[WebAssembly] Output functions individually

The code section is now written out one function
at a time rather than all the functions in a given
objects being serialized at once.

This change lays the groundwork for supporting
--gc-sections.

Differential Revision: https://reviews.llvm.org/D41315

llvm-svn: 322138

1 files changed, 4 insertions, 2 deletions

diff --git a/lld/wasm/SymbolTable.h b/lld/wasm/SymbolTable.h
index fbb74ed1479..037fea9b67d 100644
--- a/lld/wasm/SymbolTable.h
+++ b/lld/wasm/SymbolTable.h
@@ -50,8 +50,10 @@ public:
   Symbol *find(StringRef Name);
 
   Symbol *addDefined(InputFile *F, const WasmSymbol *Sym,
-                     const InputSegment *Segment = nullptr);
-  Symbol *addUndefined(InputFile *F, const WasmSymbol *Sym);
+                     const InputSegment *Segment = nullptr,
+                     InputFunction *Function = nullptr);
+  Symbol *addUndefined(InputFile *F, const WasmSymbol *Sym,
+                       const WasmSignature *Signature = nullptr);
   Symbol *addUndefinedFunction(StringRef Name, const WasmSignature *Type);
   Symbol *addDefinedGlobal(StringRef Name);
   void addLazy(ArchiveFile *F, const Archive::Symbol *Sym);