5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
32 lines
660 B
C
32 lines
660 B
C
#include <linux/ptrace.h>
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#include <linux/version.h>
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#include <uapi/linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include "trace_common.h"
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struct {
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__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
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__uint(key_size, sizeof(int));
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__uint(value_size, sizeof(u32));
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__uint(max_entries, 2);
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} my_map SEC(".maps");
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SEC("kprobe/" SYSCALL(sys_write))
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int bpf_prog1(struct pt_regs *ctx)
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{
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struct S {
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u64 pid;
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u64 cookie;
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} data;
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data.pid = bpf_get_current_pid_tgid();
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data.cookie = 0x12345678;
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bpf_perf_event_output(ctx, &my_map, 0, &data, sizeof(data));
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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u32 _version SEC("version") = LINUX_VERSION_CODE;
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