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    SubjectRe: [PATCH] tracing/x86: Update syscall trace events to handle new x86 syscall func names
    Em Tue, Apr 17, 2018 at 12:57:23PM -0400, Steven Rostedt escreveu:
    > On Tue, 17 Apr 2018 12:40:19 -0400
    > Steven Rostedt <rostedt@goodmis.org> wrote:
    >
    > > On Tue, 17 Apr 2018 13:35:27 -0300
    > > Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
    > >
    > >
    > > > [root@jouet ~]# perf test openat
    > > > 2: Detect openat syscall event : Ok
    > > > 3: Detect openat syscall event on all cpus : Ok
    > > > 15: syscalls:sys_enter_openat event fields : Ok
    > > > [root@jouet ~]#
    > > >
    > > > [root@jouet ~]# perf trace -e nanosleep,syscalls:*nanosleep sleep 1
    > > > 0.000 ( ): syscalls:sys_enter_nanosleep:rqtp: 0x7ffd9f737950, rmtp: 0x00000000
    > > > 0.009 ( ): sleep/7905 nanosleep(rqtp: 0x7ffd9f737950 ) ...
    > > > 1000.204 ( ): syscalls:sys_exit_nanosleep:0x0
    > > > 0.009 (1000.217 ms): sleep/7905 ... [continued]: nanosleep()) = 0
    > > > [root@jouet ~]#
    > > >
    > > > Works, so the regression seems to be fixed, without looking at the code
    > > > that much:
    > > >
    > > > Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    > >
    > > But does this still work on x86_32? I'll test that out. Thanks for
    > > testing, but I may have another patch soon.
    >
    > OK, it's still broken there with this patch. I got this:
    >
    > # ls /sys/kernel/tracing/events/syscalls
    > enable
    > filter
    > sys_enter_nanosleep
    > sys_exit_nanosleep
    >
    > But with this:
    >
    > return !strcmp(sym + 9, name + 3) || !strcmp(sym + 3, name + 3);
    >
    > I get all the syscalls back. I'll make another patch.

    Argh, rebuilding the world, since lots of places include ftrace.h...

    - Arnaldo

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