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authorJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2020-04-16 14:35:16 +0300
commit2b703bbda2713fd2a7d98029ea6c44f9c3159f34 (patch)
tree00aabbb35186a4541ccccf89dead04e251d0541d /tools/testing/selftests/bpf/progs/test_vmlinux.c
parentdrm/i915: HDCP: fix Ri prime check done during link check (diff)
parentLinux 5.7-rc1 (diff)
downloadwireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.tar.xz
wireguard-linux-2b703bbda2713fd2a7d98029ea6c44f9c3159f34.zip
Merge drm/drm-next into drm-intel-next-queued
Backmerging in order to pull "topic/phy-compliance". Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_vmlinux.c')
-rw-r--r--tools/testing/selftests/bpf/progs/test_vmlinux.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_vmlinux.c b/tools/testing/selftests/bpf/progs/test_vmlinux.c
new file mode 100644
index 000000000000..5611b564d3b1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_vmlinux.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <asm/unistd.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+#define MY_TV_NSEC 1337
+
+bool tp_called = false;
+bool raw_tp_called = false;
+bool tp_btf_called = false;
+bool kprobe_called = false;
+bool fentry_called = false;
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int handle__tp(struct trace_event_raw_sys_enter *args)
+{
+ struct __kernel_timespec *ts;
+
+ if (args->id != __NR_nanosleep)
+ return 0;
+
+ ts = (void *)args->args[0];
+ if (BPF_CORE_READ(ts, tv_nsec) != MY_TV_NSEC)
+ return 0;
+
+ tp_called = true;
+ return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handle__raw_tp, struct pt_regs *regs, long id)
+{
+ struct __kernel_timespec *ts;
+
+ if (id != __NR_nanosleep)
+ return 0;
+
+ ts = (void *)PT_REGS_PARM1_CORE(regs);
+ if (BPF_CORE_READ(ts, tv_nsec) != MY_TV_NSEC)
+ return 0;
+
+ raw_tp_called = true;
+ return 0;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(handle__tp_btf, struct pt_regs *regs, long id)
+{
+ struct __kernel_timespec *ts;
+
+ if (id != __NR_nanosleep)
+ return 0;
+
+ ts = (void *)PT_REGS_PARM1_CORE(regs);
+ if (BPF_CORE_READ(ts, tv_nsec) != MY_TV_NSEC)
+ return 0;
+
+ tp_btf_called = true;
+ return 0;
+}
+
+SEC("kprobe/hrtimer_nanosleep")
+int BPF_KPROBE(handle__kprobe,
+ ktime_t rqtp, enum hrtimer_mode mode, clockid_t clockid)
+{
+ if (rqtp == MY_TV_NSEC)
+ kprobe_called = true;
+ return 0;
+}
+
+SEC("fentry/hrtimer_nanosleep")
+int BPF_PROG(handle__fentry,
+ ktime_t rqtp, enum hrtimer_mode mode, clockid_t clockid)
+{
+ if (rqtp == MY_TV_NSEC)
+ fentry_called = true;
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";