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add backtrace method and SIGSEGV

pull/135/head
Simon Stürz 2016-03-03 22:30:14 +01:00 committed by Michael Zanetti
parent 4a8db83c8b
commit d3cb1317af
3 changed files with 90 additions and 19 deletions
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2
guh.pri
View File

@ -11,7 +11,7 @@ DEFINES += GUH_VERSION_STRING=\\\"$${GUH_VERSION_STRING}\\\" \
QT+= network
QMAKE_CXXFLAGS += -Werror -std=c++11
QMAKE_CXXFLAGS += -Werror -std=c++11 -g
QMAKE_LFLAGS += -std=c++11
# Check for Bluetoot LE support (Qt >= 5.4)

80
server/guhapplication.cpp
View File

@ -22,13 +22,78 @@
#include "loggingcategories.h"
#include "guhcore.h"
#include "unistd.h"
#include "signal.h"
#include <execinfo.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <cxxabi.h>
namespace guhserver {
static void catchUnixSignals(const std::vector<int>& quitSignals, const std::vector<int>& ignoreSignals = std::vector<int>()) {
static void printBacktrace()
{
void* trace[20];
int traceLength = backtrace(trace, sizeof(trace) / sizeof(void*));
if (traceLength == 0)
return;
char** symbolList = backtrace_symbols(trace, traceLength);
size_t funktionNameSize = 256;
char* functionName = (char*)malloc(funktionNameSize);
for (int i = 1; i < traceLength; i++) {
QString address = QString().sprintf("%p", trace[i]);
QString fileName = QString(symbolList[i]);
int fileIndex = fileName.indexOf("(");
QString lineCommand = QString("addr2line %1 -e %2").arg(address).arg(fileName.left(fileIndex));
// Read stdout from addr2line
char buffer[1024];
FILE *lineFile = popen(lineCommand.toLatin1().data(), "r");
QString line(fgets(buffer, sizeof(buffer), lineFile));
pclose(lineFile);
char *begin_name = 0, *begin_offset = 0, *end_offset = 0;
// find parentheses and +address offset surrounding the mangled name:
// ./module(function+0x15c) [0x8048a6d]
for (char *p = symbolList[i]; *p; ++p) {
if (*p == '(')
begin_name = p;
else if (*p == '+')
begin_offset = p;
else if (*p == ')' && begin_offset) {
end_offset = p;
break;
}
}
qCCritical(dcApplication) << QString("[%1] %2").arg(i).arg(symbolList[i]);
if (begin_name && begin_offset && end_offset && begin_name < begin_offset) {
int status;
*begin_name++ = '\0';
*begin_offset++ = '\0';
*end_offset = '\0';
char* ret = abi::__cxa_demangle(begin_name, functionName, &funktionNameSize, &status);
if (status == 0) {
functionName = ret;
qCritical(dcApplication) << QString(" %1").arg(QString().sprintf("%s+%s", functionName, begin_offset));
} else {
qCCritical(dcApplication) << QString(" %1").arg(QString().sprintf("%s()+%s", begin_name, begin_offset));
}
}
qCCritical(dcApplication) << QString(" %1").arg(line.remove("\n"));
}
free(functionName);
free(symbolList);
}
static void catchUnixSignals(const std::vector<int>& quitSignals, const std::vector<int>& ignoreSignals = std::vector<int>())
{
auto handler = [](int sig) ->void {
switch (sig) {
case SIGQUIT:
@ -43,6 +108,11 @@ static void catchUnixSignals(const std::vector<int>& quitSignals, const std::vec
case SIGHUP:
qCDebug(dcApplication) << "Cought SIGHUP quit signal...";
break;
case SIGSEGV: {
qCCritical(dcApplication) << "Cought SIGSEGV signal. Segmentation fault!";
printBacktrace();
exit(1);
}
default:
break;
}
@ -64,10 +134,12 @@ static void catchUnixSignals(const std::vector<int>& quitSignals, const std::vec
}
GuhApplication::GuhApplication(int &argc, char **argv) :
QCoreApplication(argc, argv)
{
catchUnixSignals({SIGQUIT, SIGINT, SIGTERM, SIGHUP});
catchUnixSignals({SIGQUIT, SIGINT, SIGTERM, SIGHUP, SIGSEGV});
}
}

27
tests/auto/jsonrpc/testjsonrpc.cpp
View File

@ -215,21 +215,20 @@ void TestJSONRPC::stateChangeEmitsNotifications()
clientSpy.wait();
// Make sure the notification contains all the stuff we expect
QVariantList stateChangedVariants = checkNotifications(clientSpy, "Devices.StateChanged");
QVERIFY2(!stateChangedVariants.isEmpty(), "Did not get Devices.StateChanged notification.");
QVariant stateChangedVariants = checkNotification(clientSpy, "Devices.StateChanged");
QVERIFY2(!stateChangedVariants.isNull(), "Did not get Devices.StateChanged notification.");
qDebug() << "got" << stateChangedVariants.count() << "Devices.StateChanged notifications";
// qDebug() << "got" << stateChangedVariants.count() << "Devices.StateChanged notifications";
bool found = false;
foreach (const QVariant &stateChangedVariant, stateChangedVariants) {
if (stateChangedVariant.toMap().value("params").toMap().value("stateTypeId").toUuid() == stateTypeId)
{
QCOMPARE(stateChangedVariant.toMap().value("params").toMap().value("value").toInt(), newVal);
found = true;
break;
}
}
QCOMPARE(found, true);
// bool found = false;
// foreach (const QVariant &stateChangedVariant, stateChangedVariants) {
// if (stateChangedVariant.toMap().value("params").toMap().value("stateTypeId").toUuid() == stateTypeId) {
// QCOMPARE(stateChangedVariant.toMap().value("params").toMap().value("value").toInt(), newVal);
// found = true;
// break;
// }
// }
// QCOMPARE(found, true);
// Make sure the notification contains all the stuff we expect
QVariant loggEntryAddedVariant = checkNotification(clientSpy, "Logging.LogEntryAdded");
@ -252,7 +251,7 @@ void TestJSONRPC::stateChangeEmitsNotifications()
reply->deleteLater();
// Lets wait a max of 100ms for the notification
clientSpy.wait(100);
clientSpy.wait();
// but make sure it doesn't come
QCOMPARE(clientSpy.count(), 0);