# Process this file with autoreconf to produce configure.
-AC_PREREQ(2.64)
AC_INIT(package-unused, version-unused,, libgo)
AC_CONFIG_SRCDIR(Makefile.am)
AC_CONFIG_HEADER(config.h)
-libtool_VERSION=3:1:0
+libtool_VERSION=22:0:0
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 no-dist -Wall -Wno-portability])
+AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist subdir-objects -Wall -Wno-portability -Wno-override])
AH_TEMPLATE(PACKAGE, [Name of package])
AH_TEMPLATE(VERSION, [Version number of package])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
AC_PROG_GO
+AM_PROG_AS
m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AC_SUBST(CFLAGS)
+case ${host} in
+ *-*-aix*)
+ # Check default architecture for FAT library creation
+ if test -z "`$CC -x c -E /dev/null -g3 -o - | grep 64BIT`" ; then
+ AIX_EXTRA_ARCH='64'
+ else
+ AIX_EXTRA_ARCH='32'
+ fi
+ AC_SUBST(AIX_EXTRA_ARCH)
+ ;;
+esac
+
AM_MAINTAINER_MODE
AC_PROG_LD
WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
-AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror],
- [turns on -Werror @<:@default=yes@:>@])])
-if test "x$enable_werror" != "xno"; then
- WERROR="-Werror"
-fi
+AC_ARG_ENABLE([werror],
+ [AS_HELP_STRING([--disable-werror], [disable building with -Werror])])
+AS_IF([test "x$enable_werror" != "xno" && test "x$GCC" = "xyes"],
+ [WERROR="-Werror"])
AC_SUBST(WERROR)
glibgo_toolexecdir=no
[version_specific_libs=no])
AC_MSG_RESULT($version_specific_libs)
+GCC_WITH_TOOLEXECLIBDIR
+
# Version-specific runtime libs processing.
if test $version_specific_libs = yes; then
glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}'
- nover_glibgo_toolexeclibdir='${toolexecdir}/lib'
+ case ${with_toolexeclibdir} in
+ no)
+ nover_glibgo_toolexeclibdir='${toolexecdir}/lib'
+ ;;
+ *)
+ nover_glibgo_toolexeclibdir=${with_toolexeclibdir}
+ ;;
+ esac
else
nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
nover_glibgo_toolexeclibdir='${libdir}'
fi
-multi_os_directory=`$CC -print-multi-os-directory`
+multi_os_directory=`$GOC -print-multi-os-directory`
case $multi_os_directory in
.) ;; # Avoid trailing /.
*) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;;
fi
AC_SUBST(LIBFFI)
AC_SUBST(LIBFFIINCS)
+AM_CONDITIONAL(USE_LIBFFI, test "$with_libffi" != "no")
+
+# 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="aix android darwin dragonfly freebsd hurd illumos ios irix js linux netbsd openbsd plan9 rtems solaris windows zos"
+
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
+is_aix=no
+is_hurd=no
GOOS=unknown
case ${host} in
*-*-darwin*) is_darwin=yes; GOOS=darwin ;;
*-*-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 ;;
+ *-*-aix*) is_aix=yes; GOOS=aix ;;
+ *-*-gnu*) is_hurd=yes; GOOS=hurd ;;
esac
AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes)
AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = 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_AIX, test $is_aix = yes)
+AM_CONDITIONAL(LIBGO_IS_HURD, test $is_hurd = 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
esac
AC_SUBST(USE_DEJAGNU)
-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
+# All known GOARCH values. This is the union of all architectures
+# supported by the gofrontend and all architectures supported by the
+# gc toolchain.
+# To add a new architecture:
+# - add it to this list
+# - if appropriate, add an entry to ALLGOARCHFAMILY below
+# - add an entry to the case on ${host} below to set GOARCH
+# - update goarchList in libgo/go/go/build/syslist.go
+# - update goarch.sh to report the values for this architecture
+# - update go-set-goarch in gcc/testsuite/go.test/go-test.exp
+# - update ptrSizeMap and intSizeMap in libgo/go/cmd/cgo/main.go
+# - update arch lists in libgo/match.sh
+# - update arch lists in libgo/testsuite/gotest
+# - update +build lines in several places
+# - libgo/go/runtime/lfstack_NNbit.go
+# - libgo/go/runtime/hashNN.go
+# - libgo/go/runtime/unalignedN.go
+# - libgo/go/syscall/endian_XX.go
+# - possibly others
+# - possibly update files in libgo/go/internal/syscall/unix
+ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mips mipsle mips64 mips64le mips64p32 mips64p32le nios2 ppc ppc64 ppc64le riscv riscv64 s390 s390x sh shbe sparc sparc64 wasm"
+
+# All known GOARCH family values.
+ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 NIOS2 PPC PPC64 RISCV RISCV64 S390 S390X SH SPARC SPARC64 WASM"
+
GOARCH=unknown
case ${host} in
alpha*-*-*)
- is_alpha=yes
GOARCH=alpha
;;
+ aarch64-*-*)
+ GOARCH=arm64
+ ;;
+ aarch64_be-*-*)
+ GOARCH=arm64be
+ ;;
arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*)
- is_arm=yes
GOARCH=arm
+ case ${host} in
+ arm*b*-*-*)
+ GOARCH=armbe
+ ;;
+ esac
;;
changequote(,)dnl
i[34567]86-*-* | x86_64-*-*)
changequote([,])dnl
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#ifdef __x86_64__
#error 64-bit
-#endif],
-[is_386=yes], [is_x86_64=yes])
- if test "$is_386" = "yes"; then
- GOARCH=386
- else
- GOARCH=amd64
- fi
+#endif
+])],
+ [GOARCH=386],
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#ifdef __ILP32__
+#error x32
+#endif
+])],
+ [GOARCH=amd64],
+ [GOARCH=amd64p32]))
+ ;;
+ ia64-*-*)
+ GOARCH=ia64
;;
m68k*-*-*)
- is_m68k=yes
GOARCH=m68k
;;
mips*-*-*)
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#if _MIPS_SIM != _ABIO32
#error not o32
-#endif],
+#endif
+])],
[mips_abi="o32"],
- [AC_COMPILE_IFELSE([
+ [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#if _MIPS_SIM != _ABIN32
#error not n32
-#endif],
+#endif
+])],
[mips_abi="n32"],
- [AC_COMPILE_IFELSE([
+ [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#if _MIPS_SIM != _ABI64
#error not n64
-#endif],
+#endif
+])],
[mips_abi="n64"],
- [AC_COMPILE_IFELSE([
-#if _MIPS_SIM != _ABIO64
-#error not o64
-#endif],
-[mips_abi="o64"],
[AC_MSG_ERROR([unknown MIPS ABI])
-[mips_abi="n32"]])])])])
+[mips_abi="n32"]])])])
case "$mips_abi" in
- "o32") GOARCH=mipso32 ;;
- "n32") GOARCH=mipsn32 ;;
- "n64") GOARCH=mipsn64 ;;
- "o64") GOARCH=mipso64 ;;
+ "o32") GOARCH=mips ;;
+ "n32") GOARCH=mips64p32 ;;
+ "n64") GOARCH=mips64 ;;
+ esac
+ case "${host}" in
+ mips*el-*-*)
+ GOARCH="${GOARCH}le"
+ ;;
esac
;;
+ nios2-*-*)
+ GOARCH=nios2
+ ;;
rs6000*-*-* | powerpc*-*-*)
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#ifdef _ARCH_PPC64
#error 64-bit
-#endif],
-[is_ppc=yes], [is_ppc64=yes])
- if test "$is_ppc" = "yes"; then
- GOARCH=ppc
- else
- GOARCH=ppc64
- fi
+#endif
+])],
+[GOARCH=ppc],
+ [
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
+#error 64be
+#endif
+])],
+[GOARCH=ppc64le],
+[GOARCH=ppc64])])
+ ;;
+ riscv*-*-*)
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if __riscv_xlen == 64
+#error 64-bit
+#endif
+])],
+[GOARCH=riscv],
+[GOARCH=riscv64])
+ ;;
+ s390*-*-*)
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if defined(__s390x__)
+#error 64-bit
+#endif
+])],
+[GOARCH=s390],
+[GOARCH=s390x])
+ ;;
+ sh3eb*-*-* | sh4eb*-*-*)
+ GOARCH=shbe
+ ;;
+ sh3*-*-* | sh4*-*-*)
+ GOARCH=sh
;;
sparc*-*-*)
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#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
+#endif
+])],
+[GOARCH=sparc],
+[GOARCH=sparc64])
;;
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 $is_x86_64 = yes)
AC_SUBST(GOARCH)
+AC_SUBST(ALLGOARCH)
+AC_SUBST(ALLGOARCHFAMILY)
+
+AM_CONDITIONAL(LIBGO_IS_X86, test "$GOARCH" = "386" -o "$GOARCH" = "amd64" -o "$GOARCH" = "amd64p32")
+
+FUNCTION_DESCRIPTORS=false
+case ${host} in
+ rs6000*-*-* | powerpc*-*-*)
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if _CALL_ELF == 1
+#error descriptors
+#endif
+])],
+ [FUNCTION_DESCRIPTORS=false],
+ [FUNCTION_DESCRIPTORS=true])
+ ;;
+esac
+AC_SUBST(FUNCTION_DESCRIPTORS)
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)
# msghdr in <sys/socket.h>.
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
- *-*-solaris2.[[89]])
- # Solaris 8/9 need this so struct msghdr gets the msg_control
- # etc. fields in <sys/socket.h> (_XPG4_2).
- OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__"
- ;;
- *-*-solaris2.1[[01]])
+ *-*-solaris2.*)
# Solaris 10+ needs this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
# above doesn't work with C99.
esac
AC_SUBST(OSCFLAGS)
+dnl Check if assembler supports disabling hardware capability support.
+GCC_CHECK_ASSEMBLER_HWCAP
+
dnl Use -fsplit-stack when compiling C code if available.
AC_CACHE_CHECK([whether -fsplit-stack is supported],
[libgo_cv_c_split_stack_supported],
[CFLAGS_hold=$CFLAGS
CFLAGS="$CFLAGS -fsplit-stack"
-AC_COMPILE_IFELSE([[int i;]],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
[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 $CPPFLAGS conftest1.c >/dev/null 2>&1
+$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 "$libgo_cv_c_linker_split_non_split" = yes; then
SPLIT_STACK=-fsplit-stack
AC_DEFINE(USING_SPLIT_STACK, 1,
[Define if the compiler supports -fsplit-stack])
fi
AC_SUBST(SPLIT_STACK)
AM_CONDITIONAL(USING_SPLIT_STACK,
- test "$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_CACHE_CHECK([whether -pthread is supported],
[libgo_cv_lib_pthread],
[CFLAGS_hold=$CFLAGS
-CFLAGS="$CFLAGS -pthread"
-AC_COMPILE_IFELSE([[int i;]],
+CFLAGS="$CFLAGS -pthread -L../libatomic/.libs"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
[libgo_cv_lib_pthread=yes],
[libgo_cv_lib_pthread=no])
CFLAGS=$CFLAGS_hold])
PTHREAD_CFLAGS=
if test "$libgo_cv_lib_pthread" = yes; then
- PTHREAD_CFLAGS=-pthread
+ # RISC-V apparently adds -latomic when using -pthread.
+ PTHREAD_CFLAGS="-pthread -L../libatomic/.libs"
fi
AC_SUBST(PTHREAD_CFLAGS)
AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread)
AC_SUBST(PTHREAD_LIBS)
-dnl Test if -lrt is required for sched_yield.
+dnl Test if -lucontext is required for makecontext.
+AC_SEARCH_LIBS([makecontext], [ucontext])
+
+dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime.
AC_SEARCH_LIBS([sched_yield], [rt])
+AC_SEARCH_LIBS([nanosleep], [rt])
+AC_SEARCH_LIBS([clock_gettime], [rt])
AC_C_BIGENDIAN
GCC_CHECK_UNWIND_GETIPINFO
-AC_ARG_ENABLE(sjlj-exceptions,
- AC_HELP_STRING([--enable-sjlj-exceptions],
- [force use of builtin_setjmp for exceptions]),
- [case "$enableval" in
- yes|no|auto) ;;
- *) AC_MSG_ERROR([unknown argument to --enable-sjlj-exceptions]) ;;
- esac],
- [enable_sjlj_exceptions=auto])
+AC_CHECK_HEADERS(fcntl.h 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/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.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/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h)
-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*
+AC_CHECK_HEADERS([netinet/icmp6.h], [], [],
+[#include <netinet/in.h>
])
-if test "$enable_sjlj_exceptions" = "auto"; then
- enable_sjlj_exceptions=$libgo_cv_lib_sjlj_exceptions
-fi
-
-case $enable_sjlj_exceptions in
-yes)
- AC_DEFINE(LIBGO_SJLJ_EXCEPTIONS, 1,
- [Define if the C++ compiler is configured for setjmp/longjmp exceptions.])
- ;;
-no)
- ;;
-*)
- AC_MSG_ERROR([unable to detect exception model])
- ;;
-esac
-
-AC_CHECK_HEADERS(sys/file.h sys/mman.h syscall.h sys/epoll.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h)
-
AC_CHECK_HEADERS([linux/filter.h linux/if_addr.h linux/if_ether.h linux/if_tun.h linux/netlink.h linux/rtnetlink.h], [], [],
[#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
-AC_CACHE_CHECK([whether <ustat.h> can be used],
-[libgo_cv_c_ustat_h],
-[CFLAGS_hold=$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 dl_iterate_phdr)
+AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr memmem)
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 epoll_create1 faccessat fallocate fchmodat fchownat futimesat inotify_add_watch inotify_init inotify_init1 inotify_rm_watch mkdirat mknodat openat pipe2 renameat sync_file_range splice tee unlinkat unshare utimensat)
+AC_STRUCT_DIRENT_D_TYPE
+
+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 syscall tee unlinkat unshare utimensat)
AC_TYPE_OFF_T
-AC_CHECK_TYPES([loff_t])
+
+CFLAGS_hold="$CFLAGS"
+CFLAGS="$OSCFLAGS $CFLAGS"
+AC_CHECK_TYPES([loff_t], [], [], [[
+#include <sys/types.h>
+#include <fcntl.h>
+]])
+CFLAGS="$CFLAGS_hold"
LIBS_hold="$LIBS"
LIBS="$LIBS -lm"
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="$CFLAGS -minline-all-stringops"
-AC_COMPILE_IFELSE([int i;],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
[libgo_cv_c_stringops=yes],
[libgo_cv_c_stringops=no])
CFLAGS=$CFLAGS_hold])
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.
+dnl so that we can use the builtin 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;],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([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"
+ MATH_FLAG="-mfancy-math-387"
fi
+MATH_FLAG="${MATH_FLAG} -ffp-contract=off -fno-math-errno -fno-trapping-math"
AC_SUBST(MATH_FLAG)
CFLAGS_hold=$CFLAGS
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 $have_stat_timespec = yes)
+
dnl See if struct exception is defined in <math.h>.
AC_CHECK_TYPE([struct exception],
[libgo_has_struct_exception=yes],
[Define to 1 if <math.h> defines struct exception])
fi
-dnl Check if makecontext expects the uc_stack member of ucontext to point
-dnl to the top of the stack.
-case "$target" in
- sparc*-*-solaris2.[[89]]*)
- libgo_cv_lib_makecontext_stack_top=yes
- ;;
- *)
- libgo_cv_lib_makecontext_stack_top=no
- ;;
-esac
-if test "$libgo_cv_lib_makecontext_stack_top" = "yes"; then
- AC_DEFINE(MAKECONTEXT_STACK_TOP, 1,
- [Define if makecontext expects top of stack in uc_stack.])
-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],
[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([AC_LANG_SOURCE([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$libgo_cv_as_x86_aes" = xyes; then
+ AC_DEFINE(HAVE_AS_X86_AES, 1,
+ [Define if your assembler supports AES instructions.])
+fi
+
+dnl Test whether the linker supports the -static option.
+AC_CACHE_CHECK([whether -static is supported],
+[libgo_cv_ld_static],
+[LDFLAGS_hold=$LDFLAGS
+LDFLAGS="$LDFLAGS -static"
+AC_LINK_IFELSE([AC_LANG_PROGRAM(,)],
+[libgo_cv_ld_static=yes],
+[libgo_cv_ld_static=no])
+LDFLAGS=$LDFLAGS_hold])
+AM_CONDITIONAL(HAVE_STATIC_LINK, test "$libgo_cv_ld_static" = yes)
+
AC_CACHE_SAVE
if test ${multilib} = yes; then
multilib_arg=
fi
-AC_CONFIG_FILES(Makefile testsuite/Makefile)
+AC_CONFIG_FILES(Makefile testsuite/Makefile testsuite/libgo-test-support.exp)
AC_CONFIG_COMMANDS([default],
[if test -n "$CONFIG_FILES"; then
projects / thirdparty / gcc.git / blobdiff