tools/bpf: add a test for bpf_get_stack with tracepoint prog

Browse source

The test_stacktrace_map and test_stacktrace_build_id are
enhanced to call bpf_get_stack in the helper to get the
stack trace as well.  The stack traces from bpf_get_stack
and bpf_get_stackid are compared to ensure that for the
same stack as represented as the same hash, their ip addresses
or build id's must be the same.

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Yonghong Song 2018-04-28 22:28:16 -07:00 • committed by Alexei Starovoitov

parent 173965fbfb

commit 79b4535013

3 changed files with 98 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

70

tools/testing/selftests/bpf/test_progs.c

View file

20

tools/testing/selftests/bpf/test_stacktrace_build_id.c

View file

19

tools/testing/selftests/bpf/test_stacktrace_map.c

View file