mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
b45d50b690
- Fix build flakes - Polyfill SIGWINCH on Windows - Fix an execve issue on Windows - Make strerror show more information - Improve cmd.exe setup/teardown on Windows - Support bracketed paste mode in Blinkenlights - Show keyboard shortcuts in Blinkenlights status bar - Fixed copy_file_range() and copyfile() w/ zip filesystem - Size optimize GetDosArgv() to keep life.com 12kb in size - Improve Blinkenlights ability to load weird ELF executables - Fix program_executable_name and add GetInterpreterExecutableName - Make Python in tiny mode fail better if docstrings are requested - Update Python test exclusions in tiny* modes such as tinylinux - Add bulletproof unbreakable kprintf() troubleshooting function - Remove "oldskool" keyword from ape.S for virus scanners - Fix issue that caused backtraces to not print sometimes - Improve Blinkenlights serial uart character i/o - Make clock_gettime() not clobber errno on xnu - Improve sha256 cpuid check for old computers - Integrate some bestline linenoise fixes - Show runit process names better in htop - Remove SIGPIPE from ShowCrashReports() - Make realpath() not clobber errno - Avoid attaching GDB on non-Linux - Improve img.com example
72 lines
3 KiB
C
72 lines
3 KiB
C
/*-*- 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/calls/calls.h"
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#include "libc/nexgen32e/rdtsc.h"
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#include "libc/sock/sock.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/sysv/consts/poll.h"
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#include "libc/time/time.h"
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#include "tool/build/lib/endian.h"
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#include "tool/build/lib/modrm.h"
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#include "tool/build/lib/time.h"
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/**
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* @fileoverview i am the timelorde
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*/
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void OpPause(struct Machine *m, uint32_t rde) {
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struct pollfd pf;
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static bool once, interactive;
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if (!once) {
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interactive = isatty(0);
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once = true;
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}
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if (!IsWindows() && interactive) {
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pf.fd = 0;
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pf.events = POLLIN;
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poll(&pf, 1, 20); /* make spin loops less brutal */
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} else {
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sched_yield();
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}
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}
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void OpRdtsc(struct Machine *m, uint32_t rde) {
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uint64_t c;
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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c = ts.tv_sec * 1000000000 + ts.tv_nsec;
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Write64(m->ax, (c >> 000) & 0xffffffff);
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Write64(m->dx, (c >> 040) & 0xffffffff);
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}
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static int64_t GetTscAux(struct Machine *m) {
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uint32_t core, node;
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core = 0;
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node = 0;
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return (node & 0xfff) << 12 | (core & 0xfff);
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}
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void OpRdtscp(struct Machine *m, uint32_t rde) {
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OpRdtsc(m, rde);
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Write64(m->cx, GetTscAux(m));
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}
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void OpRdpid(struct Machine *m, uint32_t rde) {
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Write64(RegRexbRm(m, rde), GetTscAux(m));
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}
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