Changeset 43619 in webkit for trunk/JavaScriptCore/JavaScriptCore.exp

Timestamp:

May 13, 2009, 2:10:02 AM (16 years ago)

Author:

[email protected]

Message:

2009-05-12 Gavin Barraclough <​[email protected]>

Reviewed by Oliver Hunt.

Add SamplingCounter tool to provide a simple mechanism for counting events in JSC
(enabled using ENABLE(SAMPLING_COUNTERS)). To count events within a single function
use the class 'SamplingCounter', where the counter may be incremented from multiple
functions 'GlobalSamplingCounter' may be convenient; all other counters (stack or
heap allocated, rather than statically declared) should use the DeletableSamplingCounter.
Further description of these classes is provided alongside their definition in
SamplingTool.h.

Counters may be incremented from c++ by calling the 'count()' method on the counter,
or may be incremented by JIT code by using the 'emitCount()' method within the JIT.

This patch also fixes CODEBLOCK_SAMPLING, which was missing a null pointer check.

• JavaScriptCore.exp:
• assembler/MacroAssemblerX86.h: (JSC::MacroAssemblerX86::addWithCarry32): (JSC::MacroAssemblerX86::and32): (JSC::MacroAssemblerX86::or32):
• assembler/MacroAssemblerX86Common.h: (JSC::MacroAssemblerX86Common::and32): (JSC::MacroAssemblerX86Common::or32):
• assembler/MacroAssemblerX86_64.h: (JSC::MacroAssemblerX86_64::and32): (JSC::MacroAssemblerX86_64::or32): (JSC::MacroAssemblerX86_64::addPtr):
• assembler/X86Assembler.h: (JSC::X86Assembler::): (JSC::X86Assembler::adcl_im): (JSC::X86Assembler::addq_im): (JSC::X86Assembler::andl_im): (JSC::X86Assembler::orl_im):
• bytecode/SamplingTool.cpp: (JSC::AbstractSamplingCounter::dump):
• bytecode/SamplingTool.h: (JSC::AbstractSamplingCounter::count): (JSC::GlobalSamplingCounter::name): (JSC::SamplingCounter::SamplingCounter):
• jit/JIT.h:
• jit/JITCall.cpp: (JSC::):
• jit/JITInlineMethods.h: (JSC::JIT::setSamplingFlag): (JSC::JIT::clearSamplingFlag): (JSC::JIT::emitCount):
• jsc.cpp: (runWithScripts):
• parser/Nodes.cpp: (JSC::ScopeNode::ScopeNode):
• wtf/Platform.h:

File:

• trunk/JavaScriptCore/JavaScriptCore.exp (modified) (1 diff)

trunk/JavaScriptCore/JavaScriptCore.exp

@@ -168 +168 @@
 __ZN3JSC20MarkedArgumentBuffer10slowAppendENS_7JSValueE
 __ZN3JSC20constructEmptyObjectEPNS_9ExecStateE
+__ZN3JSC23AbstractSamplingCounter4dumpEv
 __ZN3JSC23objectProtoFuncToStringEPNS_9ExecStateEPNS_8JSObjectENS_7JSValueERKNS_7ArgListE
 __ZN3JSC23setUpStaticFunctionSlotEPNS_9ExecStateEPKNS_9HashEntryEPNS_8JSObjectERKNS_10IdentifierERNS_12PropertySlotE