70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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SPDX-License-Identifier: GPL-2.0-only
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Copyright (C) 2019 Arnaldo Carvalho de Melo <acme@redhat.com>
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*/
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#ifndef _LIBBTF_H
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#define _LIBBTF_H
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#include "gobuffer.h"
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#include <stdbool.h>
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#include <stdint.h>
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struct btf {
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union {
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struct btf_header *hdr;
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void *data;
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};
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void *priv;
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Elf *elf;
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GElf_Ehdr ehdr;
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struct gobuffer types;
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struct gobuffer *strings;
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char *filename;
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size_t size;
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int swapped;
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int in_fd;
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uint8_t wordsize;
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bool is_big_endian;
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uint32_t type_index;
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};
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extern uint8_t btf_verbose;
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#define btf_verbose_log(fmt, ...) { if (btf_verbose) printf(fmt, __VA_ARGS__); }
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struct base_type;
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struct ftype;
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struct btf *btf__new(const char *filename, Elf *elf);
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void btf__free(struct btf *btf);
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int32_t btf__add_base_type(struct btf *btf, const struct base_type *bt);
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int32_t btf__add_ref_type(struct btf *btf, uint16_t kind, uint32_t type,
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uint32_t name, bool kind_flag);
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int btf__add_member(struct btf *btf, uint32_t name, uint32_t type, bool kind_flag,
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uint32_t bitfield_size, uint32_t bit_offset);
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int32_t btf__add_struct(struct btf *btf, uint8_t kind, uint32_t name,
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bool kind_flag, uint32_t size, uint16_t nr_members);
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int32_t btf__add_array(struct btf *btf, uint32_t type, uint32_t index_type,
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uint32_t nelems);
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int32_t btf__add_enum(struct btf *btf, uint32_t name, uint32_t size,
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uint16_t nr_entries);
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int btf__add_enum_val(struct btf *btf, uint32_t name, int32_t value);
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int32_t btf__add_func_proto(struct btf *btf, struct ftype *ftype,
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uint32_t type_id_off);
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void btf__set_strings(struct btf *btf, struct gobuffer *strings);
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int btf__encode(struct btf *btf, uint8_t flags);
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char *btf__string(struct btf *btf, uint32_t ref);
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int btf__load(struct btf *btf);
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uint32_t btf__get32(struct btf *btf, uint32_t *p);
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void *btf__get_buffer(struct btf *btf);
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size_t btf__get_size(struct btf *btf);
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#endif /* _LIBBTF_H */
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