mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
9208c83f7a
- add vdso dump utility - tests now log stack usage - rename g_ftrace to __ftrace - make internal spinlocks go faster - add conformant c11 atomics library - function tracing now logs stack usage - make function call tracing thread safe - add -X unsecure (no ssl) mode to redbean - munmap() has more consistent behavior now - pacify fsync() calls on python unit tests - make --strace flag work better in redbean - start minimizing and documenting compiler flags
43 lines
2.6 KiB
C
43 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 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/runtime/runtime.h"
|
|
|
|
/**
|
|
* System call logging enabled state.
|
|
*
|
|
* If Cosmopolitan was compiled with the `SYSDEBUG` macro (this is the
|
|
* default behavior, except in tiny and release modes) then `__strace`
|
|
* shall control whether or not system calls are logged to fd 2. If it's
|
|
* greater than zero, syscalls are logged. Otherwise, they're aren't.
|
|
*
|
|
* By convention, functions wishing to disable syscall tracing for a
|
|
* short time period should say:
|
|
*
|
|
* void foo() {
|
|
* --__strace;
|
|
* bar();
|
|
* ++__strace;
|
|
* }
|
|
*
|
|
* This way you still have some flexibility to force syscall tracing, by
|
|
* setting `__strace` to a higher number like `2` or `200`. Even though
|
|
* under normal circumstances, `__strace` should only be either zero or
|
|
* one.
|
|
*/
|
|
_Atomic(int) __strace;
|