cppcheck/cli/main.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2022 Cppcheck team.
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*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
*
* @mainpage Cppcheck
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* @version 2.8
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*
* @section overview_sec Overview
* Cppcheck is a simple tool for static analysis of C/C++ code.
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*
* When you write a checker you have access to:
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* - %Token list - the tokenized code
* - Syntax tree - Syntax tree of each expression
* - %SymbolDatabase - Information about all types/variables/functions/etc
* in the current translation unit
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* - Library - Configuration of functions/types
* - Value flow analysis - Data flow analysis that determine possible values for each token
*
* Use --debug-normal on the command line to see debug output for the token list
* and the syntax tree. If both --debug-normal and --verbose is used, the symbol
* database is also written.
*
* The checks are written in C++.
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*
* @section detailed_overview_sec Detailed overview
* This happens when you execute cppcheck from the command line:
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* -# CppCheckExecutor::check this function executes the Cppcheck
* -# CmdLineParser::parseFromArgs parse command line arguments
* - The Settings class is used to maintain settings
* - Use FileLister and command line arguments to get files to check
* -# ThreadExecutor create more instances of CppCheck if needed
* -# CppCheck::check is called for each file. It checks a single file
* -# Preprocess the file (through Preprocessor)
* - Comments are removed
* - Macros are expanded
* -# Tokenize the file (see Tokenizer)
* -# Run the runChecks of all check classes.
* -# Simplify the tokenlist (Tokenizer::simplifyTokenList2)
* -# Run the runSimplifiedChecks of all check classes
*
* When errors are found, they are reported back to the CppCheckExecutor through the ErrorLogger interface.
*/
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#include "cppcheckexecutor.h"
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#ifdef NDEBUG
#include "errortypes.h"
#include <cstdlib>
#include <exception>
#include <iostream>
#include <string>
#endif
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#ifdef _WIN32
#include <windows.h>
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static char exename[1024] = {0};
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#endif
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#if defined(__APPLE__)
#include <mach-o/dyld.h>
static char exename[1024] = {0};
#endif
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/**
* Main function of cppcheck
*
* @param argc Passed to CppCheck::parseFromArgs()
* @param argv Passed to CppCheck::parseFromArgs()
* @return What CppCheckExecutor::check() returns.
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*/
int main(int argc, char* argv[])
{
// MS Visual C++ memory leak debug tracing
#if defined(_MSC_VER) && defined(_DEBUG)
_CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
#endif
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CppCheckExecutor exec;
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#ifdef _WIN32
GetModuleFileNameA(nullptr, exename, sizeof(exename)/sizeof(exename[0])-1);
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argv[0] = exename;
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#endif
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#if defined(__APPLE__)
uint32_t size = sizeof(exename);
_NSGetExecutablePath(exename, &size);
argv[0] = exename;
#endif
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// *INDENT-OFF*
#ifdef NDEBUG
try {
#endif
return exec.check(argc, argv);
#ifdef NDEBUG
} catch (const InternalError& e) {
std::cout << e.errorMessage << std::endl;
} catch (const std::exception& error) {
std::cout << error.what() << std::endl;
} catch (...) {
std::cout << "Unknown exception" << std::endl;
}
return EXIT_FAILURE;
#endif
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// *INDENT-ON*
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}