cosmopolitan/libc/log/showcrashreportsearly.S
Justine Tunney 44da16255a Show crash reports on SIGSYS
This will help make it easier to troubleshoot ABI breakages with on
operating systems that, unlike Linux don't have ironclad guarantees
to not break userspace.
2022-06-23 13:01:01 -07:00

35 lines
2.2 KiB
ArmAsm

/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/macros.internal.h"
// Normally we call ShowCrashReports() from main, but if
// there's a crash in a constructor, this will help with
// troubleshooting it. You need to add:
//
// STATIC_YOINK("ShowCrashReportsEarly");
//
// To the top of your main module to use this.
.init.start 400,ShowCrashReportsEarly
push %rdi
push %rsi
call ShowCrashReports
pop %rsi
pop %rdi
.init.end 400,ShowCrashReportsEarly