lkml.org 
[lkml]   [2005]   [Jan]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: The purpose of PT_TRACESYSGOOD

    >> 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/

    \
     
     \ /
      Last update: 2005-03-22 14:09    [W:0.047 / U:0.140 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site