diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2022-04-28 11:53:49 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-04-28 23:46:04 +0200 |
| commit | 32c03c4954a03d46f603f94acac9d2705bd5c9c6 (patch) | |
| tree | 749d2f957655dcb434d8b2b502b95d18052258da /tools/testing/selftests/bpf/progs/test_attach_probe.c | |
| parent | cc7d8f2c8ecc003a67d4cf189d04124461524a16 (diff) | |
selftests/bpf: Use target-less SEC() definitions in various tests
Add new or modify existing SEC() definitions to be target-less and
validate that libbpf handles such program definitions correctly.
For kprobe/kretprobe we also add explicit test that generic
bpf_program__attach() works in cases when kprobe definition contains
proper target. It wasn't previously tested as selftests code always
explicitly specified the target regardless.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220428185349.3799599-4-andrii@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_attach_probe.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_attach_probe.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_attach_probe.c b/tools/testing/selftests/bpf/progs/test_attach_probe.c index af994d16bb10..ce9acf4db8d2 100644 --- a/tools/testing/selftests/bpf/progs/test_attach_probe.c +++ b/tools/testing/selftests/bpf/progs/test_attach_probe.c @@ -5,9 +5,12 @@ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> +#include "bpf_misc.h" int kprobe_res = 0; +int kprobe2_res = 0; int kretprobe_res = 0; +int kretprobe2_res = 0; int uprobe_res = 0; int uretprobe_res = 0; int uprobe_byname_res = 0; @@ -15,20 +18,34 @@ int uretprobe_byname_res = 0; int uprobe_byname2_res = 0; int uretprobe_byname2_res = 0; -SEC("kprobe/sys_nanosleep") +SEC("kprobe") int handle_kprobe(struct pt_regs *ctx) { kprobe_res = 1; return 0; } -SEC("kretprobe/sys_nanosleep") -int BPF_KRETPROBE(handle_kretprobe) +SEC("kprobe/" SYS_PREFIX "sys_nanosleep") +int BPF_KPROBE(handle_kprobe_auto) +{ + kprobe2_res = 11; + return 0; +} + +SEC("kretprobe") +int handle_kretprobe(struct pt_regs *ctx) { kretprobe_res = 2; return 0; } +SEC("kretprobe/" SYS_PREFIX "sys_nanosleep") +int BPF_KRETPROBE(handle_kretprobe_auto) +{ + kretprobe2_res = 22; + return 0; +} + SEC("uprobe") int handle_uprobe(struct pt_regs *ctx) { |