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authorUlrich Drepper <drepper@redhat.com>1998-03-09 23:40:44 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-09 23:40:44 +0000
commit1393c745813e58e6bfbcb728b471765c4aa6c36f (patch)
tree83a07a633fd4dd0cda77a4ebea698c9b01bd88ff /sysdeps/unix/sysv/linux/libc-start.c
parent0c367d923b58c146c30acc560c18097bacae91c4 (diff)
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Update.
1998-03-09 23:36  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/init-first.c [!PIC]: Expect arguments
	in correct format.
	* sysdeps/unix/sysv/linux/libc-start.c: Call __libc_init_first
	with correct parameters.
	[!PIC]: Initialize __libc_multiple_libcs.
Diffstat (limited to 'sysdeps/unix/sysv/linux/libc-start.c')
-rw-r--r--sysdeps/unix/sysv/linux/libc-start.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/libc-start.c b/sysdeps/unix/sysv/linux/libc-start.c
index e9d21a638b..5e089d4ebb 100644
--- a/sysdeps/unix/sysv/linux/libc-start.c
+++ b/sysdeps/unix/sysv/linux/libc-start.c
@@ -20,26 +20,39 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-extern void __libc_init_first (void);
+extern void __libc_init_first (int argc, char **argv, char **envp);
+
+extern int _dl_starting_up;
+weak_extern (_dl_starting_up)
+extern int __libc_multiple_libcs;
 
 int
 __libc_start_main (int (*main) (int, char **, char **), int argc,
 		   char **argv, void (*init) (void), void (*fini) (void),
 		   void (*rtld_fini) (void))
 {
+#ifndef PIC
+  /* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
+     If the address would be taken inside the expression the optimizer
+     would try to be too smart and throws it away.  Grrr.  */
+  int *dummy_addr = &_dl_starting_up;
+
+  __libc_multiple_libcs = dummy_addr && !_dl_starting_up;
+#endif
+
   /* Register the destructor of the dynamic linker if there is any.  */
   if (rtld_fini != NULL)
     atexit (rtld_fini);
 
+  /* Set the global _environ variable correctly.  */
+  __environ = &argv[argc + 1];
+
   /* Call the initializer of the libc.  */
 #ifdef PIC
   if (_dl_debug_impcalls)
     _dl_debug_message ("\tinitialize libc\n\n", NULL);
 #endif
-  __libc_init_first ();
-
-  /* Set the global _environ variable correctly.  */
-  __environ = &argv[argc + 1];
+  __libc_init_first (argc, argv, __environ);
 
   /* Call the initializer of the program.  */
 #ifdef PIC