Re: [PATCH v8 5/8] seccomp: Add SECCOMP_RET_TRAP

[H. Peter Anvin]

On 02/16/2012 12:28 PM, Markus Gutschke wrote:
> On Thu, Feb 16, 2012 at 12:02, Will Drewry <wad@xxxxxxxxxxxx> wrote:
>> Adds a new return value to seccomp filters that triggers a SIGTRAP to be delivered with the new TRAP_SECCOMP si_code.
>>
>> This allows in-process system call emulation -- including just specifying an errno or cleanly dumping core -- rather than just dying.
> 
> SIGTRAP might not be the ideal choice of signal number, as it can make
> it very difficult to debug the program in gdb. Other than that, I love
> this feature. It'll significantly simplify the code that we have in
> Chrome.
> 

Sounds like SIGSYS to me.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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