1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/wasm/WasmLog.h b/js/src/wasm/WasmLog.h
new file mode 100644
index 0000000000..7ee5a5fc20
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+++ b/js/src/wasm/WasmLog.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ *
+ * Copyright 2021 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef wasm_log_h
+#define wasm_log_h
+
+#include "js/TypeDecls.h"
+
+namespace js {
+namespace wasm {
+
+// Verbose logging support.
+
+extern void Log(JSContext* cx, const char* fmt, ...) MOZ_FORMAT_PRINTF(2, 3);
+extern void LogOffThread(const char* fmt, ...) MOZ_FORMAT_PRINTF(1, 2);
+
+// Codegen debug support.
+
+enum class DebugChannel {
+  Function,
+  Import,
+};
+
+#ifdef WASM_CODEGEN_DEBUG
+bool IsCodegenDebugEnabled(DebugChannel channel);
+#endif
+
+void DebugCodegen(DebugChannel channel, const char* fmt, ...)
+    MOZ_FORMAT_PRINTF(2, 3);
+
+using PrintCallback = void (*)(const char*);
+
+}  // namespace wasm
+}  // namespace js
+
+#endif  // wasm_log_h