perf test: Fix 'perf test BPF' when it fails to find a suitable vmlinux
authorWang Nan <wangnan0@huawei.com>
Tue, 17 Nov 2015 08:32:46 +0000 (08:32 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 18 Nov 2015 20:51:04 +0000 (17:51 -0300)
commitad0dd7aed5df8009b3ffa39bec73ad93283332c9
treed001a6717f3988476f4e0d5f94c928c7b5a7845b
parentbbb7d4925a05ecd5bbfdbc1147d402b0db203a5a
perf test: Fix 'perf test BPF' when it fails to find a suitable vmlinux

Two bugs in 'perf test BPF' are found when testing BPF prologue without
vmlinux:

 # mv /lib/modules/4.3.0-rc4+/build/vmlinux{,.bak}
 # ./perf test BPF
 37: Test BPF filter             :Failed to find the path for kernel: No such file or directory
 Ok

Test BPF should fail in this case.

After this patch:

 # ./perf test BPF
 37: Test BPF filter             :Failed to find the path for kernel: No such file or directory
  FAILED!
 # mv /lib/modules/4.3.0-rc4+/build/vmlinux{.bak,}
 # ./perf test BPF
 37: Test BPF filter             : Ok

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1447749170-175898-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/tests/bpf.c