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//===-- driver/tool.h - External tool invocation helpers --------*- C++ -*-===//
//
// LDC – the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
//
// Functionality for invoking external tools executables, such as the system
// assembler, linker, ...
//
//===----------------------------------------------------------------------===//
#pragma once
#include <vector>
#include <string>
#include "llvm/Support/CommandLine.h"
namespace opts {
extern llvm::cl::opt<std::string> linker;
}
std::string getGcc();
void appendTargetArgsForGcc(std::vector<std::string> &args);
std::string getProgram(const char *name,
const llvm::cl::opt<std::string> *opt = nullptr,
const char *envVar = nullptr);
void createDirectoryForFileOrFail(llvm::StringRef fileName);
// NB: `args` must outlive the returned vector!
std::vector<const char *> getFullArgs(const char *tool,
const std::vector<std::string> &args,
bool printVerbose);
int executeToolAndWait(const std::string &tool,
const std::vector<std::string> &args,
bool verbose = false);
#ifdef _WIN32
namespace windows {
// Returns true if a usable MSVC installation is available.
bool isMsvcAvailable();
struct MsvcEnvironmentScope {
// Tries to set up the MSVC environment variables for the current process and
// returns true if successful. The original environment is restored on
// destruction.
bool setup();
~MsvcEnvironmentScope();
private:
// for each changed env var: name & original value
std::vector<std::pair<std::wstring, wchar_t *>> rollback;
};
}
#endif
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