Two of the BPF selftests hardcode the path to /sys/kernel/btf/vmlinux.
The kernel image could potentially exist at a different location.
libbpf_find_kernel_btf(), as introduced by commit fb2426ad00b1 ("libbpf:
Expose bpf_find_kernel_btf as a LIBBPF_API"), knows about said
locations.
This change switches these two tests over to using this function
instead, making the tests more likely to be runnable when
/sys/kernel/btf/vmlinux may not be present and setting better precedent.
Signed-off-by: Daniel Müller <deso@xxxxxxxxxx>
---
tools/testing/selftests/bpf/prog_tests/libbpf_probes.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c
index 9f766dd..61c81a9 100644
--- a/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c
+++ b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c
@@ -11,8 +11,8 @@ void test_libbpf_probe_prog_types(void)
const struct btf_enum *e;
int i, n, id;
- btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
- if (!ASSERT_OK_PTR(btf, "btf_parse"))
+ btf = libbpf_find_kernel_btf();
+ if (!ASSERT_OK_PTR(btf, "libbpf_find_kernel_btf"))
return;
/* find enum bpf_prog_type and enumerate each value */
@@ -49,8 +49,8 @@ void test_libbpf_probe_map_types(void)
const struct btf_enum *e;
int i, n, id;
- btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
- if (!ASSERT_OK_PTR(btf, "btf_parse"))
+ btf = libbpf_find_kernel_btf();
+ if (!ASSERT_OK_PTR(btf, "libbpf_find_kernel_btf"))
return;
/* find enum bpf_map_type and enumerate each value */
--
2.30.2
