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selftests/bpf: Convert some selftests to high-level BPF map APIs

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Convert a bunch of selftests to using newly added high-level BPF map
APIs.

This change exposed that map_kptr selftests allocated too big buffer,
which is fixed in this patch as well.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220512220713.2617964-2-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko
2022-05-12 15:07:13 -07:00
committed by Daniel Borkmann
parent 737d0646a8
commit b2531d4bdc
8 changed files with 61 additions and 47 deletions
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8
tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
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@@ -8,7 +8,7 @@ void test_stacktrace_build_id(void)
int control_map_fd, stackid_hmap_fd, stackmap_fd, stack_amap_fd;
struct test_stacktrace_build_id *skel;
int err, stack_trace_len;
__u32 key, previous_key, val, duration = 0;
__u32 key, prev_key, val, duration = 0;
char buf[256];
int i, j;
struct bpf_stack_build_id id_offs[PERF_MAX_STACK_DEPTH];
@@ -58,7 +58,7 @@ retry:
"err %d errno %d\n", err, errno))
goto cleanup;
err = bpf_map_get_next_key(stackmap_fd, NULL, &key);
err = bpf_map__get_next_key(skel->maps.stackmap, NULL, &key, sizeof(key));
if (CHECK(err, "get_next_key from stackmap",
"err %d, errno %d\n", err, errno))
goto cleanup;
@@ -79,8 +79,8 @@ retry:
if (strstr(buf, build_id) != NULL)
build_id_matches = 1;
}
previous_key = key;
} while (bpf_map_get_next_key(stackmap_fd, &previous_key, &key) == 0);
prev_key = key;
} while (bpf_map__get_next_key(skel->maps.stackmap, &prev_key, &key, sizeof(key)) == 0);
/* stack_map_get_build_id_offset() is racy and sometimes can return
* BPF_STACK_BUILD_ID_IP instead of BPF_STACK_BUILD_ID_VALID;