1 /* Dump a gcov file, for debugging use.
2 Copyright (C) 2002 Free Software Foundation, Inc.
3 Contributed by Nathan Sidwell <nathan@codesourcery.com>
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 2, or (at your option)
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.
15 You should have received a copy of the GNU General Public License
16 along with Gcov; see the file COPYING. If not, write to
17 the Free Software Foundation, 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
22 #include "coretypes.h"
30 static void dump_file PARAMS ((const char *));
31 static void print_prefix PARAMS ((const char *, unsigned));
32 static void print_usage PARAMS ((void));
33 static void print_version PARAMS ((void));
34 static void tag_function PARAMS ((const char *, unsigned, unsigned));
35 static void tag_blocks PARAMS ((const char *, unsigned, unsigned));
36 static void tag_arcs PARAMS ((const char *, unsigned, unsigned));
37 static void tag_lines PARAMS ((const char *, unsigned, unsigned));
38 static void tag_counters PARAMS ((const char *, unsigned, unsigned));
39 static void tag_summary PARAMS ((const char *, unsigned, unsigned));
40 extern int main PARAMS ((int, char **));
42 typedef struct tag_format
46 void (*proc) (const char *, unsigned, unsigned);
49 static int flag_dump_contents = 0;
51 static const struct option options[] =
53 { "help", no_argument, NULL, 'h' },
54 { "version", no_argument, NULL, 'v' },
55 { "long", no_argument, NULL, 'l' },
58 static const tag_format_t tag_table[] =
62 {0, "COUNTERS", tag_counters},
63 {GCOV_TAG_FUNCTION, "FUNCTION", tag_function},
64 {GCOV_TAG_BLOCKS, "BLOCKS", tag_blocks},
65 {GCOV_TAG_ARCS, "ARCS", tag_arcs},
66 {GCOV_TAG_LINES, "LINES", tag_lines},
67 {GCOV_TAG_OBJECT_SUMMARY, "OBJECT_SUMMARY", tag_summary},
68 {GCOV_TAG_PROGRAM_SUMMARY, "PROGRAM_SUMMARY", tag_summary},
73 int argc ATTRIBUTE_UNUSED;
78 while ((opt = getopt_long (argc, argv, "hlv", options, NULL)) != -1)
89 flag_dump_contents = 1;
92 fprintf (stderr, "unknown flag `%c'\n", opt);
97 dump_file (argv[optind++]);
104 printf ("Usage: gcov-dump [OPTION] ... gcovfiles\n");
105 printf ("Print coverage file contents\n");
106 printf (" -h, --help Print this help\n");
107 printf (" -v, --version Print version number\n");
108 printf (" -l, --long Dump record contents too\n");
115 unsigned version = GCOV_VERSION;
118 for (ix = 4; ix--; version >>= 8)
120 printf ("gcov %.4s (GCC %s)\n", v, version_string);
121 printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
122 printf ("This is free software; see the source for copying conditions. There is NO\n\
123 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
127 print_prefix (filename, depth)
128 const char *filename;
131 static const char prefix[] = " ";
133 printf ("%s:%.*s", filename, (int) depth, prefix);
138 const char *filename;
143 if (!gcov_open (filename, 1))
145 fprintf (stderr, "%s:cannot open\n", filename);
151 unsigned magic = gcov_read_unsigned ();
152 unsigned version = gcov_read_unsigned ();
153 const char *type = NULL;
154 char e[4], v[4], m[4];
155 unsigned expected = GCOV_VERSION;
157 int different = version != GCOV_VERSION;
159 if (magic == GCOV_DATA_MAGIC)
161 else if (magic == GCOV_GRAPH_MAGIC)
165 printf ("%s:not a gcov file\n", filename);
169 for (ix = 4; ix--; expected >>= 8, version >>= 8, magic >>= 8)
176 printf ("%s:%s:magic `%.4s':version `%.4s'\n", filename, type, m, v);
178 printf ("%s:warning:current version is `%.4s'\n", filename, e);
181 while (!gcov_is_eof ())
183 unsigned tag = gcov_read_unsigned ();
184 unsigned length = gcov_read_unsigned ();
185 unsigned long base = gcov_position ();
186 tag_format_t const *format;
194 unsigned mask = GCOV_TAG_MASK (tag) >> 1;
196 for (tag_depth = 4; mask; mask >>= 8)
198 if ((mask & 0xff) != 0xff)
200 printf ("%s:tag `%08x' is invalid\n", filename, tag);
206 for (format = tag_table; format->name; format++)
207 if (format->tag == tag)
209 format = &tag_table[GCOV_TAG_IS_COUNTER (tag) ? 2 : 1];
213 if (depth && depth < tag_depth)
215 if (!GCOV_TAG_IS_SUBTAG (tags[depth - 1], tag))
216 printf ("%s:tag `%08x' is incorrectly nested\n",
220 tags[depth - 1] = tag;
223 print_prefix (filename, tag_depth);
224 printf ("%08x:%4u:%s", tag, length, format->name);
226 (*format->proc) (filename, tag, length);
229 if (flag_dump_contents && format->proc)
231 unsigned long actual_length = gcov_position () - base;
233 if (actual_length > length)
234 printf ("%s:record size mismatch %lu bytes overread\n",
235 filename, actual_length - length);
236 else if (length > actual_length)
237 printf ("%s:record size mismatch %lu bytes unread\n",
238 filename, length - actual_length);
240 gcov_sync (base, length);
241 if ((error = gcov_is_error ()))
243 printf (error < 0 ? "%s:counter overflow at %lu\n" :
244 "%s:read error at %lu\n", filename,
245 (long unsigned) gcov_position ());
253 tag_function (filename, tag, length)
254 const char *filename ATTRIBUTE_UNUSED;
255 unsigned tag ATTRIBUTE_UNUSED;
256 unsigned length ATTRIBUTE_UNUSED;
258 unsigned long pos = gcov_position ();
260 printf (" ident=%u", gcov_read_unsigned ());
261 printf (", checksum=0x%08x", gcov_read_unsigned ());
263 if (gcov_position () - pos < length)
267 name = gcov_read_string ();
268 printf (", `%s'", name ? name : "NULL");
269 name = gcov_read_string ();
270 printf (" %s", name ? name : "NULL");
271 printf (":%u", gcov_read_unsigned ());
276 tag_blocks (filename, tag, length)
277 const char *filename ATTRIBUTE_UNUSED;
278 unsigned tag ATTRIBUTE_UNUSED;
279 unsigned length ATTRIBUTE_UNUSED;
281 unsigned n_blocks = length / 4;
283 printf (" %u blocks", n_blocks);
285 if (flag_dump_contents)
289 for (ix = 0; ix != n_blocks; ix++)
292 printf ("\n%s:\t\t%u", filename, ix);
293 printf (" %04x", gcov_read_unsigned ());
299 tag_arcs (filename, tag, length)
300 const char *filename ATTRIBUTE_UNUSED;
301 unsigned tag ATTRIBUTE_UNUSED;
302 unsigned length ATTRIBUTE_UNUSED;
304 unsigned n_arcs = (length - 4) / 8;
306 printf (" %u arcs", n_arcs);
307 if (flag_dump_contents)
310 unsigned blockno = gcov_read_unsigned ();
312 for (ix = 0; ix != n_arcs; ix++)
314 unsigned dst = gcov_read_unsigned ();
315 unsigned flags = gcov_read_unsigned ();
318 printf ("\n%s:\tblock %u:", filename, blockno);
319 printf (" %u:%04x", dst, flags);
325 tag_lines (filename, tag, length)
326 const char *filename ATTRIBUTE_UNUSED;
327 unsigned tag ATTRIBUTE_UNUSED;
328 unsigned length ATTRIBUTE_UNUSED;
330 if (flag_dump_contents)
332 unsigned blockno = gcov_read_unsigned ();
333 char const *sep = NULL;
337 const char *source = NULL;
338 unsigned lineno = gcov_read_unsigned ();
342 source = gcov_read_string ();
350 printf ("\n%s:\tblock %u:", filename, blockno);
355 printf ("%s%u", sep, lineno);
360 printf ("%s`%s'", sep, source);
368 tag_counters (filename, tag, length)
369 const char *filename ATTRIBUTE_UNUSED;
370 unsigned tag ATTRIBUTE_UNUSED;
371 unsigned length ATTRIBUTE_UNUSED;
373 static const char *const counter_names[] = GCOV_COUNTER_NAMES;
374 unsigned n_counts = length / 8;
376 printf (" %s %u counts",
377 counter_names[GCOV_COUNTER_FOR_TAG (tag)], n_counts);
378 if (flag_dump_contents)
382 for (ix = 0; ix != n_counts; ix++)
384 gcov_type count = gcov_read_counter ();
387 printf ("\n%s:\t\t%u", filename, ix);
389 printf (HOST_WIDEST_INT_PRINT_DEC, count);
395 tag_summary (filename, tag, length)
396 const char *filename ATTRIBUTE_UNUSED;
397 unsigned tag ATTRIBUTE_UNUSED;
398 unsigned length ATTRIBUTE_UNUSED;
400 struct gcov_summary summary;
403 gcov_read_summary (&summary);
404 printf (" checksum=0x%08x", summary.checksum);
406 for (ix = 0; ix != GCOV_COUNTERS; ix++)
408 printf ("\n%sL\t\tcounts=%u, runs=%u", filename,
409 summary.ctrs[ix].num, summary.ctrs[ix].runs);
411 printf (", sum_all=" HOST_WIDEST_INT_PRINT_DEC,
412 (HOST_WIDEST_INT)summary.ctrs[ix].sum_all);
413 printf (", run_max=" HOST_WIDEST_INT_PRINT_DEC,
414 (HOST_WIDEST_INT)summary.ctrs[ix].run_max);
415 printf (", sum_max=" HOST_WIDEST_INT_PRINT_DEC,
416 (HOST_WIDEST_INT)summary.ctrs[ix].sum_max);