+//===-- MachOUtils.h - Mach-o specific helpers for dsymutil --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MachOUtils.h"
+#include "dsymutil.h"
+#include "llvm/Support/FileUtilities.h"
+#include "llvm/Support/Program.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+namespace dsymutil {
+namespace MachOUtils {
+
+static bool runLipo(SmallVectorImpl<const char *> &Args) {
+ auto Path = sys::findProgramByName("lipo");
+
+ if (!Path) {
+ errs() << "error: lipo: " << Path.getError().message() << "\n";
+ return false;
+ }
+
+ std::string ErrMsg;
+ int result =
+ sys::ExecuteAndWait(*Path, Args.data(), nullptr, nullptr, 0, 0, &ErrMsg);
+ if (result) {
+ errs() << "error: lipo: " << ErrMsg << "\n";
+ return false;
+ }
+
+ return true;
+}
+
+bool generateUniversalBinary(SmallVectorImpl<ArchAndFilename> &ArchFiles,
+ StringRef OutputFileName,
+ const LinkOptions &Options) {
+ // No need to merge one file into a universal fat binary. First, try
+ // to move it (rename) to the final location. If that fails because
+ // of cross-device link issues then copy and delete.
+ if (ArchFiles.size() == 1) {
+ StringRef From(ArchFiles.front().Path);
+ if (sys::fs::rename(From, OutputFileName)) {
+ if (std::error_code EC = sys::fs::copy_file(From, OutputFileName)) {
+ errs() << "error: while copying " << From << " to " << OutputFileName
+ << ": " << EC.message() << "\n";
+ return false;
+ }
+ sys::fs::remove(From);
+ }
+ return true;
+ }
+
+ SmallVector<const char *, 8> Args;
+ Args.push_back("lipo");
+ Args.push_back("-create");
+
+ for (auto &Thin : ArchFiles)
+ Args.push_back(Thin.Path.c_str());
+
+ // Align segments to match dsymutil-classic alignment
+ for (auto &Thin : ArchFiles) {
+ Args.push_back("-segalign");
+ Args.push_back(Thin.Arch.c_str());
+ Args.push_back("20");
+ }
+
+ Args.push_back("-output");
+ Args.push_back(OutputFileName.data());
+ Args.push_back(nullptr);
+
+ if (Options.Verbose) {
+ outs() << "Running lipo\n";
+ for (auto Arg : Args)
+ outs() << ' ' << ((Arg == nullptr) ? "\n" : Arg);
+ }
+
+ return Options.NoOutput ? true : runLipo(Args);
+}
+}
+}
+}
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