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bpf: btf: Clean up btf.h in uapi

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This patch cleans up btf.h in uapi:
1) Rename "name" to "name_off" to better reflect it is an offset to the
   string section instead of a char array.
2) Remove unused value BTF_FLAGS_COMPR and BTF_MAGIC_SWAP

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Martin KaFai Lau
2018-04-21 09:48:23 -07:00
committed by Daniel Borkmann
parent aaa6452763
commit fbcf93ebca
4 changed files with 17 additions and 21 deletions
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8
tools/include/uapi/linux/btf.h
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@@ -6,9 +6,7 @@
#include <linux/types.h>
#define BTF_MAGIC 0xeB9F
#define BTF_MAGIC_SWAP 0x9FeB
#define BTF_VERSION 1
#define BTF_FLAGS_COMPR 0x01
struct btf_header {
__u16 magic;
@@ -43,7 +41,7 @@ struct btf_header {
#define BTF_STR_OFFSET(ref) ((ref) & BTF_MAX_NAME_OFFSET)
struct btf_type {
__u32 name;
__u32 name_off;
/* "info" bits arrangement
* bits 0-15: vlen (e.g. # of struct's members)
* bits 16-23: unused
@@ -105,7 +103,7 @@ struct btf_type {
* info in "struct btf_type").
*/
struct btf_enum {
__u32 name;
__u32 name_off;
__s32 val;
};
@@ -122,7 +120,7 @@ struct btf_array {
* "struct btf_type").
*/
struct btf_member {
__u32 name;
__u32 name_off;
__u32 type;
__u32 offset; /* offset in bits */
};