CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
AC_SUBST(CC_FOR_BUILD)
+AC_PROG_AWK
+
WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
glibgo_toolexecdir=no
glibgo_toolexeclibdir=no
-glibgo_prefixdir=$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=`$CC -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)
+# Used to tell GNU make to include a file without telling automake to
+# include it.
+go_include="-include"
+AC_SUBST(go_include)
+
is_darwin=no
is_freebsd=no
is_irix=no
is_linux=no
+is_netbsd=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 ;;
*-*-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_RTEMS, test $is_rtems = yes)
AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes)
AC_SUBST(GOOS)
AC_SUBST(GOARCH)
dnl Some files are only present when needed for specific architectures.
-GO_SYSCALLS_SYSCALL_OS_ARCH_FILE=
-if test -f ${srcdir}/syscalls/syscall_${GOOS}_${GOARCH}.go; then
- GO_SYSCALLS_SYSCALL_OS_ARCH_FILE=syscalls/syscall_${GOOS}_${GOARCH}.go
+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
fi
-AC_SUBST(GO_SYSCALLS_SYSCALL_OS_ARCH_FILE)
-
-GO_DEBUG_PROC_REGS_OS_ARCH_FILE=
-if test -f ${srcdir}/go/debug/proc/regs_${GOOS}_${GOARCH}.go; then
- GO_DEBUG_PROC_REGS_OS_ARCH_FILE=go/debug/proc/regs_${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
+fi
+if test -f ${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go; then
+ GO_SYSCALL_OS_ARCH_FILE=go/syscall/syscall_${GOOS}_${GOARCH}.go
fi
-AC_SUBST(GO_DEBUG_PROC_REGS_OS_ARCH_FILE)
+AC_SUBST(GO_LIBCALL_OS_FILE)
+AC_SUBST(GO_LIBCALL_OS_ARCH_FILE)
+AC_SUBST(GO_SYSCALL_OS_FILE)
+AC_SUBST(GO_SYSCALL_OS_ARCH_FILE)
-dnl Some targets need special flags to build sysinfo.go.
+dnl Special flags used to generate sysinfo.go.
+OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
case "$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'
+ OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
*-*-solaris2.[[89]])
# Solaris 8/9 need this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2).
- OSCFLAGS='-D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__'
+ OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__"
;;
*-*-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)
AC_SEARCH_LIBS([sched_yield], [rt])
AC_C_BIGENDIAN
+case $ac_cv_c_bigendian in
+ yes) GO_BIGENDIAN=true ;;
+ no) GO_BIGENDIAN=false ;;
+ *) AC_MSG_ERROR([unknown endianness]) ;;
+esac
+AC_SUBST(GO_BIGENDIAN)
GCC_CHECK_UNWIND_GETIPINFO
;;
esac
-AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h)
+AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/reboot.h)
+
+AC_CHECK_HEADERS([linux/filter.h linux/netlink.h linux/rtnetlink.h], [], [],
+[#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+])
+
+AC_CACHE_CHECK([whether <ustat.h> can be used],
+[libgo_cv_c_ustat_h],
+[CFLAGS_hold=$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(srandom random strerror_r strsignal wait4 mincore setenv)
+AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv)
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(epoll_create1 faccessat fallocate fchmodat fchownat futimesat inotify_add_watch inotify_init inotify_init1 inotify_rm_watch mkdirat mknodat openat renameat sync_file_range splice tee unlinkat unshare)
+AC_TYPE_OFF_T
+AC_CHECK_TYPES([loff_t])
+
+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([
[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"
+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=$CFLAGS_hold
+dnl Work out the size of the epoll_events struct on GNU/Linux.
+AC_CACHE_CHECK([epoll_event size],
+[libgo_cv_c_epoll_event_size],
+[AC_COMPUTE_INT(libgo_cv_c_epoll_event_size,
+[sizeof (struct epoll_event)],
+[#include <sys/epoll.h>],
+[libgo_cv_c_epoll_event_size=0])])
+SIZEOF_STRUCT_EPOLL_EVENT=${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=${libgo_cv_c_epoll_event_fd_offset}
+AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET)
+
+dnl See if struct exception is defined in <math.h>.
+AC_CHECK_TYPE([struct exception],
+[libgo_has_struct_exception=yes],
+[libgo_has_struct_exception=no],
+[#include <math.h>])
+if test "$libgo_has_struct_exception" = "yes"; then
+ AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1,
+ [Define to 1 if <math.h> defines struct exception])
+fi
+
+dnl 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],
+[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_SAVE
if test ${multilib} = yes; then
OSDN Git Service
