Changeset 50265 in webkit for trunk/JavaScriptCore

Timestamp:

Oct 29, 2009, 12:32:33 AM (16 years ago)

Author:

[email protected]

Message:

Add cacheFlush support for Thumb-2 on Linux
​https://bugs.webkit.org/show_bug.cgi?id=30865

Patch by Gabor Loki <​[email protected]> on 2009-10-29
Reviewed by Gavin Barraclough.

• jit/ExecutableAllocator.h:

(JSC::ExecutableAllocator::cacheFlush):

Location:

trunk/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• jit/ExecutableAllocator.h (modified) (1 diff)

trunk/JavaScriptCore/ChangeLog

@@ +1 @@
+2009-10-29  Gabor Loki  <[email protected]>
+
+        Reviewed by Gavin Barraclough.
+
+        Add cacheFlush support for Thumb-2 on Linux
+        https://bugs.webkit.org/show_bug.cgi?id=30865
+
+        * jit/ExecutableAllocator.h:
+        (JSC::ExecutableAllocator::cacheFlush):
+
 2009-10-28  Gavin Barraclough  <[email protected]>
 

trunk/JavaScriptCore/jit/ExecutableAllocator.h

@@ -190 +190 @@
         sys_icache_invalidate(code, size);
     }
+#elif PLATFORM(ARM_THUMB2) && PLATFORM(LINUX)
+    static void cacheFlush(void* code, size_t size)
+    {
+        asm volatile (
+            "push    {r7}\n"
+            "mov     r0, %0\n"
+            "mov     r1, %1\n"
+            "movw    r7, #0x2\n"
+            "movt    r7, #0xf\n"
+            "movs    r2, #0x0\n"
+            "svc     0x0\n"
+            "pop     {r7}\n"
+            :
+            : "r" (code), "r" (reinterpret_cast<char*>(code) + size)
+            : "r0", "r1");
+    }
 #elif PLATFORM(SYMBIAN)
     static void cacheFlush(void* code, size_t size)