Hi Ben, The problem is that I don't get any breakpoint hit notification in gdb. The program just execute and exited normally, regardless of whether i set the breakpoint or not in __jit_debug_register_code.
I double checked in instructions that when I am using gm.py with target x64.debug, it does use the option ENABLE_GDB_JIT_INTERFACE. So, then I am very confused why I don't get breakpoint hit in gdb. Appreciate your help. On Monday, June 18, 2018 at 3:20:44 PM UTC-7, Ben Noordhuis wrote: > > On Sun, Jun 17, 2018 at 11:15 PM, Mingwei Zhang <mingwa...@gmail.com > <javascript:>> 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.
