| From | Markus Gutschke <> | Date | Thu, 16 Feb 2012 12:28:25 -0800 | Subject | Re: [PATCH v8 5/8] seccomp: Add SECCOMP_RET_TRAP |
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On Thu, Feb 16, 2012 at 12:02, Will Drewry <wad@chromium.org> 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.
Markus
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