mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
78 lines
3.0 KiB
C
78 lines
3.0 KiB
C
/* Entry-point for programs. NaCl version.
|
|
Copyright (C) 2015-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
In addition to the permissions in the GNU Lesser General Public
|
|
License, the Free Software Foundation gives you unlimited
|
|
permission to link the compiled version of this file with other
|
|
programs, and to distribute those programs without any restriction
|
|
coming from the use of this file. (The GNU Lesser General Public
|
|
License restrictions do apply in other respects; for example, they
|
|
cover modification of the file, and distribution when not linked
|
|
into another program.)
|
|
|
|
Note that people who make modified versions of this file are not
|
|
obligated to grant this special exception for their modified
|
|
versions; it is their choice whether to do so. The GNU Lesser
|
|
General Public License gives permission to release a modified
|
|
version without this exception; this exception also makes it
|
|
possible to release a modified version which carries forward this
|
|
exception.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdint.h>
|
|
#include <link.h>
|
|
|
|
/* NaCl's elf32.h is incompatible with the real <elf.h>. */
|
|
#define NATIVE_CLIENT_SRC_INCLUDE_ELF32_H_
|
|
#include <native_client/src/untrusted/nacl/nacl_startup.h>
|
|
|
|
|
|
/* The application defines this, of course. */
|
|
extern int main (int argc, char **argv, char **envp);
|
|
|
|
/* But maybe it defines this too, in which case it takes precedence. */
|
|
extern int __nacl_main (int argc, char **argv, char **envp)
|
|
__attribute__ ((weak));
|
|
|
|
/* These are defined in libc. */
|
|
extern int __libc_csu_init (int argc, char **argv, char **envp);
|
|
extern void __libc_csu_fini (void);
|
|
extern void __libc_start_main (int (*main) (int, char **, char **),
|
|
int argc, char **argv, ElfW(auxv_t) *auxv,
|
|
int (*init) (int, char **, char **),
|
|
void (*fini) (void),
|
|
void (*rtld_fini) (void),
|
|
void *stack_end);
|
|
|
|
void
|
|
_start (uint32_t info[])
|
|
{
|
|
/* The generic code actually assumes that envp follows argv. */
|
|
|
|
__libc_start_main (&__nacl_main ?: &main,
|
|
nacl_startup_argc (info),
|
|
nacl_startup_argv (info),
|
|
nacl_startup_auxv (info),
|
|
&__libc_csu_init, &__libc_csu_fini,
|
|
nacl_startup_fini (info),
|
|
__builtin_frame_address (0));
|
|
|
|
/* That should not return. Make sure we crash if it did. */
|
|
while (1)
|
|
__builtin_trap ();
|
|
}
|