tools/perf/util/bpf_skel/vmlinux/vmlinux.h

File Facts

System

Linux kernel

Corpus path

tools/perf/util/bpf_skel/vmlinux/vmlinux.h

Extension

.h

Size

4966 bytes

Lines

216

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

• linux/stddef.h
• linux/bpf.h
• linux/types.h
• linux/perf_event.h
• stdbool.h

Detected Declarations

• struct timespec64
• struct raw_spinlock
• struct sighand_struct
• struct rw_semaphore
• struct mutex
• struct kernfs_node
• struct cgroup
• struct cgroup_subsys_state
• struct css_set
• struct mm_struct
• struct task_struct
• struct trace_entry
• struct trace_event_raw_irq_handler_entry
• struct trace_event_raw_irq_handler_exit
• struct trace_event_raw_softirq
• struct trace_event_raw_workqueue_execute_start
• struct trace_event_raw_workqueue_execute_end
• struct trace_event_raw_workqueue_activate_work
• struct perf_sample_data
• struct perf_event
• struct bpf_perf_event_data_kern
• struct rq
• struct kmem_cache
• struct bpf_iter__kmem_cache
• struct zone
• struct pglist_data
• enum cgroup_subsys_id

Annotated Snippet

struct timespec64 {
        time64_t        tv_sec;
        long int        tv_nsec;
};

enum cgroup_subsys_id {
	perf_event_cgrp_id  = 8,
};

enum {
	HI_SOFTIRQ = 0,
	TIMER_SOFTIRQ,
	NET_TX_SOFTIRQ,
	NET_RX_SOFTIRQ,
	BLOCK_SOFTIRQ,
	IRQ_POLL_SOFTIRQ,
	TASKLET_SOFTIRQ,
	SCHED_SOFTIRQ,
	HRTIMER_SOFTIRQ,
	RCU_SOFTIRQ,    /* Preferable RCU should always be the last softirq */

	NR_SOFTIRQS
};

typedef struct {
	s64	counter;
} __attribute__((preserve_access_index)) atomic64_t;

typedef atomic64_t atomic_long_t;

struct raw_spinlock {
	int rawlock;
} __attribute__((preserve_access_index));

typedef struct raw_spinlock raw_spinlock_t;

typedef struct {
	struct raw_spinlock rlock;
} __attribute__((preserve_access_index)) spinlock_t;

struct sighand_struct {
	spinlock_t siglock;
} __attribute__((preserve_access_index));

struct rw_semaphore {
	atomic_long_t owner;
} __attribute__((preserve_access_index));

struct mutex {
	atomic_long_t owner;
} __attribute__((preserve_access_index));

struct kernfs_node {
	u64 id;
} __attribute__((preserve_access_index));

struct cgroup {
	struct kernfs_node *kn;
	int                level;
}  __attribute__((preserve_access_index));

struct cgroup_subsys_state {
	struct cgroup *cgroup;
} __attribute__((preserve_access_index));

struct css_set {
	struct cgroup_subsys_state *subsys[13];
	struct cgroup *dfl_cgrp;
} __attribute__((preserve_access_index));

struct mm_struct {
	struct rw_semaphore mmap_lock;
} __attribute__((preserve_access_index));

struct task_struct {
	unsigned int	      flags;
	struct mm_struct      *mm;
	pid_t		      pid;
	pid_t		      tgid;
	char		      comm[16];
	struct sighand_struct *sighand;
	struct css_set	      *cgroups;
} __attribute__((preserve_access_index));

struct trace_entry {
	short unsigned int type;
	unsigned char	   flags;
	unsigned char	   preempt_count;
	int		   pid;
} __attribute__((preserve_access_index));

Annotation

• Immediate include surface: `linux/stddef.h`, `linux/bpf.h`, `linux/types.h`, `linux/perf_event.h`, `stdbool.h`.
• Detected declarations: `struct timespec64`, `struct raw_spinlock`, `struct sighand_struct`, `struct rw_semaphore`, `struct mutex`, `struct kernfs_node`, `struct cgroup`, `struct cgroup_subsys_state`, `struct css_set`, `struct mm_struct`.
• 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.