From d9ce340fb17a24dca28e0018f5537846841368ab Mon Sep 17 00:00:00 2001
From: Sam Clegg <sbc@chromium.org>
Date: Tue, 4 Oct 2022 22:19:35 -0700
Subject: Strip em_js_deps exports (#5109)

These are only needed for the metadata extraction in emcc.
---
 src/passes/PostEmscripten.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/passes/PostEmscripten.cpp')

diff --git a/src/passes/PostEmscripten.cpp b/src/passes/PostEmscripten.cpp
index e17c529bb..ded949859 100644
--- a/src/passes/PostEmscripten.cpp
+++ b/src/passes/PostEmscripten.cpp
@@ -185,6 +185,7 @@ static void removeData(Module& wasm,
 }
 
 cashew::IString EM_JS_PREFIX("__em_js__");
+cashew::IString EM_JS_DEPS_PREFIX("__em_lib_deps_");
 
 struct EmJsWalker : public PostWalker<EmJsWalker> {
   std::vector<Export> toRemove;
@@ -193,6 +194,9 @@ struct EmJsWalker : public PostWalker<EmJsWalker> {
     if (curr->name.startsWith(EM_JS_PREFIX.str)) {
       toRemove.push_back(*curr);
     }
+    if (curr->name.startsWith(EM_JS_DEPS_PREFIX.str)) {
+      toRemove.push_back(*curr);
+    }
   }
 };
 
@@ -212,10 +216,14 @@ struct PostEmscripten : public Pass {
 
     removeData(module, segmentOffsets, "__start_em_asm", "__stop_em_asm");
     removeData(module, segmentOffsets, "__start_em_js", "__stop_em_js");
+    removeData(
+      module, segmentOffsets, "__start_em_lib_deps", "__stop_em_lib_deps");
     module.removeExport("__start_em_asm");
     module.removeExport("__stop_em_asm");
     module.removeExport("__start_em_js");
     module.removeExport("__stop_em_js");
+    module.removeExport("__start_em_lib_deps");
+    module.removeExport("__stop_em_lib_deps");
   }
 
   void removeEmJsExports(Module& module) {
-- 
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