1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
#include "libc.h"
/* Any use of __environ/environ will override this symbol. */
char **__dummy_environ = (void *)-1;
weak_alias(__dummy_environ, ___environ);
int __libc_start_main(
int (*main)(int, char **, char **), int argc, char **argv,
int (*init)(int, char **, char **), void (*fini)(void),
void (*ldso_fini)(void))
{
/* Save the environment if it may be used by libc/application */
char **envp = argv+argc+1;
if (___environ != (void *)-1) ___environ = envp;
/* Avoid writing 0 and triggering unnecessary COW */
if (ldso_fini) libc.ldso_fini = ldso_fini;
if (fini) libc.fini = fini;
/* Execute constructors (static) linked into the application */
if (init) init(argc, argv, envp);
/* Pass control to to application */
exit(main(argc, argv, envp));
return 0;
}
|