[thirdparty/linux.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

#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)

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
	12	#define BTF_INFO_ENC(kind, kind_flag, vlen) \
	13	((!!(kind_flag) << 31) \| ((kind) << 24) \| ((vlen) & BTF_MAX_VLEN))
	14	#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
	15	#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
	16	((encoding) << 24 \| (bits_offset) << 16 \| (nr_bits))
	17	#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
	18	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
	19	BTF_INT_ENC(encoding, bits_offset, bits)
	20	#define BTF_MEMBER_ENC(name, type, bits_offset) (name), (type), (bits_offset)
	21	#define BTF_PARAM_ENC(name, type) (name), (type)
	22	#define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size)
	23
d72386fe AN	24	extern void libbpf_print(enum libbpf_print_level level,
	25	const char *format, ...)
	26	__attribute__((format(printf, 2, 3)));
	27
	28	#define __pr(level, fmt, ...) \
	29	do { \
	30	libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
	31	} while (0)
	32
	33	#define pr_warning(fmt, ...) __pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
	34	#define pr_info(fmt, ...) __pr(LIBBPF_INFO, fmt, ##__VA_ARGS__)
	35	#define pr_debug(fmt, ...) __pr(LIBBPF_DEBUG, fmt, ##__VA_ARGS__)
	36
cfd49210 MR	37	int libbpf__load_raw_btf(const char *raw_types, size_t types_len,
cfd49210 MR	38	const char *str_sec, size_t str_len);
d7c4b398 AN	39
d7c4b398 AN	40	#endif /* __LIBBPF_LIBBPF_INTERNAL_H */