-dnl Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2006, 2007, 2008, 2011 Free Software Foundation, Inc.
dnl
dnl This file is part of GCC.
dnl
[], [
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
gcc_cv_initfini_array, [dnl
- AC_RUN_IFELSE([AC_LANG_SOURCE([
+ if test "x${build}" = "x${target}" && test "x${build}" = "x${host}"; then
+ case "${target}" in
+ ia64-*)
+ AC_RUN_IFELSE([AC_LANG_SOURCE([
+#ifndef __ELF__
+#error Not an ELF OS
+#endif
+/* We turn on .preinit_array/.init_array/.fini_array support for ia64
+ if it can be used. */
static int x = -1;
int main (void) { return x; }
int foo (void) { x = 0; }
-int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;])],
+int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
+])],
[gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
- [gcc_cv_initfini_array=no])])
+ [gcc_cv_initfini_array=no]);;
+ *)
+ gcc_cv_initfini_array=no
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 \
+ -a "$gcc_cv_gld_minor_version" -ge 22 \
+ -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_initfini_array=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
+ cat > conftest.s <<\EOF
+.section .dtors,"a",%progbits
+.balign 4
+.byte 'A', 'A', 'A', 'A'
+.section .ctors,"a",%progbits
+.balign 4
+.byte 'B', 'B', 'B', 'B'
+.section .fini_array.65530,"a",%progbits
+.balign 4
+.byte 'C', 'C', 'C', 'C'
+.section .init_array.65530,"a",%progbits
+.balign 4
+.byte 'D', 'D', 'D', 'D'
+.section .dtors.64528,"a",%progbits
+.balign 4
+.byte 'E', 'E', 'E', 'E'
+.section .ctors.64528,"a",%progbits
+.balign 4
+.byte 'F', 'F', 'F', 'F'
+.section .fini_array.01005,"a",%progbits
+.balign 4
+.byte 'G', 'G', 'G', 'G'
+.section .init_array.01005,"a",%progbits
+.balign 4
+.byte 'H', 'H', 'H', 'H'
+.text
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -e 0 -o conftest conftest.o > /dev/null 2>&1 \
+ && $gcc_cv_objdump -s -j .init_array conftest \
+ | grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
+ && $gcc_cv_objdump -s -j .fini_array conftest \
+ | grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
+ gcc_cv_initfini_array=yes
+ fi
+changequote(,)dnl
+ rm -f conftest conftest.*
+changequote([,])dnl
+ fi
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE([
+#ifndef __ELF__
+#error Not an ELF OS
+#endif
+#include <stdlib.h>
+#if defined __GLIBC_PREREQ && __GLIBC_PREREQ (2, 4)
+#else
+#error The C library not known to support .init_array/.fini_array
+#endif
+])],, [gcc_cv_initfini_array=no]);;
+ esac
+ else
+ AC_MSG_CHECKING(cross compile... guessing)
+ gcc_cv_initfini_array=no
+ fi])
enable_initfini_array=$gcc_cv_initfini_array
])
if test $enable_initfini_array = yes; then
dnl Always pass --32 to ia32 Linux assembler.
gcc_cv_as_flags="--32"
;;
+ powerpc*-*-darwin*)
+ dnl Always pass -arch ppc to assembler.
+ gcc_cv_as_flags="-arch ppc"
+ ;;
*)
gcc_cv_as_flags=" "
;;
if test $in_tree_gas = yes; then
gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes])
el])if test x$gcc_cv_as != x; then
- echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s
+ AS_ECHO([ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]')]) > conftest.s
if AC_TRY_COMMAND([$gcc_cv_as $gcc_cv_as_flags $4 -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD])
then
ifelse([$6],, [$2]=yes, [$6])