From 5241882ce2d21c23035a00d252b2c4668529fb31 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 16 Mar 2002 02:47:08 +0000
Subject: [PATCH] Update.

2002-03-15  H.J. Lu  <hjl@gnu.org>
            Ulrich Drepper  <drepper@redhat.com>

	* configure.in: Check for availability of
	init_array/fini_array/preinit_array handling in binutils.
	* config.h.in (HAVE_INITFINI_ARRAY): New macro.
	* config.make.in (have-initfini-array): New variable.
---
 ChangeLog      |  8 ++++++++
 config.h.in    |  4 ++++
 config.make.in |  1 +
 configure.in   | 29 +++++++++++++++++++++++++++++
 4 files changed, 42 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index b809c487a1..5f129777ba 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2002-03-15  H.J. Lu  <hjl@gnu.org>
+            Ulrich Drepper  <drepper@redhat.com>
+
+	* configure.in: Check for availability of
+	init_array/fini_array/preinit_array handling in binutils.
+	* config.h.in (HAVE_INITFINI_ARRAY): New macro.
+	* config.make.in (have-initfini-array): New variable.
+
 2002-03-15  Ulrich Drepper  <drepper@redhat.com>
 
 	* stdio-common/tst-printf.c (main): Comment out one test which
diff --git a/config.h.in b/config.h.in
index 42e7e48417..30e63d5144 100644
--- a/config.h.in
+++ b/config.h.in
@@ -111,6 +111,10 @@
 /* Define if binutils support TLS handling.  */
 #undef	HAVE_TLS_SUPPORT
 
+/* Define if the linker supports .preinit_array/.init_array/.fini_array
+   sections.  */
+#undef	HAVE_INITFINI_ARRAY
+
 
 /* Defined to some form of __attribute__ ((...)) if the compiler supports
    a different, more efficient calling convention.  */
diff --git a/config.make.in b/config.make.in
index 76048959c2..edd47a51bc 100644
--- a/config.make.in
+++ b/config.make.in
@@ -48,6 +48,7 @@ with-fp = @with_fp@
 with-cvs = @with_cvs@
 old-glibc-headers = @old_glibc_headers@
 unwind-find-fde = @libc_cv_gcc_unwind_find_fde@
+have-initfini-array = @libc_cv_initfinit_array@
 
 static-libgcc = @libc_cv_gcc_static_libgcc@
 
diff --git a/configure.in b/configure.in
index c48c4c1ca6..484614949f 100644
--- a/configure.in
+++ b/configure.in
@@ -1039,6 +1039,35 @@ EOF
     fi
   fi
 
+  AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
+		 libc_cv_initfinit_array, [dnl
+  cat > conftest.c <<EOF
+int _start (void) { return 0; }
+int __start (void) { return 0; }
+int foo (void) { return 1; }
+#ifdef __i386__
+asm (".section .init_array\n\t.long foo");
+#else
+# error "define appropriately for the architecture"
+#endif
+EOF
+  if AC_TRY_COMMAND([${CC-cc} -o conftest conftest.c
+		     -static -nostartfiles -nostdlib 1>&AC_FD_CC])
+  then
+    if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then
+      libc_cv_initfinit_array=yes
+    else
+      libc_cv_initfinit_array=no
+    fi
+  else
+    libc_cv_initfinit_array=no
+  fi
+  rm -f conftest*])
+  AC_SUBST(libc_cv_initfinit_array)
+  if test $libc_cv_initfinit_array = yes; then
+    AC_DEFINE(HAVE_INITFINI_ARRAY)
+  fi
+
   AC_CACHE_CHECK(for -z nodelete option,
 		 libc_cv_z_nodelete, [dnl
   cat > conftest.c <<EOF