Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2015 Huawei Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (C) 2017 Nicira, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #undef _GNU_SOURCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "libbpf.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /* make sure libbpf doesn't use kernel-only integer typedefs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define ERRNO_OFFSET(e)		((e) - __LIBBPF_ERRNO__START)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define ERRCODE_OFFSET(c)	ERRNO_OFFSET(LIBBPF_ERRNO__##c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define NR_ERRNO	(__LIBBPF_ERRNO__END - __LIBBPF_ERRNO__START)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static const char *libbpf_strerror_table[NR_ERRNO] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	[ERRCODE_OFFSET(LIBELF)]	= "Something wrong in libelf",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	[ERRCODE_OFFSET(FORMAT)]	= "BPF object format invalid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	[ERRCODE_OFFSET(KVERSION)]	= "'version' section incorrect or lost",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	[ERRCODE_OFFSET(ENDIAN)]	= "Endian mismatch",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	[ERRCODE_OFFSET(INTERNAL)]	= "Internal error in libbpf",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	[ERRCODE_OFFSET(RELOC)]		= "Relocation failed",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	[ERRCODE_OFFSET(VERIFY)]	= "Kernel verifier blocks program loading",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	[ERRCODE_OFFSET(PROG2BIG)]	= "Program too big",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	[ERRCODE_OFFSET(KVER)]		= "Incorrect kernel version",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	[ERRCODE_OFFSET(PROGTYPE)]	= "Kernel doesn't support this program type",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	[ERRCODE_OFFSET(WRNGPID)]	= "Wrong pid in netlink message",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	[ERRCODE_OFFSET(INVSEQ)]	= "Invalid netlink sequence",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	[ERRCODE_OFFSET(NLPARSE)]	= "Incorrect netlink message parsing",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int libbpf_strerror(int err, char *buf, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	if (!buf || !size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	err = err > 0 ? err : -err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	if (err < __LIBBPF_ERRNO__START) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		ret = strerror_r(err, buf, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		buf[size - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	if (err < __LIBBPF_ERRNO__END) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		const char *msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		msg = libbpf_strerror_table[ERRNO_OFFSET(err)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		snprintf(buf, size, "%s", msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		buf[size - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	snprintf(buf, size, "Unknown libbpf error %d", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	buf[size - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }