2011-05-19 Oliver Hunt <oliver@apple.com>
Reviewed by Gavin Barraclough.
Randomise code starting location a little
https://bugs.webkit.org/show_bug.cgi?id=61161
Add a nop() function to the Assemblers so that we
can randomise code offsets slightly at no real cost.
* assembler/ARMAssembler.h:
(JSC::ARMAssembler::nop):
* assembler/ARMv7Assembler.h:
(JSC::ARMv7Assembler::nop):
* assembler/MacroAssemblerARM.h:
(JSC::MacroAssemblerARM::nop):
* assembler/MacroAssemblerARMv7.h:
(JSC::MacroAssemblerARMv7::nop):
* assembler/MacroAssemblerMIPS.h:
(JSC::MacroAssemblerMIPS::nop):
* assembler/MacroAssemblerSH4.h:
(JSC::MacroAssemblerSH4::nop):
* assembler/MacroAssemblerX86Common.h:
(JSC::MacroAssemblerX86Common::nop):
* assembler/X86Assembler.h:
(JSC::X86Assembler::nop):
* jit/JIT.cpp:
(JSC::JIT::JIT):
(JSC::JIT::privateCompile):
* jit/JIT.h:
* runtime/WeakRandom.h:
(JSC::WeakRandom::getUint32):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@86919 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/jit/JIT.h b/Source/JavaScriptCore/jit/JIT.h
index ea22854d..d79f3f4 100644
--- a/Source/JavaScriptCore/jit/JIT.h
+++ b/Source/JavaScriptCore/jit/JIT.h
@@ -997,6 +997,7 @@
int m_uninterruptedConstantSequenceBegin;
#endif
#endif
+ WeakRandom m_randomGenerator;
static CodePtr stringGetByValStubGenerator(JSGlobalData* globalData, ExecutablePool* pool);
} JIT_CLASS_ALIGNMENT;
