| 1 | /* Implementation header. |
| 2 | Copyright (C) 2019 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of libctf. |
| 5 | |
| 6 | libctf is free software; you can redistribute it and/or modify it under |
| 7 | the terms of the GNU General Public License as published by the Free |
| 8 | Software Foundation; either version 3, or (at your option) any later |
| 9 | version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 14 | See the GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; see the file COPYING. If not see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef _CTF_IMPL_H |
| 21 | #define _CTF_IMPL_H |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include <errno.h> |
| 25 | #include "ctf-decls.h" |
| 26 | #include <ctf-api.h> |
| 27 | #include <sys/types.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <stdarg.h> |
| 30 | #include <stdio.h> |
| 31 | #include <stdint.h> |
| 32 | #include <limits.h> |
| 33 | #include <ctype.h> |
| 34 | #include <elf.h> |
| 35 | #include <bfd.h> |
| 36 | |
| 37 | #ifdef __cplusplus |
| 38 | extern "C" |
| 39 | { |
| 40 | #endif |
| 41 | |
| 42 | /* Compiler attributes. */ |
| 43 | |
| 44 | #if defined (__GNUC__) |
| 45 | |
| 46 | /* GCC. We assume that all compilers claiming to be GCC support sufficiently |
| 47 | many GCC attributes that the code below works. If some non-GCC compilers |
| 48 | masquerading as GCC in fact do not implement these attributes, version checks |
| 49 | may be required. */ |
| 50 | |
| 51 | /* We use the _libctf_*_ pattern to avoid clashes with any future attribute |
| 52 | macros glibc may introduce, which have names of the pattern |
| 53 | __attribute_blah__. */ |
| 54 | |
| 55 | #define _libctf_printflike_(string_index,first_to_check) \ |
| 56 | __attribute__ ((__format__ (__printf__, (string_index), (first_to_check)))) |
| 57 | #define _libctf_unlikely_(x) __builtin_expect ((x), 0) |
| 58 | #define _libctf_unused_ __attribute__ ((__unused__)) |
| 59 | #define _libctf_malloc_ __attribute__((__malloc__)) |
| 60 | |
| 61 | #endif |
| 62 | |
| 63 | /* libctf in-memory state. */ |
| 64 | |
| 65 | typedef struct ctf_fixed_hash ctf_hash_t; /* Private to ctf-hash.c. */ |
| 66 | typedef struct ctf_dynhash ctf_dynhash_t; /* Private to ctf-hash.c. */ |
| 67 | |
| 68 | typedef struct ctf_strs |
| 69 | { |
| 70 | const char *cts_strs; /* Base address of string table. */ |
| 71 | size_t cts_len; /* Size of string table in bytes. */ |
| 72 | } ctf_strs_t; |
| 73 | |
| 74 | typedef struct ctf_strs_writable |
| 75 | { |
| 76 | char *cts_strs; /* Base address of string table. */ |
| 77 | size_t cts_len; /* Size of string table in bytes. */ |
| 78 | } ctf_strs_writable_t; |
| 79 | |
| 80 | typedef struct ctf_dmodel |
| 81 | { |
| 82 | const char *ctd_name; /* Data model name. */ |
| 83 | int ctd_code; /* Data model code. */ |
| 84 | size_t ctd_pointer; /* Size of void * in bytes. */ |
| 85 | size_t ctd_char; /* Size of char in bytes. */ |
| 86 | size_t ctd_short; /* Size of short in bytes. */ |
| 87 | size_t ctd_int; /* Size of int in bytes. */ |
| 88 | size_t ctd_long; /* Size of long in bytes. */ |
| 89 | } ctf_dmodel_t; |
| 90 | |
| 91 | typedef struct ctf_lookup |
| 92 | { |
| 93 | const char *ctl_prefix; /* String prefix for this lookup. */ |
| 94 | size_t ctl_len; /* Length of prefix string in bytes. */ |
| 95 | ctf_hash_t *ctl_hash; /* Pointer to hash table for lookup. */ |
| 96 | } ctf_lookup_t; |
| 97 | |
| 98 | typedef struct ctf_fileops |
| 99 | { |
| 100 | uint32_t (*ctfo_get_kind) (uint32_t); |
| 101 | uint32_t (*ctfo_get_root) (uint32_t); |
| 102 | uint32_t (*ctfo_get_vlen) (uint32_t); |
| 103 | ssize_t (*ctfo_get_ctt_size) (const ctf_file_t *, const ctf_type_t *, |
| 104 | ssize_t *, ssize_t *); |
| 105 | ssize_t (*ctfo_get_vbytes) (unsigned short, ssize_t, size_t); |
| 106 | } ctf_fileops_t; |
| 107 | |
| 108 | typedef struct ctf_list |
| 109 | { |
| 110 | struct ctf_list *l_prev; /* Previous pointer or tail pointer. */ |
| 111 | struct ctf_list *l_next; /* Next pointer or head pointer. */ |
| 112 | } ctf_list_t; |
| 113 | |
| 114 | typedef enum |
| 115 | { |
| 116 | CTF_PREC_BASE, |
| 117 | CTF_PREC_POINTER, |
| 118 | CTF_PREC_ARRAY, |
| 119 | CTF_PREC_FUNCTION, |
| 120 | CTF_PREC_MAX |
| 121 | } ctf_decl_prec_t; |
| 122 | |
| 123 | typedef struct ctf_decl_node |
| 124 | { |
| 125 | ctf_list_t cd_list; /* Linked list pointers. */ |
| 126 | ctf_id_t cd_type; /* Type identifier. */ |
| 127 | uint32_t cd_kind; /* Type kind. */ |
| 128 | uint32_t cd_n; /* Type dimension if array. */ |
| 129 | } ctf_decl_node_t; |
| 130 | |
| 131 | typedef struct ctf_decl |
| 132 | { |
| 133 | ctf_list_t cd_nodes[CTF_PREC_MAX]; /* Declaration node stacks. */ |
| 134 | int cd_order[CTF_PREC_MAX]; /* Storage order of decls. */ |
| 135 | ctf_decl_prec_t cd_qualp; /* Qualifier precision. */ |
| 136 | ctf_decl_prec_t cd_ordp; /* Ordered precision. */ |
| 137 | char *cd_buf; /* Buffer for output. */ |
| 138 | int cd_err; /* Saved error value. */ |
| 139 | int cd_enomem; /* Nonzero if OOM during printing. */ |
| 140 | } ctf_decl_t; |
| 141 | |
| 142 | typedef struct ctf_dmdef |
| 143 | { |
| 144 | ctf_list_t dmd_list; /* List forward/back pointers. */ |
| 145 | char *dmd_name; /* Name of this member. */ |
| 146 | ctf_id_t dmd_type; /* Type of this member (for sou). */ |
| 147 | unsigned long dmd_offset; /* Offset of this member in bits (for sou). */ |
| 148 | int dmd_value; /* Value of this member (for enum). */ |
| 149 | } ctf_dmdef_t; |
| 150 | |
| 151 | typedef struct ctf_dtdef |
| 152 | { |
| 153 | ctf_list_t dtd_list; /* List forward/back pointers. */ |
| 154 | char *dtd_name; /* Name associated with definition (if any). */ |
| 155 | ctf_id_t dtd_type; /* Type identifier for this definition. */ |
| 156 | ctf_type_t dtd_data; /* Type node: name left unpopulated. */ |
| 157 | union |
| 158 | { |
| 159 | ctf_list_t dtu_members; /* struct, union, or enum */ |
| 160 | ctf_arinfo_t dtu_arr; /* array */ |
| 161 | ctf_encoding_t dtu_enc; /* integer or float */ |
| 162 | ctf_id_t *dtu_argv; /* function */ |
| 163 | ctf_slice_t dtu_slice; /* slice */ |
| 164 | } dtd_u; |
| 165 | } ctf_dtdef_t; |
| 166 | |
| 167 | typedef struct ctf_dvdef |
| 168 | { |
| 169 | ctf_list_t dvd_list; /* List forward/back pointers. */ |
| 170 | char *dvd_name; /* Name associated with variable. */ |
| 171 | ctf_id_t dvd_type; /* Type of variable. */ |
| 172 | unsigned long dvd_snapshots; /* Snapshot count when inserted. */ |
| 173 | } ctf_dvdef_t; |
| 174 | |
| 175 | typedef struct ctf_bundle |
| 176 | { |
| 177 | ctf_file_t *ctb_file; /* CTF container handle. */ |
| 178 | ctf_id_t ctb_type; /* CTF type identifier. */ |
| 179 | ctf_dtdef_t *ctb_dtd; /* CTF dynamic type definition (if any). */ |
| 180 | } ctf_bundle_t; |
| 181 | |
| 182 | /* Atoms associate strings with a list of the CTF items that reference that |
| 183 | string, so that ctf_update() can instantiate all the strings using the |
| 184 | ctf_str_atoms and then reassociate them with the real string later. |
| 185 | |
| 186 | Strings can be interned into ctf_str_atom without having refs associated |
| 187 | with them, for values that are returned to callers, etc. Items are only |
| 188 | removed from this table on ctf_close(), but on every ctf_update(), all the |
| 189 | csa_refs in all entries are purged. */ |
| 190 | |
| 191 | typedef struct ctf_str_atom |
| 192 | { |
| 193 | const char *csa_str; /* Backpointer to string (hash key). */ |
| 194 | ctf_list_t csa_refs; /* This string's refs. */ |
| 195 | unsigned long csa_snapshot_id; /* Snapshot ID at time of creation. */ |
| 196 | } ctf_str_atom_t; |
| 197 | |
| 198 | /* The refs of a single string in the atoms table. */ |
| 199 | |
| 200 | typedef struct ctf_str_atom_ref |
| 201 | { |
| 202 | ctf_list_t caf_list; /* List forward/back pointers. */ |
| 203 | uint32_t *caf_ref; /* A single ref to this string. */ |
| 204 | } ctf_str_atom_ref_t; |
| 205 | |
| 206 | /* The ctf_file is the structure used to represent a CTF container to library |
| 207 | clients, who see it only as an opaque pointer. Modifications can therefore |
| 208 | be made freely to this structure without regard to client versioning. The |
| 209 | ctf_file_t typedef appears in <ctf-api.h> and declares a forward tag. |
| 210 | |
| 211 | NOTE: ctf_update() requires that everything inside of ctf_file either be an |
| 212 | immediate value, a pointer to dynamically allocated data *outside* of the |
| 213 | ctf_file itself, or a pointer to statically allocated data. If you add a |
| 214 | pointer to ctf_file that points to something within the ctf_file itself, |
| 215 | you must make corresponding changes to ctf_update(). */ |
| 216 | |
| 217 | struct ctf_file |
| 218 | { |
| 219 | const ctf_fileops_t *ctf_fileops; /* Version-specific file operations. */ |
| 220 | ctf_sect_t ctf_data; /* CTF data from object file. */ |
| 221 | ctf_sect_t ctf_symtab; /* Symbol table from object file. */ |
| 222 | ctf_sect_t ctf_strtab; /* String table from object file. */ |
| 223 | void *ctf_data_mmapped; /* CTF data we mmapped, to free later. */ |
| 224 | size_t ctf_data_mmapped_len; /* Length of CTF data we mmapped. */ |
| 225 | ctf_hash_t *ctf_structs; /* Hash table of struct types. */ |
| 226 | ctf_hash_t *ctf_unions; /* Hash table of union types. */ |
| 227 | ctf_hash_t *ctf_enums; /* Hash table of enum types. */ |
| 228 | ctf_hash_t *ctf_names; /* Hash table of remaining type names. */ |
| 229 | ctf_lookup_t ctf_lookups[5]; /* Pointers to hashes for name lookup. */ |
| 230 | ctf_strs_t ctf_str[2]; /* Array of string table base and bounds. */ |
| 231 | ctf_dynhash_t *ctf_str_atoms; /* Hash table of ctf_str_atoms_t. */ |
| 232 | uint64_t ctf_str_num_refs; /* Number of refs to cts_str_atoms. */ |
| 233 | const unsigned char *ctf_base; /* Base of CTF header + uncompressed buffer. */ |
| 234 | const unsigned char *ctf_buf; /* Uncompressed CTF data buffer. */ |
| 235 | size_t ctf_size; /* Size of CTF header + uncompressed data. */ |
| 236 | uint32_t *ctf_sxlate; /* Translation table for symtab entries. */ |
| 237 | unsigned long ctf_nsyms; /* Number of entries in symtab xlate table. */ |
| 238 | uint32_t *ctf_txlate; /* Translation table for type IDs. */ |
| 239 | uint32_t *ctf_ptrtab; /* Translation table for pointer-to lookups. */ |
| 240 | struct ctf_varent *ctf_vars; /* Sorted variable->type mapping. */ |
| 241 | unsigned long ctf_nvars; /* Number of variables in ctf_vars. */ |
| 242 | unsigned long ctf_typemax; /* Maximum valid type ID number. */ |
| 243 | const ctf_dmodel_t *ctf_dmodel; /* Data model pointer (see above). */ |
| 244 | struct ctf_file *ctf_parent; /* Parent CTF container (if any). */ |
| 245 | const char *ctf_parlabel; /* Label in parent container (if any). */ |
| 246 | const char *ctf_parname; /* Basename of parent (if any). */ |
| 247 | char *ctf_dynparname; /* Dynamically allocated name of parent. */ |
| 248 | uint32_t ctf_parmax; /* Highest type ID of a parent type. */ |
| 249 | uint32_t ctf_refcnt; /* Reference count (for parent links). */ |
| 250 | uint32_t ctf_flags; /* Libctf flags (see below). */ |
| 251 | int ctf_errno; /* Error code for most recent error. */ |
| 252 | int ctf_version; /* CTF data version. */ |
| 253 | ctf_dynhash_t *ctf_dthash; /* Hash of dynamic type definitions. */ |
| 254 | ctf_dynhash_t *ctf_dtbyname; /* DTDs, indexed by name. */ |
| 255 | ctf_list_t ctf_dtdefs; /* List of dynamic type definitions. */ |
| 256 | ctf_dynhash_t *ctf_dvhash; /* Hash of dynamic variable mappings. */ |
| 257 | ctf_list_t ctf_dvdefs; /* List of dynamic variable definitions. */ |
| 258 | unsigned long ctf_dtnextid; /* Next dynamic type id to assign. */ |
| 259 | unsigned long ctf_dtoldid; /* Oldest id that has been committed. */ |
| 260 | unsigned long ctf_snapshots; /* ctf_snapshot() plus ctf_update() count. */ |
| 261 | unsigned long ctf_snapshot_lu; /* ctf_snapshot() call count at last update. */ |
| 262 | ctf_archive_t *ctf_archive; /* Archive this ctf_file_t came from. */ |
| 263 | char *ctf_tmp_typeslice; /* Storage for slicing up type names. */ |
| 264 | size_t ctf_tmp_typeslicelen; /* Size of the typeslice. */ |
| 265 | void *ctf_specific; /* Data for ctf_get/setspecific(). */ |
| 266 | }; |
| 267 | |
| 268 | /* An abstraction over both a ctf_file_t and a ctf_archive_t. */ |
| 269 | |
| 270 | struct ctf_archive_internal |
| 271 | { |
| 272 | int ctfi_is_archive; |
| 273 | ctf_file_t *ctfi_file; |
| 274 | struct ctf_archive *ctfi_archive; |
| 275 | ctf_sect_t ctfi_symsect; |
| 276 | ctf_sect_t ctfi_strsect; |
| 277 | void *ctfi_data; |
| 278 | bfd *ctfi_abfd; /* Optional source of section data. */ |
| 279 | void (*ctfi_bfd_close) (struct ctf_archive_internal *); |
| 280 | }; |
| 281 | |
| 282 | /* Return x rounded up to an alignment boundary. |
| 283 | eg, P2ROUNDUP(0x1234, 0x100) == 0x1300 (0x13*align) |
| 284 | eg, P2ROUNDUP(0x5600, 0x100) == 0x5600 (0x56*align) */ |
| 285 | #define P2ROUNDUP(x, align) (-(-(x) & -(align))) |
| 286 | |
| 287 | /* * If an offs is not aligned already then round it up and align it. */ |
| 288 | #define LCTF_ALIGN_OFFS(offs, align) ((offs + (align - 1)) & ~(align - 1)) |
| 289 | |
| 290 | #define LCTF_TYPE_ISPARENT(fp, id) ((id) <= fp->ctf_parmax) |
| 291 | #define LCTF_TYPE_ISCHILD(fp, id) ((id) > fp->ctf_parmax) |
| 292 | #define LCTF_TYPE_TO_INDEX(fp, id) ((id) & (fp->ctf_parmax)) |
| 293 | #define LCTF_INDEX_TO_TYPE(fp, id, child) (child ? ((id) | (fp->ctf_parmax+1)) : \ |
| 294 | (id)) |
| 295 | |
| 296 | #define LCTF_INDEX_TO_TYPEPTR(fp, i) \ |
| 297 | ((ctf_type_t *)((uintptr_t)(fp)->ctf_buf + (fp)->ctf_txlate[(i)])) |
| 298 | |
| 299 | #define LCTF_INFO_KIND(fp, info) ((fp)->ctf_fileops->ctfo_get_kind(info)) |
| 300 | #define LCTF_INFO_ISROOT(fp, info) ((fp)->ctf_fileops->ctfo_get_root(info)) |
| 301 | #define LCTF_INFO_VLEN(fp, info) ((fp)->ctf_fileops->ctfo_get_vlen(info)) |
| 302 | #define LCTF_VBYTES(fp, kind, size, vlen) \ |
| 303 | ((fp)->ctf_fileops->ctfo_get_vbytes(kind, size, vlen)) |
| 304 | |
| 305 | static inline ssize_t ctf_get_ctt_size (const ctf_file_t *fp, |
| 306 | const ctf_type_t *tp, |
| 307 | ssize_t *sizep, |
| 308 | ssize_t *incrementp) |
| 309 | { |
| 310 | return (fp->ctf_fileops->ctfo_get_ctt_size (fp, tp, sizep, incrementp)); |
| 311 | } |
| 312 | |
| 313 | #define LCTF_CHILD 0x0001 /* CTF container is a child */ |
| 314 | #define LCTF_RDWR 0x0002 /* CTF container is writable */ |
| 315 | #define LCTF_DIRTY 0x0004 /* CTF container has been modified */ |
| 316 | |
| 317 | extern const ctf_type_t *ctf_lookup_by_id (ctf_file_t **, ctf_id_t); |
| 318 | |
| 319 | typedef unsigned int (*ctf_hash_fun) (const void *ptr); |
| 320 | extern unsigned int ctf_hash_integer (const void *ptr); |
| 321 | extern unsigned int ctf_hash_string (const void *ptr); |
| 322 | |
| 323 | typedef int (*ctf_hash_eq_fun) (const void *, const void *); |
| 324 | extern int ctf_hash_eq_integer (const void *, const void *); |
| 325 | extern int ctf_hash_eq_string (const void *, const void *); |
| 326 | |
| 327 | typedef void (*ctf_hash_free_fun) (void *); |
| 328 | |
| 329 | typedef void (*ctf_hash_iter_f) (void *key, void *value, void *arg); |
| 330 | typedef int (*ctf_hash_iter_remove_f) (void *key, void *value, void *arg); |
| 331 | |
| 332 | extern ctf_hash_t *ctf_hash_create (unsigned long, ctf_hash_fun, ctf_hash_eq_fun); |
| 333 | extern int ctf_hash_insert_type (ctf_hash_t *, ctf_file_t *, uint32_t, uint32_t); |
| 334 | extern int ctf_hash_define_type (ctf_hash_t *, ctf_file_t *, uint32_t, uint32_t); |
| 335 | extern ctf_id_t ctf_hash_lookup_type (ctf_hash_t *, ctf_file_t *, const char *); |
| 336 | extern uint32_t ctf_hash_size (const ctf_hash_t *); |
| 337 | extern void ctf_hash_destroy (ctf_hash_t *); |
| 338 | |
| 339 | extern ctf_dynhash_t *ctf_dynhash_create (ctf_hash_fun, ctf_hash_eq_fun, |
| 340 | ctf_hash_free_fun, ctf_hash_free_fun); |
| 341 | extern int ctf_dynhash_insert (ctf_dynhash_t *, void *, void *); |
| 342 | extern void ctf_dynhash_remove (ctf_dynhash_t *, const void *); |
| 343 | extern void *ctf_dynhash_lookup (ctf_dynhash_t *, const void *); |
| 344 | extern void ctf_dynhash_destroy (ctf_dynhash_t *); |
| 345 | extern void ctf_dynhash_iter (ctf_dynhash_t *, ctf_hash_iter_f, void *); |
| 346 | extern void ctf_dynhash_iter_remove (ctf_dynhash_t *, ctf_hash_iter_remove_f, |
| 347 | void *); |
| 348 | |
| 349 | #define ctf_list_prev(elem) ((void *)(((ctf_list_t *)(elem))->l_prev)) |
| 350 | #define ctf_list_next(elem) ((void *)(((ctf_list_t *)(elem))->l_next)) |
| 351 | |
| 352 | extern void ctf_list_append (ctf_list_t *, void *); |
| 353 | extern void ctf_list_prepend (ctf_list_t *, void *); |
| 354 | extern void ctf_list_delete (ctf_list_t *, void *); |
| 355 | |
| 356 | extern int ctf_dtd_insert (ctf_file_t *, ctf_dtdef_t *); |
| 357 | extern void ctf_dtd_delete (ctf_file_t *, ctf_dtdef_t *); |
| 358 | extern ctf_dtdef_t *ctf_dtd_lookup (const ctf_file_t *, ctf_id_t); |
| 359 | extern ctf_dtdef_t *ctf_dynamic_type (const ctf_file_t *, ctf_id_t); |
| 360 | |
| 361 | extern int ctf_dvd_insert (ctf_file_t *, ctf_dvdef_t *); |
| 362 | extern void ctf_dvd_delete (ctf_file_t *, ctf_dvdef_t *); |
| 363 | extern ctf_dvdef_t *ctf_dvd_lookup (const ctf_file_t *, const char *); |
| 364 | |
| 365 | extern void ctf_decl_init (ctf_decl_t *); |
| 366 | extern void ctf_decl_fini (ctf_decl_t *); |
| 367 | extern void ctf_decl_push (ctf_decl_t *, ctf_file_t *, ctf_id_t); |
| 368 | |
| 369 | _libctf_printflike_ (2, 3) |
| 370 | extern void ctf_decl_sprintf (ctf_decl_t *, const char *, ...); |
| 371 | extern char *ctf_decl_buf (ctf_decl_t *cd); |
| 372 | |
| 373 | extern const char *ctf_strraw (ctf_file_t *, uint32_t); |
| 374 | extern const char *ctf_strptr (ctf_file_t *, uint32_t); |
| 375 | extern int ctf_str_create_atoms (ctf_file_t *); |
| 376 | extern void ctf_str_free_atoms (ctf_file_t *); |
| 377 | extern const char *ctf_str_add (ctf_file_t *, const char *); |
| 378 | extern const char *ctf_str_add_ref (ctf_file_t *, const char *, uint32_t *); |
| 379 | extern void ctf_str_rollback (ctf_file_t *, ctf_snapshot_id_t); |
| 380 | extern void ctf_str_purge_refs (ctf_file_t *); |
| 381 | extern ctf_strs_writable_t ctf_str_write_strtab (ctf_file_t *); |
| 382 | |
| 383 | extern struct ctf_archive *ctf_arc_open_internal (const char *, int *); |
| 384 | extern struct ctf_archive *ctf_arc_bufopen (const void *, size_t, int *); |
| 385 | extern void ctf_arc_close_internal (struct ctf_archive *); |
| 386 | extern void *ctf_set_open_errno (int *, int); |
| 387 | extern unsigned long ctf_set_errno (ctf_file_t *, int); |
| 388 | |
| 389 | _libctf_malloc_ |
| 390 | extern void *ctf_mmap (size_t length, size_t offset, int fd); |
| 391 | extern void ctf_munmap (void *, size_t); |
| 392 | extern ssize_t ctf_pread (int fd, void *buf, ssize_t count, off_t offset); |
| 393 | |
| 394 | _libctf_malloc_ |
| 395 | extern void *ctf_alloc (size_t); |
| 396 | extern void ctf_free (void *); |
| 397 | extern void *ctf_realloc (ctf_file_t *, void *, size_t); |
| 398 | |
| 399 | _libctf_malloc_ |
| 400 | extern char *ctf_strdup (const char *); |
| 401 | extern char *ctf_str_append (char *, const char *); |
| 402 | extern const char *ctf_strerror (int); |
| 403 | |
| 404 | extern ctf_id_t ctf_type_resolve_unsliced (ctf_file_t *, ctf_id_t); |
| 405 | extern int ctf_type_kind_unsliced (ctf_file_t *, ctf_id_t); |
| 406 | |
| 407 | _libctf_printflike_ (1, 2) |
| 408 | extern void ctf_dprintf (const char *, ...); |
| 409 | extern void libctf_init_debug (void); |
| 410 | |
| 411 | extern Elf64_Sym *ctf_sym_to_elf64 (const Elf32_Sym *src, Elf64_Sym *dst); |
| 412 | extern const char *ctf_lookup_symbol_name (ctf_file_t *fp, unsigned long symidx); |
| 413 | |
| 414 | /* Variables, all underscore-prepended. */ |
| 415 | |
| 416 | extern const char _CTF_SECTION[]; /* name of CTF ELF section */ |
| 417 | extern const char _CTF_NULLSTR[]; /* empty string */ |
| 418 | |
| 419 | extern int _libctf_version; /* library client version */ |
| 420 | extern int _libctf_debug; /* debugging messages enabled */ |
| 421 | |
| 422 | #ifdef __cplusplus |
| 423 | } |
| 424 | #endif |
| 425 | |
| 426 | #endif /* _CTF_IMPL_H */ |