Kyle Delong
a8e3321fbd
We'd like to start using ##mixed## instead of ##var## for attribute types to be consistent with Hack. As a followup to this (once released), we would codemod all ##var## to ##mixed##.
125 linhas
4.5 KiB
C++
125 linhas
4.5 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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| Copyright (c) 1998-2010 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include "hphp/runtime/base/crash_reporter.h"
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#include "hphp/util/stack_trace.h"
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#include "hphp/util/light_process.h"
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#include "hphp/util/logger.h"
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#include "hphp/runtime/base/program_functions.h"
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#include "hphp/runtime/base/execution_context.h"
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#include "hphp/runtime/ext/ext_error.h"
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#include "hphp/runtime/debugger/debugger.h"
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namespace HPHP {
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//////////////////////////////////////////////////////////////////////
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bool SegFaulting = false;
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static void bt_handler(int sig) {
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// In case we crash again in the signal hander or something
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signal(sig, SIG_DFL);
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// Generating a stack dumps significant time, try to stop threads
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// from flushing bad data or generating more faults meanwhile
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if (sig==SIGQUIT || sig==SIGILL || sig==SIGSEGV || sig==SIGBUS) {
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SegFaulting = true;
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LightProcess::Close();
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// leave running for SIGTERM SIGFPE SIGABRT
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}
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if (RuntimeOption::EvalSpinOnCrash) {
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char buf[128];
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snprintf(buf, 127,
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"Crashed. Waiting for debugger to attach pid %d\n", getpid());
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buf[127] = 0;
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write(STDERR_FILENO, buf, strlen(buf));
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for (;;) sleep(1);
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}
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// Turn on stack traces for coredumps
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StackTrace::Enabled = true;
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StackTraceNoHeap st;
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char pid[sizeof(Process::GetProcessId())*3+2]; // '-' and \0
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sprintf(pid,"%u",Process::GetProcessId());
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char tracefn[RuntimeOption::CoreDumpReportDirectory.length()
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+ strlen("/stacktrace..log") + strlen(pid) + 1];
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sprintf(tracefn, "%s/stacktrace.%s.log",
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RuntimeOption::CoreDumpReportDirectory.c_str(), pid);
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int debuggerCount = RuntimeOption::EnableDebugger ?
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Eval::Debugger::CountConnectedProxy() : 0;
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st.log(strsignal(sig), tracefn, pid, kCompilerId, debuggerCount);
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int fd = ::open(tracefn, O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR);
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if (fd >= 0) {
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if (!g_context.isNull()) {
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dprintf(fd, "\nPHP Stacktrace:\n\n%s",
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debug_string_backtrace(false).data());
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}
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::close(fd);
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}
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if (!RuntimeOption::CoreDumpEmail.empty()) {
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char format [] = "cat %s | mail -s \"Stack Trace from %s\" '%s'";
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char cmdline[strlen(format)+strlen(tracefn)
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+strlen(Process::GetAppName().c_str())
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+strlen(RuntimeOption::CoreDumpEmail.c_str())+1];
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sprintf(cmdline, format, tracefn, Process::GetAppName().c_str(),
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RuntimeOption::CoreDumpEmail.c_str());
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Util::ssystem(cmdline);
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}
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// Calling all of these library functions in a signal handler
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// is completely undefined behavior, but we seem to get away with it.
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// Do it last just in case
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Logger::Error("Core dumped: %s", strsignal(sig));
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// Give the debugger a chance to do extra logging if there are any attached
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// debugger clients.
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Eval::Debugger::LogShutdown(Eval::Debugger::ShutdownKind::Abnormal);
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if (!g_context.isNull()) {
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// sync up gdb Dwarf info so that gdb can do a full backtrace
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// from the core file. Do this at the very end as syncing needs
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// to allocate memory for the ELF file.
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g_vmContext->syncGdbState();
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}
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// re-raise the signal and pass it to the default handler
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// to terminate the process.
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raise(sig);
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}
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void install_crash_reporter() {
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signal(SIGQUIT, bt_handler);
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signal(SIGILL, bt_handler);
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signal(SIGFPE, bt_handler);
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signal(SIGSEGV, bt_handler);
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signal(SIGBUS, bt_handler);
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signal(SIGABRT, bt_handler);
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register_assert_fail_logger(&StackTraceNoHeap::AddExtraLogging);
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}
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//////////////////////////////////////////////////////////////////////
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}
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