From a182b4fd1b26517a5de3e4f83acdea1e8297cbae Mon Sep 17 00:00:00 2001
From: mathetake <takeshi@tetrate.io>
Date: Wed, 28 Oct 2020 15:02:56 +0900
Subject: [PATCH] wasm: enable WAVM's stack unwinding feature

Signed-off-by: mathetake <takeshi@tetrate.io>
---
 bazel/foreign_cc/BUILD | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bazel/foreign_cc/BUILD b/bazel/foreign_cc/BUILD
index 365375e84cc04..43dbfe3459aeb 100644
--- a/bazel/foreign_cc/BUILD
+++ b/bazel/foreign_cc/BUILD
@@ -318,7 +318,7 @@ envoy_cmake_external(
         "LLVM_DIR": "$EXT_BUILD_DEPS/copy_llvm/llvm/lib/cmake/llvm",
         "WAVM_ENABLE_STATIC_LINKING": "on",
         "WAVM_ENABLE_RELEASE_ASSERTS": "on",
-        "WAVM_ENABLE_UNWIND": "no",
+        "WAVM_ENABLE_UNWIND": "on",
         # Workaround for the issue with statically linked libstdc++
         # using -l:libstdc++.a.
         "CMAKE_CXX_FLAGS": "-lstdc++ -Wno-unused-command-line-argument",
@@ -335,6 +335,7 @@ envoy_cmake_external(
     static_libraries = select({
         "//conditions:default": [
             "libWAVM.a",
+            "libWAVMUnwind.a",
         ],
     }),
     deps = [":llvm"],