| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (c) 2019 Facebook |
| |
| #include <linux/bpf.h> |
| #include <stdint.h> |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/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; |
| } |
| |