Messages in this thread | | | Date | Tue, 11 Jan 2005 03:30:03 +0100 | From | Andries Brouwer <> | Subject | Re: The purpose of PT_TRACESYSGOOD |
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>> What's the effect of PT_TRACESYSGOOD flag? I found it's used only set >> in ptrace_setoptions, which is called in the function >> ptrace_request. And the PT_TRACESYSGOOD flag will be requested in >> do_syscall_trace. What's the purpose of that flag?
/* * A child stopped at a syscall has status as if it received SIGTRAP. * In order to distinguish between SIGTRAP and syscall, some kernel * versions have the PTRACE_O_TRACESYSGOOD option, that sets an extra * bit 0x80 in the syscall case. */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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