[mirror_ubuntu-eoan-kernel.git] / tools / lib / bpf / libbpf_internal.h

/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */

/*
 * Internal libbpf helpers.
 *
 * Copyright (c) 2019 Facebook
 */

#ifndef __LIBBPF_LIBBPF_INTERNAL_H
#define __LIBBPF_LIBBPF_INTERNAL_H

#include "libbpf.h"

#define BTF_INFO_ENC(kind, kind_flag, vlen) \
	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
	((encoding) << 24 | (bits_offset) << 16 | (nr_bits))
#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
	BTF_INT_ENC(encoding, bits_offset, bits)
#define BTF_MEMBER_ENC(name, type, bits_offset) (name), (type), (bits_offset)
#define BTF_PARAM_ENC(name, type) (name), (type)
#define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size)

#ifndef min
# define min(x, y) ((x) < (y) ? (x) : (y))
#endif
#ifndef max
# define max(x, y) ((x) < (y) ? (y) : (x))
#endif

extern void libbpf_print(enum libbpf_print_level level,
			 const char *format, ...)
	__attribute__((format(printf, 2, 3)));

#define __pr(level, fmt, ...)	\
do {				\
	libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__);	\
} while (0)

#define pr_warning(fmt, ...)	__pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
#define pr_info(fmt, ...)	__pr(LIBBPF_INFO, fmt, ##__VA_ARGS__)
#define pr_debug(fmt, ...)	__pr(LIBBPF_DEBUG, fmt, ##__VA_ARGS__)

int libbpf__load_raw_btf(const char *raw_types, size_t types_len,
			 const char *str_sec, size_t str_len);

#endif /* __LIBBPF_LIBBPF_INTERNAL_H */
Commit	Line	Data
d7c4b398 AN	1	/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
	2
	3	/*
	4	* Internal libbpf helpers.
	5	*
	6	* Copyright (c) 2019 Facebook
	7	*/
	8
	9	#ifndef __LIBBPF_LIBBPF_INTERNAL_H
	10	#define __LIBBPF_LIBBPF_INTERNAL_H
	11
1d7a08b3 AN	12	#include "libbpf.h"
1d7a08b3 AN	13
d7c4b398 AN	14	#define BTF_INFO_ENC(kind, kind_flag, vlen) \
	15	((!!(kind_flag) << 31) \| ((kind) << 24) \| ((vlen) & BTF_MAX_VLEN))
	16	#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
	17	#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
	18	((encoding) << 24 \| (bits_offset) << 16 \| (nr_bits))
	19	#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
	20	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
	21	BTF_INT_ENC(encoding, bits_offset, bits)
	22	#define BTF_MEMBER_ENC(name, type, bits_offset) (name), (type), (bits_offset)
	23	#define BTF_PARAM_ENC(name, type) (name), (type)
	24	#define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size)
	25
d7fe74f9 AN	26	#ifndef min
	27	# define min(x, y) ((x) < (y) ? (x) : (y))
	28	#endif
	29	#ifndef max
	30	# define max(x, y) ((x) < (y) ? (y) : (x))
	31	#endif
	32
d72386fe AN	33	extern void libbpf_print(enum libbpf_print_level level,
	34	const char *format, ...)
	35	__attribute__((format(printf, 2, 3)));
	36
	37	#define __pr(level, fmt, ...) \
	38	do { \
	39	libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
	40	} while (0)
	41
	42	#define pr_warning(fmt, ...) __pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
	43	#define pr_info(fmt, ...) __pr(LIBBPF_INFO, fmt, ##__VA_ARGS__)
	44	#define pr_debug(fmt, ...) __pr(LIBBPF_DEBUG, fmt, ##__VA_ARGS__)
	45
cfd49210 MR	46	int libbpf__load_raw_btf(const char *raw_types, size_t types_len,
cfd49210 MR	47	const char *str_sec, size_t str_len);
d7c4b398 AN	48
d7c4b398 AN	49	#endif /* __LIBBPF_LIBBPF_INTERNAL_H */