Re: reverse execution

[Hui Zhu <teawater@gmail.com>]

Thanks Jilin,

Sorry I made a mistake when we told about it.  I want to say 0xf10
series insn (they seems called sse insn), but I said mmx insn.

These 0xf10 insn seems control the xmm reg, you can see the values of
these reg whith gdb cmd "info info all-registers".

Hui


On Sun, Oct 18, 2009 at 09:02, Jiang Jilin <freephp@gmail.com> wrote:
> On Sat, Oct 17, 2009 at 4:34 AM, burlen <burlen.loring@gmail.com> wrote:
>> Is it possible to use reverse execution features on x86-64 linux platform? I
>> turned it on bad things happened. namely sigtrap then sigabrt. it spit out
>> these messages:
>>
>> Process record doesn't support instruction 0xf10 at address 0x7fffdda0dc77.
>> Process record: failed to record execution log.
>
> I checked the opcode 0x0f10, it seems that it hasn't been supported so far,
> either on x86-32 or x86-64.  I'm working on it.
>
> Thank you for reporting!
>
>
> To Hui and Michael :
>
> Sorry, I'm a bit busy for looking for jobs these days, so I've to
> delay the work for
> MMX support . And now, I think I should add opcode 0x0f10 support and other
> 2-byte opcodes at first, because they seems more easier to implement.
> Any questions
> please tell me :)
>
> Thanks!
>
> Jiang
>
>> My session follows. Does this mean reverse execution isn't going to work on
>> this platform? or perhaps I have done something wrong in my attempt to use
>> the feature?
>>
>> Thanks
>> Burlen
>>
>>
>> (gdb) run
>> Starting program: /home/burlen/ext/ParaView/PV3-3.7/bin/pvserver
>> [Thread debugging using libthread_db enabled]
>> Listen on port: 11111
>> Waiting for client...
>> Waiting for server...
>> Client connected.
>> ^C
>> Program received signal SIGINT, Interrupt.
>> 0x00007fffe31a66f3 in select () from /lib/libc.so.6
>> (gdb) br vtkOOCFieldTracer::OOCIntegrateOne
>> Breakpoint 1 at 0x7fffdda0b591: file
>> /home/burlen/ext/ParaView/SciVisToolKit/vtkOOCFieldTracer.cxx, line 447.
>> (gdb) cont
>> Continuing.
>>
>> Breakpoint 1, vtkOOCFieldTracer::OOCIntegrateOne (this=0xa77570,
>> oocR=0x1fbff10, fieldName=0xed88b8 "vi", line=0x1fd2020,
>> tcon=0x7fffffffc480) at
>> /home/burlen/ext/ParaView/SciVisToolKit/vtkOOCFieldTracer.cxx:447
>> 447       int w=0;
>> (gdb) target record
>> (gdb) disable 1
>> (gdb) cont
>> Continuing.
>> Process record doesn't support instruction 0xf10 at address 0x7fffdda0dc77.
>> Process record: failed to record execution log.
>>
>> Program received signal SIGTRAP, Trace/breakpoint trap.
>> 0x00007fffdda0dc76 in FieldLine::GetSeedPoint (this=0x1fd2020,
>> p=0x7fffffffc2e0) at /home/burlen/ext/ParaView/SciVisToolKit/FieldLine.h:113
>> 113         p[0]=this->Seed[0];
>> (gdb) cont
>> Continuing.
>> Process record doesn't support instruction 0xf10 at address 0x7fffdda0dc77.
>> Process record: failed to record execution log.
>>
>> Program received signal SIGABRT, Aborted.
>> 0x00007fffdda0dc76 in FieldLine::GetSeedPoint (this=0x1fd2020,
>> p=0x7fffffffc2e0) at /home/burlen/ext/ParaView/SciVisToolKit/FieldLine.h:113
>> 113         p[0]=this->Seed[0];
>> (gdb)
>>
>>
>>
>
>
>
> --
> Jiang
>