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-rw-r--r--sysdeps/generic/libc-start.c37
1 files changed, 33 insertions, 4 deletions
diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c
index d6fd3d3581..d32e54f162 100644
--- a/sysdeps/generic/libc-start.c
+++ b/sysdeps/generic/libc-start.c
@@ -16,29 +16,58 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <link.h>
#include <stdlib.h>
#include <unistd.h>
+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);
- /* Call the initializer of the libc. */
- __libc_init_first ();
-
/* 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 (1, "\ninitialize libc\n\n", NULL);
+#endif
+ __libc_init_first (argc, argv, __environ);
+
/* Call the initializer of the program. */
+#ifdef PIC
+ if (_dl_debug_impcalls)
+ _dl_debug_message (1, "\ninitialize program: ", argv[0], "\n\n", NULL);
+#endif
(*init) ();
/* Register the destructor of the program. */
atexit (fini);
- exit ((*main) (argc, argv, envp));
+#ifdef PIC
+ if (_dl_debug_impcalls)
+ _dl_debug_message (1, "\ntransferring control: ", argv[0], "\n\n", NULL);
+#endif
+
+ exit ((*main) (argc, argv, __environ));
}