Mercurial > hg > CbC > CbC_gcc
annotate gcc/gcov-dump.c @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Dump a gcov file, for debugging use. |
| 145 | 2 Copyright (C) 2002-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Nathan Sidwell <nathan@codesourcery.com> |
| 4 | |
| 5 Gcov is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 3, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 Gcov is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with Gcov; see the file COPYING3. If not see | |
| 17 <http://www.gnu.org/licenses/>. */ | |
| 18 | |
| 19 #include "config.h" | |
| 20 #include "system.h" | |
| 21 #include "coretypes.h" | |
| 22 #include "tm.h" | |
| 23 #include "version.h" | |
| 111 | 24 #include "intl.h" |
| 25 #include "diagnostic.h" | |
| 0 | 26 #include <getopt.h> |
| 27 #define IN_GCOV (-1) | |
| 28 #include "gcov-io.h" | |
| 29 #include "gcov-io.c" | |
| 30 | |
| 111 | 31 static void dump_gcov_file (const char *); |
| 0 | 32 static void print_prefix (const char *, unsigned, gcov_position_t); |
| 33 static void print_usage (void); | |
| 34 static void print_version (void); | |
| 111 | 35 static void tag_function (const char *, unsigned, unsigned, unsigned); |
| 36 static void tag_blocks (const char *, unsigned, unsigned, unsigned); | |
| 37 static void tag_arcs (const char *, unsigned, unsigned, unsigned); | |
| 38 static void tag_lines (const char *, unsigned, unsigned, unsigned); | |
| 39 static void tag_counters (const char *, unsigned, unsigned, unsigned); | |
| 40 static void tag_summary (const char *, unsigned, unsigned, unsigned); | |
| 0 | 41 extern int main (int, char **); |
| 42 | |
| 43 typedef struct tag_format | |
| 44 { | |
| 45 unsigned tag; | |
| 46 char const *name; | |
| 111 | 47 void (*proc) (const char *, unsigned, unsigned, unsigned); |
| 0 | 48 } tag_format_t; |
| 49 | |
| 50 static int flag_dump_contents = 0; | |
| 51 static int flag_dump_positions = 0; | |
| 52 | |
| 53 static const struct option options[] = | |
| 54 { | |
| 55 { "help", no_argument, NULL, 'h' }, | |
| 56 { "version", no_argument, NULL, 'v' }, | |
| 57 { "long", no_argument, NULL, 'l' }, | |
| 58 { "positions", no_argument, NULL, 'o' }, | |
| 59 { 0, 0, 0, 0 } | |
| 60 }; | |
| 61 | |
| 111 | 62 #define VALUE_PADDING_PREFIX " " |
| 63 #define VALUE_PREFIX "%2d: " | |
| 64 | |
| 0 | 65 static const tag_format_t tag_table[] = |
| 66 { | |
| 67 {0, "NOP", NULL}, | |
| 68 {0, "UNKNOWN", NULL}, | |
| 69 {0, "COUNTERS", tag_counters}, | |
| 70 {GCOV_TAG_FUNCTION, "FUNCTION", tag_function}, | |
| 71 {GCOV_TAG_BLOCKS, "BLOCKS", tag_blocks}, | |
| 72 {GCOV_TAG_ARCS, "ARCS", tag_arcs}, | |
| 73 {GCOV_TAG_LINES, "LINES", tag_lines}, | |
| 74 {GCOV_TAG_OBJECT_SUMMARY, "OBJECT_SUMMARY", tag_summary}, | |
| 75 {0, NULL, NULL} | |
| 76 }; | |
| 77 | |
| 78 int | |
| 79 main (int argc ATTRIBUTE_UNUSED, char **argv) | |
| 80 { | |
| 81 int opt; | |
| 111 | 82 const char *p; |
| 83 | |
| 84 p = argv[0] + strlen (argv[0]); | |
| 85 while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
| 86 --p; | |
| 87 progname = p; | |
| 88 | |
| 89 xmalloc_set_program_name (progname); | |
| 0 | 90 |
| 91 /* Unlock the stdio streams. */ | |
| 92 unlock_std_streams (); | |
| 93 | |
| 111 | 94 gcc_init_libintl (); |
| 95 | |
| 96 diagnostic_initialize (global_dc, 0); | |
| 97 | |
| 98 while ((opt = getopt_long (argc, argv, "hlpvw", options, NULL)) != -1) | |
| 0 | 99 { |
| 100 switch (opt) | |
| 101 { | |
| 102 case 'h': | |
| 103 print_usage (); | |
| 104 break; | |
| 105 case 'v': | |
| 106 print_version (); | |
| 107 break; | |
| 108 case 'l': | |
| 109 flag_dump_contents = 1; | |
| 110 break; | |
| 111 case 'p': | |
| 112 flag_dump_positions = 1; | |
| 113 break; | |
| 114 default: | |
| 115 fprintf (stderr, "unknown flag `%c'\n", opt); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 while (argv[optind]) | |
| 111 | 120 dump_gcov_file (argv[optind++]); |
| 0 | 121 return 0; |
| 122 } | |
| 123 | |
| 124 static void | |
| 125 print_usage (void) | |
| 126 { | |
| 127 printf ("Usage: gcov-dump [OPTION] ... gcovfiles\n"); | |
| 128 printf ("Print coverage file contents\n"); | |
| 129 printf (" -h, --help Print this help\n"); | |
| 130 printf (" -l, --long Dump record contents too\n"); | |
| 131 printf (" -p, --positions Dump record positions\n"); | |
| 111 | 132 printf (" -v, --version Print version number\n"); |
| 133 printf ("\nFor bug reporting instructions, please see:\n%s.\n", | |
| 134 bug_report_url); | |
| 0 | 135 } |
| 136 | |
| 137 static void | |
| 138 print_version (void) | |
| 139 { | |
| 140 printf ("gcov-dump %s%s\n", pkgversion_string, version_string); | |
| 145 | 141 printf ("Copyright (C) 2020 Free Software Foundation, Inc.\n"); |
| 0 | 142 printf ("This is free software; see the source for copying conditions.\n" |
| 143 "There is NO warranty; not even for MERCHANTABILITY or \n" | |
| 144 "FITNESS FOR A PARTICULAR PURPOSE.\n\n"); | |
| 145 } | |
| 146 | |
| 147 static void | |
| 148 print_prefix (const char *filename, unsigned depth, gcov_position_t position) | |
| 149 { | |
| 150 static const char prefix[] = " "; | |
| 151 | |
| 152 printf ("%s:", filename); | |
| 153 if (flag_dump_positions) | |
| 111 | 154 printf ("%5lu:", (unsigned long) position); |
| 155 printf ("%.*s", (int) 2 * depth, prefix); | |
| 0 | 156 } |
| 157 | |
| 158 static void | |
| 111 | 159 dump_gcov_file (const char *filename) |
| 0 | 160 { |
| 161 unsigned tags[4]; | |
| 162 unsigned depth = 0; | |
| 131 | 163 bool is_data_type; |
| 0 | 164 |
| 165 if (!gcov_open (filename, 1)) | |
| 166 { | |
| 167 fprintf (stderr, "%s:cannot open\n", filename); | |
| 168 return; | |
| 169 } | |
| 170 | |
| 171 /* magic */ | |
| 172 { | |
| 173 unsigned magic = gcov_read_unsigned (); | |
| 174 unsigned version; | |
| 175 int endianness = 0; | |
| 176 char m[4], v[4]; | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
177 |
| 0 | 178 if ((endianness = gcov_magic (magic, GCOV_DATA_MAGIC))) |
| 131 | 179 is_data_type = true; |
| 0 | 180 else if ((endianness = gcov_magic (magic, GCOV_NOTE_MAGIC))) |
| 131 | 181 is_data_type = false; |
| 0 | 182 else |
| 183 { | |
| 184 printf ("%s:not a gcov file\n", filename); | |
| 185 gcov_close (); | |
| 186 return; | |
| 187 } | |
| 188 version = gcov_read_unsigned (); | |
| 189 GCOV_UNSIGNED2STRING (v, version); | |
| 190 GCOV_UNSIGNED2STRING (m, magic); | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
191 |
| 131 | 192 printf ("%s:%s:magic `%.4s':version `%.4s'%s\n", filename, |
| 193 is_data_type ? "data" : "note", | |
| 0 | 194 m, v, endianness < 0 ? " (swapped endianness)" : ""); |
| 195 if (version != GCOV_VERSION) | |
| 196 { | |
| 197 char e[4]; | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
198 |
| 0 | 199 GCOV_UNSIGNED2STRING (e, GCOV_VERSION); |
| 200 printf ("%s:warning:current version is `%.4s'\n", filename, e); | |
| 201 } | |
| 202 } | |
| 203 | |
| 204 /* stamp */ | |
| 205 { | |
| 206 unsigned stamp = gcov_read_unsigned (); | |
| 207 | |
| 208 printf ("%s:stamp %lu\n", filename, (unsigned long)stamp); | |
| 209 } | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
210 |
| 131 | 211 if (!is_data_type) |
| 212 { | |
| 213 printf ("%s:cwd: %s\n", filename, gcov_read_string ()); | |
| 214 | |
| 215 /* Support for unexecuted basic blocks. */ | |
| 216 unsigned support_unexecuted_blocks = gcov_read_unsigned (); | |
| 217 if (!support_unexecuted_blocks) | |
| 218 printf ("%s: has_unexecuted_block is not supported\n", filename); | |
| 219 } | |
| 220 | |
| 0 | 221 while (1) |
| 222 { | |
| 223 gcov_position_t base, position = gcov_position (); | |
| 224 unsigned tag, length; | |
| 225 tag_format_t const *format; | |
| 226 unsigned tag_depth; | |
| 227 int error; | |
| 228 unsigned mask; | |
| 229 | |
| 230 tag = gcov_read_unsigned (); | |
| 231 if (!tag) | |
| 232 break; | |
| 233 length = gcov_read_unsigned (); | |
| 234 base = gcov_position (); | |
| 235 mask = GCOV_TAG_MASK (tag) >> 1; | |
| 236 for (tag_depth = 4; mask; mask >>= 8) | |
| 237 { | |
| 238 if ((mask & 0xff) != 0xff) | |
| 239 { | |
| 240 printf ("%s:tag `%08x' is invalid\n", filename, tag); | |
| 241 break; | |
| 242 } | |
| 243 tag_depth--; | |
| 244 } | |
| 245 for (format = tag_table; format->name; format++) | |
| 246 if (format->tag == tag) | |
| 247 goto found; | |
| 248 format = &tag_table[GCOV_TAG_IS_COUNTER (tag) ? 2 : 1]; | |
| 249 found:; | |
| 250 if (tag) | |
| 251 { | |
| 252 if (depth && depth < tag_depth) | |
| 253 { | |
| 254 if (!GCOV_TAG_IS_SUBTAG (tags[depth - 1], tag)) | |
| 255 printf ("%s:tag `%08x' is incorrectly nested\n", | |
| 256 filename, tag); | |
| 257 } | |
| 258 depth = tag_depth; | |
| 259 tags[depth - 1] = tag; | |
| 260 } | |
| 261 | |
| 262 print_prefix (filename, tag_depth, position); | |
| 263 printf ("%08x:%4u:%s", tag, length, format->name); | |
| 264 if (format->proc) | |
| 111 | 265 (*format->proc) (filename, tag, length, depth); |
| 0 | 266 |
| 267 printf ("\n"); | |
| 268 if (flag_dump_contents && format->proc) | |
| 269 { | |
| 270 unsigned long actual_length = gcov_position () - base; | |
| 271 | |
| 272 if (actual_length > length) | |
| 273 printf ("%s:record size mismatch %lu bytes overread\n", | |
| 274 filename, actual_length - length); | |
| 275 else if (length > actual_length) | |
| 276 printf ("%s:record size mismatch %lu bytes unread\n", | |
| 277 filename, length - actual_length); | |
| 278 } | |
| 279 gcov_sync (base, length); | |
| 280 if ((error = gcov_is_error ())) | |
| 281 { | |
| 282 printf (error < 0 ? "%s:counter overflow at %lu\n" : | |
| 283 "%s:read error at %lu\n", filename, | |
| 284 (long unsigned) gcov_position ()); | |
| 285 break; | |
| 286 } | |
| 287 } | |
| 288 gcov_close (); | |
| 289 } | |
| 290 | |
| 291 static void | |
| 292 tag_function (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 293 unsigned tag ATTRIBUTE_UNUSED, unsigned length, |
| 294 unsigned depth ATTRIBUTE_UNUSED) | |
| 0 | 295 { |
| 296 unsigned long pos = gcov_position (); | |
| 297 | |
| 111 | 298 if (!length) |
| 299 printf (" placeholder"); | |
| 300 else | |
| 0 | 301 { |
| 111 | 302 printf (" ident=%u", gcov_read_unsigned ()); |
| 303 printf (", lineno_checksum=0x%08x", gcov_read_unsigned ()); | |
| 304 printf (", cfg_checksum=0x%08x", gcov_read_unsigned ()); | |
| 0 | 305 |
| 111 | 306 if (gcov_position () - pos < length) |
| 307 { | |
| 308 const char *name; | |
| 309 | |
| 310 name = gcov_read_string (); | |
| 311 printf (", `%s'", name ? name : "NULL"); | |
| 131 | 312 unsigned artificial = gcov_read_unsigned (); |
| 111 | 313 name = gcov_read_string (); |
| 314 printf (" %s", name ? name : "NULL"); | |
| 131 | 315 unsigned line_start = gcov_read_unsigned (); |
| 316 unsigned column_start = gcov_read_unsigned (); | |
| 317 unsigned line_end = gcov_read_unsigned (); | |
| 145 | 318 unsigned column_end = gcov_read_unsigned (); |
| 319 printf (":%u:%u-%u:%u", line_start, column_start, | |
| 320 line_end, column_end); | |
| 131 | 321 if (artificial) |
| 322 printf (", artificial"); | |
| 111 | 323 } |
| 0 | 324 } |
| 325 } | |
| 326 | |
| 327 static void | |
| 328 tag_blocks (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 329 unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED, |
| 330 unsigned depth ATTRIBUTE_UNUSED) | |
| 0 | 331 { |
| 111 | 332 printf (" %u blocks", gcov_read_unsigned ()); |
| 0 | 333 } |
| 334 | |
| 335 static void | |
| 336 tag_arcs (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 337 unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED, |
| 338 unsigned depth) | |
| 0 | 339 { |
| 340 unsigned n_arcs = GCOV_TAG_ARCS_NUM (length); | |
| 341 | |
| 342 printf (" %u arcs", n_arcs); | |
| 343 if (flag_dump_contents) | |
| 344 { | |
| 345 unsigned ix; | |
| 346 unsigned blockno = gcov_read_unsigned (); | |
| 347 | |
| 348 for (ix = 0; ix != n_arcs; ix++) | |
| 349 { | |
| 350 unsigned dst, flags; | |
| 351 | |
| 352 if (!(ix & 3)) | |
| 353 { | |
| 354 printf ("\n"); | |
| 111 | 355 print_prefix (filename, depth, gcov_position ()); |
| 356 printf (VALUE_PADDING_PREFIX "block %u:", blockno); | |
| 0 | 357 } |
| 358 dst = gcov_read_unsigned (); | |
| 359 flags = gcov_read_unsigned (); | |
| 360 printf (" %u:%04x", dst, flags); | |
| 111 | 361 if (flags) |
| 362 { | |
| 363 char c = '('; | |
| 364 | |
| 365 if (flags & GCOV_ARC_ON_TREE) | |
| 366 printf ("%ctree", c), c = ','; | |
| 367 if (flags & GCOV_ARC_FAKE) | |
| 368 printf ("%cfake", c), c = ','; | |
| 369 if (flags & GCOV_ARC_FALLTHROUGH) | |
| 370 printf ("%cfall", c), c = ','; | |
| 371 printf (")"); | |
| 372 } | |
| 0 | 373 } |
| 374 } | |
| 375 } | |
| 376 | |
| 377 static void | |
| 378 tag_lines (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 379 unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED, |
| 380 unsigned depth) | |
| 0 | 381 { |
| 382 if (flag_dump_contents) | |
| 383 { | |
| 384 unsigned blockno = gcov_read_unsigned (); | |
| 385 char const *sep = NULL; | |
| 386 | |
| 387 while (1) | |
| 388 { | |
| 389 gcov_position_t position = gcov_position (); | |
| 390 const char *source = NULL; | |
| 391 unsigned lineno = gcov_read_unsigned (); | |
| 392 | |
| 393 if (!lineno) | |
| 394 { | |
| 395 source = gcov_read_string (); | |
| 396 if (!source) | |
| 397 break; | |
| 398 sep = NULL; | |
| 399 } | |
| 400 | |
| 401 if (!sep) | |
| 402 { | |
| 403 printf ("\n"); | |
| 111 | 404 print_prefix (filename, depth, position); |
| 405 printf (VALUE_PADDING_PREFIX "block %u:", blockno); | |
| 0 | 406 sep = ""; |
| 407 } | |
| 408 if (lineno) | |
| 409 { | |
| 410 printf ("%s%u", sep, lineno); | |
| 411 sep = ", "; | |
| 412 } | |
| 413 else | |
| 414 { | |
| 415 printf ("%s`%s'", sep, source); | |
| 416 sep = ":"; | |
| 417 } | |
| 418 } | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 static void | |
| 423 tag_counters (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 424 unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED, |
| 425 unsigned depth) | |
| 0 | 426 { |
| 111 | 427 #define DEF_GCOV_COUNTER(COUNTER, NAME, MERGE_FN) NAME, |
| 428 static const char *const counter_names[] = { | |
| 429 #include "gcov-counter.def" | |
| 430 }; | |
| 431 #undef DEF_GCOV_COUNTER | |
| 0 | 432 unsigned n_counts = GCOV_TAG_COUNTER_NUM (length); |
| 433 | |
| 434 printf (" %s %u counts", | |
| 435 counter_names[GCOV_COUNTER_FOR_TAG (tag)], n_counts); | |
| 436 if (flag_dump_contents) | |
| 437 { | |
| 438 unsigned ix; | |
| 439 | |
| 440 for (ix = 0; ix != n_counts; ix++) | |
| 441 { | |
| 442 gcov_type count; | |
| 443 | |
| 444 if (!(ix & 7)) | |
| 445 { | |
| 446 printf ("\n"); | |
| 111 | 447 print_prefix (filename, depth, gcov_position ()); |
| 448 printf (VALUE_PADDING_PREFIX VALUE_PREFIX, ix); | |
| 0 | 449 } |
| 450 | |
| 451 count = gcov_read_counter (); | |
| 111 | 452 printf ("%" PRId64 " ", count); |
| 0 | 453 } |
| 454 } | |
| 455 } | |
| 456 | |
| 457 static void | |
| 458 tag_summary (const char *filename ATTRIBUTE_UNUSED, | |
| 111 | 459 unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED, |
| 131 | 460 unsigned depth ATTRIBUTE_UNUSED) |
| 0 | 461 { |
| 131 | 462 gcov_summary summary; |
| 0 | 463 gcov_read_summary (&summary); |
| 131 | 464 printf (" runs=%d, sum_max=%" PRId64, |
| 465 summary.runs, summary.sum_max); | |
| 0 | 466 } |