mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-13 08:40:07 +00:00
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/* Copyright (C) 1998-2014 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.
|
|
|
|
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 <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <ldsodefs.h>
|
|
#include <sysdep.h>
|
|
|
|
|
|
int __cache_line_size attribute_hidden;
|
|
/* The main work is done in the generic function. */
|
|
#define LIBC_START_MAIN generic_start_main
|
|
#define LIBC_START_DISABLE_INLINE
|
|
#define LIBC_START_MAIN_AUXVEC_ARG
|
|
#define MAIN_AUXVEC_ARG
|
|
#define INIT_MAIN_ARGS
|
|
#include <csu/libc-start.c>
|
|
|
|
struct startup_info
|
|
{
|
|
void *sda_base;
|
|
int (*main) (int, char **, char **, void *);
|
|
int (*init) (int, char **, char **, void *);
|
|
void (*fini) (void);
|
|
};
|
|
|
|
int
|
|
__libc_start_main (int argc, char **argv,
|
|
char **ev,
|
|
ElfW (auxv_t) * auxvec,
|
|
void (*rtld_fini) (void),
|
|
struct startup_info *stinfo,
|
|
char **stack_on_entry)
|
|
{
|
|
/* the PPC SVR4 ABI says that the top thing on the stack will
|
|
be a NULL pointer, so if not we assume that we're being called
|
|
as a statically-linked program by Linux... */
|
|
if (*stack_on_entry != NULL)
|
|
{
|
|
char **temp;
|
|
/* ...in which case, we have argc as the top thing on the
|
|
stack, followed by argv (NULL-terminated), envp (likewise),
|
|
and the auxiliary vector. */
|
|
/* 32/64-bit agnostic load from stack */
|
|
argc = *(long int *) stack_on_entry;
|
|
argv = stack_on_entry + 1;
|
|
ev = argv + argc + 1;
|
|
#ifdef HAVE_AUX_VECTOR
|
|
temp = ev;
|
|
while (*temp != NULL)
|
|
++temp;
|
|
auxvec = (ElfW (auxv_t) *)++ temp;
|
|
#endif
|
|
rtld_fini = NULL;
|
|
}
|
|
|
|
/* Initialize the __cache_line_size variable from the aux vector. */
|
|
for (ElfW (auxv_t) * av = auxvec; av->a_type != AT_NULL; ++av)
|
|
switch (av->a_type)
|
|
{
|
|
case AT_DCACHEBSIZE:
|
|
__cache_line_size = av->a_un.a_val;
|
|
break;
|
|
}
|
|
|
|
return generic_start_main (stinfo->main, argc, argv, auxvec,
|
|
stinfo->init, stinfo->fini, rtld_fini,
|
|
stack_on_entry);
|
|
}
|