Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 63 insertions, 0 deletions

diff --git a/gnu/llvm/clang/lib/Driver/ToolChains/InterfaceStubs.cpp b/gnu/llvm/clang/lib/Driver/ToolChains/InterfaceStubs.cpp
new file mode 100644
index 00000000000..8f947e79bd1
--- /dev/null
+++ b/gnu/llvm/clang/lib/Driver/ToolChains/InterfaceStubs.cpp
@@ -0,0 +1,63 @@
+//===---  InterfaceStubs.cpp - Base InterfaceStubs Implementations 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "InterfaceStubs.h"
+#include "CommonArgs.h"
+#include "clang/Driver/Compilation.h"
+#include "llvm/Support/Path.h"
+
+namespace clang {
+namespace driver {
+namespace tools {
+namespace ifstool {
+void Merger::ConstructJob(Compilation &C, const JobAction &JA,
+                          const InputInfo &Output, const InputInfoList &Inputs,
+                          const llvm::opt::ArgList &Args,
+                          const char *LinkingOutput) const {
+  std::string Merger = getToolChain().GetProgramPath(getShortName());
+  llvm::opt::ArgStringList CmdArgs;
+  CmdArgs.push_back("-action");
+  const bool WriteBin = !Args.getLastArg(options::OPT_emit_merged_ifs);
+  CmdArgs.push_back(WriteBin ? "write-bin" : "write-ifs");
+  CmdArgs.push_back("-o");
+
+  // Normally we want to write to a side-car file ending in ".ifso" so for
+  // example if `clang -emit-interface-stubs -shared -o libhello.so` were
+  // invoked then we would like to get libhello.so and libhello.ifso. If the
+  // stdout stream is given as the output file (ie `-o -`), that is the one
+  // exception where we will just append to the same filestream as the normal
+  // output.
+  SmallString<128> OutputFilename(Output.getFilename());
+  if (OutputFilename != "-") {
+    if (Args.hasArg(options::OPT_shared))
+      llvm::sys::path::replace_extension(OutputFilename,
+                                         (WriteBin ? "ifso" : "ifs"));
+    else
+      OutputFilename += (WriteBin ? ".ifso" : ".ifs");
+  }
+
+  CmdArgs.push_back(Args.MakeArgString(OutputFilename.c_str()));
+
+  // Here we append the input files. If the input files are object files, then
+  // we look for .ifs files present in the same location as the object files.
+  for (const auto &Input : Inputs) {
+    if (!Input.isFilename())
+      continue;
+    SmallString<128> InputFilename(Input.getFilename());
+    if (Input.getType() == types::TY_Object)
+      llvm::sys::path::replace_extension(InputFilename, ".ifs");
+    CmdArgs.push_back(Args.MakeArgString(InputFilename.c_str()));
+  }
+
+  C.addCommand(std::make_unique<Command>(JA, *this, Args.MakeArgString(Merger),
+                                         CmdArgs, Inputs));
+}
+} // namespace ifstool
+} // namespace tools
+} // namespace driver
+} // namespace clang