• Arnaldo Carvalho de Melo's avatar
    perf trace: Allow specifying a set of events to add in perfconfig · ac96287c
    Arnaldo Carvalho de Melo authored
    To add augmented_raw_syscalls to the events speficied by the user, or be
    the only one if no events were specified by the user, one can add this
    to perfconfig:
    
      # cat ~/.perfconfig
      [trace]
    	  add_events = /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
      #
    
    I.e. pre-compile the augmented_raw_syscalls.c BPF program and make it
    always load, this way:
    
      # perf trace -e open* cat /etc/passwd > /dev/null
         0.000 ( 0.013 ms): cat/31557 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC) = 3
         0.035 ( 0.007 ms): cat/31557 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC) = 3
         0.353 ( 0.009 ms): cat/31557 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3
         0.424 ( 0.006 ms): cat/31557 openat(dfd: CWD, filename: /etc/passwd) = 3
      #
    
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: https://lkml.kernel.org/n/tip-0lgj7vh64hg3ce44gsmvj7ud@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    ac96287c
builtin-trace.c 107 KB