// 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 = {}; struct core_reloc_arrays_output { int a2; char b123; int c1c; int d00d; }; struct core_reloc_arrays_substruct { int c; int d; }; struct core_reloc_arrays { int a[5]; char b[2][3][4]; struct core_reloc_arrays_substruct c[3]; struct core_reloc_arrays_substruct d[1][2]; }; #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) SEC("raw_tracepoint/sys_enter") int test_core_arrays(void *ctx) { struct core_reloc_arrays *in = (void *)&data.in; struct core_reloc_arrays_output *out = (void *)&data.out; /* in->a[2] */ if (CORE_READ(&out->a2, &in->a[2])) return 1; /* in->b[1][2][3] */ if (CORE_READ(&out->b123, &in->b[1][2][3])) return 1; /* in->c[1].c */ if (CORE_READ(&out->c1c, &in->c[1].c)) return 1; /* in->d[0][0].d */ if (CORE_READ(&out->d00d, &in->d[0][0].d)) return 1; return 0; }