| Server IP : 74.208.127.88 / Your IP : 216.73.216.149 Web Server : Apache/2.4.41 (Ubuntu) System : Linux ubuntu 5.4.0-163-generic #180-Ubuntu SMP Tue Sep 5 13:21:23 UTC 2023 x86_64 User : www-data ( 33) PHP Version : 7.4.3-4ubuntu2.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /proc/self/root/proc/self/root/lib/modules/5.4.0-163-generic/build/include/linux/ |
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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2018 Facebook */
#ifndef _LINUX_BTF_H
#define _LINUX_BTF_H 1
#include <linux/types.h>
struct btf;
struct btf_member;
struct btf_type;
union bpf_attr;
extern const struct file_operations btf_fops;
void btf_put(struct btf *btf);
int btf_new_fd(const union bpf_attr *attr);
struct btf *btf_get_by_fd(int fd);
int btf_get_info_by_fd(const struct btf *btf,
const union bpf_attr *attr,
union bpf_attr __user *uattr);
/* Figure out the size of a type_id. If type_id is a modifier
* (e.g. const), it will be resolved to find out the type with size.
*
* For example:
* In describing "const void *", type_id is "const" and "const"
* refers to "void *". The return type will be "void *".
*
* If type_id is a simple "int", then return type will be "int".
*
* @btf: struct btf object
* @type_id: Find out the size of type_id. The type_id of the return
* type is set to *type_id.
* @ret_size: It can be NULL. If not NULL, the size of the return
* type is set to *ret_size.
* Return: The btf_type (resolved to another type with size info if needed).
* NULL is returned if type_id itself does not have size info
* (e.g. void) or it cannot be resolved to another type that
* has size info.
* *type_id and *ret_size will not be changed in the
* NULL return case.
*/
const struct btf_type *btf_type_id_size(const struct btf *btf,
u32 *type_id,
u32 *ret_size);
void btf_type_seq_show(const struct btf *btf, u32 type_id, void *obj,
struct seq_file *m);
int btf_get_fd_by_id(u32 id);
u32 btf_id(const struct btf *btf);
bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
const struct btf_member *m,
u32 expected_offset, u32 expected_size);
int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
bool btf_type_is_void(const struct btf_type *t);
#ifdef CONFIG_BPF_SYSCALL
const struct btf_type *btf_type_by_id(const struct btf *btf, u32 type_id);
const char *btf_name_by_offset(const struct btf *btf, u32 offset);
#else
static inline const struct btf_type *btf_type_by_id(const struct btf *btf,
u32 type_id)
{
return NULL;
}
static inline const char *btf_name_by_offset(const struct btf *btf,
u32 offset)
{
return NULL;
}
#endif
#endif