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.

Dependency Surface

Detected Declarations

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

Implementation Notes