67 lines · cpp
1//===- Reproduce.cpp - Utilities for creating reproducers -----------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "lld/Common/Reproduce.h"10#include "llvm/Option/Arg.h"11#include "llvm/Support/Error.h"12#include "llvm/Support/FileSystem.h"13#include "llvm/Support/Path.h"14 15using namespace lld;16using namespace llvm;17using namespace llvm::sys;18 19// Makes a given pathname an absolute path first, and then remove20// beginning /. For example, "../foo.o" is converted to "home/john/foo.o",21// assuming that the current directory is "/home/john/bar".22// Returned string is a forward slash separated path even on Windows to avoid23// a mess with backslash-as-escape and backslash-as-path-separator.24std::string lld::relativeToRoot(StringRef path) {25 SmallString<128> abs = path;26 if (fs::make_absolute(abs))27 return std::string(path);28 path::remove_dots(abs, /*remove_dot_dot=*/true);29 30 // This is Windows specific. root_name() returns a drive letter31 // (e.g. "c:") or a UNC name (//net). We want to keep it as part32 // of the result.33 SmallString<128> res;34 StringRef root = path::root_name(abs);35 if (root.ends_with(":"))36 res = root.drop_back();37 else if (root.starts_with("//"))38 res = root.substr(2);39 40 path::append(res, path::relative_path(abs));41 return path::convert_to_slash(res);42}43 44// Quote a given string if it contains a space character.45std::string lld::quote(StringRef s) {46 if (s.contains(' '))47 return ("\"" + s + "\"").str();48 return std::string(s);49}50 51// Converts an Arg to a string representation suitable for a response file.52// To show an Arg in a diagnostic, use Arg::getAsString() instead.53std::string lld::toString(const opt::Arg &arg) {54 std::string k = std::string(arg.getSpelling());55 if (arg.getNumValues() == 0)56 return k;57 std::string v;58 for (size_t i = 0; i < arg.getNumValues(); ++i) {59 if (i > 0)60 v.push_back(' ');61 v += quote(arg.getValue(i));62 }63 if (arg.getOption().getRenderStyle() == opt::Option::RenderJoinedStyle)64 return k + v;65 return k + " " + v;66}67