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/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
*** To edit the content of this header, modify the corresponding
*** source file (e.g. under external/kernel-headers/original/) then
*** run bionic/libc/kernel/tools/update_all.py
***
*** Any manual change here will be lost the next time this script will
*** be run. You've been warned!
***
****************************************************************************
****************************************************************************/
#ifndef _UAPI__LINUX_BTF_H__
#define _UAPI__LINUX_BTF_H__
#include <linux/types.h>
#define BTF_MAGIC 0xeB9F
#define BTF_VERSION 1
struct btf_header {
__u16 magic;
__u8 version;
__u8 flags;
__u32 hdr_len;
__u32 type_off;
__u32 type_len;
__u32 str_off;
__u32 str_len;
};
#define BTF_MAX_TYPE 0x000fffff
#define BTF_MAX_NAME_OFFSET 0x00ffffff
#define BTF_MAX_VLEN 0xffff
struct btf_type {
__u32 name_off;
__u32 info;
union {
__u32 size;
__u32 type;
};
};
#define BTF_INFO_KIND(info) (((info) >> 24) & 0x1f)
#define BTF_INFO_VLEN(info) ((info) & 0xffff)
#define BTF_INFO_KFLAG(info) ((info) >> 31)
enum {
BTF_KIND_UNKN = 0,
BTF_KIND_INT = 1,
BTF_KIND_PTR = 2,
BTF_KIND_ARRAY = 3,
BTF_KIND_STRUCT = 4,
BTF_KIND_UNION = 5,
BTF_KIND_ENUM = 6,
BTF_KIND_FWD = 7,
BTF_KIND_TYPEDEF = 8,
BTF_KIND_VOLATILE = 9,
BTF_KIND_CONST = 10,
BTF_KIND_RESTRICT = 11,
BTF_KIND_FUNC = 12,
BTF_KIND_FUNC_PROTO = 13,
BTF_KIND_VAR = 14,
BTF_KIND_DATASEC = 15,
BTF_KIND_FLOAT = 16,
BTF_KIND_DECL_TAG = 17,
BTF_KIND_TYPE_TAG = 18,
BTF_KIND_ENUM64 = 19,
NR_BTF_KINDS,
BTF_KIND_MAX = NR_BTF_KINDS - 1,
};
#define BTF_INT_ENCODING(VAL) (((VAL) & 0x0f000000) >> 24)
#define BTF_INT_OFFSET(VAL) (((VAL) & 0x00ff0000) >> 16)
#define BTF_INT_BITS(VAL) ((VAL) & 0x000000ff)
#define BTF_INT_SIGNED (1 << 0)
#define BTF_INT_CHAR (1 << 1)
#define BTF_INT_BOOL (1 << 2)
struct btf_enum {
__u32 name_off;
__s32 val;
};
struct btf_array {
__u32 type;
__u32 index_type;
__u32 nelems;
};
struct btf_member {
__u32 name_off;
__u32 type;
__u32 offset;
};
#define BTF_MEMBER_BITFIELD_SIZE(val) ((val) >> 24)
#define BTF_MEMBER_BIT_OFFSET(val) ((val) & 0xffffff)
struct btf_param {
__u32 name_off;
__u32 type;
};
enum {
BTF_VAR_STATIC = 0,
BTF_VAR_GLOBAL_ALLOCATED = 1,
BTF_VAR_GLOBAL_EXTERN = 2,
};
enum btf_func_linkage {
BTF_FUNC_STATIC = 0,
BTF_FUNC_GLOBAL = 1,
BTF_FUNC_EXTERN = 2,
};
struct btf_var {
__u32 linkage;
};
struct btf_var_secinfo {
__u32 type;
__u32 offset;
__u32 size;
};
struct btf_decl_tag {
__s32 component_idx;
};
struct btf_enum64 {
__u32 name_off;
__u32 val_lo32;
__u32 val_hi32;
};
#endif
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