blob: 5c20870c9175d0c8eb810a5936fc95023d5aaf14 [file] [log] [blame]
// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/shared/signal/crash_signals.h"
#include <signal.h>
#include "starboard/configuration.h"
#include "starboard/log.h"
#include "starboard/system.h"
namespace starboard {
namespace shared {
namespace signal {
namespace {
const int kSignalsToTrap[] = {
SIGABRT, SIGFPE, SIGILL, SIGINT, SIGSEGV,
};
const char* GetSignalName(int signal_id) {
switch (signal_id) {
case SIGABRT:
return "SIGABRT";
case SIGFPE:
return "SIGFPE";
case SIGILL:
return "SIGILL";
case SIGINT:
return "SIGINT";
case SIGSEGV:
return "SIGSEGV";
default:
return "UNKNOWN SIGNAL";
}
}
void DumpStackSignalSafe(int signal_id) {
const char* signal_name = GetSignalName(signal_id);
SbLogRawFormatF("\nCaught signal: %s (%d)\n", signal_name, signal_id);
SbLogFlush();
SbLogRawDumpStack(1);
UninstallCrashSignalHandlers();
SbSystemBreakIntoDebugger();
}
} // namespace
void InstallCrashSignalHandlers() {
for (int i = 0; i < SB_ARRAY_SIZE_INT(kSignalsToTrap); ++i) {
::signal(kSignalsToTrap[i], &DumpStackSignalSafe);
}
}
void UninstallCrashSignalHandlers() {
for (int i = 0; i < SB_ARRAY_SIZE_INT(kSignalsToTrap); ++i) {
::signal(kSignalsToTrap[i], SIG_DFL);
}
}
} // namespace signal
} // namespace shared
} // namespace starboard