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    SubjectRe: [PATCH UPDATED 3/3] tracing: Provide trace events interface for uprobes
    > > +
    > > + # echo 'p /bin/zsh:0x46420 %ip %ax' > uprobe_events
    > > +
    > > +Please note: User has to explicitly calculate the offset of the probepoint
    > > +in the object. We can see the events that are registered by looking at the
    > > +uprobe_events file.
    > > +
    > > + # cat uprobe_events
    > > + p:uprobes/p_zsh_0x46420 /bin/zsh:0x0000000000046420
    >
    > Doesn't uprobe_events show the arguments of existing events?
    > And also, could you add an event format of above event here?
    >

    [root@f14kvm tracing]# cat uprobe_events
    [root@f14kvm tracing]# echo 'p /bin/zsh:0x46420 %ip %ax' > uprobe_events
    [root@f14kvm tracing]# cat uprobe_events
    p:uprobes/p_zsh_0x46420 /bin/zsh:0x00046420 arg1=%ip arg2=%ax
    [root@f14kvm tracing]# cat events/uprobes/p_zsh_0x46420/format
    name: p_zsh_0x46420
    ID: 922
    format:
    field:unsigned short common_type; offset:0; size:2; signed:0;
    field:unsigned char common_flags; offset:2; size:1; signed:0;
    field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
    field:int common_pid; offset:4; size:4; signed:1;
    field:int common_padding; offset:8; size:4; signed:1;

    field:unsigned long __probe_ip; offset:12; size:4; signed:0;
    field:u32 arg1; offset:16; size:4; signed:0;
    field:u32 arg2; offset:20; size:4; signed:0;

    print fmt: "(%lx) arg1=%lx arg2=%lx", REC->__probe_ip, REC->arg1, REC->arg2
    [root@f14kvm tracing]#

    Will update the Documentation file with correct output of "cat
    uprobe_events". Do you want the format file to be added to the
    Documentation?

    --
    Thanks and Regards
    Srikar



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