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mirror uapi/linux/bpf_common.h file (#2)

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bcc still has this file in its src/cc/compat/linux directory.
Add this file to libbpf as well.

Signed-off-by: Yonghong Song <yhs@fb.com>
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yonghong-song 2018-10-12 12:57:55 -07:00 committed by GitHub
parent a907cbaee9
commit e5c75f8e94
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1
README
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@ -5,6 +5,7 @@ bpf-next/tools/lib/bpf directory plus its supporting header files.
The following files will by sync'ed with bpf-next repo:
src/ <-> bpf-next/tools/lib/bpf/
include/uapi/linux/bpf_common.h <-> bpf-next/tools/include/uapi/linux/bpf_common.h
include/uapi/linux/bpf.h <-> bpf-next/tools/include/uapi/linux/bpf.h
include/uapi/linux/btf.h <-> bpf-next/tools/include/uapi/linux/btf.h
include/uapi/linux/if_link.h <-> bpf-next/tools/include/uapi/linux/if_link.h

57
include/uapi/linux/bpf_common.h Normal file
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@ -0,0 +1,57 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__LINUX_BPF_COMMON_H__
#define _UAPI__LINUX_BPF_COMMON_H__
/* Instruction classes */
#define BPF_CLASS(code) ((code) & 0x07)
#define BPF_LD 0x00
#define BPF_LDX 0x01
#define BPF_ST 0x02
#define BPF_STX 0x03
#define BPF_ALU 0x04
#define BPF_JMP 0x05
#define BPF_RET 0x06
#define BPF_MISC 0x07
/* ld/ldx fields */
#define BPF_SIZE(code) ((code) & 0x18)
#define BPF_W 0x00 /* 32-bit */
#define BPF_H 0x08 /* 16-bit */
#define BPF_B 0x10 /* 8-bit */
/* eBPF BPF_DW 0x18 64-bit */
#define BPF_MODE(code) ((code) & 0xe0)
#define BPF_IMM 0x00
#define BPF_ABS 0x20
#define BPF_IND 0x40
#define BPF_MEM 0x60
#define BPF_LEN 0x80
#define BPF_MSH 0xa0
/* alu/jmp fields */
#define BPF_OP(code) ((code) & 0xf0)
#define BPF_ADD 0x00
#define BPF_SUB 0x10
#define BPF_MUL 0x20
#define BPF_DIV 0x30
#define BPF_OR 0x40
#define BPF_AND 0x50
#define BPF_LSH 0x60
#define BPF_RSH 0x70
#define BPF_NEG 0x80
#define BPF_MOD 0x90
#define BPF_XOR 0xa0
#define BPF_JA 0x00
#define BPF_JEQ 0x10
#define BPF_JGT 0x20
#define BPF_JGE 0x30
#define BPF_JSET 0x40
#define BPF_SRC(code) ((code) & 0x08)
#define BPF_K 0x00
#define BPF_X 0x08
#ifndef BPF_MAXINSNS
#define BPF_MAXINSNS 4096
#endif
#endif /* _UAPI__LINUX_BPF_COMMON_H__ */