Do not use guard pages on big-endian (WebAssembly#2382)

aheejin · Feb 2, 2024 · d566609 · d566609
1 parent e4a6d92
commit d566609
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/wasm2c/wasm-rt.h b/wasm2c/wasm-rt.h
@@ -135,11 +135,13 @@ extern "C" {
  *
  * This defaults to GUARD_PAGES as this is the fasest option, iff the
  * requirements of GUARD_PAGES --- 64-bit platforms, MMAP allocation strategy,
- * no 64-bit memories --- are met. This falls back to BOUNDS otherwise.
+ * no 64-bit memories, no big-endian --- are met. This falls back to BOUNDS
+ * otherwise.
  */
 
 /** Check if Guard checks are supported */
-#if UINTPTR_MAX > 0xffffffff && WASM_RT_USE_MMAP && !SUPPORT_MEMORY64
+#if UINTPTR_MAX > 0xffffffff && WASM_RT_USE_MMAP && !SUPPORT_MEMORY64 && \
+    !WABT_BIG_ENDIAN
 #define WASM_RT_GUARD_PAGES_SUPPORTED 1
 #else
 #define WASM_RT_GUARD_PAGES_SUPPORTED 0