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Make fixes and improvements
- Introduce __assert_disable global - Improve strsignal() thread safety - Make system call tracing thread safe - Fix SO_RCVTIMEO / SO_SNDTIMEO on Windows - Refactor DescribeFoo() functions into one place - Fix fork() on Windows when TLS and MAP_STACK exist - Round upwards in setsockopt(SO_RCVTIMEO) on Windows - Disable futexes on OpenBSD which seem extremely broken - Implement a better kludge for monotonic time on Windows
This commit is contained in:
Justine Tunney
parent
5d837c4e7c
commit
fbc053e018
186 changed files with 1836 additions and 1325 deletions
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/fmt/magnumstrs.internal.h"
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#include "libc/macros.internal.h"
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.macro .e e s
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.long \e - kSignalNames
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.long 1f - kSignalNames
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.rodata.str1.1
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1: .string "\s"
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.previous
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.endm
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.section .rodata
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.align 4
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.underrun
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kSignalNames:
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.e SIGHUP,"HUP"
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.e SIGINT,"INT"
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.e SIGQUIT,"QUIT"
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.e SIGILL,"ILL"
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.e SIGTRAP,"TRAP"
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.e SIGABRT,"ABRT"
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.e SIGBUS,"BUS"
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.e SIGFPE,"FPE"
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.e SIGKILL,"KILL"
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.e SIGUSR1,"USR1"
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.e SIGSEGV,"SEGV"
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.e SIGUSR2,"USR2"
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.e SIGPIPE,"PIPE"
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.e SIGALRM,"ALRM"
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.e SIGTERM,"TERM"
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.e SIGSTKFLT,"STKFLT"
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.e SIGCHLD,"CHLD"
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.e SIGCONT,"CONT"
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.e SIGSTOP,"STOP"
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.e SIGTSTP,"TSTP"
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.e SIGTTIN,"TTIN"
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.e SIGTTOU,"TTOU"
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.e SIGURG,"URG"
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.e SIGXCPU,"XCPU"
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.e SIGXFSZ,"XFSZ"
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.e SIGVTALRM,"VTALRM"
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.e SIGPROF,"PROF"
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.e SIGWINCH,"WINCH"
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.e SIGIO,"IO"
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.e SIGSYS,"SYS"
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.e SIGINFO,"INFO"
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.e SIGRTMAX,"RTMAX"
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.e SIGRTMIN,"RTMIN"
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.e SIGEMT,"EMT"
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.e SIGPWR,"PWR"
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.long MAGNUM_TERMINATOR
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.endobj kSignalNames,globl,hidden
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.overrun
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@ -1,78 +0,0 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/fmt/magnumstrs.internal.h"
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#include "libc/str/str.h"
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static char g_strsignal[12];
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static inline char *StpCpy(char *d, const char *s) {
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size_t i;
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for (i = 0;; ++i) {
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if (!(d[i] = s[i])) {
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return d + i;
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}
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}
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}
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/**
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* Returns string describing signal code.
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*
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* This returns SIGZERO for 0 which is the empty value. Textual names
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* should be available for signals 1 through 32. Signals in the range 33
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* and 128 are returned as a `SIG%03d` string. Everything else is SIGWUT
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*
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* @param sig is signal number which should be in range 1 through 128
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* @return pointer to static memory that mutates on subsequent calls
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* @see sigaction()
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*/
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privileged char *strsignal(int sig) {
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// we need privileged because:
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// kprintf is privileged and it depends on this
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char *p;
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const char *s;
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p = g_strsignal;
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p[0] = 'S';
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p[1] = 'I';
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p[2] = 'G';
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p[3] = 0;
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if (sig) {
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if ((s = GetMagnumStr(kSignalNames, sig))) {
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StpCpy(p + 3, s);
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return p;
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}
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}
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if (!sig) {
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p[3] = 'Z';
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p[4] = 'E';
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p[5] = 'R';
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p[6] = 'O';
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p[7] = 0;
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} else if (1 <= sig && sig <= 128) {
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p[3] = '0' + sig / 100;
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p[4] = '0' + sig / 10 % 10;
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p[5] = '0' + sig % 10;
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p[6] = 0;
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} else {
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p[3] = 'W';
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p[4] = 'U';
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p[5] = 'T';
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p[6] = 0;
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}
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return g_strsignal;
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}
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