1*0b57cec5SDimitry Andric //===- Reproduce.cpp - Utilities for creating reproducers -----------------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric 9*0b57cec5SDimitry Andric #include "lld/Common/Reproduce.h" 10*0b57cec5SDimitry Andric #include "llvm/Option/Arg.h" 11*0b57cec5SDimitry Andric #include "llvm/Support/Error.h" 12*0b57cec5SDimitry Andric #include "llvm/Support/FileSystem.h" 13*0b57cec5SDimitry Andric #include "llvm/Support/Path.h" 14*0b57cec5SDimitry Andric 15*0b57cec5SDimitry Andric using namespace lld; 16*0b57cec5SDimitry Andric using namespace llvm; 17*0b57cec5SDimitry Andric using namespace llvm::sys; 18*0b57cec5SDimitry Andric 19*0b57cec5SDimitry Andric // Makes a given pathname an absolute path first, and then remove 20*0b57cec5SDimitry Andric // beginning /. For example, "../foo.o" is converted to "home/john/foo.o", 21*0b57cec5SDimitry Andric // assuming that the current directory is "/home/john/bar". 22*0b57cec5SDimitry Andric // Returned string is a forward slash separated path even on Windows to avoid 23*0b57cec5SDimitry Andric // a mess with backslash-as-escape and backslash-as-path-separator. 24*0b57cec5SDimitry Andric std::string lld::relativeToRoot(StringRef path) { 25*0b57cec5SDimitry Andric SmallString<128> abs = path; 26*0b57cec5SDimitry Andric if (fs::make_absolute(abs)) 27*0b57cec5SDimitry Andric return path; 28*0b57cec5SDimitry Andric path::remove_dots(abs, /*remove_dot_dot=*/true); 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric // This is Windows specific. root_name() returns a drive letter 31*0b57cec5SDimitry Andric // (e.g. "c:") or a UNC name (//net). We want to keep it as part 32*0b57cec5SDimitry Andric // of the result. 33*0b57cec5SDimitry Andric SmallString<128> res; 34*0b57cec5SDimitry Andric StringRef root = path::root_name(abs); 35*0b57cec5SDimitry Andric if (root.endswith(":")) 36*0b57cec5SDimitry Andric res = root.drop_back(); 37*0b57cec5SDimitry Andric else if (root.startswith("//")) 38*0b57cec5SDimitry Andric res = root.substr(2); 39*0b57cec5SDimitry Andric 40*0b57cec5SDimitry Andric path::append(res, path::relative_path(abs)); 41*0b57cec5SDimitry Andric return path::convert_to_slash(res); 42*0b57cec5SDimitry Andric } 43*0b57cec5SDimitry Andric 44*0b57cec5SDimitry Andric // Quote a given string if it contains a space character. 45*0b57cec5SDimitry Andric std::string lld::quote(StringRef s) { 46*0b57cec5SDimitry Andric if (s.contains(' ')) 47*0b57cec5SDimitry Andric return ("\"" + s + "\"").str(); 48*0b57cec5SDimitry Andric return s; 49*0b57cec5SDimitry Andric } 50*0b57cec5SDimitry Andric 51*0b57cec5SDimitry Andric // Converts an Arg to a string representation suitable for a response file. 52*0b57cec5SDimitry Andric // To show an Arg in a diagnostic, use Arg::getAsString() instead. 53*0b57cec5SDimitry Andric std::string lld::toString(const opt::Arg &arg) { 54*0b57cec5SDimitry Andric std::string k = arg.getSpelling(); 55*0b57cec5SDimitry Andric if (arg.getNumValues() == 0) 56*0b57cec5SDimitry Andric return k; 57*0b57cec5SDimitry Andric std::string v = quote(arg.getValue()); 58*0b57cec5SDimitry Andric if (arg.getOption().getRenderStyle() == opt::Option::RenderJoinedStyle) 59*0b57cec5SDimitry Andric return k + v; 60*0b57cec5SDimitry Andric return k + " " + v; 61*0b57cec5SDimitry Andric } 62