clang  14.0.0git
InterfaceStubs.cpp
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1 //===--- InterfaceStubs.cpp - Base InterfaceStubs Implementations C++ ---===//
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-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "InterfaceStubs.h"
10 #include "CommonArgs.h"
12 #include "llvm/Support/Path.h"
13 
14 namespace clang {
15 namespace driver {
16 namespace tools {
17 namespace ifstool {
19  const InputInfo &Output, const InputInfoList &Inputs,
20  const llvm::opt::ArgList &Args,
21  const char *LinkingOutput) const {
23  // TODO: Use IFS library directly in the future.
24  llvm::opt::ArgStringList CmdArgs;
25  CmdArgs.push_back("--input-format=IFS");
26  const bool WriteBin = !Args.getLastArg(options::OPT_emit_merged_ifs);
27  CmdArgs.push_back(WriteBin ? "--output-format=ELF" : "--output-format=IFS");
28  CmdArgs.push_back("-o");
29 
30  // Normally we want to write to a side-car file ending in ".ifso" so for
31  // example if `clang -emit-interface-stubs -shared -o libhello.so` were
32  // invoked then we would like to get libhello.so and libhello.ifso. If the
33  // stdout stream is given as the output file (ie `-o -`), that is the one
34  // exception where we will just append to the same filestream as the normal
35  // output.
36  SmallString<128> OutputFilename(Output.getFilename());
37  if (OutputFilename != "-") {
38  if (Args.hasArg(options::OPT_shared))
39  llvm::sys::path::replace_extension(OutputFilename,
40  (WriteBin ? "ifso" : "ifs"));
41  else
42  OutputFilename += (WriteBin ? ".ifso" : ".ifs");
43  }
44 
45  CmdArgs.push_back(Args.MakeArgString(OutputFilename.c_str()));
46 
47  // Here we append the input files. If the input files are object files, then
48  // we look for .ifs files present in the same location as the object files.
49  for (const auto &Input : Inputs) {
50  if (!Input.isFilename())
51  continue;
52  SmallString<128> InputFilename(Input.getFilename());
53  if (Input.getType() == types::TY_Object)
54  llvm::sys::path::replace_extension(InputFilename, ".ifs");
55  CmdArgs.push_back(Args.MakeArgString(InputFilename.c_str()));
56  }
57 
58  C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
59  Args.MakeArgString(Merger), CmdArgs,
60  Inputs, Output));
61 }
62 } // namespace ifstool
63 } // namespace tools
64 } // namespace driver
65 } // namespace clang
string
string(SUBSTRING ${CMAKE_CURRENT_BINARY_DIR} 0 ${PATH_LIB_START} PATH_HEAD) string(SUBSTRING $
Definition: CMakeLists.txt:22
llvm::SmallVector
Definition: LLVM.h:38
clang::driver::ToolChain::GetProgramPath
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:542
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
llvm::SmallString< 128 >
InterfaceStubs.h
clang::driver::Tool::getShortName
const char * getShortName() const
Definition: Tool.h:50
Compilation.h
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
clang::driver::Tool::getToolChain
const ToolChain & getToolChain() const
Definition: Tool.h:52
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:83
CommonArgs.h
clang
Definition: CalledOnceCheck.h:17
clang::driver::tools::ifstool::Merger
Definition: InterfaceStubs.h:19
clang::driver::tools::ifstool::Merger::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs,...
Definition: InterfaceStubs.cpp:18
clang::driver::ResponseFileSupport::None
static constexpr ResponseFileSupport None()
Returns a ResponseFileSupport indicating that response files are not supported.
Definition: Job.h:78
clang::driver::JobAction
Definition: Action.h:380