/* Dump a gcov file, for debugging use.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
Contributed by Nathan Sidwell <nathan@codesourcery.com>
Gcov is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
Gcov is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with Gcov; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with Gcov; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "version.h"
+#include "intl.h"
+#include "diagnostic.h"
#include <getopt.h>
-typedef HOST_WIDEST_INT gcov_type;
+#define IN_GCOV (-1)
#include "gcov-io.h"
-
-static void dump_file PARAMS ((const char *));
-static void print_prefix PARAMS ((const char *, unsigned));
-static void print_usage PARAMS ((void));
-static void print_version PARAMS ((void));
-static int tag_function PARAMS ((const char *, FILE *, unsigned, unsigned));
-static int tag_blocks PARAMS ((const char *, FILE *, unsigned, unsigned));
-static int tag_arcs PARAMS ((const char *, FILE *, unsigned, unsigned));
-static int tag_lines PARAMS ((const char *, FILE *, unsigned, unsigned));
-static int tag_arc_counts PARAMS ((const char *, FILE *, unsigned, unsigned));
-static int tag_summary PARAMS ((const char *, FILE *, unsigned, unsigned));
-extern int main PARAMS ((int, char **));
+#include "gcov-io.c"
+
+static void dump_gcov_file (const char *);
+static void print_prefix (const char *, unsigned, gcov_position_t);
+static void print_usage (void);
+static void print_version (void);
+static void tag_function (const char *, unsigned, int, unsigned);
+static void tag_blocks (const char *, unsigned, int, unsigned);
+static void tag_arcs (const char *, unsigned, int, unsigned);
+static void tag_lines (const char *, unsigned, int, unsigned);
+static void tag_counters (const char *, unsigned, int, unsigned);
+static void tag_summary (const char *, unsigned, int, unsigned);
+extern int main (int, char **);
typedef struct tag_format
{
unsigned tag;
char const *name;
- int (*proc) (const char *, FILE *, unsigned, unsigned);
+ void (*proc) (const char *, unsigned, int, unsigned);
} tag_format_t;
static int flag_dump_contents = 0;
+static int flag_dump_positions = 0;
+static int flag_dump_raw = 0;
static const struct option options[] =
{
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'v' },
{ "long", no_argument, NULL, 'l' },
+ { "positions", no_argument, NULL, 'o' },
+ { 0, 0, 0, 0 }
};
-static tag_format_t tag_table[] =
+#define VALUE_PADDING_PREFIX " "
+#define VALUE_PREFIX "%2d: "
+
+static const tag_format_t tag_table[] =
{
{0, "NOP", NULL},
{0, "UNKNOWN", NULL},
+ {0, "COUNTERS", tag_counters},
{GCOV_TAG_FUNCTION, "FUNCTION", tag_function},
{GCOV_TAG_BLOCKS, "BLOCKS", tag_blocks},
{GCOV_TAG_ARCS, "ARCS", tag_arcs},
{GCOV_TAG_LINES, "LINES", tag_lines},
- {GCOV_TAG_ARC_COUNTS, "ARC_COUNTS", tag_arc_counts},
{GCOV_TAG_OBJECT_SUMMARY, "OBJECT_SUMMARY", tag_summary},
- {GCOV_TAG_PROGRAM_SUMMARY, "PROGRAM_SUMMARY", tag_summary},
- {GCOV_TAG_PLACEHOLDER_SUMMARY, "PROGRAM_PLACEHOLDER", tag_summary},
- {GCOV_TAG_INCORRECT_SUMMARY, "PROGRAM_INCORRECT", tag_summary},
{0, NULL, NULL}
};
-int main (argc, argv)
- int argc ATTRIBUTE_UNUSED;
- char **argv;
+int
+main (int argc ATTRIBUTE_UNUSED, char **argv)
{
int opt;
+ const char *p;
+
+ p = argv[0] + strlen (argv[0]);
+ while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
+ --p;
+ progname = p;
+
+ xmalloc_set_program_name (progname);
+
+ /* Unlock the stdio streams. */
+ unlock_std_streams ();
+
+ gcc_init_libintl ();
- while ((opt = getopt_long (argc, argv, "hlv", options, NULL)) != -1)
+ diagnostic_initialize (global_dc, 0);
+
+ while ((opt = getopt_long (argc, argv, "hlprvw", options, NULL)) != -1)
{
switch (opt)
{
case 'l':
flag_dump_contents = 1;
break;
+ case 'p':
+ flag_dump_positions = 1;
+ break;
+ case 'r':
+ flag_dump_raw = 1;
+ break;
default:
fprintf (stderr, "unknown flag `%c'\n", opt);
}
}
-
+
while (argv[optind])
- dump_file (argv[optind++]);
+ dump_gcov_file (argv[optind++]);
return 0;
}
static void
-print_usage ()
+print_usage (void)
{
printf ("Usage: gcov-dump [OPTION] ... gcovfiles\n");
printf ("Print coverage file contents\n");
printf (" -h, --help Print this help\n");
- printf (" -v, --version Print version number\n");
printf (" -l, --long Dump record contents too\n");
+ printf (" -p, --positions Dump record positions\n");
+ printf (" -r, --raw Print content records in raw format\n");
+ printf (" -v, --version Print version number\n");
+ printf ("\nFor bug reporting instructions, please see:\n%s.\n",
+ bug_report_url);
}
static void
-print_version ()
+print_version (void)
{
- char v[4];
- unsigned version = GCOV_VERSION;
- unsigned ix;
-
- for (ix = 4; ix--; version >>= 8)
- v[ix] = version;
- printf ("gcov %.4s (GCC %s)\n", v, version_string);
- printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
+ printf ("gcov-dump %s%s\n", pkgversion_string, version_string);
+ printf ("Copyright (C) 2020 Free Software Foundation, Inc.\n");
printf ("This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
}
static void
-print_prefix (filename, depth)
- const char *filename;
- unsigned depth;
+print_prefix (const char *filename, unsigned depth, gcov_position_t position)
{
static const char prefix[] = " ";
-
- printf ("%s:%.*s", filename, depth, prefix);
+
+ printf ("%s:", filename);
+ if (flag_dump_positions)
+ printf ("%5lu:", (unsigned long) position);
+ printf ("%.*s", (int) 2 * depth, prefix);
}
static void
-dump_file (filename)
- const char *filename;
+dump_gcov_file (const char *filename)
{
- FILE *file = fopen (filename, "rb");
unsigned tags[4];
unsigned depth = 0;
- unsigned magic, version;
- unsigned tag, length;
-
- if (!file)
+ bool is_data_type;
+
+ if (!gcov_open (filename, 1))
{
fprintf (stderr, "%s:cannot open\n", filename);
return;
}
-
- if (gcov_read_unsigned (file, &magic)
- || gcov_read_unsigned (file, &version))
- {
- read_error:;
- printf ("%s:read error at %ld\n", filename, ftell (file));
- fclose (file);
- return;
- }
/* magic */
{
- const char *type = NULL;
- char e[4], v[4], m[4];
- unsigned expected = GCOV_VERSION;
- unsigned ix;
- int different = version != GCOV_VERSION;
-
- if (magic == GCOV_DATA_MAGIC)
- type = "data";
- else if (magic == GCOV_GRAPH_MAGIC)
- type = "graph";
+ unsigned magic = gcov_read_unsigned ();
+ unsigned version;
+ int endianness = 0;
+ char m[4], v[4];
+
+ if ((endianness = gcov_magic (magic, GCOV_DATA_MAGIC)))
+ is_data_type = true;
+ else if ((endianness = gcov_magic (magic, GCOV_NOTE_MAGIC)))
+ is_data_type = false;
else
{
printf ("%s:not a gcov file\n", filename);
- fclose (file);
+ gcov_close ();
return;
}
- for (ix = 4; ix--; expected >>= 8, version >>= 8, magic >>= 8)
+ version = gcov_read_unsigned ();
+ GCOV_UNSIGNED2STRING (v, version);
+ GCOV_UNSIGNED2STRING (m, magic);
+
+ printf ("%s:%s:magic `%.4s':version `%.4s'%s\n", filename,
+ is_data_type ? "data" : "note",
+ m, v, endianness < 0 ? " (swapped endianness)" : "");
+ if (version != GCOV_VERSION)
{
- e[ix] = expected;
- v[ix] = version;
- m[ix] = magic;
+ char e[4];
+
+ GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
+ printf ("%s:warning:current version is `%.4s'\n", filename, e);
}
-
- printf ("%s:%s:magic `%.4s':version `%.4s'\n", filename, type, m, v);
- if (different)
- printf ("%s:warning:current version is `%.4s'\n", filename, e);
}
- while (!gcov_read_unsigned (file, &tag)
- && !gcov_read_unsigned (file, &length))
+ /* stamp */
+ {
+ unsigned stamp = gcov_read_unsigned ();
+
+ printf ("%s:stamp %lu\n", filename, (unsigned long)stamp);
+ }
+
+ if (!is_data_type)
{
+ printf ("%s:cwd: %s\n", filename, gcov_read_string ());
+
+ /* Support for unexecuted basic blocks. */
+ unsigned support_unexecuted_blocks = gcov_read_unsigned ();
+ if (!support_unexecuted_blocks)
+ printf ("%s: has_unexecuted_block is not supported\n", filename);
+ }
+
+ while (1)
+ {
+ gcov_position_t base, position = gcov_position ();
+ int read_length;
+ unsigned tag, length;
tag_format_t const *format;
unsigned tag_depth;
- long base, end;
-
- base = gcov_save_position (file);
-
+ int error;
+ unsigned mask;
+
+ tag = gcov_read_unsigned ();
if (!tag)
- tag_depth = depth;
- else
+ break;
+ read_length = (int)gcov_read_unsigned ();
+ length = read_length > 0 ? read_length : 0;
+ base = gcov_position ();
+ mask = GCOV_TAG_MASK (tag) >> 1;
+ for (tag_depth = 4; mask; mask >>= 8)
{
- unsigned mask = GCOV_TAG_MASK (tag) >> 1;
-
- for (tag_depth = 4; mask; mask >>= 8)
+ if ((mask & 0xff) != 0xff)
{
- if ((mask & 0xff) != 0xff)
- {
- printf ("%s:tag `%08x' is invalid\n", filename, tag);
- break;
- }
- tag_depth--;
+ printf ("%s:tag `%08x' is invalid\n", filename, tag);
+ break;
}
+ tag_depth--;
}
for (format = tag_table; format->name; format++)
if (format->tag == tag)
goto found;
- format = &tag_table[1];
+ format = &tag_table[GCOV_TAG_IS_COUNTER (tag) ? 2 : 1];
found:;
if (tag)
{
depth = tag_depth;
tags[depth - 1] = tag;
}
-
- print_prefix (filename, tag_depth);
- printf ("%08x:%4u:%s", tag, length, format->name);
+
+ print_prefix (filename, tag_depth, position);
+ printf ("%08x:%4u:%s", tag, abs (read_length), format->name);
if (format->proc)
- if ((*format->proc) (filename, file, tag, length))
- goto read_error;
+ (*format->proc) (filename, tag, read_length, depth);
+
printf ("\n");
- end = gcov_save_position (file);
- gcov_resync (file, base, length);
- if (format->proc && end != base + (long)length)
+ if (flag_dump_contents && format->proc)
{
- if (end > base + (long)length)
+ unsigned long actual_length = gcov_position () - base;
+
+ if (actual_length > length)
printf ("%s:record size mismatch %lu bytes overread\n",
- filename, (end - base) - length);
- else
+ filename, actual_length - length);
+ else if (length > actual_length)
printf ("%s:record size mismatch %lu bytes unread\n",
- filename, length - (end - base));
+ filename, length - actual_length);
+ }
+ gcov_sync (base, length);
+ if ((error = gcov_is_error ()))
+ {
+ printf (error < 0 ? "%s:counter overflow at %lu\n" :
+ "%s:read error at %lu\n", filename,
+ (long unsigned) gcov_position ());
+ break;
}
}
- if (!feof (file))
- goto read_error;
- fclose (file);
-}
-
-static int
-tag_function (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
-{
- char *name = NULL;
- unsigned checksum;
-
- if (gcov_read_string (file, &name, NULL)
- || gcov_read_unsigned (file, &checksum))
- return 1;
-
- printf (" `%s' checksum=0x%08x", name, checksum);
- free (name);
-
- return 0;
+ gcov_close ();
}
-static int
-tag_blocks (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
+static void
+tag_function (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length,
+ unsigned depth ATTRIBUTE_UNUSED)
{
- unsigned n_blocks = length / 4;
-
- printf (" %u blocks", n_blocks);
+ gcov_position_t pos = gcov_position ();
- if (flag_dump_contents)
+ if (!length)
+ printf (" placeholder");
+ else
{
- unsigned ix;
+ printf (" ident=%u", gcov_read_unsigned ());
+ printf (", lineno_checksum=0x%08x", gcov_read_unsigned ());
+ printf (", cfg_checksum=0x%08x", gcov_read_unsigned ());
- for (ix = 0; ix != n_blocks; ix++)
+ if (gcov_position () - pos < (gcov_position_t) length)
{
- unsigned flags;
- if (gcov_read_unsigned (file, &flags))
- return 1;
- if (!(ix & 7))
- printf ("\n%s:\t\t%u", filename, ix);
- printf (" %04x", flags);
+ const char *name;
+
+ name = gcov_read_string ();
+ printf (", `%s'", name ? name : "NULL");
+ unsigned artificial = gcov_read_unsigned ();
+ name = gcov_read_string ();
+ printf (" %s", name ? name : "NULL");
+ unsigned line_start = gcov_read_unsigned ();
+ unsigned column_start = gcov_read_unsigned ();
+ unsigned line_end = gcov_read_unsigned ();
+ unsigned column_end = gcov_read_unsigned ();
+ printf (":%u:%u-%u:%u", line_start, column_start,
+ line_end, column_end);
+ if (artificial)
+ printf (", artificial");
}
-
}
- else
- gcov_skip (file, n_blocks * 4);
-
- return 0;
}
-static int
-tag_arcs (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
+static void
+tag_blocks (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length ATTRIBUTE_UNUSED,
+ unsigned depth ATTRIBUTE_UNUSED)
{
- unsigned n_arcs = (length - 4) / 8;
+ printf (" %u blocks", gcov_read_unsigned ());
+}
+
+static void
+tag_arcs (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length ATTRIBUTE_UNUSED,
+ unsigned depth)
+{
+ unsigned n_arcs = GCOV_TAG_ARCS_NUM (length);
printf (" %u arcs", n_arcs);
if (flag_dump_contents)
{
unsigned ix;
- unsigned blockno;
-
- if (gcov_read_unsigned (file, &blockno))
- return 1;
+ unsigned blockno = gcov_read_unsigned ();
for (ix = 0; ix != n_arcs; ix++)
{
unsigned dst, flags;
-
- if (gcov_read_unsigned (file, &dst)
- || gcov_read_unsigned (file, &flags))
- return 1;
+
if (!(ix & 3))
- printf ("\n%s:\t\t%u:", filename, blockno);
+ {
+ printf ("\n");
+ print_prefix (filename, depth, gcov_position ());
+ printf (VALUE_PADDING_PREFIX "block %u:", blockno);
+ }
+ dst = gcov_read_unsigned ();
+ flags = gcov_read_unsigned ();
printf (" %u:%04x", dst, flags);
+ if (flags)
+ {
+ char c = '(';
+
+ if (flags & GCOV_ARC_ON_TREE)
+ printf ("%ctree", c), c = ',';
+ if (flags & GCOV_ARC_FAKE)
+ printf ("%cfake", c), c = ',';
+ if (flags & GCOV_ARC_FALLTHROUGH)
+ printf ("%cfall", c), c = ',';
+ printf (")");
+ }
}
}
- else
- gcov_skip (file, 4 + n_arcs * 8);
-
- return 0;
}
-static int
-tag_lines (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
+static void
+tag_lines (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length ATTRIBUTE_UNUSED,
+ unsigned depth)
{
if (flag_dump_contents)
{
- char *source = NULL;
- unsigned blockno;
+ unsigned blockno = gcov_read_unsigned ();
char const *sep = NULL;
- if (gcov_read_unsigned (file, &blockno))
- return 1;
-
while (1)
{
- unsigned lineno;
-
- if (gcov_read_unsigned (file, &lineno))
- {
- free (source);
- return 1;
- }
+ gcov_position_t position = gcov_position ();
+ const char *source = NULL;
+ unsigned lineno = gcov_read_unsigned ();
+
if (!lineno)
{
- if (gcov_read_string (file, &source, NULL))
- return 1;
+ source = gcov_read_string ();
if (!source)
break;
sep = NULL;
}
-
+
if (!sep)
{
- printf ("\n%s:\t\t%u:", filename, blockno);
+ printf ("\n");
+ print_prefix (filename, depth, position);
+ printf (VALUE_PADDING_PREFIX "block %u:", blockno);
sep = "";
}
if (lineno)
}
}
}
- else
- gcov_skip (file, length);
-
- return 0;
}
-static int
-tag_arc_counts (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
+static void
+tag_counters (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length ATTRIBUTE_UNUSED,
+ unsigned depth)
{
- unsigned n_counts = length / 8;
-
- printf (" %u counts", n_counts);
+#define DEF_GCOV_COUNTER(COUNTER, NAME, MERGE_FN) NAME,
+ static const char *const counter_names[] = {
+#include "gcov-counter.def"
+};
+#undef DEF_GCOV_COUNTER
+ int n_counts = GCOV_TAG_COUNTER_NUM (length);
+ bool has_zeros = n_counts < 0;
+ n_counts = abs (n_counts);
+
+ printf (" %s %u counts%s",
+ counter_names[GCOV_COUNTER_FOR_TAG (tag)], n_counts,
+ has_zeros ? " (all zero)" : "");
if (flag_dump_contents)
{
- unsigned ix;
-
- for (ix = 0; ix != n_counts; ix++)
+ for (int ix = 0; ix != n_counts; ix++)
{
gcov_type count;
-
- if (gcov_read_counter (file, &count))
- return 1;
- if (!(ix & 7))
- printf ("\n%s:\t\t%u", filename, ix);
- printf (" ");
- printf (HOST_WIDEST_INT_PRINT_DEC, count);
+
+ if (flag_dump_raw)
+ {
+ if (ix == 0)
+ printf (": ");
+ }
+ else if (!(ix & 7))
+ {
+ printf ("\n");
+ print_prefix (filename, depth, gcov_position ());
+ printf (VALUE_PADDING_PREFIX VALUE_PREFIX, ix);
+ }
+
+ count = has_zeros ? 0 : gcov_read_counter ();
+ printf ("%" PRId64 " ", count);
}
}
- else
- gcov_skip (file, n_counts * 8);
-
- return 0;
}
-static int
-tag_summary (filename, file, tag, length)
- const char *filename ATTRIBUTE_UNUSED;
- FILE *file ATTRIBUTE_UNUSED;
- unsigned tag ATTRIBUTE_UNUSED;
- unsigned length ATTRIBUTE_UNUSED;
+static void
+tag_summary (const char *filename ATTRIBUTE_UNUSED,
+ unsigned tag ATTRIBUTE_UNUSED, int length ATTRIBUTE_UNUSED,
+ unsigned depth ATTRIBUTE_UNUSED)
{
- struct gcov_summary summary;
-
- if (gcov_read_summary (file, &summary))
- return 1;
- printf (" checksum=0x%08x", summary.checksum);
-
- printf ("\n%s:\t\truns=%u, arcs=%u", filename,
- summary.runs, summary.arcs);
- printf ("\n%s:\t\tarc_sum=", filename);
- printf (HOST_WIDEST_INT_PRINT_DEC,
- (HOST_WIDEST_INT)summary.arc_sum);
- printf (", arc_max_one=");
- printf (HOST_WIDEST_INT_PRINT_DEC,
- (HOST_WIDEST_INT)summary.arc_max_one);
- printf ("\n%s:\t\tmax_sum=", filename);
- printf (HOST_WIDEST_INT_PRINT_DEC,
- (HOST_WIDEST_INT)summary.arc_max_sum);
- printf (", sum_max=");
- printf (HOST_WIDEST_INT_PRINT_DEC,
- (HOST_WIDEST_INT)summary.arc_sum_max);
- return 0;
+ gcov_summary summary;
+ gcov_read_summary (&summary);
+ printf (" runs=%d, sum_max=%" PRId64,
+ summary.runs, summary.sum_max);
}
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