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Once again, QEMU creates threads while running its constructors, which is a recipe for disaster if we switch out the stack guard while that is already running in the background. To solve that, move initialization to our LibC initialization stage, which is before any actual external initialization code runs.
50 lines
965 B
C++
50 lines
965 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@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/Types.h>
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#include <assert.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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#ifndef _DYNAMIC_LOADER
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extern "C" {
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extern size_t __stack_chk_guard;
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extern bool s_global_initializers_ran;
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int main(int, char**, char**);
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// Tell the compiler that this may be called from somewhere else.
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int _entry(int argc, char** argv, char** env) __attribute__((used));
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void _start(int, char**, char**) __attribute__((used));
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NAKED void _start(int, char**, char**)
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{
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asm(
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"push $0\n"
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"jmp _entry@plt\n");
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}
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int _entry(int argc, char** argv, char** env)
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{
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environ = env;
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__environ_is_malloced = false;
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__begin_atexit_locking();
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s_global_initializers_ran = true;
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_init();
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int status = main(argc, argv, environ);
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exit(status);
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return 20150614;
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}
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}
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#endif
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