# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 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)
*) gcc_gxx_include_dir=$with_gxx_include_dir ;;
esac])
+# If both --with-sysroot and --with-gxx-include-dir are passed, we interpolate
+# the former in the latter and, upon success, compute gcc_gxx_include_dir as
+# relative to the sysroot.
+gcc_gxx_include_dir_add_sysroot=0
+
# This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
if test x${gcc_gxx_include_dir} = x; then
if test x${enable_version_specific_runtime_libs} = xyes; then
fi
gcc_gxx_include_dir="\$(libsubdir)/\$(libsubdir_to_prefix)$libstdcxx_incdir"
fi
-fi
-
-gcc_gxx_include_dir_add_sysroot=0
-if test "${with_sysroot+set}" = set; then
+elif test "${with_sysroot+set}" = set; then
gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
if test "${gcc_gxx_without_sysroot}"; then
- if test x${with_sysroot} != x/; then
- gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
- fi
+ gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
gcc_gxx_include_dir_add_sysroot=1
fi
fi
# -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, $DEFAULT_STK_CLASH_GUARD_SIZE,
+ [Define to larger than zero set the default stack clash protector size.])
+
# Enable __cxa_atexit for C++.
AC_ARG_ENABLE(__cxa_atexit,
[AS_HELP_STRING([--enable-__cxa_atexit], [enable __cxa_atexit for C++])],
], [enable_shared=yes])
AC_SUBST(enable_shared)
+AC_ARG_ENABLE(gcov,
+[ --disable-gcov don't provide libgcov and related host tools],
+[], [enable_gcov=yes])
+AC_SUBST(enable_gcov)
+
AC_ARG_WITH(specs,
[AS_HELP_STRING([--with-specs=SPECS],
[add SPECS to driver command-line processing])],
ACX_PKGVERSION([GCC])
ACX_BUGURL([https://gcc.gnu.org/bugs/])
+# Allow overriding the default URL for documentation
+AC_ARG_WITH(documentation-root-url,
+ AS_HELP_STRING([--with-documentation-root-url=URL],
+ [Root for documentation URLs]),
+ [case "$withval" in
+ yes) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ no) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ *) DOCUMENTATION_ROOT_URL="$withval"
+ ;;
+ esac],
+ DOCUMENTATION_ROOT_URL="https://gcc.gnu.org/onlinedocs/gcc/"
+)
+AC_SUBST(DOCUMENTATION_ROOT_URL)
+
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
esac],
[enable_languages=c])
+# If top-level libada has been disabled, then wire in install-gnatlib
+# invocation with `make install', so that one can build and install
+# the library manually with `make -C gcc all gnatlib gnattools install'.
+if test x"$enable_libada" = xno; then
+ gnat_install_lib=gnat-install-lib
+else
+ gnat_install_lib=
+fi
+AC_SUBST(gnat_install_lib)
+
if test x"$enable_as_accelerator_for" != x; then
AC_DEFINE(ACCEL_COMPILER, 1,
[Define if this compiler should be built as the offload target compiler.])
enable_hsa=1
else
enable_offloading=1
+ case "$tgt" in
+ *-intelmicemul-*)
+ omp_device_property=omp-device-properties-i386
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/i386/t-omp-device"
+ ;;
+ gcn*-*)
+ omp_device_property=omp-device-properties-gcn
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/gcn/t-omp-device"
+ ;;
+ nvptx*-*)
+ omp_device_property=omp-device-properties-nvptx
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/nvptx/t-omp-device"
+ ;;
+ esac
+ omp_device_properties="${omp_device_properties} ${tgt}=${omp_device_property}"
+ omp_device_property_deps="${omp_device_property_deps} ${omp_device_property}"
fi
if test x"$offload_targets" = x; then
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
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_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$with_zstd" in
+ x) ;;
+ xno)
+ ZSTD_INCLUDE=no
+ ZSTD_LIB=no
+ ;;
+ *) ZSTD_INCLUDE=$with_zstd/include
+ ZSTD_LIB=$with_zstd/lib
+ ;;
+esac
+if test "x$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 $ZSTD_LDFLAGS"
+
+AC_MSG_CHECKING(for zstd.h)
+AC_CACHE_VAL(gcc_cv_header_zstd_h,
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[#include <zstd.h>]])],
+ [gcc_cv_header_zstd_h=yes],
+ [gcc_cv_header_zstd_h=no])])
+AC_MSG_RESULT($gcc_cv_header_zstd_h)
+if test $gcc_cv_header_zstd_h = yes; then
+ AC_DEFINE(HAVE_ZSTD_H, 1,
+ [Define if you have a working <zstd.h> header file.])
+fi
+
+# LTO can use zstd compression algorithm
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(ZSTD_compress, zstd)
+ZSTD_LIB="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(ZSTD_LIB)
+
dnl Disabled until we have a complete test for buggy enum bitfields.
dnl gcc_AC_C_ENUM_BF_UNSIGNED
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \
popen sysconf strsignal getrusage nl_langinfo \
gettimeofday mbstowcs wcswidth mmap setlocale \
- gcc_UNLOCKED_FUNCS madvise)
+ gcc_UNLOCKED_FUNCS madvise mallinfo)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
#endif
])
+gcc_AC_CHECK_DECLS(mallinfo, , ,[
+#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"
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.
if test -f configargs.h ; then
# Being re-configured.
gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
- gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
+ gcc_reconf_arguments=`echo "$gcc_config_arguments" | sed -e 's/^.*\( : (reconfigured) .*$\)/\1/'`
+ if [ "$gcc_reconf_arguments" != " : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" ]; then
+ gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
+ fi
else
gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
fi
$(test x"$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 $xm_file; do
AC_MSG_RESULT($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($gcc_cv_otool)
+fi
+
# Figure out what assembler alignment features are present.
gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
[2,6,0],,
#
# ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
#
- # In Solaris 11.4, this was changed to
- #
- # ld: Solaris ELF Utilities: 11.4-1.3123
- #
# ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version
# numbers can be used in ld.so.1 feature checks even if a different
# linker is configured.
ld_ver=`$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
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
.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
[Define if your assembler mis-optimizes .eh_frame data.])
fi
+# 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],
+ [.section foo1,"e"
+ .byte 0,0,0,0])
+if test $gcc_cv_as_section_exclude_e = no; then
+ case "${target}" in
+ # Solaris as uses #exclude instead.
+ *-*-solaris2*)
+ case "${target}" in
+ sparc*-*-solaris2*)
+ conftest_s='.section "foo1", #exclude'
+ ;;
+ i?86-*-solaris2* | x86_64-*-solaris2*)
+ conftest_s='.section foo1, #exclude'
+ ;;
+ esac
+ ;;
+ esac
+ gcc_GAS_CHECK_FEATURE([section exclude flag], gcc_cv_as_section_exclude_hash,,,
+ [$conftest_s
+ .byte 0,0,0,0])
+fi
+AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE,
+ [`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.])
+
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
;;
*)
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
gcc_cv_ld_soname=yes
ld_soname_option='-install_name'
;;
+ # Solaris 2 ld always supports -h. It also supports --soname for GNU
+ # ld compatiblity since some Solaris 10 update.
+ *-*-solaris2*)
+ gcc_cv_ld_soname=yes
+ ld_soname_option='-h'
+ ;;
esac
fi
# Don't AC_DEFINE result, only used in jit/Make-lang.in so far.
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,
[AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1,
[Define if your assembler supports -xbrace_comment option.])])
- # Test if the assembler supports the section flag 'e' for specifying
- # an excluded section.
- gcc_GAS_CHECK_FEATURE([.section with e], gcc_cv_as_section_has_e,
- [2,22,51], [--fatal-warnings],
-[.section foo1,"e"
-.byte 0,0,0,0])
- AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_EXCLUDE,
- [`if test $gcc_cv_as_section_has_e = yes; then echo 1; else echo 0; fi`],
- [Define if your assembler supports specifying the section flag e.])
-
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
gcc_cv_as_ix86_filds,,,
[filds (%ebp); fists (%ebp)],,
[ .text
addl r15 = @ltoffx(x#), gp
;;
- ld8.mov r16 = [[r15]], x#],,
+ ld8.mov r16 = [[r15]], x#
+],,
[AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
[Define if your assembler supports ltoffx and ldxmov relocations.])])
[ .machine ppc7400])
if test x$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 $target in
*-*-aix*)
gcc_GAS_CHECK_FEATURE([AIX .ref support],
[Requesting --with-nan= requires assembler support for -mnan=])
fi
;;
+ msp430-*-*)
+ # Earlier GAS versions generically support .gnu_attribute, but the
+ # msp430 assembler will not do anything with it.
+ gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
+ gcc_cv_as_msp430_gnu_attribute, [2,33,50],,
+ [.gnu_attribute 4,1],,
+ [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
+ [Define if your assembler supports .gnu_attribute.])])
+ gcc_GAS_CHECK_FEATURE([.mspabi_attribute support],
+ gcc_cv_as_msp430_mspabi_attribute, [2,33,50],,
+ [.mspabi_attribute 4,1],,
+ [AC_DEFINE(HAVE_AS_MSPABI_ATTRIBUTE, 1,
+ [Define if your assembler supports .mspabi_attribute.])])
+ if test x$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
+ ;;
+ 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.])])
+ ;;
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.])])
+
;;
esac
# ??? Once 2.11 is released, probably need to add first known working
# version to the per-target configury.
case "$cpu_type" in
- aarch64 | alpha | arc | arm | avr | bfin | cris | i386 | m32c | m68k \
- | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \
+ aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \
+ | 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 \
+ && $gcc_cv_otool -l conftest.o 2> /dev/null \
+ | grep debug_line > /dev/null 2>&1; then
+ gcc_cv_as_dwarf2_debug_line=yes
fi])
# The .debug_line file table must be in the exact order that
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_as_needed=yes
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 28; then
+ gcc_cv_ld_as_needed_option='--push-state --as-needed'
+ gcc_cv_ld_no_as_needed_option='--pop-state'
+ fi
fi
elif test x$gcc_cv_ld != x; then
# Check if linker supports --as-needed and --no-as-needed options
if $gcc_cv_ld --help 2>&1 | grep as-needed > /dev/null; then
gcc_cv_ld_as_needed=yes
+ if $gcc_cv_ld --help 2>&1 | grep push-state > /dev/null \
+ && $gcc_cv_ld --help 2>&1 | grep pop-state > /dev/null \
+ && echo "$ld_ver" | grep GNU > /dev/null \
+ && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 28; then
+ # Use these options only when both ld.bfd and ld.gold support
+ # --push-state/--pop-state, which unfortunately wasn't added
+ # at the same time.
+ gcc_cv_ld_as_needed_option='--push-state --as-needed'
+ gcc_cv_ld_no_as_needed_option='--pop-state'
+ fi
fi
case "$target:$gnu_ld" in
*-*-solaris2*:no)
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="$saved_LDFLAGS"
AC_ARG_WITH(long-double-128,
[AS_HELP_STRING([--with-long-double-128],
[use 128-bit long double by default])],
- gcc_cv_target_ldbl128="$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
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 $target_header_dir/link.h > /dev/null 2>&1 \
all_languages=
all_compilers=
all_outputs='Makefile'
-# List of language makefile fragments.
+# List of language configure and makefile fragments.
+all_lang_configurefrags=
all_lang_makefrags=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
esac
$ok || continue
+ all_lang_configurefrags="$all_lang_configurefrags \$(srcdir)/$gcc_subdir/config-lang.in"
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
if test -f $srcdir/$gcc_subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
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.
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(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)
# 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"`
+echo "gcc_driver_version: ${gcc_driver_version}"
cat > gcc-driver-name.h <<EOF
-#define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_BASEVER}${exeext}"
+#define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_driver_version}${exeext}"
EOF
# Check whether --enable-default-pie was given.
[gcc_cv_c_no_fpie],
[saved_CXXFLAGS="$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"])
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