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115 lines (95 loc) · 3.63 KB
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/*
SPDX-License-Identifier: GPL-2.0-only
Copyright (C) 2019 Arnaldo Carvalho de Melo <acme@redhat.com>
*/
#ifndef _LIBCTF_H
#define _LIBCTF_H
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <elf.h>
#include "gobuffer.h"
#include "elf_symtab.h"
struct ctf {
void *buf;
void *priv;
Elf *elf;
struct elf_symtab *symtab;
GElf_Ehdr ehdr;
struct gobuffer objects; /* data/variables */
struct gobuffer types;
struct gobuffer funcs;
struct strings *strings;
char *filename;
size_t size;
int swapped;
int in_fd;
uint8_t wordsize;
uint32_t type_index;
};
struct ctf *ctf__new(const char *filename, Elf *elf);
void ctf__delete(struct ctf *ctf);
bool ctf__ignore_symtab_function(const GElf_Sym *sym, const char *sym_name);
bool ctf__ignore_symtab_object(const GElf_Sym *sym, const char *sym_name);
int ctf__load(struct ctf *ctf);
uint16_t ctf__get16(struct ctf *ctf, uint16_t *p);
uint32_t ctf__get32(struct ctf *ctf, uint32_t *p);
void ctf__put16(struct ctf *ctf, uint16_t *p, uint16_t val);
void ctf__put32(struct ctf *ctf, uint32_t *p, uint32_t val);
void *ctf__get_buffer(struct ctf *ctf);
size_t ctf__get_size(struct ctf *ctf);
int ctf__load_symtab(struct ctf *ctf);
uint32_t ctf__add_base_type(struct ctf *ctf, uint32_t name, uint16_t size);
uint32_t ctf__add_fwd_decl(struct ctf *ctf, uint32_t name);
uint32_t ctf__add_short_type(struct ctf *ctf, uint16_t kind, uint16_t type, uint32_t name);
void ctf__add_short_member(struct ctf *ctf, uint32_t name, uint16_t type,
uint16_t offset, int64_t *position);
void ctf__add_full_member(struct ctf *ctf, uint32_t name, uint16_t type,
uint64_t offset, int64_t *position);
uint32_t ctf__add_struct(struct ctf *ctf, uint16_t kind, uint32_t name,
uint64_t size, uint16_t nr_members, int64_t *position);
uint32_t ctf__add_array(struct ctf *ctf, uint16_t type, uint16_t index_type, uint32_t nelems);
void ctf__add_parameter(struct ctf *ctf, uint16_t type, int64_t *position);
uint32_t ctf__add_function_type(struct ctf *ctf, uint16_t type,
uint16_t nr_parms, bool varargs, int64_t *position);
uint32_t ctf__add_enumeration_type(struct ctf *ctf, uint32_t name, uint16_t size,
uint16_t nr_entries, int64_t *position);
void ctf__add_enumerator(struct ctf *ctf, uint32_t name, uint32_t value,
int64_t *position);
void ctf__add_function_parameter(struct ctf *ctf, uint16_t type,
int64_t *position);
int ctf__add_function(struct ctf *ctf, uint16_t type, uint16_t nr_parms,
bool varargs, int64_t *position);
int ctf__add_object(struct ctf *ctf, uint16_t type);
void ctf__set_strings(struct ctf *ctf, struct strings *strings);
int ctf__encode(struct ctf *ctf, uint8_t flags);
char *ctf__string(struct ctf *ctf, uint32_t ref);
/**
* ctf__for_each_symtab_function - iterate thru all the symtab functions
*
* @ctf: struct ctf instance to iterate
* @index: uint32_t index
* @sym: GElf_Sym iterator
*/
#define ctf__for_each_symtab_function(ctf, index, sym) \
elf_symtab__for_each_symbol(ctf->symtab, index, sym) \
if (ctf__ignore_symtab_function(&sym, \
elf_sym__name(&sym, \
ctf->symtab))) \
continue; \
else
/**
* ctf__for_each_symtab_object - iterate thru all the symtab objects
*
* @ctf: struct ctf instance to iterate
* @index: uint32_t index
* @sym: GElf_Sym iterator
*/
#define ctf__for_each_symtab_object(ctf, index, sym) \
elf_symtab__for_each_symbol(ctf->symtab, index, sym) \
if (ctf__ignore_symtab_object(&sym, \
elf_sym__name(&sym, \
ctf->symtab))) \
continue; \
else
#endif /* _LIBCTF_H */