50 lines
2.5 KiB
ArmAsm
50 lines
2.5 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dce.h"
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#include "libc/runtime/internal.h"
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#include "libc/macros.h"
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.privileged
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.source __FILE__
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/ Terminates process, ignoring destructors and atexit() handlers.
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/
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/ @param edi is exit code ∈ [0,256)
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/ @note _exit() is same thing
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/ @asyncsignalsafe
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_Exit: orl $RUNSTATE_TERMINATE,g_runstate(%rip)
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#if SupportsWindows()
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testb IsWindows()
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jz 1f
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movzbl %dil,%ecx # %ERRORLEVEL% is limitless
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4: call *__imp_ExitProcess(%rip)
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jmp 4b
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0: int3 # @see setjmp() in WinMain()
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#endif
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1: mov __NR_exit(%rip),%eax
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syscall
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cli
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lidt 3f
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2: hlt
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jmp 2b
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3: .quad 0
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.endfn _Exit,globl,protected
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.hidden __NR_exit
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.hidden g_runstate
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