diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/libc-start.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/libc-start.c | 23 |
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 e9d21a6..5e089d4 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 |