#include #include #include #include "bpf_helpers.h" struct bpf_map_def SEC("maps") my_map = { .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, .key_size = sizeof(int), .value_size = sizeof(u32), .max_entries = 32, }; SEC("kprobe/sys_write") int bpf_prog1(struct pt_regs *ctx) { u64 count; u32 key = bpf_get_smp_processor_id(); char fmt[] = "CPU-%d %llu\n"; count = bpf_perf_event_read(&my_map, key); bpf_trace_printk(fmt, sizeof(fmt), key, count); return 0; } char _license[] SEC("license") = "GPL"; u32 _version SEC("version") = LINUX_VERSION_CODE; itory'/>
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authorDavid S. Miller <davem@davemloft.net>2017-02-11 02:31:11 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-11 02:31:11 -0500
commit35eeacf1820a08305c2b0960febfa190f5a6dd63 (patch)
treef1227c7384ee01d3f029cc5f82223234e6456c5f /include/uapi/asm-generic/ioctl.h
parentbed45f79a2afc9d7c279b880dfcac8f27d513b50 (diff)
parent1ee18329fae936089c6c599250ae92482ff2b81f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/uapi/asm-generic/ioctl.h')