Make improvements

- Document redbean's argon2 module
- Fix regressions in cthreads library
- Make testlib work better with threads
- Give the cthreads library lots of love
- Remove some of the stdio assembly code
- Implement getloadavg() across platforms
- Code size optimizations for errnos, etc.
- Only check for signals in main thread on Windows
- Make errnos for dup2 / dup3 consistent with posix

This change also fixes a bug in the argon2 module, where the NUL
terminator was being included in the hash encoded ascii string. This
shouldn't require any database migrations to folks who found this module
and productionized it, since the argon2 library treats it as a c string.
This commit is contained in:
Justine Tunney 2022-05-27 13:25:46 -07:00
parent cb67223051
commit de5de19004
234 changed files with 1728 additions and 1993 deletions

View file

@ -0,0 +1,38 @@
/*-*- 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"
.privileged
// Loads previously saved processor state.
//
// @param rdi points to the jmp_buf
// @param rsi is returned by setlongerjmp() invocation
// @noreturn
longerjmp:
mov $1,%eax
mov %rsi,%rdx
mov (%rdi),%rsp
mov 8(%rdi),%rbx
mov 16(%rdi),%rbp
mov 24(%rdi),%r12
mov 32(%rdi),%r13
mov 40(%rdi),%r14
mov 48(%rdi),%r15
jmp *56(%rdi)
.endfn longerjmp,globl

View file

@ -0,0 +1,41 @@
/*-*- 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"
// Saves caller CPU state to cacheline.
//
// @param rdi points to jmp_buf
// @return eax contains 0 when set, and 1 if jumped
// @return rdx contains value passed to longerjmp()
// @returnstwice
setlongerjmp:
lea 8(%rsp),%rax
mov %rax,(%rdi)
mov %rbx,8(%rdi)
mov %rbp,16(%rdi)
mov %r12,24(%rdi)
mov %r13,32(%rdi)
mov %r14,40(%rdi)
mov %r15,48(%rdi)
mov (%rsp),%rax
mov %rax,56(%rdi)
xor %eax,%eax
xor %edx,%edx
ret
.endfn setlongerjmp,globl

View file

@ -18,6 +18,11 @@
*/
#include "libc/nexgen32e/threaded.h"
bool __threaded;
/**
* Contains TID of main thread or 0 if threading isn't enabled.
*/
int __threaded;
bool __tls_enabled;
unsigned __tls_index;

View file

@ -4,7 +4,7 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern bool __threaded;
extern int __threaded;
extern bool __tls_enabled;
extern unsigned __tls_index;