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5918b7a03d
Currently, only emitting the ELF header is supported (no sections or segments). The ELFYAML code organization is broadly similar to the COFFYAML code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183711 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
//===- yaml2obj - Convert YAML to a binary object file --------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This program takes a YAML description of an object file and outputs the
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// binary equivalent.
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//
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// This is used for writing tests that require binary files.
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//
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//===----------------------------------------------------------------------===//
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#include "yaml2obj.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Support/system_error.h"
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using namespace llvm;
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static cl::opt<std::string>
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Input(cl::Positional, cl::desc("<input>"), cl::init("-"));
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// TODO: The "right" way to tell what kind of object file a given YAML file
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// corresponds to is to look at YAML "tags" (e.g. `!Foo`). Then, different
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// tags (`!ELF`, `!COFF`, etc.) would be used to discriminate between them.
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// Interpreting the tags is needed eventually for when writing test cases,
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// so that we can e.g. have `!Archive` contain a sequence of `!ELF`, and
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// just Do The Right Thing. However, interpreting these tags and acting on
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// them appropriately requires some work in the YAML parser and the YAMLIO
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// library.
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enum YAMLObjectFormat {
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YOF_COFF,
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YOF_ELF
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};
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cl::opt<YAMLObjectFormat> Format(
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"format",
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cl::desc("Interpret input as this type of object file"),
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cl::values(
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clEnumValN(YOF_COFF, "coff", "COFF object file format"),
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clEnumValN(YOF_ELF, "elf", "ELF object file format"),
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clEnumValEnd));
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int main(int argc, char **argv) {
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cl::ParseCommandLineOptions(argc, argv);
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sys::PrintStackTraceOnErrorSignal();
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PrettyStackTraceProgram X(argc, argv);
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llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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OwningPtr<MemoryBuffer> Buf;
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if (MemoryBuffer::getFileOrSTDIN(Input, Buf))
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return 1;
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if (Format == YOF_COFF) {
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return yaml2coff(outs(), Buf.get());
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} else if (Format == YOF_ELF) {
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return yaml2elf(outs(), Buf.get());
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} else {
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errs() << "Not yet implemented\n";
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return 1;
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}
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}
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