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678db534ff
The shared parts are now firmly compiled into LibC instead of being
defined as a static library and then being copied over manually.
The non-shared ("local") parts are kept as a static library that is
linked into each binary on demand.
This finally allows us to support linking with the -fstack-protector
flag, which now replaces the `ssp` target being linked into each binary
accidentally via CMake.
31 lines
805 B
C++
31 lines
805 B
C++
/*
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* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Format.h>
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#include <AK/Types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/internals.h>
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#include <unistd.h>
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#if defined __SSP__ || defined __SSP_ALL__
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# error "file must not be compiled with stack protection enabled on it. Use -fno-stack-protector"
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#endif
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extern "C" {
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extern size_t __stack_chk_guard;
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__attribute__((used)) size_t __stack_chk_guard = (size_t)0xc6c7c8c9;
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__attribute__((noreturn)) void __stack_chk_fail()
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{
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dbgln("Error: USERSPACE({}) Stack protector failure, stack smashing detected!", getpid());
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if (__stdio_is_initialized)
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warnln("Error: Stack protector failure, stack smashing detected!");
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abort();
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}
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} // extern "C"
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