1 files changed, 10 insertions, 0 deletions
diff --git a/src/3rdparty/masm/wtf/OSAllocatorPosix.cpp b/src/3rdparty/masm/wtf/OSAllocatorPosix.cpp
index bbf11e4488..0c902c7172 100644
--- a/src/3rdparty/masm/wtf/OSAllocatorPosix.cpp
+++ b/src/3rdparty/masm/wtf/OSAllocatorPosix.cpp
@@ -191,6 +191,16 @@ void OSAllocator::releaseDecommitted(void* address, size_t bytes)
 
 bool OSAllocator::canAllocateExecutableMemory()
 {
+    int flags = MAP_PRIVATE | MAP_ANON;
+#if PLATFORM(IOS)
+    if (executable)
+        flags |= MAP_JIT;
+#endif
+    const auto size = pageSize();
+    void *testPage = mmap(nullptr, size, PROT_READ | PROT_WRITE | PROT_EXEC, flags, /*fd*/-1, /*offset*/0);
+    if (testPage == MAP_FAILED)
+        return false;
+    munmap(testPage, size);
     return true;
 }