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Commit | Line | Data |
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a30b3e18 | 1 | /* Textual dumping of CTF data. |
250d07de | 2 | Copyright (C) 2019-2021 Free Software Foundation, Inc. |
a30b3e18 NA |
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 | #include <ctf-impl.h> | |
21 | #include <string.h> | |
22 | ||
9323dd86 NA |
23 | #define str_append(s, a) ctf_str_append_noerr (s, a) |
24 | ||
a30b3e18 NA |
25 | /* One item to be dumped, in string form. */ |
26 | ||
27 | typedef struct ctf_dump_item | |
28 | { | |
29 | ctf_list_t cdi_list; | |
30 | char *cdi_item; | |
31 | } ctf_dump_item_t; | |
32 | ||
33 | /* Cross-call state for dumping. Basically just enough to track the section in | |
34 | use and a list of return strings. */ | |
35 | ||
36 | struct ctf_dump_state | |
37 | { | |
38 | ctf_sect_names_t cds_sect; | |
139633c3 | 39 | ctf_dict_t *cds_fp; |
a30b3e18 NA |
40 | ctf_dump_item_t *cds_current; |
41 | ctf_list_t cds_items; | |
42 | }; | |
43 | ||
44 | /* Cross-call state for ctf_dump_member. */ | |
45 | ||
46 | typedef struct ctf_dump_membstate | |
47 | { | |
48 | char **cdm_str; | |
139633c3 | 49 | ctf_dict_t *cdm_fp; |
57f97d0e | 50 | char *cdm_toplevel_indent; |
a30b3e18 NA |
51 | } ctf_dump_membstate_t; |
52 | ||
53 | static int | |
54 | ctf_dump_append (ctf_dump_state_t *state, char *str) | |
55 | { | |
56 | ctf_dump_item_t *cdi; | |
57 | ||
de07e349 | 58 | if ((cdi = malloc (sizeof (struct ctf_dump_item))) == NULL) |
a30b3e18 NA |
59 | return (ctf_set_errno (state->cds_fp, ENOMEM)); |
60 | ||
61 | cdi->cdi_item = str; | |
62 | ctf_list_append (&state->cds_items, cdi); | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static void | |
67 | ctf_dump_free (ctf_dump_state_t *state) | |
68 | { | |
69 | ctf_dump_item_t *cdi, *next_cdi; | |
70 | ||
71 | if (state == NULL) | |
72 | return; | |
73 | ||
74 | for (cdi = ctf_list_next (&state->cds_items); cdi != NULL; | |
75 | cdi = next_cdi) | |
76 | { | |
77 | free (cdi->cdi_item); | |
78 | next_cdi = ctf_list_next (cdi); | |
de07e349 | 79 | free (cdi); |
a30b3e18 NA |
80 | } |
81 | } | |
82 | ||
a30b3e18 NA |
83 | /* Return a dump for a single type, without member info: but do show the |
84 | type's references. */ | |
85 | ||
86 | static char * | |
139633c3 | 87 | ctf_dump_format_type (ctf_dict_t *fp, ctf_id_t id, int flag) |
a30b3e18 NA |
88 | { |
89 | ctf_id_t new_id; | |
90 | char *str = NULL, *bit = NULL, *buf = NULL; | |
91 | ||
92 | new_id = id; | |
93 | do | |
94 | { | |
95 | ctf_encoding_t enc; | |
b4f0e09c NA |
96 | const char *nonroot_leader = ""; |
97 | const char *nonroot_trailer = ""; | |
a30b3e18 NA |
98 | |
99 | id = new_id; | |
b4f0e09c NA |
100 | if (flag == CTF_ADD_NONROOT) |
101 | { | |
102 | nonroot_leader = "{"; | |
103 | nonroot_trailer = "}"; | |
104 | } | |
105 | ||
a30b3e18 NA |
106 | buf = ctf_type_aname (fp, id); |
107 | if (!buf) | |
791915db NA |
108 | { |
109 | if (id == 0 || ctf_errno (fp) == ECTF_NONREPRESENTABLE) | |
110 | { | |
9323dd86 | 111 | str = str_append (str, " (type not represented in CTF)"); |
791915db NA |
112 | ctf_set_errno (fp, ECTF_NOTREF); |
113 | break; | |
114 | } | |
115 | ||
116 | goto err; | |
117 | } | |
a30b3e18 | 118 | |
57f97d0e | 119 | if (asprintf (&bit, " %s0x%lx: ", nonroot_leader, id) < 0) |
70447401 NA |
120 | goto oom; |
121 | str = str_append (str, bit); | |
122 | free (bit); | |
123 | bit = NULL; | |
a30b3e18 | 124 | |
70447401 NA |
125 | if (buf[0] != '\0') |
126 | { | |
127 | str = str_append (str, buf); | |
128 | str = str_append (str, " "); | |
129 | } | |
130 | ||
131 | free (buf); | |
132 | buf = NULL; | |
133 | ||
134 | /* Slices get a different print representation. */ | |
135 | if (ctf_type_kind_unsliced (fp, id) == CTF_K_SLICE) | |
a30b3e18 NA |
136 | { |
137 | ctf_type_encoding (fp, id, &enc); | |
70447401 NA |
138 | if (asprintf (&bit, "[slice 0x%x:0x%x] ", |
139 | enc.cte_offset, enc.cte_bits) < 0) | |
a30b3e18 NA |
140 | goto oom; |
141 | } | |
70447401 | 142 | else if (ctf_type_kind (fp, id) == CTF_K_INTEGER) |
a30b3e18 | 143 | { |
70447401 NA |
144 | ctf_type_encoding (fp, id, &enc); |
145 | if (asprintf (&bit, "[0x%x:0x%x] ", | |
146 | enc.cte_offset, enc.cte_bits) < 0) | |
a30b3e18 NA |
147 | goto oom; |
148 | } | |
70447401 NA |
149 | str = str_append (str, bit); |
150 | free (bit); | |
151 | bit = NULL; | |
152 | ||
153 | if (asprintf (&bit, "(size 0x%lx)%s", | |
154 | (unsigned long) ctf_type_size (fp, id), | |
155 | nonroot_trailer) < 0) | |
156 | goto oom; | |
157 | ||
9323dd86 | 158 | str = str_append (str, bit); |
a30b3e18 NA |
159 | free (bit); |
160 | bit = NULL; | |
161 | ||
162 | new_id = ctf_type_reference (fp, id); | |
163 | if (new_id != CTF_ERR) | |
9323dd86 | 164 | str = str_append (str, " ->"); |
a30b3e18 NA |
165 | } while (new_id != CTF_ERR); |
166 | ||
167 | if (ctf_errno (fp) != ECTF_NOTREF) | |
168 | { | |
169 | free (str); | |
170 | return NULL; | |
171 | } | |
172 | ||
173 | return str; | |
174 | ||
175 | oom: | |
791915db NA |
176 | ctf_set_errno (fp, errno); |
177 | err: | |
926c9e76 | 178 | ctf_err_warn (fp, 1, 0, _("cannot format name dumping type 0x%lx"), id); |
a30b3e18 NA |
179 | free (buf); |
180 | free (str); | |
181 | free (bit); | |
a30b3e18 NA |
182 | return NULL; |
183 | } | |
184 | ||
9b32cba4 NA |
185 | /* Dump one string field from the file header into the cds_items. */ |
186 | static int | |
139633c3 | 187 | ctf_dump_header_strfield (ctf_dict_t *fp, ctf_dump_state_t *state, |
9b32cba4 NA |
188 | const char *name, uint32_t value) |
189 | { | |
190 | char *str; | |
191 | if (value) | |
192 | { | |
193 | if (asprintf (&str, "%s: %s\n", name, ctf_strptr (fp, value)) < 0) | |
194 | goto err; | |
195 | ctf_dump_append (state, str); | |
196 | } | |
197 | return 0; | |
198 | ||
199 | err: | |
791915db | 200 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
201 | } |
202 | ||
203 | /* Dump one section-offset field from the file header into the cds_items. */ | |
204 | static int | |
139633c3 | 205 | ctf_dump_header_sectfield (ctf_dict_t *fp, ctf_dump_state_t *state, |
9b32cba4 NA |
206 | const char *sect, uint32_t off, uint32_t nextoff) |
207 | { | |
208 | char *str; | |
209 | if (nextoff - off) | |
210 | { | |
211 | if (asprintf (&str, "%s:\t0x%lx -- 0x%lx (0x%lx bytes)\n", sect, | |
212 | (unsigned long) off, (unsigned long) (nextoff - 1), | |
213 | (unsigned long) (nextoff - off)) < 0) | |
214 | goto err; | |
215 | ctf_dump_append (state, str); | |
216 | } | |
217 | return 0; | |
218 | ||
219 | err: | |
791915db | 220 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
221 | } |
222 | ||
223 | /* Dump the file header into the cds_items. */ | |
224 | static int | |
139633c3 | 225 | ctf_dump_header (ctf_dict_t *fp, ctf_dump_state_t *state) |
9b32cba4 NA |
226 | { |
227 | char *str; | |
4665e895 | 228 | char *flagstr = NULL; |
9b32cba4 NA |
229 | const ctf_header_t *hp = fp->ctf_header; |
230 | const char *vertab[] = | |
231 | { | |
232 | NULL, "CTF_VERSION_1", | |
233 | "CTF_VERSION_1_UPGRADED_3 (latest format, version 1 type " | |
234 | "boundaries)", | |
235 | "CTF_VERSION_2", | |
236 | "CTF_VERSION_3", NULL | |
237 | }; | |
238 | const char *verstr = NULL; | |
239 | ||
57f97d0e | 240 | if (asprintf (&str, "Magic number: 0x%x\n", hp->cth_magic) < 0) |
9b32cba4 NA |
241 | goto err; |
242 | ctf_dump_append (state, str); | |
243 | ||
244 | if (hp->cth_version <= CTF_VERSION) | |
245 | verstr = vertab[hp->cth_version]; | |
246 | ||
247 | if (verstr == NULL) | |
248 | verstr = "(not a valid version)"; | |
249 | ||
250 | if (asprintf (&str, "Version: %i (%s)\n", hp->cth_version, | |
251 | verstr) < 0) | |
252 | goto err; | |
253 | ctf_dump_append (state, str); | |
254 | ||
255 | /* Everything else is only printed if present. */ | |
256 | ||
139633c3 | 257 | /* The flags are unusual in that they represent the ctf_dict_t *in memory*: |
9b32cba4 NA |
258 | flags representing compression, etc, are turned off as the file is |
259 | decompressed. So we store a copy of the flags before they are changed, for | |
260 | the dumper. */ | |
261 | ||
262 | if (fp->ctf_openflags > 0) | |
263 | { | |
4665e895 NA |
264 | if (asprintf (&flagstr, "%s%s%s%s%s%s%s", |
265 | fp->ctf_openflags & CTF_F_COMPRESS | |
266 | ? "CTF_F_COMPRESS": "", | |
267 | (fp->ctf_openflags & CTF_F_COMPRESS) | |
268 | && (fp->ctf_openflags & ~CTF_F_COMPRESS) | |
269 | ? ", " : "", | |
270 | fp->ctf_openflags & CTF_F_NEWFUNCINFO | |
271 | ? "CTF_F_NEWFUNCINFO" : "", | |
272 | (fp->ctf_openflags & (CTF_F_COMPRESS | CTF_F_NEWFUNCINFO)) | |
273 | && (fp->ctf_openflags & ~(CTF_F_COMPRESS | CTF_F_NEWFUNCINFO)) | |
274 | ? ", " : "", | |
275 | fp->ctf_openflags & CTF_F_IDXSORTED | |
276 | ? "CTF_F_IDXSORTED" : "", | |
277 | fp->ctf_openflags & (CTF_F_COMPRESS | CTF_F_NEWFUNCINFO | |
278 | | CTF_F_IDXSORTED) | |
279 | && (fp->ctf_openflags & ~(CTF_F_COMPRESS | CTF_F_NEWFUNCINFO | |
280 | | CTF_F_IDXSORTED)) | |
281 | ? ", " : "", | |
282 | fp->ctf_openflags & CTF_F_DYNSTR | |
283 | ? "CTF_F_DYNSTR" : "") < 0) | |
284 | goto err; | |
285 | ||
286 | if (asprintf (&str, "Flags: 0x%x (%s)", fp->ctf_openflags, flagstr) < 0) | |
9b32cba4 NA |
287 | goto err; |
288 | ctf_dump_append (state, str); | |
289 | } | |
290 | ||
291 | if (ctf_dump_header_strfield (fp, state, "Parent label", | |
292 | hp->cth_parlabel) < 0) | |
293 | goto err; | |
294 | ||
295 | if (ctf_dump_header_strfield (fp, state, "Parent name", hp->cth_parname) < 0) | |
296 | goto err; | |
297 | ||
298 | if (ctf_dump_header_strfield (fp, state, "Compilation unit name", | |
299 | hp->cth_cuname) < 0) | |
300 | goto err; | |
301 | ||
302 | if (ctf_dump_header_sectfield (fp, state, "Label section", hp->cth_lbloff, | |
303 | hp->cth_objtoff) < 0) | |
304 | goto err; | |
305 | ||
306 | if (ctf_dump_header_sectfield (fp, state, "Data object section", | |
307 | hp->cth_objtoff, hp->cth_funcoff) < 0) | |
308 | goto err; | |
309 | ||
310 | if (ctf_dump_header_sectfield (fp, state, "Function info section", | |
4665e895 NA |
311 | hp->cth_funcoff, hp->cth_objtidxoff) < 0) |
312 | goto err; | |
313 | ||
314 | if (ctf_dump_header_sectfield (fp, state, "Object index section", | |
315 | hp->cth_objtidxoff, hp->cth_funcidxoff) < 0) | |
316 | goto err; | |
317 | ||
318 | if (ctf_dump_header_sectfield (fp, state, "Function index section", | |
319 | hp->cth_funcidxoff, hp->cth_varoff) < 0) | |
9b32cba4 NA |
320 | goto err; |
321 | ||
322 | if (ctf_dump_header_sectfield (fp, state, "Variable section", | |
323 | hp->cth_varoff, hp->cth_typeoff) < 0) | |
324 | goto err; | |
325 | ||
326 | if (ctf_dump_header_sectfield (fp, state, "Type section", | |
327 | hp->cth_typeoff, hp->cth_stroff) < 0) | |
328 | goto err; | |
329 | ||
330 | if (ctf_dump_header_sectfield (fp, state, "String section", hp->cth_stroff, | |
331 | hp->cth_stroff + hp->cth_strlen + 1) < 0) | |
332 | goto err; | |
333 | ||
334 | return 0; | |
335 | err: | |
4665e895 | 336 | free (flagstr); |
791915db | 337 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
338 | } |
339 | ||
a30b3e18 NA |
340 | /* Dump a single label into the cds_items. */ |
341 | ||
342 | static int | |
343 | ctf_dump_label (const char *name, const ctf_lblinfo_t *info, | |
344 | void *arg) | |
345 | { | |
346 | char *str; | |
347 | char *typestr; | |
348 | ctf_dump_state_t *state = arg; | |
349 | ||
350 | if (asprintf (&str, "%s -> ", name) < 0) | |
791915db | 351 | return (ctf_set_errno (state->cds_fp, errno)); |
a30b3e18 | 352 | |
b4f0e09c NA |
353 | if ((typestr = ctf_dump_format_type (state->cds_fp, info->ctb_type, |
354 | CTF_ADD_ROOT)) == NULL) | |
a30b3e18 NA |
355 | { |
356 | free (str); | |
8e795b46 | 357 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
358 | } |
359 | ||
9323dd86 | 360 | str = str_append (str, typestr); |
a30b3e18 NA |
361 | free (typestr); |
362 | ||
363 | ctf_dump_append (state, str); | |
364 | return 0; | |
365 | } | |
366 | ||
4665e895 | 367 | /* Dump all the object or function entries into the cds_items. */ |
a30b3e18 NA |
368 | |
369 | static int | |
4665e895 | 370 | ctf_dump_objts (ctf_dict_t *fp, ctf_dump_state_t *state, int functions) |
a30b3e18 | 371 | { |
4665e895 NA |
372 | const char *name; |
373 | ctf_id_t id; | |
374 | ctf_next_t *i = NULL; | |
375 | char *str = NULL; | |
376 | ||
377 | if ((functions && fp->ctf_funcidx_names) | |
378 | || (!functions && fp->ctf_objtidx_names)) | |
379 | str = str_append (str, _("Section is indexed.\n")); | |
380 | else if (fp->ctf_symtab.cts_data == NULL) | |
381 | str = str_append (str, _("No symbol table.\n")); | |
382 | ||
383 | while ((id = ctf_symbol_next (fp, &i, &name, functions)) != CTF_ERR) | |
a30b3e18 | 384 | { |
4665e895 NA |
385 | char *typestr = NULL; |
386 | int err = 0; | |
a30b3e18 | 387 | |
4665e895 NA |
388 | /* Emit the name, if we know it. */ |
389 | if (name) | |
a30b3e18 | 390 | { |
4665e895 NA |
391 | if (asprintf (&str, "%s -> ", name) < 0) |
392 | goto oom; | |
a30b3e18 | 393 | } |
4665e895 NA |
394 | else |
395 | str = xstrdup (""); | |
a30b3e18 | 396 | |
4665e895 | 397 | if ((typestr = ctf_type_aname (fp, id)) == NULL) |
791915db | 398 | { |
4665e895 NA |
399 | if (id == 0 || ctf_errno (fp) == ECTF_NONREPRESENTABLE) |
400 | { | |
401 | if (asprintf (&typestr, " (%s)", _("type not represented in CTF")) < 0) | |
402 | goto oom; | |
a30b3e18 | 403 | |
4665e895 NA |
404 | goto out; |
405 | } | |
c6e9a1e5 | 406 | |
e8cda209 | 407 | if (asprintf (&typestr, _("error: %s"), ctf_errmsg (ctf_errno (fp))) < 0) |
a30b3e18 | 408 | goto oom; |
a30b3e18 | 409 | |
4665e895 NA |
410 | err = -1; |
411 | goto out; | |
a30b3e18 NA |
412 | } |
413 | ||
4665e895 NA |
414 | str = str_append (str, typestr); |
415 | str = str_append (str, "\n"); | |
a30b3e18 NA |
416 | ctf_dump_append (state, str); |
417 | continue; | |
418 | ||
419 | oom: | |
4665e895 NA |
420 | ctf_set_errno (fp, ENOMEM); |
421 | ctf_next_destroy (i); | |
422 | return -1; | |
423 | out: | |
424 | str = str_append (str, typestr); | |
425 | free (typestr); | |
426 | ctf_dump_append (state, str); | |
427 | ctf_next_destroy (i); | |
428 | return err; /* errno is set for us. */ | |
a30b3e18 NA |
429 | } |
430 | return 0; | |
431 | } | |
432 | ||
433 | /* Dump a single variable into the cds_items. */ | |
434 | static int | |
435 | ctf_dump_var (const char *name, ctf_id_t type, void *arg) | |
436 | { | |
437 | char *str; | |
438 | char *typestr; | |
439 | ctf_dump_state_t *state = arg; | |
440 | ||
441 | if (asprintf (&str, "%s -> ", name) < 0) | |
791915db | 442 | return (ctf_set_errno (state->cds_fp, errno)); |
a30b3e18 | 443 | |
b4f0e09c NA |
444 | if ((typestr = ctf_dump_format_type (state->cds_fp, type, |
445 | CTF_ADD_ROOT)) == NULL) | |
a30b3e18 NA |
446 | { |
447 | free (str); | |
8e795b46 | 448 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
449 | } |
450 | ||
9323dd86 | 451 | str = str_append (str, typestr); |
a30b3e18 NA |
452 | free (typestr); |
453 | ||
454 | ctf_dump_append (state, str); | |
455 | return 0; | |
456 | } | |
457 | ||
57f97d0e NA |
458 | /* Report the number of digits in the hexadecimal representation of a type |
459 | ID. */ | |
460 | ||
461 | static int | |
462 | type_hex_digits (ctf_id_t id) | |
463 | { | |
464 | int i = 0; | |
465 | ||
466 | if (id == 0) | |
467 | return 1; | |
468 | ||
469 | for (; id > 0; id >>= 4, i++); | |
470 | return i; | |
471 | } | |
472 | ||
a30b3e18 NA |
473 | /* Dump a single member into the string in the membstate. */ |
474 | static int | |
475 | ctf_dump_member (const char *name, ctf_id_t id, unsigned long offset, | |
57f97d0e | 476 | int depth, void *arg) |
a30b3e18 NA |
477 | { |
478 | ctf_dump_membstate_t *state = arg; | |
479 | char *typestr = NULL; | |
480 | char *bit = NULL; | |
481 | ctf_encoding_t ep; | |
70447401 | 482 | int has_encoding = 0; |
a30b3e18 | 483 | |
57f97d0e NA |
484 | /* Align neatly. */ |
485 | ||
486 | if (depth == 0) | |
487 | { | |
488 | if (asprintf (&state->cdm_toplevel_indent, " %*s", | |
489 | type_hex_digits (id), "") < 0) | |
490 | goto oom; | |
491 | } | |
492 | ||
493 | if (asprintf (&bit, "%s%*s", state->cdm_toplevel_indent, depth * 4, "") < 0) | |
494 | goto oom; | |
495 | *state->cdm_str = str_append (*state->cdm_str, bit); | |
496 | free (bit); | |
a30b3e18 NA |
497 | |
498 | if ((typestr = ctf_type_aname (state->cdm_fp, id)) == NULL) | |
791915db NA |
499 | { |
500 | if (id == 0 || ctf_errno (state->cdm_fp) == ECTF_NONREPRESENTABLE) | |
501 | { | |
57f97d0e | 502 | if (asprintf (&bit, "[0x%lx] (type not represented in CTF)", |
791915db NA |
503 | offset) < 0) |
504 | goto oom; | |
505 | ||
9323dd86 | 506 | *state->cdm_str = str_append (*state->cdm_str, bit); |
791915db NA |
507 | free (typestr); |
508 | free (bit); | |
509 | return 0; | |
510 | } | |
511 | ||
70447401 NA |
512 | return -1; /* errno is set for us. */ |
513 | } | |
514 | ||
515 | if (ctf_type_encoding (state->cdm_fp, id, &ep) == 0) | |
516 | { | |
517 | has_encoding = 1; | |
518 | ctf_type_encoding (state->cdm_fp, id, &ep); | |
519 | ||
57f97d0e | 520 | if (asprintf (&bit, "[0x%lx] (ID 0x%lx) (kind %i) %s%s%s:%i " |
70447401 NA |
521 | "(aligned at 0x%lx", offset, id, |
522 | ctf_type_kind (state->cdm_fp, id), typestr, | |
523 | (name[0] != 0 && typestr[0] != 0) ? " " : "", name, | |
524 | ep.cte_bits, (unsigned long) ctf_type_align (state->cdm_fp, | |
525 | id)) < 0) | |
526 | goto oom; | |
527 | } | |
528 | else | |
529 | { | |
57f97d0e | 530 | if (asprintf (&bit, "[0x%lx] (ID 0x%lx) (kind %i) %s%s%s " |
70447401 NA |
531 | "(aligned at 0x%lx", offset, id, |
532 | ctf_type_kind (state->cdm_fp, id), typestr, | |
533 | (name[0] != 0 && typestr[0] != 0) ? " " : "", name, | |
534 | (unsigned long) ctf_type_align (state->cdm_fp, id)) < 0) | |
535 | goto oom; | |
791915db | 536 | } |
a30b3e18 | 537 | |
9323dd86 | 538 | *state->cdm_str = str_append (*state->cdm_str, bit); |
a30b3e18 NA |
539 | free (typestr); |
540 | free (bit); | |
541 | typestr = NULL; | |
542 | bit = NULL; | |
543 | ||
70447401 | 544 | if (has_encoding) |
a30b3e18 | 545 | { |
a30b3e18 NA |
546 | if (asprintf (&bit, ", format 0x%x, offset:bits 0x%x:0x%x", ep.cte_format, |
547 | ep.cte_offset, ep.cte_bits) < 0) | |
548 | goto oom; | |
9323dd86 | 549 | *state->cdm_str = str_append (*state->cdm_str, bit); |
a30b3e18 NA |
550 | free (bit); |
551 | bit = NULL; | |
552 | } | |
553 | ||
9323dd86 | 554 | *state->cdm_str = str_append (*state->cdm_str, ")\n"); |
a30b3e18 NA |
555 | return 0; |
556 | ||
557 | oom: | |
558 | free (typestr); | |
559 | free (bit); | |
791915db | 560 | return (ctf_set_errno (state->cdm_fp, errno)); |
a30b3e18 NA |
561 | } |
562 | ||
563 | /* Dump a single type into the cds_items. */ | |
a30b3e18 | 564 | static int |
b4f0e09c | 565 | ctf_dump_type (ctf_id_t id, int flag, void *arg) |
a30b3e18 NA |
566 | { |
567 | char *str; | |
568 | ctf_dump_state_t *state = arg; | |
57f97d0e | 569 | ctf_dump_membstate_t membstate = { &str, state->cds_fp, NULL }; |
a30b3e18 NA |
570 | size_t len; |
571 | ||
b4f0e09c | 572 | if ((str = ctf_dump_format_type (state->cds_fp, id, flag)) == NULL) |
926c9e76 | 573 | goto err; |
a30b3e18 | 574 | |
9323dd86 | 575 | str = str_append (str, "\n"); |
a30b3e18 | 576 | if ((ctf_type_visit (state->cds_fp, id, ctf_dump_member, &membstate)) < 0) |
791915db NA |
577 | { |
578 | if (id == 0 || ctf_errno (state->cds_fp) == ECTF_NONREPRESENTABLE) | |
579 | { | |
580 | ctf_dump_append (state, str); | |
581 | return 0; | |
582 | } | |
926c9e76 NA |
583 | ctf_err_warn (state->cds_fp, 1, ctf_errno (state->cds_fp), |
584 | _("cannot visit members dumping type 0x%lx"), id); | |
791915db NA |
585 | goto err; |
586 | } | |
57f97d0e | 587 | free (membstate.cdm_toplevel_indent); |
a30b3e18 NA |
588 | |
589 | /* Trim off the last linefeed added by ctf_dump_member(). */ | |
590 | len = strlen (str); | |
591 | if (str[len-1] == '\n') | |
592 | str[len-1] = '\0'; | |
593 | ||
594 | ctf_dump_append (state, str); | |
595 | return 0; | |
596 | ||
597 | err: | |
57f97d0e | 598 | free (membstate.cdm_toplevel_indent); |
a30b3e18 | 599 | free (str); |
8e795b46 | 600 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
601 | } |
602 | ||
603 | /* Dump the string table into the cds_items. */ | |
604 | ||
605 | static int | |
139633c3 | 606 | ctf_dump_str (ctf_dict_t *fp, ctf_dump_state_t *state) |
a30b3e18 NA |
607 | { |
608 | const char *s = fp->ctf_str[CTF_STRTAB_0].cts_strs; | |
609 | ||
610 | for (; s < fp->ctf_str[CTF_STRTAB_0].cts_strs + | |
611 | fp->ctf_str[CTF_STRTAB_0].cts_len;) | |
612 | { | |
613 | char *str; | |
57f97d0e | 614 | if (asprintf (&str, "0x%lx: %s", |
595a4d43 | 615 | (unsigned long) (s - fp->ctf_str[CTF_STRTAB_0].cts_strs), |
a30b3e18 | 616 | s) < 0) |
791915db | 617 | return (ctf_set_errno (fp, errno)); |
a30b3e18 NA |
618 | ctf_dump_append (state, str); |
619 | s += strlen (s) + 1; | |
620 | } | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
625 | /* Dump a particular section of a CTF file, in textual form. Call with a | |
626 | pointer to a NULL STATE: each call emits a dynamically allocated string | |
627 | containing a description of one entity in the specified section, in order. | |
628 | Only the first call (with a NULL state) may vary SECT. Once the CTF section | |
629 | has been entirely dumped, the call returns NULL and frees and annuls the | |
630 | STATE, ready for another section to be dumped. The returned textual content | |
631 | may span multiple lines: between each call the FUNC is called with one | |
632 | textual line at a time, and should return a suitably decorated line (it can | |
633 | allocate a new one and return it if it likes). */ | |
634 | ||
635 | char * | |
139633c3 | 636 | ctf_dump (ctf_dict_t *fp, ctf_dump_state_t **statep, ctf_sect_names_t sect, |
a30b3e18 NA |
637 | ctf_dump_decorate_f *func, void *arg) |
638 | { | |
639 | char *str; | |
640 | char *line; | |
641 | ctf_dump_state_t *state = NULL; | |
642 | ||
643 | if (*statep == NULL) | |
644 | { | |
645 | /* Data collection. Transforming a call-at-a-time iterator into a | |
646 | return-at-a-time iterator in a language without call/cc is annoying. It | |
647 | is easiest to simply collect everything at once and then return it bit | |
648 | by bit. The first call will take (much) longer than otherwise, but the | |
649 | amortized time needed is the same. */ | |
650 | ||
de07e349 | 651 | if ((*statep = malloc (sizeof (struct ctf_dump_state))) == NULL) |
a30b3e18 NA |
652 | { |
653 | ctf_set_errno (fp, ENOMEM); | |
654 | goto end; | |
655 | } | |
656 | state = *statep; | |
657 | ||
658 | memset (state, 0, sizeof (struct ctf_dump_state)); | |
659 | state->cds_fp = fp; | |
660 | state->cds_sect = sect; | |
661 | ||
662 | switch (sect) | |
663 | { | |
664 | case CTF_SECT_HEADER: | |
9b32cba4 | 665 | ctf_dump_header (fp, state); |
a30b3e18 NA |
666 | break; |
667 | case CTF_SECT_LABEL: | |
668 | if (ctf_label_iter (fp, ctf_dump_label, state) < 0) | |
669 | { | |
670 | if (ctf_errno (fp) != ECTF_NOLABELDATA) | |
671 | goto end; /* errno is set for us. */ | |
672 | ctf_set_errno (fp, 0); | |
673 | } | |
674 | break; | |
675 | case CTF_SECT_OBJT: | |
4665e895 | 676 | if (ctf_dump_objts (fp, state, 0) < 0) |
a30b3e18 NA |
677 | goto end; /* errno is set for us. */ |
678 | break; | |
679 | case CTF_SECT_FUNC: | |
4665e895 | 680 | if (ctf_dump_objts (fp, state, 1) < 0) |
a30b3e18 NA |
681 | goto end; /* errno is set for us. */ |
682 | break; | |
683 | case CTF_SECT_VAR: | |
684 | if (ctf_variable_iter (fp, ctf_dump_var, state) < 0) | |
685 | goto end; /* errno is set for us. */ | |
686 | break; | |
687 | case CTF_SECT_TYPE: | |
b4f0e09c | 688 | if (ctf_type_iter_all (fp, ctf_dump_type, state) < 0) |
a30b3e18 NA |
689 | goto end; /* errno is set for us. */ |
690 | break; | |
691 | case CTF_SECT_STR: | |
692 | ctf_dump_str (fp, state); | |
693 | break; | |
694 | default: | |
695 | ctf_set_errno (fp, ECTF_DUMPSECTUNKNOWN); | |
696 | goto end; | |
697 | } | |
698 | } | |
699 | else | |
700 | { | |
701 | state = *statep; | |
702 | ||
703 | if (state->cds_sect != sect) | |
704 | { | |
705 | ctf_set_errno (fp, ECTF_DUMPSECTCHANGED); | |
706 | goto end; | |
707 | } | |
708 | } | |
709 | ||
710 | if (state->cds_current == NULL) | |
711 | state->cds_current = ctf_list_next (&state->cds_items); | |
712 | else | |
713 | state->cds_current = ctf_list_next (state->cds_current); | |
714 | ||
715 | if (state->cds_current == NULL) | |
716 | goto end; | |
717 | ||
718 | /* Hookery. There is some extra complexity to preserve linefeeds within each | |
719 | item while removing linefeeds at the end. */ | |
720 | if (func) | |
721 | { | |
722 | size_t len; | |
723 | ||
724 | str = NULL; | |
725 | for (line = state->cds_current->cdi_item; line && *line; ) | |
726 | { | |
727 | char *nline = line; | |
728 | char *ret; | |
729 | ||
730 | nline = strchr (line, '\n'); | |
731 | if (nline) | |
732 | nline[0] = '\0'; | |
733 | ||
734 | ret = func (sect, line, arg); | |
9323dd86 NA |
735 | str = str_append (str, ret); |
736 | str = str_append (str, "\n"); | |
a30b3e18 NA |
737 | if (ret != line) |
738 | free (ret); | |
739 | ||
740 | if (nline) | |
741 | { | |
742 | nline[0] = '\n'; | |
743 | nline++; | |
744 | } | |
745 | ||
746 | line = nline; | |
747 | } | |
748 | ||
749 | len = strlen (str); | |
750 | ||
751 | if (str[len-1] == '\n') | |
752 | str[len-1] = '\0'; | |
753 | } | |
754 | else | |
9323dd86 NA |
755 | { |
756 | str = strdup (state->cds_current->cdi_item); | |
757 | if (!str) | |
758 | { | |
759 | ctf_set_errno (fp, ENOMEM); | |
760 | return str; | |
761 | } | |
762 | } | |
a30b3e18 NA |
763 | |
764 | ctf_set_errno (fp, 0); | |
765 | return str; | |
766 | ||
767 | end: | |
768 | ctf_dump_free (state); | |
de07e349 | 769 | free (state); |
a30b3e18 NA |
770 | ctf_set_errno (fp, 0); |
771 | *statep = NULL; | |
772 | return NULL; | |
773 | } |