113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
//===-- Process.cpp - Implement OS Process Concept --------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the operating system Process concept.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Process.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/Config/config.h"
|
|
#include "llvm/Config/llvm-config.h"
|
|
#include "llvm/Support/CrashRecoveryContext.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/Program.h"
|
|
|
|
#include <stdlib.h> // for _Exit
|
|
|
|
using namespace llvm;
|
|
using namespace sys;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
//=== WARNING: Implementation here must contain only TRULY operating system
|
|
//=== independent code.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Optional<std::string>
|
|
Process::FindInEnvPath(StringRef EnvName, StringRef FileName, char Separator) {
|
|
return FindInEnvPath(EnvName, FileName, {}, Separator);
|
|
}
|
|
|
|
Optional<std::string> Process::FindInEnvPath(StringRef EnvName,
|
|
StringRef FileName,
|
|
ArrayRef<std::string> IgnoreList,
|
|
char Separator) {
|
|
assert(!path::is_absolute(FileName));
|
|
Optional<std::string> FoundPath;
|
|
Optional<std::string> OptPath = Process::GetEnv(EnvName);
|
|
if (!OptPath.hasValue())
|
|
return FoundPath;
|
|
|
|
const char EnvPathSeparatorStr[] = {Separator, '\0'};
|
|
SmallVector<StringRef, 8> Dirs;
|
|
SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
|
|
|
|
for (StringRef Dir : Dirs) {
|
|
if (Dir.empty())
|
|
continue;
|
|
|
|
if (any_of(IgnoreList, [&](StringRef S) { return fs::equivalent(S, Dir); }))
|
|
continue;
|
|
|
|
SmallString<128> FilePath(Dir);
|
|
path::append(FilePath, FileName);
|
|
if (fs::exists(Twine(FilePath))) {
|
|
FoundPath = std::string(FilePath.str());
|
|
break;
|
|
}
|
|
}
|
|
|
|
return FoundPath;
|
|
}
|
|
|
|
|
|
#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
|
|
|
|
#define ALLCOLORS(FGBG,BOLD) {\
|
|
COLOR(FGBG, "0", BOLD),\
|
|
COLOR(FGBG, "1", BOLD),\
|
|
COLOR(FGBG, "2", BOLD),\
|
|
COLOR(FGBG, "3", BOLD),\
|
|
COLOR(FGBG, "4", BOLD),\
|
|
COLOR(FGBG, "5", BOLD),\
|
|
COLOR(FGBG, "6", BOLD),\
|
|
COLOR(FGBG, "7", BOLD)\
|
|
}
|
|
|
|
static const char colorcodes[2][2][8][10] = {
|
|
{ ALLCOLORS("3",""), ALLCOLORS("3","1;") },
|
|
{ ALLCOLORS("4",""), ALLCOLORS("4","1;") }
|
|
};
|
|
|
|
// A CMake option controls wheter we emit core dumps by default. An application
|
|
// may disable core dumps by calling Process::PreventCoreFiles().
|
|
static bool coreFilesPrevented = !LLVM_ENABLE_CRASH_DUMPS;
|
|
|
|
bool Process::AreCoreFilesPrevented() { return coreFilesPrevented; }
|
|
|
|
LLVM_ATTRIBUTE_NORETURN
|
|
void Process::Exit(int RetCode, bool NoCleanup) {
|
|
if (CrashRecoveryContext *CRC = CrashRecoveryContext::GetCurrent())
|
|
CRC->HandleExit(RetCode);
|
|
|
|
if (NoCleanup)
|
|
_Exit(RetCode);
|
|
else
|
|
::exit(RetCode);
|
|
}
|
|
|
|
// Include the platform-specific parts of this class.
|
|
#ifdef LLVM_ON_UNIX
|
|
#include "Unix/Process.inc"
|
|
#endif
|
|
#ifdef _WIN32
|
|
#include "Windows/Process.inc"
|
|
#endif
|