On Thu, May 14, 2020 at 03:48:20PM -0700, Andrii Nakryiko wrote:

On Wed, May 6, 2020 at 6:32 AM Jiri Olsa [off-list ref] wrote:

quoted

Adding test for d_path helper which is pretty much
copied from Wenbo Zhang's test for bpf_get_fd_path,
which never made it in.

I've failed so far to compile the test with <linux/fs.h>
kernel header, so for now adding 'struct file' with f_path
member that has same offset as kernel's file object.

Switch to using vmlinux.h? It would also be nice to use skeletons
instead of bpf_object__xxx API.

I just spot it this week when checking for something else.. yep, nice ;-)

thanks,
jirka

quoted

Original-patch-by: Wenbo Zhang [off-list ref]
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 .../testing/selftests/bpf/prog_tests/d_path.c | 196 ++++++++++++++++++
 .../testing/selftests/bpf/progs/test_d_path.c |  71 +++++++
 2 files changed, 267 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/d_path.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_d_path.c

[...]