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[WebAssembly] Add wasm support for llvm-readobj

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Create a WasmDumper subclass of ObjDumper to support Webassembly binary
files.

Patch by Sam Clegg

Differential Revision: https://reviews.llvm.org/D27355

llvm-svn: 293569
This commit is contained in:
Derek Schuff
2017-01-30 23:30:52 +00:00
parent 642a2365fb
commit 6d76b7b455
10 changed files with 165 additions and 8 deletions
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11
llvm/lib/Object/WasmObjectFile.cpp
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@@ -83,16 +83,17 @@ WasmObjectFile::WasmObjectFile(MemoryBufferRef Buffer, Error &Err)
while (Ptr < Eof) {
if ((Err = readSection(Sec, Ptr, getPtr(0))))
return;
if (Sec.Type == wasm::WASM_SEC_USER) {
if ((Err = parseUserSection(Sec, Sec.Content.data(), Sec.Content.size())))
if (Sec.Type == wasm::WASM_SEC_CUSTOM) {
if ((Err =
parseCustomSection(Sec, Sec.Content.data(), Sec.Content.size())))
return;
}
Sections.push_back(Sec);
}
}
Error WasmObjectFile::parseUserSection(wasm::WasmSection &Sec,
const uint8_t *Ptr, size_t Length) {
Error WasmObjectFile::parseCustomSection(wasm::WasmSection &Sec,
const uint8_t *Ptr, size_t Length) {
Sec.Name = readString(Ptr);
return Error::success();
}
@@ -186,7 +187,7 @@ std::error_code WasmObjectFile::getSectionName(DataRefImpl Sec,
ECase(ELEM);
ECase(CODE);
ECase(DATA);
case wasm::WASM_SEC_USER:
case wasm::WASM_SEC_CUSTOM:
Res = S.Name;
break;
default: