// 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_ints { uint8_t u8_field; int8_t s8_field; uint16_t u16_field; int16_t s16_field; uint32_t u32_field; int32_t s32_field; uint64_t u64_field; int64_t s64_field; }; #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src) SEC("raw_tracepoint/sys_enter") int test_core_ints(void *ctx) { struct core_reloc_ints *in = (void *)&data.in; struct core_reloc_ints *out = (void *)&data.out; if (CORE_READ(&out->u8_field, &in->u8_field) || CORE_READ(&out->s8_field, &in->s8_field) || CORE_READ(&out->u16_field, &in->u16_field) || CORE_READ(&out->s16_field, &in->s16_field) || CORE_READ(&out->u32_field, &in->u32_field) || CORE_READ(&out->s32_field, &in->s32_field) || CORE_READ(&out->u64_field, &in->u64_field) || CORE_READ(&out->s64_field, &in->s64_field)) return 1; return 0; }