Commit | Line | Data |
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47d546f4 | 1 | /* CTF file creation. |
b3adc24a | 2 | Copyright (C) 2019-2020 Free Software Foundation, Inc. |
47d546f4 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 <sys/param.h> | |
22 | #include <assert.h> | |
23 | #include <string.h> | |
c1401ecc | 24 | #include <unistd.h> |
47d546f4 NA |
25 | #include <zlib.h> |
26 | ||
555adca2 EZ |
27 | #ifndef EOVERFLOW |
28 | #define EOVERFLOW ERANGE | |
29 | #endif | |
30 | ||
a0486bac JM |
31 | #ifndef roundup |
32 | #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) | |
33 | #endif | |
34 | ||
676c3ecb NA |
35 | /* Make sure the ptrtab has enough space for at least one more type. |
36 | ||
37 | We start with 4KiB of ptrtab, enough for a thousand types, then grow it 25% | |
38 | at a time. */ | |
39 | ||
40 | static int | |
41 | ctf_grow_ptrtab (ctf_file_t *fp) | |
42 | { | |
43 | size_t new_ptrtab_len = fp->ctf_ptrtab_len; | |
44 | ||
45 | /* We allocate one more ptrtab entry than we need, for the initial zero, | |
46 | plus one because the caller will probably allocate a new type. */ | |
47 | ||
48 | if (fp->ctf_ptrtab == NULL) | |
49 | new_ptrtab_len = 1024; | |
50 | else if ((fp->ctf_typemax + 2) > fp->ctf_ptrtab_len) | |
51 | new_ptrtab_len = fp->ctf_ptrtab_len * 1.25; | |
52 | ||
53 | if (new_ptrtab_len != fp->ctf_ptrtab_len) | |
54 | { | |
55 | uint32_t *new_ptrtab; | |
56 | ||
57 | if ((new_ptrtab = realloc (fp->ctf_ptrtab, | |
58 | new_ptrtab_len * sizeof (uint32_t))) == NULL) | |
59 | return (ctf_set_errno (fp, ENOMEM)); | |
60 | ||
61 | fp->ctf_ptrtab = new_ptrtab; | |
62 | memset (fp->ctf_ptrtab + fp->ctf_ptrtab_len, 0, | |
63 | (new_ptrtab_len - fp->ctf_ptrtab_len) * sizeof (uint32_t)); | |
64 | fp->ctf_ptrtab_len = new_ptrtab_len; | |
65 | } | |
66 | return 0; | |
67 | } | |
68 | ||
47d546f4 NA |
69 | /* To create an empty CTF container, we just declare a zeroed header and call |
70 | ctf_bufopen() on it. If ctf_bufopen succeeds, we mark the new container r/w | |
f5e9c9bd NA |
71 | and initialize the dynamic members. We start assigning type IDs at 1 because |
72 | type ID 0 is used as a sentinel and a not-found indicator. */ | |
47d546f4 NA |
73 | |
74 | ctf_file_t * | |
75 | ctf_create (int *errp) | |
76 | { | |
77 | static const ctf_header_t hdr = { .cth_preamble = { CTF_MAGIC, CTF_VERSION, 0 } }; | |
78 | ||
79 | ctf_dynhash_t *dthash; | |
80 | ctf_dynhash_t *dvhash; | |
676c3ecb | 81 | ctf_dynhash_t *structs = NULL, *unions = NULL, *enums = NULL, *names = NULL; |
47d546f4 NA |
82 | ctf_sect_t cts; |
83 | ctf_file_t *fp; | |
84 | ||
85 | libctf_init_debug(); | |
86 | dthash = ctf_dynhash_create (ctf_hash_integer, ctf_hash_eq_integer, | |
87 | NULL, NULL); | |
88 | if (dthash == NULL) | |
89 | { | |
90 | ctf_set_open_errno (errp, EAGAIN); | |
91 | goto err; | |
92 | } | |
93 | ||
94 | dvhash = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string, | |
95 | NULL, NULL); | |
96 | if (dvhash == NULL) | |
97 | { | |
98 | ctf_set_open_errno (errp, EAGAIN); | |
99 | goto err_dt; | |
100 | } | |
101 | ||
676c3ecb NA |
102 | structs = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string, |
103 | NULL, NULL); | |
104 | unions = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string, | |
105 | NULL, NULL); | |
106 | enums = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string, | |
107 | NULL, NULL); | |
108 | names = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string, | |
109 | NULL, NULL); | |
110 | if (!structs || !unions || !enums || !names) | |
47d546f4 NA |
111 | { |
112 | ctf_set_open_errno (errp, EAGAIN); | |
113 | goto err_dv; | |
114 | } | |
115 | ||
116 | cts.cts_name = _CTF_SECTION; | |
47d546f4 NA |
117 | cts.cts_data = &hdr; |
118 | cts.cts_size = sizeof (hdr); | |
119 | cts.cts_entsize = 1; | |
47d546f4 | 120 | |
676c3ecb NA |
121 | if ((fp = ctf_bufopen_internal (&cts, NULL, NULL, NULL, 1, errp)) == NULL) |
122 | goto err_dv; | |
47d546f4 | 123 | |
676c3ecb NA |
124 | fp->ctf_structs.ctn_writable = structs; |
125 | fp->ctf_unions.ctn_writable = unions; | |
126 | fp->ctf_enums.ctn_writable = enums; | |
127 | fp->ctf_names.ctn_writable = names; | |
47d546f4 NA |
128 | fp->ctf_dthash = dthash; |
129 | fp->ctf_dvhash = dvhash; | |
47d546f4 | 130 | fp->ctf_dtoldid = 0; |
f57cf0e3 | 131 | fp->ctf_snapshots = 1; |
47d546f4 | 132 | fp->ctf_snapshot_lu = 0; |
dd987f00 | 133 | fp->ctf_flags |= LCTF_DIRTY; |
47d546f4 | 134 | |
676c3ecb NA |
135 | ctf_set_ctl_hashes (fp); |
136 | ctf_setmodel (fp, CTF_MODEL_NATIVE); | |
137 | if (ctf_grow_ptrtab (fp) < 0) | |
138 | { | |
139 | ctf_set_open_errno (errp, ctf_errno (fp)); | |
140 | ctf_file_close (fp); | |
141 | return NULL; | |
142 | } | |
143 | ||
47d546f4 NA |
144 | return fp; |
145 | ||
47d546f4 | 146 | err_dv: |
676c3ecb NA |
147 | ctf_dynhash_destroy (structs); |
148 | ctf_dynhash_destroy (unions); | |
149 | ctf_dynhash_destroy (enums); | |
150 | ctf_dynhash_destroy (names); | |
47d546f4 NA |
151 | ctf_dynhash_destroy (dvhash); |
152 | err_dt: | |
153 | ctf_dynhash_destroy (dthash); | |
154 | err: | |
155 | return NULL; | |
156 | } | |
157 | ||
158 | static unsigned char * | |
f5e9c9bd | 159 | ctf_copy_smembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t) |
47d546f4 NA |
160 | { |
161 | ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
162 | ctf_member_t ctm; | |
163 | ||
164 | for (; dmd != NULL; dmd = ctf_list_next (dmd)) | |
165 | { | |
f5e9c9bd | 166 | ctf_member_t *copied; |
47d546f4 | 167 | |
f5e9c9bd | 168 | ctm.ctm_name = 0; |
47d546f4 NA |
169 | ctm.ctm_type = (uint32_t) dmd->dmd_type; |
170 | ctm.ctm_offset = (uint32_t) dmd->dmd_offset; | |
171 | ||
172 | memcpy (t, &ctm, sizeof (ctm)); | |
f5e9c9bd NA |
173 | copied = (ctf_member_t *) t; |
174 | if (dmd->dmd_name) | |
175 | ctf_str_add_ref (fp, dmd->dmd_name, &copied->ctm_name); | |
176 | ||
47d546f4 NA |
177 | t += sizeof (ctm); |
178 | } | |
179 | ||
180 | return t; | |
181 | } | |
182 | ||
183 | static unsigned char * | |
f5e9c9bd | 184 | ctf_copy_lmembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t) |
47d546f4 NA |
185 | { |
186 | ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
187 | ctf_lmember_t ctlm; | |
188 | ||
189 | for (; dmd != NULL; dmd = ctf_list_next (dmd)) | |
190 | { | |
f5e9c9bd | 191 | ctf_lmember_t *copied; |
47d546f4 | 192 | |
f5e9c9bd | 193 | ctlm.ctlm_name = 0; |
47d546f4 NA |
194 | ctlm.ctlm_type = (uint32_t) dmd->dmd_type; |
195 | ctlm.ctlm_offsethi = CTF_OFFSET_TO_LMEMHI (dmd->dmd_offset); | |
196 | ctlm.ctlm_offsetlo = CTF_OFFSET_TO_LMEMLO (dmd->dmd_offset); | |
197 | ||
198 | memcpy (t, &ctlm, sizeof (ctlm)); | |
f5e9c9bd NA |
199 | copied = (ctf_lmember_t *) t; |
200 | if (dmd->dmd_name) | |
201 | ctf_str_add_ref (fp, dmd->dmd_name, &copied->ctlm_name); | |
202 | ||
47d546f4 NA |
203 | t += sizeof (ctlm); |
204 | } | |
205 | ||
206 | return t; | |
207 | } | |
208 | ||
209 | static unsigned char * | |
f5e9c9bd | 210 | ctf_copy_emembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t) |
47d546f4 NA |
211 | { |
212 | ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
213 | ctf_enum_t cte; | |
214 | ||
215 | for (; dmd != NULL; dmd = ctf_list_next (dmd)) | |
216 | { | |
f5e9c9bd NA |
217 | ctf_enum_t *copied; |
218 | ||
47d546f4 | 219 | cte.cte_value = dmd->dmd_value; |
47d546f4 | 220 | memcpy (t, &cte, sizeof (cte)); |
f5e9c9bd NA |
221 | copied = (ctf_enum_t *) t; |
222 | ctf_str_add_ref (fp, dmd->dmd_name, &copied->cte_name); | |
47d546f4 NA |
223 | t += sizeof (cte); |
224 | } | |
225 | ||
226 | return t; | |
227 | } | |
228 | ||
47d546f4 NA |
229 | /* Sort a newly-constructed static variable array. */ |
230 | ||
d851ecd3 NA |
231 | typedef struct ctf_sort_var_arg_cb |
232 | { | |
233 | ctf_file_t *fp; | |
234 | ctf_strs_t *strtab; | |
235 | } ctf_sort_var_arg_cb_t; | |
236 | ||
47d546f4 | 237 | static int |
d851ecd3 | 238 | ctf_sort_var (const void *one_, const void *two_, void *arg_) |
47d546f4 NA |
239 | { |
240 | const ctf_varent_t *one = one_; | |
241 | const ctf_varent_t *two = two_; | |
d851ecd3 | 242 | ctf_sort_var_arg_cb_t *arg = arg_; |
47d546f4 | 243 | |
d851ecd3 NA |
244 | return (strcmp (ctf_strraw_explicit (arg->fp, one->ctv_name, arg->strtab), |
245 | ctf_strraw_explicit (arg->fp, two->ctv_name, arg->strtab))); | |
47d546f4 NA |
246 | } |
247 | ||
676c3ecb | 248 | /* Compatibility: just update the threshold for ctf_discard. */ |
47d546f4 NA |
249 | int |
250 | ctf_update (ctf_file_t *fp) | |
676c3ecb NA |
251 | { |
252 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
253 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
254 | ||
255 | fp->ctf_dtoldid = fp->ctf_typemax; | |
256 | return 0; | |
257 | } | |
258 | ||
259 | /* If the specified CTF container is writable and has been modified, reload this | |
260 | container with the updated type definitions, ready for serialization. In | |
261 | order to make this code and the rest of libctf as simple as possible, we | |
262 | perform updates by taking the dynamic type definitions and creating an | |
263 | in-memory CTF file containing the definitions, and then call | |
264 | ctf_simple_open_internal() on it. We perform one extra trick here for the | |
265 | benefit of callers and to keep our code simple: ctf_simple_open_internal() | |
266 | will return a new ctf_file_t, but we want to keep the fp constant for the | |
267 | caller, so after ctf_simple_open_internal() returns, we use memcpy to swap | |
268 | the interior of the old and new ctf_file_t's, and then free the old. */ | |
269 | int | |
270 | ctf_serialize (ctf_file_t *fp) | |
47d546f4 NA |
271 | { |
272 | ctf_file_t ofp, *nfp; | |
f5e9c9bd | 273 | ctf_header_t hdr, *hdrp; |
47d546f4 NA |
274 | ctf_dtdef_t *dtd; |
275 | ctf_dvdef_t *dvd; | |
276 | ctf_varent_t *dvarents; | |
f5e9c9bd | 277 | ctf_strs_writable_t strtab; |
47d546f4 | 278 | |
f5e9c9bd | 279 | unsigned char *t; |
47d546f4 NA |
280 | unsigned long i; |
281 | size_t buf_size, type_size, nvars; | |
f5e9c9bd | 282 | unsigned char *buf, *newbuf; |
47d546f4 NA |
283 | int err; |
284 | ||
285 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
286 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
287 | ||
288 | /* Update required? */ | |
289 | if (!(fp->ctf_flags & LCTF_DIRTY)) | |
290 | return 0; | |
291 | ||
292 | /* Fill in an initial CTF header. We will leave the label, object, | |
293 | and function sections empty and only output a header, type section, | |
294 | and string table. The type section begins at a 4-byte aligned | |
295 | boundary past the CTF header itself (at relative offset zero). */ | |
296 | ||
297 | memset (&hdr, 0, sizeof (hdr)); | |
298 | hdr.cth_magic = CTF_MAGIC; | |
299 | hdr.cth_version = CTF_VERSION; | |
300 | ||
47d546f4 NA |
301 | /* Iterate through the dynamic type definition list and compute the |
302 | size of the CTF type section we will need to generate. */ | |
303 | ||
304 | for (type_size = 0, dtd = ctf_list_next (&fp->ctf_dtdefs); | |
305 | dtd != NULL; dtd = ctf_list_next (dtd)) | |
306 | { | |
307 | uint32_t kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); | |
308 | uint32_t vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info); | |
309 | ||
310 | if (dtd->dtd_data.ctt_size != CTF_LSIZE_SENT) | |
311 | type_size += sizeof (ctf_stype_t); | |
312 | else | |
313 | type_size += sizeof (ctf_type_t); | |
314 | ||
315 | switch (kind) | |
316 | { | |
317 | case CTF_K_INTEGER: | |
318 | case CTF_K_FLOAT: | |
319 | type_size += sizeof (uint32_t); | |
320 | break; | |
321 | case CTF_K_ARRAY: | |
322 | type_size += sizeof (ctf_array_t); | |
323 | break; | |
324 | case CTF_K_SLICE: | |
325 | type_size += sizeof (ctf_slice_t); | |
326 | break; | |
327 | case CTF_K_FUNCTION: | |
328 | type_size += sizeof (uint32_t) * (vlen + (vlen & 1)); | |
329 | break; | |
330 | case CTF_K_STRUCT: | |
331 | case CTF_K_UNION: | |
332 | if (dtd->dtd_data.ctt_size < CTF_LSTRUCT_THRESH) | |
333 | type_size += sizeof (ctf_member_t) * vlen; | |
334 | else | |
335 | type_size += sizeof (ctf_lmember_t) * vlen; | |
336 | break; | |
337 | case CTF_K_ENUM: | |
338 | type_size += sizeof (ctf_enum_t) * vlen; | |
339 | break; | |
340 | } | |
341 | } | |
342 | ||
343 | /* Computing the number of entries in the CTF variable section is much | |
344 | simpler. */ | |
345 | ||
346 | for (nvars = 0, dvd = ctf_list_next (&fp->ctf_dvdefs); | |
347 | dvd != NULL; dvd = ctf_list_next (dvd), nvars++); | |
348 | ||
f5e9c9bd NA |
349 | /* Compute the size of the CTF buffer we need, sans only the string table, |
350 | then allocate a new buffer and memcpy the finished header to the start of | |
351 | the buffer. (We will adjust this later with strtab length info.) */ | |
47d546f4 NA |
352 | |
353 | hdr.cth_typeoff = hdr.cth_varoff + (nvars * sizeof (ctf_varent_t)); | |
354 | hdr.cth_stroff = hdr.cth_typeoff + type_size; | |
f5e9c9bd | 355 | hdr.cth_strlen = 0; |
47d546f4 NA |
356 | |
357 | buf_size = sizeof (ctf_header_t) + hdr.cth_stroff + hdr.cth_strlen; | |
358 | ||
65365aa8 | 359 | if ((buf = malloc (buf_size)) == NULL) |
47d546f4 NA |
360 | return (ctf_set_errno (fp, EAGAIN)); |
361 | ||
362 | memcpy (buf, &hdr, sizeof (ctf_header_t)); | |
363 | t = (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_varoff; | |
47d546f4 | 364 | |
f5e9c9bd NA |
365 | hdrp = (ctf_header_t *) buf; |
366 | if ((fp->ctf_flags & LCTF_CHILD) && (fp->ctf_parname != NULL)) | |
367 | ctf_str_add_ref (fp, fp->ctf_parname, &hdrp->cth_parname); | |
fd55eae8 NA |
368 | if (fp->ctf_cuname != NULL) |
369 | ctf_str_add_ref (fp, fp->ctf_cuname, &hdrp->cth_cuname); | |
47d546f4 | 370 | |
f5e9c9bd NA |
371 | /* Work over the variable list, translating everything into ctf_varent_t's and |
372 | prepping the string table. */ | |
47d546f4 NA |
373 | |
374 | dvarents = (ctf_varent_t *) t; | |
375 | for (i = 0, dvd = ctf_list_next (&fp->ctf_dvdefs); dvd != NULL; | |
376 | dvd = ctf_list_next (dvd), i++) | |
377 | { | |
378 | ctf_varent_t *var = &dvarents[i]; | |
47d546f4 | 379 | |
f5e9c9bd | 380 | ctf_str_add_ref (fp, dvd->dvd_name, &var->ctv_name); |
9943fa3a | 381 | var->ctv_type = (uint32_t) dvd->dvd_type; |
47d546f4 NA |
382 | } |
383 | assert (i == nvars); | |
384 | ||
47d546f4 NA |
385 | t += sizeof (ctf_varent_t) * nvars; |
386 | ||
387 | assert (t == (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_typeoff); | |
388 | ||
f5e9c9bd NA |
389 | /* We now take a final lap through the dynamic type definition list and copy |
390 | the appropriate type records to the output buffer, noting down the | |
391 | strings as we go. */ | |
47d546f4 NA |
392 | |
393 | for (dtd = ctf_list_next (&fp->ctf_dtdefs); | |
394 | dtd != NULL; dtd = ctf_list_next (dtd)) | |
395 | { | |
47d546f4 NA |
396 | uint32_t kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); |
397 | uint32_t vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info); | |
398 | ||
399 | ctf_array_t cta; | |
400 | uint32_t encoding; | |
401 | size_t len; | |
f5e9c9bd | 402 | ctf_stype_t *copied; |
676c3ecb | 403 | const char *name; |
47d546f4 NA |
404 | |
405 | if (dtd->dtd_data.ctt_size != CTF_LSIZE_SENT) | |
406 | len = sizeof (ctf_stype_t); | |
407 | else | |
408 | len = sizeof (ctf_type_t); | |
409 | ||
410 | memcpy (t, &dtd->dtd_data, len); | |
f5e9c9bd | 411 | copied = (ctf_stype_t *) t; /* name is at the start: constant offset. */ |
676c3ecb NA |
412 | if (copied->ctt_name |
413 | && (name = ctf_strraw (fp, copied->ctt_name)) != NULL) | |
414 | ctf_str_add_ref (fp, name, &copied->ctt_name); | |
47d546f4 NA |
415 | t += len; |
416 | ||
417 | switch (kind) | |
418 | { | |
419 | case CTF_K_INTEGER: | |
420 | case CTF_K_FLOAT: | |
421 | if (kind == CTF_K_INTEGER) | |
422 | { | |
423 | encoding = CTF_INT_DATA (dtd->dtd_u.dtu_enc.cte_format, | |
424 | dtd->dtd_u.dtu_enc.cte_offset, | |
425 | dtd->dtd_u.dtu_enc.cte_bits); | |
426 | } | |
427 | else | |
428 | { | |
429 | encoding = CTF_FP_DATA (dtd->dtd_u.dtu_enc.cte_format, | |
430 | dtd->dtd_u.dtu_enc.cte_offset, | |
431 | dtd->dtd_u.dtu_enc.cte_bits); | |
432 | } | |
433 | memcpy (t, &encoding, sizeof (encoding)); | |
434 | t += sizeof (encoding); | |
435 | break; | |
436 | ||
437 | case CTF_K_SLICE: | |
438 | memcpy (t, &dtd->dtd_u.dtu_slice, sizeof (struct ctf_slice)); | |
439 | t += sizeof (struct ctf_slice); | |
440 | break; | |
441 | ||
442 | case CTF_K_ARRAY: | |
443 | cta.cta_contents = (uint32_t) dtd->dtd_u.dtu_arr.ctr_contents; | |
444 | cta.cta_index = (uint32_t) dtd->dtd_u.dtu_arr.ctr_index; | |
445 | cta.cta_nelems = dtd->dtd_u.dtu_arr.ctr_nelems; | |
446 | memcpy (t, &cta, sizeof (cta)); | |
447 | t += sizeof (cta); | |
448 | break; | |
449 | ||
450 | case CTF_K_FUNCTION: | |
451 | { | |
452 | uint32_t *argv = (uint32_t *) (uintptr_t) t; | |
453 | uint32_t argc; | |
454 | ||
455 | for (argc = 0; argc < vlen; argc++) | |
afd78bd6 | 456 | *argv++ = dtd->dtd_u.dtu_argv[argc]; |
47d546f4 NA |
457 | |
458 | if (vlen & 1) | |
459 | *argv++ = 0; /* Pad to 4-byte boundary. */ | |
460 | ||
461 | t = (unsigned char *) argv; | |
462 | break; | |
463 | } | |
464 | ||
465 | case CTF_K_STRUCT: | |
466 | case CTF_K_UNION: | |
467 | if (dtd->dtd_data.ctt_size < CTF_LSTRUCT_THRESH) | |
f5e9c9bd | 468 | t = ctf_copy_smembers (fp, dtd, t); |
47d546f4 | 469 | else |
f5e9c9bd | 470 | t = ctf_copy_lmembers (fp, dtd, t); |
47d546f4 NA |
471 | break; |
472 | ||
473 | case CTF_K_ENUM: | |
f5e9c9bd | 474 | t = ctf_copy_emembers (fp, dtd, t); |
47d546f4 NA |
475 | break; |
476 | } | |
477 | } | |
478 | assert (t == (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_stroff); | |
479 | ||
f5e9c9bd NA |
480 | /* Construct the final string table and fill out all the string refs with the |
481 | final offsets. Then purge the refs list, because we're about to move this | |
482 | strtab onto the end of the buf, invalidating all the offsets. */ | |
483 | strtab = ctf_str_write_strtab (fp); | |
484 | ctf_str_purge_refs (fp); | |
485 | ||
d851ecd3 NA |
486 | if (strtab.cts_strs == NULL) |
487 | { | |
de07e349 | 488 | free (buf); |
d851ecd3 NA |
489 | return (ctf_set_errno (fp, EAGAIN)); |
490 | } | |
491 | ||
f5e9c9bd NA |
492 | /* Now the string table is constructed, we can sort the buffer of |
493 | ctf_varent_t's. */ | |
d851ecd3 | 494 | ctf_sort_var_arg_cb_t sort_var_arg = { fp, (ctf_strs_t *) &strtab }; |
f5e9c9bd | 495 | ctf_qsort_r (dvarents, nvars, sizeof (ctf_varent_t), ctf_sort_var, |
d851ecd3 | 496 | &sort_var_arg); |
f5e9c9bd NA |
497 | |
498 | if ((newbuf = ctf_realloc (fp, buf, buf_size + strtab.cts_len)) == NULL) | |
499 | { | |
de07e349 NA |
500 | free (buf); |
501 | free (strtab.cts_strs); | |
f5e9c9bd NA |
502 | return (ctf_set_errno (fp, EAGAIN)); |
503 | } | |
504 | buf = newbuf; | |
505 | memcpy (buf + buf_size, strtab.cts_strs, strtab.cts_len); | |
506 | hdrp = (ctf_header_t *) buf; | |
507 | hdrp->cth_strlen = strtab.cts_len; | |
508 | buf_size += hdrp->cth_strlen; | |
de07e349 | 509 | free (strtab.cts_strs); |
f5e9c9bd | 510 | |
47d546f4 NA |
511 | /* Finally, we are ready to ctf_simple_open() the new container. If this |
512 | is successful, we then switch nfp and fp and free the old container. */ | |
513 | ||
d851ecd3 NA |
514 | if ((nfp = ctf_simple_open_internal ((char *) buf, buf_size, NULL, 0, |
515 | 0, NULL, 0, fp->ctf_syn_ext_strtab, | |
676c3ecb | 516 | 1, &err)) == NULL) |
47d546f4 | 517 | { |
de07e349 | 518 | free (buf); |
47d546f4 NA |
519 | return (ctf_set_errno (fp, err)); |
520 | } | |
521 | ||
522 | (void) ctf_setmodel (nfp, ctf_getmodel (fp)); | |
47d546f4 | 523 | |
1fa7a0c2 NA |
524 | nfp->ctf_parent = fp->ctf_parent; |
525 | nfp->ctf_parent_unreffed = fp->ctf_parent_unreffed; | |
47d546f4 NA |
526 | nfp->ctf_refcnt = fp->ctf_refcnt; |
527 | nfp->ctf_flags |= fp->ctf_flags & ~LCTF_DIRTY; | |
fd55eae8 NA |
528 | if (nfp->ctf_dynbase == NULL) |
529 | nfp->ctf_dynbase = buf; /* Make sure buf is freed on close. */ | |
47d546f4 NA |
530 | nfp->ctf_dthash = fp->ctf_dthash; |
531 | nfp->ctf_dtdefs = fp->ctf_dtdefs; | |
47d546f4 NA |
532 | nfp->ctf_dvhash = fp->ctf_dvhash; |
533 | nfp->ctf_dvdefs = fp->ctf_dvdefs; | |
676c3ecb | 534 | nfp->ctf_dtoldid = fp->ctf_dtoldid; |
99dc3ebd | 535 | nfp->ctf_add_processing = fp->ctf_add_processing; |
47d546f4 NA |
536 | nfp->ctf_snapshots = fp->ctf_snapshots + 1; |
537 | nfp->ctf_specific = fp->ctf_specific; | |
676c3ecb NA |
538 | nfp->ctf_ptrtab = fp->ctf_ptrtab; |
539 | nfp->ctf_ptrtab_len = fp->ctf_ptrtab_len; | |
72c83edd NA |
540 | nfp->ctf_link_inputs = fp->ctf_link_inputs; |
541 | nfp->ctf_link_outputs = fp->ctf_link_outputs; | |
8b37e7b6 | 542 | nfp->ctf_errs_warnings = fp->ctf_errs_warnings; |
676c3ecb | 543 | nfp->ctf_str_prov_offset = fp->ctf_str_prov_offset; |
d851ecd3 | 544 | nfp->ctf_syn_ext_strtab = fp->ctf_syn_ext_strtab; |
5f54462c NA |
545 | nfp->ctf_link_in_cu_mapping = fp->ctf_link_in_cu_mapping; |
546 | nfp->ctf_link_out_cu_mapping = fp->ctf_link_out_cu_mapping; | |
886453cb | 547 | nfp->ctf_link_type_mapping = fp->ctf_link_type_mapping; |
49ea9b45 NA |
548 | nfp->ctf_link_memb_name_changer = fp->ctf_link_memb_name_changer; |
549 | nfp->ctf_link_memb_name_changer_arg = fp->ctf_link_memb_name_changer_arg; | |
6dd2819f NA |
550 | nfp->ctf_link_variable_filter = fp->ctf_link_variable_filter; |
551 | nfp->ctf_link_variable_filter_arg = fp->ctf_link_variable_filter_arg; | |
8d2229ad | 552 | nfp->ctf_link_flags = fp->ctf_link_flags; |
0f0c11f7 NA |
553 | nfp->ctf_dedup_atoms = fp->ctf_dedup_atoms; |
554 | nfp->ctf_dedup_atoms_alloc = fp->ctf_dedup_atoms_alloc; | |
555 | memcpy (&nfp->ctf_dedup, &fp->ctf_dedup, sizeof (fp->ctf_dedup)); | |
47d546f4 NA |
556 | |
557 | nfp->ctf_snapshot_lu = fp->ctf_snapshots; | |
558 | ||
676c3ecb NA |
559 | memcpy (&nfp->ctf_lookups, fp->ctf_lookups, sizeof (fp->ctf_lookups)); |
560 | nfp->ctf_structs = fp->ctf_structs; | |
561 | nfp->ctf_unions = fp->ctf_unions; | |
562 | nfp->ctf_enums = fp->ctf_enums; | |
563 | nfp->ctf_names = fp->ctf_names; | |
564 | ||
47d546f4 | 565 | fp->ctf_dthash = NULL; |
f5e9c9bd NA |
566 | ctf_str_free_atoms (nfp); |
567 | nfp->ctf_str_atoms = fp->ctf_str_atoms; | |
676c3ecb | 568 | nfp->ctf_prov_strtab = fp->ctf_prov_strtab; |
f5e9c9bd | 569 | fp->ctf_str_atoms = NULL; |
676c3ecb | 570 | fp->ctf_prov_strtab = NULL; |
47d546f4 | 571 | memset (&fp->ctf_dtdefs, 0, sizeof (ctf_list_t)); |
8b37e7b6 | 572 | memset (&fp->ctf_errs_warnings, 0, sizeof (ctf_list_t)); |
99dc3ebd | 573 | fp->ctf_add_processing = NULL; |
676c3ecb | 574 | fp->ctf_ptrtab = NULL; |
72c83edd NA |
575 | fp->ctf_link_inputs = NULL; |
576 | fp->ctf_link_outputs = NULL; | |
d851ecd3 | 577 | fp->ctf_syn_ext_strtab = NULL; |
5f54462c NA |
578 | fp->ctf_link_in_cu_mapping = NULL; |
579 | fp->ctf_link_out_cu_mapping = NULL; | |
886453cb | 580 | fp->ctf_link_type_mapping = NULL; |
0f0c11f7 NA |
581 | fp->ctf_dedup_atoms = NULL; |
582 | fp->ctf_dedup_atoms_alloc = NULL; | |
1fa7a0c2 | 583 | fp->ctf_parent_unreffed = 1; |
47d546f4 NA |
584 | |
585 | fp->ctf_dvhash = NULL; | |
586 | memset (&fp->ctf_dvdefs, 0, sizeof (ctf_list_t)); | |
676c3ecb | 587 | memset (fp->ctf_lookups, 0, sizeof (fp->ctf_lookups)); |
0f0c11f7 | 588 | memset (&fp->ctf_dedup, 0, sizeof (fp->ctf_dedup)); |
676c3ecb NA |
589 | fp->ctf_structs.ctn_writable = NULL; |
590 | fp->ctf_unions.ctn_writable = NULL; | |
591 | fp->ctf_enums.ctn_writable = NULL; | |
592 | fp->ctf_names.ctn_writable = NULL; | |
47d546f4 NA |
593 | |
594 | memcpy (&ofp, fp, sizeof (ctf_file_t)); | |
595 | memcpy (fp, nfp, sizeof (ctf_file_t)); | |
596 | memcpy (nfp, &ofp, sizeof (ctf_file_t)); | |
597 | ||
47d546f4 NA |
598 | nfp->ctf_refcnt = 1; /* Force nfp to be freed. */ |
599 | ctf_file_close (nfp); | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
676c3ecb NA |
604 | ctf_names_t * |
605 | ctf_name_table (ctf_file_t *fp, int kind) | |
47d546f4 | 606 | { |
47d546f4 NA |
607 | switch (kind) |
608 | { | |
609 | case CTF_K_STRUCT: | |
676c3ecb | 610 | return &fp->ctf_structs; |
47d546f4 | 611 | case CTF_K_UNION: |
676c3ecb | 612 | return &fp->ctf_unions; |
47d546f4 | 613 | case CTF_K_ENUM: |
676c3ecb | 614 | return &fp->ctf_enums; |
47d546f4 | 615 | default: |
676c3ecb | 616 | return &fp->ctf_names; |
47d546f4 | 617 | } |
47d546f4 NA |
618 | } |
619 | ||
24865428 | 620 | int |
fe4c2d55 | 621 | ctf_dtd_insert (ctf_file_t *fp, ctf_dtdef_t *dtd, int flag, int kind) |
47d546f4 | 622 | { |
676c3ecb | 623 | const char *name; |
8c419a91 NA |
624 | if (ctf_dynhash_insert (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type, |
625 | dtd) < 0) | |
24865428 NA |
626 | return -1; |
627 | ||
fe4c2d55 | 628 | if (flag == CTF_ADD_ROOT && dtd->dtd_data.ctt_name |
676c3ecb | 629 | && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL) |
47d546f4 | 630 | { |
676c3ecb | 631 | if (ctf_dynhash_insert (ctf_name_table (fp, kind)->ctn_writable, |
8c419a91 NA |
632 | (char *) name, (void *) (uintptr_t) |
633 | dtd->dtd_type) < 0) | |
676c3ecb | 634 | { |
8c419a91 NA |
635 | ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t) |
636 | dtd->dtd_type); | |
676c3ecb NA |
637 | return -1; |
638 | } | |
47d546f4 | 639 | } |
24865428 NA |
640 | ctf_list_append (&fp->ctf_dtdefs, dtd); |
641 | return 0; | |
47d546f4 NA |
642 | } |
643 | ||
644 | void | |
645 | ctf_dtd_delete (ctf_file_t *fp, ctf_dtdef_t *dtd) | |
646 | { | |
647 | ctf_dmdef_t *dmd, *nmd; | |
648 | int kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); | |
8ffcdf18 | 649 | int name_kind = kind; |
676c3ecb | 650 | const char *name; |
47d546f4 | 651 | |
8c419a91 | 652 | ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type); |
47d546f4 NA |
653 | |
654 | switch (kind) | |
655 | { | |
656 | case CTF_K_STRUCT: | |
657 | case CTF_K_UNION: | |
658 | case CTF_K_ENUM: | |
659 | for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
660 | dmd != NULL; dmd = nmd) | |
661 | { | |
662 | if (dmd->dmd_name != NULL) | |
de07e349 | 663 | free (dmd->dmd_name); |
47d546f4 | 664 | nmd = ctf_list_next (dmd); |
de07e349 | 665 | free (dmd); |
47d546f4 NA |
666 | } |
667 | break; | |
668 | case CTF_K_FUNCTION: | |
de07e349 | 669 | free (dtd->dtd_u.dtu_argv); |
47d546f4 | 670 | break; |
8ffcdf18 NA |
671 | case CTF_K_FORWARD: |
672 | name_kind = dtd->dtd_data.ctt_type; | |
673 | break; | |
47d546f4 NA |
674 | } |
675 | ||
676c3ecb | 676 | if (dtd->dtd_data.ctt_name |
fe4c2d55 NA |
677 | && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL |
678 | && LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info)) | |
47d546f4 | 679 | { |
8ffcdf18 | 680 | ctf_dynhash_remove (ctf_name_table (fp, name_kind)->ctn_writable, |
676c3ecb NA |
681 | name); |
682 | ctf_str_remove_ref (fp, name, &dtd->dtd_data.ctt_name); | |
47d546f4 NA |
683 | } |
684 | ||
685 | ctf_list_delete (&fp->ctf_dtdefs, dtd); | |
de07e349 | 686 | free (dtd); |
47d546f4 NA |
687 | } |
688 | ||
689 | ctf_dtdef_t * | |
690 | ctf_dtd_lookup (const ctf_file_t *fp, ctf_id_t type) | |
691 | { | |
8c419a91 NA |
692 | return (ctf_dtdef_t *) |
693 | ctf_dynhash_lookup (fp->ctf_dthash, (void *) (uintptr_t) type); | |
47d546f4 NA |
694 | } |
695 | ||
47d546f4 NA |
696 | ctf_dtdef_t * |
697 | ctf_dynamic_type (const ctf_file_t *fp, ctf_id_t id) | |
698 | { | |
699 | ctf_id_t idx; | |
700 | ||
676c3ecb NA |
701 | if (!(fp->ctf_flags & LCTF_RDWR)) |
702 | return NULL; | |
703 | ||
47d546f4 NA |
704 | if ((fp->ctf_flags & LCTF_CHILD) && LCTF_TYPE_ISPARENT (fp, id)) |
705 | fp = fp->ctf_parent; | |
706 | ||
707 | idx = LCTF_TYPE_TO_INDEX(fp, id); | |
708 | ||
676c3ecb | 709 | if ((unsigned long) idx <= fp->ctf_typemax) |
47d546f4 NA |
710 | return ctf_dtd_lookup (fp, id); |
711 | return NULL; | |
712 | } | |
713 | ||
24865428 | 714 | int |
47d546f4 NA |
715 | ctf_dvd_insert (ctf_file_t *fp, ctf_dvdef_t *dvd) |
716 | { | |
24865428 NA |
717 | if (ctf_dynhash_insert (fp->ctf_dvhash, dvd->dvd_name, dvd) < 0) |
718 | return -1; | |
47d546f4 | 719 | ctf_list_append (&fp->ctf_dvdefs, dvd); |
24865428 | 720 | return 0; |
47d546f4 NA |
721 | } |
722 | ||
723 | void | |
724 | ctf_dvd_delete (ctf_file_t *fp, ctf_dvdef_t *dvd) | |
725 | { | |
726 | ctf_dynhash_remove (fp->ctf_dvhash, dvd->dvd_name); | |
de07e349 | 727 | free (dvd->dvd_name); |
47d546f4 NA |
728 | |
729 | ctf_list_delete (&fp->ctf_dvdefs, dvd); | |
de07e349 | 730 | free (dvd); |
47d546f4 NA |
731 | } |
732 | ||
733 | ctf_dvdef_t * | |
734 | ctf_dvd_lookup (const ctf_file_t *fp, const char *name) | |
735 | { | |
736 | return (ctf_dvdef_t *) ctf_dynhash_lookup (fp->ctf_dvhash, name); | |
737 | } | |
738 | ||
739 | /* Discard all of the dynamic type definitions and variable definitions that | |
740 | have been added to the container since the last call to ctf_update(). We | |
741 | locate such types by scanning the dtd list and deleting elements that have | |
742 | type IDs greater than ctf_dtoldid, which is set by ctf_update(), above, and | |
743 | by scanning the variable list and deleting elements that have update IDs | |
744 | equal to the current value of the last-update snapshot count (indicating that | |
745 | they were added after the most recent call to ctf_update()). */ | |
746 | int | |
747 | ctf_discard (ctf_file_t *fp) | |
748 | { | |
749 | ctf_snapshot_id_t last_update = | |
750 | { fp->ctf_dtoldid, | |
751 | fp->ctf_snapshot_lu + 1 }; | |
752 | ||
753 | /* Update required? */ | |
754 | if (!(fp->ctf_flags & LCTF_DIRTY)) | |
755 | return 0; | |
756 | ||
757 | return (ctf_rollback (fp, last_update)); | |
758 | } | |
759 | ||
760 | ctf_snapshot_id_t | |
761 | ctf_snapshot (ctf_file_t *fp) | |
762 | { | |
763 | ctf_snapshot_id_t snapid; | |
676c3ecb | 764 | snapid.dtd_id = fp->ctf_typemax; |
47d546f4 NA |
765 | snapid.snapshot_id = fp->ctf_snapshots++; |
766 | return snapid; | |
767 | } | |
768 | ||
769 | /* Like ctf_discard(), only discards everything after a particular ID. */ | |
770 | int | |
771 | ctf_rollback (ctf_file_t *fp, ctf_snapshot_id_t id) | |
772 | { | |
773 | ctf_dtdef_t *dtd, *ntd; | |
774 | ctf_dvdef_t *dvd, *nvd; | |
775 | ||
776 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
777 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
778 | ||
47d546f4 NA |
779 | if (fp->ctf_snapshot_lu >= id.snapshot_id) |
780 | return (ctf_set_errno (fp, ECTF_OVERROLLBACK)); | |
781 | ||
782 | for (dtd = ctf_list_next (&fp->ctf_dtdefs); dtd != NULL; dtd = ntd) | |
783 | { | |
676c3ecb NA |
784 | int kind; |
785 | const char *name; | |
786 | ||
47d546f4 NA |
787 | ntd = ctf_list_next (dtd); |
788 | ||
789 | if (LCTF_TYPE_TO_INDEX (fp, dtd->dtd_type) <= id.dtd_id) | |
790 | continue; | |
791 | ||
676c3ecb | 792 | kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); |
8ffcdf18 NA |
793 | if (kind == CTF_K_FORWARD) |
794 | kind = dtd->dtd_data.ctt_type; | |
676c3ecb NA |
795 | |
796 | if (dtd->dtd_data.ctt_name | |
fe4c2d55 NA |
797 | && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL |
798 | && LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info)) | |
676c3ecb NA |
799 | { |
800 | ctf_dynhash_remove (ctf_name_table (fp, kind)->ctn_writable, | |
801 | name); | |
802 | ctf_str_remove_ref (fp, name, &dtd->dtd_data.ctt_name); | |
803 | } | |
804 | ||
8c419a91 | 805 | ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type); |
47d546f4 NA |
806 | ctf_dtd_delete (fp, dtd); |
807 | } | |
808 | ||
809 | for (dvd = ctf_list_next (&fp->ctf_dvdefs); dvd != NULL; dvd = nvd) | |
810 | { | |
811 | nvd = ctf_list_next (dvd); | |
812 | ||
813 | if (dvd->dvd_snapshots <= id.snapshot_id) | |
814 | continue; | |
815 | ||
816 | ctf_dvd_delete (fp, dvd); | |
817 | } | |
818 | ||
676c3ecb | 819 | fp->ctf_typemax = id.dtd_id; |
47d546f4 NA |
820 | fp->ctf_snapshots = id.snapshot_id; |
821 | ||
822 | if (fp->ctf_snapshots == fp->ctf_snapshot_lu) | |
823 | fp->ctf_flags &= ~LCTF_DIRTY; | |
824 | ||
825 | return 0; | |
826 | } | |
827 | ||
828 | static ctf_id_t | |
676c3ecb | 829 | ctf_add_generic (ctf_file_t *fp, uint32_t flag, const char *name, int kind, |
47d546f4 NA |
830 | ctf_dtdef_t **rp) |
831 | { | |
832 | ctf_dtdef_t *dtd; | |
833 | ctf_id_t type; | |
47d546f4 NA |
834 | |
835 | if (flag != CTF_ADD_NONROOT && flag != CTF_ADD_ROOT) | |
836 | return (ctf_set_errno (fp, EINVAL)); | |
837 | ||
838 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
839 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
840 | ||
676c3ecb | 841 | if (LCTF_INDEX_TO_TYPE (fp, fp->ctf_typemax, 1) >= CTF_MAX_TYPE) |
47d546f4 NA |
842 | return (ctf_set_errno (fp, ECTF_FULL)); |
843 | ||
676c3ecb | 844 | if (LCTF_INDEX_TO_TYPE (fp, fp->ctf_typemax, 1) == (CTF_MAX_PTYPE - 1)) |
47d546f4 NA |
845 | return (ctf_set_errno (fp, ECTF_FULL)); |
846 | ||
676c3ecb NA |
847 | /* Make sure ptrtab always grows to be big enough for all types. */ |
848 | if (ctf_grow_ptrtab (fp) < 0) | |
849 | return CTF_ERR; /* errno is set for us. */ | |
850 | ||
de07e349 | 851 | if ((dtd = malloc (sizeof (ctf_dtdef_t))) == NULL) |
47d546f4 NA |
852 | return (ctf_set_errno (fp, EAGAIN)); |
853 | ||
676c3ecb | 854 | type = ++fp->ctf_typemax; |
47d546f4 NA |
855 | type = LCTF_INDEX_TO_TYPE (fp, type, (fp->ctf_flags & LCTF_CHILD)); |
856 | ||
857 | memset (dtd, 0, sizeof (ctf_dtdef_t)); | |
676c3ecb | 858 | dtd->dtd_data.ctt_name = ctf_str_add_ref (fp, name, &dtd->dtd_data.ctt_name); |
47d546f4 NA |
859 | dtd->dtd_type = type; |
860 | ||
676c3ecb NA |
861 | if (dtd->dtd_data.ctt_name == 0 && name != NULL && name[0] != '\0') |
862 | { | |
de07e349 | 863 | free (dtd); |
676c3ecb NA |
864 | return (ctf_set_errno (fp, EAGAIN)); |
865 | } | |
866 | ||
fe4c2d55 | 867 | if (ctf_dtd_insert (fp, dtd, flag, kind) < 0) |
24865428 | 868 | { |
de07e349 | 869 | free (dtd); |
24865428 NA |
870 | return CTF_ERR; /* errno is set for us. */ |
871 | } | |
47d546f4 NA |
872 | fp->ctf_flags |= LCTF_DIRTY; |
873 | ||
874 | *rp = dtd; | |
875 | return type; | |
876 | } | |
877 | ||
878 | /* When encoding integer sizes, we want to convert a byte count in the range | |
879 | 1-8 to the closest power of 2 (e.g. 3->4, 5->8, etc). The clp2() function | |
880 | is a clever implementation from "Hacker's Delight" by Henry Warren, Jr. */ | |
881 | static size_t | |
882 | clp2 (size_t x) | |
883 | { | |
884 | x--; | |
885 | ||
886 | x |= (x >> 1); | |
887 | x |= (x >> 2); | |
888 | x |= (x >> 4); | |
889 | x |= (x >> 8); | |
890 | x |= (x >> 16); | |
891 | ||
892 | return (x + 1); | |
893 | } | |
894 | ||
0f0c11f7 | 895 | ctf_id_t |
47d546f4 NA |
896 | ctf_add_encoded (ctf_file_t *fp, uint32_t flag, |
897 | const char *name, const ctf_encoding_t *ep, uint32_t kind) | |
898 | { | |
899 | ctf_dtdef_t *dtd; | |
900 | ctf_id_t type; | |
901 | ||
902 | if (ep == NULL) | |
903 | return (ctf_set_errno (fp, EINVAL)); | |
904 | ||
676c3ecb | 905 | if ((type = ctf_add_generic (fp, flag, name, kind, &dtd)) == CTF_ERR) |
47d546f4 NA |
906 | return CTF_ERR; /* errno is set for us. */ |
907 | ||
908 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, flag, 0); | |
76fad999 TT |
909 | dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, CHAR_BIT) |
910 | / CHAR_BIT); | |
47d546f4 NA |
911 | dtd->dtd_u.dtu_enc = *ep; |
912 | ||
913 | return type; | |
914 | } | |
915 | ||
0f0c11f7 | 916 | ctf_id_t |
47d546f4 NA |
917 | ctf_add_reftype (ctf_file_t *fp, uint32_t flag, ctf_id_t ref, uint32_t kind) |
918 | { | |
919 | ctf_dtdef_t *dtd; | |
920 | ctf_id_t type; | |
921 | ctf_file_t *tmp = fp; | |
676c3ecb | 922 | int child = fp->ctf_flags & LCTF_CHILD; |
47d546f4 | 923 | |
a0486bac | 924 | if (ref == CTF_ERR || ref > CTF_MAX_TYPE) |
47d546f4 NA |
925 | return (ctf_set_errno (fp, EINVAL)); |
926 | ||
2361f1c8 | 927 | if (ref != 0 && ctf_lookup_by_id (&tmp, ref) == NULL) |
47d546f4 NA |
928 | return CTF_ERR; /* errno is set for us. */ |
929 | ||
676c3ecb | 930 | if ((type = ctf_add_generic (fp, flag, NULL, kind, &dtd)) == CTF_ERR) |
47d546f4 NA |
931 | return CTF_ERR; /* errno is set for us. */ |
932 | ||
933 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, flag, 0); | |
934 | dtd->dtd_data.ctt_type = (uint32_t) ref; | |
935 | ||
676c3ecb NA |
936 | if (kind != CTF_K_POINTER) |
937 | return type; | |
938 | ||
939 | /* If we are adding a pointer, update the ptrtab, both the directly pointed-to | |
940 | type and (if an anonymous typedef node is being pointed at) the type that | |
941 | points at too. Note that ctf_typemax is at this point one higher than we | |
942 | want to check against, because it's just been incremented for the addition | |
943 | of this type. */ | |
944 | ||
945 | uint32_t type_idx = LCTF_TYPE_TO_INDEX (fp, type); | |
946 | uint32_t ref_idx = LCTF_TYPE_TO_INDEX (fp, ref); | |
947 | ||
948 | if (LCTF_TYPE_ISCHILD (fp, ref) == child | |
949 | && ref_idx < fp->ctf_typemax) | |
950 | { | |
951 | fp->ctf_ptrtab[ref_idx] = type_idx; | |
952 | ||
953 | ctf_id_t refref_idx = LCTF_TYPE_TO_INDEX (fp, dtd->dtd_data.ctt_type); | |
954 | ||
955 | if (tmp == fp | |
956 | && (LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info) == CTF_K_TYPEDEF) | |
957 | && strcmp (ctf_strptr (fp, dtd->dtd_data.ctt_name), "") == 0 | |
958 | && refref_idx < fp->ctf_typemax) | |
959 | fp->ctf_ptrtab[refref_idx] = type_idx; | |
960 | } | |
961 | ||
47d546f4 NA |
962 | return type; |
963 | } | |
964 | ||
965 | ctf_id_t | |
966 | ctf_add_slice (ctf_file_t *fp, uint32_t flag, ctf_id_t ref, | |
967 | const ctf_encoding_t *ep) | |
968 | { | |
969 | ctf_dtdef_t *dtd; | |
502e838e | 970 | ctf_id_t resolved_ref = ref; |
47d546f4 NA |
971 | ctf_id_t type; |
972 | int kind; | |
973 | const ctf_type_t *tp; | |
974 | ctf_file_t *tmp = fp; | |
975 | ||
976 | if (ep == NULL) | |
977 | return (ctf_set_errno (fp, EINVAL)); | |
978 | ||
979 | if ((ep->cte_bits > 255) || (ep->cte_offset > 255)) | |
980 | return (ctf_set_errno (fp, ECTF_SLICEOVERFLOW)); | |
981 | ||
a0486bac | 982 | if (ref == CTF_ERR || ref > CTF_MAX_TYPE) |
47d546f4 NA |
983 | return (ctf_set_errno (fp, EINVAL)); |
984 | ||
2361f1c8 | 985 | if (ref != 0 && ((tp = ctf_lookup_by_id (&tmp, ref)) == NULL)) |
47d546f4 NA |
986 | return CTF_ERR; /* errno is set for us. */ |
987 | ||
502e838e NA |
988 | /* Make sure we ultimately point to an integral type. We also allow slices to |
989 | point to the unimplemented type, for now, because the compiler can emit | |
990 | such slices, though they're not very much use. */ | |
991 | ||
992 | resolved_ref = ctf_type_resolve_unsliced (tmp, ref); | |
993 | kind = ctf_type_kind_unsliced (tmp, resolved_ref); | |
994 | ||
47d546f4 | 995 | if ((kind != CTF_K_INTEGER) && (kind != CTF_K_FLOAT) && |
2361f1c8 NA |
996 | (kind != CTF_K_ENUM) |
997 | && (ref != 0)) | |
47d546f4 NA |
998 | return (ctf_set_errno (fp, ECTF_NOTINTFP)); |
999 | ||
676c3ecb | 1000 | if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_SLICE, &dtd)) == CTF_ERR) |
47d546f4 NA |
1001 | return CTF_ERR; /* errno is set for us. */ |
1002 | ||
1003 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_SLICE, flag, 0); | |
76fad999 TT |
1004 | dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, CHAR_BIT) |
1005 | / CHAR_BIT); | |
9943fa3a | 1006 | dtd->dtd_u.dtu_slice.cts_type = (uint32_t) ref; |
47d546f4 NA |
1007 | dtd->dtd_u.dtu_slice.cts_bits = ep->cte_bits; |
1008 | dtd->dtd_u.dtu_slice.cts_offset = ep->cte_offset; | |
1009 | ||
1010 | return type; | |
1011 | } | |
1012 | ||
1013 | ctf_id_t | |
1014 | ctf_add_integer (ctf_file_t *fp, uint32_t flag, | |
1015 | const char *name, const ctf_encoding_t *ep) | |
1016 | { | |
1017 | return (ctf_add_encoded (fp, flag, name, ep, CTF_K_INTEGER)); | |
1018 | } | |
1019 | ||
1020 | ctf_id_t | |
1021 | ctf_add_float (ctf_file_t *fp, uint32_t flag, | |
1022 | const char *name, const ctf_encoding_t *ep) | |
1023 | { | |
1024 | return (ctf_add_encoded (fp, flag, name, ep, CTF_K_FLOAT)); | |
1025 | } | |
1026 | ||
1027 | ctf_id_t | |
1028 | ctf_add_pointer (ctf_file_t *fp, uint32_t flag, ctf_id_t ref) | |
1029 | { | |
1030 | return (ctf_add_reftype (fp, flag, ref, CTF_K_POINTER)); | |
1031 | } | |
1032 | ||
1033 | ctf_id_t | |
1034 | ctf_add_array (ctf_file_t *fp, uint32_t flag, const ctf_arinfo_t *arp) | |
1035 | { | |
1036 | ctf_dtdef_t *dtd; | |
1037 | ctf_id_t type; | |
1038 | ctf_file_t *tmp = fp; | |
1039 | ||
1040 | if (arp == NULL) | |
1041 | return (ctf_set_errno (fp, EINVAL)); | |
1042 | ||
2361f1c8 NA |
1043 | if (arp->ctr_contents != 0 |
1044 | && ctf_lookup_by_id (&tmp, arp->ctr_contents) == NULL) | |
47d546f4 NA |
1045 | return CTF_ERR; /* errno is set for us. */ |
1046 | ||
1047 | tmp = fp; | |
1048 | if (ctf_lookup_by_id (&tmp, arp->ctr_index) == NULL) | |
1049 | return CTF_ERR; /* errno is set for us. */ | |
1050 | ||
676c3ecb | 1051 | if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_ARRAY, &dtd)) == CTF_ERR) |
47d546f4 NA |
1052 | return CTF_ERR; /* errno is set for us. */ |
1053 | ||
1054 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_ARRAY, flag, 0); | |
1055 | dtd->dtd_data.ctt_size = 0; | |
1056 | dtd->dtd_u.dtu_arr = *arp; | |
1057 | ||
1058 | return type; | |
1059 | } | |
1060 | ||
1061 | int | |
1062 | ctf_set_array (ctf_file_t *fp, ctf_id_t type, const ctf_arinfo_t *arp) | |
1063 | { | |
1064 | ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, type); | |
1065 | ||
1066 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
1067 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
1068 | ||
1069 | if (dtd == NULL | |
1070 | || LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info) != CTF_K_ARRAY) | |
1071 | return (ctf_set_errno (fp, ECTF_BADID)); | |
1072 | ||
1073 | fp->ctf_flags |= LCTF_DIRTY; | |
1074 | dtd->dtd_u.dtu_arr = *arp; | |
1075 | ||
1076 | return 0; | |
1077 | } | |
1078 | ||
1079 | ctf_id_t | |
1080 | ctf_add_function (ctf_file_t *fp, uint32_t flag, | |
1081 | const ctf_funcinfo_t *ctc, const ctf_id_t *argv) | |
1082 | { | |
1083 | ctf_dtdef_t *dtd; | |
1084 | ctf_id_t type; | |
1085 | uint32_t vlen; | |
afd78bd6 | 1086 | uint32_t *vdat = NULL; |
47d546f4 NA |
1087 | ctf_file_t *tmp = fp; |
1088 | size_t i; | |
1089 | ||
1090 | if (ctc == NULL || (ctc->ctc_flags & ~CTF_FUNC_VARARG) != 0 | |
1091 | || (ctc->ctc_argc != 0 && argv == NULL)) | |
1092 | return (ctf_set_errno (fp, EINVAL)); | |
1093 | ||
1094 | vlen = ctc->ctc_argc; | |
1095 | if (ctc->ctc_flags & CTF_FUNC_VARARG) | |
1096 | vlen++; /* Add trailing zero to indicate varargs (see below). */ | |
1097 | ||
2361f1c8 NA |
1098 | if (ctc->ctc_return != 0 |
1099 | && ctf_lookup_by_id (&tmp, ctc->ctc_return) == NULL) | |
47d546f4 NA |
1100 | return CTF_ERR; /* errno is set for us. */ |
1101 | ||
47d546f4 NA |
1102 | if (vlen > CTF_MAX_VLEN) |
1103 | return (ctf_set_errno (fp, EOVERFLOW)); | |
1104 | ||
de07e349 | 1105 | if (vlen != 0 && (vdat = malloc (sizeof (ctf_id_t) * vlen)) == NULL) |
47d546f4 NA |
1106 | return (ctf_set_errno (fp, EAGAIN)); |
1107 | ||
afd78bd6 NA |
1108 | for (i = 0; i < ctc->ctc_argc; i++) |
1109 | { | |
1110 | tmp = fp; | |
1111 | if (argv[i] != 0 && ctf_lookup_by_id (&tmp, argv[i]) == NULL) | |
1112 | { | |
1113 | free (vdat); | |
1114 | return CTF_ERR; /* errno is set for us. */ | |
1115 | } | |
1116 | vdat[i] = (uint32_t) argv[i]; | |
1117 | } | |
1118 | ||
676c3ecb NA |
1119 | if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_FUNCTION, |
1120 | &dtd)) == CTF_ERR) | |
47d546f4 | 1121 | { |
de07e349 | 1122 | free (vdat); |
47d546f4 NA |
1123 | return CTF_ERR; /* errno is set for us. */ |
1124 | } | |
1125 | ||
1126 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_FUNCTION, flag, vlen); | |
1127 | dtd->dtd_data.ctt_type = (uint32_t) ctc->ctc_return; | |
1128 | ||
47d546f4 NA |
1129 | if (ctc->ctc_flags & CTF_FUNC_VARARG) |
1130 | vdat[vlen - 1] = 0; /* Add trailing zero to indicate varargs. */ | |
1131 | dtd->dtd_u.dtu_argv = vdat; | |
1132 | ||
1133 | return type; | |
1134 | } | |
1135 | ||
1136 | ctf_id_t | |
1137 | ctf_add_struct_sized (ctf_file_t *fp, uint32_t flag, const char *name, | |
1138 | size_t size) | |
1139 | { | |
47d546f4 NA |
1140 | ctf_dtdef_t *dtd; |
1141 | ctf_id_t type = 0; | |
1142 | ||
fe4c2d55 | 1143 | /* Promote root-visible forwards to structs. */ |
47d546f4 | 1144 | if (name != NULL) |
676c3ecb | 1145 | type = ctf_lookup_by_rawname (fp, CTF_K_STRUCT, name); |
47d546f4 NA |
1146 | |
1147 | if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD) | |
1148 | dtd = ctf_dtd_lookup (fp, type); | |
676c3ecb NA |
1149 | else if ((type = ctf_add_generic (fp, flag, name, CTF_K_STRUCT, |
1150 | &dtd)) == CTF_ERR) | |
47d546f4 NA |
1151 | return CTF_ERR; /* errno is set for us. */ |
1152 | ||
1153 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_STRUCT, flag, 0); | |
1154 | ||
1155 | if (size > CTF_MAX_SIZE) | |
1156 | { | |
1157 | dtd->dtd_data.ctt_size = CTF_LSIZE_SENT; | |
1158 | dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI (size); | |
1159 | dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO (size); | |
1160 | } | |
1161 | else | |
1162 | dtd->dtd_data.ctt_size = (uint32_t) size; | |
1163 | ||
1164 | return type; | |
1165 | } | |
1166 | ||
1167 | ctf_id_t | |
1168 | ctf_add_struct (ctf_file_t *fp, uint32_t flag, const char *name) | |
1169 | { | |
1170 | return (ctf_add_struct_sized (fp, flag, name, 0)); | |
1171 | } | |
1172 | ||
1173 | ctf_id_t | |
1174 | ctf_add_union_sized (ctf_file_t *fp, uint32_t flag, const char *name, | |
1175 | size_t size) | |
1176 | { | |
47d546f4 NA |
1177 | ctf_dtdef_t *dtd; |
1178 | ctf_id_t type = 0; | |
1179 | ||
fe4c2d55 | 1180 | /* Promote root-visible forwards to unions. */ |
47d546f4 | 1181 | if (name != NULL) |
676c3ecb | 1182 | type = ctf_lookup_by_rawname (fp, CTF_K_UNION, name); |
47d546f4 NA |
1183 | |
1184 | if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD) | |
1185 | dtd = ctf_dtd_lookup (fp, type); | |
676c3ecb NA |
1186 | else if ((type = ctf_add_generic (fp, flag, name, CTF_K_UNION, |
1187 | &dtd)) == CTF_ERR) | |
47d546f4 NA |
1188 | return CTF_ERR; /* errno is set for us */ |
1189 | ||
1190 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_UNION, flag, 0); | |
1191 | ||
1192 | if (size > CTF_MAX_SIZE) | |
1193 | { | |
1194 | dtd->dtd_data.ctt_size = CTF_LSIZE_SENT; | |
1195 | dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI (size); | |
1196 | dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO (size); | |
1197 | } | |
1198 | else | |
1199 | dtd->dtd_data.ctt_size = (uint32_t) size; | |
1200 | ||
1201 | return type; | |
1202 | } | |
1203 | ||
1204 | ctf_id_t | |
1205 | ctf_add_union (ctf_file_t *fp, uint32_t flag, const char *name) | |
1206 | { | |
1207 | return (ctf_add_union_sized (fp, flag, name, 0)); | |
1208 | } | |
1209 | ||
1210 | ctf_id_t | |
1211 | ctf_add_enum (ctf_file_t *fp, uint32_t flag, const char *name) | |
1212 | { | |
47d546f4 NA |
1213 | ctf_dtdef_t *dtd; |
1214 | ctf_id_t type = 0; | |
1215 | ||
fe4c2d55 | 1216 | /* Promote root-visible forwards to enums. */ |
47d546f4 | 1217 | if (name != NULL) |
676c3ecb | 1218 | type = ctf_lookup_by_rawname (fp, CTF_K_ENUM, name); |
47d546f4 NA |
1219 | |
1220 | if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD) | |
1221 | dtd = ctf_dtd_lookup (fp, type); | |
676c3ecb NA |
1222 | else if ((type = ctf_add_generic (fp, flag, name, CTF_K_ENUM, |
1223 | &dtd)) == CTF_ERR) | |
47d546f4 NA |
1224 | return CTF_ERR; /* errno is set for us. */ |
1225 | ||
1226 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_ENUM, flag, 0); | |
1227 | dtd->dtd_data.ctt_size = fp->ctf_dmodel->ctd_int; | |
1228 | ||
1229 | return type; | |
1230 | } | |
1231 | ||
1232 | ctf_id_t | |
1233 | ctf_add_enum_encoded (ctf_file_t *fp, uint32_t flag, const char *name, | |
1234 | const ctf_encoding_t *ep) | |
1235 | { | |
47d546f4 NA |
1236 | ctf_id_t type = 0; |
1237 | ||
1238 | /* First, create the enum if need be, using most of the same machinery as | |
1239 | ctf_add_enum(), to ensure that we do not allow things past that are not | |
1240 | enums or forwards to them. (This includes other slices: you cannot slice a | |
1241 | slice, which would be a useless thing to do anyway.) */ | |
1242 | ||
1243 | if (name != NULL) | |
676c3ecb | 1244 | type = ctf_lookup_by_rawname (fp, CTF_K_ENUM, name); |
47d546f4 NA |
1245 | |
1246 | if (type != 0) | |
1247 | { | |
1248 | if ((ctf_type_kind (fp, type) != CTF_K_FORWARD) && | |
1249 | (ctf_type_kind_unsliced (fp, type) != CTF_K_ENUM)) | |
1250 | return (ctf_set_errno (fp, ECTF_NOTINTFP)); | |
1251 | } | |
1252 | else if ((type = ctf_add_enum (fp, flag, name)) == CTF_ERR) | |
1253 | return CTF_ERR; /* errno is set for us. */ | |
1254 | ||
1255 | /* Now attach a suitable slice to it. */ | |
1256 | ||
1257 | return ctf_add_slice (fp, flag, type, ep); | |
1258 | } | |
1259 | ||
1260 | ctf_id_t | |
1261 | ctf_add_forward (ctf_file_t *fp, uint32_t flag, const char *name, | |
1262 | uint32_t kind) | |
1263 | { | |
47d546f4 NA |
1264 | ctf_dtdef_t *dtd; |
1265 | ctf_id_t type = 0; | |
1266 | ||
9850ce4d | 1267 | if (!ctf_forwardable_kind (kind)) |
676c3ecb | 1268 | return (ctf_set_errno (fp, ECTF_NOTSUE)); |
47d546f4 NA |
1269 | |
1270 | /* If the type is already defined or exists as a forward tag, just | |
1271 | return the ctf_id_t of the existing definition. */ | |
1272 | ||
1273 | if (name != NULL) | |
676c3ecb | 1274 | type = ctf_lookup_by_rawname (fp, kind, name); |
47d546f4 | 1275 | |
6bbf9da8 NA |
1276 | if (type) |
1277 | return type; | |
1278 | ||
8ffcdf18 | 1279 | if ((type = ctf_add_generic (fp, flag, name, kind, &dtd)) == CTF_ERR) |
47d546f4 NA |
1280 | return CTF_ERR; /* errno is set for us. */ |
1281 | ||
1282 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_FORWARD, flag, 0); | |
1283 | dtd->dtd_data.ctt_type = kind; | |
1284 | ||
1285 | return type; | |
1286 | } | |
1287 | ||
1288 | ctf_id_t | |
1289 | ctf_add_typedef (ctf_file_t *fp, uint32_t flag, const char *name, | |
1290 | ctf_id_t ref) | |
1291 | { | |
1292 | ctf_dtdef_t *dtd; | |
1293 | ctf_id_t type; | |
1294 | ctf_file_t *tmp = fp; | |
1295 | ||
a0486bac | 1296 | if (ref == CTF_ERR || ref > CTF_MAX_TYPE) |
47d546f4 NA |
1297 | return (ctf_set_errno (fp, EINVAL)); |
1298 | ||
2361f1c8 | 1299 | if (ref != 0 && ctf_lookup_by_id (&tmp, ref) == NULL) |
47d546f4 NA |
1300 | return CTF_ERR; /* errno is set for us. */ |
1301 | ||
676c3ecb NA |
1302 | if ((type = ctf_add_generic (fp, flag, name, CTF_K_TYPEDEF, |
1303 | &dtd)) == CTF_ERR) | |
47d546f4 NA |
1304 | return CTF_ERR; /* errno is set for us. */ |
1305 | ||
1306 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_TYPEDEF, flag, 0); | |
1307 | dtd->dtd_data.ctt_type = (uint32_t) ref; | |
1308 | ||
1309 | return type; | |
1310 | } | |
1311 | ||
1312 | ctf_id_t | |
1313 | ctf_add_volatile (ctf_file_t *fp, uint32_t flag, ctf_id_t ref) | |
1314 | { | |
1315 | return (ctf_add_reftype (fp, flag, ref, CTF_K_VOLATILE)); | |
1316 | } | |
1317 | ||
1318 | ctf_id_t | |
1319 | ctf_add_const (ctf_file_t *fp, uint32_t flag, ctf_id_t ref) | |
1320 | { | |
1321 | return (ctf_add_reftype (fp, flag, ref, CTF_K_CONST)); | |
1322 | } | |
1323 | ||
1324 | ctf_id_t | |
1325 | ctf_add_restrict (ctf_file_t *fp, uint32_t flag, ctf_id_t ref) | |
1326 | { | |
1327 | return (ctf_add_reftype (fp, flag, ref, CTF_K_RESTRICT)); | |
1328 | } | |
1329 | ||
1330 | int | |
1331 | ctf_add_enumerator (ctf_file_t *fp, ctf_id_t enid, const char *name, | |
1332 | int value) | |
1333 | { | |
1334 | ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, enid); | |
1335 | ctf_dmdef_t *dmd; | |
1336 | ||
1337 | uint32_t kind, vlen, root; | |
1338 | char *s; | |
1339 | ||
1340 | if (name == NULL) | |
1341 | return (ctf_set_errno (fp, EINVAL)); | |
1342 | ||
1343 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
1344 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
1345 | ||
1346 | if (dtd == NULL) | |
1347 | return (ctf_set_errno (fp, ECTF_BADID)); | |
1348 | ||
1349 | kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); | |
1350 | root = LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info); | |
1351 | vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info); | |
1352 | ||
1353 | if (kind != CTF_K_ENUM) | |
1354 | return (ctf_set_errno (fp, ECTF_NOTENUM)); | |
1355 | ||
1356 | if (vlen == CTF_MAX_VLEN) | |
1357 | return (ctf_set_errno (fp, ECTF_DTFULL)); | |
1358 | ||
1359 | for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
1360 | dmd != NULL; dmd = ctf_list_next (dmd)) | |
1361 | { | |
1362 | if (strcmp (dmd->dmd_name, name) == 0) | |
1363 | return (ctf_set_errno (fp, ECTF_DUPLICATE)); | |
1364 | } | |
1365 | ||
de07e349 | 1366 | if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL) |
47d546f4 NA |
1367 | return (ctf_set_errno (fp, EAGAIN)); |
1368 | ||
de07e349 | 1369 | if ((s = strdup (name)) == NULL) |
47d546f4 | 1370 | { |
de07e349 | 1371 | free (dmd); |
47d546f4 NA |
1372 | return (ctf_set_errno (fp, EAGAIN)); |
1373 | } | |
1374 | ||
1375 | dmd->dmd_name = s; | |
1376 | dmd->dmd_type = CTF_ERR; | |
1377 | dmd->dmd_offset = 0; | |
1378 | dmd->dmd_value = value; | |
1379 | ||
1380 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, root, vlen + 1); | |
1381 | ctf_list_append (&dtd->dtd_u.dtu_members, dmd); | |
1382 | ||
47d546f4 NA |
1383 | fp->ctf_flags |= LCTF_DIRTY; |
1384 | ||
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | int | |
1389 | ctf_add_member_offset (ctf_file_t *fp, ctf_id_t souid, const char *name, | |
1390 | ctf_id_t type, unsigned long bit_offset) | |
1391 | { | |
1392 | ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, souid); | |
1393 | ctf_dmdef_t *dmd; | |
1394 | ||
1395 | ssize_t msize, malign, ssize; | |
1396 | uint32_t kind, vlen, root; | |
1397 | char *s = NULL; | |
1398 | ||
1399 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
1400 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
1401 | ||
1402 | if (dtd == NULL) | |
1403 | return (ctf_set_errno (fp, ECTF_BADID)); | |
1404 | ||
ab769488 NA |
1405 | if (name != NULL && name[0] == '\0') |
1406 | name = NULL; | |
1407 | ||
47d546f4 NA |
1408 | kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); |
1409 | root = LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info); | |
1410 | vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info); | |
1411 | ||
1412 | if (kind != CTF_K_STRUCT && kind != CTF_K_UNION) | |
1413 | return (ctf_set_errno (fp, ECTF_NOTSOU)); | |
1414 | ||
1415 | if (vlen == CTF_MAX_VLEN) | |
1416 | return (ctf_set_errno (fp, ECTF_DTFULL)); | |
1417 | ||
1418 | if (name != NULL) | |
1419 | { | |
1420 | for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members); | |
1421 | dmd != NULL; dmd = ctf_list_next (dmd)) | |
1422 | { | |
1423 | if (dmd->dmd_name != NULL && strcmp (dmd->dmd_name, name) == 0) | |
1424 | return (ctf_set_errno (fp, ECTF_DUPLICATE)); | |
1425 | } | |
1426 | } | |
1427 | ||
a0486bac JM |
1428 | if ((msize = ctf_type_size (fp, type)) < 0 || |
1429 | (malign = ctf_type_align (fp, type)) < 0) | |
2361f1c8 NA |
1430 | { |
1431 | /* The unimplemented type, and any type that resolves to it, has no size | |
1432 | and no alignment: it can correspond to any number of compiler-inserted | |
1433 | types. */ | |
1434 | ||
1435 | if (ctf_errno (fp) == ECTF_NONREPRESENTABLE) | |
1436 | { | |
1437 | msize = 0; | |
1438 | malign = 0; | |
1439 | ctf_set_errno (fp, 0); | |
1440 | } | |
1441 | else | |
1442 | return -1; /* errno is set for us. */ | |
1443 | } | |
47d546f4 | 1444 | |
de07e349 | 1445 | if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL) |
47d546f4 NA |
1446 | return (ctf_set_errno (fp, EAGAIN)); |
1447 | ||
de07e349 | 1448 | if (name != NULL && (s = strdup (name)) == NULL) |
47d546f4 | 1449 | { |
de07e349 | 1450 | free (dmd); |
47d546f4 NA |
1451 | return (ctf_set_errno (fp, EAGAIN)); |
1452 | } | |
1453 | ||
1454 | dmd->dmd_name = s; | |
1455 | dmd->dmd_type = type; | |
1456 | dmd->dmd_value = -1; | |
1457 | ||
1458 | if (kind == CTF_K_STRUCT && vlen != 0) | |
1459 | { | |
1460 | if (bit_offset == (unsigned long) - 1) | |
1461 | { | |
1462 | /* Natural alignment. */ | |
1463 | ||
1464 | ctf_dmdef_t *lmd = ctf_list_prev (&dtd->dtd_u.dtu_members); | |
1465 | ctf_id_t ltype = ctf_type_resolve (fp, lmd->dmd_type); | |
1466 | size_t off = lmd->dmd_offset; | |
1467 | ||
1468 | ctf_encoding_t linfo; | |
1469 | ssize_t lsize; | |
1470 | ||
2361f1c8 NA |
1471 | /* Propagate any error from ctf_type_resolve. If the last member was |
1472 | of unimplemented type, this may be -ECTF_NONREPRESENTABLE: we | |
1473 | cannot insert right after such a member without explicit offset | |
1474 | specification, because its alignment and size is not known. */ | |
1475 | if (ltype == CTF_ERR) | |
1476 | { | |
1477 | free (dmd); | |
1478 | return -1; /* errno is set for us. */ | |
1479 | } | |
1480 | ||
a0486bac | 1481 | if (ctf_type_encoding (fp, ltype, &linfo) == 0) |
47d546f4 | 1482 | off += linfo.cte_bits; |
a0486bac | 1483 | else if ((lsize = ctf_type_size (fp, ltype)) > 0) |
76fad999 | 1484 | off += lsize * CHAR_BIT; |
47d546f4 NA |
1485 | |
1486 | /* Round up the offset of the end of the last member to | |
1487 | the next byte boundary, convert 'off' to bytes, and | |
1488 | then round it up again to the next multiple of the | |
1489 | alignment required by the new member. Finally, | |
1490 | convert back to bits and store the result in | |
1491 | dmd_offset. Technically we could do more efficient | |
1492 | packing if the new member is a bit-field, but we're | |
1493 | the "compiler" and ANSI says we can do as we choose. */ | |
1494 | ||
76fad999 | 1495 | off = roundup (off, CHAR_BIT) / CHAR_BIT; |
47d546f4 | 1496 | off = roundup (off, MAX (malign, 1)); |
76fad999 | 1497 | dmd->dmd_offset = off * CHAR_BIT; |
47d546f4 NA |
1498 | ssize = off + msize; |
1499 | } | |
1500 | else | |
1501 | { | |
1502 | /* Specified offset in bits. */ | |
1503 | ||
1504 | dmd->dmd_offset = bit_offset; | |
1505 | ssize = ctf_get_ctt_size (fp, &dtd->dtd_data, NULL, NULL); | |
76fad999 | 1506 | ssize = MAX (ssize, ((signed) bit_offset / CHAR_BIT) + msize); |
47d546f4 NA |
1507 | } |
1508 | } | |
1509 | else | |
1510 | { | |
1511 | dmd->dmd_offset = 0; | |
1512 | ssize = ctf_get_ctt_size (fp, &dtd->dtd_data, NULL, NULL); | |
1513 | ssize = MAX (ssize, msize); | |
1514 | } | |
1515 | ||
a0486bac | 1516 | if ((size_t) ssize > CTF_MAX_SIZE) |
47d546f4 NA |
1517 | { |
1518 | dtd->dtd_data.ctt_size = CTF_LSIZE_SENT; | |
1519 | dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI (ssize); | |
1520 | dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO (ssize); | |
1521 | } | |
1522 | else | |
1523 | dtd->dtd_data.ctt_size = (uint32_t) ssize; | |
1524 | ||
1525 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, root, vlen + 1); | |
1526 | ctf_list_append (&dtd->dtd_u.dtu_members, dmd); | |
1527 | ||
47d546f4 NA |
1528 | fp->ctf_flags |= LCTF_DIRTY; |
1529 | return 0; | |
1530 | } | |
1531 | ||
1532 | int | |
1533 | ctf_add_member_encoded (ctf_file_t *fp, ctf_id_t souid, const char *name, | |
1534 | ctf_id_t type, unsigned long bit_offset, | |
1535 | const ctf_encoding_t encoding) | |
1536 | { | |
1537 | ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, type); | |
1538 | int kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info); | |
1539 | int otype = type; | |
1540 | ||
1541 | if ((kind != CTF_K_INTEGER) && (kind != CTF_K_FLOAT) && (kind != CTF_K_ENUM)) | |
1542 | return (ctf_set_errno (fp, ECTF_NOTINTFP)); | |
1543 | ||
1544 | if ((type = ctf_add_slice (fp, CTF_ADD_NONROOT, otype, &encoding)) == CTF_ERR) | |
a0486bac | 1545 | return -1; /* errno is set for us. */ |
47d546f4 NA |
1546 | |
1547 | return ctf_add_member_offset (fp, souid, name, type, bit_offset); | |
1548 | } | |
1549 | ||
1550 | int | |
1551 | ctf_add_member (ctf_file_t *fp, ctf_id_t souid, const char *name, | |
1552 | ctf_id_t type) | |
1553 | { | |
1554 | return ctf_add_member_offset (fp, souid, name, type, (unsigned long) - 1); | |
1555 | } | |
1556 | ||
1557 | int | |
1558 | ctf_add_variable (ctf_file_t *fp, const char *name, ctf_id_t ref) | |
1559 | { | |
1560 | ctf_dvdef_t *dvd; | |
1561 | ctf_file_t *tmp = fp; | |
1562 | ||
1563 | if (!(fp->ctf_flags & LCTF_RDWR)) | |
1564 | return (ctf_set_errno (fp, ECTF_RDONLY)); | |
1565 | ||
1566 | if (ctf_dvd_lookup (fp, name) != NULL) | |
1567 | return (ctf_set_errno (fp, ECTF_DUPLICATE)); | |
1568 | ||
1569 | if (ctf_lookup_by_id (&tmp, ref) == NULL) | |
a0486bac | 1570 | return -1; /* errno is set for us. */ |
47d546f4 | 1571 | |
791915db NA |
1572 | /* Make sure this type is representable. */ |
1573 | if ((ctf_type_resolve (fp, ref) == CTF_ERR) | |
1574 | && (ctf_errno (fp) == ECTF_NONREPRESENTABLE)) | |
1575 | return -1; | |
1576 | ||
de07e349 | 1577 | if ((dvd = malloc (sizeof (ctf_dvdef_t))) == NULL) |
47d546f4 NA |
1578 | return (ctf_set_errno (fp, EAGAIN)); |
1579 | ||
de07e349 | 1580 | if (name != NULL && (dvd->dvd_name = strdup (name)) == NULL) |
47d546f4 | 1581 | { |
de07e349 | 1582 | free (dvd); |
47d546f4 NA |
1583 | return (ctf_set_errno (fp, EAGAIN)); |
1584 | } | |
1585 | dvd->dvd_type = ref; | |
1586 | dvd->dvd_snapshots = fp->ctf_snapshots; | |
1587 | ||
24865428 NA |
1588 | if (ctf_dvd_insert (fp, dvd) < 0) |
1589 | { | |
de07e349 NA |
1590 | free (dvd->dvd_name); |
1591 | free (dvd); | |
24865428 NA |
1592 | return -1; /* errno is set for us. */ |
1593 | } | |
47d546f4 | 1594 | |
47d546f4 NA |
1595 | fp->ctf_flags |= LCTF_DIRTY; |
1596 | return 0; | |
1597 | } | |
1598 | ||
926c9e76 NA |
1599 | typedef struct ctf_bundle |
1600 | { | |
1601 | ctf_file_t *ctb_file; /* CTF container handle. */ | |
1602 | ctf_id_t ctb_type; /* CTF type identifier. */ | |
1603 | ctf_dtdef_t *ctb_dtd; /* CTF dynamic type definition (if any). */ | |
1604 | } ctf_bundle_t; | |
1605 | ||
c499eb68 NA |
1606 | static int |
1607 | enumcmp (const char *name, int value, void *arg) | |
1608 | { | |
1609 | ctf_bundle_t *ctb = arg; | |
1610 | int bvalue; | |
1611 | ||
a0486bac | 1612 | if (ctf_enum_value (ctb->ctb_file, ctb->ctb_type, name, &bvalue) < 0) |
c499eb68 | 1613 | { |
926c9e76 NA |
1614 | ctf_err_warn (ctb->ctb_file, 0, 0, |
1615 | _("conflict due to enum %s iteration error"), name); | |
c499eb68 NA |
1616 | return 1; |
1617 | } | |
1618 | if (value != bvalue) | |
1619 | { | |
926c9e76 NA |
1620 | ctf_err_warn (ctb->ctb_file, 1, ECTF_CONFLICT, |
1621 | _("conflict due to enum value change: %i versus %i"), | |
1622 | value, bvalue); | |
c499eb68 NA |
1623 | return 1; |
1624 | } | |
1625 | return 0; | |
1626 | } | |
1627 | ||
1628 | static int | |
1629 | enumadd (const char *name, int value, void *arg) | |
1630 | { | |
1631 | ctf_bundle_t *ctb = arg; | |
1632 | ||
1633 | return (ctf_add_enumerator (ctb->ctb_file, ctb->ctb_type, | |
a0486bac | 1634 | name, value) < 0); |
c499eb68 NA |
1635 | } |
1636 | ||
1637 | static int | |
1638 | membcmp (const char *name, ctf_id_t type _libctf_unused_, unsigned long offset, | |
1639 | void *arg) | |
1640 | { | |
1641 | ctf_bundle_t *ctb = arg; | |
1642 | ctf_membinfo_t ctm; | |
1643 | ||
f47ca311 NA |
1644 | /* Don't check nameless members (e.g. anonymous structs/unions) against each |
1645 | other. */ | |
1646 | if (name[0] == 0) | |
1647 | return 0; | |
1648 | ||
a0486bac | 1649 | if (ctf_member_info (ctb->ctb_file, ctb->ctb_type, name, &ctm) < 0) |
c499eb68 | 1650 | { |
926c9e76 NA |
1651 | ctf_err_warn (ctb->ctb_file, 0, 0, |
1652 | _("conflict due to struct member %s iteration error"), | |
1653 | name); | |
c499eb68 NA |
1654 | return 1; |
1655 | } | |
1656 | if (ctm.ctm_offset != offset) | |
1657 | { | |
926c9e76 NA |
1658 | ctf_err_warn (ctb->ctb_file, 1, ECTF_CONFLICT, |
1659 | _("conflict due to struct member %s offset change: " | |
1660 | "%lx versus %lx"), | |
1661 | name, ctm.ctm_offset, offset); | |
c499eb68 NA |
1662 | return 1; |
1663 | } | |
1664 | return 0; | |
1665 | } | |
1666 | ||
1667 | static int | |
1668 | membadd (const char *name, ctf_id_t type, unsigned long offset, void *arg) | |
1669 | { | |
1670 | ctf_bundle_t *ctb = arg; | |
1671 | ctf_dmdef_t *dmd; | |
1672 | char *s = NULL; | |
1673 | ||
de07e349 | 1674 | if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL) |
c499eb68 NA |
1675 | return (ctf_set_errno (ctb->ctb_file, EAGAIN)); |
1676 | ||
de07e349 | 1677 | if (name != NULL && (s = strdup (name)) == NULL) |
c499eb68 | 1678 | { |
de07e349 | 1679 | free (dmd); |
c499eb68 NA |
1680 | return (ctf_set_errno (ctb->ctb_file, EAGAIN)); |
1681 | } | |
1682 | ||
1683 | /* For now, dmd_type is copied as the src_fp's type; it is reset to an | |
1684 | equivalent dst_fp type by a final loop in ctf_add_type(), below. */ | |
1685 | dmd->dmd_name = s; | |
1686 | dmd->dmd_type = type; | |
1687 | dmd->dmd_offset = offset; | |
1688 | dmd->dmd_value = -1; | |
1689 | ||
1690 | ctf_list_append (&ctb->ctb_dtd->dtd_u.dtu_members, dmd); | |
1691 | ||
c499eb68 NA |
1692 | ctb->ctb_file->ctf_flags |= LCTF_DIRTY; |
1693 | return 0; | |
1694 | } | |
1695 | ||
1696 | /* The ctf_add_type routine is used to copy a type from a source CTF container | |
1697 | to a dynamic destination container. This routine operates recursively by | |
1698 | following the source type's links and embedded member types. If the | |
1699 | destination container already contains a named type which has the same | |
1700 | attributes, then we succeed and return this type but no changes occur. */ | |
99dc3ebd NA |
1701 | static ctf_id_t |
1702 | ctf_add_type_internal (ctf_file_t *dst_fp, ctf_file_t *src_fp, ctf_id_t src_type, | |
1703 | ctf_file_t *proc_tracking_fp) | |
c499eb68 NA |
1704 | { |
1705 | ctf_id_t dst_type = CTF_ERR; | |
1706 | uint32_t dst_kind = CTF_K_UNKNOWN; | |
99dc3ebd | 1707 | ctf_file_t *tmp_fp = dst_fp; |
c499eb68 NA |
1708 | ctf_id_t tmp; |
1709 | ||
1710 | const char *name; | |
5de9eada | 1711 | uint32_t kind, forward_kind, flag, vlen; |
c499eb68 NA |
1712 | |
1713 | const ctf_type_t *src_tp, *dst_tp; | |
1714 | ctf_bundle_t src, dst; | |
1715 | ctf_encoding_t src_en, dst_en; | |
1716 | ctf_arinfo_t src_ar, dst_ar; | |
1717 | ||
c499eb68 | 1718 | ctf_funcinfo_t ctc; |
c499eb68 | 1719 | |
886453cb | 1720 | ctf_id_t orig_src_type = src_type; |
c499eb68 NA |
1721 | |
1722 | if (!(dst_fp->ctf_flags & LCTF_RDWR)) | |
1723 | return (ctf_set_errno (dst_fp, ECTF_RDONLY)); | |
1724 | ||
1725 | if ((src_tp = ctf_lookup_by_id (&src_fp, src_type)) == NULL) | |
1726 | return (ctf_set_errno (dst_fp, ctf_errno (src_fp))); | |
1727 | ||
791915db NA |
1728 | if ((ctf_type_resolve (src_fp, src_type) == CTF_ERR) |
1729 | && (ctf_errno (src_fp) == ECTF_NONREPRESENTABLE)) | |
1730 | return (ctf_set_errno (dst_fp, ECTF_NONREPRESENTABLE)); | |
1731 | ||
c499eb68 NA |
1732 | name = ctf_strptr (src_fp, src_tp->ctt_name); |
1733 | kind = LCTF_INFO_KIND (src_fp, src_tp->ctt_info); | |
1734 | flag = LCTF_INFO_ISROOT (src_fp, src_tp->ctt_info); | |
1735 | vlen = LCTF_INFO_VLEN (src_fp, src_tp->ctt_info); | |
1736 | ||
99dc3ebd NA |
1737 | /* If this is a type we are currently in the middle of adding, hand it |
1738 | straight back. (This lets us handle self-referential structures without | |
1739 | considering forwards and empty structures the same as their completed | |
1740 | forms.) */ | |
1741 | ||
1742 | tmp = ctf_type_mapping (src_fp, src_type, &tmp_fp); | |
1743 | ||
1744 | if (tmp != 0) | |
1745 | { | |
1746 | if (ctf_dynhash_lookup (proc_tracking_fp->ctf_add_processing, | |
1747 | (void *) (uintptr_t) src_type)) | |
1748 | return tmp; | |
1749 | ||
1750 | /* If this type has already been added from this container, and is the same | |
1751 | kind and (if a struct or union) has the same number of members, hand it | |
1752 | straight back. */ | |
1753 | ||
d04a47ac | 1754 | if (ctf_type_kind_unsliced (tmp_fp, tmp) == (int) kind) |
99dc3ebd | 1755 | { |
d04a47ac NA |
1756 | if (kind == CTF_K_STRUCT || kind == CTF_K_UNION |
1757 | || kind == CTF_K_ENUM) | |
1758 | { | |
1759 | if ((dst_tp = ctf_lookup_by_id (&tmp_fp, dst_type)) != NULL) | |
1760 | if (vlen == LCTF_INFO_VLEN (tmp_fp, dst_tp->ctt_info)) | |
1761 | return tmp; | |
1762 | } | |
1763 | else | |
1764 | return tmp; | |
99dc3ebd NA |
1765 | } |
1766 | } | |
1767 | ||
5de9eada NA |
1768 | forward_kind = kind; |
1769 | if (kind == CTF_K_FORWARD) | |
1770 | forward_kind = src_tp->ctt_type; | |
1771 | ||
c499eb68 NA |
1772 | /* If the source type has a name and is a root type (visible at the |
1773 | top-level scope), lookup the name in the destination container and | |
1774 | verify that it is of the same kind before we do anything else. */ | |
1775 | ||
1776 | if ((flag & CTF_ADD_ROOT) && name[0] != '\0' | |
676c3ecb | 1777 | && (tmp = ctf_lookup_by_rawname (dst_fp, forward_kind, name)) != 0) |
c499eb68 NA |
1778 | { |
1779 | dst_type = tmp; | |
1780 | dst_kind = ctf_type_kind_unsliced (dst_fp, dst_type); | |
1781 | } | |
1782 | ||
1783 | /* If an identically named dst_type exists, fail with ECTF_CONFLICT | |
1784 | unless dst_type is a forward declaration and src_type is a struct, | |
5de9eada | 1785 | union, or enum (i.e. the definition of the previous forward decl). |
c499eb68 | 1786 | |
5de9eada NA |
1787 | We also allow addition in the opposite order (addition of a forward when a |
1788 | struct, union, or enum already exists), which is a NOP and returns the | |
1789 | already-present struct, union, or enum. */ | |
1790 | ||
1791 | if (dst_type != CTF_ERR && dst_kind != kind) | |
c499eb68 | 1792 | { |
5de9eada NA |
1793 | if (kind == CTF_K_FORWARD |
1794 | && (dst_kind == CTF_K_ENUM || dst_kind == CTF_K_STRUCT | |
1795 | || dst_kind == CTF_K_UNION)) | |
1796 | { | |
1797 | ctf_add_type_mapping (src_fp, src_type, dst_fp, dst_type); | |
1798 | return dst_type; | |
1799 | } | |
1800 | ||
1801 | if (dst_kind != CTF_K_FORWARD | |
1802 | || (kind != CTF_K_ENUM && kind != CTF_K_STRUCT | |
1803 | && kind != CTF_K_UNION)) | |
1804 | { | |
926c9e76 NA |
1805 | ctf_err_warn (dst_fp, 1, ECTF_CONFLICT, |
1806 | _("ctf_add_file(): conflict for type %s: " | |
1807 | "kinds differ, new: %i; old (ID %lx): %i"), | |
1808 | name, kind, dst_type, dst_kind); | |
5de9eada NA |
1809 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); |
1810 | } | |
c499eb68 NA |
1811 | } |
1812 | ||
1813 | /* We take special action for an integer, float, or slice since it is | |
1814 | described not only by its name but also its encoding. For integers, | |
1815 | bit-fields exploit this degeneracy. */ | |
1816 | ||
1817 | if (kind == CTF_K_INTEGER || kind == CTF_K_FLOAT || kind == CTF_K_SLICE) | |
1818 | { | |
1819 | if (ctf_type_encoding (src_fp, src_type, &src_en) != 0) | |
1820 | return (ctf_set_errno (dst_fp, ctf_errno (src_fp))); | |
1821 | ||
1822 | if (dst_type != CTF_ERR) | |
1823 | { | |
1824 | ctf_file_t *fp = dst_fp; | |
1825 | ||
1826 | if ((dst_tp = ctf_lookup_by_id (&fp, dst_type)) == NULL) | |
1827 | return CTF_ERR; | |
1828 | ||
99dc3ebd NA |
1829 | if (ctf_type_encoding (dst_fp, dst_type, &dst_en) != 0) |
1830 | return CTF_ERR; /* errno set for us. */ | |
1831 | ||
c499eb68 NA |
1832 | if (LCTF_INFO_ISROOT (fp, dst_tp->ctt_info) & CTF_ADD_ROOT) |
1833 | { | |
1834 | /* The type that we found in the hash is also root-visible. If | |
1835 | the two types match then use the existing one; otherwise, | |
1836 | declare a conflict. Note: slices are not certain to match | |
1837 | even if there is no conflict: we must check the contained type | |
1838 | too. */ | |
1839 | ||
c499eb68 NA |
1840 | if (memcmp (&src_en, &dst_en, sizeof (ctf_encoding_t)) == 0) |
1841 | { | |
1842 | if (kind != CTF_K_SLICE) | |
886453cb NA |
1843 | { |
1844 | ctf_add_type_mapping (src_fp, src_type, dst_fp, dst_type); | |
1845 | return dst_type; | |
1846 | } | |
c499eb68 NA |
1847 | } |
1848 | else | |
1849 | { | |
1850 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); | |
1851 | } | |
1852 | } | |
1853 | else | |
1854 | { | |
99dc3ebd NA |
1855 | /* We found a non-root-visible type in the hash. If its encoding |
1856 | is the same, we can reuse it, unless it is a slice. */ | |
c499eb68 | 1857 | |
99dc3ebd | 1858 | if (memcmp (&src_en, &dst_en, sizeof (ctf_encoding_t)) == 0) |
c499eb68 NA |
1859 | { |
1860 | if (kind != CTF_K_SLICE) | |
886453cb | 1861 | { |
99dc3ebd NA |
1862 | ctf_add_type_mapping (src_fp, src_type, dst_fp, dst_type); |
1863 | return dst_type; | |
886453cb | 1864 | } |
c499eb68 | 1865 | } |
c499eb68 NA |
1866 | } |
1867 | } | |
1868 | } | |
1869 | ||
1870 | src.ctb_file = src_fp; | |
1871 | src.ctb_type = src_type; | |
1872 | src.ctb_dtd = NULL; | |
1873 | ||
1874 | dst.ctb_file = dst_fp; | |
1875 | dst.ctb_type = dst_type; | |
1876 | dst.ctb_dtd = NULL; | |
1877 | ||
99dc3ebd NA |
1878 | /* Now perform kind-specific processing. If dst_type is CTF_ERR, then we add |
1879 | a new type with the same properties as src_type to dst_fp. If dst_type is | |
1880 | not CTF_ERR, then we verify that dst_type has the same attributes as | |
1881 | src_type. We recurse for embedded references. Before we start, we note | |
1882 | that we are processing this type, to prevent infinite recursion: we do not | |
1883 | re-process any type that appears in this list. The list is emptied | |
1884 | wholesale at the end of processing everything in this recursive stack. */ | |
1885 | ||
1886 | if (ctf_dynhash_insert (proc_tracking_fp->ctf_add_processing, | |
1887 | (void *) (uintptr_t) src_type, (void *) 1) < 0) | |
1888 | return ctf_set_errno (dst_fp, ENOMEM); | |
1889 | ||
c499eb68 NA |
1890 | switch (kind) |
1891 | { | |
1892 | case CTF_K_INTEGER: | |
1893 | /* If we found a match we will have either returned it or declared a | |
1894 | conflict. */ | |
1895 | dst_type = ctf_add_integer (dst_fp, flag, name, &src_en); | |
1896 | break; | |
1897 | ||
1898 | case CTF_K_FLOAT: | |
1899 | /* If we found a match we will have either returned it or declared a | |
1900 | conflict. */ | |
1901 | dst_type = ctf_add_float (dst_fp, flag, name, &src_en); | |
1902 | break; | |
1903 | ||
1904 | case CTF_K_SLICE: | |
1905 | /* We have checked for conflicting encodings: now try to add the | |
1906 | contained type. */ | |
1907 | src_type = ctf_type_reference (src_fp, src_type); | |
99dc3ebd NA |
1908 | src_type = ctf_add_type_internal (dst_fp, src_fp, src_type, |
1909 | proc_tracking_fp); | |
c499eb68 NA |
1910 | |
1911 | if (src_type == CTF_ERR) | |
1912 | return CTF_ERR; /* errno is set for us. */ | |
1913 | ||
1914 | dst_type = ctf_add_slice (dst_fp, flag, src_type, &src_en); | |
1915 | break; | |
1916 | ||
1917 | case CTF_K_POINTER: | |
1918 | case CTF_K_VOLATILE: | |
1919 | case CTF_K_CONST: | |
1920 | case CTF_K_RESTRICT: | |
1921 | src_type = ctf_type_reference (src_fp, src_type); | |
99dc3ebd NA |
1922 | src_type = ctf_add_type_internal (dst_fp, src_fp, src_type, |
1923 | proc_tracking_fp); | |
c499eb68 NA |
1924 | |
1925 | if (src_type == CTF_ERR) | |
1926 | return CTF_ERR; /* errno is set for us. */ | |
1927 | ||
1928 | dst_type = ctf_add_reftype (dst_fp, flag, src_type, kind); | |
1929 | break; | |
1930 | ||
1931 | case CTF_K_ARRAY: | |
a0486bac | 1932 | if (ctf_array_info (src_fp, src_type, &src_ar) != 0) |
c499eb68 NA |
1933 | return (ctf_set_errno (dst_fp, ctf_errno (src_fp))); |
1934 | ||
1935 | src_ar.ctr_contents = | |
99dc3ebd NA |
1936 | ctf_add_type_internal (dst_fp, src_fp, src_ar.ctr_contents, |
1937 | proc_tracking_fp); | |
1938 | src_ar.ctr_index = ctf_add_type_internal (dst_fp, src_fp, | |
1939 | src_ar.ctr_index, | |
1940 | proc_tracking_fp); | |
c499eb68 NA |
1941 | src_ar.ctr_nelems = src_ar.ctr_nelems; |
1942 | ||
1943 | if (src_ar.ctr_contents == CTF_ERR || src_ar.ctr_index == CTF_ERR) | |
1944 | return CTF_ERR; /* errno is set for us. */ | |
1945 | ||
1946 | if (dst_type != CTF_ERR) | |
1947 | { | |
1948 | if (ctf_array_info (dst_fp, dst_type, &dst_ar) != 0) | |
1949 | return CTF_ERR; /* errno is set for us. */ | |
1950 | ||
1951 | if (memcmp (&src_ar, &dst_ar, sizeof (ctf_arinfo_t))) | |
1952 | { | |
926c9e76 NA |
1953 | ctf_err_warn (dst_fp, 1, ECTF_CONFLICT, |
1954 | _("conflict for type %s against ID %lx: array info " | |
1955 | "differs, old %lx/%lx/%x; new: %lx/%lx/%x"), | |
1956 | name, dst_type, src_ar.ctr_contents, | |
1957 | src_ar.ctr_index, src_ar.ctr_nelems, | |
1958 | dst_ar.ctr_contents, dst_ar.ctr_index, | |
1959 | dst_ar.ctr_nelems); | |
c499eb68 NA |
1960 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); |
1961 | } | |
1962 | } | |
1963 | else | |
1964 | dst_type = ctf_add_array (dst_fp, flag, &src_ar); | |
1965 | break; | |
1966 | ||
1967 | case CTF_K_FUNCTION: | |
99dc3ebd NA |
1968 | ctc.ctc_return = ctf_add_type_internal (dst_fp, src_fp, |
1969 | src_tp->ctt_type, | |
1970 | proc_tracking_fp); | |
c499eb68 NA |
1971 | ctc.ctc_argc = 0; |
1972 | ctc.ctc_flags = 0; | |
1973 | ||
1974 | if (ctc.ctc_return == CTF_ERR) | |
1975 | return CTF_ERR; /* errno is set for us. */ | |
1976 | ||
1977 | dst_type = ctf_add_function (dst_fp, flag, &ctc, NULL); | |
1978 | break; | |
1979 | ||
1980 | case CTF_K_STRUCT: | |
1981 | case CTF_K_UNION: | |
1982 | { | |
1983 | ctf_dmdef_t *dmd; | |
1984 | int errs = 0; | |
a0486bac JM |
1985 | size_t size; |
1986 | ssize_t ssize; | |
99dc3ebd | 1987 | ctf_dtdef_t *dtd; |
c499eb68 NA |
1988 | |
1989 | /* Technically to match a struct or union we need to check both | |
1990 | ways (src members vs. dst, dst members vs. src) but we make | |
1991 | this more optimal by only checking src vs. dst and comparing | |
1992 | the total size of the structure (which we must do anyway) | |
1993 | which covers the possibility of dst members not in src. | |
1994 | This optimization can be defeated for unions, but is so | |
1995 | pathological as to render it irrelevant for our purposes. */ | |
1996 | ||
99dc3ebd NA |
1997 | if (dst_type != CTF_ERR && kind != CTF_K_FORWARD |
1998 | && dst_kind != CTF_K_FORWARD) | |
c499eb68 NA |
1999 | { |
2000 | if (ctf_type_size (src_fp, src_type) != | |
2001 | ctf_type_size (dst_fp, dst_type)) | |
2002 | { | |
926c9e76 NA |
2003 | ctf_err_warn (dst_fp, 1, ECTF_CONFLICT, |
2004 | _("conflict for type %s against ID %lx: union " | |
2005 | "size differs, old %li, new %li"), name, | |
2006 | dst_type, (long) ctf_type_size (src_fp, src_type), | |
2007 | (long) ctf_type_size (dst_fp, dst_type)); | |
c499eb68 NA |
2008 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); |
2009 | } | |
2010 | ||
2011 | if (ctf_member_iter (src_fp, src_type, membcmp, &dst)) | |
2012 | { | |
926c9e76 NA |
2013 | ctf_err_warn (dst_fp, 1, ECTF_CONFLICT, |
2014 | _("conflict for type %s against ID %lx: members " | |
2015 | "differ, see above"), name, dst_type); | |
c499eb68 NA |
2016 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); |
2017 | } | |
2018 | ||
2019 | break; | |
2020 | } | |
2021 | ||
2022 | /* Unlike the other cases, copying structs and unions is done | |
2023 | manually so as to avoid repeated lookups in ctf_add_member | |
2024 | and to ensure the exact same member offsets as in src_type. */ | |
2025 | ||
676c3ecb | 2026 | dst_type = ctf_add_generic (dst_fp, flag, name, kind, &dtd); |
c499eb68 NA |
2027 | if (dst_type == CTF_ERR) |
2028 | return CTF_ERR; /* errno is set for us. */ | |
2029 | ||
2030 | dst.ctb_type = dst_type; | |
2031 | dst.ctb_dtd = dtd; | |
2032 | ||
99dc3ebd NA |
2033 | /* Pre-emptively add this struct to the type mapping so that |
2034 | structures that refer to themselves work. */ | |
2035 | ctf_add_type_mapping (src_fp, src_type, dst_fp, dst_type); | |
2036 | ||
c499eb68 NA |
2037 | if (ctf_member_iter (src_fp, src_type, membadd, &dst) != 0) |
2038 | errs++; /* Increment errs and fail at bottom of case. */ | |
2039 | ||
a0486bac JM |
2040 | if ((ssize = ctf_type_size (src_fp, src_type)) < 0) |
2041 | return CTF_ERR; /* errno is set for us. */ | |
2042 | ||
2043 | size = (size_t) ssize; | |
2044 | if (size > CTF_MAX_SIZE) | |
c499eb68 NA |
2045 | { |
2046 | dtd->dtd_data.ctt_size = CTF_LSIZE_SENT; | |
2047 | dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI (size); | |
2048 | dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO (size); | |
2049 | } | |
2050 | else | |
2051 | dtd->dtd_data.ctt_size = (uint32_t) size; | |
2052 | ||
2053 | dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, flag, vlen); | |
2054 | ||
2055 | /* Make a final pass through the members changing each dmd_type (a | |
2056 | src_fp type) to an equivalent type in dst_fp. We pass through all | |
791915db NA |
2057 | members, leaving any that fail set to CTF_ERR, unless they fail |
2058 | because they are marking a member of type not representable in this | |
2059 | version of CTF, in which case we just want to silently omit them: | |
2060 | no consumer can do anything with them anyway. */ | |
c499eb68 NA |
2061 | for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members); |
2062 | dmd != NULL; dmd = ctf_list_next (dmd)) | |
2063 | { | |
99dc3ebd NA |
2064 | ctf_file_t *dst = dst_fp; |
2065 | ctf_id_t memb_type; | |
2066 | ||
2067 | memb_type = ctf_type_mapping (src_fp, dmd->dmd_type, &dst); | |
2068 | if (memb_type == 0) | |
791915db | 2069 | { |
99dc3ebd NA |
2070 | if ((dmd->dmd_type = |
2071 | ctf_add_type_internal (dst_fp, src_fp, dmd->dmd_type, | |
2072 | proc_tracking_fp)) == CTF_ERR) | |
2073 | { | |
2074 | if (ctf_errno (dst_fp) != ECTF_NONREPRESENTABLE) | |
2075 | errs++; | |
2076 | } | |
791915db | 2077 | } |
99dc3ebd NA |
2078 | else |
2079 | dmd->dmd_type = memb_type; | |
c499eb68 NA |
2080 | } |
2081 | ||
2082 | if (errs) | |
2083 | return CTF_ERR; /* errno is set for us. */ | |
2084 | break; | |
2085 | } | |
2086 | ||
2087 | case CTF_K_ENUM: | |
99dc3ebd NA |
2088 | if (dst_type != CTF_ERR && kind != CTF_K_FORWARD |
2089 | && dst_kind != CTF_K_FORWARD) | |
c499eb68 NA |
2090 | { |
2091 | if (ctf_enum_iter (src_fp, src_type, enumcmp, &dst) | |
2092 | || ctf_enum_iter (dst_fp, dst_type, enumcmp, &src)) | |
2093 | { | |
926c9e76 NA |
2094 | ctf_err_warn (dst_fp, 1, ECTF_CONFLICT, |
2095 | _("conflict for enum %s against ID %lx: members " | |
2096 | "differ, see above"), name, dst_type); | |
c499eb68 NA |
2097 | return (ctf_set_errno (dst_fp, ECTF_CONFLICT)); |
2098 | } | |
2099 | } | |
2100 | else | |
2101 | { | |
2102 | dst_type = ctf_add_enum (dst_fp, flag, name); | |
2103 | if ((dst.ctb_type = dst_type) == CTF_ERR | |
2104 | || ctf_enum_iter (src_fp, src_type, enumadd, &dst)) | |
2105 | return CTF_ERR; /* errno is set for us */ | |
2106 | } | |
2107 | break; | |
2108 | ||
2109 | case CTF_K_FORWARD: | |
2110 | if (dst_type == CTF_ERR) | |
5de9eada | 2111 | dst_type = ctf_add_forward (dst_fp, flag, name, forward_kind); |
c499eb68 NA |
2112 | break; |
2113 | ||
2114 | case CTF_K_TYPEDEF: | |
2115 | src_type = ctf_type_reference (src_fp, src_type); | |
99dc3ebd NA |
2116 | src_type = ctf_add_type_internal (dst_fp, src_fp, src_type, |
2117 | proc_tracking_fp); | |
c499eb68 NA |
2118 | |
2119 | if (src_type == CTF_ERR) | |
2120 | return CTF_ERR; /* errno is set for us. */ | |
2121 | ||
2122 | /* If dst_type is not CTF_ERR at this point, we should check if | |
2123 | ctf_type_reference(dst_fp, dst_type) != src_type and if so fail with | |
2124 | ECTF_CONFLICT. However, this causes problems with bitness typedefs | |
2125 | that vary based on things like if 32-bit then pid_t is int otherwise | |
2126 | long. We therefore omit this check and assume that if the identically | |
2127 | named typedef already exists in dst_fp, it is correct or | |
2128 | equivalent. */ | |
2129 | ||
2130 | if (dst_type == CTF_ERR) | |
c499eb68 | 2131 | dst_type = ctf_add_typedef (dst_fp, flag, name, src_type); |
99dc3ebd | 2132 | |
c499eb68 NA |
2133 | break; |
2134 | ||
2135 | default: | |
2136 | return (ctf_set_errno (dst_fp, ECTF_CORRUPT)); | |
2137 | } | |
2138 | ||
886453cb NA |
2139 | if (dst_type != CTF_ERR) |
2140 | ctf_add_type_mapping (src_fp, orig_src_type, dst_fp, dst_type); | |
c499eb68 NA |
2141 | return dst_type; |
2142 | } | |
2143 | ||
99dc3ebd NA |
2144 | ctf_id_t |
2145 | ctf_add_type (ctf_file_t *dst_fp, ctf_file_t *src_fp, ctf_id_t src_type) | |
2146 | { | |
2147 | ctf_id_t id; | |
2148 | ||
2149 | if (!src_fp->ctf_add_processing) | |
2150 | src_fp->ctf_add_processing = ctf_dynhash_create (ctf_hash_integer, | |
2151 | ctf_hash_eq_integer, | |
2152 | NULL, NULL); | |
2153 | ||
2154 | /* We store the hash on the source, because it contains only source type IDs: | |
2155 | but callers will invariably expect errors to appear on the dest. */ | |
2156 | if (!src_fp->ctf_add_processing) | |
2157 | return (ctf_set_errno (dst_fp, ENOMEM)); | |
2158 | ||
2159 | id = ctf_add_type_internal (dst_fp, src_fp, src_type, src_fp); | |
2160 | ctf_dynhash_empty (src_fp->ctf_add_processing); | |
2161 | ||
2162 | return id; | |
2163 | } | |
2164 | ||
fd55eae8 | 2165 | /* Write the compressed CTF data stream to the specified gzFile descriptor. */ |
47d546f4 NA |
2166 | int |
2167 | ctf_gzwrite (ctf_file_t *fp, gzFile fd) | |
2168 | { | |
fd55eae8 NA |
2169 | const unsigned char *buf; |
2170 | ssize_t resid; | |
47d546f4 NA |
2171 | ssize_t len; |
2172 | ||
fd55eae8 NA |
2173 | resid = sizeof (ctf_header_t); |
2174 | buf = (unsigned char *) fp->ctf_header; | |
2175 | while (resid != 0) | |
2176 | { | |
2177 | if ((len = gzwrite (fd, buf, resid)) <= 0) | |
2178 | return (ctf_set_errno (fp, errno)); | |
2179 | resid -= len; | |
2180 | buf += len; | |
2181 | } | |
2182 | ||
2183 | resid = fp->ctf_size; | |
2184 | buf = fp->ctf_buf; | |
47d546f4 NA |
2185 | while (resid != 0) |
2186 | { | |
2187 | if ((len = gzwrite (fd, buf, resid)) <= 0) | |
2188 | return (ctf_set_errno (fp, errno)); | |
2189 | resid -= len; | |
2190 | buf += len; | |
2191 | } | |
2192 | ||
2193 | return 0; | |
2194 | } | |
2195 | ||
2196 | /* Compress the specified CTF data stream and write it to the specified file | |
2197 | descriptor. */ | |
2198 | int | |
2199 | ctf_compress_write (ctf_file_t *fp, int fd) | |
2200 | { | |
2201 | unsigned char *buf; | |
2202 | unsigned char *bp; | |
2203 | ctf_header_t h; | |
2204 | ctf_header_t *hp = &h; | |
2205 | ssize_t header_len = sizeof (ctf_header_t); | |
2206 | ssize_t compress_len; | |
47d546f4 NA |
2207 | ssize_t len; |
2208 | int rc; | |
2209 | int err = 0; | |
2210 | ||
676c3ecb NA |
2211 | if (ctf_serialize (fp) < 0) |
2212 | return -1; /* errno is set for us. */ | |
2213 | ||
fd55eae8 | 2214 | memcpy (hp, fp->ctf_header, header_len); |
47d546f4 | 2215 | hp->cth_flags |= CTF_F_COMPRESS; |
676c3ecb | 2216 | compress_len = compressBound (fp->ctf_size); |
47d546f4 | 2217 | |
de07e349 | 2218 | if ((buf = malloc (compress_len)) == NULL) |
926c9e76 NA |
2219 | { |
2220 | ctf_err_warn (fp, 0, 0, _("ctf_compress_write: cannot allocate %li bytes"), | |
2221 | (unsigned long) compress_len); | |
2222 | return (ctf_set_errno (fp, ECTF_ZALLOC)); | |
2223 | } | |
47d546f4 | 2224 | |
65365aa8 | 2225 | if ((rc = compress (buf, (uLongf *) &compress_len, |
fd55eae8 | 2226 | fp->ctf_buf, fp->ctf_size)) != Z_OK) |
47d546f4 | 2227 | { |
47d546f4 | 2228 | err = ctf_set_errno (fp, ECTF_COMPRESS); |
926c9e76 | 2229 | ctf_err_warn (fp, 0, 0, _("zlib deflate err: %s"), zError (rc)); |
47d546f4 NA |
2230 | goto ret; |
2231 | } | |
2232 | ||
2233 | while (header_len > 0) | |
2234 | { | |
2235 | if ((len = write (fd, hp, header_len)) < 0) | |
2236 | { | |
2237 | err = ctf_set_errno (fp, errno); | |
926c9e76 | 2238 | ctf_err_warn (fp, 0, 0, _("ctf_compress_write: error writing header")); |
47d546f4 NA |
2239 | goto ret; |
2240 | } | |
2241 | header_len -= len; | |
2242 | hp += len; | |
2243 | } | |
2244 | ||
2245 | bp = buf; | |
2246 | while (compress_len > 0) | |
2247 | { | |
2248 | if ((len = write (fd, bp, compress_len)) < 0) | |
2249 | { | |
2250 | err = ctf_set_errno (fp, errno); | |
926c9e76 | 2251 | ctf_err_warn (fp, 0, 0, _("ctf_compress_write: error writing")); |
47d546f4 NA |
2252 | goto ret; |
2253 | } | |
2254 | compress_len -= len; | |
2255 | bp += len; | |
2256 | } | |
2257 | ||
2258 | ret: | |
de07e349 | 2259 | free (buf); |
47d546f4 NA |
2260 | return err; |
2261 | } | |
2262 | ||
5537f9b9 NA |
2263 | /* Optionally compress the specified CTF data stream and return it as a new |
2264 | dynamically-allocated string. */ | |
2265 | unsigned char * | |
2266 | ctf_write_mem (ctf_file_t *fp, size_t *size, size_t threshold) | |
2267 | { | |
2268 | unsigned char *buf; | |
2269 | unsigned char *bp; | |
2270 | ctf_header_t *hp; | |
2271 | ssize_t header_len = sizeof (ctf_header_t); | |
2272 | ssize_t compress_len; | |
5537f9b9 NA |
2273 | int rc; |
2274 | ||
676c3ecb NA |
2275 | if (ctf_serialize (fp) < 0) |
2276 | return NULL; /* errno is set for us. */ | |
2277 | ||
2278 | compress_len = compressBound (fp->ctf_size); | |
5537f9b9 | 2279 | if (fp->ctf_size < threshold) |
676c3ecb NA |
2280 | compress_len = fp->ctf_size; |
2281 | if ((buf = malloc (compress_len | |
5537f9b9 NA |
2282 | + sizeof (struct ctf_header))) == NULL) |
2283 | { | |
2284 | ctf_set_errno (fp, ENOMEM); | |
926c9e76 NA |
2285 | ctf_err_warn (fp, 0, 0, _("ctf_write_mem: cannot allocate %li bytes"), |
2286 | (unsigned long) (compress_len + sizeof (struct ctf_header))); | |
5537f9b9 NA |
2287 | return NULL; |
2288 | } | |
2289 | ||
2290 | hp = (ctf_header_t *) buf; | |
2291 | memcpy (hp, fp->ctf_header, header_len); | |
2292 | bp = buf + sizeof (struct ctf_header); | |
2293 | *size = sizeof (struct ctf_header); | |
2294 | ||
5537f9b9 NA |
2295 | if (fp->ctf_size < threshold) |
2296 | { | |
2297 | hp->cth_flags &= ~CTF_F_COMPRESS; | |
2298 | memcpy (bp, fp->ctf_buf, fp->ctf_size); | |
2299 | *size += fp->ctf_size; | |
2300 | } | |
2301 | else | |
2302 | { | |
2303 | hp->cth_flags |= CTF_F_COMPRESS; | |
2304 | if ((rc = compress (bp, (uLongf *) &compress_len, | |
2305 | fp->ctf_buf, fp->ctf_size)) != Z_OK) | |
2306 | { | |
5537f9b9 | 2307 | ctf_set_errno (fp, ECTF_COMPRESS); |
926c9e76 | 2308 | ctf_err_warn (fp, 0, 0, _("zlib deflate err: %s"), zError (rc)); |
de07e349 | 2309 | free (buf); |
5537f9b9 NA |
2310 | return NULL; |
2311 | } | |
2312 | *size += compress_len; | |
2313 | } | |
2314 | return buf; | |
2315 | } | |
2316 | ||
fd55eae8 | 2317 | /* Write the uncompressed CTF data stream to the specified file descriptor. */ |
47d546f4 NA |
2318 | int |
2319 | ctf_write (ctf_file_t *fp, int fd) | |
2320 | { | |
fd55eae8 NA |
2321 | const unsigned char *buf; |
2322 | ssize_t resid; | |
47d546f4 NA |
2323 | ssize_t len; |
2324 | ||
676c3ecb NA |
2325 | if (ctf_serialize (fp) < 0) |
2326 | return -1; /* errno is set for us. */ | |
2327 | ||
fd55eae8 NA |
2328 | resid = sizeof (ctf_header_t); |
2329 | buf = (unsigned char *) fp->ctf_header; | |
2330 | while (resid != 0) | |
2331 | { | |
2332 | if ((len = write (fd, buf, resid)) <= 0) | |
926c9e76 NA |
2333 | { |
2334 | ctf_err_warn (fp, 0, errno, _("ctf_write: error writing header")); | |
2335 | return (ctf_set_errno (fp, errno)); | |
2336 | } | |
fd55eae8 NA |
2337 | resid -= len; |
2338 | buf += len; | |
2339 | } | |
2340 | ||
2341 | resid = fp->ctf_size; | |
2342 | buf = fp->ctf_buf; | |
47d546f4 NA |
2343 | while (resid != 0) |
2344 | { | |
fd55eae8 | 2345 | if ((len = write (fd, buf, resid)) <= 0) |
926c9e76 NA |
2346 | { |
2347 | ctf_err_warn (fp, 0, errno, _("ctf_write: error writing")); | |
2348 | return (ctf_set_errno (fp, errno)); | |
2349 | } | |
47d546f4 NA |
2350 | resid -= len; |
2351 | buf += len; | |
2352 | } | |
2353 | ||
2354 | return 0; | |
2355 | } |