tools/testing/selftests/bpf/progs/uptr_map_failure.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/uptr_map_failure.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/uptr_map_failure.c
Extension
.c
Size
711 bytes
Lines
28
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

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */

#include <vmlinux.h>
#include <bpf/bpf_helpers.h>
#include "uptr_test_common.h"

struct {
	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
	__uint(map_flags, BPF_F_NO_PREALLOC);
	__type(key, int);
	__type(value, struct large_uptr);
} large_uptr_map SEC(".maps");

struct {
	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
	__uint(map_flags, BPF_F_NO_PREALLOC);
	__type(key, int);
	__type(value, struct empty_uptr);
} empty_uptr_map SEC(".maps");

struct {
	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
	__uint(map_flags, BPF_F_NO_PREALLOC);
	__type(key, int);
	__type(value, struct kstruct_uptr);
} kstruct_uptr_map SEC(".maps");

Annotation

Implementation Notes