Title: [226603] trunk/Source/WebCore
- Revision
- 226603
- Author
- sbar...@apple.com
- Date
- 2018-01-08 17:55:40 -0800 (Mon, 08 Jan 2018)
Log Message
Speculative build fix after r226600. We only use clflush on x86 and the `asm volatile` syntax is not available in the Windows build.
No new tests because this is a build fix.
* dom/Comment.cpp:
(WebCore::Comment::clflushReadLength):
Modified Paths
Diff
Modified: trunk/Source/WebCore/ChangeLog (226602 => 226603)
--- trunk/Source/WebCore/ChangeLog 2018-01-09 01:53:29 UTC (rev 226602)
+++ trunk/Source/WebCore/ChangeLog 2018-01-09 01:55:40 UTC (rev 226603)
@@ -1,3 +1,12 @@
+2018-01-08 Saam Barati <sbar...@apple.com>
+
+ Speculative build fix after r226600. We only use clflush on x86 and the `asm volatile` syntax is not available in the Windows build.
+
+ No new tests because this is a build fix.
+
+ * dom/Comment.cpp:
+ (WebCore::Comment::clflushReadLength):
+
2018-01-08 Michael Saboff <msab...@apple.com>
Add a DOM gadget for Spectre testing
Modified: trunk/Source/WebCore/dom/Comment.cpp (226602 => 226603)
--- trunk/Source/WebCore/dom/Comment.cpp 2018-01-09 01:53:29 UTC (rev 226602)
+++ trunk/Source/WebCore/dom/Comment.cpp 2018-01-09 01:55:40 UTC (rev 226603)
@@ -86,6 +86,7 @@
void Comment::clflushReadLength()
{
+#if CPU(X86_64) && !OS(WINDOWS)
auto clflush = [] (void* ptr) {
char* ptrToFlush = static_cast<char*>(ptr);
asm volatile ("clflush %0" :: "m"(*ptrToFlush) : "memory");
@@ -92,6 +93,7 @@
};
clflush(&m_readLength);
+#endif
}
} // namespace WebCore
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