref, [2,21,0],,
|
|
[ .csect stuff[[rw]]
|
|
stuff:
|
|
.long 1
|
|
.extern sym
|
|
.ref sym
|
|
],,
|
|
[AC_DEFINE(HAVE_AS_REF, 1,
|
|
[Define if your assembler supports .ref])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([AIX DWARF location lists section support],
|
|
gcc_cv_as_aix_dwloc, [2,21,0],,
|
|
[ .dwsect 0xA0000
|
|
Lframe..0:
|
|
.vbyte 4,Lframe..0:
|
|
],,
|
|
[AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1,
|
|
[Define if your assembler supports AIX debug frame section label reference.])])
|
|
;;
|
|
esac
|
|
;;
|
|
|
|
mips*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([explicit relocation support],
|
|
gcc_cv_as_mips_explicit_relocs, [2,14,0],,
|
|
[ lw $4,%gp_rel(foo)($4)],,
|
|
[if test x$target_cpu_default = x
|
|
then target_cpu_default=MASK_EXPLICIT_RELOCS
|
|
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
|
|
fi])
|
|
|
|
gcc_GAS_CHECK_FEATURE([-mno-shared support],
|
|
gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
|
|
[AC_DEFINE(HAVE_AS_NO_SHARED, 1,
|
|
[Define if the assembler understands -mno-shared.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
|
|
gcc_cv_as_mips_gnu_attribute, [2,18,0],,
|
|
[.gnu_attribute 4,1],,
|
|
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
|
|
[Define if your assembler supports .gnu_attribute.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.module support],
|
|
gcc_cv_as_mips_dot_module,,[-32],
|
|
[.module mips2
|
|
.module fp=xx],,
|
|
[AC_DEFINE(HAVE_AS_DOT_MODULE, 1,
|
|
[Define if your assembler supports .module.])])
|
|
if test x$gcc_cv_as_mips_dot_module = xno \
|
|
&& test x$with_fp_32 != x; then
|
|
AC_MSG_ERROR(
|
|
[Requesting --with-fp-32= requires assembler support for .module.])
|
|
fi
|
|
|
|
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
|
|
x:
|
|
.word 2
|
|
.text
|
|
.dtprelword x+0x8000],,
|
|
[AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
|
|
[Define if your assembler supports .dtprelword.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support],
|
|
gcc_cv_as_mips_dspr1_mult,,,
|
|
[ .set mips32r2
|
|
.set nodspr2
|
|
.set dsp
|
|
madd $ac3,$4,$5
|
|
maddu $ac3,$4,$5
|
|
msub $ac3,$4,$5
|
|
msubu $ac3,$4,$5
|
|
mult $ac3,$4,$5
|
|
multu $ac3,$4,$5],,
|
|
[AC_DEFINE(HAVE_AS_DSPR1_MULT, 1,
|
|
[Define if your assembler supports DSPR1 mult.])])
|
|
|
|
AC_MSG_CHECKING(assembler and linker for explicit JALR relocation)
|
|
gcc_cv_as_ld_jalr_reloc=no
|
|
if test $gcc_cv_as_mips_explicit_relocs = yes; then
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_as_ld_jalr_reloc=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then
|
|
echo ' .ent x' > conftest.s
|
|
echo 'x: lw $2,%got_disp(y)($3)' >> conftest.s
|
|
echo ' lw $25,%call16(y)($28)' >> conftest.s
|
|
echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s
|
|
echo '1: jalr $25' >> conftest.s
|
|
echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s
|
|
echo '1: jalr $25' >> conftest.s
|
|
echo ' .end x' >> conftest.s
|
|
if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \
|
|
&& $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then
|
|
if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \
|
|
&& $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then
|
|
gcc_cv_as_ld_jalr_reloc=yes
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
fi
|
|
fi
|
|
if test $gcc_cv_as_ld_jalr_reloc = yes; then
|
|
if test x$target_cpu_default = x; then
|
|
target_cpu_default=MASK_RELAX_PIC_CALLS
|
|
else
|
|
target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS"
|
|
fi
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc)
|
|
|
|
AC_CACHE_CHECK([linker for .eh_frame personality relaxation],
|
|
[gcc_cv_ld_mips_personality_relaxation],
|
|
[gcc_cv_ld_mips_personality_relaxation=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 \
|
|
-a "$gcc_cv_gld_minor_version" -ge 21 \
|
|
-o "$gcc_cv_gld_major_version" -gt 2; then
|
|
gcc_cv_ld_mips_personality_relaxation=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x \
|
|
-a x$gcc_cv_ld != x \
|
|
-a x$gcc_cv_readelf != x ; then
|
|
cat > conftest.s <<EOF
|
|
.cfi_startproc
|
|
.cfi_personality 0x80,indirect_ptr
|
|
.ent test
|
|
test:
|
|
nop
|
|
.end test
|
|
.cfi_endproc
|
|
|
|
.section .data,"aw",@progbits
|
|
indirect_ptr:
|
|
.dc.a personality
|
|
EOF
|
|
if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then
|
|
if $gcc_cv_readelf -d conftest 2>&1 \
|
|
| grep TEXTREL > /dev/null 2>&1; then
|
|
:
|
|
elif $gcc_cv_readelf --relocs conftest 2>&1 \
|
|
| grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then
|
|
:
|
|
else
|
|
gcc_cv_ld_mips_personality_relaxation=yes
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest])
|
|
if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then
|
|
AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1,
|
|
[Define if your linker can relax absolute .eh_frame personality
|
|
pointers into PC-relative form.])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE([-mnan= support],
|
|
gcc_cv_as_mips_nan,,
|
|
[-mnan=2008],,,
|
|
[AC_DEFINE(HAVE_AS_NAN, 1,
|
|
[Define if the assembler understands -mnan=.])])
|
|
if test x$gcc_cv_as_mips_nan = xno \
|
|
&& test x$with_nan != x; then
|
|
AC_MSG_ERROR(
|
|
[Requesting --with-nan= requires assembler support for -mnan=])
|
|
fi
|
|
;;
|
|
s390*-*-*)
|
|
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
|
|
gcc_cv_as_s390_gnu_attribute, [2,18,0],,
|
|
[.gnu_attribute 8,1],,
|
|
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
|
|
[Define if your assembler supports .gnu_attribute.])])
|
|
gcc_GAS_CHECK_FEATURE([.machine and .machinemode support],
|
|
gcc_cv_as_s390_machine_machinemode, [2,24,0],,
|
|
[ .machinemode push
|
|
.machinemode pop
|
|
.machine push
|
|
.machine pop],,
|
|
[AC_DEFINE(HAVE_AS_MACHINE_MACHINEMODE, 1,
|
|
[Define if your assembler supports .machine and .machinemode.])])
|
|
gcc_GAS_CHECK_FEATURE([architecture modifiers support],
|
|
gcc_cv_as_s390_architecture_modifiers, [2,26,0],,
|
|
[ .machine z13+vx ],,
|
|
[AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1,
|
|
[Define if your assembler supports architecture modifiers.])])
|
|
;;
|
|
esac
|
|
|
|
# Mips and HP-UX need the GNU assembler.
|
|
# Linux on IA64 might be able to use the Intel assembler.
|
|
|
|
case "$target" in
|
|
mips*-*-* | *-*-hpux* )
|
|
if test x$gas_flag = xyes \
|
|
|| test x"$host" != x"$build" \
|
|
|| test ! -x "$gcc_cv_as" \
|
|
|| "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
|
|
:
|
|
else
|
|
echo "*** This configuration requires the GNU assembler" >&2
|
|
exit 1
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# ??? Not all targets support dwarf2 debug_line, even within a version
|
|
# of gas. Moreover, we need to emit a valid instruction to trigger any
|
|
# info to the output file. So, as supported targets are added to gas 2.11,
|
|
# add some instruction here to (also) show we expect this might work.
|
|
# ??? Once 2.11 is released, probably need to add first known working
|
|
# version to the per-target configury.
|
|
case "$cpu_type" in
|
|
aarch64 | alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze \
|
|
| mips | nios2 | pa | rs6000 | score | sparc | spu | tilegx | tilepro \
|
|
| visium | xstormy16 | xtensa)
|
|
insn="nop"
|
|
;;
|
|
ia64 | s390)
|
|
insn="nop 0"
|
|
;;
|
|
mmix)
|
|
insn="swym 0"
|
|
;;
|
|
esac
|
|
if test x"$insn" != x; then
|
|
conftest_s="\
|
|
.file 1 \"conftest.s\"
|
|
.loc 1 3 0
|
|
$insn"
|
|
gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
|
|
gcc_cv_as_dwarf2_debug_line,
|
|
[elf,2,11,0],, [$conftest_s],
|
|
[if test x$gcc_cv_objdump != x \
|
|
&& $gcc_cv_objdump -h conftest.o 2> /dev/null \
|
|
| grep debug_line > /dev/null 2>&1; then
|
|
gcc_cv_as_dwarf2_debug_line=yes
|
|
fi])
|
|
|
|
# The .debug_line file table must be in the exact order that
|
|
# we specified the files, since these indices are also used
|
|
# by DW_AT_decl_file. Approximate this test by testing if
|
|
# the assembler bitches if the same index is assigned twice.
|
|
gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
|
|
gcc_cv_as_dwarf2_file_buggy,,,
|
|
[ .file 1 "foo.s"
|
|
.file 1 "bar.s"])
|
|
|
|
if test $gcc_cv_as_dwarf2_debug_line = yes \
|
|
&& test $gcc_cv_as_dwarf2_file_buggy = no; then
|
|
AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
|
|
[Define if your assembler supports dwarf2 .file/.loc directives,
|
|
and preserves file table indices exactly as given.])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
|
|
gcc_cv_as_gdwarf2_flag,
|
|
[elf,2,11,0], [--gdwarf2], [$insn],,
|
|
[AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gdwarf2 option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([--gstabs option],
|
|
gcc_cv_as_gstabs_flag,
|
|
[elf,2,11,0], [--gstabs], [$insn],,
|
|
[AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
|
|
[Define if your assembler supports the --gstabs option.])])
|
|
|
|
gcc_GAS_CHECK_FEATURE([--debug-prefix-map option],
|
|
gcc_cv_as_debug_prefix_map_flag,
|
|
[2,18,0], [--debug-prefix-map /a=/b], [$insn],,
|
|
[AC_DEFINE(HAVE_AS_DEBUG_PREFIX_MAP, 1,
|
|
[Define if your assembler supports the --debug-prefix-map option.])])
|
|
fi
|
|
|
|
gcc_GAS_CHECK_FEATURE([compressed debug sections],
|
|
gcc_cv_as_compress_debug,,[--compress-debug-sections],,
|
|
[# gas compiled without zlib cannot compress debug sections and warns
|
|
# about it, but still exits successfully. So check for this, too.
|
|
if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null
|
|
then
|
|
gcc_cv_as_compress_debug=0
|
|
elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1
|
|
then
|
|
gcc_cv_as_compress_debug=1
|
|
gcc_cv_as_compress_debug_option="--compress-debug-sections"
|
|
gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections"
|
|
else
|
|
gcc_cv_as_compress_debug=0
|
|
# FIXME: Future gas versions will support ELF gABI style via
|
|
# --compress-debug-sections[=type].
|
|
fi])
|
|
AC_DEFINE_UNQUOTED(HAVE_AS_COMPRESS_DEBUG, $gcc_cv_as_compress_debug,
|
|
[Define to the level of your assembler's compressed debug section support.])
|
|
AC_DEFINE_UNQUOTED(AS_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_compress_debug_option",
|
|
[Define to the assembler option to enable compressed debug sections.])
|
|
AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$gcc_cv_as_no_compress_debug_option",
|
|
[Define to the assembler option to disable compressed debug sections.])
|
|
|
|
gcc_GAS_CHECK_FEATURE([.lcomm with alignment], gcc_cv_as_lcomm_with_alignment,
|
|
,,
|
|
[.lcomm bar,4,16],,
|
|
[AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
|
|
[Define if your assembler supports .lcomm with an alignment field.])])
|
|
|
|
if test x$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, "$prefix/include",
|
|
[Define to PREFIX/include if cpp should also search that directory.])
|
|
fi
|
|
|
|
# Determine the version of glibc, if any, used on the target.
|
|
AC_MSG_CHECKING([for target glibc version])
|
|
AC_ARG_WITH([glibc-version],
|
|
[AS_HELP_STRING([--with-glibc-version=M.N],
|
|
[assume GCC used with glibc version M.N or later])], [
|
|
if [echo "$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.$glibc_version_minor])
|
|
AC_DEFINE_UNQUOTED([TARGET_GLIBC_MAJOR], [$glibc_version_major],
|
|
[GNU C Library major version number used on the target, or 0.])
|
|
AC_DEFINE_UNQUOTED([TARGET_GLIBC_MINOR], [$glibc_version_minor],
|
|
[GNU C Library minor version number used on the target, or 0.])
|
|
|
|
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])],
|
|
[case $enable_gnu_unique_object in
|
|
yes | no) ;;
|
|
*) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
|
|
Valid choices are 'yes' and 'no'.]) ;;
|
|
esac],
|
|
[gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
|
|
[elf,2,19,52],,
|
|
[.type foo, '$target_type_format_char'gnu_unique_object],,
|
|
# We need to unquote above to to use the definition from config.gcc.
|
|
# Also check for ld.so support, i.e. glibc 2.11 or higher.
|
|
[GCC_GLIBC_VERSION_GTE_IFELSE([2], [11], [enable_gnu_unique_object=yes], )]
|
|
)])
|
|
if test x$enable_gnu_unique_object = xyes; then
|
|
AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
|
|
[Define if your assembler supports @gnu_unique_object.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler for tolerance to line number 0],
|
|
[gcc_cv_as_line_zero],
|
|
[gcc_cv_as_line_zero=no
|
|
if test $in_tree_gas = yes; then
|
|
gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
|
|
elif test "x$gcc_cv_as" != x; then
|
|
{ echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
|
|
if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
|
|
test "x`cat conftest.out`" = x
|
|
then
|
|
gcc_cv_as_line_zero=yes
|
|
else
|
|
echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.s >&AS_MESSAGE_LOG_FD
|
|
echo "configure: error output was" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.out >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
rm -f conftest.o conftest.s conftest.out
|
|
fi])
|
|
if test "x$gcc_cv_as_line_zero" = xyes; then
|
|
AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
|
|
[Define if the assembler won't complain about a line such as # 0 "" 2.])
|
|
fi
|
|
|
|
AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
|
|
gcc_cv_ld_eh_frame_hdr=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_eh_frame_hdr=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
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"$gcc_cv_ld_eh_frame_hdr" = xyes; then
|
|
AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
|
|
[Define if your linker supports .eh_frame_hdr.])
|
|
fi
|
|
AC_MSG_RESULT($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 $in_tree_ld = yes ; then
|
|
case "$target" in
|
|
# Full PIE support on Solaris was only introduced in gld 2.26.
|
|
*-*-solaris2*) gcc_gld_pie_min_version=26 ;;
|
|
*) gcc_gld_pie_min_version=15 ;;
|
|
esac
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge "$gcc_gld_pie_min_version" -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_pie=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports -pie option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
|
|
gcc_cv_ld_pie=yes
|
|
case "$target" in
|
|
*-*-solaris2*)
|
|
if echo "$ld_ver" | grep GNU > /dev/null \
|
|
&& test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then
|
|
gcc_cv_ld_pie=no
|
|
fi
|
|
;;
|
|
esac
|
|
else
|
|
case "$target" in
|
|
*-*-solaris2.1[[1-9]]*)
|
|
# Solaris 11.x and Solaris 12 added PIE support.
|
|
if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
|
|
gcc_cv_ld_pie=yes
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
if test x"$gcc_cv_ld_pie" = xyes; then
|
|
AC_DEFINE(HAVE_LD_PIE, 1,
|
|
[Define if your linker supports PIE option.])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_pie)
|
|
|
|
AC_MSG_CHECKING(linker PIE support with copy reloc)
|
|
gcc_cv_ld_pie_copyreloc=no
|
|
if test $gcc_cv_ld_pie = yes ; then
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then
|
|
gcc_cv_ld_pie_copyreloc=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
|
|
# Check if linker supports -pie option with copy reloc
|
|
case "$target" in
|
|
i?86-*-linux* | x86_64-*-linux*)
|
|
cat > conftest1.s <<EOF
|
|
.globl a_glob
|
|
.data
|
|
.type a_glob, @object
|
|
.size a_glob, 4
|
|
a_glob:
|
|
.long 2
|
|
EOF
|
|
cat > conftest2.s <<EOF
|
|
.text
|
|
.globl main
|
|
.type main, @function
|
|
main:
|
|
movl %eax, a_glob(%rip)
|
|
.size main, .-main
|
|
.globl ptr
|
|
.section .data.rel,"aw",@progbits
|
|
.type ptr, @object
|
|
ptr:
|
|
.quad a_glob
|
|
EOF
|
|
if $gcc_cv_as --64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -shared -melf_x86_64 -o conftest1.so conftest1.o > /dev/null 2>&1 \
|
|
&& $gcc_cv_as --64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld -pie -melf_x86_64 -o conftest conftest2.o conftest1.so > /dev/null 2>&1; then
|
|
gcc_cv_ld_pie_copyreloc=yes
|
|
fi
|
|
rm -f conftest conftest1.so conftest1.o conftest2.o conftest1.s conftest2.s
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_LD_PIE_COPYRELOC,
|
|
[`if test x"$gcc_cv_ld_pie_copyreloc" = xyes; then echo 1; else echo 0; fi`],
|
|
[Define 0/1 if your linker supports -pie option with copy reloc.])
|
|
AC_MSG_RESULT($gcc_cv_ld_pie_copyreloc)
|
|
|
|
AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
fi
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
|
|
cat > conftest.s <<EOF
|
|
.section .text
|
|
.globl _start
|
|
.type _start, @function
|
|
_start:
|
|
.long foo
|
|
.size _start, .-_start
|
|
.section .text.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
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
elif $gcc_cv_objdump -h conftest 2> /dev/null \
|
|
| grep gcc_except_table > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
# If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
|
|
if test x$gcc_cv_as_comdat_group != xyes; then
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
cat > conftest.s <<EOF
|
|
.section .text
|
|
.globl _start
|
|
.type _start, @function
|
|
_start:
|
|
.long foo
|
|
.size _start, .-_start
|
|
.section .gnu.linkonce.t.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
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
elif $gcc_cv_objdump -h conftest 2> /dev/null \
|
|
| grep gcc_except_table > /dev/null; then
|
|
gcc_cv_ld_eh_gc_sections=yes
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f conftest.s conftest.o conftest
|
|
fi
|
|
case "$target" in
|
|
hppa*-*-linux*)
|
|
# ??? This apparently exposes a binutils bug with PC-relative relocations.
|
|
gcc_cv_ld_eh_gc_sections=no
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_ld_eh_gc_sections = xyes; then
|
|
AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
|
|
[Define if your linker supports garbage collection of
|
|
sections in presence of EH frames.])
|
|
fi
|
|
AC_MSG_RESULT($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)
|
|
|
|
AC_MSG_CHECKING(linker for compressed debug sections)
|
|
# gold/gld support compressed debug sections since binutils 2.19/2.21
|
|
if test $in_tree_ld = yes ; then
|
|
gcc_cv_ld_compress_debug=0
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then
|
|
gcc_cv_ld_compress_debug=2
|
|
gcc_cv_ld_compress_debug_option="--compress-debug-sections"
|
|
elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_compress_debug=1
|
|
fi
|
|
elif echo "$ld_ver" | grep GNU > /dev/null; then
|
|
gcc_cv_ld_compress_debug=1
|
|
if test 0"$ld_date" -lt 20050308; then
|
|
if test -n "$ld_date"; then
|
|
# If there was date string, but was earlier than 2005-03-08, fail
|
|
gcc_cv_ld_compress_debug=0
|
|
elif test "$ld_vers_major" -lt 2; then
|
|
gcc_cv_ld_compress_debug=0
|
|
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then
|
|
gcc_cv_ld_compress_debug=0
|
|
fi
|
|
fi
|
|
if test $ld_is_gold = yes; then
|
|
gcc_cv_ld_compress_debug=2
|
|
gcc_cv_ld_compress_debug_option="--compress-debug-sections"
|
|
fi
|
|
else
|
|
changequote(,)dnl
|
|
case "${target}" in
|
|
*-*-solaris2*)
|
|
# Introduced in Solaris 11.2.
|
|
if $gcc_cv_ld --help 2>&1 | grep -- '-z compress-sections' > /dev/null; then
|
|
gcc_cv_ld_compress_debug=3
|
|
gcc_cv_ld_compress_debug_option="-z compress-sections"
|
|
else
|
|
gcc_cv_ld_compress_debug=0
|
|
fi
|
|
;;
|
|
*)
|
|
# Assume linkers other than GNU ld don't support compessed debug
|
|
# sections.
|
|
gcc_cv_ld_compress_debug=0
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
fi
|
|
AC_DEFINE_UNQUOTED(HAVE_LD_COMPRESS_DEBUG, $gcc_cv_ld_compress_debug,
|
|
[Define to the level of your linker's compressed debug section support.])
|
|
AC_DEFINE_UNQUOTED(LD_COMPRESS_DEBUG_OPTION, "$gcc_cv_ld_compress_debug_option",
|
|
[Define to the linker option to enable compressed debug sections.])
|
|
AC_MSG_RESULT($gcc_cv_ld_compress_debug)
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
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 $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_as_needed=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; 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/--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
|
|
|
|
AC_MSG_CHECKING(linker mapfile support for clearing hardware capabilities)
|
|
saved_LDFLAGS="$LDFLAGS"
|
|
for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do
|
|
LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map"
|
|
AC_LINK_IFELSE([int main(void) {return 0;}],
|
|
[gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no])
|
|
done
|
|
LDFLAGS="$saved_LDFLAGS"
|
|
if test "x$gcc_cv_ld_clearcap" = xyes; then
|
|
AC_DEFINE([HAVE_LD_CLEARCAP], 1,
|
|
[Define if the linker supports clearing hardware capabilities via mapfile.])
|
|
AC_CONFIG_LINKS([clearcap.map:${srcdir}/config/$clearcap_map])
|
|
fi
|
|
AC_MSG_RESULT($gcc_cv_ld_clearcap)
|
|
|
|
case "$target:$tm_file" in
|
|
powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
|
|
case "$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 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
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
|
|
cat > conftest1.s <<EOF
|
|
.text
|
|
bl .foo
|
|
EOF
|
|
cat > conftest2.s <<EOF
|
|
.section ".opd","aw"
|
|
.align 3
|
|
.globl foo
|
|
.type foo,@function
|
|
foo:
|
|
.quad .LEfoo,.TOC.@tocbase,0
|
|
.text
|
|
.LEfoo:
|
|
blr
|
|
.size foo,.-.LEfoo
|
|
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 $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_no_dot_syms=yes
|
|
fi
|
|
rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
|
|
fi
|
|
])
|
|
if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
|
|
AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
|
|
[Define if your PowerPC64 linker only needs function descriptor syms.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK(linker large toc support,
|
|
gcc_cv_ld_large_toc,
|
|
[gcc_cv_ld_large_toc=no
|
|
if test 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
|
|
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
|
|
cat > conftest.s <<EOF
|
|
.section ".tbss","awT",@nobits
|
|
.align 3
|
|
ie0: .space 8
|
|
.global _start
|
|
.text
|
|
_start:
|
|
addis 9,13,ie0@got@tprel@ha
|
|
ld 9,ie0@got@tprel@l(9)
|
|
EOF
|
|
if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_large_toc=yes
|
|
fi
|
|
rm -f conftest conftest.o conftest.s
|
|
fi
|
|
])
|
|
if test x"$gcc_cv_ld_large_toc" = xyes; then
|
|
AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
|
|
[Define if your PowerPC64 linker supports a large TOC.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK(linker toc pointer alignment,
|
|
gcc_cv_ld_toc_align,
|
|
[if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then
|
|
cat > conftest.s <<EOF
|
|
.global _start
|
|
.text
|
|
_start:
|
|
addis 9,2,x@got@ha
|
|
.section .data.rel.ro,"aw",@progbits
|
|
.p2align 16
|
|
.space 32768
|
|
x: .quad .TOC.
|
|
EOF
|
|
if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
|
|
&& $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then
|
|
gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'`
|
|
fi
|
|
rm -f conftest conftest.o conftest.s
|
|
fi
|
|
])
|
|
if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then
|
|
AC_DEFINE_UNQUOTED(POWERPC64_TOC_POINTER_ALIGNMENT, $gcc_cv_ld_toc_align,
|
|
[Define to .TOC. alignment forced by your linker.])
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
case "$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 $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1; then
|
|
gcc_cv_ld_large_toc=yes
|
|
fi
|
|
rm -f conftest conftest.o conftest.s
|
|
fi
|
|
])
|
|
if test x"$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
|
|
|
|
AC_CACHE_CHECK(linker --build-id support,
|
|
gcc_cv_ld_buildid,
|
|
[gcc_cv_ld_buildid=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a \
|
|
"$gcc_cv_gld_minor_version" -ge 18 -o \
|
|
"$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_buildid=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld --help 2>/dev/null | grep build-id > /dev/null; then
|
|
gcc_cv_ld_buildid=yes
|
|
fi
|
|
fi])
|
|
if test x"$gcc_cv_ld_buildid" = xyes; then
|
|
AC_DEFINE(HAVE_LD_BUILDID, 1,
|
|
[Define if your linker supports --build-id.])
|
|
fi
|
|
|
|
AC_ARG_ENABLE(linker-build-id,
|
|
[AS_HELP_STRING([--enable-linker-build-id],
|
|
[compiler will always pass --build-id to linker])],
|
|
[],
|
|
enable_linker_build_id=no)
|
|
|
|
if test x"$enable_linker_build_id" = xyes; then
|
|
if test x"$gcc_cv_ld_buildid" = xyes; then
|
|
AC_DEFINE(ENABLE_LD_BUILDID, 1,
|
|
[Define if gcc should always pass --build-id to linker.])
|
|
else
|
|
AC_MSG_WARN(--build-id is not supported by your linker; --enable-linker-build-id ignored)
|
|
fi
|
|
fi
|
|
|
|
# In binutils 2.21, GNU ld gained support for new emulations fully
|
|
# supporting the Solaris 2 ABI. Detect their presence in the linker used.
|
|
AC_CACHE_CHECK(linker *_sol2 emulation support,
|
|
gcc_cv_ld_sol2_emulation,
|
|
[gcc_cv_ld_sol2_emulation=no
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a \
|
|
"$gcc_cv_gld_minor_version" -ge 21 -o \
|
|
"$gcc_cv_gld_major_version" -gt 2 \
|
|
&& test $in_tree_ld_is_elf = yes; then
|
|
gcc_cv_ld_sol2_emulation=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \
|
|
grep _sol2 > /dev/null; then
|
|
gcc_cv_ld_sol2_emulation=yes
|
|
fi
|
|
fi])
|
|
if test x"$gcc_cv_ld_sol2_emulation" = xyes; then
|
|
AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1,
|
|
[Define if your linker supports the *_sol2 emulations.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK(linker --sysroot support,
|
|
gcc_cv_ld_sysroot,
|
|
[gcc_cv_ld_sysroot=no
|
|
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 ; then
|
|
gcc_cv_ld_sysroot=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
|
|
gcc_cv_ld_sysroot=yes
|
|
fi
|
|
fi])
|
|
if test x"$gcc_cv_ld_sysroot" = xyes; then
|
|
AC_DEFINE(HAVE_LD_SYSROOT, 1,
|
|
[Define if your linker supports --sysroot.])
|
|
fi
|
|
|
|
case $target in
|
|
*-*-solaris2*)
|
|
# Check for system-provided CRTs on Solaris 11.x and Solaris 12.
|
|
AC_CACHE_CHECK([system-provided CRTs on Solaris],
|
|
gcc_cv_solaris_crts,
|
|
[gcc_cv_solaris_crts=no
|
|
if test x$host != x$target; then
|
|
if test "x$with_sysroot" = xyes; then
|
|
target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root"
|
|
else
|
|
target_sysroot="${with_sysroot}"
|
|
fi
|
|
fi
|
|
target_libdir="$target_sysroot/usr/lib"
|
|
# At the time they were added, gcrt1.o became a symlink for backwards
|
|
# compatibility on x86, while crt1.o was added on sparc, so check for that.
|
|
case $target in
|
|
i?86-*-solaris2* | x86_64-*-solaris2*)
|
|
if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi
|
|
;;
|
|
sparc*-*-solaris2*)
|
|
if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi
|
|
;;
|
|
esac])
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_solaris_crts = xyes; then
|
|
AC_DEFINE(HAVE_SOLARIS_CRTS, 1,
|
|
[Define if the system-provided CRTs are present on Solaris.])
|
|
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
|
|
*-*-musl*)
|
|
# All versions of musl provide stack protector
|
|
gcc_cv_libc_provides_ssp=yes;;
|
|
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
|
|
# glibc 2.4 and later provides __stack_chk_fail and
|
|
# either __stack_chk_guard, or TLS access to stack guard canary.
|
|
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[ ]+__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
|
|
# all versions of Bionic support stack protector
|
|
elif test -f $target_header_dir/sys/cdefs.h \
|
|
&& $EGREP '^[ ]*#[ ]*define[ ]+__BIONIC__[ ]+1' \
|
|
$target_header_dir/sys/cdefs.h > /dev/null; then
|
|
gcc_cv_libc_provides_ssp=yes
|
|
fi]])
|
|
;;
|
|
*-*-gnu*)
|
|
# Avoid complicated tests (see
|
|
# <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
|
|
# simply assert that glibc does provide this, which is true for all
|
|
# realistically usable GNU/Hurd configurations.
|
|
# All supported versions of musl provide it as well
|
|
gcc_cv_libc_provides_ssp=yes;;
|
|
*-*-darwin* | *-*-freebsd*)
|
|
AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
|
|
[echo "no __stack_chk_fail on this target"])
|
|
;;
|
|
*) gcc_cv_libc_provides_ssp=no ;;
|
|
esac])
|
|
|
|
if test x$gcc_cv_libc_provides_ssp = xyes; then
|
|
AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
|
|
[Define if your target C library provides stack protector support])
|
|
fi
|
|
|
|
# Check whether --enable-default-ssp was given.
|
|
AC_ARG_ENABLE(default-ssp,
|
|
[AS_HELP_STRING([--enable-default-ssp],
|
|
[enable Stack Smashing Protection as default])],[
|
|
if test x$gcc_cv_libc_provides_ssp = xyes; then
|
|
case "$target" in
|
|
ia64*-*-*) enable_default_ssp=no ;;
|
|
*) enable_default_ssp=$enableval ;;
|
|
esac
|
|
else
|
|
enable_default_ssp=no
|
|
fi],
|
|
enable_default_ssp=no)
|
|
if test x$enable_default_ssp = xyes ; then
|
|
AC_DEFINE(ENABLE_DEFAULT_SSP, 1,
|
|
[Define if your target supports default stack protector and it is enabled.])
|
|
fi
|
|
AC_SUBST([enable_default_ssp])
|
|
|
|
# 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 "$target" in
|
|
powerpc*-*-linux* | \
|
|
sparc*-*-linux* | \
|
|
s390*-*-linux* | \
|
|
alpha*-*-linux*)
|
|
AC_ARG_WITH(long-double-128,
|
|
[AS_HELP_STRING([--with-long-double-128],
|
|
[use 128-bit long double by default])],
|
|
gcc_cv_target_ldbl128="$with_long_double_128",
|
|
[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
|
|
AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
|
|
[Define if TFmode long double should be the default])
|
|
fi
|
|
|
|
# Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP
|
|
# values in the TCB. Currently, only GLIBC 2.23 and later support this.
|
|
gcc_cv_libc_provides_hwcap_in_tcb=no
|
|
case "$target" in
|
|
powerpc*-*-linux*)
|
|
GCC_GLIBC_VERSION_GTE_IFELSE([2], [23], [gcc_cv_libc_provides_hwcap_in_tcb=yes], )
|
|
;;
|
|
esac
|
|
if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then
|
|
AC_DEFINE(TARGET_LIBC_PROVIDES_HWCAP_IN_TCB, 1,
|
|
[Define if your target C Library provides the AT_HWCAP value in the TCB])
|
|
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
|
|
;;
|
|
*-*-dragonfly* | *-*-freebsd*)
|
|
if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then
|
|
gcc_cv_target_dl_iterate_phdr=yes
|
|
else
|
|
gcc_cv_target_dl_iterate_phdr=no
|
|
fi
|
|
;;
|
|
*-linux-musl*)
|
|
gcc_cv_target_dl_iterate_phdr=yes
|
|
;;
|
|
esac
|
|
GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
|
|
if test x$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($gcc_cv_target_dl_iterate_phdr)
|
|
|
|
# We no longer support different GC mechanisms. Emit an error if
|
|
# the user configures with --with-gc.
|
|
AC_ARG_WITH(gc,
|
|
[AS_HELP_STRING([--with-gc={page,zone}],
|
|
[this option is not supported anymore. It used to choose
|
|
the garbage collection mechanism to use with the compiler])],
|
|
[AC_MSG_ERROR([Configure option --with-gc is only supported up to GCC 4.7.x])],
|
|
[])
|
|
|
|
# Libraries to use on the host. This will normally be set by the top
|
|
# level Makefile. Here we simply capture the value for our Makefile.
|
|
if test -z "${HOST_LIBS+set}"; then
|
|
HOST_LIBS=
|
|
fi
|
|
AC_SUBST(HOST_LIBS)
|
|
|
|
# Use the system's zlib library.
|
|
AM_ZLIB
|
|
|
|
dnl Very limited version of automake's enable-maintainer-mode
|
|
|
|
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
|
|
dnl maintainer-mode is disabled by default
|
|
AC_ARG_ENABLE(maintainer-mode,
|
|
[AS_HELP_STRING([--enable-maintainer-mode],
|
|
[enable make rules and dependencies not useful
|
|
(and sometimes confusing) to the casual installer])],
|
|
maintainer_mode=$enableval,
|
|
maintainer_mode=no)
|
|
|
|
AC_MSG_RESULT($maintainer_mode)
|
|
|
|
if test "$maintainer_mode" = "yes"; then
|
|
MAINT=''
|
|
else
|
|
MAINT='#'
|
|
fi
|
|
AC_SUBST(MAINT)dnl
|
|
|
|
dnl Whether to prevent multiple front-ends from linking at the same time
|
|
|
|
AC_MSG_CHECKING([whether to avoid linking multiple front-ends at once])
|
|
AC_ARG_ENABLE(link-mutex,
|
|
[AS_HELP_STRING([--enable-link-mutex],
|
|
[avoid linking multiple front-ends at once to avoid thrashing
|
|
on the build machine])],
|
|
do_link_mutex=$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
|
|
# --------------
|
|
|
|
# Make empty files to contain the specs and options for each language.
|
|
# Then add #include lines to for a compiler that has specs and/or options.
|
|
|
|
subdirs=
|
|
lang_opt_files=
|
|
lang_specs_files=
|
|
lang_tree_files=
|
|
# These (without "all_") are set in each config-lang.in.
|
|
# `language' must be a single word so is spelled singularly.
|
|
all_languages=
|
|
all_compilers=
|
|
all_outputs='Makefile'
|
|
# List of language makefile fragments.
|
|
all_lang_makefrags=
|
|
# Additional files for gengtype
|
|
all_gtfiles="$target_gtfiles"
|
|
|
|
# These are the languages that are set in --enable-languages,
|
|
# and are available in the GCC tree.
|
|
all_selected_languages=
|
|
|
|
# Add the language fragments.
|
|
# Languages are added via two mechanisms. Some information must be
|
|
# recorded in makefile variables, these are defined in config-lang.in.
|
|
# We accumulate them and plug them into the main Makefile.
|
|
# The other mechanism is a set of hooks for each of the main targets
|
|
# like `clean', `install', etc.
|
|
|
|
language_hooks="Make-hooks"
|
|
|
|
for lang in ${srcdir}/*/config-lang.in
|
|
do
|
|
changequote(,)dnl
|
|
test "$lang" = "${srcdir}/*/config-lang.in" && continue
|
|
|
|
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
|
|
if test "x$lang_alias" = x
|
|
then
|
|
echo "$lang doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
|
|
subdirs="$subdirs $subdir"
|
|
|
|
# $gcc_subdir is where the gcc integration files are to be found
|
|
# for a language, both for internal compiler purposes (compiler
|
|
# sources implementing front-end to GCC tree converters), and for
|
|
# build infrastructure purposes (Make-lang.in, etc.)
|
|
#
|
|
# This will be <subdir> (relative to $srcdir) if a line like
|
|
# gcc_subdir="<subdir>" or gcc_subdir=<subdir>
|
|
# is found in <langdir>/config-lang.in, and will remain <langdir>
|
|
# otherwise.
|
|
#
|
|
# Except for the language alias (fetched above), the regular
|
|
# "config-lang.in" contents are always retrieved from $gcc_subdir,
|
|
# so a <langdir>/config-lang.in setting gcc_subdir typically sets
|
|
# only this and the language alias.
|
|
|
|
gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang`
|
|
if [ "$gcc_subdir" = "" ]; then
|
|
gcc_subdir="$subdir"
|
|
fi
|
|
|
|
case ",$enable_languages," in
|
|
*,$lang_alias,*)
|
|
all_selected_languages="$all_selected_languages $lang_alias"
|
|
if test -f $srcdir/$gcc_subdir/lang-specs.h; then
|
|
lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h"
|
|
fi
|
|
;;
|
|
esac
|
|
changequote([,])dnl
|
|
|
|
language=
|
|
boot_language=
|
|
compilers=
|
|
outputs=
|
|
gtfiles=
|
|
subdir_requires=
|
|
. ${srcdir}/$gcc_subdir/config-lang.in
|
|
if test "x$language" = x
|
|
then
|
|
echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
ok=:
|
|
case ",$enable_languages," in
|
|
*,$lang_alias,*) ;;
|
|
*)
|
|
for i in $subdir_requires; do
|
|
test -f "${srcdir}/$i/config-lang.in" && continue
|
|
ok=false
|
|
break
|
|
done
|
|
;;
|
|
esac
|
|
$ok || continue
|
|
|
|
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
|
|
if test -f $srcdir/$gcc_subdir/lang.opt; then
|
|
lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
|
|
all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt"
|
|
fi
|
|
if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
|
|
lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
|
|
fi
|
|
all_languages="$all_languages $language"
|
|
all_compilers="$all_compilers $compilers"
|
|
all_outputs="$all_outputs $outputs"
|
|
all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
|
|
case ",$enable_languages," in
|
|
*,lto,*)
|
|
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
|
|
enable_lto=yes
|
|
AC_SUBST(enable_lto)
|
|
;;
|
|
*) ;;
|
|
esac
|
|
done
|
|
|
|
check_languages=
|
|
for language in $all_selected_languages
|
|
do
|
|
check_languages="$check_languages check-$language"
|
|
done
|
|
|
|
# We link each language in with a set of hooks, reached indirectly via
|
|
# lang.${target}. Only do so for selected languages.
|
|
|
|
rm -f Make-hooks
|
|
touch Make-hooks
|
|
target_list="all.cross start.encap rest.encap tags \
|
|
install-common install-man install-info install-pdf install-html dvi \
|
|
pdf html uninstall info man srcextra srcman srcinfo \
|
|
mostlyclean clean distclean maintainer-clean install-plugin"
|
|
|
|
for t in $target_list
|
|
do
|
|
x=
|
|
for lang in $all_selected_languages
|
|
do
|
|
x="$x $lang.$t"
|
|
done
|
|
echo "lang.$t: $x" >> Make-hooks
|
|
done
|
|
|
|
# --------
|
|
# Option include files
|
|
# --------
|
|
|
|
${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk
|
|
option_includes="option-includes.mk"
|
|
AC_SUBST_FILE(option_includes)
|
|
|
|
# --------
|
|
# UNSORTED
|
|
# --------
|
|
|
|
# Create .gdbinit.
|
|
|
|
echo "dir ." > .gdbinit
|
|
echo "dir ${srcdir}" >> .gdbinit
|
|
if test x$gdb_needs_out_file_path = xyes
|
|
then
|
|
echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
|
|
fi
|
|
if test "x$subdirs" != x; then
|
|
for s in $subdirs
|
|
do
|
|
echo "dir ${srcdir}/$s" >> .gdbinit
|
|
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(dollar)
|
|
|
|
# Find a directory in which to install a shared libgcc.
|
|
|
|
AC_ARG_ENABLE(version-specific-runtime-libs,
|
|
[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(srcdir)
|
|
AC_SUBST(all_compilers)
|
|
AC_SUBST(all_gtfiles)
|
|
AC_SUBST(all_lang_makefrags)
|
|
AC_SUBST(all_languages)
|
|
AC_SUBST(all_selected_languages)
|
|
AC_SUBST(build_exeext)
|
|
AC_SUBST(build_install_headers_dir)
|
|
AC_SUBST(build_xm_file_list)
|
|
AC_SUBST(build_xm_include_list)
|
|
AC_SUBST(build_xm_defines)
|
|
AC_SUBST(build_file_translate)
|
|
AC_SUBST(check_languages)
|
|
AC_SUBST(cpp_install_dir)
|
|
AC_SUBST(xmake_file)
|
|
AC_SUBST(tmake_file)
|
|
AC_SUBST(TM_ENDIAN_CONFIG)
|
|
AC_SUBST(TM_MULTILIB_CONFIG)
|
|
AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
|
|
AC_SUBST(extra_gcc_objs)
|
|
AC_SUBST(user_headers_inc_next_pre)
|
|
AC_SUBST(user_headers_inc_next_post)
|
|
AC_SUBST(extra_headers_list)
|
|
AC_SUBST(extra_objs)
|
|
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(host_xm_defines)
|
|
AC_SUBST(out_host_hook_obj)
|
|
AC_SUBST(install)
|
|
AC_SUBST(lang_opt_files)
|
|
AC_SUBST(lang_specs_files)
|
|
AC_SUBST(lang_tree_files)
|
|
AC_SUBST(local_prefix)
|
|
AC_SUBST(md_file)
|
|
AC_SUBST(objc_boehm_gc)
|
|
AC_SUBST(out_file)
|
|
AC_SUBST(out_object_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)
|
|
AC_SUBST(tm_p_file_list)
|
|
AC_SUBST(tm_p_include_list)
|
|
AC_SUBST(xm_file_list)
|
|
AC_SUBST(xm_include_list)
|
|
AC_SUBST(xm_defines)
|
|
AC_SUBST(use_gcc_stdint)
|
|
AC_SUBST(c_target_objs)
|
|
AC_SUBST(cxx_target_objs)
|
|
AC_SUBST(fortran_target_objs)
|
|
AC_SUBST(target_cpu_default)
|
|
|
|
AC_SUBST_FILE(language_hooks)
|
|
|
|
# Echo link setup.
|
|
if test x${build} = x${host} ; then
|
|
if test x${host} = x${target} ; then
|
|
echo "Links are now set up to build a native compiler for ${target}." 1>&2
|
|
else
|
|
echo "Links are now set up to build a cross-compiler" 1>&2
|
|
echo " from ${host} to ${target}." 1>&2
|
|
fi
|
|
else
|
|
if test x${host} = x${target} ; then
|
|
echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
|
|
echo " for ${target}." 1>&2
|
|
else
|
|
echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
|
|
echo " from ${host} to ${target}." 1>&2
|
|
fi
|
|
fi
|
|
|
|
AC_ARG_VAR(GMPLIBS,[How to link GMP])
|
|
AC_ARG_VAR(GMPINC,[How to find GMP include files])
|
|
|
|
AC_ARG_VAR(ISLLIBS,[How to link isl])
|
|
AC_ARG_VAR(ISLINC,[How to find isl include files])
|
|
if test "x${ISLLIBS}" != "x" ; then
|
|
AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.])
|
|
fi
|
|
|
|
# Check whether isl_options_set_schedule_serialize_sccs is available;
|
|
# it's new in isl 0.15.
|
|
if test "x${ISLLIBS}" != "x" ; then
|
|
saved_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS="$CXXFLAGS $ISLINC $GMPINC"
|
|
saved_LIBS="$LIBS"
|
|
LIBS="$LIBS $ISLLIBS $GMPLIBS"
|
|
|
|
AC_MSG_CHECKING([Checking for isl_options_set_schedule_serialize_sccs])
|
|
AC_TRY_LINK([#include <isl/schedule.h>],
|
|
[isl_options_set_schedule_serialize_sccs (NULL, 0);],
|
|
[ac_has_isl_options_set_schedule_serialize_sccs=yes],
|
|
[ac_has_isl_options_set_schedule_serialize_sccs=no])
|
|
AC_MSG_RESULT($ac_has_isl_options_set_schedule_serialize_sccs)
|
|
|
|
LIBS="$saved_LIBS"
|
|
CXXFLAGS="$saved_CXXFLAGS"
|
|
|
|
if test x"$ac_has_isl_options_set_schedule_serialize_sccs" = x"yes"; then
|
|
AC_DEFINE(HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS, 1,
|
|
[Define if isl_options_set_schedule_serialize_sccs exists.])
|
|
fi
|
|
fi
|
|
|
|
GCC_ENABLE_PLUGINS
|
|
AC_SUBST(pluginlibs)
|
|
AC_SUBST(enable_plugin)
|
|
if test x"$enable_plugin" = x"yes"; then
|
|
AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
|
|
fi
|
|
|
|
|
|
# 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])],
|
|
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
|
|
|
|
# Specify what should be the default of -fdiagnostics-color option.
|
|
AC_ARG_WITH([diagnostics-color],
|
|
[AC_HELP_STRING([--with-diagnostics-color={never,auto,auto-if-env,always}],
|
|
[specify the default of -fdiagnostics-color option
|
|
auto-if-env stands for -fdiagnostics-color=auto if
|
|
GCC_COLOR environment variable is present and
|
|
-fdiagnostics-color=never otherwise])],
|
|
[case x"$withval" in
|
|
xnever)
|
|
DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_NO
|
|
;;
|
|
xauto)
|
|
DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO
|
|
;;
|
|
xauto-if-env)
|
|
DIAGNOSTICS_COLOR_DEFAULT=-1
|
|
;;
|
|
xalways)
|
|
DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_YES
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-color])
|
|
;;
|
|
esac],
|
|
[DIAGNOSTICS_COLOR_DEFAULT=DIAGNOSTICS_COLOR_AUTO])
|
|
AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT,
|
|
[The default for -fdiagnostics-color option])
|
|
|
|
# Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit
|
|
# of jit/jit-playback.c.
|
|
cat > gcc-driver-name.h <<EOF
|
|
#define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_BASEVER}${exeext}"
|
|
EOF
|
|
|
|
# Check whether --enable-default-pie was given.
|
|
AC_ARG_ENABLE(default-pie,
|
|
[AS_HELP_STRING([--enable-default-pie],
|
|
[enable Position Independent Executable as default])],
|
|
enable_default_pie=$enableval,
|
|
enable_default_pie=no)
|
|
if test x$enable_default_pie = xyes ; then
|
|
AC_DEFINE(ENABLE_DEFAULT_PIE, 1,
|
|
[Define if your target supports default PIE and it is enabled.])
|
|
fi
|
|
AC_SUBST([enable_default_pie])
|
|
|
|
# Check if -fno-PIE works.
|
|
AC_CACHE_CHECK([for -fno-PIE option],
|
|
[gcc_cv_c_no_fpie],
|
|
[saved_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS="$CXXFLAGS -fno-PIE"
|
|
AC_COMPILE_IFELSE([int main(void) {return 0;}],
|
|
[gcc_cv_c_no_fpie=yes],
|
|
[gcc_cv_c_no_fpie=no])
|
|
CXXFLAGS="$saved_CXXFLAGS"])
|
|
if test "$gcc_cv_c_no_fpie" = "yes"; then
|
|
NO_PIE_CFLAGS="-fno-PIE"
|
|
fi
|
|
AC_SUBST([NO_PIE_CFLAGS])
|
|
|
|
# Check if -no-pie works.
|
|
AC_CACHE_CHECK([for -no-pie option],
|
|
[gcc_cv_no_pie],
|
|
[saved_LDFLAGS="$LDFLAGS"
|
|
LDFLAGS="$LDFLAGS -no-pie"
|
|
AC_LINK_IFELSE([int main(void) {return 0;}],
|
|
[gcc_cv_no_pie=yes],
|
|
[gcc_cv_no_pie=no])
|
|
LDFLAGS="$saved_LDFLAGS"])
|
|
if test "$gcc_cv_no_pie" = "yes"; then
|
|
NO_PIE_FLAG="-no-pie"
|
|
fi
|
|
AC_SUBST([NO_PIE_FLAG])
|
|
|
|
# Check linker supports '-z bndplt'
|
|
ld_bndplt_support=no
|
|
AC_MSG_CHECKING(linker -z bndplt option)
|
|
if test x"$ld_is_gold" = xno; then
|
|
if test $in_tree_ld = yes ; then
|
|
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then
|
|
ld_bndplt_support=yes
|
|
fi
|
|
elif test x$gcc_cv_ld != x; then
|
|
# Check if linker supports -a bndplt option
|
|
if $gcc_cv_ld --help 2>/dev/null | grep -- '-z bndplt' > /dev/null; then
|
|
ld_bndplt_support=yes
|
|
fi
|
|
fi
|
|
fi
|
|
if test x"$ld_bndplt_support" = xyes; then
|
|
AC_DEFINE(HAVE_LD_BNDPLT_SUPPORT, 1,
|
|
[Define if your linker supports -z bndplt])
|
|
fi
|
|
AC_MSG_RESULT($ld_bndplt_support)
|
|
|
|
# Configure the subdirectories
|
|
# AC_CONFIG_SUBDIRS($subdirs)
|
|
|
|
# Create the Makefile
|
|
# and configure language subdirectories
|
|
AC_CONFIG_FILES($all_outputs)
|
|
|
|
AC_CONFIG_COMMANDS([default],
|
|
[
|
|
case ${CONFIG_HEADERS} in
|
|
*auto-host.h:config.in*)
|
|
echo > cstamp-h ;;
|
|
esac
|
|
# Make sure all the subdirs exist.
|
|
for d in $subdirs doc build common c-family
|
|
do
|
|
test -d $d || mkdir $d
|
|
done
|
|
],
|
|
[subdirs='$subdirs'])
|
|
AC_OUTPUT
|
|
|