# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+# Copyright (C) 1997-2021 Free Software Foundation, Inc.
#This file is part of GCC.
# Initialization and sanity checks
# --------------------------------
-AC_PREREQ(2.64)
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
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 ($DEFAULT_DSYMUTIL)])
+else
+ AC_MSG_RESULT(no)
+fi
+
# ----------------------
# Find default assembler
# ----------------------
# -------------------------
AC_USE_SYSTEM_EXTENSIONS
+
AC_PROG_CPP
AC_C_INLINE
# -fno-strict-aliasing *and* is older than GCC 4.3.
CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
AC_MSG_CHECKING([whether $CXX is affected by placement new aliasing bug])
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#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])])
[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])
+ [-Wcast-qual -Wno-error=format-diag $wf_opt])),
+ [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
- [c_loose_warn])
+ m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ],
+ [-Wno-error=format-diag])), [c_loose_warn])
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-Wmissing-format-attribute ],
[-Woverloaded-virtual])), [strict_warn])
AC_SUBST(with_cpu)
AC_SUBST(with_float)
+# default stack clash protection guard size as power of twos in bytes.
+# Please keep these in sync with params.def.
+stk_clash_min=12
+stk_clash_max=30
+
+# Keep the default value when the option is not used to 0, this allows us to
+# distinguish between the cases where the user specifially set a value via
+# configure and when the normal default value is used.
+AC_ARG_WITH(stack-clash-protection-guard-size,
+[AS_HELP_STRING([--with-stack-clash-protection-guard-size=size],
+[Set the default stack clash protection guard size for specific targets as a power of two in bytes.])],
+[DEFAULT_STK_CLASH_GUARD_SIZE="$with_stack_clash_protection_guard_size"], [DEFAULT_STK_CLASH_GUARD_SIZE=0])
+if test $DEFAULT_STK_CLASH_GUARD_SIZE -ne 0 \
+ && (test $DEFAULT_STK_CLASH_GUARD_SIZE -lt $stk_clash_min \
+ || test $DEFAULT_STK_CLASH_GUARD_SIZE -gt $stk_clash_max); then
+ AC_MSG_ERROR(m4_normalize([
+ Invalid value $DEFAULT_STK_CLASH_GUARD_SIZE for --with-stack-clash-protection-guard-size. \
+ Must be between $stk_clash_min and $stk_clash_max.]))
+fi
+
+AC_DEFINE_UNQUOTED(DEFAULT_STK_CLASH_GUARD_SIZE, $DEFAULT_STK_CLASH_GUARD_SIZE,
+ [Define to larger than zero set the default stack clash protector size.])
+
# Enable __cxa_atexit for C++.
AC_ARG_ENABLE(__cxa_atexit,
[AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
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,"$CHANGES_ROOT_URL",
+ [Define to the root for URLs about GCC changes.])
+
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
esac],
[enable_languages=c])
+# If top-level libada has been disabled, then wire in install-gnatlib
+# invocation with `make install', so that one can build and install
+# the library manually with `make -C gcc all gnatlib gnattools install'.
+if test x"$enable_libada" = xno; then
+ gnat_install_lib=gnat-install-lib
+else
+ gnat_install_lib=
+fi
+AC_SUBST(gnat_install_lib)
+
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.])
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"
LIBS="$save_LIBS"
AC_SUBST(LDEXP_LIB)
+# Some systems need dlopen
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(dlopen, dl)
+DL_LIB="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(DL_LIB)
+
# Use <inttypes.h> only if it exists,
# doesn't clash with <sys/types.h>, declares intmax_t and defines
# PRId64
[Define if you have a working <inttypes.h> header file.])
fi
+# Look for the ZSTD package.
+ZSTD_INCLUDE=
+ZSTD_LIB=
+AC_SUBST(ZSTD_INCLUDE)
+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.
+ Equivalent to --with-zstd-include=PATH/include
+ plus --with-zstd-lib=PATH/lib])])
+AC_ARG_WITH(zstd-include,
+ [AS_HELP_STRING([--with-zstd-include=PATH],
+ [specify directory for installed zstd include files])])
+AC_ARG_WITH(zstd-lib,
+ [AS_HELP_STRING([--with-zstd-lib=PATH],
+ [specify directory for the installed zstd library])])
+case "x$with_zstd" in
+ x) ;;
+ xno)
+ ZSTD_INCLUDE=
+ ZSTD_LIB=
+ ;;
+ *) ZSTD_INCLUDE=$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
+if test "x$with_zstd_lib" != x; then
+ ZSTD_LIB=$with_zstd_lib
+fi
+if test "x$ZSTD_INCLUDE" != x \
+ && test "x$ZSTD_INCLUDE" != xno; then
+ ZSTD_CPPFLAGS=-I$ZSTD_INCLUDE
+fi
+if test "x$ZSTD_LIB" != x \
+ && test "x$ZSTD_LIB" != xno; then
+ ZSTD_LDFLAGS=-L$ZSTD_LIB
+fi
+
+CXXFLAGS="$CXXFLAGS $ZSTD_CPPFLAGS"
+LDFLAGS="$LDFLAGS $ZSTD_LDFLAGS"
+
+AC_MSG_CHECKING(for zstd.h)
+AC_CACHE_VAL(gcc_cv_header_zstd_h,
+# We require version 1.3.0 or later. This is the first version that has
+# ZSTD_getFrameContentSize.
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[#include <zstd.h>
+#if ZSTD_VERSION_NUMBER < 10300
+#error "need zstd 1.3.0 or better"
+#endif]])],
+ [gcc_cv_header_zstd_h=yes],
+ [gcc_cv_header_zstd_h=no])])
+AC_MSG_RESULT($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
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(ZSTD_compress, zstd)
+ZSTD_LIB="$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"
powerpc*-*-darwin*)
AC_CACHE_CHECK([whether mcontext_t fields have underscores],
gcc_cv_mcontext_underscores,
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#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 $gcc_cv_mcontext_underscores = yes; then
AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
if test x$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="${tm_p_file} tm-preds.h"
+tm_d_file="${tm_d_file} defaults.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.
$(test x"$enable_mingw_wildcard" = xno; echo $?),
[Value to set mingw's _dowildcard to.])])
+AC_ARG_ENABLE(large-address-aware,
+[AS_HELP_STRING([--enable-large-address-aware],
+ [Link mingw executables with --large-address-aware])])
+AS_IF([test x"$enable_large_address_aware" = xyes],
+ [AC_DEFINE([MINGW_DEFAULT_LARGE_ADDR_AWARE], 1,
+ [Define if we should link mingw executables with --large-address-aware])])
+
AC_ARG_ENABLE(leading-mingw64-underscores,
AS_HELP_STRING([--enable-leading-mingw64-underscores],
[enable leading underscores on 64 bit mingw targets]),
AC_ARG_ENABLE(frame-pointer,
[AS_HELP_STRING([--enable-frame-pointer],
- [enable -fno-omit-frame-pointer by default for 32bit x86])], [],
+ [enable -fno-omit-frame-pointer by default for x86])], [],
[
case $target_os in
-linux* | darwin[[8912]]*)
- # Enable -fomit-frame-pointer by default for Linux and Darwin with
- # DWARF2.
+linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*)
+ # Enable -fomit-frame-pointer by default for these systems with DWARF2.
enable_frame_pointer=no
;;
*)
esac
])
+case $target in
+i[[34567]]86-*-* | x86_64-*-*)
+ if test "x$enable_cld" = xyes; then
+ tm_defines="${tm_defines} USE_IX86_CLD=1"
+ fi
+ if test "x$enable_frame_pointer" = xyes; then
+ tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1"
+ fi
+ ;;
+esac
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[AS_HELP_STRING([--disable-win32-registry],
tmake_file_="${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
esac
done
+tm_d_file_list=
+tm_d_include_list="options.h insn-constants.h"
+for f in $tm_d_file; do
+ case $f in
+ defaults.h )
+ tm_d_file_list="${tm_d_file_list} \$(srcdir)/$f"
+ tm_d_include_list="${tm_d_include_list} $f"
+ ;;
+ * )
+ tm_d_file_list="${tm_d_file_list} \$(srcdir)/config/$f"
+ tm_d_include_list="${tm_d_include_list} config/$f"
+ ;;
+ esac
+done
+
xm_file_list=
xm_include_list=
for f in $xm_file; do
# And these apply if build != host, or we are generating coverage data
if test x$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}}
AC_MSG_RESULT($gcc_cv_readelf)
fi
+# Figure out what otool we will be using.
+AS_VAR_SET_IF(gcc_cv_otool,, [
+if test -x otool$build_exeext; then
+ gcc_cv_otool=./otool$build_exeext
+elif ( set dummy $OTOOL_FOR_TARGET; test -x $[2] ); then
+ gcc_cv_otool="$OTOOL_FOR_TARGET"
+else
+ AC_PATH_PROG(gcc_cv_otool, $OTOOL_FOR_TARGET)
+fi])
+
+AC_MSG_CHECKING(what otool to use)
+if test x$gcc_cv_otool = x; then
+ AC_MSG_RESULT(not found)
+else
+ 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],,
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]*\.\([0-9]*\)'`
#
# ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
#
- # In Solaris 11.4, this was changed to
- #
- # ld: Solaris ELF Utilities: 11.4-1.3123
- #
# ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version
# numbers can be used in ld.so.1 feature checks even if a different
# linker is configured.
ld_ver=`$gcc_cv_ld -V 2>&1`
- if echo "$ld_ver" | $EGREP 'Solaris Link Editors|Solaris ELF Utilities' > /dev/null; then
+ if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
ld_vers=`echo $ld_ver | sed -n \
- -e 's,^.*: \(5\|1[0-9]\)\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\2,p'`
+ -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
if test x"$ld_is_gold" = xyes; then
:
elif echo "$ld_ver" | grep GNU > /dev/null; then
- case "${target}" in
- mmix-knuth-mmixware)
- # The linker emits by default mmo, not ELF, so "no" is appropriate.
- gcc_cv_ld_hidden=no
- ;;
- esac
if test 0"$ld_date" -lt 20020404; then
if test -n "$ld_date"; then
# If there was date string, but was earlier than 2002-04-04, fail
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
- *-*-solaris2.1[0-9]*)
+ *-*-solaris2*)
# Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
# .symbolic was only added in Solaris 9 12/02.
gcc_cv_ld_hidden=yes
gcc_AC_INITFINI_ARRAY
# Check if we have .[us]leb128, and support symbol arithmetic with it.
+# Older versions of GAS and some non-GNU assemblers, have a bugs handling
+# these directives, even when they appear to accept them.
gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
- [elf,2,11,0],,
+ [elf,2,11,0],,
[ .data
.uleb128 L2 - L1
L1:
.uleb128 1280
.sleb128 -1010
-L2:],
-[[# GAS versions before 2.11 do not support uleb128,
- # despite appearing to.
- # ??? There exists an elf-specific test that will crash
- # the assembler. Perhaps it's better to figure out whether
- # arbitrary sections are supported and try the test.
- as_ver=`$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 $as_minor -lt 11
- then :
- else gcc_cv_as_leb128=yes
- fi
- fi]],
- [AC_DEFINE(HAVE_AS_LEB128, 1,
- [Define if your assembler supports .sleb128 and .uleb128.])],
- [AC_DEFINE(HAVE_AS_LEB128, 0,
- [Define if your assembler supports .sleb128 and .uleb128.])])
+L2:
+ .uleb128 0x8000000000000000
+],
+[[
+if test "x$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 () {
.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`],
+ [`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],
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`],
+ [`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
[`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,
+ [elf,2,36,0], [--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,
+ [2,35,0], [--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],
[.section .rodata.str, "aMS", @progbits, 1])
[elf,2,12,0], [--fatal-warnings],
[.section .rodata.str, "aMS", %progbits, 1])
fi
+AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
+ [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
+[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
+
+gcc_cv_ld_aligned_shf_merge=yes
case "$target" in
- i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
- # SHF_MERGE support in Solaris 10/x86 ld is broken.
- if test x"$gnu_ld" = xno; then
- gcc_cv_as_shf_merge=no
+ # SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for
+ # alignment > 1.
+ sparc*-*-solaris2.11*)
+ if test x"$gnu_ld" = xno \
+ && test "$ld_vers_major" -lt 2 && test "$ld_vers_minor" -lt 3159; then
+ gcc_cv_ld_aligned_shf_merge=no
fi
;;
esac
-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.])
+AC_DEFINE_UNQUOTED(HAVE_LD_ALIGNED_SHF_MERGE,
+ [`if test $gcc_cv_ld_aligned_shf_merge = yes; then echo 1; else echo 0; fi`],
+[Define 0/1 if your linker supports the SHF_MERGE flag with section alignment > 1.])
gcc_GAS_CHECK_FEATURE([stabs directive], gcc_cv_as_stabs_directive, ,,
[.stabs "gcc2_compiled.",60,0,0,0],,
foo:
'
;;
- i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
+ i?86-*-solaris2* | x86_64-*-solaris2*)
conftest_s='
.group foo,.text%foo,#comdat
.section .text%foo, "ax", @progbits
;;
esac
+gcc_GAS_CHECK_FEATURE([line table is_stmt support],
+ gcc_cv_as_is_stmt,
+ [2,16,92],,
+[ .text
+ .file 1 "conf.c"
+ .loc 1 1 0 is_stmt 1],,
+[AC_DEFINE(HAVE_GAS_LOC_STMT, 1,
+ [Define if your assembler supports the .loc is_stmt sub-directive.])])
+
gcc_GAS_CHECK_FEATURE([line table discriminator support],
gcc_cv_as_discriminator,
[2,19,51],,
[AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
[Define if your assembler supports the .loc discriminator sub-directive.])])
+# Catch the newlib flag of the same name so we can gate GCC features on it.
+AC_ARG_ENABLE(newlib-nano-formatted-io,
+[AS_HELP_STRING([--enable-newlib-nano-formatted-io], [Use nano version
+ formatted IO])],
+[case "${enableval}" in
+ yes|no)
+ ;;
+ *)
+ AC_MSG_ERROR([unknown newlib-nano-formatted-io setting $enableval])
+ ;;
+esac], [])
+
# Thread-local storage - the check is heavily parameterized.
conftest_s=
tls_first_major=
;;
i[34567]86-*-* | x86_64-*-*)
case "$target" in
- i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
+ i[34567]86-*-solaris2.* | x86_64-*-solaris2.*)
on_solaris=yes
;;
*)
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
tls_first_minor=20
tls_as_opt='--fatal-warnings'
;;
+ or1k*-*-*)
+ conftest_s='
+ .section ".tdata","awT",@progbits
+foo: .long 25
+ .text
+ 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*)
conftest_s='
.extern __get_tpointer
ldr x0, [[x2, #:gotpage_lo15:globalsym]]
],,[AC_DEFINE(HAVE_AS_SMALL_PIC_RELOCS, 1,
[Define if your assembler supports relocs needed by -fpic.])])
+ # Enable Branch Target Identification Mechanism and Return Address
+ # Signing by default.
+ AC_ARG_ENABLE(standard-branch-protection,
+ [
+AS_HELP_STRING([--enable-standard-branch-protection],
+ [enable Branch Target Identification Mechanism and Return Address Signing by default for AArch64])
+AS_HELP_STRING([--disable-standard-branch-protection],
+ [disable Branch Target Identification Mechanism and Return Address Signing by default for AArch64])
+ ],
+ [
+ case $enableval in
+ yes)
+ tm_defines="${tm_defines} TARGET_ENABLE_BTI=1 TARGET_ENABLE_PAC_RET=1"
+ ;;
+ no)
+ ;;
+ *)
+ AC_MSG_ERROR(['$enableval' is an invalid value for --enable-standard-branch-protection.\
+ Valid choices are 'yes' and 'no'.])
+ ;;
+ esac
+ ],
+ [])
# Enable default workaround for AArch64 Cortex-A53 erratum 835769.
AC_ARG_ENABLE(fix-cortex-a53-835769,
[
;;
sparc*-*-*)
- gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
- [.register %g2, #scratch],,
- [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
- [Define if your assembler supports .register.])])
-
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
[-relax], [.text],,
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
[ .text
addl r15 = @ltoffx(x#), gp
;;
- ld8.mov r16 = [[r15]], x#],,
+ ld8.mov r16 = [[r15]], x#
+],,
[AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
[Define if your assembler supports ltoffx and ldxmov relocations.])])
[ .machine ppc7400])
if test x$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
;;
[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:
[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]]
[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.])])
+ gcc_GAS_CHECK_FEATURE([plt sequence marker support],
+ gcc_cv_as_powerpc_pltseq_markers, [2,31,0],-a32 --fatal-warnings,
+ [ .reloc .,R_PPC_PLTSEQ; nop],,
+ [AC_DEFINE(HAVE_AS_PLTSEQ, 1,
+ [Define if your assembler supports R_PPC*_PLTSEQ relocations.])])
+
case $target in
*-*-aix*)
gcc_GAS_CHECK_FEATURE([AIX .ref support],
[Requesting --with-nan= requires assembler support for -mnan=])
fi
;;
+ msp430-*-*)
+ # Earlier GAS versions generically support .gnu_attribute, but the
+ # msp430 assembler will not do anything with it.
+ gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
+ gcc_cv_as_msp430_gnu_attribute, [2,33,50],,
+ [.gnu_attribute 4,1],,
+ [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
+ [Define if your assembler supports .gnu_attribute.])])
+ gcc_GAS_CHECK_FEATURE([.mspabi_attribute support],
+ gcc_cv_as_msp430_mspabi_attribute, [2,33,50],,
+ [.mspabi_attribute 4,2],,
+ [AC_DEFINE(HAVE_AS_MSPABI_ATTRIBUTE, 1,
+ [Define if your assembler supports .mspabi_attribute.])])
+ if test x$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],,
+ [.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],,
[ .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],,
+ [ 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
+
# ??? 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,
# version to the per-target configury.
case "$cpu_type" in
aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \
- | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \
+ | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc \
| tilegx | tilepro | visium | xstormy16 | xtensa)
insn="nop"
;;
&& $gcc_cv_objdump -h conftest.o 2> /dev/null \
| grep debug_line > /dev/null 2>&1; then
gcc_cv_as_dwarf2_debug_line=yes
+ elif test x$gcc_cv_otool != x \
+ && $gcc_cv_otool -l conftest.o 2> /dev/null \
+ | grep debug_line > /dev/null 2>&1; then
+ gcc_cv_as_dwarf2_debug_line=yes
fi])
# The .debug_line file table must be in the exact order that
[AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
[Define if your assembler supports the --gdwarf2 option.])])
+ gcc_GAS_CHECK_FEATURE([--gdwarf-5 option],
+ gcc_cv_as_gdwarf_5_flag,
+ [elf,2,36,0], [--gdwarf-5], [$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 $dwarf4_addr_size = 4; then
+ gcc_GAS_CHECK_FEATURE([assembly of compiler generated 32-bit .debug_line],
+ gcc_cv_as_debug_line_32_flag,
+ [elf,2,36,0], [], [$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,
+ [elf,2,36,0], [], [$conftest_s],,
+ [dwarf4_success=yes])
+ fi
+ if test $dwarf4_success = yes; then
+ dwarf4_success=no
+ gcc_GAS_CHECK_FEATURE([--gdwarf-4 not refusing compiler generated .debug_line],
+ gcc_cv_as_dwarf_4_debug_line_flag,
+ [elf,2,36,0], [--gdwarf-4], [$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],,
[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($gcc_cv_ld_broken_pe_dwarf5)
+ ;;
+esac
+
# --------
# UNSORTED
# --------
saved_LDFLAGS="$LDFLAGS"
for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do
LDFLAGS="$saved_LDFLAGS -Wl,-M,${srcdir}/config/$clearcap_map"
- AC_LINK_IFELSE([int main(void) {return 0;}],
+ AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
[gcc_cv_ld_clearcap=yes; break], [gcc_cv_ld_clearcap=no])
done
LDFLAGS="$saved_LDFLAGS"
*-*-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
- # 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]]*)
+ *-*-solaris2*)
# <link.h> needs both a dl_iterate_phdr declaration and support for
# compilation with largefile support.
if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \
fi
AC_SUBST(DO_LINK_MUTEX)
+dnl Whether to prevent multiple GCC front-ends from linking at the same time
+
+AC_MSG_CHECKING([whether to serialize linking of multiple front-ends])
+ AC_ARG_ENABLE(link-serialization,
+[AS_HELP_STRING([--enable-link-serialization],
+ [avoid linking multiple GCC front-ends at once using make
+ dependencies to avoid thrashing on the build machine])],
+ do_link_serialization=$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"
check_languages="$check_languages check-$language"
done
+selftest_languages=
+for language in $all_selected_languages
+do
+ selftest_languages="$selftest_languages selftest-$language"
+done
+
# We link each language in with a set of hooks, reached indirectly via
# lang.${target}. Only do so for selected languages.
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(build_xm_defines)
AC_SUBST(build_file_translate)
AC_SUBST(check_languages)
+AC_SUBST(selftest_languages)
AC_SUBST(cpp_install_dir)
AC_SUBST(xmake_file)
AC_SUBST(tmake_file)
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_SUBST(tm_defines)
AC_SUBST(tm_p_file_list)
AC_SUBST(tm_p_include_list)
+AC_SUBST(tm_d_file_list)
+AC_SUBST(tm_d_include_list)
AC_SUBST(xm_file_list)
AC_SUBST(xm_include_list)
AC_SUBST(xm_defines)
AC_SUBST(c_target_objs)
AC_SUBST(cxx_target_objs)
AC_SUBST(fortran_target_objs)
+AC_SUBST(d_target_objs)
AC_SUBST(target_cpu_default)
AC_SUBST_FILE(language_hooks)
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} $srcdir/BASE-VER"`
[gcc_cv_c_no_fpie],
[saved_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-PIE"
- AC_COMPILE_IFELSE([int main(void) {return 0;}],
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
[gcc_cv_c_no_fpie=yes],
[gcc_cv_c_no_fpie=no])
CXXFLAGS="$saved_CXXFLAGS"])
[gcc_cv_no_pie],
[saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -no-pie"
- AC_LINK_IFELSE([int main(void) {return 0;}],
+ AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
[gcc_cv_no_pie=yes],
[gcc_cv_no_pie=no])
LDFLAGS="$saved_LDFLAGS"])
fi
AC_SUBST([NO_PIE_FLAG])
+# Enable Intel CET on Intel CET enabled host if jit is enabled.
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+case x$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