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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-01-24 15:39:15 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-01-25 15:12:11 +0100
commit1d59cb1bbd4cbe5a8f8032242cdacea5658129cf (patch)
tree97956d126ac8b353febce7487f8b9bfe633807cf /tools/perf/examples/bpf
parentperf augmented_raw_syscalls: Use bpf_map() (diff)
downloadlinux-dev-1d59cb1bbd4cbe5a8f8032242cdacea5658129cf.tar.xz
linux-dev-1d59cb1bbd4cbe5a8f8032242cdacea5658129cf.zip
perf trace: Fixup etcsnoop example
Where we don't have "raw_syscalls:sys_enter", so we need to look for a "*syscalls:sys_enter*" to initialize the offsets for the __augmented_syscalls__ evsel, which is the case with etcsnoop, that was segfaulting, fixed: # trace -e /home/acme/git/perf/tools/perf/examples/bpf/etcsnoop.c 0.000 ( ): gnome-shell/2105 openat(dfd: CWD, filename: "/etc/localtime") ... 631.834 ( ): cat/6521 openat(dfd: CWD, filename: "/etc/ld.so.cache", flags: RDONLY|CLOEXEC) ... 632.637 ( ): bash/6521 openat(dfd: CWD, filename: "/etc/passwd") ... ^C# 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> Fixes: b9b6a2ea2baf ("perf trace: Do not hardcode the size of the tracepoint common_ fields") Link: https://lkml.kernel.org/n/tip-0tjwcit8qitsmh4nyvf2b0jo@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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