ladybird/Userland/Libraries/LibC/ssp.cpp
Peter Bindels a5a62f99c5 LibC: Use 64-bit stack smash value for 64-bit mode
Otherwise it'll use the first 32 bits that happen to come after,
leading to very weird bugs. Fixes #8601
2021-07-17 01:45:20 +02:00

37 lines
868 B
C++

/*
* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <AK/Types.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/internals.h>
#include <unistd.h>
#if defined __SSP__ || defined __SSP_ALL__
# error "file must not be compiled with stack protection enabled on it. Use -fno-stack-protector"
#endif
extern "C" {
extern size_t __stack_chk_guard;
size_t __stack_chk_guard = (size_t)0xc6c7c8c9;
__attribute__((noreturn)) void __stack_chk_fail()
{
dbgln("Error: USERSPACE({}) Stack protector failure, stack smashing detected!", getpid());
if (__stdio_is_initialized)
warnln("Error: Stack protector failure, stack smashing detected!");
abort();
}
__attribute__((noreturn)) void __stack_chk_fail_local()
{
__stack_chk_fail();
}
} // extern "C"