Correctly update .debug_addr DWARF section.

CHANGELOG.md

@@ -15,6 +15,8 @@ full changeset diff at the end of each section.
 Current Trunk
 -------------
 
+- `.debug_addr` sections (pre-DWARFv5) are now updated correctly when
+  DWARF mode is enabled.
 - `RefFunc` C and JS API constructors (`BinaryenRefFunc` and `ref.func`
   respectively) now take an extra `type` parameter, similar to `RefNull`. This
   is necessary for typed function references support.

src/wasm/wasm-debug.cpp

@@ -1045,6 +1045,19 @@ static void updateLoc(llvm::DWARFYAML::Data& yaml,
   }
 }
 
+static void updateAddr(llvm::DWARFYAML::Data& yaml,
+                       const LocationUpdater& locationUpdater) {
+  for (auto& addrTable : yaml.DebugAddr) {
+    for (auto& addr : addrTable.Addrs) {
+      BinaryLocation start = addr, newStart = 0;
+      if (!isTombstone(start)) {
+        newStart = locationUpdater.getNewStart(start);
+      }
+      addr = newStart;
+    }
+  }
+}
+
 void writeDWARFSections(Module& wasm, const BinaryLocations& newLocations) {
   BinaryenDWARFInfo info(wasm);
 
@@ -1064,6 +1077,8 @@ void writeDWARFSections(Module& wasm, const BinaryLocations& newLocations) {
 
   updateLoc(data, locationUpdater);
 
+  updateAddr(data, locationUpdater);
+
   // Convert to binary sections.
   auto newSections =
     EmitDebugSections(data, false /* EmitFixups for debug_info */);