4a7a8e11a3
libgo:
Backport from mainline
With the change in the Solaris release model (no more major releases
like Solaris 12 but only minor ones like 11.4), the Solaris 12
references in GCC need to be adapted.
Patch by Rainer Orth.
Reviewed-on: https://go-review.googlesource.com/77490
libgcc:
Backport from mainline
2017-11-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config.host (*-*-solaris2*): Adapt comment for Solaris 12
renaming.
* config/sol2/crtpg.c (__start_crt_compiler): Likewise.
* configure.ac (libgcc_cv_solaris_crts): Likewise.
* configure: Regenerate.
gcc:
Backport from mainline
2017-11-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
Solaris 11. Update comment.
* configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
renaming.
* config/sol2.h (STARTFILE_SPEC): Likewise.
* configure: Regenerate.
gcc/testsuite:
Backport from mainline
2017-11-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* lib/target-supports.exp (check_effective_target_pie): Adapt
comment for Solaris 12 renaming.
* gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if.
From-SVN: r254994
993 lines
29 KiB
Plaintext
993 lines
29 KiB
Plaintext
# configure.ac -- Go library configure script.
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# Process this file with autoreconf to produce configure.
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AC_PREREQ(2.64)
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AC_INIT(package-unused, version-unused,, libgo)
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AC_CONFIG_SRCDIR(Makefile.am)
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AC_CONFIG_HEADER(config.h)
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libtool_VERSION=11:0:0
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AC_SUBST(libtool_VERSION)
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AM_ENABLE_MULTILIB(, ..)
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AC_CANONICAL_SYSTEM
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target_alias=${target_alias-$host_alias}
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AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist -Wall -Wno-portability])
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AH_TEMPLATE(PACKAGE, [Name of package])
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AH_TEMPLATE(VERSION, [Version number of package])
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m4_rename([_AC_ARG_VAR_PRECIOUS],[glibgo_PRECIOUS])
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m4_define([_AC_ARG_VAR_PRECIOUS],[])
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AC_PROG_CC
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AC_PROG_GO
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m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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AC_SUBST(CFLAGS)
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AM_MAINTAINER_MODE
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AC_PROG_LD
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AC_PROG_RANLIB
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AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy)
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AC_LIBTOOL_DLOPEN
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AM_PROG_LIBTOOL
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AC_SUBST(enable_shared)
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AC_SUBST(enable_static)
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CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
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AC_SUBST(CC_FOR_BUILD)
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AC_PROG_AWK
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WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
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AC_SUBST(WARN_FLAGS)
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AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror],
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[turns on -Werror @<:@default=yes@:>@])])
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if test "x$enable_werror" != "xno"; then
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WERROR="-Werror"
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fi
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AC_SUBST(WERROR)
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glibgo_toolexecdir=no
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glibgo_toolexeclibdir=no
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AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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AC_ARG_ENABLE([version-specific-runtime-libs],
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AC_HELP_STRING([--enable-version-specific-runtime-libs],
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[Specify that runtime libraries should be installed in a compiler-specific directory]),
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[case "$enableval" in
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yes) version_specific_libs=yes ;;
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no) version_specific_libs=no ;;
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*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
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esac],
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[version_specific_libs=no])
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AC_MSG_RESULT($version_specific_libs)
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# Version-specific runtime libs processing.
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if test $version_specific_libs = yes; then
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glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
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glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)'
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fi
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# Calculate glibgo_toolexecdir, glibgo_toolexeclibdir
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# Install a library built with a cross compiler in tooldir, not libdir.
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if test -n "$with_cross_host" &&
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test x"$with_cross_host" != x"no"; then
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nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}'
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nover_glibgo_toolexeclibdir='${toolexecdir}/lib'
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else
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nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
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nover_glibgo_toolexeclibdir='${libdir}'
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fi
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multi_os_directory=`$GOC -print-multi-os-directory`
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case $multi_os_directory in
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.) ;; # Avoid trailing /.
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*) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;;
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esac
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if test x"$glibgo_toolexecdir" = x"no"; then
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glibgo_toolexecdir="${nover_glibgo_toolexecdir}"
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glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}"
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fi
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AC_SUBST(glibgo_toolexecdir)
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AC_SUBST(glibgo_toolexeclibdir)
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AC_SUBST(nover_glibgo_toolexeclibdir)
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# See if the user wants to configure without libffi. Some
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# architectures don't support it. FIXME: We should set a default
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# based on the host.
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AC_ARG_WITH(libffi,
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AS_HELP_STRING([--without-libffi],
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[don't use libffi]),
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[:],
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[with_libffi=${with_libffi_default-yes}])
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LIBFFI=
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LIBFFIINCS=
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if test "$with_libffi" != no; then
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AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.])
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LIBFFI=../libffi/libffi_convenience.la
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LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include'
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fi
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AC_SUBST(LIBFFI)
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AC_SUBST(LIBFFIINCS)
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AM_CONDITIONAL(USE_LIBFFI, test "$with_liffi" != "no")
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# See if the user wants to configure without libatomic. This is useful if we are
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# on an architecture for which libgo does not need an atomic support library and
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# libatomic does not support our C compiler.
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AC_ARG_WITH(libatomic,
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AS_HELP_STRING([--without-libatomic],
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[don't use libatomic]),
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[:],
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[with_libatomic=${with_libatomic_default-yes}])
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LIBATOMIC=
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if test "$with_libatomic" != no; then
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LIBATOMIC=../libatomic/libatomic_convenience.la
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fi
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AC_SUBST(LIBATOMIC)
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# Used to tell GNU make to include a file without telling automake to
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# include it.
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go_include="-include"
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AC_SUBST(go_include)
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# All known GOOS values. This is the union of all operating systems
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# supported by the gofrontend and all operating systems supported by
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# the gc toolchain.
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ALLGOOS="android darwin dragonfly freebsd irix linux netbsd openbsd plan9 rtems solaris windows"
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is_darwin=no
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is_freebsd=no
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is_irix=no
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is_linux=no
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is_netbsd=no
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is_openbsd=no
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is_dragonfly=no
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is_rtems=no
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is_solaris=no
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GOOS=unknown
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case ${host} in
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*-*-darwin*) is_darwin=yes; GOOS=darwin ;;
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*-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;;
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*-*-irix6*) is_irix=yes; GOOS=irix ;;
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*-*-linux*) is_linux=yes; GOOS=linux ;;
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*-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;;
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*-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;;
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*-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;;
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*-*-rtems*) is_rtems=yes; GOOS=rtems ;;
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*-*-solaris2*) is_solaris=yes; GOOS=solaris ;;
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esac
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AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes)
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AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes)
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AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes)
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AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes)
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AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes)
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AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes)
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AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes)
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AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes)
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AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes)
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AM_CONDITIONAL(LIBGO_IS_BSD, test $is_darwin = yes -o $is_dragonfly = yes -o $is_freebsd = yes -o $is_netbsd = yes -o $is_openbsd = yes)
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AC_SUBST(GOOS)
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AC_SUBST(ALLGOOS)
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dnl Test whether we need to use DejaGNU or whether we can use the
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dnl simpler gotest approach. We can only use gotest for a native
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dnl build.
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USE_DEJAGNU=no
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case ${host} in
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*-*-rtems*) USE_DEJAGNU=yes ;;
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${build}) ;;
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*) USE_DEJAGNU=yes ;;
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esac
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AC_SUBST(USE_DEJAGNU)
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# All known GOARCH values. This is the union of all architectures
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# supported by the gofrontend and all architectures supported by the
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# gc toolchain.
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# N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch).
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ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mips mipsle mips64 mips64le mips64p32 mips64p32le ppc ppc64 ppc64le s390 s390x sparc sparc64"
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# All known GOARCH_FAMILY values.
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ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 PPC PPC64 S390 S390X SPARC SPARC64"
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GOARCH=unknown
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GOARCH_FAMILY=unknown
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GOARCH_BIGENDIAN=0
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GOARCH_CACHELINESIZE=64
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GOARCH_PHYSPAGESIZE=4096
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GOARCH_PCQUANTUM=1
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GOARCH_INT64ALIGN=8
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GOARCH_HUGEPAGESIZE=0
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GOARCH_MINFRAMESIZE=0
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case ${host} in
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alpha*-*-*)
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GOARCH=alpha
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GOARCH_FAMILY=ALPHA
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GOARCH_PHYSPAGESIZE=8192
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GOARCH_PCQUANTUM=4
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;;
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aarch64-*-*)
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GOARCH=arm64
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GOARCH_FAMILY=ARM64
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GOARCH_CACHELINESIZE=32
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GOARCH_PHYSPAGESIZE=65536
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GOARCH_PCQUANTUM=4
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GOARCH_MINFRAMESIZE=8
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;;
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arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*)
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GOARCH=arm
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GOARCH_FAMILY=ARM
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GOARCH_CACHELINESIZE=32
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GOARCH_PCQUANTUM=4
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GOARCH_MINFRAMESIZE=4
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;;
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changequote(,)dnl
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i[34567]86-*-* | x86_64-*-*)
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changequote([,])dnl
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AC_COMPILE_IFELSE([
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#ifdef __x86_64__
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#error 64-bit
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#endif],
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[GOARCH=386
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GOARCH_FAMILY=I386
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GOARCH_INT64ALIGN=4
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GOARCH_HUGEPAGESIZE="1 << 21"
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],
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[GOARCH=amd64
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GOARCH_FAMILY=AMD64
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GOARCH_HUGEPAGESIZE="1 << 21"
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])
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;;
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ia64-*-*)
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GOARCH=ia64
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GOARCH_FAMILY=IA64
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GOARCH_CACHELINESIZE=16384
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GOARCH_PHYSPAGESIZE=65536
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;;
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m68k*-*-*)
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GOARCH=m68k
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GOARCH_FAMILY=M68K
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GOARCH_BIGENDIAN=1
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GOARCH_CACHELINESIZE=16
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GOARCH_PCQUANTUM=4
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GOARCH_INT64ALIGN=2
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;;
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mips*-*-*)
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AC_COMPILE_IFELSE([
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#if _MIPS_SIM != _ABIO32
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#error not o32
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#endif],
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[mips_abi="o32"],
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[AC_COMPILE_IFELSE([
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#if _MIPS_SIM != _ABIN32
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#error not n32
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#endif],
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[mips_abi="n32"],
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[AC_COMPILE_IFELSE([
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#if _MIPS_SIM != _ABI64
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#error not n64
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#endif],
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[mips_abi="n64"],
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[AC_MSG_ERROR([unknown MIPS ABI])
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[mips_abi="n32"]])])])
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case "$mips_abi" in
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"o32") GOARCH=mips ;;
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"n32") GOARCH=mips64p32 ;;
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"n64") GOARCH=mips64 ;;
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esac
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case "$mips_abi" in
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"o32" | "n32")
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GOARCH_FAMILY=MIPS
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GOARCH_MINFRAMESIZE=4
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;;
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"n64")
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GOARCH_FAMILY=MIPS64
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GOARCH_MINFRAMESIZE=8
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;;
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esac
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case "${host}" in
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mips*el-*-*)
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GOARCH="${GOARCH}le"
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;;
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*)
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GOARCH_BIGENDIAN=1
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;;
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esac
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GOARCH_CACHELINESIZE=32
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GOARCH_PHYSPAGESIZE=16384
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GOARCH_PCQUANTUM=4
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;;
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rs6000*-*-* | powerpc*-*-*)
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AC_COMPILE_IFELSE([
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#ifdef _ARCH_PPC64
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#error 64-bit
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#endif],
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[GOARCH=ppc
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GOARCH_FAMILY=PPC
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GOARCH_BIGENDIAN=1
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],
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[
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GOARCH_FAMILY=PPC64
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AC_COMPILE_IFELSE([
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#if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
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#error 64be
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#endif],
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[GOARCH=ppc64le
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],
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[GOARCH=ppc64
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GOARCH_BIGENDIAN=1
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])])
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GOARCH_PHYSPAGESIZE=65536
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GOARCH_PCQUANTUM=4
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GOARCH_MINFRAMESIZE=32
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;;
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s390*-*-*)
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AC_COMPILE_IFELSE([
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#if defined(__s390x__)
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#error 64-bit
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#endif],
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[GOARCH=s390
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GOARCH_FAMILY=S390
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GOARCH_MINFRAMESIZE=4
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], [GOARCH=s390x
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GOARCH_FAMILY=S390X
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GOARCH_MINFRAMESIZE=8
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])
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GOARCH_BIGENDIAN=1
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GOARCH_CACHELINESIZE=256
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GOARCH_PCQUANTUM=2
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;;
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sparc*-*-*)
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AC_COMPILE_IFELSE([
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#if defined(__sparcv9) || defined(__arch64__)
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#error 64-bit
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#endif],
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[GOARCH=sparc
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GOARCH_FAMILY=SPARC
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],
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[GOARCH=sparc64
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GOARCH_FAMILY=SPARC64
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])
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GOARCH_BIGENDIAN=1
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GOARCH_PHYSPAGESIZE=8192
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GOARCH_PCQUANTUM=4
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;;
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esac
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AC_SUBST(GOARCH)
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AC_SUBST(GOARCH_FAMILY)
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AC_SUBST(GOARCH_BIGENDIAN)
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AC_SUBST(GOARCH_CACHELINESIZE)
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AC_SUBST(GOARCH_PHYSPAGESIZE)
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AC_SUBST(GOARCH_PCQUANTUM)
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AC_SUBST(GOARCH_INT64ALIGN)
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AC_SUBST(GOARCH_HUGEPAGESIZE)
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AC_SUBST(GOARCH_MINFRAMESIZE)
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AC_SUBST(ALLGOARCH)
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AC_SUBST(ALLGOARCHFAMILY)
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dnl Some files are only present when needed for specific architectures.
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GO_LIBCALL_OS_FILE=
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GO_LIBCALL_OS_ARCH_FILE=
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GO_SYSCALL_OS_FILE=
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GO_SYSCALL_OS_ARCH_FILE=
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if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then
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GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go"
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fi
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if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then
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GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go"
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fi
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if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then
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GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go"
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fi
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if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then
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GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go"
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fi
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AC_SUBST(GO_LIBCALL_OS_FILE)
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AC_SUBST(GO_LIBCALL_OS_ARCH_FILE)
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AC_SUBST(GO_SYSCALL_OS_FILE)
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AC_SUBST(GO_SYSCALL_OS_ARCH_FILE)
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dnl Special flags used to generate sysinfo.go.
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OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
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case "$target" in
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mips-sgi-irix6.5*)
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# IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct
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# msghdr in <sys/socket.h>.
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OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
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;;
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*-*-solaris2.1[[01]])
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# Solaris 10+ needs this so struct msghdr gets the msg_control
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# etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
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# above doesn't work with C99.
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OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__"
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;;
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esac
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AC_SUBST(OSCFLAGS)
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dnl Check if assembler supports disabling hardware capability support.
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GCC_CHECK_ASSEMBLER_HWCAP
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dnl Use -fsplit-stack when compiling C code if available.
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AC_CACHE_CHECK([whether -fsplit-stack is supported],
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[libgo_cv_c_split_stack_supported],
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|
[CFLAGS_hold=$CFLAGS
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CFLAGS="$CFLAGS -fsplit-stack"
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AC_COMPILE_IFELSE([[int i;]],
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[libgo_cv_c_split_stack_supported=yes],
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[libgo_cv_c_split_stack_supported=no])
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CFLAGS=$CFLAGS_hold])
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|
|
dnl Make sure the linker permits -fsplit-stack. Old versions of gold will
|
|
dnl reject split-stack code calling non-split-stack code on targets
|
|
dnl they don't support.
|
|
AC_CACHE_CHECK([whether linker supports split/non-split linked together],
|
|
[libgo_cv_c_linker_split_non_split],
|
|
[cat > conftest1.c << EOF
|
|
extern void f();
|
|
int main() { f(); return 0; }
|
|
EOF
|
|
cat > conftest2.c << EOF
|
|
void f() {}
|
|
EOF
|
|
$CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c >/dev/null 2>&1
|
|
$CC -c $CFLAGS $CPPFLAGS conftest2.c > /dev/null 2>&1
|
|
if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext > /dev/null 2>&1; then
|
|
libgo_cv_c_linker_split_non_split=yes
|
|
else
|
|
libgo_cv_c_linker_split_non_split=no
|
|
fi
|
|
rm -f conftest1.* conftest2.* conftest])
|
|
|
|
if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then
|
|
SPLIT_STACK=-fsplit-stack
|
|
AC_DEFINE(USING_SPLIT_STACK, 1,
|
|
[Define if the compiler supports -fsplit-stack])
|
|
else
|
|
SPLIT_STACK=
|
|
fi
|
|
AC_SUBST(SPLIT_STACK)
|
|
AM_CONDITIONAL(USING_SPLIT_STACK,
|
|
test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes)
|
|
|
|
dnl If the compiler supports split-stack but the linker does not, then
|
|
dnl we need to explicitly disable split-stack for Go.
|
|
if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = no; then
|
|
GO_SPLIT_STACK=-fno-split-stack
|
|
else
|
|
GO_SPLIT_STACK=
|
|
fi
|
|
AC_SUBST(GO_SPLIT_STACK)
|
|
|
|
dnl Check whether the linker does stack munging when calling from
|
|
dnl split-stack into non-split-stack code. We check this by looking
|
|
dnl at the --help output. FIXME: This is only half right: it's
|
|
dnl possible for the linker to support this for some targets but not
|
|
dnl others.
|
|
dnl This is slightly different from the above check, which is whether
|
|
dnl the linker permits the call at all.
|
|
AC_CACHE_CHECK([whether linker supports split stack],
|
|
[libgo_cv_c_linker_supports_split_stack],
|
|
[libgo_cv_c_linker_supports_split_stack=no
|
|
if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
|
|
libgo_cv_c_linker_supports_split_stack=yes
|
|
fi])
|
|
if test "$libgo_cv_c_linker_supports_split_stack" = yes; then
|
|
AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1,
|
|
[Define if the linker support split stack adjustments])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([whether compiler is llgo],
|
|
[libgo_cv_c_goc_is_llgo],
|
|
[libgo_cv_c_goc_is_llgo=no
|
|
if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then
|
|
libgo_cv_c_goc_is_llgo=yes
|
|
fi])
|
|
AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes)
|
|
|
|
dnl Test for the -lm library.
|
|
MATH_LIBS=
|
|
AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm)
|
|
AC_SUBST(MATH_LIBS)
|
|
|
|
dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac.
|
|
AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets,
|
|
[libgo_cv_lib_sockets=
|
|
libgo_check_both=no
|
|
AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes)
|
|
if test "$libgo_check_socket" = "yes"; then
|
|
unset ac_cv_func_connect
|
|
AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket",
|
|
libgo_check_both=yes)
|
|
fi
|
|
if test "$libgo_check_both" = "yes"; then
|
|
libgo_old_libs=$LIBS
|
|
LIBS="$LIBS -lsocket -lnsl"
|
|
unset ac_cv_func_accept
|
|
AC_CHECK_FUNC(accept,
|
|
[libgo_check_nsl=no
|
|
libgo_cv_lib_sockets="-lsocket -lnsl"])
|
|
unset ac_cv_func_accept
|
|
LIBS=$libgo_old_libs
|
|
fi
|
|
unset ac_cv_func_gethostbyname
|
|
libgo_old_libs="$LIBS"
|
|
AC_CHECK_FUNC(gethostbyname, ,
|
|
[AC_CHECK_LIB(nsl, main,
|
|
[libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])])
|
|
unset ac_cv_func_gethostbyname
|
|
AC_CHECK_FUNC(sendfile, ,
|
|
[AC_CHECK_LIB(sendfile, main,
|
|
[libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lsendfile"])])
|
|
LIBS=$libgo_old_libs
|
|
])
|
|
NET_LIBS="$libgo_cv_lib_sockets"
|
|
AC_SUBST(NET_LIBS)
|
|
|
|
dnl Test whether the compiler supports the -pthread option.
|
|
AC_CACHE_CHECK([whether -pthread is supported],
|
|
[libgo_cv_lib_pthread],
|
|
[CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -pthread"
|
|
AC_COMPILE_IFELSE([[int i;]],
|
|
[libgo_cv_lib_pthread=yes],
|
|
[libgo_cv_lib_pthread=no])
|
|
CFLAGS=$CFLAGS_hold])
|
|
PTHREAD_CFLAGS=
|
|
if test "$libgo_cv_lib_pthread" = yes; then
|
|
PTHREAD_CFLAGS=-pthread
|
|
fi
|
|
AC_SUBST(PTHREAD_CFLAGS)
|
|
|
|
dnl Test for the -lpthread library.
|
|
PTHREAD_LIBS=
|
|
AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread)
|
|
AC_SUBST(PTHREAD_LIBS)
|
|
|
|
dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime.
|
|
AC_SEARCH_LIBS([sched_yield], [rt])
|
|
AC_SEARCH_LIBS([nanosleep], [rt])
|
|
AC_SEARCH_LIBS([clock_gettime], [rt])
|
|
|
|
AC_C_BIGENDIAN
|
|
|
|
GCC_CHECK_UNWIND_GETIPINFO
|
|
|
|
AC_CHECK_HEADERS(port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/icmp6.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h)
|
|
|
|
AC_CHECK_HEADERS([linux/filter.h linux/if_addr.h linux/if_ether.h linux/if_tun.h linux/netlink.h linux/rtnetlink.h], [], [],
|
|
[#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
])
|
|
|
|
AC_CACHE_CHECK([whether <ustat.h> can be used],
|
|
[libgo_cv_c_ustat_h],
|
|
[CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE $OSCFLAGS"
|
|
AC_COMPILE_IFELSE(
|
|
[AC_LANG_SOURCE([
|
|
#include <sys/types.h>
|
|
#ifdef HAVE_LINUX_FILTER_H
|
|
#include <linux/filter.h>
|
|
#endif
|
|
#include <ustat.h>
|
|
])], [libgo_cv_c_ustat_h=yes], [libgo_cv_c_ustat_h=no])
|
|
CFLAGS=$CFLAGS_hold])
|
|
if test $libgo_cv_c_ustat_h = yes; then
|
|
AC_DEFINE(HAVE_USTAT_H, 1,
|
|
[Define to 1 if you have the <ustat.h> header file and it works.])
|
|
fi
|
|
|
|
AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes)
|
|
|
|
AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr)
|
|
AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes)
|
|
AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes)
|
|
|
|
AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice tee unlinkat unshare utimensat)
|
|
AC_TYPE_OFF_T
|
|
AC_CHECK_TYPES([loff_t])
|
|
|
|
LIBS_hold="$LIBS"
|
|
LIBS="$LIBS -lm"
|
|
AC_CHECK_FUNCS(cosl expl logl sinl tanl acosl asinl atanl atan2l expm1l ldexpl log10l log1pl)
|
|
LIBS="$LIBS_hold"
|
|
|
|
CFLAGS_hold="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
LIBS_hold="$LIBS"
|
|
LIBS="$LIBS $PTHREAD_LIBS"
|
|
AC_CHECK_FUNCS(sem_timedwait)
|
|
CFLAGS="$CFLAGS_hold"
|
|
LIBS="$LIBS_hold"
|
|
|
|
LIBS_hold="$LIBS"
|
|
LIBS="$LIBS $MATH_LIBS"
|
|
AC_CHECK_FUNCS(matherr)
|
|
LIBS="$LIBS_hold"
|
|
|
|
AC_CACHE_CHECK([for __sync_bool_compare_and_swap_4],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_4],
|
|
[AC_LINK_IFELSE([
|
|
typedef unsigned int uint32 __attribute__ ((mode (SI)));
|
|
uint32 i;
|
|
int main() { return __sync_bool_compare_and_swap (&i, 0, 1); }
|
|
],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_4=yes],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_4=no])])
|
|
if test "$libgo_cv_func___sync_bool_compare_and_swap_4" = "yes"; then
|
|
AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4, 1,
|
|
[Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint32])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([for __sync_bool_compare_and_swap_8],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_8],
|
|
[AC_LINK_IFELSE([
|
|
typedef unsigned int uint64 __attribute__ ((mode (DI)));
|
|
uint64 i;
|
|
int main() { return __sync_bool_compare_and_swap (&i, 0, 1); }
|
|
],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_8=yes],
|
|
[libgo_cv_func___sync_bool_compare_and_swap_8=no])])
|
|
if test "$libgo_cv_func___sync_bool_compare_and_swap_8" = "yes"; then
|
|
AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8, 1,
|
|
[Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint64])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([for __sync_fetch_and_add_4],
|
|
[libgo_cv_func___sync_fetch_and_add_4],
|
|
[AC_LINK_IFELSE([
|
|
typedef unsigned int uint32 __attribute__ ((mode (SI)));
|
|
uint32 i;
|
|
int main() { return __sync_fetch_and_add (&i, 1); }
|
|
],
|
|
[libgo_cv_func___sync_fetch_and_add_4=yes],
|
|
[libgo_cv_func___sync_fetch_and_add_4=no])])
|
|
if test "$libgo_cv_func___sync_fetch_and_add_4" = "yes"; then
|
|
AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD_4, 1,
|
|
[Define to 1 if the compiler provides the __sync_fetch_and_add function for uint32])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([for __sync_add_and_fetch_8],
|
|
[libgo_cv_func___sync_add_and_fetch_8],
|
|
[AC_LINK_IFELSE([
|
|
typedef unsigned int uint64 __attribute__ ((mode (DI)));
|
|
uint64 i;
|
|
int main() { return __sync_add_and_fetch (&i, 1); }
|
|
],
|
|
[libgo_cv_func___sync_add_and_fetch_8=yes],
|
|
[libgo_cv_func___sync_add_and_fetch_8=no])])
|
|
if test "$libgo_cv_func___sync_add_and_fetch_8" = "yes"; then
|
|
AC_DEFINE(HAVE_SYNC_ADD_AND_FETCH_8, 1,
|
|
[Define to 1 if the compiler provides the __sync_add_and_fetch function for uint64])
|
|
fi
|
|
|
|
dnl For x86 we want to use the -minline-all-stringops option to avoid
|
|
dnl forcing a stack split when calling memcpy and friends.
|
|
AC_CACHE_CHECK([whether compiler supports -minline-all-stringops],
|
|
[libgo_cv_c_stringops],
|
|
[CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -minline-all-stringops"
|
|
AC_COMPILE_IFELSE([int i;],
|
|
[libgo_cv_c_stringops=yes],
|
|
[libgo_cv_c_stringops=no])
|
|
CFLAGS=$CFLAGS_hold])
|
|
STRINGOPS_FLAG=
|
|
if test "$libgo_cv_c_stringops" = yes; then
|
|
STRINGOPS_FLAG=-minline-all-stringops
|
|
fi
|
|
AC_SUBST(STRINGOPS_FLAG)
|
|
|
|
dnl For x86 we want to compile the math library with -mfancy-math-387
|
|
dnl -funsafe-math-optimizations so that we can use the builtin
|
|
dnl instructions directly.
|
|
AC_CACHE_CHECK([whether compiler supports -mfancy-math-387],
|
|
[libgo_cv_c_fancymath],
|
|
[CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -mfancy-math-387"
|
|
AC_COMPILE_IFELSE([int i;],
|
|
[libgo_cv_c_fancymath=yes],
|
|
[libgo_cv_c_fancymath=no])
|
|
CFLAGS=$CFLAGS_hold])
|
|
MATH_FLAG=
|
|
if test "$libgo_cv_c_fancymath" = yes; then
|
|
MATH_FLAG="-mfancy-math-387 -funsafe-math-optimizations"
|
|
else
|
|
MATH_FLAG="-ffp-contract=off"
|
|
fi
|
|
AC_SUBST(MATH_FLAG)
|
|
|
|
CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
|
|
AC_CHECK_TYPES([off64_t])
|
|
CFLAGS=$CFLAGS_hold
|
|
|
|
dnl Work out the size of the epoll_events struct on GNU/Linux.
|
|
AC_CACHE_CHECK([epoll_event size],
|
|
[libgo_cv_c_epoll_event_size],
|
|
[AC_COMPUTE_INT(libgo_cv_c_epoll_event_size,
|
|
[sizeof (struct epoll_event)],
|
|
[#include <sys/epoll.h>],
|
|
[libgo_cv_c_epoll_event_size=0])])
|
|
SIZEOF_STRUCT_EPOLL_EVENT=${libgo_cv_c_epoll_event_size}
|
|
AC_SUBST(SIZEOF_STRUCT_EPOLL_EVENT)
|
|
|
|
dnl Work out the offset of the fd field in the epoll_events struct on
|
|
dnl GNU/Linux.
|
|
AC_CACHE_CHECK([epoll_event data.fd offset],
|
|
[libgo_cv_c_epoll_event_fd_offset],
|
|
[AC_COMPUTE_INT(libgo_cv_c_epoll_event_fd_offset,
|
|
[offsetof (struct epoll_event, data.fd)],
|
|
[#include <stddef.h>
|
|
#include <sys/epoll.h>],
|
|
[libgo_cv_c_epoll_event_fd_offset=0])])
|
|
STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_c_epoll_event_fd_offset}
|
|
AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET)
|
|
|
|
dnl Check if <sys/stat.h> uses timespec_t for st_?tim members. Introduced
|
|
dnl in Solaris 11.4 for XPG7 compatibility.
|
|
AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h],
|
|
[have_stat_timespec=yes], [have_stat_timespec=no])
|
|
AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes)
|
|
|
|
dnl See if struct exception is defined in <math.h>.
|
|
AC_CHECK_TYPE([struct exception],
|
|
[libgo_has_struct_exception=yes],
|
|
[libgo_has_struct_exception=no],
|
|
[#include <math.h>])
|
|
if test "$libgo_has_struct_exception" = "yes"; then
|
|
AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1,
|
|
[Define to 1 if <math.h> defines struct exception])
|
|
fi
|
|
|
|
dnl See whether setcontext changes the value of TLS variables.
|
|
AC_CACHE_CHECK([whether setcontext clobbers TLS variables],
|
|
[libgo_cv_lib_setcontext_clobbers_tls],
|
|
[CFLAGS_hold="$CFLAGS"
|
|
CFLAGS="$PTHREAD_CFLAGS"
|
|
LIBS_hold="$LIBS"
|
|
LIBS="$LIBS $PTHREAD_LIBS"
|
|
AC_CHECK_SIZEOF([void *])
|
|
AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8])
|
|
AC_RUN_IFELSE(
|
|
[AC_LANG_SOURCE([
|
|
#include <pthread.h>
|
|
#include <stdlib.h>
|
|
#include <ucontext.h>
|
|
#include <unistd.h>
|
|
|
|
__thread int tls;
|
|
|
|
static char stack[[10 * 1024 * 1024]];
|
|
static ucontext_t c;
|
|
|
|
/* Called via makecontext/setcontext. */
|
|
|
|
static void
|
|
cfn (void)
|
|
{
|
|
exit (tls);
|
|
}
|
|
|
|
/* Called via pthread_create. */
|
|
|
|
static void *
|
|
tfn (void *dummy)
|
|
{
|
|
/* The thread should still see this value after calling
|
|
setcontext. */
|
|
tls = 0;
|
|
|
|
setcontext (&c);
|
|
|
|
/* The call to setcontext should not return. */
|
|
abort ();
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
pthread_t tid;
|
|
|
|
/* The thread should not see this value. */
|
|
tls = 1;
|
|
|
|
if (getcontext (&c) < 0)
|
|
abort ();
|
|
|
|
c.uc_stack.ss_sp = stack;
|
|
#ifdef MAKECONTEXT_STACK_TOP
|
|
c.uc_stack.ss_sp += sizeof stack;
|
|
#endif
|
|
c.uc_stack.ss_flags = 0;
|
|
c.uc_stack.ss_size = sizeof stack;
|
|
c.uc_link = NULL;
|
|
makecontext (&c, cfn, 0);
|
|
|
|
if (pthread_create (&tid, NULL, tfn, NULL) != 0)
|
|
abort ();
|
|
|
|
if (pthread_join (tid, NULL) != 0)
|
|
abort ();
|
|
|
|
/* The thread should have called exit. */
|
|
abort ();
|
|
}
|
|
])],
|
|
[libgo_cv_lib_setcontext_clobbers_tls=no],
|
|
[libgo_cv_lib_setcontext_clobbers_tls=yes],
|
|
[case "$target:$ptr_type_size" in
|
|
i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64)
|
|
libgo_cv_lib_setcontext_clobbers_tls=yes ;;
|
|
*)
|
|
libgo_cv_lib_setcontext_clobbers_tls=no ;;
|
|
esac
|
|
])
|
|
CFLAGS="$CFLAGS_hold"
|
|
LIBS="$LIBS_hold"
|
|
])
|
|
if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then
|
|
AC_DEFINE(SETCONTEXT_CLOBBERS_TLS, 1,
|
|
[Define if setcontext clobbers TLS variables])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([whether .eh_frame section should be read-only],
|
|
libgo_cv_ro_eh_frame, [
|
|
libgo_cv_ro_eh_frame=no
|
|
echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
|
|
if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
|
|
if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
|
|
libgo_cv_ro_eh_frame=yes
|
|
elif grep '.section.*eh_frame.*#alloc' conftest.c \
|
|
| grep -v '#write' > /dev/null; then
|
|
libgo_cv_ro_eh_frame=yes
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
])
|
|
if test "x$libgo_cv_ro_eh_frame" = xyes; then
|
|
AC_DEFINE(EH_FRAME_FLAGS, "a",
|
|
[Define to the flags needed for the .section .eh_frame directive.])
|
|
else
|
|
AC_DEFINE(EH_FRAME_FLAGS, "aw",
|
|
[Define to the flags needed for the .section .eh_frame directive.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([if compiler supports -Qunused-arguments],
|
|
[libgo_cv_c_unused_arguments],
|
|
[CFLAGS_hold=$CFLAGS
|
|
CFLAGS="$CFLAGS -Qunused-arguments"
|
|
AC_COMPILE_IFELSE([[int i;]],
|
|
[libgo_cv_c_unused_arguments=yes],
|
|
[libgo_cv_c_unused_arguments=no])
|
|
CFLAGS=$CFLAGS_hold])
|
|
|
|
AC_CACHE_CHECK([if assembler supports GNU comdat group syntax],
|
|
libgo_cv_as_comdat_gnu, [
|
|
echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s
|
|
CFLAGS_hold=$CFLAGS
|
|
if test "$libgo_cv_c_unused_arguments" = yes; then
|
|
CFLAGS="$CFLAGS -Qunused-arguments"
|
|
fi
|
|
if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then
|
|
libgo_cv_as_comdat_gnu=yes
|
|
else
|
|
libgo_cv_as_comdat_gnu=no
|
|
fi
|
|
CFLAGS=$CFLAGS_hold
|
|
])
|
|
if test "x$libgo_cv_as_comdat_gnu" = xyes; then
|
|
AC_DEFINE(HAVE_AS_COMDAT_GAS, 1,
|
|
[Define if your assembler supports GNU comdat group syntax.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler supports pc related relocs],
|
|
libgo_cv_as_x86_pcrel, [
|
|
libgo_cv_as_x86_pcrel=yes
|
|
echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
|
|
CFLAGS_hold=$CFLAGS
|
|
if test "$libgo_cv_c_unused_arguments" = yes; then
|
|
CFLAGS="$CFLAGS -Qunused-arguments"
|
|
fi
|
|
if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then
|
|
libgo_cv_as_x86_pcrel=no
|
|
fi
|
|
CFLAGS=$CFLAGS_hold
|
|
])
|
|
if test "x$libgo_cv_as_x86_pcrel" = xyes; then
|
|
AC_DEFINE(HAVE_AS_X86_PCREL, 1,
|
|
[Define if your assembler supports PC relative relocs.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler supports unwind section type],
|
|
libgo_cv_as_x86_64_unwind_section_type, [
|
|
libgo_cv_as_x86_64_unwind_section_type=yes
|
|
echo '.section .eh_frame,"a",@unwind' > conftest.s
|
|
CFLAGS_hold=$CFLAGS
|
|
if test "$libgo_cv_c_unused_arguments" = yes; then
|
|
CFLAGS="$CFLAGS -Qunused-arguments"
|
|
fi
|
|
if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
|
|
libgo_cv_as_x86_64_unwind_section_type=no
|
|
fi
|
|
CFLAGS=$CFLAGS_hold
|
|
])
|
|
if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then
|
|
AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
|
|
[Define if your assembler supports unwind section type.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler supports AES instructions],
|
|
libgo_cv_as_x86_aes, [
|
|
libgo_cv_as_x86_aes=yes
|
|
echo 'aesenc %xmm0, %xmm1' > conftest.s
|
|
CFLAGS_hold=$CFLAGS
|
|
if test "$libgo_cv_c_unused_arguments" = yes; then
|
|
CFLAGS="$CFLAGS -Qunused-arguments"
|
|
fi
|
|
if $CC $CFLAGS -c conftest.s 2>&1 | grep -i error > /dev/null; then
|
|
libgo_cv_as_x86_aes=no
|
|
fi
|
|
CFLAGS=$CFLAGS_hold
|
|
])
|
|
if test "x$libgo_cv_as_x86_aes" = xyes; then
|
|
AC_DEFINE(HAVE_AS_X86_AES, 1,
|
|
[Define if your assembler supports AES instructions.])
|
|
fi
|
|
|
|
AC_CACHE_SAVE
|
|
|
|
if test ${multilib} = yes; then
|
|
multilib_arg="--enable-multilib"
|
|
else
|
|
multilib_arg=
|
|
fi
|
|
|
|
AC_CONFIG_FILES(Makefile testsuite/Makefile)
|
|
|
|
AC_CONFIG_COMMANDS([default],
|
|
[if test -n "$CONFIG_FILES"; then
|
|
# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
|
|
# that multilib installs will end up installed in the correct place.
|
|
# The testsuite needs it for multilib-aware ABI baseline files.
|
|
# To work around this not being passed down from config-ml.in ->
|
|
# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
|
|
# append it here. Only modify Makefiles that have just been created.
|
|
#
|
|
# Also, get rid of this simulated-VPATH thing that automake does.
|
|
cat > vpsed << \_EOF
|
|
s!`test -f '$<' || echo '$(srcdir)/'`!!
|
|
_EOF
|
|
for i in $SUBDIRS; do
|
|
case $CONFIG_FILES in
|
|
*${i}/Makefile*)
|
|
#echo "Adding MULTISUBDIR to $i/Makefile"
|
|
sed -f vpsed $i/Makefile > tmp
|
|
grep '^MULTISUBDIR =' Makefile >> tmp
|
|
mv tmp $i/Makefile
|
|
;;
|
|
esac
|
|
done
|
|
rm vpsed
|
|
fi
|
|
],
|
|
[
|
|
# Variables needed in config.status (file generation) which aren't already
|
|
# passed by autoconf.
|
|
SUBDIRS="$SUBDIRS"
|
|
])
|
|
|
|
AC_OUTPUT
|