mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 07:34:57 +00:00
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <AK/Types.h>
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/internals.h>
|
|
#include <unistd.h>
|
|
|
|
extern "C" {
|
|
|
|
extern u32 __stack_chk_guard;
|
|
|
|
int main(int, char**, char**);
|
|
|
|
extern void __libc_init();
|
|
extern void _init();
|
|
extern char** environ;
|
|
extern bool __environ_is_malloced;
|
|
|
|
int _start(int argc, char** argv, char** env);
|
|
int _start(int argc, char** argv, char** env)
|
|
{
|
|
u32 original_stack_chk = __stack_chk_guard;
|
|
arc4random_buf(&__stack_chk_guard, sizeof(__stack_chk_guard));
|
|
|
|
if (__stack_chk_guard == 0)
|
|
__stack_chk_guard = original_stack_chk;
|
|
|
|
_init();
|
|
|
|
int status = main(argc, argv, env);
|
|
|
|
// Restore the stack guard to the value we entered _start with,
|
|
// so we don't trigger the stack canary check on the way out.
|
|
__stack_chk_guard = original_stack_chk;
|
|
|
|
return status;
|
|
}
|
|
}
|
|
|
|
void* __dso_handle __attribute__((__weak__));
|