Re: [Qemu-devel] [RFC] Static instrumentation (aka guest code tracing)

2010-11-29 Thread Lluís
Paul Brook writes: >> > Likewise requiring separate tracing hooks be added to the existing >> > decoders is extremely unlikely to be a feasible long-term >> > solution. >> >> You mean having to modify each "translate.c"? The worst event to handle >> is instruction fetch on x86. > Instruction fet

Re: [Qemu-devel] [RFC] Static instrumentation (aka guest code tracing)

2010-11-26 Thread Paul Brook
> > Likewise requiring separate tracing hooks be added to the existing > > decoders is extremely unlikely to be a feasible long-term > > solution. > > You mean having to modify each "translate.c"? The worst event to handle > is instruction fetch on x86. Instruction fetches are trivial, you just i

Re: [Qemu-devel] [RFC] Static instrumentation (aka guest code tracing)

2010-11-26 Thread Lluís
Paul Brook writes: >> 2) instrumenting i386 is extremely time-consuming (for the developer) >> >> As my work is not tied to a specific target architecture, I was thinking of >> shifting into PPC, as the ISA is pretty regular and that would certainly >> make the process easier by just patching a s

Re: [Qemu-devel] [RFC] Static instrumentation (aka guest code tracing)

2010-11-26 Thread Paul Brook
> 2) instrumenting i386 is extremely time-consuming (for the developer) > > As my work is not tied to a specific target architecture, I was thinking of > shifting into PPC, as the ISA is pretty regular and that would certainly > make the process easier by just patching a small set of places in the

[Qemu-devel] [RFC] Static instrumentation (aka guest code tracing)

2010-08-03 Thread Lluís
Ok, sorry for the delay. Here's a "report" on the current status. Please comment if you feel that any decision has been taken through the wrong path. Also, if you send me patches I'll happily push them into the repository. Quick status summary * minimal set of instrumentat