1// SPDX-License-Identifier: GPL-2.0 2// Copyright (c) 2019 Facebook 3 4#include <linux/bpf.h> 5#include <stdint.h> 6#include <bpf/bpf_helpers.h> 7#include <bpf/bpf_core_read.h> 8 9char _license[] SEC("license") = "GPL"; 10 11struct { 12 char in[256]; 13 char out[256]; 14} data = {}; 15 16enum core_reloc_primitives_enum { 17 A = 0, 18 B = 1, 19}; 20 21struct core_reloc_primitives { 22 char a; 23 int b; 24 enum core_reloc_primitives_enum c; 25 void *d; 26 int (*f)(const char *); 27}; 28 29#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) 30 31SEC("raw_tracepoint/sys_enter") 32int test_core_primitives(void *ctx) 33{ 34 struct core_reloc_primitives *in = (void *)&data.in; 35 struct core_reloc_primitives *out = (void *)&data.out; 36 37 if (CORE_READ(&out->a, &in->a) || 38 CORE_READ(&out->b, &in->b) || 39 CORE_READ(&out->c, &in->c) || 40 CORE_READ(&out->d, &in->d) || 41 CORE_READ(&out->f, &in->f)) 42 return 1; 43 44 return 0; 45} 46 47