
/*
 * Copyright 2011-2022 Cuberite Contributors
 *
 * 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.
 */

// StackTrace.cpp

// Implements the functions to print current stack traces

#include "Globals.h"
#include "StackTrace.h"
#ifdef _WIN32
	#include "WinStackWalker.h"
#else
	#ifdef __GLIBC__
		#include <execinfo.h>
	#endif
	#include <unistd.h>
#endif





void PrintStackTrace(void)
{
	#ifdef _WIN32
		class PrintingStackWalker:
			public WinStackWalker
		{
			virtual void OnOutput(LPCSTR szText) override
			{
				std::fputs(szText, stdout);
			}
		} sw;
		sw.ShowCallstack();
	#else
		#ifdef __GLIBC__
			// Use the backtrace() function to get and output the stackTrace:
			// Code adapted from https://stackoverflow.com/questions/77005/how-to-generate-a-stacktrace-when-my-gcc-c-app-crashes
			void * stackTrace[30];
			auto numItems = backtrace(stackTrace, ARRAYCOUNT(stackTrace));
			backtrace_symbols_fd(stackTrace, numItems, STDERR_FILENO);
		#endif
	#endif
}
