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//-----------------------------------------------------------------------------
// Name: stacktrace.h
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// 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 <sstream>
#include <Compat/platform.h>
#if PLATFORM_LINUX || PLATFORM_MACOSX
#include <Memory/allocation.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <execinfo.h>
#include <csignal>
#include <ctime>
#include <cstdlib>
#include <cstdio>
inline std::string GenerateStacktrace() {
void *array[20];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 20);
char **backtrace = backtrace_symbols(array, size);
std::stringstream ss;
for (size_t i = 0; i < size; i++) {
ss << backtrace[i] << std::endl;
}
OG_FREE(backtrace);
return ss.str();
}
#elif defined PLATFORM_WINDOWS && defined OG_DEBUG
#define NOMINMAX
#include <Windows.h>
#include <DbgHelp.h>
#include <sstream>
#include <algorithm>
inline std::string GenerateStacktrace() {
const int maxCallers = 62;
void* callerStack[maxCallers];
unsigned short frames = RtlCaptureStackBackTrace(0, maxCallers, callerStack, NULL);
IMAGEHLP_LINE64 line;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
HANDLE handle = GetCurrentProcess();
std::stringstream ss;
const static unsigned short MAX_CALLERS_SHOWN = 24;
frames = std::min(frames, MAX_CALLERS_SHOWN);
for (int i = 0; i < frames; ++i) {
DWORD whyMicrosoft;
if (SymGetLineFromAddr64(handle, (DWORD64)callerStack[i], &whyMicrosoft, &line)) {
std::string filename(line.FileName);
filename = filename.substr(filename.find_last_of("/\\") + 1);
filename = filename.substr(0, filename.find_last_of('.'));
ss << line.FileName << "(" << line.LineNumber << ")" << std::endl;
} else
ss << "Couldn't get line numbers. Possibly an external lib " << std::endl;
}
return ss.str();
}
#else
inline std::string GenerateStacktrace() {
return std::string("No stacktrace available on this platform");
}
#endif
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