| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** 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) & 0x0f) |
| #define BTF_INFO_VLEN(info) ((info) & 0xffff) |
| #define BTF_INFO_KFLAG(info) ((info) >> 31) |
| #define BTF_KIND_UNKN 0 |
| #define BTF_KIND_INT 1 |
| #define BTF_KIND_PTR 2 |
| #define BTF_KIND_ARRAY 3 |
| #define BTF_KIND_STRUCT 4 |
| #define BTF_KIND_UNION 5 |
| #define BTF_KIND_ENUM 6 |
| #define BTF_KIND_FWD 7 |
| #define BTF_KIND_TYPEDEF 8 |
| #define BTF_KIND_VOLATILE 9 |
| #define BTF_KIND_CONST 10 |
| #define BTF_KIND_RESTRICT 11 |
| #define BTF_KIND_FUNC 12 |
| #define BTF_KIND_FUNC_PROTO 13 |
| #define BTF_KIND_VAR 14 |
| #define BTF_KIND_DATASEC 15 |
| #define BTF_KIND_MAX BTF_KIND_DATASEC |
| #define NR_BTF_KINDS (BTF_KIND_MAX + 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; |
| }; |
| #endif |
