diff --git a/llvm/include/llvm/Object/Wasm.h b/llvm/include/llvm/Object/Wasm.h
--- a/llvm/include/llvm/Object/Wasm.h
+++ b/llvm/include/llvm/Object/Wasm.h
@@ -168,6 +168,7 @@
   uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
   Expected<SymbolRef::Type> getSymbolType(DataRefImpl Symb) const override;
   Expected<section_iterator> getSymbolSection(DataRefImpl Symb) const override;
+  uint32_t getSymbolSectionId(SymbolRef Sym) const;
 
   // Overrides from SectionRef.
   void moveSectionNext(DataRefImpl &Sec) const override;
@@ -229,6 +230,7 @@
 
   const WasmSection &getWasmSection(DataRefImpl Ref) const;
   const wasm::WasmRelocation &getWasmRelocation(DataRefImpl Ref) const;
+  uint32_t getSymbolSectionIdImpl(const WasmSymbol &Symb) const;
 
   Error parseSection(WasmSection &Sec);
   Error parseCustomSection(WasmSection &Sec, ReadContext &Ctx);
diff --git a/llvm/lib/Object/SymbolSize.cpp b/llvm/lib/Object/SymbolSize.cpp
--- a/llvm/lib/Object/SymbolSize.cpp
+++ b/llvm/lib/Object/SymbolSize.cpp
@@ -11,6 +11,7 @@
 #include "llvm/Object/COFF.h"
 #include "llvm/Object/ELFObjectFile.h"
 #include "llvm/Object/MachO.h"
+#include "llvm/Object/Wasm.h"
 
 using namespace llvm;
 using namespace object;
@@ -27,12 +28,17 @@
 static unsigned getSectionID(const ObjectFile &O, SectionRef Sec) {
   if (auto *M = dyn_cast<MachOObjectFile>(&O))
     return M->getSectionID(Sec);
+  if (const auto *M = dyn_cast<WasmObjectFile>(&O))
+    return Sec.getIndex();
+
   return cast<COFFObjectFile>(O).getSectionID(Sec);
 }
 
 static unsigned getSymbolSectionID(const ObjectFile &O, SymbolRef Sym) {
   if (auto *M = dyn_cast<MachOObjectFile>(&O))
     return M->getSymbolSectionID(Sym);
+  if (const auto *M = dyn_cast<WasmObjectFile>(&O))
+    return M->getSymbolSectionId(Sym);
   return cast<COFFObjectFile>(O).getSymbolSectionID(Sym);
 }
 
diff --git a/llvm/lib/Object/WasmObjectFile.cpp b/llvm/lib/Object/WasmObjectFile.cpp
--- a/llvm/lib/Object/WasmObjectFile.cpp
+++ b/llvm/lib/Object/WasmObjectFile.cpp
@@ -1365,26 +1365,30 @@
     return section_end();
 
   DataRefImpl Ref;
+  Ref.d.a = getSymbolSectionIdImpl(Sym);
+  return section_iterator(SectionRef(Ref, this));
+}
+
+uint32_t WasmObjectFile::getSymbolSectionId(SymbolRef Symb) const {
+  const WasmSymbol &Sym = getWasmSymbol(Symb);
+  return getSymbolSectionIdImpl(Sym);
+}
+
+uint32_t WasmObjectFile::getSymbolSectionIdImpl(const WasmSymbol &Sym) const {
   switch (Sym.Info.Kind) {
   case wasm::WASM_SYMBOL_TYPE_FUNCTION:
-    Ref.d.a = CodeSection;
-    break;
+    return CodeSection;
   case wasm::WASM_SYMBOL_TYPE_GLOBAL:
-    Ref.d.a = GlobalSection;
-    break;
+    return GlobalSection;
   case wasm::WASM_SYMBOL_TYPE_DATA:
-    Ref.d.a = DataSection;
-    break;
+    return DataSection;
   case wasm::WASM_SYMBOL_TYPE_SECTION:
-    Ref.d.a = Sym.Info.ElementIndex;
-    break;
+    return Sym.Info.ElementIndex;
   case wasm::WASM_SYMBOL_TYPE_EVENT:
-    Ref.d.a = EventSection;
-    break;
+    return EventSection;
   default:
     llvm_unreachable("Unknown WasmSymbol::SymbolType");
   }
-  return section_iterator(SectionRef(Ref, this));
 }
 
 void WasmObjectFile::moveSectionNext(DataRefImpl &Sec) const { Sec.d.a++; }
diff --git a/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp b/llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
--- 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() {
diff --git a/llvm/test/tools/llvm-symbolizer/wasm-basic.s b/llvm/test/tools/llvm-symbolizer/wasm-basic.s
new file mode 100644
--- /dev/null
+++ b/llvm/test/tools/llvm-symbolizer/wasm-basic.s
@@ -0,0 +1,23 @@
+# REQUIRES: webassembly-registered-target
+# RUN: llvm-mc -triple=wasm32-unknown-unknown -filetype=obj %s -o %t.o -g
+       
+foo:
+    .functype foo () -> ()
+    nop
+    end_function
+
+bar:
+    .functype bar (i32) -> (i32)
+    return
+    end_function
+
+# RUN: llvm-symbolizer -e %t.o 3 4 7 8 | FileCheck %s
+## Byte 1 is the function length and 2 is the locals declaration.
+## Currently no line corresponds to them.
+## TODO: create a loc for .functype?
+
+## Test 2 functions to ensure wasm's function-sections system works.
+# CHECK: wasm-basic.s:7:0
+# CHECK: wasm-basic.s:8:0
+# CHECK: wasm-basic.s:12:0
+# CHECK: wasm-basic.s:13:0