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acf3c1586e
When cross compiling with clang-cl, clang splits the INCLUDE env variable around semicolons (clang/lib/Driver/ToolChains/MSVC.cpp, MSVCToolChain::AddClangSystemIncludeArgs) and lld splits the LIB variable similarly (lld/COFF/Driver.cpp, LinkerDriver::addLibSearchPaths). Therefore, the consensus for cross compilation with clang-cl and lld-link seems to be to use semicolons, despite path lists normally being separated by colons on unix and EnvPathSeparator being set to that. Therefore, handle the LIB variable similarly in Clang, when handling lib file arguments when driving linking via Clang. This fixes commands like "clang-cl test.c -Fetest.exe kernel32.lib" in a cross compilation setting. Normally, most users call (lld-)link directly, but meson happens to use this command syntax for has_function() tests. Reapply: Change Program.h to define procid_t as ::pid_t. When included in lldb/unittests/Host/NativeProcessProtocolTest.cpp, it is included after an lldb namespace containing an lldb::pid_t typedef, followed later by a "using namespace lldb;". Previously, Program.h wasn't included in this translation unit, but now it ends up included transitively from Process.h. Differential Revision: https://reviews.llvm.org/D88002
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
//===-- Process.cpp - Implement OS Process Concept --------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the operating system Process concept.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Process.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Config/config.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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using namespace llvm;
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using namespace sys;
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only TRULY operating system
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//=== independent code.
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//===----------------------------------------------------------------------===//
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Optional<std::string>
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Process::FindInEnvPath(StringRef EnvName, StringRef FileName, char Separator) {
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return FindInEnvPath(EnvName, FileName, {}, Separator);
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}
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Optional<std::string> Process::FindInEnvPath(StringRef EnvName,
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StringRef FileName,
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ArrayRef<std::string> IgnoreList,
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char Separator) {
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assert(!path::is_absolute(FileName));
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Optional<std::string> FoundPath;
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Optional<std::string> OptPath = Process::GetEnv(EnvName);
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if (!OptPath.hasValue())
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return FoundPath;
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const char EnvPathSeparatorStr[] = {Separator, '\0'};
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SmallVector<StringRef, 8> Dirs;
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SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
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for (StringRef Dir : Dirs) {
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if (Dir.empty())
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continue;
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if (any_of(IgnoreList, [&](StringRef S) { return fs::equivalent(S, Dir); }))
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continue;
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SmallString<128> FilePath(Dir);
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path::append(FilePath, FileName);
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if (fs::exists(Twine(FilePath))) {
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FoundPath = std::string(FilePath.str());
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break;
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}
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}
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return FoundPath;
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}
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#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
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#define ALLCOLORS(FGBG,BOLD) {\
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COLOR(FGBG, "0", BOLD),\
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COLOR(FGBG, "1", BOLD),\
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COLOR(FGBG, "2", BOLD),\
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COLOR(FGBG, "3", BOLD),\
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COLOR(FGBG, "4", BOLD),\
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COLOR(FGBG, "5", BOLD),\
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COLOR(FGBG, "6", BOLD),\
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COLOR(FGBG, "7", BOLD)\
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}
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static const char colorcodes[2][2][8][10] = {
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{ ALLCOLORS("3",""), ALLCOLORS("3","1;") },
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{ ALLCOLORS("4",""), ALLCOLORS("4","1;") }
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};
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// A CMake option controls wheter we emit core dumps by default. An application
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// may disable core dumps by calling Process::PreventCoreFiles().
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static bool coreFilesPrevented = !LLVM_ENABLE_CRASH_DUMPS;
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bool Process::AreCoreFilesPrevented() { return coreFilesPrevented; }
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LLVM_ATTRIBUTE_NORETURN
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void Process::Exit(int RetCode) {
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if (CrashRecoveryContext *CRC = CrashRecoveryContext::GetCurrent())
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CRC->HandleExit(RetCode);
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::exit(RetCode);
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}
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// Include the platform-specific parts of this class.
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#ifdef LLVM_ON_UNIX
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#include "Unix/Process.inc"
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#endif
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#ifdef _WIN32
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#include "Windows/Process.inc"
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#endif
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