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authorH.J. Lu <hjl.tools@gmail.com>2010-12-15 14:56:40 +0000
committerH.J. Lu <hjl.tools@gmail.com>2010-12-15 14:56:40 +0000
commit02ecc8e968f7524f4c41cd7942adff4ff31afe5c (patch)
treed380df5339289f8d485d5cf384ff3285f3516647 /ld/configure.in
parentbef6be3d9f7368a79569cdefefde45724aa64fa5 (diff)
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Add SORT_BY_INIT_PRIORITY.
bfd/ 2010-12-15 H.J. Lu <hongjiu.lu@intel.com> * elf.c (_bfd_elf_new_section_hook): Special handling for .init_array/.fini_array output sections. ld/ 2010-12-15 H.J. Lu <hongjiu.lu@intel.com> * Makefile.am (GENSCRIPTS): Add @enable_initfini_array@. * NEWS: Mention SORT_BY_INIT_PRIORITY. * configure.in: Add AC_CANONICAL_BUILD. Add --enable-initfini-array. * genscripts.sh (ENABLE_INITFINI_ARRAY): New. * ld.h (sort_type): Add by_init_priority. * ld.texinfo: Document SORT_BY_INIT_PRIORITY. * ldgram.y (SORT_BY_INIT_PRIORITY): New. (wildcard_spec): Handle SORT_BY_INIT_PRIORITY. * ldlang.c (get_init_priority): New. (compare_section): Use get_init_priority for by_init_priority. * ldlex.l (SORT_BY_INIT_PRIORITY): New. * scripttempl/elf.sc: Support ENABLE_INITFINI_ARRAY. * Makefile.in: Regenerated. * aclocal.m4: Regenerated. * config.in: Likewise. * configure: Likewise. ld/testsuite/ 2010-12-15 H.J. Lu <hongjiu.lu@intel.com> * ld-elf/elf.exp (array_tests): Add init-mixed. (array_tests_static): Likewise. Also delete tmpdir/init-mixed. * ld-elf/init-mixed.c: New. * ld-elf/init-mixed.out: Likewise.
Diffstat (limited to 'ld/configure.in')
-rw-r--r--ld/configure.in25
1 files changed, 25 insertions, 0 deletions
diff --git a/ld/configure.in b/ld/configure.in
index 85fe903..15d7685 100644
--- a/ld/configure.in
+++ b/ld/configure.in
@@ -5,6 +5,7 @@ AC_INIT
AC_CONFIG_SRCDIR(ldmain.c)
AC_CANONICAL_TARGET
+AC_CANONICAL_BUILD
AC_ISC_POSIX
changequote(,)dnl
@@ -175,6 +176,30 @@ if test x$enable_plugins = xno ; then
fi
AM_CONDITIONAL([ENABLE_PLUGINS], [test x$enable_plugins = xyes])
+AC_ARG_ENABLE(initfini-array,
+ [ --enable-initfini-array use .init_array/.fini_array sections],
+ [], [
+AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
+ gcc_cv_initfini_array, [dnl
+ if test "x${build}" = "x${target}" ; then
+ AC_RUN_IFELSE([AC_LANG_SOURCE([
+static int x = -1;
+int main (void) { return x; }
+int foo (void) { x = 0; }
+int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;])],
+ [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
+ [gcc_cv_initfini_array=no])
+ else
+ gcc_cv_initfini_array=no
+ fi])
+ enable_initfini_array=$gcc_cv_initfini_array
+])
+AC_SUBST(enable_initfini_array)
+if test $enable_initfini_array = yes; then
+ AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
+ [Define .init_array/.fini_array sections are available and working.])
+fi
+
AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],