third_party/WebKit/Source/wtf/Atomics.h - Issue 1842003002: [arm/Linux] Don't rely on KUSER_HELPERS feature

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Unified Diff: third_party/WebKit/Source/wtf/Atomics.h

Issue 1842003002: [arm/Linux] Don't rely on KUSER_HELPERS feature (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 9 months ago

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Index: third_party/WebKit/Source/wtf/Atomics.h

diff --git a/third_party/WebKit/Source/wtf/Atomics.h b/third_party/WebKit/Source/wtf/Atomics.h

index cdd631efe8aea48f021681350150f48f18274f7e..529d83c188e433923524428e5042c1af01f5d291 100644

--- a/third_party/WebKit/Source/wtf/Atomics.h

+++ b/third_party/WebKit/Source/wtf/Atomics.h

@@ -219,7 +219,7 @@ ALWAYS_INLINE float noBarrierLoad(volatile const float* ptr)

#else

#define MEMORY_BARRIER() __asm__ __volatile__("" : : : "memory")

#endif

-#elif CPU(ARM) && (OS(LINUX) || OS(ANDROID))

+#elif CPU(ARM) && OS(ANDROID)

// On ARM __sync_synchronize generates dmb which is very expensive on single

// core devices which don't actually need it. Avoid the cost by calling into

// kuser_memory_barrier helper.

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