Files
kernel_arpi/tools/perf/util
Arnaldo Carvalho de Melo 739e2edc84 perf bpf: Show better message when failing to load an object
Before:

  libbpf: license of tools/perf/examples/bpf/etcsnoop.c is GPL
  libbpf: section(6) version, size 4, link 0, flags 3, type=1
  libbpf: kernel version of tools/perf/examples/bpf/etcsnoop.c is 41200
  libbpf: section(7) .symtab, size 120, link 1, flags 0, type=2
  bpf: config program 'syscalls:sys_enter_openat'
  libbpf: load bpf program failed: Operation not permitted
  libbpf: failed to load program 'syscalls:sys_enter_openat'
  libbpf: failed to load object 'tools/perf/examples/bpf/etcsnoop.c'
  bpf: load objects failed

After: (just the last line changes)

  bpf: load objects failed: err=-4009: (Incorrect kernel version)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-wi44iid0yjfht3lcvplc75fm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-07-31 11:58:57 -03:00
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