Update to v4.19 kernel headers.
Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
(cherry picked from commit a981e2e52e2e95a65fa9c9b6fb16dcb4c83dd576)
diff --git a/libc/kernel/uapi/linux/btf.h b/libc/kernel/uapi/linux/btf.h
new file mode 100644
index 0000000..33dde5a
--- /dev/null
+++ b/libc/kernel/uapi/linux/btf.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ *** 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 0x0000ffff
+#define BTF_MAX_NAME_OFFSET 0x0000ffff
+#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_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_MAX 11
+#define NR_BTF_KINDS 12
+#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;
+};
+#endif