# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright (C) 1997-2019 Free Software Foundation, Inc.
+# Copyright (C) 1997-2021 Free Software Foundation, Inc.
#This file is part of GCC.
fi
fi
+# Configuration for an alternate set of C++ headers.
+gcc_gxx_libcxx_include_dir=
+# Specify the alternate g++ header file directory
+AC_ARG_WITH(gxx-libcxx-include-dir,
+[AS_HELP_STRING([--with-gxx-libcxx-include-dir=DIR],
+ [specifies directory to find libc++ header files])],
+[case "${withval}" in
+yes) AC_MSG_ERROR(bad value ${withval} given for libc++ include directory) ;;
+no) ;;
+*) gcc_gxx_libcxx_include_dir=$with_gxx_libcxx_include_dir ;;
+esac])
+
+# If both --with-sysroot and --with-gxx-libcxx-include-dir are passed, we
+# check to see if the latter starts with the former and, upon success, compute
+# gcc_gxx_libcxx_include_dir as relative to the sysroot.
+gcc_gxx_libcxx_include_dir_add_sysroot=0
+
+if test x${gcc_gxx_libcxx_include_dir} != x; then
+ AC_DEFINE(ENABLE_STDLIB_OPTION, 1,
+ [Define if the -stdlib= option should be enabled.])
+else
+ AC_DEFINE(ENABLE_STDLIB_OPTION, 0)
+fi
+# ??? This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
+if test x${gcc_gxx_libcxx_include_dir} = x; then
+ if test x${enable_version_specific_runtime_libs} = xyes; then
+ gcc_gxx_libcxx_include_dir='${libsubdir}/libc++_include/c++/v1'
+ else
+ libcxx_incdir='libc++_include/c++/$(version)/v1'
+ if test x$host != x$target; then
+ libcxx_incdir="$target_alias/$libcxx_incdir"
+ fi
+ gcc_gxx_libcxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libcxx_incdir"
+ fi
+elif test "${with_sysroot+set}" = set; then
+ gcc_gxx_libcxx_without_sysroot=`expr "${gcc_gxx_libcxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
+ if test "${gcc_gxx_libcxx_without_sysroot}"; then
+ gcc_gxx_libcxx_include_dir="${gcc_gxx_libcxx_without_sysroot}"
+ gcc_gxx_libcxx_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
gnu_ld_flag=no)
case $target in
- *darwin*) ld64_flag=yes;; # Darwin can only use a ld64-compatible linker.
- *) ld64_flag=no;;
+ *darwin*)
+ ld64_flag=yes # Darwin can only use a ld64-compatible linker.
+ dsymutil_flag=yes # Darwin uses dsymutil to link debug.
+ ;;
+ *)
+ ld64_flag=no
+ dsymutil_flag=no
+ ;;
esac
# With pre-defined ld
demangler_in_ld="$with_demangler_in_ld",
demangler_in_ld=yes)
+# Allow the user to specify a dsymutil executable (used on Darwin only, so far)
+AC_ARG_WITH(dsymutil,
+[AS_HELP_STRING([--with-dsymutil], [arrange to use the specified dsymutil (full pathname)])],
+DEFAULT_DSYMUTIL="$with_dsymutil")
+
+dsymutil_vers=
+if test x"${DEFAULT_DSYMUTIL+set}" = x"set"; then
+ if test ! -x "$DEFAULT_DSYMUTIL"; then
+ AC_MSG_ERROR([cannot execute: $DEFAULT_DSYMUTIL: check --with-dsymutil or env. var. DEFAULT_DSYMUTIL])
+ else
+ if dsymutil_vers=`$DEFAULT_DSYMUTIL -v /dev/null 2>&1`; then
+ dsymutil_flag=yes
+ fi
+ fi
+ AC_DEFINE_UNQUOTED(DEFAULT_DSYMUTIL,"$DEFAULT_DSYMUTIL",
+ [Define to enable the use of a default debug linker.])
+fi
+
+AC_MSG_CHECKING([whether a default dsymutil was specified])
+if test x"${DEFAULT_DSYMUTIL+set}" = x"set"; then
+ AC_MSG_RESULT([yes ($DEFAULT_DSYMUTIL)])
+else
+ AC_MSG_RESULT(no)
+fi
+
# ----------------------
# Find default assembler
# ----------------------
# -------------------------
AC_USE_SYSTEM_EXTENSIONS
+
AC_PROG_CPP
AC_C_INLINE
# Miscenalleous configure options
# -------------------------------
-# With stabs
-AC_ARG_WITH(stabs,
-[AS_HELP_STRING([--with-stabs],
- [arrange to use stabs instead of host debug format])],
-stabs="$with_stabs",
-stabs=no)
-
# Determine whether or not multilibs are enabled.
AC_ARG_ENABLE(multilib,
[AS_HELP_STRING([--enable-multilib],
AC_DEFINE_UNQUOTED(ENABLE_VTABLE_VERIFY, $vtable_verify,
[Define 0/1 if vtable verification feature is enabled.])
+AC_ARG_ENABLE(analyzer,
+[AS_HELP_STRING([--disable-analyzer],
+ [disable -fanalyzer static analyzer])],
+if test x$enable_analyzer = xno; then
+ analyzer=0
+else
+ analyzer=1
+fi,
+analyzer=1)
+AC_DEFINE_UNQUOTED(ENABLE_ANALYZER, $analyzer,
+[Define 0/1 if static analyzer feature is enabled.])
+
AC_ARG_ENABLE(objc-gc,
[AS_HELP_STRING([--enable-objc-gc],
[enable the use of Boehm's garbage collector with
ACX_PKGVERSION([GCC])
ACX_BUGURL([https://gcc.gnu.org/bugs/])
+# Allow overriding the default URL for documentation
+AC_ARG_WITH(documentation-root-url,
+ AS_HELP_STRING([--with-documentation-root-url=URL],
+ [Root for documentation URLs]),
+ [case "$withval" in
+ yes) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ no) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ */) DOCUMENTATION_ROOT_URL="$withval" ;;
+ *) AC_MSG_ERROR([documentation root URL does not end with /]) ;;
+ esac],
+ DOCUMENTATION_ROOT_URL="https://gcc.gnu.org/onlinedocs/"
+)
+AC_DEFINE_UNQUOTED(DOCUMENTATION_ROOT_URL,"$DOCUMENTATION_ROOT_URL",
+ [Define to the root for documentation URLs.])
+
+# Allow overriding the default URL for GCC changes
+AC_ARG_WITH(changes-root-url,
+ AS_HELP_STRING([--with-changes-root-url=URL],
+ [Root for GCC changes URLs]),
+ [case "$withval" in
+ yes) AC_MSG_ERROR([changes root URL not specified]) ;;
+ no) AC_MSG_ERROR([changes root URL not specified]) ;;
+ */) CHANGES_ROOT_URL="$withval" ;;
+ *) AC_MSG_ERROR([changes root URL does not end with /]) ;;
+ esac],
+ CHANGES_ROOT_URL="https://gcc.gnu.org/"
+)
+AC_DEFINE_UNQUOTED(CHANGES_ROOT_URL,"$CHANGES_ROOT_URL",
+ [Define to the root for URLs about GCC changes.])
+
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
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
+ enable_offloading=1
+ case "$tgt" in
+ *-intelmic-* | *-intelmicemul-*)
+ omp_device_property=omp-device-properties-i386
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/i386/t-omp-device"
+ ;;
+ amdgcn*)
+ omp_device_property=omp-device-properties-gcn
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/gcn/t-omp-device"
+ ;;
+ nvptx*)
+ omp_device_property=omp-device-properties-nvptx
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/nvptx/t-omp-device"
+ ;;
+ *)
+ AC_MSG_ERROR([unknown offload target specified])
+ ;;
+ esac
+ omp_device_properties="${omp_device_properties} ${tgt}=${omp_device_property}"
+ omp_device_property_deps="${omp_device_property_deps} ${omp_device_property}"
if test x"$offload_targets" = x; then
offload_targets=$tgt
offload_targets="$offload_targets,$tgt"
fi
done
+AC_SUBST(omp_device_properties)
+AC_SUBST(omp_device_property_deps)
+
AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
[Define to offload targets, separated by commas.])
if test x"$enable_offloading" != x; then
[Define this to enable support for offloading.])
fi
-if test x"$enable_hsa" = x1 ; then
- AC_DEFINE(ENABLE_HSA, 1,
- [Define this to enable support for generating HSAIL.])
+if test "x$enable_offload_defaulted" = xyes; then
+ AC_DEFINE(OFFLOAD_DEFAULTED, 1,
+ [Define to 1 to if -foffload is defaulted])
fi
AC_ARG_WITH(multilib-list,
:,
with_multilib_list=default)
+AC_ARG_WITH(multilib-generator,
+[AS_HELP_STRING([--with-multilib-generator], [Multi-libs configuration string (RISC-V only)])],
+:,
+with_multilib_generator=default)
+
# -------------------------
# Checks for other programs
# -------------------------
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 \
+ sys/resource.h sys/param.h sys/times.h sys/stat.h sys/locking.h \
direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
# Check for thread headers.
ZW_CREATE_DEPDIR
AC_CONFIG_COMMANDS([gccdepdir],[
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs build/$DEPDIR
- for lang in $subdirs c-family common
+ for lang in $subdirs c-family common analyzer rtl-ssa
do
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/mkinstalldirs $lang/$DEPDIR
done], [subdirs="$subdirs" ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR])
LIBS="$save_LIBS"
AC_SUBST(EXTRA_GCC_LIBS)
+# Solaris needs libsocket and libnsl for socket functions before 11.4.
+# C++ needs those for libcody.
+save_LIBS="$LIBS"
+LIBS=
+AX_LIB_SOCKET_NSL
+NETLIBS="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(NETLIBS)
+
# Some systems put ldexp and frexp in libm instead of libc; assume
# they're both in the same place. jcf-dump needs them.
save_LIBS="$LIBS"
AC_SUBST(ZSTD_LIB)
ZSTD_CPPFLAGS=
ZSTD_LDFLAGS=
+AC_SUBST(ZSTD_CPPFLAGS)
+AC_SUBST(ZSTD_LDFLAGS)
AC_ARG_WITH(zstd,
[AS_HELP_STRING([--with-zstd=PATH],
[specify prefix directory for installed zstd library.
case "x$with_zstd" in
x) ;;
xno)
- ZSTD_INCLUDE=no
- ZSTD_LIB=no
+ ZSTD_INCLUDE=
+ ZSTD_LIB=
;;
*) ZSTD_INCLUDE=$with_zstd/include
ZSTD_LIB=$with_zstd/lib
;;
esac
+
+if test "x$with_zstd" != xno; then
if test "x$with_zstd_include" != x; then
ZSTD_INCLUDE=$with_zstd_include
fi
AC_MSG_CHECKING(for zstd.h)
AC_CACHE_VAL(gcc_cv_header_zstd_h,
+# We require version 1.3.0 or later. This is the first version that has
+# ZSTD_getFrameContentSize.
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-[[#include <zstd.h>]])],
+[[#include <zstd.h>
+#if ZSTD_VERSION_NUMBER < 10300
+#error "need zstd 1.3.0 or better"
+#endif]])],
[gcc_cv_header_zstd_h=yes],
[gcc_cv_header_zstd_h=no])])
AC_MSG_RESULT($gcc_cv_header_zstd_h)
if test $gcc_cv_header_zstd_h = yes; then
AC_DEFINE(HAVE_ZSTD_H, 1,
[Define if you have a working <zstd.h> header file.])
+elif test "x$with_zstd" != x; then
+ as_fn_error $? "Unable to find zstd.h. See config.log for details." "$LINENO" 5
fi
# LTO can use zstd compression algorithm
ZSTD_LIB="$LIBS"
LIBS="$save_LIBS"
AC_SUBST(ZSTD_LIB)
+fi
dnl Disabled until we have a complete test for buggy enum bitfields.
dnl gcc_AC_C_ENUM_BF_UNSIGNED
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)
+ gettimeofday mbstowcs wcswidth mmap posix_fallocate setlocale \
+ gcc_UNLOCKED_FUNCS madvise mallinfo mallinfo2 fstatat)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
AC_CHECK_TYPE(ssize_t, int)
AC_CHECK_TYPE(caddr_t, char *)
+AC_CHECK_TYPE(sighander_t,
+ AC_DEFINE(HAVE_SIGHANDLER_T, 1,
+ [Define if <sys/signal.h> defines sighandler_t]),
+ ,signal.h)
GCC_AC_FUNC_MMAP_BLACKLIST
#endif
])
+gcc_AC_CHECK_DECLS(mallinfo mallinfo2, , ,[
+#include "ansidecl.h"
+#include "system.h"
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+])
+
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "ansidecl.h"
#include "system.h"
[Define if F_SETLKW supported by fcntl.])
fi
+# Check if O_CLOEXEC is defined by fcntl
+AC_CACHE_CHECK(for O_CLOEXEC, ac_cv_o_cloexec, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <fcntl.h>]], [[
+return open ("/dev/null", O_RDONLY | O_CLOEXEC);]])],
+[ac_cv_o_cloexec=yes],[ac_cv_o_cloexec=no])])
+if test $ac_cv_o_cloexec = yes; then
+ AC_DEFINE(HOST_HAS_O_CLOEXEC, 1,
+ [Define if O_CLOEXEC supported by fcntl.])
+fi
+
+# C++ Modules would like some networking features to provide the mapping
+# server. You can still use modules without them though.
+# The following network-related checks could probably do with some
+# Windows and other non-linux defenses and checking.
+
+# Local socket connectivity wants AF_UNIX networking
+# Check for AF_UNIX networking
+AC_CACHE_CHECK(for AF_UNIX, ac_cv_af_unix, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netinet/in.h>]],[[
+sockaddr_un un;
+un.sun_family = AF_UNSPEC;
+int fd = socket (AF_UNIX, SOCK_STREAM, 0);
+connect (fd, (sockaddr *)&un, sizeof (un));]])],
+[ac_cv_af_unix=yes],
+[ac_cv_af_unix=no])])
+if test $ac_cv_af_unix = yes; then
+ AC_DEFINE(HAVE_AF_UNIX, 1,
+ [Define if AF_UNIX supported.])
+fi
+
+# Remote socket connectivity wants AF_INET6 networking
+# Check for AF_INET6 networking
+AC_CACHE_CHECK(for AF_INET6, ac_cv_af_inet6, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>]],[[
+sockaddr_in6 in6;
+in6.sin6_family = AF_UNSPEC;
+struct addrinfo *addrs = 0;
+struct addrinfo hints;
+hints.ai_flags = 0;
+hints.ai_family = AF_INET6;
+hints.ai_socktype = SOCK_STREAM;
+hints.ai_protocol = 0;
+hints.ai_canonname = 0;
+hints.ai_addr = 0;
+hints.ai_next = 0;
+int e = getaddrinfo ("localhost", 0, &hints, &addrs);
+const char *str = gai_strerror (e);
+freeaddrinfo (addrs);
+int fd = socket (AF_INET6, SOCK_STREAM, 0);
+connect (fd, (sockaddr *)&in6, sizeof (in6));]])],
+[ac_cv_af_inet6=yes],
+[ac_cv_af_inet6=no])])
+if test $ac_cv_af_inet6 = yes; then
+ AC_DEFINE(HAVE_AF_INET6, 1,
+ [Define if AF_INET6 supported.])
+fi
+
+# Check if _LK_LOCK is supported by _locking
+AC_CACHE_CHECK(for _LK_LOCK, ac_cv_lk_lock, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <io.h>
+#include <sys/locking.h>]], [[
+ int fd;
+ return _locking (fd, _LK_LOCK, 0);]])],
+[ac_cv_lk_lock=yes],[ac_cv_lk_lock=no])])
+if test $ac_cv_lk_lock = yes; then
+ AC_DEFINE(HOST_HAS_LK_LOCK, 1,
+ [Define if _LK_LOC supported by _locking.])
+fi
+
# Restore CFLAGS, CXXFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
CFLAGS="$saved_CFLAGS"
CXXFLAGS="$saved_CXXFLAGS"
if test x$host = x$build
then
build_auto=auto-host.h
+ HAVE_AUTO_BUILD='# '
else
# We create a subdir, then run autoconf in the subdir.
# To prevent recursion we set host and build for the new
GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
${realsrcdir}/configure \
--enable-languages=${enable_languages-all} \
- --target=$target_alias --host=$build_alias --build=$build_alias
+ ${enable_obsolete+--enable-obsolete="$enable_obsolete"} \
+ ${enable_option_checking+--enable-option-checking="$enable_option_checking"} \
+ --target=$target_alias --host=$build_alias \
+ --build=$build_alias || exit # retaining $tempdir
# We just finished tests for the build machine, so rename
# the file auto-build.h in the gcc directory.
cd ..
rm -rf $tempdir
build_auto=auto-build.h
+ HAVE_AUTO_BUILD=
fi
AC_SUBST(build_subdir)
+AC_SUBST(HAVE_AUTO_BUILD)
tm_file="${tm_file} defaults.h"
tm_p_file="${tm_p_file} tm-preds.h"
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
fi
done
-tmake_file="${tmake_file_}"
+tmake_file="${tmake_file_}${omp_device_property_tmake_file}"
out_object_file=`basename $out_file .c`.o
common_out_object_file=`basename $common_out_file .c`.o
BUILD_LDFLAGS='$(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) $(CXXFLAGS_FOR_BUILD)'
+ BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CFLAGS_FOR_BUILD)'
+ BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS_FOR_BUILD)'
BUILD_LDFLAGS='$(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.
# 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
*) 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($gcc_cv_as)
- in_tree_gas=no
-fi
-
default_ld=
AC_ARG_ENABLE(ld,
[[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]],
AC_MSG_RESULT($gcc_cv_otool)
fi
+# Figure out the dsymutil we will use.
+AS_VAR_SET_IF(gcc_cv_dsymutil,, [
+if test -x "$DEFAULT_DSYMUTIL"; then
+ gcc_cv_dsymutil="$DEFAULT_DSYMUTIL"
+elif test -x dsymutil$build_exeext; then
+ gcc_cv_dsymutil=./dsymutil$build_exeext
+elif ( set dummy $DSYMUTIL_FOR_TARGET; test -x $[2] ); then
+ gcc_cv_dsymutil=$DSYMUTIL_FOR_TARGET
+elif ( set dummy $DSYMUTIL; test -x $[2] ); then
+ gcc_cv_dsymutil=$DSYMUTIL
+else
+ AC_PATH_PROG(gcc_cv_dsymutil, $DSYMUTIL_FOR_TARGET)
+fi])
+
+ORIGINAL_DSYMUTIL_FOR_TARGET=$gcc_cv_dsymutil
+AC_SUBST(ORIGINAL_DSYMUTIL_FOR_TARGET)
+case "$ORIGINAL_DSYMUTIL_FOR_TARGET" in
+ ./dsymutil | ./dsymutil$build_exeext) ;;
+ *) AC_CONFIG_FILES(dsymutil:exec-tool.in, [chmod +x dsymutil]) ;;
+esac
+
# Figure out what assembler alignment features are present.
-gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
- [2,6,0],,
+gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,,
[.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],,
+gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,,
[.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],,
+gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,,
[.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],,
+gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,,
[conftest_label1: .word 0
.subsection -1
conftest_label2: .word 0
[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],,
+gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,,
[ .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],,
+gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,,
[ .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],,
+gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,,
[ .SPACE $TEXT$
.NSUBSPA $CODE$,COMDAT],,
[AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
foobar:'
;;
esac
-gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
- [elf,2,13,0],, [$conftest_s])
+gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,, [$conftest_s])
case "${target}" in
*-*-darwin*)
# Darwin as has some visibility support, though with a different syntax.
esac],
[enable_gnu_indirect_function="$default_gnu_indirect_function"])
+case "${target}" in
+ riscv*-*-linux*)
+ AC_MSG_CHECKING(linker ifunc IRELATIVE support)
+ cat > conftest.s <<EOF
+ .text
+ .type foo_resolver, @function
+foo_resolver:
+ ret
+ .size foo_resolver, .-foo_resolver
+
+ .globl foo
+ .type foo, %gnu_indirect_function
+ .set foo, foo_resolver
+
+ .globl bar
+ .type bar, @function
+bar:
+ call foo
+ ret
+ .size bar, .-bar
+EOF
+ if test x$gcc_cv_as != x \
+ && test x$gcc_cv_ld != x \
+ && test x$gcc_cv_readelf != x \
+ && $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
+ && $gcc_cv_readelf --relocs --wide conftest \
+ | grep R_RISCV_IRELATIVE > /dev/null 2>&1; then
+ enable_gnu_indirect_function=yes
+ fi
+ rm -f conftest conftest.o conftest.s
+ AC_MSG_RESULT($enable_gnu_indirect_function)
+ ;;
+esac
+
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.])
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_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)\(-*\)\([01][0-9]\)\2\([0-3][0-9]\).*$,\1\3\4,p'`
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
if test 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 "$ld_date"; then
# If there was date string, but was earlier than 2002-04-04, fail
gcc_AC_INITFINI_ARRAY
# Check if we have .[us]leb128, and support symbol arithmetic with it.
-gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
- [elf,2,11,0],,
+# Older versions of GAS and some non-GNU assemblers, have a bugs handling
+# these directives, even when they appear to accept them.
+gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,,
[ .data
.uleb128 L2 - L1
L1:
.uleb128 1280
.sleb128 -1010
-L2:],
-[[# GAS versions before 2.11 do not support uleb128,
- # despite appearing to.
- # ??? There exists an elf-specific test that will crash
- # the assembler. Perhaps it's better to figure out whether
- # arbitrary sections are supported and try the test.
- as_ver=`$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 $as_minor -lt 11
- then :
- else gcc_cv_as_leb128=yes
- fi
- fi]],
- [AC_DEFINE(HAVE_AS_LEB128, 1,
- [Define if your assembler supports .sleb128 and .uleb128.])],
- [AC_DEFINE(HAVE_AS_LEB128, 0,
- [Define if your assembler supports .sleb128 and .uleb128.])])
+L2:
+ .uleb128 0x8000000000000000
+],
+[[
+if test "x$gcc_cv_objdump" != x; then
+ if $gcc_cv_objdump -s conftest.o 2>/dev/null \
+ | grep '04800a8e 78808080 80808080 808001' >/dev/null; then
+ gcc_cv_as_leb128=yes
+ fi
+elif test "x$gcc_cv_otool" != x; then
+ if $gcc_cv_otool -d conftest.o 2>/dev/null \
+ | grep '04 80 0a 8e 78 80 80 80 80 80 80 80 80 80 01' >/dev/null; then
+ gcc_cv_as_leb128=yes
+ fi
+else
+ # play safe, assume the assembler is broken.
+ :
+fi
+]],
+ [AC_DEFINE(HAVE_AS_LEB128, 1,
+ [Define if your assembler supports .sleb128 and .uleb128.])],
+ [AC_DEFINE(HAVE_AS_LEB128, 0,
+ [Define if your assembler supports .sleb128 and .uleb128.])])
# Determine if an .eh_frame section is read-only.
gcc_fn_eh_frame_ro () {
}
# Check if we have assembler support for unwind directives.
-gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
- ,,
+gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,,
[ .text
.cfi_startproc
.cfi_offset 0, 0
;;
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,
- ,,
+gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,,
[ .text
.cfi_startproc
.cfi_adjust_cfa_offset 64
GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE)
gcc_GAS_CHECK_FEATURE([cfi personality directive],
- gcc_cv_as_cfi_personality_directive, ,,
+ gcc_cv_as_cfi_personality_directive,,
[ .text
.cfi_startproc
.cfi_personality 0, symbol
[Define 0/1 if your assembler supports .cfi_personality.])
gcc_GAS_CHECK_FEATURE([cfi sections directive],
- gcc_cv_as_cfi_sections_directive, ,,
+ gcc_cv_as_cfi_sections_directive,,
[ .text
.cfi_sections .debug_frame, .eh_frame
.cfi_startproc
# 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],,
+gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,,
[ .text
.LFB1:
.4byte 0
# Test if the assembler supports the section flag 'e' or #exclude for
# specifying an excluded section.
gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_e,
- [2,22,51], [--fatal-warnings],
+ [--fatal-warnings],
[.section foo1,"e"
.byte 0,0,0,0])
if test $gcc_cv_as_section_exclude_e = no; then
esac
;;
esac
- gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,,
+ gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,
[$conftest_s
.byte 0,0,0,0])
fi
[`if test $gcc_cv_as_section_exclude_e = yes || test $gcc_cv_as_section_exclude_hash = yes; then echo 1; else echo 0; fi`],
[Define if your assembler supports specifying the exclude section flag.])
+# Test if the assembler supports the section flag 'R' for specifying
+# section with SHF_GNU_RETAIN.
+case "${target}" in
+ # Solaris may use GNU assembler with Solairs ld. Even if GNU
+ # assembler supports the section flag 'R', it doesn't mean that
+ # Solairs ld supports it.
+ *-*-solaris2*)
+ gcc_cv_as_shf_gnu_retain=no
+ ;;
+ *)
+ gcc_GAS_CHECK_FEATURE([section 'R' flag], gcc_cv_as_shf_gnu_retain,
+ [--fatal-warnings],
+ [.section .foo,"awR",%progbits
+.byte 0])
+ ;;
+esac
+AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_GNU_RETAIN,
+ [`if test $gcc_cv_as_shf_gnu_retain = yes; then echo 1; else echo 0; fi`],
+ [Define 0/1 if your assembler supports marking sections with SHF_GNU_RETAIN flag.])
+
+# Test if the assembler supports the section flag 'o' for specifying
+# section with link-order.
+case "${target}" in
+ # Solaris may use GNU assembler with Solairs ld. Even if GNU
+ # assembler supports the section flag 'o', it doesn't mean that
+ # Solairs ld supports it.
+ *-*-solaris2*)
+ gcc_cv_as_section_link_order=no
+ ;;
+ *)
+ gcc_GAS_CHECK_FEATURE([section 'o' flag], gcc_cv_as_section_link_order,
+ [--fatal-warnings],
+ [.section .foo,"a"
+.byte 0
+.section __patchable_function_entries,"awo",%progbits,.foo
+.byte 0])
+ ;;
+esac
+AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_LINK_ORDER,
+ [`if test $gcc_cv_as_section_link_order = yes; then echo 1; else echo 0; fi`],
+ [Define 0/1 if your assembler supports 'o' flag in .section directive.])
+
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
- [elf,2,12,0], [--fatal-warnings],
+ [--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],
+ [--fatal-warnings],
[.section .rodata.str, "aMS", %progbits, 1])
fi
AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
[`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.])
-gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,,
+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],
+ [--fatal-warnings],
[.section .text,"axG",@progbits,.foo,comdat])
if test $gcc_cv_as_comdat_group = yes; then
gcc_cv_as_comdat_group_percent=no
else
gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)],
gcc_cv_as_comdat_group_percent,
- [elf,2,16,0], [--fatal-warnings],
+ [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
if test $gcc_cv_as_comdat_group_percent = yes; then
gcc_cv_as_comdat_group_group=no
esac
gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)],
gcc_cv_as_comdat_group_group,
- ,, [$conftest_s])
+ , [$conftest_s])
;;
esac
if test -z "${gcc_cv_as_comdat_group_group+set}"; then
esac
gcc_GAS_CHECK_FEATURE([line table is_stmt support],
- gcc_cv_as_is_stmt,
- [2,16,92],,
+ gcc_cv_as_is_stmt,,
[ .text
.file 1 "conf.c"
.loc 1 1 0 is_stmt 1],,
[Define if your assembler supports the .loc is_stmt sub-directive.])])
gcc_GAS_CHECK_FEATURE([line table discriminator support],
- gcc_cv_as_discriminator,
- [2,19,51],,
+ gcc_cv_as_discriminator,,
[ .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.])])
+# Catch the newlib flag of the same name so we can gate GCC features on it.
+AC_ARG_ENABLE(newlib-nano-formatted-io,
+[AS_HELP_STRING([--enable-newlib-nano-formatted-io], [Use nano version
+ formatted IO])],
+[case "${enableval}" in
+ yes|no)
+ ;;
+ *)
+ AC_MSG_ERROR([unknown newlib-nano-formatted-io setting $enableval])
+ ;;
+esac], [])
+
# Thread-local storage - the check is heavily parameterized.
conftest_s=
-tls_first_major=
-tls_first_minor=
tls_as_opt=
case "$target" in
changequote(,)dnl
ldah $2,foo($29) !tprelhi
lda $3,foo($2) !tprello
lda $4,foo($29) !tprel'
- tls_first_major=2
- tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
arc*-*-*)
conftest_s='
add_s r0,r0, @foo@tpoff'
- tls_first_major=2
- tls_first_minor=23
;;
cris-*-*|crisv32-*-*)
conftest_s='
.text
move.d x:IE,$r10
nop'
- tls_first_major=2
- tls_first_minor=20
tls_as_opt=--fatal-warnings
;;
frv*-*-*)
x: .long 25
.text
call #gettlsoff(x)'
- tls_first_major=2
- tls_first_minor=14
;;
hppa*-*-linux*)
conftest_s='
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*-*-*)
.word foo(tlsgd)
.word foo(tlsldm)
.word foo(tlsldo)'
- tls_first_major=2
- tls_first_minor=17
;;
i[34567]86-*-* | x86_64-*-*)
case "$target" in
if test x$on_solaris = xyes && test x$gas_flag = xno; then
conftest_s='
.section .tdata,"awt",@progbits'
- tls_first_major=0
- tls_first_minor=0
tls_section_flag=t
changequote([,])dnl
AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
else
conftest_s='
.section ".tdata","awT",@progbits'
- tls_first_major=2
- tls_first_minor=14
tls_section_flag=T
tls_as_opt="--fatal-warnings"
fi
case "$target" in
i[34567]86-*-*)
+ if test x$on_solaris = xyes; then
+ case $gas_flag in
+ yes) tls_as_opt="$tls_as_opt --32" ;;
+ esac
+ fi
conftest_s="$conftest_s
foo: .long 25
.text
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*-*-*)
.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*-*-*)
lw $4, %gottprel(x)($28)
lui $4, %tprel_hi(x)
addiu $4, $4, %tprel_lo(x)'
- tls_first_major=2
- tls_first_minor=16
tls_as_opt='-32 --fatal-warnings'
;;
m68k-*-*)
move.l x@TLSLDO(%a5),%a0
move.l x@TLSIE(%a5),%a0
move.l x@TLSLE(%a5),%a0'
- tls_first_major=2
- tls_first_minor=19
tls_as_opt='--fatal-warnings'
;;
nios2-*-*)
conftest_s='
.section ".tdata","awT",@progbits'
- tls_first_major=2
- tls_first_minor=23
tls_as_opt="--fatal-warnings"
;;
aarch64*-*-*)
add x0, x0, #:tlsgd_lo12:x
bl __tls_get_addr
nop'
- tls_first_major=2
- tls_first_minor=20
tls_as_opt='--fatal-warnings'
;;
or1k*-*-*)
l.movhi r3, tpoffha(foo)
l.add r3, r3, r10
l.lwz r4, tpofflo(foo)(r3)'
- tls_first_major=2
- tls_first_minor=30
tls_as_opt=--fatal-warnings
;;
powerpc-ibm-aix*)
.csect a[TL],4
a:
.space 4'
- tls_first_major=0
- tls_first_minor=0
;;
powerpc64*-*-*)
conftest_s='
add 9,9,3
bl .__tls_get_addr
nop'
- tls_first_major=2
- tls_first_minor=14
tls_as_opt="-a64 --fatal-warnings"
;;
powerpc*-*-*)
addi 9,2,x1@tprel
addis 9,2,x2@tprel@ha
addi 9,9,x2@tprel@l'
- tls_first_major=2
- tls_first_minor=14
tls_as_opt="-a32 --fatal-warnings"
;;
riscv*-*-*)
.text
la.tls.gd a0,x
call __tls_get_addr'
- tls_first_major=2
- tls_first_minor=21
tls_as_opt='--fatal-warnings'
;;
s390-*-*)
l %r1,0(%r1):tls_load:foo
bas %r14,0(%r1,%r13):tls_gdcall:foo
bas %r14,0(%r1,%r13):tls_ldcall:foo'
- tls_first_major=2
- tls_first_minor=14
tls_as_opt="-m31 --fatal-warnings"
;;
s390x-*-*)
larl %r1,foo@INDNTPOFF
brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
- tls_first_major=2
- tls_first_minor=14
tls_as_opt="-m64 -Aesame --fatal-warnings"
;;
sh-*-* | sh[123456789lbe]*-*-*)
.long foo@DTPOFF
.long foo@GOTTPOFF
.long foo@TPOFF'
- tls_first_major=2
- tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
sparc*-*-*)
if test x$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
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*-*-*)
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*-*-*)
movi a8, foo@TLSFUNC
movi a10, foo@TLSARG
callx8.tls a8, foo@TLSCALL'
- tls_first_major=2
- tls_first_minor=19
;;
changequote([,])dnl
esac
: # 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
+elif test -z "$conftest_s"; then
: # If we don't have a check, assume no support.
else
gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
- [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
+ [$tls_as_opt], [$conftest_s],,
[set_have_as_tls=yes])
fi
if test $set_have_as_tls = yes ; then
case "$target_os" in
darwin*)
gcc_GAS_CHECK_FEATURE([-mmacosx-version-min option],
- gcc_cv_as_mmacosx_version_min,,
+ gcc_cv_as_mmacosx_version_min,
[-mmacosx-version-min=10.1], [.text],,
[AC_DEFINE(HAVE_AS_MMACOSX_VERSION_MIN_OPTION, 1,
[Define if your Mac OS X assembler supports the -mmacos-version-min option.])])
case "$target" in
aarch64*-*-*)
- gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,,
+ gcc_GAS_CHECK_FEATURE([-mabi option], gcc_cv_as_aarch64_mabi,
[-mabi=lp64], [.text],,,)
if test x$gcc_cv_as_aarch64_mabi = xyes; then
AC_DEFINE(HAVE_AS_MABI_OPTION, 1,
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,,,
+ gcc_GAS_CHECK_FEATURE([-fpic relocs], gcc_cv_as_aarch64_picreloc,,
[
.text
ldr x0, [[x2, #:gotpage_lo15:globalsym]]
# 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],,
+ gcc_cv_as_alpha_explicit_relocs,,
[ .set nomacro
.text
extbl $3, $2, $3 !lituse_bytoff!1
[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],,
+ gcc_cv_as_alpha_jsrdirect_relocs,,
[ .set nomacro
.text
ldq $27, a($29) !literal!1
;;
avr-*-*)
- gcc_GAS_CHECK_FEATURE([--mlink-relax option], gcc_cv_as_avr_mlink_relax,,
+ 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,,
+ 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.])])
gcc_GAS_CHECK_FEATURE([__gcc_isr pseudo instruction],
- gcc_cv_as_avr_mgccisr,,
+ gcc_cv_as_avr_mgccisr,
[-mgcc-isr], [.text
__gcc_isr 1
__gcc_isr 2
cris-*-*)
gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
- gcc_cv_as_cris_no_mul_bug,[2,15,91],
+ gcc_cv_as_cris_no_mul_bug,
[-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([-relax option], gcc_cv_as_sparc_relax,,
+ 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,,
+ gcc_cv_as_sparc_gotdata_op,
[-K PIC],
[.text
.align 4
[Define if your assembler and linker support GOTDATA_OP relocs.])])
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
- gcc_cv_as_sparc_ua_pcrel,,
+ gcc_cv_as_sparc_ua_pcrel,
[-K PIC],
[.text
foo:
[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,,
+ gcc_cv_as_sparc_ua_pcrel_hidden,
[-K PIC],
[.data
.align 4
]) # unaligned pcrel relocs
gcc_GAS_CHECK_FEATURE([offsetable %lo()],
- gcc_cv_as_sparc_offsetable_lo10,,
+ gcc_cv_as_sparc_offsetable_lo10,
[-xarch=v9],
[.text
or %g1, %lo(ab) + 12, %g1
[Define if your assembler supports offsetable %lo().])])
gcc_GAS_CHECK_FEATURE([FMAF, HPC, and VIS 3.0 instructions],
- gcc_cv_as_sparc_fmaf,,
+ gcc_cv_as_sparc_fmaf,
[-xarch=v9d],
[.text
.register %g2, #scratch
[Define if your assembler supports FMAF, HPC, and VIS 3.0 instructions.])])
gcc_GAS_CHECK_FEATURE([SPARC4 instructions],
- gcc_cv_as_sparc_sparc4,,
+ gcc_cv_as_sparc_sparc4,
[-xarch=sparc4],
[.text
.register %g2, #scratch
[Define if your assembler supports SPARC4 instructions.])])
gcc_GAS_CHECK_FEATURE([SPARC5 and VIS 4.0 instructions],
- gcc_cv_as_sparc_sparc5,,
+ gcc_cv_as_sparc_sparc5,
[-xarch=sparc5],
[.text
.register %g2, #scratch
[Define if your assembler supports SPARC5 and VIS 4.0 instructions.])])
gcc_GAS_CHECK_FEATURE([SPARC6 instructions],
- gcc_cv_as_sparc_sparc6,,
+ gcc_cv_as_sparc_sparc6,
[-xarch=sparc6],
[.text
.register %g2, #scratch
[Define if your assembler supports SPARC6 instructions.])])
gcc_GAS_CHECK_FEATURE([LEON instructions],
- gcc_cv_as_sparc_leon,,
+ gcc_cv_as_sparc_leon,
[-Aleon],
[.text
.register %g2, #scratch
# 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])
+ gcc_GAS_CHECK_FEATURE([.comm with alignment], gcc_cv_as_comm_has_align,,
+ [.comm foo,1,32])
AC_DEFINE_UNQUOTED(HAVE_GAS_ALIGNED_COMM,
[`if test $gcc_cv_as_comm_has_align = yes; then echo 1; else echo 0; fi`],
[Define if your assembler supports specifying the alignment
of objects allocated using the GAS .comm command.])
# Used for DWARF 2 in PE
gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
- gcc_cv_as_ix86_pe_secrel32,
- [2,15,91],,
+ gcc_cv_as_ix86_pe_secrel32,,
[.text
foo: nop
.data
# but normally only after installation, so we warn but don't fail the
# configure if LTO is enabled but the assembler does not support it.
gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
- [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
+ -fatal-warnings,[.section lto_test,"dr0"])
if test x$gcc_cv_as_section_has_align != xyes; then
case ",$enable_languages," in
*,lto,*)
fi
;;
esac
+ case $target_os in
+ darwin2[[0-9]]* | darwin19*)
+ gcc_GAS_CHECK_FEATURE([llvm assembler x86-pad-for-align option],
+ gcc_cv_as_mllvm_x86_pad_for_align,
+ [-mllvm -x86-pad-for-align=false], [.text],,
+ [AC_DEFINE(HAVE_AS_MLLVM_X86_PAD_FOR_ALIGN, 1,
+ [Define if your Mac OS X assembler supports -mllvm -x86-pad-for-align=false.])])
+ ;;
+ esac
- gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,,
+ gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,
[-xbrace_comment=no], [.text],,
[AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1,
[Define if your assembler supports -xbrace_comment option.])])
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
- gcc_cv_as_ix86_filds,,,
+ 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,,,
+ 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,,,
+ 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,,,
+ 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,,,
+ 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,,,
+ 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,,,
+ gcc_cv_as_ix86_interunit_movq,,
[.code64
movq %mm0, %rax
movq %rax, %xmm0])
[Define if your assembler supports interunit movq mnemonic.])
gcc_GAS_CHECK_FEATURE([hle prefixes],
- gcc_cv_as_ix86_hle,,,
+ 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,,,
+ 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,,,
+ gcc_cv_as_ix86_diff_sect_delta,,
[.section .rodata
.L1:
.long .L2-.L1
[Define if your assembler supports the subtraction of symbols in different sections.])])
gcc_GAS_CHECK_FEATURE([rep and lock prefix],
- gcc_cv_as_ix86_rep_lock_prefix,,,
+ gcc_cv_as_ix86_rep_lock_prefix,,
[rep movsl
rep ret
rep nop
[Define if the assembler supports 'rep <insn>, lock <insn>'.])])
gcc_GAS_CHECK_FEATURE([ud2 mnemonic],
- gcc_cv_as_ix86_ud2,,,
+ gcc_cv_as_ix86_ud2,,
[ud2],,
[AC_DEFINE(HAVE_AS_IX86_UD2, 1,
[Define if your assembler supports the 'ud2' mnemonic.])])
fi
gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
- gcc_cv_as_ix86_tlsgdplt,,
+ gcc_cv_as_ix86_tlsgdplt,
[$as_ix86_gas_32_opt],
[call tls_gd@tlsgdplt],
[if test x$gcc_cv_ld != x \
call tls_ld@tlsldmplt'
gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc],
- gcc_cv_as_ix86_tlsldmplt,,
+ gcc_cv_as_ix86_tlsldmplt,
[$as_ix86_gas_32_opt],
[$conftest_s],
[if test x$gcc_cv_ld != x \
.type value, @object
value:'
gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc],
- gcc_cv_as_ix86_tlsldm,,
+ gcc_cv_as_ix86_tlsldm,
[$as_ix86_gas_32_opt],
[$conftest_s],
[if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
cmpl $0, bar@GOT
jmp *_start@GOT'
gcc_GAS_CHECK_FEATURE([R_386_GOT32X reloc],
- gcc_cv_as_ix86_got32x,,
+ gcc_cv_as_ix86_got32x,
[$as_ix86_gas_32_opt],
[$conftest_s],
[if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
[Define 0/1 if your assembler and linker support @GOT.])
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
- gcc_cv_as_ix86_gotoff_in_data, [2,11,0],
+ gcc_cv_as_ix86_gotoff_in_data,
[$as_ix86_gas_32_opt],
[ .text
.L0:
gd:
.byte 0'
gcc_GAS_CHECK_FEATURE([calling ___tls_get_addr via GOT],
- gcc_cv_as_ix86_tls_get_addr_via_got,,
+ gcc_cv_as_ix86_tls_get_addr_via_got,
[$as_ix86_gas_32_opt],
[$conftest_s],
[if test x$gcc_cv_ld != x \
ia64*-*-*)
gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
- gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
+ gcc_cv_as_ia64_ltoffx_ldxmov_relocs,,
[ .text
addl r15 = @ltoffx(x#), gp
;;
case $target in
*-*-darwin*)
gcc_GAS_CHECK_FEATURE([.machine directive support],
- gcc_cv_as_machine_directive,,,
+ gcc_cv_as_machine_directive,,
[ .machine ppc7400])
if test x$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
+ echo you can get it from: https://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
test x$build = x$target && exit 1
fi
;;
esac
gcc_GAS_CHECK_FEATURE([mfcr field support],
- gcc_cv_as_powerpc_mfcrf, [2,14,0],,
+ gcc_cv_as_powerpc_mfcrf,,
[$conftest_s],,
[AC_DEFINE(HAVE_AS_MFCRF, 1,
[Define if your assembler supports mfcr field.])])
esac
gcc_GAS_CHECK_FEATURE([rel16 relocs],
- gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
+ gcc_cv_as_powerpc_rel16, -a32,
[$conftest_s],,
[AC_DEFINE(HAVE_AS_REL16, 1,
[Define if your assembler supports R_PPC_REL16 relocs.])])
esac
gcc_GAS_CHECK_FEATURE([vector-scalar support],
- gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
+ gcc_cv_as_powerpc_vsx, -a32,
[$conftest_s],,
[AC_DEFINE(HAVE_AS_VSX, 1,
[Define if your assembler supports VSX instructions.])])
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
- gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
+ gcc_cv_as_powerpc_gnu_attribute,,
[.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,
+ gcc_cv_as_powerpc_entry_markers,-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.])])
gcc_GAS_CHECK_FEATURE([plt sequence marker support],
- gcc_cv_as_powerpc_pltseq_markers, [2,31,0],-a32 --fatal-warnings,
+ gcc_cv_as_powerpc_pltseq_markers,-a32 --fatal-warnings,
[ .reloc .,R_PPC_PLTSEQ; nop],,
[AC_DEFINE(HAVE_AS_PLTSEQ, 1,
[Define if your assembler supports R_PPC*_PLTSEQ relocations.])])
case $target in
*-*-aix*)
gcc_GAS_CHECK_FEATURE([AIX .ref support],
- gcc_cv_as_aix_ref, [2,21,0],,
+ gcc_cv_as_aix_ref,,
[ .csect stuff[[rw]]
stuff:
.long 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],,
+ gcc_cv_as_aix_dwloc,,
[ .dwsect 0xA0000
Lframe..0:
.vbyte 4,Lframe..0
mips*-*-*)
gcc_GAS_CHECK_FEATURE([explicit relocation support],
- gcc_cv_as_mips_explicit_relocs, [2,14,0],,
+ gcc_cv_as_mips_explicit_relocs,,
[ lw $4,%gp_rel(foo)($4)],,
[if test x$target_cpu_default = x
then 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],,
+ gcc_cv_as_mips_no_shared,[-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],,
+ gcc_cv_as_mips_gnu_attribute,,
[.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],
+ gcc_cv_as_mips_dot_module,[-32],
[.module mips2
.module fp=xx],,
[AC_DEFINE(HAVE_AS_DOT_MODULE, 1,
fi
gcc_GAS_CHECK_FEATURE([.micromips support],
- gcc_cv_as_micromips_support,,[--fatal-warnings],
+ 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],,
+ gcc_cv_as_mips_dtprelword,,
[.section .tdata,"awT",@progbits
x:
.word 2
[Define if your assembler supports .dtprelword.])])
gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support],
- gcc_cv_as_mips_dspr1_mult,,,
+ gcc_cv_as_mips_dspr1_mult,,
[ .set mips32r2
.set nodspr2
.set dsp
fi
gcc_GAS_CHECK_FEATURE([-mnan= support],
- gcc_cv_as_mips_nan,,
+ gcc_cv_as_mips_nan,
[-mnan=2008],,,
[AC_DEFINE(HAVE_AS_NAN, 1,
[Define if the assembler understands -mnan=.])])
# Earlier GAS versions generically support .gnu_attribute, but the
# msp430 assembler will not do anything with it.
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
- gcc_cv_as_msp430_gnu_attribute, [2,33,50],,
+ gcc_cv_as_msp430_gnu_attribute,,
[.gnu_attribute 4,1],,
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
[Define if your assembler supports .gnu_attribute.])])
gcc_GAS_CHECK_FEATURE([.mspabi_attribute support],
- gcc_cv_as_msp430_mspabi_attribute, [2,33,50],,
- [.mspabi_attribute 4,1],,
+ gcc_cv_as_msp430_mspabi_attribute,,
+ [.mspabi_attribute 4,2],,
[AC_DEFINE(HAVE_AS_MSPABI_ATTRIBUTE, 1,
[Define if your assembler supports .mspabi_attribute.])])
+ if test x$enable_newlib_nano_formatted_io = xyes; then
+ AC_DEFINE(HAVE_NEWLIB_NANO_FORMATTED_IO, 1, [Define if GCC has been
+configured with --enable-newlib-nano-formatted-io.])
+ fi
+ ;;
+ nios2-*-*)
+ # Versions 2.33 and earlier lacked support for the %gotoff relocation
+ # syntax that is documented in the ABI specification.
+ gcc_GAS_CHECK_FEATURE([support for %gotoff relocations in constant data],
+ gcc_cv_as_nios2_gotoff_relocation,,
+[ .extern foo
+ .data
+ .long %gotoff(foo)],,
+ [AC_DEFINE(HAVE_AS_NIOS2_GOTOFF_RELOCATION, 1,
+ [Define if your assembler supports %gotoff relocation syntax.])])
;;
riscv*-*-*)
gcc_GAS_CHECK_FEATURE([.attribute support],
- gcc_cv_as_riscv_attribute, [2,32,0],,
+ gcc_cv_as_riscv_attribute,,
[.attribute stack_align,4],,
[AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1,
[Define if your assembler supports .attribute.])])
+ gcc_GAS_CHECK_FEATURE([-misa-spec= support],
+ gcc_cv_as_riscv_isa_spec,
+ [-misa-spec=2.2],,,
+ [AC_DEFINE(HAVE_AS_MISA_SPEC, 1,
+ [Define if the assembler understands -misa-spec=.])])
+ gcc_GAS_CHECK_FEATURE([-march=rv32i_zifencei support],
+ gcc_cv_as_riscv_march_zifencei,
+ [-march=rv32i_zifencei],,,
+ [AC_DEFINE(HAVE_AS_MARCH_ZIFENCEI, 1,
+ [Define if the assembler understands -march=rv*_zifencei.])])
;;
s390*-*-*)
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
- gcc_cv_as_s390_gnu_attribute, [2,18,0],,
+ gcc_cv_as_s390_gnu_attribute,,
[.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],,
+ gcc_cv_as_s390_machine_machinemode,,
[ .machinemode push
.machinemode pop
.machine push
[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],,
+ gcc_cv_as_s390_architecture_modifiers,,
[ .machine z13+vx ],,
[AC_DEFINE(HAVE_AS_ARCHITECTURE_MODIFIERS, 1,
[Define if your assembler supports architecture modifiers.])])
gcc_GAS_CHECK_FEATURE([vector load/store alignment hints],
- gcc_cv_as_s390_vector_loadstore_alignment_hints, [2,31,0],,
+ gcc_cv_as_s390_vector_loadstore_alignment_hints,,
[ vl %v24,0(%r15),3 ],,
[AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS, 1,
[Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument.])])
+ gcc_GAS_CHECK_FEATURE([vector load/store alignment hints on z13],
+ gcc_cv_as_s390_vector_loadstore_alignment_hints_on_z13, [-mzarch -march=z13],
+ [ vl %v24,0(%r15),3 ],,
+ [AC_DEFINE(HAVE_AS_VECTOR_LOADSTORE_ALIGNMENT_HINTS_ON_Z13, 1,
+ [Define if your assembler supports vl/vst/vlm/vstm with an optional alignment hint argument on z13.])])
;;
esac
;;
esac
+# This tests if the assembler supports two registers for global_load functions
+# (like in LLVM versions <12) or one register (like in LLVM 12).
+case "$target" in
+ amdgcn-* | gcn-*)
+ AC_MSG_CHECKING(assembler fix for global_load functions)
+ gcc_cv_as_gcn_global_load_fixed=yes
+ if test x$gcc_cv_as != x; then
+ cat > conftest.s <<EOF
+ global_store_dwordx2 v[[1:2]], v[[4:5]], s[[14:15]]
+EOF
+ if $gcc_cv_as -triple=amdgcn--amdhsa -filetype=obj -mcpu=gfx900 -o conftest.o conftest.s > /dev/null 2>&1; then
+ gcc_cv_as_gcn_global_load_fixed=no
+ fi
+ rm -f conftest.s conftest.o conftest
+ fi
+ global_load_fixed=`if test x$gcc_cv_as_gcn_global_load_fixed = xyes; then echo 1; else echo 0; fi`
+ AC_DEFINE_UNQUOTED(HAVE_GCN_ASM_GLOBAL_LOAD_FIXED, $global_load_fixed,
+ [Define if your assembler has fixed global_load functions.])
+ AC_MSG_RESULT($gcc_cv_as_gcn_global_load_fixed)
+ ;;
+esac
+
+case "$target" in
+ amdgcn-* | gcn-*)
+ gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+sram-ecc for fiji],
+ gcc_cv_as_gcn_sram_ecc_fiji,
+ [-triple=amdgcn--amdhsa -mcpu=fiji -mattr=-xnack -mattr=+sram-ecc],
+ [.amdgcn_target "amdgcn-unknown-amdhsa--gfx803+sram-ecc"],,
+ [AC_DEFINE(HAVE_GCN_SRAM_ECC_FIJI, 1,
+ [Define if your assembler allows -mattr=+sram-ecc for fiji.])])
+ gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+sram-ecc for gfx900],
+ gcc_cv_as_gcn_sram_ecc_gfx900,
+ [-triple=amdgcn--amdhsa -mcpu=gfx900 -mattr=-xnack -mattr=+sram-ecc],
+ [.amdgcn_target "amdgcn-unknown-amdhsa--gfx900+sram-ecc"],,
+ [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX900, 1,
+ [Define if your assembler allows -mattr=+sram-ecc for gfx900.])])
+ gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+sram-ecc for gfx906],
+ gcc_cv_as_gcn_sram_ecc_gfx906,
+ [-triple=amdgcn--amdhsa -mcpu=gfx906 -mattr=-xnack -mattr=+sram-ecc],
+ [.amdgcn_target "amdgcn-unknown-amdhsa--gfx906+sram-ecc"],,
+ [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX906, 1,
+ [Define if your assembler allows -mattr=+sram-ecc for gfx906.])])
+ gcc_GAS_CHECK_FEATURE([assembler accepts -mattr=+sram-ecc for gfx908],
+ gcc_cv_as_gcn_sram_ecc_gfx908,
+ [-triple=amdgcn--amdhsa -mcpu=gfx908 -mattr=-xnack -mattr=+sram-ecc],
+ [.amdgcn_target "amdgcn-unknown-amdhsa--gfx908+sram-ecc"],,
+ [AC_DEFINE(HAVE_GCN_SRAM_ECC_GFX908, 1,
+ [Define if your assembler allows -mattr=+sram-ecc for gfx908.])])
+ ;;
+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,
.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],
+ gcc_cv_as_dwarf2_debug_line,,
+ [$conftest_s],
[if test x$gcc_cv_objdump != x \
&& $gcc_cv_objdump -h conftest.o 2> /dev/null \
| grep debug_line > /dev/null 2>&1; then
# by DW_AT_decl_file. Approximate this test by testing if
# the assembler bitches if the same index is assigned twice.
gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
- gcc_cv_as_dwarf2_file_buggy,,,
+ gcc_cv_as_dwarf2_file_buggy,,
[ .file 1 "foo.s"
.file 1 "bar.s"])
.uleb128 .LVU1
"
gcc_GAS_CHECK_FEATURE([dwarf2 debug_view support],
- gcc_cv_as_dwarf2_debug_view,
- [elf,2,27,0],,[$conftest_s],,
+ gcc_cv_as_dwarf2_debug_view,,
+ [$conftest_s],,
[AC_DEFINE(HAVE_AS_DWARF2_DEBUG_VIEW, 1,
[Define if your assembler supports views in dwarf2 .loc directives.])])
fi
gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
gcc_cv_as_gdwarf2_flag,
- [elf,2,11,0], [--gdwarf2], [$insn],,
+ [--gdwarf2], [$insn],,
[AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
[Define if your assembler supports the --gdwarf2 option.])])
+ gcc_GAS_CHECK_FEATURE([--gdwarf-5 option],
+ gcc_cv_as_gdwarf_5_flag,
+ [--gdwarf-5], [$insn],
+ [if test x$gcc_cv_objdump != x \
+ && $gcc_cv_objdump -Wi conftest.o 2>&1 \
+ | grep DW_TAG_compile_unit > /dev/null 2>&1; then
+ gcc_cv_as_gdwarf_5_flag=yes;
+ fi],[AC_DEFINE(HAVE_AS_GDWARF_5_DEBUG_FLAG, 1,
+[Define if your assembler supports the --gdwarf-5 option.])])
+
+ case $target_os in
+ win32 | pe | cygwin* | mingw32*)
+ section_flags=\"dr\"
+ function_type=".def foo; .scl 2; .type 32; .endef"
+ function_size="";;
+ *)
+ section_flags=\"\",%progbits
+ function_type=".type foo, %function"
+ function_size=".size foo, .-foo";;
+ esac
+ dwarf4_debug_info_size=0x46
+ dwarf4_high_pc_form=7
+ dwarf4_debug_aranges_size=0x2c
+ dwarf4_line_sz=9
+ for dwarf4_addr_size in 8 4; do
+ conftest_s="\
+ .file \"a.c\"
+ .text
+.Ltext0:
+ .p2align 4
+ .globl foo
+ $function_type
+foo:
+.LFB0:
+.LM1:
+ $insn
+.LM2:
+.LFE0:
+ $function_size
+.Letext0:
+ .section .debug_info,$section_flags
+.Ldebug_info0:
+ .4byte $dwarf4_debug_info_size
+ .2byte 0x4
+ .4byte .Ldebug_abbrev0
+ .byte 0x$dwarf4_addr_size
+ .byte 0x1
+ .ascii \"GNU C17\\0\"
+ .byte 0xc
+ .ascii \"a.c\\0\"
+ .ascii \"/\\0\"
+ .${dwarf4_addr_size}byte .Ltext0
+ .${dwarf4_addr_size}byte .Letext0-.Ltext0
+ .4byte .Ldebug_line0
+ .byte 0x2
+ .ascii \"foo\\0\"
+ .byte 0x1
+ .byte 0x2
+ .byte 0x1
+ .${dwarf4_addr_size}byte .LFB0
+ .${dwarf4_addr_size}byte .LFE0-.LFB0
+ .byte 0x1
+ .byte 0x9c
+ .byte 0
+ .section .debug_abbrev,$section_flags
+.Ldebug_abbrev0:
+ .byte 0x1
+ .byte 0x11
+ .byte 0x1
+ .byte 0x25
+ .byte 0x8
+ .byte 0x13
+ .byte 0xb
+ .byte 0x3
+ .byte 0x8
+ .byte 0x1b
+ .byte 0x8
+ .byte 0x11
+ .byte 0x1
+ .byte 0x12
+ .byte 0x$dwarf4_high_pc_form
+ .byte 0x10
+ .byte 0x17
+ .byte 0
+ .byte 0
+ .byte 0x2
+ .byte 0x2e
+ .byte 0
+ .byte 0x3f
+ .byte 0x19
+ .byte 0x3
+ .byte 0x8
+ .byte 0x3a
+ .byte 0xb
+ .byte 0x3b
+ .byte 0xb
+ .byte 0x39
+ .byte 0xb
+ .byte 0x11
+ .byte 0x1
+ .byte 0x12
+ .byte 0x$dwarf4_high_pc_form
+ .byte 0x40
+ .byte 0x18
+ .byte 0
+ .byte 0
+ .byte 0
+ .section .debug_aranges,$section_flags
+ .4byte $dwarf4_debug_aranges_size
+ .2byte 0x2
+ .4byte .Ldebug_info0
+ .byte 0x8
+ .byte 0
+ .2byte 0
+ .2byte 0
+ .${dwarf4_addr_size}byte .Ltext0
+ .${dwarf4_addr_size}byte .Letext0-.Ltext0
+ .${dwarf4_addr_size}byte 0
+ .${dwarf4_addr_size}byte 0
+ .section .debug_line,$section_flags
+.Ldebug_line0:
+ .4byte .LELT0-.LSLT0
+.LSLT0:
+ .2byte 0x4
+ .4byte .LELTP0-.LASLTP0
+.LASLTP0:
+ .byte 0x1
+ .byte 0x1
+ .byte 0x1
+ .byte 0xf6
+ .byte 0xf2
+ .byte 0xd
+ .byte 0
+ .byte 0x1
+ .byte 0x1
+ .byte 0x1
+ .byte 0x1
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0x1
+ .byte 0
+ .byte 0
+ .byte 0x1
+ .byte 0
+ .ascii \"a.c\\0\"
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 0
+.LELTP0:
+ .byte 0
+ .byte 0x$dwarf4_line_sz
+ .byte 0x2
+ .${dwarf4_addr_size}byte .LM1
+ .byte 0x18
+ .byte 0x5
+ .byte 0x1
+ .byte 0
+ .byte 0x$dwarf4_line_sz
+ .byte 0x2
+ .${dwarf4_addr_size}byte .LM2
+ .byte 0x1
+ .byte 0x5
+ .byte 0x1
+ .byte 0
+ .byte 0x$dwarf4_line_sz
+ .byte 0x2
+ .${dwarf4_addr_size}byte .Letext0
+ .byte 0
+ .byte 0x1
+ .byte 0x1
+.LELT0:
+ .section .debug_str,$section_flags
+ .ident \"GCC\"
+"
+ dwarf4_success=no
+ if test $dwarf4_addr_size = 4; then
+ gcc_GAS_CHECK_FEATURE([assembly of compiler generated 32-bit .debug_line],
+ gcc_cv_as_debug_line_32_flag,,
+ [$conftest_s],,
+ [dwarf4_success=yes])
+ else
+ gcc_GAS_CHECK_FEATURE([assembly of compiler generated 64-bit .debug_line],
+ gcc_cv_as_debug_line_64_flag,,
+ [$conftest_s],,
+ [dwarf4_success=yes])
+ fi
+ if test $dwarf4_success = yes; then
+ dwarf4_success=no
+ gcc_GAS_CHECK_FEATURE([--gdwarf-4 not refusing compiler generated .debug_line],
+ gcc_cv_as_dwarf_4_debug_line_flag,
+ [--gdwarf-4], [$conftest_s],,
+ [dwarf4_success=yes])
+ break
+ fi
+ dwarf4_debug_info_size=0x36
+ dwarf4_high_pc_form=6
+ dwarf4_debug_aranges_size=0x1c
+ dwarf4_line_sz=5
+ done
+
+ if test $dwarf4_success = yes; then
+ conftest_s="\
+ .file \"foo.c\"
+ .text
+bar:
+#APP
+# 82 \"xxx.h\" 1
+ $insn
+# 0 \"\" 2
+#NO_APP
+ $insn
+foo:
+ .file 1 \"foo.c\"
+ $insn
+ .file 2 \"foo.h\"
+ ret
+"
+ dwarf4_success=no
+ gcc_GAS_CHECK_FEATURE([--gdwarf-4 with the APP marker],
+ gcc_cv_as_dwarf_4_app_flag,
+ [--gdwarf-4], [$conftest_s],, [dwarf4_success=yes])
+ fi
+
+ if test $dwarf4_success = yes; then
+ conftest_s="\
+ .text
+ .globl foo
+ $function_type
+foo:
+ $insn
+ $function_size
+ .file 1 \"foo.c\"
+"
+ gcc_GAS_CHECK_FEATURE([working --gdwarf-4/--gdwarf-5 for all sources],
+ gcc_cv_as_working_gdwarf_n_flag,
+ [--gdwarf-4],
+ [$conftest_s],
+ [changequote(,)dnl
+ if test x$gcc_cv_objdump != x \
+ && $gcc_cv_objdump -W conftest.o 2>&1 \
+ | grep conftest.s > /dev/null 2>&1; then
+ gcc_cv_as_working_gdwarf_n_flag=no
+ else
+ gcc_cv_as_working_gdwarf_n_flag=yes
+ fi
+ changequote([,])dnl])
+ if test $gcc_cv_as_working_gdwarf_n_flag = yes; then
+ AC_DEFINE(HAVE_AS_WORKING_DWARF_N_FLAG, 1,
+[Define if your assembler supports --gdwarf-4/--gdwarf-5 even with
+ compiler generated .debug_line.])
+ fi
+ fi
+
gcc_GAS_CHECK_FEATURE([--gstabs option],
gcc_cv_as_gstabs_flag,
- [elf,2,11,0], [--gstabs], [$insn],,
+ [--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],,
+ [--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,,,,
+ gcc_cv_as_compress_debug,,,
[# gas compiled without zlib cannot compress debug sections and warns
# about it, but still exits successfully. So check for this, too.
if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null
AC_DEFINE_UNQUOTED(AS_NO_COMPRESS_DEBUG_OPTION, "$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,
- ,,
+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.])])
*) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
Valid choices are 'yes' and 'no'.]) ;;
esac],
- [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
- [elf,2,19,52],,
+ [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,,
[.type foo, '$target_type_format_char'gnu_unique_object],,
# We need to unquote above to to use the definition from config.gcc.
# Also check for ld.so support, i.e. glibc 2.11 or higher.
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
+ if 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
[Define to 1 if ld64 supports '-export_dynamic'.])
fi
+if test x"$dsymutil_flag" = x"yes"; then
+
+ # If the user specified a dsymutil path, then we will already have the
+ # version string, otherwise, pick it up.
+ if test x"$gcc_cv_dsymutil" = x; then
+ AC_MSG_WARN([dsymutil is a required tool for this system, but not found])
+ dsymutil_vers="tool unspecified"
+ elif test x"$dsymutil_vers" = x; then
+ dsymutil_vers=`$gcc_cv_dsymutil -v /dev/null 2>&1`
+ fi
+
+ dsymutil_temp=`echo $dsymutil_vers | sed 1q`
+ AC_MSG_CHECKING(dsymutil version "$dsymutil_temp")
+ if echo $dsymutil_temp | grep dwarfutils- > /dev/null; then
+ dsymutil_kind=DWARFUTILS
+ dsymutil_vers=`echo $dsymutil_temp | sed 's/.*dwarfutils-\([[0-9\.]]*\).*/\1/'`
+ elif echo $dsymutil_temp | grep clang- > /dev/null; then
+ dsymutil_kind=CLANG
+ dsymutil_vers=`echo $dsymutil_temp | sed 's/.*clang-\([[0-9\.]]*\).*/\1/'`
+ elif echo $dsymutil_temp | grep 'LLVM version ' > /dev/null; then
+ dsymutil_kind=LLVM
+ dsymutil_vers=`echo $dsymutil_temp | sed 's/.*LLVM\ version\ \([[0-9\.]]*\).*/\1/'`
+ else
+ dsymutil_kind=UNKNOWN
+ dsymutil_vers="0.0"
+ fi
+ dsymutil_major=`expr "$dsymutil_vers" : '\([[0-9]]*\)'`
+ dsymutil_minor=`expr "$dsymutil_vers" : '[[0-9]]*\.\([[0-9]]*\)'`
+ dsymutil_tiny=`expr "$dsymutil_vers" : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+ if test x"${dsymutil_minor}" = x; then
+ dsymutil_minor=0
+ fi
+ if test x"${dsymutil_tiny}" = x; then
+ dsymutil_tiny=0
+ fi
+ AC_DEFINE_UNQUOTED(DSYMUTIL_VERSION, [$dsymutil_kind,${dsymutil_major},${dsymutil_minor},${dsymutil_tiny}],
+ [Define to the dsymutil version.])
+ AC_MSG_RESULT($dsymutil_vers : $dsymutil_kind ${dsymutil_major} ${dsymutil_minor} ${dsymutil_tiny} )
+fi
+
+case $target_os in
+ win32 | pe | cygwin* | mingw32*)
+ AC_MSG_CHECKING(broken PE linker dwarf5 support)
+ gcc_cv_ld_broken_pe_dwarf5=yes
+ if test $in_tree_ld = yes ; then
+ if grep -q '\.debug_loclists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \
+ $gcc_cv_ld_gld_srcdir/scripttempl/pe*.sc \
+ && grep -q '\.debug_rnglists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \
+ $gcc_cv_ld_gld_srcdir/scripttempl/pe*.sc; then
+ gcc_cv_ld_broken_pe_dwarf5=no
+ fi
+ else
+ if $gcc_cv_ld --verbose 2>&1 | grep -q '\.debug_loclists.*BLOCK.*__section_alignment__.*NOLOAD.*:' \
+ && $gcc_cv_ld --verbose 2>&1 | grep -q '\.debug_rnglists.*BLOCK.*__section_alignment__.*NOLOAD.*:'; then
+ gcc_cv_ld_broken_pe_dwarf5=no
+ fi
+ fi
+ if test x$gcc_cv_ld_broken_pe_dwarf5 = xyes; then
+ AC_DEFINE(HAVE_LD_BROKEN_PE_DWARF5, 1,
+ [Define if the PE linker has broken DWARF 5 support.])
+ fi
+ AC_MSG_RESULT($gcc_cv_ld_broken_pe_dwarf5)
+
+ AC_MSG_CHECKING(PE linker --disable-dynamicbase support)
+ gcc_cv_ld_disable_dynamicbase=no
+ if test $in_tree_ld = yes; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 36 -o "$gcc_cv_gld_major_version" -gt 2; then \
+ gcc_cv_ld_disable_dynamicbase=yes
+ fi
+ else
+ if $gcc_cv_ld --help 2>&1 | grep -q 'disable\-]dynamicbase' > /dev/null; then
+ gcc_cv_ld_disable_dynamicbase=yes
+ fi
+ fi
+ if test x"$gcc_cv_ld_disable_dynamicbase" = xyes; then
+ AC_DEFINE(HAVE_LD_PE_DISABLE_DYNAMICBASE, 1,
+ [Define if the PE linker supports --disable-dynamicbase option.])
+ fi
+ AC_MSG_RESULT($gcc_cv_ld_disable_dynamicbase)
+ ;;
+esac
+
# --------
# UNSORTED
# --------
*-*-linux*)
emul_name="-melf64ppc"
;;
+ *le-*-freebsd*)
+ emul_name="-melf64lppc_fbsd"
+ ;;
*-*-freebsd*)
emul_name="-melf64ppc_fbsd"
;;
AC_ARG_WITH(long-double-128,
[AS_HELP_STRING([--with-long-double-128],
[use 128-bit long double by default])],
- gcc_cv_target_ldbl128="$with_long_double_128",
+ gcc_cv_target_ldbl128="$with_long_double_128", [
+ case "$target" in
+ s390*-*-linux-musl*)
+ gcc_cv_target_ldbl128=yes
+ ;;
+ powerpc*-*-linux-musl*)
+ gcc_cv_target_ldbl128=no
+ ;;
+ *)]
[GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [
[gcc_cv_target_ldbl128=no
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
$target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
- ]])])
+ ]])]
+ [
+ ;;
+ esac
+ ])
;;
esac
if test x$gcc_cv_target_ldbl128 = xyes; then
;;
esac
;;
- xpowerpc64*-*-linux*:*)
+ powerpc64*-*-linux*:*)
AC_MSG_ERROR([--with-long-double-format argument should be ibm or ieee])
with_long_double_format=""
;;
[Define if your target C Library provides the AT_HWCAP value in the TCB])
fi
+# Check if the target LIBC handles PT_GNU_STACK.
+gcc_cv_libc_gnustack=unknown
+case "$target" in
+ mips*-*-linux*)
+ GCC_GLIBC_VERSION_GTE_IFELSE([2], [31], [gcc_cv_libc_gnustack=yes], )
+ ;;
+esac
+if test x$gcc_cv_libc_gnustack = xyes; then
+ AC_DEFINE(TARGET_LIBC_GNUSTACK, 1,
+ [Define if your target C Library properly handles PT_GNU_STACK])
+fi
+
AC_MSG_CHECKING(dl_iterate_phdr in target C library)
gcc_cv_target_dl_iterate_phdr=unknown
case "$target" in
fi
AC_SUBST(DO_LINK_MUTEX)
+dnl Whether to prevent multiple GCC front-ends from linking at the same time
+
+AC_MSG_CHECKING([whether to serialize linking of multiple front-ends])
+ AC_ARG_ENABLE(link-serialization,
+[AS_HELP_STRING([--enable-link-serialization],
+ [avoid linking multiple GCC front-ends at once using make
+ dependencies to avoid thrashing on the build machine])],
+ do_link_serialization=$enableval,
+ do_link_serialization=no)
+AC_MSG_RESULT($do_link_serialization)
+
+case "$do_link_serialization" in
+ yes)
+ DO_LINK_SERIALIZATION=1;;
+ [[1-9]] | [[1-9]][[0-9]] | [[1-9]][[0-9]][[0-9]])
+ DO_LINK_SERIALIZATION=$do_link_serialization;;
+ no)
+ DO_LINK_SERIALIZATION=;;
+ *)
+ AC_MSG_ERROR(bad value ${do_link_serialization} given for --enable-link-serialization) ;;
+esac
+AC_SUBST(DO_LINK_SERIALIZATION)
+
# --------------
# Language hooks
# --------------
all_languages=
all_compilers=
all_outputs='Makefile'
-# List of language makefile fragments.
+# List of language configure and makefile fragments.
+all_lang_configurefrags=
all_lang_makefrags=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
esac
$ok || continue
- all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
+ all_lang_configurefrags="$all_lang_configurefrags \$(srcdir)/$gcc_subdir/config-lang.in"
+ if test "x$language" = xc && test -n "$all_lang_makefrags"; then
+ # Put c/Make-lang.in fragment first to match serialization languages order.
+ all_lang_makefrags="\$(srcdir)/$gcc_subdir/Make-lang.in $all_lang_makefrags"
+ else
+ all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
+ fi
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"
echo "lang.$t: $x" >> Make-hooks
done
+echo "ifeq (\$(DO_LINK_SERIALIZATION),)" >> Make-hooks
+echo "SERIAL_LIST =" >> Make-hooks
+echo else >> Make-hooks
+lang_cnt=0
+lang_list=
+prev=c
+serialization_languages=c
+for lang in $all_selected_languages
+do
+ test $lang = c && continue
+ if test $lang = lto; then
+ serialization_languages="$serialization_languages lto1 lto2"
+ else
+ serialization_languages="$serialization_languages $lang"
+ fi
+done
+for lang in $serialization_languages
+do
+ test $lang = c && continue
+ lang_cnt=`expr $lang_cnt + 1`
+ lang_list=" $prev$lang_list"
+ prev=${lang}
+done
+echo "SERIAL_LIST = \$(wordlist \$(DO_LINK_SERIALIZATION),$lang_cnt,$lang_list)" >> Make-hooks
+echo endif >> Make-hooks
+echo "SERIAL_COUNT = `expr $lang_cnt + 1`" >> Make-hooks
+echo "INDEX.c = 0" >> Make-hooks
+lang_idx=1
+for lang in $serialization_languages
+do
+ test $lang = c && continue
+ echo "$lang.prev = \$(if \$(word $lang_cnt,\$(SERIAL_LIST)),\$(\$(word $lang_cnt,\$(SERIAL_LIST)).serial))" >> Make-hooks
+ echo "INDEX.$lang = $lang_idx" >> Make-hooks
+ lang_cnt=`expr $lang_cnt - 1`
+ lang_idx=`expr $lang_idx + 1`
+done
+
# --------
# Option include files
# --------
AC_SUBST(srcdir)
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
+AC_SUBST(all_lang_configurefrags)
AC_SUBST(all_lang_makefrags)
AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
AC_SUBST(gcc_config_arguments)
AC_SUBST(gcc_gxx_include_dir)
AC_SUBST(gcc_gxx_include_dir_add_sysroot)
+AC_SUBST(gcc_gxx_libcxx_include_dir)
+AC_SUBST(gcc_gxx_libcxx_include_dir_add_sysroot)
AC_SUBST(host_exeext)
AC_SUBST(host_xm_file_list)
AC_SUBST(host_xm_include_list)
AC_DEFINE_UNQUOTED(DIAGNOSTICS_COLOR_DEFAULT, $DIAGNOSTICS_COLOR_DEFAULT,
[The default for -fdiagnostics-color option])
+# Specify what should be the default of -fdiagnostics-urls option.
+AC_ARG_WITH([diagnostics-urls],
+[AC_HELP_STRING([--with-diagnostics-urls={never,auto,auto-if-env,always}],
+ [specify the default of -fdiagnostics-urls option
+ auto-if-env stands for -fdiagnostics-urls=auto if
+ GCC_URLS or TERM_URLS environment variable is present and
+ -fdiagnostics-urls=never otherwise])],
+[case x"$withval" in
+ xnever)
+ DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_NO
+ ;;
+ xauto)
+ DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_AUTO
+ ;;
+ xauto-if-env)
+ DIAGNOSTICS_URLS_DEFAULT=-1
+ ;;
+ xalways)
+ DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_YES
+ ;;
+ *)
+ AC_MSG_ERROR([$withval is an invalid option to --with-diagnostics-urls])
+ ;;
+ esac],
+[DIAGNOSTICS_URLS_DEFAULT=DIAGNOSTICS_URL_AUTO])
+AC_DEFINE_UNQUOTED(DIAGNOSTICS_URLS_DEFAULT, $DIAGNOSTICS_URLS_DEFAULT,
+ [The default for -fdiagnostics-urls option])
+
# Generate gcc-driver-name.h containing GCC_DRIVER_NAME for the benefit
# of jit/jit-playback.c.
gcc_driver_version=`eval "${get_gcc_base_ver} $srcdir/BASE-VER"`
fi
AC_SUBST([NO_PIE_FLAG])
+# Enable Intel CET on Intel CET enabled host if jit is enabled.
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+case x$enable_languages in
+*jit*)
+ ;;
+*)
+ CET_HOST_FLAGS=
+ ;;
+esac
+AC_SUBST(CET_HOST_FLAGS)
+
# Check linker supports '-z bndplt'
ld_bndplt_support=no
AC_MSG_CHECKING(linker -z bndplt option)
fi
AC_MSG_RESULT($ld_pushpopstate_support)
+# On s390, float_t has historically been statically defined as double for no
+# good reason. To comply with the C standard in the light of this definition,
+# gcc has evaluated float expressions in double precision when in
+# standards-compatible mode or when given -fexcess-precision=standard. To enable
+# a smooth transition towards the new model used by most architectures, where
+# gcc describes its behavior via the macro __FLT_EVAL_METHOD__ and glibc derives
+# float_t from that, this behavior can be configured with
+# --enable-s390-excess-float-precision. When given as enabled, that flag selects
+# the old model. When omitted, native builds and cross compiles that have target
+# libc headers will detect whether libc clamps float_t to double and in that
+# case maintain the old model. Otherwise, they will default to the new model.
+AC_ARG_ENABLE(s390-excess-float-precision,
+ [AS_HELP_STRING([--enable-s390-excess-float-precision],
+ [on s390 targets, evaluate float with double precision
+ when in standards-conforming mode])],
+ [],[enable_s390_excess_float_precision=auto])
+
+case $target in
+ s390*-linux*)
+ if test x"$enable_s390_excess_float_precision" = xauto; then
+ # Can we autodetect the behavior of the target libc?
+ if test "$target" = "$host" -a "$host" = "$build"; then
+ enable_s390_excess_float_precision=autodetect
+ elif test "x$with_headers" != xno; then
+ # cross build. are target headers available?
+ # carefully coerce the build-system compiler to use target headers
+ saved_CXXFLAGS="$CXXFLAGS"
+ fixed_XGCC_FLAGS_FOR_TARGET=`echo "$XGCC_FLAGS_FOR_TARGET" | sed 's/-B/-idirafter/g'`
+ CROSS_TEST_CXXFLAGS="-nostdinc $fixed_XGCC_FLAGS_FOR_TARGET"
+ CXXFLAGS="$CROSS_TEST_CXXFLAGS"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#include <math.h>
+]])], [enable_s390_excess_float_precision=autodetect], [])
+ CXXFLAGS="$saved_CXXFLAGS"
+ fi
+
+ if test x"$enable_s390_excess_float_precision" = xautodetect; then
+ saved_CXXFLAGS="$CXXFLAGS"
+ if ! test "$target" = "$host" -a "$host" = "$build"; then
+ CXXFLAGS="$CROSS_TEST_CXXFLAGS"
+ unset CROSS_TEST_CXXFLAGS
+ fi
+ AC_CACHE_CHECK([for glibc clamping float_t to double],
+ gcc_cv_float_t_clamped_to_double, [
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#define __FLT_EVAL_METHOD__ 0
+#include <math.h>
+int dummy[sizeof(float_t) == sizeof(double) ? 1 : -1];
+]])],
+ [gcc_cv_float_t_clamped_to_double=yes],
+ [gcc_cv_float_t_clamped_to_double=no])])
+ CXXFLAGS="$saved_CXXFLAGS"
+ enable_s390_excess_float_precision="$gcc_cv_float_t_clamped_to_double"
+ else
+ # no way to detect behavior of target libc, default to new model
+ enable_s390_excess_float_precision=no
+ fi
+ fi
+
+ GCC_TARGET_TEMPLATE(ENABLE_S390_EXCESS_FLOAT_PRECISION)
+ if test x"$enable_s390_excess_float_precision" = xyes; then
+ AC_DEFINE(ENABLE_S390_EXCESS_FLOAT_PRECISION, 1,
+[Define to enable evaluating float expressions with double precision in
+standards-compatible mode on s390 targets.])
+ fi
+ ;;
+esac
+
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
projects / thirdparty / gcc.git / blobdiff