Awesome! Thank you!
I'm sorry to keep asking questions, but I'm wondering how can I get
void Code::Disassemble(const char* name, std::ostream& os, Address
current_pc) { ...
}
to get executed instead of
void BytecodeArray::Disassemble(std::ostream& os) { ...}
I've already enabled the disassembler both in the BUILD.gn and
glad-definition, but still the second gets executed.
The first disassembler has more information that I want, such as the Source
positions and pc offset position.
I truly appreciate your response and help!
2018년 11월 12일 월요일 오전 3시 0분 41초 UTC-7, Ben Noordhuis 님의 말:
>
> On Mon, Nov 12, 2018 at 7:38 AM TLim <heuich...@gmail.com <javascript:>>
> wrote:
> > Hi,
> >
> > So, I'm trying to get a direct access to the source file where
> disassembly information lives.
> > For example, when I run a JS program like below
> > function foo()
> > {
> > return 1+2;
> > }
> >
> > foo();
> >
> > I get the output like below when run $d8 foo.js.
> >
> > -> 0x22bef6ea00ed @ 19 : 13 01 00 LdaGlobal [1], [0]
> > [ accumulator <- 0x22bef6ea01d9 <JSFunction foo (sfi =
> 0x22bef6e9fff1)> ]
> > -> 0x22bef6ea00f0 @ 22 : 26 fa Star r1
> > [ accumulator -> 0x22bef6ea01d9 <JSFunction foo (sfi =
> 0x22bef6e9fff1)> ]
> > [ r1 <- 0x22bef6ea01d9 <JSFunction foo (sfi =
> 0x22bef6e9fff1)> ]
> > -> 0x22bef6ea00f2 @ 24 : 5f fa f9 01 CallNoFeedback r1, r2-r2
> > [ r1 -> 0x22bef6ea01d9 <JSFunction foo (sfi =
> 0x22bef6e9fff1)> ]
> > [ r2 -> 0x06053d3004d9 <undefined> ]
> >
> > I know that some of them get printed in src/objects.cc, but the part
> between the brackets
> > [ accumulator <- 0x22bef6ea01d9 <JSFunction foo (sfi = 0x22bef6e9fff1)>
> ]
> > is the part I'm not sure where the source code lives.
> >
> > If anyone can help me to locate this file, that will be a great help!
> >
> > Thank you!
>
> PrintRegisters() in src/runtime/runtime-interpreter.cc. The part after
> the arrow comes from the overloaded ShortPrint() method of the value
> in the accumulator, a JSFunction in this case.
>
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