tools/testing/selftests/bpf/progs/test_core_reloc_ints.c
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/progs/test_core_reloc_ints.c- Extension
.c- Size
- 1122 bytes
- Lines
- 48
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/bpf.hstdint.hbpf/bpf_helpers.hbpf/bpf_core_read.h
Detected Declarations
struct core_reloc_intsfunction test_core_ints
Annotated Snippet
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;
}
Annotation
- Immediate include surface: `linux/bpf.h`, `stdint.h`, `bpf/bpf_helpers.h`, `bpf/bpf_core_read.h`.
- Detected declarations: `struct core_reloc_ints`, `function test_core_ints`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.