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https://github.com/jart/cosmopolitan.git
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393ca4be40
redbean will now cleanup child processes properly. New accounting information is available too, such as page faults and memory usage. The way it works is Cosmopolitan Libc samples the process collection on entry into read() and poll() to see if SIGCHLD needs to be raised. This change also fixes an issue with chibicc /tmp cleanup. There was also a regression in MODE=dbg because STL needed ASAN runtime support.
53 lines
2.8 KiB
C
53 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#define ShouldUseMsabiAttribute() 1
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#include "libc/calls/strace.internal.h"
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#include "libc/dce.h"
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#include "libc/nexgen32e/vendor.internal.h"
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#include "libc/nt/runtime.h"
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#include "libc/sysv/consts/nr.h"
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/**
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* Terminates process, ignoring destructors and atexit() handlers.
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*
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* When running on bare metal, this function will reboot your computer
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* by hosing the interrupt descriptors and triple faulting the system.
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*
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* @param exitcode is masked with 255
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* @asyncsignalsafe
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* @vforksafe
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* @noreturn
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*/
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privileged noinstrument noasan noubsan wontreturn void _Exit(int exitcode) {
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int i;
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STRACE("_Exit(%d)", exitcode);
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if ((!IsWindows() && !IsMetal()) || (IsMetal() && IsGenuineCosmo())) {
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asm volatile("syscall"
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: /* no outputs */
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: "a"(__NR_exit_group), "D"(exitcode)
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: "memory");
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} else if (IsWindows()) {
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__imp_ExitProcess(exitcode & 0xff);
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}
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asm("push\t$0\n\t"
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"push\t$0\n\t"
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"cli\n\t"
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"lidt\t(%rsp)");
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for (;;) asm("ud2");
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}
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