diff options
Diffstat (limited to 'sysdeps/generic/libc-start.c')
-rw-r--r-- | sysdeps/generic/libc-start.c | 37 |
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)); } |