mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
5546559034
- We now kill the program on violations like OpenBSD
- We now print a message explaining which promise is needed
- This change also fixes a linkage bug with thread local storage
- Your sigaction() handlers should now be more thread safe
A new `__pledge_mode` global has been introduced to make pledge() more
customizable on Linux. For example:
__attribute__((__constructor__)) static void init(void) {
__pledge_mode = SECCOMP_RET_ERRNO | EPERM;
}
Can be used to restore our old permissive pledge() behavior.
103 lines
3.1 KiB
ArmAsm
103 lines
3.1 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 2020 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"
|
|
|
|
// These function names make it a bit more obvious which signal
|
|
// caused the crash, particularly in the GDB GUI. They're coded
|
|
// into an array to pinch pennies on code size registering them.
|
|
|
|
__oncrash_thunks:
|
|
|
|
// <SYNC-LIST>: showcrashreports.c, oncrashthunks.S, oncrash.c, internal.h
|
|
|
|
.org 11*0
|
|
__oncrash_sigquit:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigquit,globl
|
|
|
|
.org 11*1
|
|
__oncrash_sigfpe:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigfpe,globl
|
|
|
|
.org 11*2
|
|
__oncrash_sigill:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigill,globl
|
|
|
|
.org 11*3
|
|
__oncrash_sigsegv:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigsegv,globl
|
|
|
|
.org 11*4
|
|
__oncrash_sigtrap:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigtrap,globl
|
|
|
|
.org 11*5
|
|
__oncrash_sigabrt:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigabrt,globl
|
|
|
|
.org 11*6
|
|
__oncrash_sigbus:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigbus,globl
|
|
|
|
.org 11*7
|
|
__oncrash_sigurg:
|
|
push %rbp
|
|
mov %rsp,%rbp
|
|
call __oncrash
|
|
pop %rbp
|
|
ret
|
|
.endfn __oncrash_sigurg,globl
|
|
|
|
// </SYNC-LIST>: showcrashreports.c, oncrashthunks.S, oncrash.c, internal.h
|
|
|
|
.endobj __oncrash_thunks,globl
|