On Sun, Jun 17, 2018 at 11:15 PM, Mingwei Zhang <mingwayzh...@gmail.com> wrote: > Dear V8 developer, > > I recently tried to use the debugging interface for gdb on JIT code. When I > tried building a debug build of V8 and following the instructions in: > > https://github.com/v8/v8/wiki/GDB-JIT-Interface > > I launched my program using the following command: > >> gdb --args ./d8 --gdbjit helloworld.js > > > In the gdb prompt, I setup a breakpoint in __jit_debug_register_code before > launch my program, but looks like the hook was never invoked. > > I am using gdb 7.11 in Ubuntu 16.04. > d8 version 6.7.0 (candidate) > > My helloworld.js is very simple like this: >>> >>> function func() { >>> >>> console.log('hello'); >>> >>> } >>> >>> >>> func() >> >> > > Thanks.
You don't have to set a breakpoint in __jit_debug_register_code, gdb does that for you. It's a magic method that gdb recognizes, see https://sourceware.org/gdb/onlinedocs/gdb/Declarations.html for details. That said, the gdbjit code is unmaintained - or at least not regularly tested - and quite possibly broken. YMMV. -- -- v8-users mailing list v8-users@googlegroups.com 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 v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
