AC_CONFIG_SRCDIR(Makefile.am)
AC_CONFIG_HEADER(config.h)
-libtool_VERSION=1:0:0
+libtool_VERSION=10:0:0
AC_SUBST(libtool_VERSION)
AM_ENABLE_MULTILIB(, ..)
AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}
-AM_INIT_AUTOMAKE([1.9.3 no-define foreign -Wall])
+AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist -Wall -Wno-portability])
AH_TEMPLATE(PACKAGE, [Name of package])
AH_TEMPLATE(VERSION, [Version number of package])
WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
-dnl FIXME: This should be controlled by --enable-maintainer-mode.
-WERROR="-Werror"
+AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror],
+ [turns on -Werror @<:@default=yes@:>@])])
+if test "x$enable_werror" != "xno"; then
+ WERROR="-Werror"
+fi
AC_SUBST(WERROR)
glibgo_toolexecdir=no
glibgo_toolexeclibdir=no
-glibgo_prefixdir=$prefix
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE([version-specific-runtime-libs],
# Calculate glibgo_toolexecdir, glibgo_toolexeclibdir
# Install a library built with a cross compiler in tooldir, not libdir.
+if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}'
+ nover_glibgo_toolexeclibdir='${toolexecdir}/lib'
+else
+ nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
+ nover_glibgo_toolexeclibdir='${libdir}'
+fi
+multi_os_directory=`$GOC -print-multi-os-directory`
+case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;;
+esac
+
if test x"$glibgo_toolexecdir" = x"no"; then
- if test -n "$with_cross_host" &&
- test x"$with_cross_host" != x"no"; then
- glibgo_toolexecdir='${exec_prefix}/${host_alias}'
- glibgo_toolexeclibdir='${toolexecdir}/lib'
- else
- glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
- glibgo_toolexeclibdir='${libdir}'
- fi
- multi_os_directory=`$CC -print-multi-os-directory`
- case $multi_os_directory in
- .) ;; # Avoid trailing /.
- *) glibgo_toolexeclibdir=$glibgo_toolexeclibdir/$multi_os_directory ;;
- esac
+ glibgo_toolexecdir="${nover_glibgo_toolexecdir}"
+ glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}"
fi
-AC_SUBST(glibgo_prefixdir)
AC_SUBST(glibgo_toolexecdir)
AC_SUBST(glibgo_toolexeclibdir)
+AC_SUBST(nover_glibgo_toolexeclibdir)
# See if the user wants to configure without libffi. Some
# architectures don't support it. FIXME: We should set a default
AC_SUBST(LIBFFI)
AC_SUBST(LIBFFIINCS)
+# See if the user wants to configure without libatomic. This is useful if we are
+# on an architecture for which libgo does not need an atomic support library and
+# libatomic does not support our C compiler.
+AC_ARG_WITH(libatomic,
+ AS_HELP_STRING([--without-libatomic],
+ [don't use libatomic]),
+ [:],
+ [with_libatomic=${with_libatomic_default-yes}])
+
+LIBATOMIC=
+if test "$with_libatomic" != no; then
+ LIBATOMIC=../libatomic/libatomic_convenience.la
+fi
+AC_SUBST(LIBATOMIC)
+
# Used to tell GNU make to include a file without telling automake to
# include it.
go_include="-include"
AC_SUBST(go_include)
+# All known GOOS values. This is the union of all operating systems
+# supported by the gofrontend and all operating systems supported by
+# the gc toolchain.
+ALLGOOS="android darwin dragonfly freebsd irix linux netbsd openbsd plan9 rtems solaris windows"
+
is_darwin=no
is_freebsd=no
is_irix=no
is_linux=no
+is_netbsd=no
+is_openbsd=no
+is_dragonfly=no
is_rtems=no
is_solaris=no
GOOS=unknown
*-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;;
*-*-irix6*) is_irix=yes; GOOS=irix ;;
*-*-linux*) is_linux=yes; GOOS=linux ;;
+ *-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;;
+ *-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;;
+ *-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;;
*-*-rtems*) is_rtems=yes; GOOS=rtems ;;
*-*-solaris2*) is_solaris=yes; GOOS=solaris ;;
esac
AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes)
AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes)
AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes)
+AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes)
+AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes)
+AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes)
AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes)
AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes)
+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)
AC_SUBST(GOOS)
+AC_SUBST(ALLGOOS)
+
+dnl Test whether we need to use DejaGNU or whether we can use the
+dnl simpler gotest approach. We can only use gotest for a native
+dnl build.
+USE_DEJAGNU=no
+case ${host} in
+ *-*-rtems*) USE_DEJAGNU=yes ;;
+ ${build}) ;;
+ *) USE_DEJAGNU=yes ;;
+esac
+AC_SUBST(USE_DEJAGNU)
+
+# All known GOARCH values. This is the union of all architectures
+# supported by the gofrontend and all architectures supported by the
+# gc toolchain.
+# N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch).
+ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mipso32 mipsn32 mipso64 mipsn64 mips mipsle mips64 mips64le mips64p32 mips64pe32le ppc ppc64 ppc64le s390 s390x sparc sparc64"
+
+# All known GOARCH_FAMILY values.
+ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 PPC PPC64 S390 S390X SPARC SPARC64"
-dnl N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch).
-is_386=no
-is_alpha=no
-is_arm=no
-is_m68k=no
-mips_abi=unknown
-is_ppc=no
-is_ppc64=no
-is_sparc=no
-is_sparc64=no
-is_x86_64=no
GOARCH=unknown
+GOARCH_FAMILY=unknown
+GOARCH_BIGENDIAN=0
+GOARCH_CACHELINESIZE=64
+GOARCH_PHYSPAGESIZE=4096
+GOARCH_PCQUANTUM=1
+GOARCH_INT64ALIGN=8
+GOARCH_HUGEPAGESIZE=0
+GOARCH_MINFRAMESIZE=0
case ${host} in
alpha*-*-*)
- is_alpha=yes
GOARCH=alpha
+ GOARCH_FAMILY=ALPHA
+ GOARCH_PHYSPAGESIZE=8192
+ GOARCH_PCQUANTUM=4
+ ;;
+ aarch64-*-*)
+ GOARCH=arm64
+ GOARCH_FAMILY=ARM64
+ GOARCH_CACHELINESIZE=32
+ GOARCH_PHYSPAGESIZE=65536
+ GOARCH_PCQUANTUM=4
+ GOARCH_MINFRAMESIZE=8
;;
arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*)
- is_arm=yes
GOARCH=arm
+ GOARCH_FAMILY=ARM
+ GOARCH_CACHELINESIZE=32
+ GOARCH_PCQUANTUM=4
+ GOARCH_INT64ALIGN=4
+ GOARCH_MINFRAMESIZE=4
;;
changequote(,)dnl
i[34567]86-*-* | x86_64-*-*)
#ifdef __x86_64__
#error 64-bit
#endif],
-[is_386=yes], [is_x86_64=yes])
- if test "$is_386" = "yes"; then
- GOARCH=386
- else
- GOARCH=amd64
- fi
+[GOARCH=386
+GOARCH_FAMILY=I386
+GOARCH_INT64ALIGN=4
+GOARCH_HUGEPAGESIZE="1 << 21"
+],
+[GOARCH=amd64
+GOARCH_FAMILY=AMD64
+GOARCH_HUGEPAGESIZE="1 << 21"
+])
+ ;;
+ ia64-*-*)
+ GOARCH=ia64
+ GOARCH_FAMILY=IA64
+ GOARCH_CACHELINESIZE=16384
+ GOARCH_PHYSPAGESIZE=8192
;;
m68k*-*-*)
- is_m68k=yes
GOARCH=m68k
+ GOARCH_FAMILY=M68K
+ GOARCH_BIGENDIAN=1
+ GOARCH_CACHELINESIZE=16
+ GOARCH_PCQUANTUM=4
+ GOARCH_INT64ALIGN=4
;;
mips*-*-*)
AC_COMPILE_IFELSE([
"n64") GOARCH=mipsn64 ;;
"o64") GOARCH=mipso64 ;;
esac
+ case "$mips_abi" in
+ "o32" | "n32")
+ GOARCH_FAMILY=MIPS
+ GOARCH_INT64ALIGN=4
+ GOARCH_MINFRAMESIZE=4
+ ;;
+ "n64" | "o64")
+ GOARCH_FAMILY=MIPS64
+ GOARCH_MINFRAMESIZE=8
+ ;;
+ esac
+ case "${host}" in
+ mips*el)
+ ;;
+ *)
+ GOARCH_BIGENDIAN=1
+ ;;
+ esac
+ GOARCH_CACHELINESIZE=32
+ GOARCH_PHYSPAGESIZE=16384
+ GOARCH_PCQUANTUM=4
;;
rs6000*-*-* | powerpc*-*-*)
AC_COMPILE_IFELSE([
#ifdef _ARCH_PPC64
#error 64-bit
#endif],
-[is_ppc=yes], [is_ppc64=yes])
- if test "$is_ppc" = "yes"; then
- GOARCH=ppc
- else
- GOARCH=ppc64
- fi
+[GOARCH=ppc
+GOARCH_FAMILY=PPC
+GOARCH_BIGENDIAN=1
+GOARCH_INT64ALIGN=4
+],
+ [
+GOARCH_FAMILY=PPC64
+AC_COMPILE_IFELSE([
+#if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
+#error 64be
+#endif],
+[GOARCH=ppc64le
+],
+[GOARCH=ppc64
+GOARCH_BIGENDIAN=1
+])])
+ GOARCH_PHYSPAGESIZE=65536
+ GOARCH_PCQUANTUM=4
+ GOARCH_MINFRAMESIZE=32
+ ;;
+ s390*-*-*)
+ AC_COMPILE_IFELSE([
+#if defined(__s390x__)
+#error 64-bit
+#endif],
+[GOARCH=s390
+GOARCH_FAMILY=S390
+GOARCH_INT64ALIGN=4
+GOARCH_MINFRAMESIZE=4
+], [GOARCH=s390x
+GOARCH_FAMILY=S390X
+GOARCH_MINFRAMESIZE=8
+])
+ GOARCH_BIGENDIAN=1
+ GOARCH_CACHELINESIZE=256
+ GOARCH_PCQUANTUM=2
;;
sparc*-*-*)
AC_COMPILE_IFELSE([
#if defined(__sparcv9) || defined(__arch64__)
#error 64-bit
#endif],
-[is_sparc=yes], [is_sparc64=yes])
- if test "$is_sparc" = "yes"; then
- GOARCH=sparc
- else
- GOARCH=sparc64
- fi
+[GOARCH=sparc
+GOARCH_FAMILY=SPARC
+GOARCH_INT64ALIGN=4
+],
+[GOARCH=sparc64
+GOARCH_FAMILY=SPARC64
+])
+ GOARCH_BIGENDIAN=1
+ GOARCH_PHYSPAGESIZE=8192
+ GOARCH_PCQUANTUM=4
;;
esac
-AM_CONDITIONAL(LIBGO_IS_386, test $is_386 = yes)
-AM_CONDITIONAL(LIBGO_IS_ALPHA, test $is_alpha = yes)
-AM_CONDITIONAL(LIBGO_IS_ARM, test $is_arm = yes)
-AM_CONDITIONAL(LIBGO_IS_M68K, test $is_m68k = yes)
-AM_CONDITIONAL(LIBGO_IS_MIPS, test $mips_abi != unknown)
-AM_CONDITIONAL(LIBGO_IS_MIPSO32, test $mips_abi = o32)
-AM_CONDITIONAL(LIBGO_IS_MIPSN32, test $mips_abi = n32)
-AM_CONDITIONAL(LIBGO_IS_MIPSN64, test $mips_abi = n64)
-AM_CONDITIONAL(LIBGO_IS_MIPSO64, test $mips_abi = o64)
-AM_CONDITIONAL(LIBGO_IS_PPC, test $is_ppc = yes)
-AM_CONDITIONAL(LIBGO_IS_PPC64, test $is_ppc64 = yes)
-AM_CONDITIONAL(LIBGO_IS_SPARC, test $is_sparc = yes)
-AM_CONDITIONAL(LIBGO_IS_SPARC64, test $is_sparc64 = yes)
-AM_CONDITIONAL(LIBGO_IS_X86_64, test $is_x86_64 = yes)
AC_SUBST(GOARCH)
+AC_SUBST(GOARCH_FAMILY)
+AC_SUBST(GOARCH_BIGENDIAN)
+AC_SUBST(GOARCH_CACHELINESIZE)
+AC_SUBST(GOARCH_PHYSPAGESIZE)
+AC_SUBST(GOARCH_PCQUANTUM)
+AC_SUBST(GOARCH_INT64ALIGN)
+AC_SUBST(GOARCH_HUGEPAGESIZE)
+AC_SUBST(GOARCH_MINFRAMESIZE)
+AC_SUBST(ALLGOARCH)
+AC_SUBST(ALLGOARCHFAMILY)
dnl Some files are only present when needed for specific architectures.
GO_LIBCALL_OS_FILE=
GO_LIBCALL_OS_ARCH_FILE=
GO_SYSCALL_OS_FILE=
GO_SYSCALL_OS_ARCH_FILE=
-if test -f ${srcdir}/go/syscall/libcall_${GOOS}.go; then
- GO_LIBCALL_OS_FILE=go/syscall/libcall_${GOOS}.go
+if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then
+ GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go"
fi
-if test -f ${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go; then
- GO_LIBCALL_OS_ARCH_FILE=go/syscall/libcall_${GOOS}_${GOARCH}.go
+if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then
+ GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go"
fi
-if test -f ${srcdir}/go/syscall/syscall_${GOOS}.go; then
- GO_SYSCALL_OS_FILE=go/syscall/syscall_${GOOS}.go
+if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then
+ GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go"
fi
-if test -f ${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go; then
- GO_SYSCALL_OS_ARCH_FILE=go/syscall/syscall_${GOOS}_${GOARCH}.go
+if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then
+ GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go"
fi
AC_SUBST(GO_LIBCALL_OS_FILE)
AC_SUBST(GO_LIBCALL_OS_ARCH_FILE)
AC_SUBST(GO_SYSCALL_OS_FILE)
AC_SUBST(GO_SYSCALL_OS_ARCH_FILE)
-dnl Some targets need special flags to build sysinfo.go.
+dnl Special flags used to generate sysinfo.go.
+OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
case "$target" in
mips-sgi-irix6.5*)
# IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct
# msghdr in <sys/socket.h>.
- OSCFLAGS='-D_XOPEN_SOURCE=500'
- ;;
- *-*-solaris2.[[89]])
- # Solaris 8/9 need this so struct msghdr gets the msg_control
- # etc. fields in <sys/socket.h> (_XPG4_2).
- OSCFLAGS='-D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__'
+ OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
*-*-solaris2.1[[01]])
# Solaris 10+ needs this so struct msghdr gets the msg_control
- # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=500 as
+ # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
# above doesn't work with C99.
- OSCFLAGS='-D_XOPEN_SOURCE=600 -D__EXTENSIONS__'
+ OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__"
;;
esac
AC_SUBST(OSCFLAGS)
[libgo_cv_c_split_stack_supported=yes],
[libgo_cv_c_split_stack_supported=no])
CFLAGS=$CFLAGS_hold])
-if test "$libgo_cv_c_split_stack_supported" = yes; then
+
+dnl Make sure the linker permits -fsplit-stack. Old versions of gold will
+dnl reject split-stack code calling non-split-stack code on targets
+dnl they don't support.
+AC_CACHE_CHECK([whether linker supports split/non-split linked together],
+[libgo_cv_c_linker_split_non_split],
+[cat > conftest1.c << EOF
+extern void f();
+int main() { f(); return 0; }
+EOF
+cat > conftest2.c << EOF
+void f() {}
+EOF
+$CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c
+$CC -c $CFLAGS $CPPFLAGS conftest2.c
+if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext; then
+ libgo_cv_c_linker_split_non_split=yes
+else
+ libgo_cv_c_linker_split_non_split=no
+fi
+rm -f conftest1.* conftest2.* conftest])
+
+if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then
SPLIT_STACK=-fsplit-stack
AC_DEFINE(USING_SPLIT_STACK, 1,
[Define if the compiler supports -fsplit-stack])
fi
AC_SUBST(SPLIT_STACK)
AM_CONDITIONAL(USING_SPLIT_STACK,
- test "$libgo_cv_c_split_stack_supported" = yes)
+ 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 $LD --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
+[libgo_cv_c_linker_supports_split_stack=no
+if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
libgo_cv_c_linker_supports_split_stack=yes
-fi)
+fi])
if test "$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_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_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread)
AC_SUBST(PTHREAD_LIBS)
-dnl Test if -lrt is required for sched_yield.
+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_ARG_ENABLE(sjlj-exceptions,
- AC_HELP_STRING([--enable-sjlj-exceptions],
- [force use of builtin_setjmp for exceptions]),
- [case "$enableval" in
- yes|no|auto) ;;
- *) AC_MSG_ERROR([unknown argument to --enable-sjlj-exceptions]) ;;
- esac],
- [enable_sjlj_exceptions=auto])
-
-AC_CACHE_CHECK([whether to use setjmp/longjmp exceptions],
-[libgo_cv_lib_sjlj_exceptions],
-[AC_LANG_CONFTEST(
- [AC_LANG_SOURCE([
-void bar ();
-void clean (int *);
-void foo ()
-{
- int i __attribute__ ((cleanup (clean)));
- bar();
-}
-])])
-CFLAGS_hold=$CFLAGS
-CFLAGS="--save-temps -fexceptions"
-libgo_cv_lib_sjlj_exceptions=unknown
-AS_IF([ac_fn_c_try_compile],
- [if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then
- libgo_cv_lib_sjlj_exceptions=yes
- elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then
- libgo_cv_lib_sjlj_exceptions=no
- fi])
-CFLAGS=$CFLAGS_hold
-rm -f conftest*
-])
-
-if test "$enable_sjlj_exceptions" = "auto"; then
- enable_sjlj_exceptions=$libgo_cv_lib_sjlj_exceptions
-fi
-
-case $enable_sjlj_exceptions in
-yes)
- AC_DEFINE(LIBGO_SJLJ_EXCEPTIONS, 1,
- [Define if the C++ compiler is configured for setjmp/longjmp exceptions.])
- ;;
-no)
- ;;
-*)
- AC_MSG_ERROR([unable to detect exception model])
- ;;
-esac
+AC_CHECK_HEADERS(sched.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/reboot.h netinet/icmp6.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h)
-AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h)
-
-AC_CHECK_HEADERS([linux/filter.h linux/netlink.h linux/rtnetlink.h], [], [],
+AC_CHECK_HEADERS([linux/filter.h linux/if_addr.h linux/if_ether.h linux/if_tun.h linux/netlink.h linux/rtnetlink.h], [], [],
[#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
+AC_CACHE_CHECK([whether <ustat.h> can be used],
+[libgo_cv_c_ustat_h],
+[CFLAGS_hold=$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)
+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"
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([
[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 "$libgo_cv_func___sync_bool_compare_and_swap_8" = "yes"; then
+ AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8, 1,
+ [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint64])
+fi
+
AC_CACHE_CHECK([for __sync_fetch_and_add_4],
[libgo_cv_func___sync_fetch_and_add_4],
[AC_LINK_IFELSE([
[Define to 1 if the compiler provides the __sync_fetch_and_add function for uint32])
fi
+AC_CACHE_CHECK([for __sync_add_and_fetch_8],
+[libgo_cv_func___sync_add_and_fetch_8],
+[AC_LINK_IFELSE([
+typedef unsigned int uint64 __attribute__ ((mode (DI)));
+uint64 i;
+int main() { return __sync_add_and_fetch (&i, 1); }
+],
+[libgo_cv_func___sync_add_and_fetch_8=yes],
+[libgo_cv_func___sync_add_and_fetch_8=no])])
+if test "$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],
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)
+AC_CHECK_TYPES([off64_t])
CFLAGS=$CFLAGS_hold
dnl Work out the size of the epoll_events struct on GNU/Linux.
STRUCT_EPOLL_EVENT_FD_OFFSET=${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 12 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_SAVE
if test ${multilib} = yes; then
projects / gcc.git / blobdiff