| Christopher Ferris | 9ce2884 | 2018-10-25 12:11:39 -0700 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | **************************************************************************** |
| 3 | *** |
| 4 | *** This header was automatically generated from a Linux kernel header |
| 5 | *** of the same name, to make information necessary for userspace to |
| 6 | *** call into the kernel available to libc. It contains only constants, |
| 7 | *** structures, and macros generated from the original header, and thus, |
| 8 | *** contains no copyrightable information. |
| 9 | *** |
| 10 | *** To edit the content of this header, modify the corresponding |
| 11 | *** source file (e.g. under external/kernel-headers/original/) then |
| 12 | *** run bionic/libc/kernel/tools/update_all.py |
| 13 | *** |
| 14 | *** Any manual change here will be lost the next time this script will |
| 15 | *** be run. You've been warned! |
| 16 | *** |
| 17 | **************************************************************************** |
| 18 | ****************************************************************************/ |
| 19 | #ifndef _UAPI__LINUX_BTF_H__ |
| 20 | #define _UAPI__LINUX_BTF_H__ |
| 21 | #include <linux/types.h> |
| 22 | #define BTF_MAGIC 0xeB9F |
| 23 | #define BTF_VERSION 1 |
| 24 | struct btf_header { |
| 25 | __u16 magic; |
| 26 | __u8 version; |
| 27 | __u8 flags; |
| 28 | __u32 hdr_len; |
| 29 | __u32 type_off; |
| 30 | __u32 type_len; |
| 31 | __u32 str_off; |
| 32 | __u32 str_len; |
| 33 | }; |
| 34 | #define BTF_MAX_TYPE 0x0000ffff |
| 35 | #define BTF_MAX_NAME_OFFSET 0x0000ffff |
| 36 | #define BTF_MAX_VLEN 0xffff |
| 37 | struct btf_type { |
| 38 | __u32 name_off; |
| 39 | __u32 info; |
| 40 | union { |
| 41 | __u32 size; |
| 42 | __u32 type; |
| 43 | }; |
| 44 | }; |
| 45 | #define BTF_INFO_KIND(info) (((info) >> 24) & 0x0f) |
| 46 | #define BTF_INFO_VLEN(info) ((info) & 0xffff) |
| 47 | #define BTF_KIND_UNKN 0 |
| 48 | #define BTF_KIND_INT 1 |
| 49 | #define BTF_KIND_PTR 2 |
| 50 | #define BTF_KIND_ARRAY 3 |
| 51 | #define BTF_KIND_STRUCT 4 |
| 52 | #define BTF_KIND_UNION 5 |
| 53 | #define BTF_KIND_ENUM 6 |
| 54 | #define BTF_KIND_FWD 7 |
| 55 | #define BTF_KIND_TYPEDEF 8 |
| 56 | #define BTF_KIND_VOLATILE 9 |
| 57 | #define BTF_KIND_CONST 10 |
| 58 | #define BTF_KIND_RESTRICT 11 |
| 59 | #define BTF_KIND_MAX 11 |
| 60 | #define NR_BTF_KINDS 12 |
| 61 | #define BTF_INT_ENCODING(VAL) (((VAL) & 0x0f000000) >> 24) |
| 62 | #define BTF_INT_OFFSET(VAL) (((VAL & 0x00ff0000)) >> 16) |
| 63 | #define BTF_INT_BITS(VAL) ((VAL) & 0x000000ff) |
| 64 | #define BTF_INT_SIGNED (1 << 0) |
| 65 | #define BTF_INT_CHAR (1 << 1) |
| 66 | #define BTF_INT_BOOL (1 << 2) |
| 67 | struct btf_enum { |
| 68 | __u32 name_off; |
| 69 | __s32 val; |
| 70 | }; |
| 71 | struct btf_array { |
| 72 | __u32 type; |
| 73 | __u32 index_type; |
| 74 | __u32 nelems; |
| 75 | }; |
| 76 | struct btf_member { |
| 77 | __u32 name_off; |
| 78 | __u32 type; |
| 79 | __u32 offset; |
| 80 | }; |
| 81 | #endif |