// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> #include <stdint.h> #include "bpf_helpers.h" #include "bpf_core_read.h" char _license[] SEC("license") = "GPL"; struct { char in[256]; char out[256]; } data = {}; enum core_reloc_primitives_enum { A = 0, B = 1, }; struct core_reloc_primitives { char a; int b; enum core_reloc_primitives_enum c; void *d; int (*f)(const char *); }; #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) SEC("raw_tracepoint/sys_enter") int test_core_primitives(void *ctx) { struct core_reloc_primitives *in = (void *)&data.in; struct core_reloc_primitives *out = (void *)&data.out; if (CORE_READ(&out->a, &in->a) || CORE_READ(&out->b, &in->b) || CORE_READ(&out->c, &in->c) || CORE_READ(&out->d, &in->d) || CORE_READ(&out->f, &in->f)) return 1; return 0; }