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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; | |
91e7ce2f NA |
96 | ctf_arinfo_t ar; |
97 | int kind, unsliced_kind; | |
b4f0e09c NA |
98 | const char *nonroot_leader = ""; |
99 | const char *nonroot_trailer = ""; | |
a30b3e18 NA |
100 | |
101 | id = new_id; | |
b4f0e09c NA |
102 | if (flag == CTF_ADD_NONROOT) |
103 | { | |
104 | nonroot_leader = "{"; | |
105 | nonroot_trailer = "}"; | |
106 | } | |
107 | ||
a30b3e18 NA |
108 | buf = ctf_type_aname (fp, id); |
109 | if (!buf) | |
791915db NA |
110 | { |
111 | if (id == 0 || ctf_errno (fp) == ECTF_NONREPRESENTABLE) | |
112 | { | |
9323dd86 | 113 | str = str_append (str, " (type not represented in CTF)"); |
791915db NA |
114 | ctf_set_errno (fp, ECTF_NOTREF); |
115 | break; | |
116 | } | |
117 | ||
118 | goto err; | |
119 | } | |
a30b3e18 | 120 | |
57f97d0e | 121 | if (asprintf (&bit, " %s0x%lx: ", nonroot_leader, id) < 0) |
70447401 NA |
122 | goto oom; |
123 | str = str_append (str, bit); | |
124 | free (bit); | |
125 | bit = NULL; | |
a30b3e18 | 126 | |
70447401 | 127 | if (buf[0] != '\0') |
91e7ce2f | 128 | str = str_append (str, buf); |
70447401 NA |
129 | |
130 | free (buf); | |
131 | buf = NULL; | |
91e7ce2f NA |
132 | unsliced_kind = ctf_type_kind_unsliced (fp, id); |
133 | kind = ctf_type_kind (fp, id); | |
70447401 NA |
134 | |
135 | /* Slices get a different print representation. */ | |
91e7ce2f | 136 | if (unsliced_kind == CTF_K_SLICE) |
a30b3e18 NA |
137 | { |
138 | ctf_type_encoding (fp, id, &enc); | |
91e7ce2f | 139 | if (asprintf (&bit, " [slice 0x%x:0x%x]", |
70447401 | 140 | enc.cte_offset, enc.cte_bits) < 0) |
a30b3e18 NA |
141 | goto oom; |
142 | } | |
91e7ce2f | 143 | else if (kind == CTF_K_INTEGER) |
a30b3e18 | 144 | { |
70447401 | 145 | ctf_type_encoding (fp, id, &enc); |
91e7ce2f | 146 | if (asprintf (&bit, " [0x%x:0x%x]", |
70447401 | 147 | enc.cte_offset, enc.cte_bits) < 0) |
a30b3e18 NA |
148 | goto oom; |
149 | } | |
70447401 NA |
150 | str = str_append (str, bit); |
151 | free (bit); | |
152 | bit = NULL; | |
153 | ||
ffeece6a | 154 | if (kind != CTF_K_FUNCTION && kind != CTF_K_FORWARD) |
91e7ce2f NA |
155 | if (asprintf (&bit, " (size 0x%lx)%s", |
156 | (unsigned long) ctf_type_size (fp, id), | |
157 | nonroot_trailer) < 0) | |
158 | goto oom; | |
70447401 | 159 | |
9323dd86 | 160 | str = str_append (str, bit); |
a30b3e18 NA |
161 | free (bit); |
162 | bit = NULL; | |
163 | ||
91e7ce2f NA |
164 | /* Keep going as long as this type references another. We consider arrays |
165 | to "reference" their element type. */ | |
166 | ||
167 | if (kind == CTF_K_ARRAY) | |
168 | { | |
169 | if (ctf_array_info (fp, id, &ar) < 0) | |
170 | goto err; | |
171 | new_id = ar.ctr_contents; | |
172 | } | |
173 | else | |
174 | new_id = ctf_type_reference (fp, id); | |
a30b3e18 | 175 | if (new_id != CTF_ERR) |
9323dd86 | 176 | str = str_append (str, " ->"); |
a30b3e18 NA |
177 | } while (new_id != CTF_ERR); |
178 | ||
179 | if (ctf_errno (fp) != ECTF_NOTREF) | |
180 | { | |
181 | free (str); | |
182 | return NULL; | |
183 | } | |
184 | ||
185 | return str; | |
186 | ||
187 | oom: | |
791915db NA |
188 | ctf_set_errno (fp, errno); |
189 | err: | |
926c9e76 | 190 | ctf_err_warn (fp, 1, 0, _("cannot format name dumping type 0x%lx"), id); |
a30b3e18 NA |
191 | free (buf); |
192 | free (str); | |
193 | free (bit); | |
a30b3e18 NA |
194 | return NULL; |
195 | } | |
196 | ||
9b32cba4 NA |
197 | /* Dump one string field from the file header into the cds_items. */ |
198 | static int | |
139633c3 | 199 | ctf_dump_header_strfield (ctf_dict_t *fp, ctf_dump_state_t *state, |
9b32cba4 NA |
200 | const char *name, uint32_t value) |
201 | { | |
202 | char *str; | |
203 | if (value) | |
204 | { | |
205 | if (asprintf (&str, "%s: %s\n", name, ctf_strptr (fp, value)) < 0) | |
206 | goto err; | |
207 | ctf_dump_append (state, str); | |
208 | } | |
209 | return 0; | |
210 | ||
211 | err: | |
791915db | 212 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
213 | } |
214 | ||
215 | /* Dump one section-offset field from the file header into the cds_items. */ | |
216 | static int | |
139633c3 | 217 | ctf_dump_header_sectfield (ctf_dict_t *fp, ctf_dump_state_t *state, |
9b32cba4 NA |
218 | const char *sect, uint32_t off, uint32_t nextoff) |
219 | { | |
220 | char *str; | |
221 | if (nextoff - off) | |
222 | { | |
223 | if (asprintf (&str, "%s:\t0x%lx -- 0x%lx (0x%lx bytes)\n", sect, | |
224 | (unsigned long) off, (unsigned long) (nextoff - 1), | |
225 | (unsigned long) (nextoff - off)) < 0) | |
226 | goto err; | |
227 | ctf_dump_append (state, str); | |
228 | } | |
229 | return 0; | |
230 | ||
231 | err: | |
791915db | 232 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
233 | } |
234 | ||
235 | /* Dump the file header into the cds_items. */ | |
236 | static int | |
139633c3 | 237 | ctf_dump_header (ctf_dict_t *fp, ctf_dump_state_t *state) |
9b32cba4 NA |
238 | { |
239 | char *str; | |
4665e895 | 240 | char *flagstr = NULL; |
9b32cba4 NA |
241 | const ctf_header_t *hp = fp->ctf_header; |
242 | const char *vertab[] = | |
243 | { | |
244 | NULL, "CTF_VERSION_1", | |
245 | "CTF_VERSION_1_UPGRADED_3 (latest format, version 1 type " | |
246 | "boundaries)", | |
247 | "CTF_VERSION_2", | |
248 | "CTF_VERSION_3", NULL | |
249 | }; | |
250 | const char *verstr = NULL; | |
251 | ||
57f97d0e | 252 | if (asprintf (&str, "Magic number: 0x%x\n", hp->cth_magic) < 0) |
9b32cba4 NA |
253 | goto err; |
254 | ctf_dump_append (state, str); | |
255 | ||
256 | if (hp->cth_version <= CTF_VERSION) | |
257 | verstr = vertab[hp->cth_version]; | |
258 | ||
259 | if (verstr == NULL) | |
260 | verstr = "(not a valid version)"; | |
261 | ||
262 | if (asprintf (&str, "Version: %i (%s)\n", hp->cth_version, | |
263 | verstr) < 0) | |
264 | goto err; | |
265 | ctf_dump_append (state, str); | |
266 | ||
267 | /* Everything else is only printed if present. */ | |
268 | ||
139633c3 | 269 | /* The flags are unusual in that they represent the ctf_dict_t *in memory*: |
9b32cba4 NA |
270 | flags representing compression, etc, are turned off as the file is |
271 | decompressed. So we store a copy of the flags before they are changed, for | |
272 | the dumper. */ | |
273 | ||
274 | if (fp->ctf_openflags > 0) | |
275 | { | |
4665e895 NA |
276 | if (asprintf (&flagstr, "%s%s%s%s%s%s%s", |
277 | fp->ctf_openflags & CTF_F_COMPRESS | |
278 | ? "CTF_F_COMPRESS": "", | |
279 | (fp->ctf_openflags & CTF_F_COMPRESS) | |
280 | && (fp->ctf_openflags & ~CTF_F_COMPRESS) | |
281 | ? ", " : "", | |
282 | fp->ctf_openflags & CTF_F_NEWFUNCINFO | |
283 | ? "CTF_F_NEWFUNCINFO" : "", | |
284 | (fp->ctf_openflags & (CTF_F_COMPRESS | CTF_F_NEWFUNCINFO)) | |
285 | && (fp->ctf_openflags & ~(CTF_F_COMPRESS | CTF_F_NEWFUNCINFO)) | |
286 | ? ", " : "", | |
287 | fp->ctf_openflags & CTF_F_IDXSORTED | |
288 | ? "CTF_F_IDXSORTED" : "", | |
289 | fp->ctf_openflags & (CTF_F_COMPRESS | CTF_F_NEWFUNCINFO | |
290 | | CTF_F_IDXSORTED) | |
291 | && (fp->ctf_openflags & ~(CTF_F_COMPRESS | CTF_F_NEWFUNCINFO | |
292 | | CTF_F_IDXSORTED)) | |
293 | ? ", " : "", | |
294 | fp->ctf_openflags & CTF_F_DYNSTR | |
295 | ? "CTF_F_DYNSTR" : "") < 0) | |
296 | goto err; | |
297 | ||
298 | if (asprintf (&str, "Flags: 0x%x (%s)", fp->ctf_openflags, flagstr) < 0) | |
9b32cba4 NA |
299 | goto err; |
300 | ctf_dump_append (state, str); | |
301 | } | |
302 | ||
303 | if (ctf_dump_header_strfield (fp, state, "Parent label", | |
304 | hp->cth_parlabel) < 0) | |
305 | goto err; | |
306 | ||
307 | if (ctf_dump_header_strfield (fp, state, "Parent name", hp->cth_parname) < 0) | |
308 | goto err; | |
309 | ||
310 | if (ctf_dump_header_strfield (fp, state, "Compilation unit name", | |
311 | hp->cth_cuname) < 0) | |
312 | goto err; | |
313 | ||
314 | if (ctf_dump_header_sectfield (fp, state, "Label section", hp->cth_lbloff, | |
315 | hp->cth_objtoff) < 0) | |
316 | goto err; | |
317 | ||
318 | if (ctf_dump_header_sectfield (fp, state, "Data object section", | |
319 | hp->cth_objtoff, hp->cth_funcoff) < 0) | |
320 | goto err; | |
321 | ||
322 | if (ctf_dump_header_sectfield (fp, state, "Function info section", | |
4665e895 NA |
323 | hp->cth_funcoff, hp->cth_objtidxoff) < 0) |
324 | goto err; | |
325 | ||
326 | if (ctf_dump_header_sectfield (fp, state, "Object index section", | |
327 | hp->cth_objtidxoff, hp->cth_funcidxoff) < 0) | |
328 | goto err; | |
329 | ||
330 | if (ctf_dump_header_sectfield (fp, state, "Function index section", | |
331 | hp->cth_funcidxoff, hp->cth_varoff) < 0) | |
9b32cba4 NA |
332 | goto err; |
333 | ||
334 | if (ctf_dump_header_sectfield (fp, state, "Variable section", | |
335 | hp->cth_varoff, hp->cth_typeoff) < 0) | |
336 | goto err; | |
337 | ||
338 | if (ctf_dump_header_sectfield (fp, state, "Type section", | |
339 | hp->cth_typeoff, hp->cth_stroff) < 0) | |
340 | goto err; | |
341 | ||
342 | if (ctf_dump_header_sectfield (fp, state, "String section", hp->cth_stroff, | |
343 | hp->cth_stroff + hp->cth_strlen + 1) < 0) | |
344 | goto err; | |
345 | ||
346 | return 0; | |
347 | err: | |
4665e895 | 348 | free (flagstr); |
791915db | 349 | return (ctf_set_errno (fp, errno)); |
9b32cba4 NA |
350 | } |
351 | ||
a30b3e18 NA |
352 | /* Dump a single label into the cds_items. */ |
353 | ||
354 | static int | |
355 | ctf_dump_label (const char *name, const ctf_lblinfo_t *info, | |
356 | void *arg) | |
357 | { | |
358 | char *str; | |
359 | char *typestr; | |
360 | ctf_dump_state_t *state = arg; | |
361 | ||
362 | if (asprintf (&str, "%s -> ", name) < 0) | |
791915db | 363 | return (ctf_set_errno (state->cds_fp, errno)); |
a30b3e18 | 364 | |
b4f0e09c NA |
365 | if ((typestr = ctf_dump_format_type (state->cds_fp, info->ctb_type, |
366 | CTF_ADD_ROOT)) == NULL) | |
a30b3e18 NA |
367 | { |
368 | free (str); | |
8e795b46 | 369 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
370 | } |
371 | ||
9323dd86 | 372 | str = str_append (str, typestr); |
a30b3e18 NA |
373 | free (typestr); |
374 | ||
375 | ctf_dump_append (state, str); | |
376 | return 0; | |
377 | } | |
378 | ||
4665e895 | 379 | /* Dump all the object or function entries into the cds_items. */ |
a30b3e18 NA |
380 | |
381 | static int | |
4665e895 | 382 | ctf_dump_objts (ctf_dict_t *fp, ctf_dump_state_t *state, int functions) |
a30b3e18 | 383 | { |
4665e895 NA |
384 | const char *name; |
385 | ctf_id_t id; | |
386 | ctf_next_t *i = NULL; | |
387 | char *str = NULL; | |
388 | ||
389 | if ((functions && fp->ctf_funcidx_names) | |
390 | || (!functions && fp->ctf_objtidx_names)) | |
391 | str = str_append (str, _("Section is indexed.\n")); | |
392 | else if (fp->ctf_symtab.cts_data == NULL) | |
393 | str = str_append (str, _("No symbol table.\n")); | |
394 | ||
395 | while ((id = ctf_symbol_next (fp, &i, &name, functions)) != CTF_ERR) | |
a30b3e18 | 396 | { |
4665e895 | 397 | char *typestr = NULL; |
a30b3e18 | 398 | |
91e7ce2f NA |
399 | /* Emit the name, if we know it. No trailing space: ctf_dump_format_type |
400 | has a leading one. */ | |
4665e895 | 401 | if (name) |
a30b3e18 | 402 | { |
91e7ce2f | 403 | if (asprintf (&str, "%s ->", name) < 0) |
4665e895 | 404 | goto oom; |
a30b3e18 | 405 | } |
4665e895 NA |
406 | else |
407 | str = xstrdup (""); | |
a30b3e18 | 408 | |
91e7ce2f NA |
409 | if ((typestr = ctf_dump_format_type (state->cds_fp, id, |
410 | CTF_ADD_ROOT)) == NULL) | |
791915db | 411 | { |
91e7ce2f NA |
412 | ctf_dump_append (state, str); |
413 | continue; /* Swallow the error. */ | |
a30b3e18 NA |
414 | } |
415 | ||
4665e895 | 416 | str = str_append (str, typestr); |
91e7ce2f | 417 | free (typestr); |
a30b3e18 NA |
418 | ctf_dump_append (state, str); |
419 | continue; | |
420 | ||
421 | oom: | |
4665e895 NA |
422 | ctf_set_errno (fp, ENOMEM); |
423 | ctf_next_destroy (i); | |
424 | return -1; | |
a30b3e18 NA |
425 | } |
426 | return 0; | |
427 | } | |
428 | ||
429 | /* Dump a single variable into the cds_items. */ | |
430 | static int | |
431 | ctf_dump_var (const char *name, ctf_id_t type, void *arg) | |
432 | { | |
433 | char *str; | |
434 | char *typestr; | |
435 | ctf_dump_state_t *state = arg; | |
436 | ||
437 | if (asprintf (&str, "%s -> ", name) < 0) | |
791915db | 438 | return (ctf_set_errno (state->cds_fp, errno)); |
a30b3e18 | 439 | |
b4f0e09c NA |
440 | if ((typestr = ctf_dump_format_type (state->cds_fp, type, |
441 | CTF_ADD_ROOT)) == NULL) | |
a30b3e18 NA |
442 | { |
443 | free (str); | |
8e795b46 | 444 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
445 | } |
446 | ||
9323dd86 | 447 | str = str_append (str, typestr); |
a30b3e18 NA |
448 | free (typestr); |
449 | ||
450 | ctf_dump_append (state, str); | |
451 | return 0; | |
452 | } | |
453 | ||
57f97d0e NA |
454 | /* Report the number of digits in the hexadecimal representation of a type |
455 | ID. */ | |
456 | ||
457 | static int | |
458 | type_hex_digits (ctf_id_t id) | |
459 | { | |
460 | int i = 0; | |
461 | ||
462 | if (id == 0) | |
463 | return 1; | |
464 | ||
465 | for (; id > 0; id >>= 4, i++); | |
466 | return i; | |
467 | } | |
468 | ||
a30b3e18 NA |
469 | /* Dump a single member into the string in the membstate. */ |
470 | static int | |
471 | ctf_dump_member (const char *name, ctf_id_t id, unsigned long offset, | |
57f97d0e | 472 | int depth, void *arg) |
a30b3e18 NA |
473 | { |
474 | ctf_dump_membstate_t *state = arg; | |
475 | char *typestr = NULL; | |
476 | char *bit = NULL; | |
477 | ctf_encoding_t ep; | |
70447401 | 478 | int has_encoding = 0; |
ffeece6a | 479 | int opened_paren = 0; |
a30b3e18 | 480 | |
57f97d0e NA |
481 | /* Align neatly. */ |
482 | ||
483 | if (depth == 0) | |
484 | { | |
485 | if (asprintf (&state->cdm_toplevel_indent, " %*s", | |
486 | type_hex_digits (id), "") < 0) | |
487 | goto oom; | |
488 | } | |
489 | ||
490 | if (asprintf (&bit, "%s%*s", state->cdm_toplevel_indent, depth * 4, "") < 0) | |
491 | goto oom; | |
492 | *state->cdm_str = str_append (*state->cdm_str, bit); | |
493 | free (bit); | |
a30b3e18 NA |
494 | |
495 | if ((typestr = ctf_type_aname (state->cdm_fp, id)) == NULL) | |
791915db NA |
496 | { |
497 | if (id == 0 || ctf_errno (state->cdm_fp) == ECTF_NONREPRESENTABLE) | |
498 | { | |
57f97d0e | 499 | if (asprintf (&bit, "[0x%lx] (type not represented in CTF)", |
791915db NA |
500 | offset) < 0) |
501 | goto oom; | |
502 | ||
9323dd86 | 503 | *state->cdm_str = str_append (*state->cdm_str, bit); |
791915db NA |
504 | free (typestr); |
505 | free (bit); | |
506 | return 0; | |
507 | } | |
508 | ||
70447401 NA |
509 | return -1; /* errno is set for us. */ |
510 | } | |
511 | ||
512 | if (ctf_type_encoding (state->cdm_fp, id, &ep) == 0) | |
513 | { | |
514 | has_encoding = 1; | |
515 | ctf_type_encoding (state->cdm_fp, id, &ep); | |
516 | ||
57f97d0e | 517 | if (asprintf (&bit, "[0x%lx] (ID 0x%lx) (kind %i) %s%s%s:%i " |
70447401 NA |
518 | "(aligned at 0x%lx", offset, id, |
519 | ctf_type_kind (state->cdm_fp, id), typestr, | |
520 | (name[0] != 0 && typestr[0] != 0) ? " " : "", name, | |
521 | ep.cte_bits, (unsigned long) ctf_type_align (state->cdm_fp, | |
522 | id)) < 0) | |
523 | goto oom; | |
ffeece6a | 524 | opened_paren = 1; |
70447401 | 525 | } |
ffeece6a | 526 | else if (ctf_type_kind (state->cdm_fp, id) != CTF_K_FORWARD) |
70447401 | 527 | { |
57f97d0e | 528 | if (asprintf (&bit, "[0x%lx] (ID 0x%lx) (kind %i) %s%s%s " |
70447401 NA |
529 | "(aligned at 0x%lx", offset, id, |
530 | ctf_type_kind (state->cdm_fp, id), typestr, | |
531 | (name[0] != 0 && typestr[0] != 0) ? " " : "", name, | |
532 | (unsigned long) ctf_type_align (state->cdm_fp, id)) < 0) | |
533 | goto oom; | |
ffeece6a NA |
534 | opened_paren = 1; |
535 | } | |
536 | else /* Forwards have no alignment. */ | |
537 | { | |
538 | if (asprintf (&bit, "[0x%lx] (ID 0x%lx) (kind %i) %s%s%s\n", offset, id, | |
539 | ctf_type_kind (state->cdm_fp, id), typestr, | |
540 | (name[0] != 0 && typestr[0] != 0) ? " " : "", name) < 0) | |
541 | goto oom; | |
791915db | 542 | } |
a30b3e18 | 543 | |
9323dd86 | 544 | *state->cdm_str = str_append (*state->cdm_str, bit); |
a30b3e18 NA |
545 | free (typestr); |
546 | free (bit); | |
547 | typestr = NULL; | |
548 | bit = NULL; | |
549 | ||
70447401 | 550 | if (has_encoding) |
a30b3e18 | 551 | { |
a30b3e18 NA |
552 | if (asprintf (&bit, ", format 0x%x, offset:bits 0x%x:0x%x", ep.cte_format, |
553 | ep.cte_offset, ep.cte_bits) < 0) | |
554 | goto oom; | |
9323dd86 | 555 | *state->cdm_str = str_append (*state->cdm_str, bit); |
a30b3e18 NA |
556 | free (bit); |
557 | bit = NULL; | |
558 | } | |
559 | ||
ffeece6a NA |
560 | if (opened_paren) |
561 | *state->cdm_str = str_append (*state->cdm_str, ")\n"); | |
a30b3e18 NA |
562 | return 0; |
563 | ||
564 | oom: | |
565 | free (typestr); | |
566 | free (bit); | |
791915db | 567 | return (ctf_set_errno (state->cdm_fp, errno)); |
a30b3e18 NA |
568 | } |
569 | ||
570 | /* Dump a single type into the cds_items. */ | |
a30b3e18 | 571 | static int |
b4f0e09c | 572 | ctf_dump_type (ctf_id_t id, int flag, void *arg) |
a30b3e18 NA |
573 | { |
574 | char *str; | |
575 | ctf_dump_state_t *state = arg; | |
57f97d0e | 576 | ctf_dump_membstate_t membstate = { &str, state->cds_fp, NULL }; |
a30b3e18 NA |
577 | size_t len; |
578 | ||
b4f0e09c | 579 | if ((str = ctf_dump_format_type (state->cds_fp, id, flag)) == NULL) |
926c9e76 | 580 | goto err; |
a30b3e18 | 581 | |
9323dd86 | 582 | str = str_append (str, "\n"); |
a30b3e18 | 583 | if ((ctf_type_visit (state->cds_fp, id, ctf_dump_member, &membstate)) < 0) |
791915db NA |
584 | { |
585 | if (id == 0 || ctf_errno (state->cds_fp) == ECTF_NONREPRESENTABLE) | |
586 | { | |
587 | ctf_dump_append (state, str); | |
588 | return 0; | |
589 | } | |
926c9e76 NA |
590 | ctf_err_warn (state->cds_fp, 1, ctf_errno (state->cds_fp), |
591 | _("cannot visit members dumping type 0x%lx"), id); | |
791915db NA |
592 | goto err; |
593 | } | |
57f97d0e | 594 | free (membstate.cdm_toplevel_indent); |
a30b3e18 NA |
595 | |
596 | /* Trim off the last linefeed added by ctf_dump_member(). */ | |
597 | len = strlen (str); | |
598 | if (str[len-1] == '\n') | |
599 | str[len-1] = '\0'; | |
600 | ||
601 | ctf_dump_append (state, str); | |
602 | return 0; | |
603 | ||
604 | err: | |
57f97d0e | 605 | free (membstate.cdm_toplevel_indent); |
a30b3e18 | 606 | free (str); |
8e795b46 | 607 | return 0; /* Swallow the error. */ |
a30b3e18 NA |
608 | } |
609 | ||
610 | /* Dump the string table into the cds_items. */ | |
611 | ||
612 | static int | |
139633c3 | 613 | ctf_dump_str (ctf_dict_t *fp, ctf_dump_state_t *state) |
a30b3e18 NA |
614 | { |
615 | const char *s = fp->ctf_str[CTF_STRTAB_0].cts_strs; | |
616 | ||
617 | for (; s < fp->ctf_str[CTF_STRTAB_0].cts_strs + | |
618 | fp->ctf_str[CTF_STRTAB_0].cts_len;) | |
619 | { | |
620 | char *str; | |
57f97d0e | 621 | if (asprintf (&str, "0x%lx: %s", |
595a4d43 | 622 | (unsigned long) (s - fp->ctf_str[CTF_STRTAB_0].cts_strs), |
a30b3e18 | 623 | s) < 0) |
791915db | 624 | return (ctf_set_errno (fp, errno)); |
a30b3e18 NA |
625 | ctf_dump_append (state, str); |
626 | s += strlen (s) + 1; | |
627 | } | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
632 | /* Dump a particular section of a CTF file, in textual form. Call with a | |
633 | pointer to a NULL STATE: each call emits a dynamically allocated string | |
634 | containing a description of one entity in the specified section, in order. | |
635 | Only the first call (with a NULL state) may vary SECT. Once the CTF section | |
636 | has been entirely dumped, the call returns NULL and frees and annuls the | |
637 | STATE, ready for another section to be dumped. The returned textual content | |
638 | may span multiple lines: between each call the FUNC is called with one | |
639 | textual line at a time, and should return a suitably decorated line (it can | |
640 | allocate a new one and return it if it likes). */ | |
641 | ||
642 | char * | |
139633c3 | 643 | ctf_dump (ctf_dict_t *fp, ctf_dump_state_t **statep, ctf_sect_names_t sect, |
a30b3e18 NA |
644 | ctf_dump_decorate_f *func, void *arg) |
645 | { | |
646 | char *str; | |
647 | char *line; | |
648 | ctf_dump_state_t *state = NULL; | |
649 | ||
650 | if (*statep == NULL) | |
651 | { | |
652 | /* Data collection. Transforming a call-at-a-time iterator into a | |
653 | return-at-a-time iterator in a language without call/cc is annoying. It | |
654 | is easiest to simply collect everything at once and then return it bit | |
655 | by bit. The first call will take (much) longer than otherwise, but the | |
656 | amortized time needed is the same. */ | |
657 | ||
de07e349 | 658 | if ((*statep = malloc (sizeof (struct ctf_dump_state))) == NULL) |
a30b3e18 NA |
659 | { |
660 | ctf_set_errno (fp, ENOMEM); | |
661 | goto end; | |
662 | } | |
663 | state = *statep; | |
664 | ||
665 | memset (state, 0, sizeof (struct ctf_dump_state)); | |
666 | state->cds_fp = fp; | |
667 | state->cds_sect = sect; | |
668 | ||
669 | switch (sect) | |
670 | { | |
671 | case CTF_SECT_HEADER: | |
9b32cba4 | 672 | ctf_dump_header (fp, state); |
a30b3e18 NA |
673 | break; |
674 | case CTF_SECT_LABEL: | |
675 | if (ctf_label_iter (fp, ctf_dump_label, state) < 0) | |
676 | { | |
677 | if (ctf_errno (fp) != ECTF_NOLABELDATA) | |
678 | goto end; /* errno is set for us. */ | |
679 | ctf_set_errno (fp, 0); | |
680 | } | |
681 | break; | |
682 | case CTF_SECT_OBJT: | |
4665e895 | 683 | if (ctf_dump_objts (fp, state, 0) < 0) |
a30b3e18 NA |
684 | goto end; /* errno is set for us. */ |
685 | break; | |
686 | case CTF_SECT_FUNC: | |
4665e895 | 687 | if (ctf_dump_objts (fp, state, 1) < 0) |
a30b3e18 NA |
688 | goto end; /* errno is set for us. */ |
689 | break; | |
690 | case CTF_SECT_VAR: | |
691 | if (ctf_variable_iter (fp, ctf_dump_var, state) < 0) | |
692 | goto end; /* errno is set for us. */ | |
693 | break; | |
694 | case CTF_SECT_TYPE: | |
b4f0e09c | 695 | if (ctf_type_iter_all (fp, ctf_dump_type, state) < 0) |
a30b3e18 NA |
696 | goto end; /* errno is set for us. */ |
697 | break; | |
698 | case CTF_SECT_STR: | |
699 | ctf_dump_str (fp, state); | |
700 | break; | |
701 | default: | |
702 | ctf_set_errno (fp, ECTF_DUMPSECTUNKNOWN); | |
703 | goto end; | |
704 | } | |
705 | } | |
706 | else | |
707 | { | |
708 | state = *statep; | |
709 | ||
710 | if (state->cds_sect != sect) | |
711 | { | |
712 | ctf_set_errno (fp, ECTF_DUMPSECTCHANGED); | |
713 | goto end; | |
714 | } | |
715 | } | |
716 | ||
717 | if (state->cds_current == NULL) | |
718 | state->cds_current = ctf_list_next (&state->cds_items); | |
719 | else | |
720 | state->cds_current = ctf_list_next (state->cds_current); | |
721 | ||
722 | if (state->cds_current == NULL) | |
723 | goto end; | |
724 | ||
725 | /* Hookery. There is some extra complexity to preserve linefeeds within each | |
726 | item while removing linefeeds at the end. */ | |
727 | if (func) | |
728 | { | |
729 | size_t len; | |
730 | ||
731 | str = NULL; | |
732 | for (line = state->cds_current->cdi_item; line && *line; ) | |
733 | { | |
734 | char *nline = line; | |
735 | char *ret; | |
736 | ||
737 | nline = strchr (line, '\n'); | |
738 | if (nline) | |
739 | nline[0] = '\0'; | |
740 | ||
741 | ret = func (sect, line, arg); | |
9323dd86 NA |
742 | str = str_append (str, ret); |
743 | str = str_append (str, "\n"); | |
a30b3e18 NA |
744 | if (ret != line) |
745 | free (ret); | |
746 | ||
747 | if (nline) | |
748 | { | |
749 | nline[0] = '\n'; | |
750 | nline++; | |
751 | } | |
752 | ||
753 | line = nline; | |
754 | } | |
755 | ||
756 | len = strlen (str); | |
757 | ||
758 | if (str[len-1] == '\n') | |
759 | str[len-1] = '\0'; | |
760 | } | |
761 | else | |
9323dd86 NA |
762 | { |
763 | str = strdup (state->cds_current->cdi_item); | |
764 | if (!str) | |
765 | { | |
766 | ctf_set_errno (fp, ENOMEM); | |
767 | return str; | |
768 | } | |
769 | } | |
a30b3e18 NA |
770 | |
771 | ctf_set_errno (fp, 0); | |
772 | return str; | |
773 | ||
774 | end: | |
775 | ctf_dump_free (state); | |
de07e349 | 776 | free (state); |
a30b3e18 NA |
777 | ctf_set_errno (fp, 0); |
778 | *statep = NULL; | |
779 | return NULL; | |
780 | } |