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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /samples/bpf/trace_output.bpf.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'samples/bpf/trace_output.bpf.c')
-rw-r--r--samples/bpf/trace_output.bpf.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/samples/bpf/trace_output.bpf.c b/samples/bpf/trace_output.bpf.c
new file mode 100644
index 0000000000..565a73b51b
--- /dev/null
+++ b/samples/bpf/trace_output.bpf.c
@@ -0,0 +1,29 @@
+#include "vmlinux.h"
+#include <linux/version.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+ __uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+ __uint(key_size, sizeof(int));
+ __uint(value_size, sizeof(u32));
+ __uint(max_entries, 2);
+} my_map SEC(".maps");
+
+SEC("ksyscall/write")
+int bpf_prog1(struct pt_regs *ctx)
+{
+ struct S {
+ u64 pid;
+ u64 cookie;
+ } data;
+
+ data.pid = bpf_get_current_pid_tgid();
+ data.cookie = 0x12345678;
+
+ bpf_perf_event_output(ctx, &my_map, 0, &data, sizeof(data));
+
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";
+u32 _version SEC("version") = LINUX_VERSION_CODE;