Re: [webkit-dev] Bytecode Sequence for function.apply()
How would I go about building jsc in debug mode? Is it possible to build a standalone jsc shell? I'm using Qt Webkit, with the bulld-webkit and run-webkit scripts. Thank you for your help, - Maxime Oliver Hunt-2 wrote: If you have a debug build of jsc, you can run 'jsc -d' and that will dump the generated bytecode --Oliver On May 20, 2010, at 8:42 AM, Nyx wrote: I've been working on a tool to generate a trace of JavaScript executions, built on JavaScriptCore. I'm trying to log calls to all functions and their arguments. To do this, I've instrumented the op_call and op_call_varargs bytecodes in Interpreter.cpp. The problem I'm having is that if someone calls a native/host function through apply, I don't see the call. For example, the call: string.fromCharCode.apply(null, [65, 66, 67]); Doesn't seem to correspond to an op_call or op_call_varargs, so I'm wondering how this is handled in JavaScriptCore, what kind of bytecodes generated, and if somebody has any idea what I could do to log the unseen calls to native functions, short of instrumenting every native function in WebKit. -- View this message in context: http://old.nabble.com/Bytecode-Sequence-for-function.apply%28%29-tp28623075p28623075.html Sent from the Webkit mailing list archive at Nabble.com. ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev -- View this message in context: http://old.nabble.com/Bytecode-Sequence-for-function.apply%28%29-tp28623075p28673826.html Sent from the Webkit mailing list archive at Nabble.com. ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] Bytecode Sequence for function.apply()
How would I go about building jsc in debug mode? Is it possible to build a standalone jsc shell? See https://lists.webkit.org/pipermail/webkit-qt/2010-January/89.html for details. -- Ariya Hidayat http://www.linkedin.com/in/ariyahidayat ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] Bytecode Sequence for function.apply()
Well, I ran build-webkit with the --debug option, and when I try to run WebKit/WebKitBuild/Debug/JavaScriptCore/jsc , I get a failed assertion: ASSERTION FAILED: !isHostFunctionNonInline() (../../../JavaScriptCore/runtime/Executable.h:349 JSC::FunctionExecutable* JSC::JSFunction::jsExecutable() const) Is there a C++ I can call directly to get a bytecode dump of a JS function? - Maxime Ariya Hidayat wrote: How would I go about building jsc in debug mode? Is it possible to build a standalone jsc shell? See https://lists.webkit.org/pipermail/webkit-qt/2010-January/89.html for details. -- View this message in context: http://old.nabble.com/Bytecode-Sequence-for-function.apply%28%29-tp28623075p28675341.html Sent from the Webkit mailing list archive at Nabble.com. ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
[webkit-dev] Bytecode Sequence for function.apply()
I've been working on a tool to generate a trace of JavaScript executions, built on JavaScriptCore. I'm trying to log calls to all functions and their arguments. To do this, I've instrumented the op_call and op_call_varargs bytecodes in Interpreter.cpp. The problem I'm having is that if someone calls a native/host function through apply, I don't see the call. For example, the call: string.fromCharCode.apply(null, [65, 66, 67]); Doesn't seem to correspond to an op_call or op_call_varargs, so I'm wondering how this is handled in JavaScriptCore, what kind of bytecodes generated, and if somebody has any idea what I could do to log the unseen calls to native functions, short of instrumenting every native function in WebKit. -- View this message in context: http://old.nabble.com/Bytecode-Sequence-for-function.apply%28%29-tp28623075p28623075.html Sent from the Webkit mailing list archive at Nabble.com. ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] Bytecode Sequence for function.apply()
If you have a debug build of jsc, you can run 'jsc -d' and that will dump the generated bytecode --Oliver On May 20, 2010, at 8:42 AM, Nyx wrote: I've been working on a tool to generate a trace of JavaScript executions, built on JavaScriptCore. I'm trying to log calls to all functions and their arguments. To do this, I've instrumented the op_call and op_call_varargs bytecodes in Interpreter.cpp. The problem I'm having is that if someone calls a native/host function through apply, I don't see the call. For example, the call: string.fromCharCode.apply(null, [65, 66, 67]); Doesn't seem to correspond to an op_call or op_call_varargs, so I'm wondering how this is handled in JavaScriptCore, what kind of bytecodes generated, and if somebody has any idea what I could do to log the unseen calls to native functions, short of instrumenting every native function in WebKit. -- View this message in context: http://old.nabble.com/Bytecode-Sequence-for-function.apply%28%29-tp28623075p28623075.html Sent from the Webkit mailing list archive at Nabble.com. ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
