[WebAssembly] Add WebAssembly support to llvm-symbolizer
The only thing missing for basic llvm-symbolizer support is the ability on
lib/Object to get a wasm symbol's section ID, which allows sorting and
computation of the symbols' sizes.
Also, when the WasmAsmParser switches sections on new functions, also add the
section to the list of Dwarf sections if Dwarf is being generated for assembly;
this allows writing of simple tests.
Reviewers: sbc100, jhenderson, aardappel
Differential Revision: https://reviews.llvm.org/D73246
diff --git a/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp b/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
index ea99cee..a46bf06 100644
--- a/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
+++ b/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
@@ -879,6 +879,9 @@
auto SecName = ".text." + SymName;
auto WS = getContext().getWasmSection(SecName, SectionKind::getText());
getStreamer().SwitchSection(WS);
+ // Also generate DWARF for this section if requested.
+ if (getContext().getGenDwarfForAssembly())
+ getContext().addGenDwarfSection(WS);
}
void onEndOfFunction() {