Reland: [WebAssembly] Add __start_/_stop_ symbols for data sections
This is a reland of rL361235.
Fixes https://bugs.llvm.org/show_bug.cgi?id=41565
Differential Revision: https://reviews.llvm.org/D61876
llvm-svn: 361476
diff --git a/lld/wasm/SymbolTable.cpp b/lld/wasm/SymbolTable.cpp
index 1a16b63..ce1aa51 100644
--- a/lld/wasm/SymbolTable.cpp
+++ b/lld/wasm/SymbolTable.cpp
@@ -198,6 +198,17 @@
Flags, nullptr, Function);
}
+DefinedData *SymbolTable::addOptionalDataSymbol(StringRef Name, uint32_t Value,
+ uint32_t Flags) {
+ Symbol *S = find(Name);
+ if (!S || S->isDefined())
+ return nullptr;
+ LLVM_DEBUG(dbgs() << "addOptionalDataSymbol: " << Name << "\n");
+ auto *rtn = replaceSymbol<DefinedData>(S, Name, Flags);
+ rtn->setVirtualAddress(Value);
+ return rtn;
+}
+
DefinedData *SymbolTable::addSyntheticDataSymbol(StringRef Name,
uint32_t Flags) {
LLVM_DEBUG(dbgs() << "addSyntheticDataSymbol: " << Name << "\n");