Thanks Jakob, for your answer and sorry for the late response. Another thing that came to my mind: Considering I do not execute the JS code with d8 and the print-opt-code flag but directly within my chrome browser: Is the produced code the same? Meaning, does it matter, if I execute the JS code with d8 or directly in chrome? To my understanding it shouldn't, since they both use the same interpreters/JIT compilers...
However, a final question to this topic: When v8 produces the optimized code, it generates the AST based on the fully generated code, then letting the runtime profiler mark hot regions to optimize (I know this is a very high level and non-technical view ;) ). Does this mean, when I execute JS code within my chrome browser, the fully generated code is loaded into memory, before it is optimized and executed? Please let me know, if I managed to confuse you :D Am Montag, 21. Dezember 2015 18:07:32 UTC+1 schrieb Jakob Kummerow: > > On Mon, Dec 21, 2015 at 5:38 PM, D T <[email protected] <javascript:>> > wrote: > >> To my understanding, this is the ASM code, V8 produces for my Javascript >> input file? >> > > Yes. More specifically, it's the optimized code that was generated for > your "rnd" function. > > >> So if I execute my JS file with Chrome (using V8), I should find the >> exact same code in memory, or don't I? >> > > Yes. > > >> Furthermore: How do I reliably find the code- >> > > Right where it says: > 0x2020e060 0 55 push ebp > ^^^^^^^^^ This is the address of the "push ebp" instruction. > > >> is there a specific region where V8/Chrome normally writes to? >> > > No. > > What exactly do you mean when you say you want to "find the code"? > From a debugger? Use the address you see in the --print-opt-code output. > From JavaScript? Raw object addresses are not exposed to JavaScript, so > this should be impossible. (If you do find a way, then you've probably > found a security bug, which we'd love to hear about!) > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
