implemented simple crash handler

2020-02-28 13:21:32 +11:00
parent d1681bc294
commit c32ed5955c
8 changed files with 251 additions and 1 deletions
@@ -0,0 +1,117 @@
+#include "crashhandler.h"
+
+#include <QDir>
+#include <QFile>
+#include <QProcess>
+#include <QStandardPaths>
+#include <QTextStream>
+#include <QtGlobal>
+
+#ifdef Q_OS_WINDOWS
+#include <Windows.h>
+#include <DbgHelp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+
+void crash_handler(int sig) {
+  QString log_path = QDir(QStandardPaths::writableLocation(QStandardPaths::TempLocation)).filePath("olive_crash");
+  QFile output(log_path);
+
+  output.open(QFile::WriteOnly);
+  QTextStream ostream(&output);
+
+  ostream << "Signal: " << sig << "\n\n";
+
+#if defined(Q_OS_WINDOWS)
+  // Use Windows stackwalk API
+  HANDLE process = GetCurrentProcess();
+  HANDLE thread = GetCurrentThread();
+
+  CONTEXT context;
+  memset(&context, 0, sizeof(CONTEXT));
+  context.ContextFlags = CONTEXT_FULL;
+  RtlCaptureContext(&context);
+
+  SymInitialize(process, NULL, TRUE);
+
+  DWORD image;
+  STACKFRAME64 stackframe;
+  ZeroMemory(&stackframe, sizeof(STACKFRAME64));
+
+#ifdef _M_IX86
+  image = IMAGE_FILE_MACHINE_I386;
+  stackframe.AddrPC.Offset = context.Eip;
+  stackframe.AddrPC.Mode = AddrModeFlat;
+  stackframe.AddrFrame.Offset = context.Ebp;
+  stackframe.AddrFrame.Mode = AddrModeFlat;
+  stackframe.AddrStack.Offset = context.Esp;
+  stackframe.AddrStack.Mode = AddrModeFlat;
+#elif _M_X64
+  image = IMAGE_FILE_MACHINE_AMD64;
+  stackframe.AddrPC.Offset = context.Rip;
+  stackframe.AddrPC.Mode = AddrModeFlat;
+  stackframe.AddrFrame.Offset = context.Rsp;
+  stackframe.AddrFrame.Mode = AddrModeFlat;
+  stackframe.AddrStack.Offset = context.Rsp;
+  stackframe.AddrStack.Mode = AddrModeFlat;
+#elif _M_IA64
+  image = IMAGE_FILE_MACHINE_IA64;
+  stackframe.AddrPC.Offset = context.StIIP;
+  stackframe.AddrPC.Mode = AddrModeFlat;
+  stackframe.AddrFrame.Offset = context.IntSp;
+  stackframe.AddrFrame.Mode = AddrModeFlat;
+  stackframe.AddrBStore.Offset = context.RsBSP;
+  stackframe.AddrBStore.Mode = AddrModeFlat;
+  stackframe.AddrStack.Offset = context.IntSp;
+  stackframe.AddrStack.Mode = AddrModeFlat;
+#endif
+
+  for (int i = 0; i < 50; i++) {
+
+    BOOL result = StackWalk64(
+          image, process, thread,
+          &stackframe, &context, NULL,
+          SymFunctionTableAccess64, SymGetModuleBase64, NULL);
+
+    if (!result) { break; }
+
+    char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(TCHAR)];
+    PSYMBOL_INFO symbol = (PSYMBOL_INFO)buffer;
+    symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
+    symbol->MaxNameLen = MAX_SYM_NAME;
+
+    DWORD64 displacement = 0;
+
+    ostream << "[" << i << "] ";
+
+    if (SymFromAddr(process, stackframe.AddrPC.Offset, &displacement, symbol)) {
+      ostream << symbol->Name;
+      //printf("[%i] %s\n", i, symbol->Name);
+    } else {
+      ostream << "???";
+      //printf("[%i] ???\n", i);
+    }
+
+    ostream << "\n";
+  }
+
+  SymCleanup(process);
+#elif defined(Q_OS_LINUX)
+  void *array[10];
+  size_t size;
+
+  // get void*'s for all entries on the stack
+  size = backtrace(array, 10);
+
+  // print out all the frames to stderr
+  fprintf(stderr, "Error: signal %d:\n", sig);
+  backtrace_symbols_fd(array, size, STDERR_FILENO);
+#endif
+
+  output.close();
+
+  QProcess::startDetached(QStringLiteral("crashhandler"), {log_path});
+
+  exit(1);
+}