diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/fexit_sleep.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/fexit_sleep.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/fexit_sleep.c b/tools/testing/selftests/bpf/progs/fexit_sleep.c new file mode 100644 index 0000000000..106dc75efc --- /dev/null +++ b/tools/testing/selftests/bpf/progs/fexit_sleep.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "bpf_misc.h" + +char LICENSE[] SEC("license") = "GPL"; + +int pid = 0; +int fentry_cnt = 0; +int fexit_cnt = 0; + +SEC("fentry/" SYS_PREFIX "sys_nanosleep") +int nanosleep_fentry(void *ctx) +{ + if (bpf_get_current_pid_tgid() >> 32 != pid) + return 0; + + fentry_cnt++; + return 0; +} + +SEC("fexit/" SYS_PREFIX "sys_nanosleep") +int nanosleep_fexit(void *ctx) +{ + if (bpf_get_current_pid_tgid() >> 32 != pid) + return 0; + + fexit_cnt++; + return 0; +} |