tools/testing/selftests/bpf/uptr_test_common.h
Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/uptr_test_common.h
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/bpf/uptr_test_common.h- Extension
.h- Size
- 1067 bytes
- Lines
- 64
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
struct user_datastruct nested_udatastruct value_typestruct value_lock_typestruct large_datastruct large_uptrstruct empty_datastruct empty_uptrstruct kstruct_uptr
Annotated Snippet
struct user_data {
int a;
int b;
int result;
int nested_result;
};
struct nested_udata {
struct user_data __uptr *udata;
};
struct value_type {
struct user_data __uptr *udata;
struct cgroup __kptr *cgrp;
struct nested_udata nested;
};
struct value_lock_type {
struct user_data __uptr *udata;
struct bpf_spin_lock lock;
};
struct large_data {
__u8 one_page[PAGE_SIZE];
int a;
};
struct large_uptr {
struct large_data __uptr *udata;
};
struct empty_data {
};
struct empty_uptr {
struct empty_data __uptr *udata;
};
struct kstruct_uptr {
struct cgroup __uptr *cgrp;
};
#endif
Annotation
- Detected declarations: `struct user_data`, `struct nested_udata`, `struct value_type`, `struct value_lock_type`, `struct large_data`, `struct large_uptr`, `struct empty_data`, `struct empty_uptr`, `struct kstruct_uptr`.
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: source implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.