File webkitgtk-aarch64.patch of Package webkitgtk

Index: webkitgtk-2.4.10/Source/JavaScriptCore/assembler/ARM64Assembler.h
===================================================================
--- webkitgtk-2.4.10.orig/Source/JavaScriptCore/assembler/ARM64Assembler.h
+++ webkitgtk-2.4.10/Source/JavaScriptCore/assembler/ARM64Assembler.h
@@ -29,6 +29,7 @@
 #if ENABLE(ASSEMBLER) && CPU(ARM64)
 
 #include "AssemblerBuffer.h"
+#include <limits.h>
 #include <wtf/Assertions.h>
 #include <wtf/Vector.h>
 #include <stdint.h>
@@ -583,9 +584,9 @@ public:
                 JumpType m_type : 8;
                 JumpLinkType m_linkType : 8;
                 Condition m_condition : 4;
-                bool m_is64Bit : 1;
                 unsigned m_bitNumber : 6;
-                RegisterID m_compareRegister : 5;
+                RegisterID m_compareRegister : 6;
+                bool m_is64Bit : 1;
             } realTypes;
             struct CopyTypes {
                 uint64_t content[3];
@@ -2752,10 +2753,34 @@ public:
 
     unsigned debugOffset() { return m_buffer.debugOffset(); }
 
+#if OS(LINUX) && COMPILER(GCC)
+    static inline void linuxPageFlush(uintptr_t begin, uintptr_t end)
+    {
+        __builtin___clear_cache(reinterpret_cast<void*>(begin), reinterpret_cast<void*>(end));
+    }
+#endif
+
     static void cacheFlush(void* code, size_t size)
     {
 #if OS(IOS)
         sys_cache_control(kCacheFunctionPrepareForExecution, code, size);
+#elif OS(LINUX)
+        size_t page = pageSize();
+        uintptr_t current = reinterpret_cast<uintptr_t>(code);
+        uintptr_t end = current + size;
+        uintptr_t firstPageEnd = (current & ~(page - 1)) + page;
+
+        if (end <= firstPageEnd) {
+            linuxPageFlush(current, end);
+            return;
+        }
+
+        linuxPageFlush(current, firstPageEnd);
+
+        for (current = firstPageEnd; current + page < end; current += page)
+            linuxPageFlush(current, current + page);
+
+        linuxPageFlush(current, end);
 #else
 #error "The cacheFlush support is missing on this platform."
 #endif
Index: webkitgtk-2.4.10/Source/JavaScriptCore/assembler/MacroAssemblerARM64.h
===================================================================
--- webkitgtk-2.4.10.orig/Source/JavaScriptCore/assembler/MacroAssemblerARM64.h
+++ webkitgtk-2.4.10/Source/JavaScriptCore/assembler/MacroAssemblerARM64.h
@@ -130,7 +130,6 @@ public:
     // FIXME: Get reasonable implementations for these
     static bool shouldBlindForSpecificArch(uint32_t value) { return value >= 0x00ffffff; }
     static bool shouldBlindForSpecificArch(uint64_t value) { return value >= 0x00ffffff; }
-    static bool shouldBlindForSpecificArch(uintptr_t value) { return value >= 0x00ffffff; }
 
     // Integer operations:
 
Index: webkitgtk-2.4.10/Source/JavaScriptCore/offlineasm/arm64.rb
===================================================================
--- webkitgtk-2.4.10.orig/Source/JavaScriptCore/offlineasm/arm64.rb
+++ webkitgtk-2.4.10/Source/JavaScriptCore/offlineasm/arm64.rb
@@ -127,7 +127,7 @@ class RegisterID
         when 'sp'
             'sp'
         when 'lr'
-            'lr'
+            'x30'
         else
             raise "Bad register name #{@name} at #{codeOriginString}"
         end
@@ -585,9 +585,9 @@ class Instruction
                 $asm.puts "stp #{ops[0].arm64Operand(:ptr)}, #{ops[1].arm64Operand(:ptr)}, [sp, #-16]!"
             }
         when "popLRAndFP"
-            $asm.puts "ldp fp, lr, [sp], #16"
+            $asm.puts "ldp x29, x30, [sp], #16"
         when "pushLRAndFP"
-            $asm.puts "stp fp, lr, [sp, #-16]!"
+            $asm.puts "stp x29, x30, [sp, #-16]!"
         when "popCalleeSaves"
             $asm.puts "ldp x28, x27, [sp], #16"
             $asm.puts "ldp x26, x25, [sp], #16"
@@ -607,13 +607,13 @@ class Instruction
                 emitARM64("mov", operands, :ptr)
             end
         when "sxi2p"
-            emitARM64("sxtw", operands, :ptr)
+            emitARM64("sxtw", operands, [:int, :ptr])
         when "sxi2q"
-            emitARM64("sxtw", operands, :ptr)
+            emitARM64("sxtw", operands, [:int, :ptr])
         when "zxi2p"
-            emitARM64("uxtw", operands, :ptr)
+            emitARM64("uxtw", operands, [:int, :ptr])
         when "zxi2q"
-            emitARM64("uxtw", operands, :ptr)
+            emitARM64("uxtw", operands, [:int, :ptr])
         when "nop"
             $asm.puts "nop"
         when "bieq", "bbeq"
Index: webkitgtk-2.4.10/Source/WTF/wtf/Atomics.h
===================================================================
--- webkitgtk-2.4.10.orig/Source/WTF/wtf/Atomics.h
+++ webkitgtk-2.4.10/Source/WTF/wtf/Atomics.h
@@ -123,7 +123,7 @@ inline bool weakCompareAndSwap(volatile
         "b.ne 0f\n\t"
         "stxr %w1, %w4, %0\n\t"
         "0:"
-        : "+m"(*location), "=&r"(result), "=&r"(tmp)
+        : "+Q"(*location), "=&r"(result), "=&r"(tmp)
         : "r"(expected), "r"(newValue)
         : "memory");
     result = !result;
@@ -163,7 +163,7 @@ inline bool weakCompareAndSwap(void*vola
         "b.ne 0f\n\t"
         "stxr %w1, %x4, %0\n\t"
         "0:"
-        : "+m"(*location), "=&r"(result), "=&r"(tmp)
+        : "+Q"(*location), "=&r"(result), "=&r"(tmp)
         : "r"(expected), "r"(newValue)
         : "memory");
     return !result;