From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- samples/bpf/trace_output_kern.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 samples/bpf/trace_output_kern.c (limited to 'samples/bpf/trace_output_kern.c') diff --git a/samples/bpf/trace_output_kern.c b/samples/bpf/trace_output_kern.c new file mode 100644 index 000000000..b64815af0 --- /dev/null +++ b/samples/bpf/trace_output_kern.c @@ -0,0 +1,31 @@ +#include +#include +#include +#include +#include "trace_common.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("kprobe/" SYSCALL(sys_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; -- cgit v1.2.3