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Fix stdio regression

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This change fixes a nasty regression caused by
80b211e314 which deadlocked.

This change also causes MbedTLS to prefer the ChaCha ciphersuite on
older CPUs that don't have AES hardware instructions.
This commit is contained in:
Justine Tunney 2022-05-19 00:34:15 -07:00
parent 9208c83f7a
commit 6e52cba37a
14 changed files with 232 additions and 51 deletions
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38
libc/sysv/errno.c Normal file
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/*-*- 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/errno.h"
asm(".weak\t__asan_init");
asm(".weak\t__asan_register_globals");
asm(".weak\t__asan_unregister_globals");
asm(".weak\t__asan_version_mismatch_check_v8");
/**
* Global variable for last error.
*
* The system call wrappers update this with WIN32 error codes.
* Unlike traditional libraries, Cosmopolitan error codes are
* defined as variables. By convention, system calls and other
* functions do not update this variable when nothing's broken.
*
* @see libc/sysv/consts.sh
* @see libc/sysv/errfuns.h
* @see __errno_location() stable abi
*/
errno_t __errno;