clang 17.0.0git
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
14namespace clang {
15namespace driver {
16namespace tools {
17namespace 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
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
const char * getFilename() const
Definition: InputInfo.h:83
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:664
const ToolChain & getToolChain() const
Definition: Tool.h:52
const char * getShortName() const
Definition: Tool.h:50
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,...
@ C
Languages that the frontend can parse and compile.
static constexpr ResponseFileSupport None()
Returns a ResponseFileSupport indicating that response files are not supported.
Definition: Job.h:78