diff options
| author | Maxime Ripard <[email protected]> | 2021-04-26 12:03:09 +0000 |
|---|---|---|
| committer | Maxime Ripard <[email protected]> | 2021-04-26 12:03:09 +0000 |
| commit | 355b60296143a090039211c5f0e1463f84aab65a (patch) | |
| tree | b74d4ef2aea66252ea9cf77c847de6c6e72a02b7 /tools/testing/selftests/bpf/progs/fexit_sleep.c | |
| parent | drm: Remove DRM_KMS_FB_HELPER Kconfig option (diff) | |
| parent | Merge tag 'drm-misc-next-fixes-2021-04-22' of git://anongit.freedesktop.org/d... (diff) | |
| download | kernel-355b60296143a090039211c5f0e1463f84aab65a.tar.gz kernel-355b60296143a090039211c5f0e1463f84aab65a.zip | |
Merge drm/drm-next into drm-misc-next
Christian needs some patches from drm/next
Signed-off-by: Maxime Ripard <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/fexit_sleep.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/fexit_sleep.c | 31 |
1 files changed, 31 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 000000000000..03a672d76353 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/fexit_sleep.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Facebook */ +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +char LICENSE[] SEC("license") = "GPL"; + +int pid = 0; +int fentry_cnt = 0; +int fexit_cnt = 0; + +SEC("fentry/__x64_sys_nanosleep") +int BPF_PROG(nanosleep_fentry, const struct pt_regs *regs) +{ + if ((int)bpf_get_current_pid_tgid() != pid) + return 0; + + fentry_cnt++; + return 0; +} + +SEC("fexit/__x64_sys_nanosleep") +int BPF_PROG(nanosleep_fexit, const struct pt_regs *regs, int ret) +{ + if ((int)bpf_get_current_pid_tgid() != pid) + return 0; + + fexit_cnt++; + return 0; +} |