mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
438 lines
11 KiB
C
438 lines
11 KiB
C
/* Dump a gcov file, for debugging use.
|
|
Copyright (C) 2002, 2003, 2004, 2005, 2006 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)
|
|
any later version.
|
|
|
|
Gcov is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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, 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
#include "config.h"
|
|
#include "system.h"
|
|
#include "coretypes.h"
|
|
#include "tm.h"
|
|
#include "version.h"
|
|
#include <getopt.h>
|
|
#define IN_GCOV (-1)
|
|
#include "gcov-io.h"
|
|
#include "gcov-io.c"
|
|
|
|
static void dump_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, unsigned);
|
|
static void tag_blocks (const char *, unsigned, unsigned);
|
|
static void tag_arcs (const char *, unsigned, unsigned);
|
|
static void tag_lines (const char *, unsigned, unsigned);
|
|
static void tag_counters (const char *, unsigned, unsigned);
|
|
static void tag_summary (const char *, unsigned, unsigned);
|
|
extern int main (int, char **);
|
|
|
|
typedef struct tag_format
|
|
{
|
|
unsigned tag;
|
|
char const *name;
|
|
void (*proc) (const char *, unsigned, unsigned);
|
|
} tag_format_t;
|
|
|
|
static int flag_dump_contents = 0;
|
|
static int flag_dump_positions = 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 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_OBJECT_SUMMARY, "OBJECT_SUMMARY", tag_summary},
|
|
{GCOV_TAG_PROGRAM_SUMMARY, "PROGRAM_SUMMARY", tag_summary},
|
|
{0, NULL, NULL}
|
|
};
|
|
|
|
int
|
|
main (int argc ATTRIBUTE_UNUSED, char **argv)
|
|
{
|
|
int opt;
|
|
|
|
/* Unlock the stdio streams. */
|
|
unlock_std_streams ();
|
|
|
|
while ((opt = getopt_long (argc, argv, "hlpv", options, NULL)) != -1)
|
|
{
|
|
switch (opt)
|
|
{
|
|
case 'h':
|
|
print_usage ();
|
|
break;
|
|
case 'v':
|
|
print_version ();
|
|
break;
|
|
case 'l':
|
|
flag_dump_contents = 1;
|
|
break;
|
|
case 'p':
|
|
flag_dump_positions = 1;
|
|
break;
|
|
default:
|
|
fprintf (stderr, "unknown flag `%c'\n", opt);
|
|
}
|
|
}
|
|
|
|
while (argv[optind])
|
|
dump_file (argv[optind++]);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
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");
|
|
}
|
|
|
|
static void
|
|
print_version (void)
|
|
{
|
|
printf ("gcov-dump (GCC) %s\n", version_string);
|
|
printf ("Copyright (C) 2006 Free Software Foundation, Inc.\n");
|
|
printf ("This is free software; see the source for copying conditions.\n"
|
|
"There is NO warranty; not even for MERCHANTABILITY or \n"
|
|
"FITNESS FOR A PARTICULAR PURPOSE.\n\n");
|
|
}
|
|
|
|
static void
|
|
print_prefix (const char *filename, unsigned depth, gcov_position_t position)
|
|
{
|
|
static const char prefix[] = " ";
|
|
|
|
printf ("%s:", filename);
|
|
if (flag_dump_positions)
|
|
printf ("%lu:", (unsigned long) position);
|
|
printf ("%.*s", (int) depth, prefix);
|
|
}
|
|
|
|
static void
|
|
dump_file (const char *filename)
|
|
{
|
|
unsigned tags[4];
|
|
unsigned depth = 0;
|
|
|
|
if (!gcov_open (filename, 1))
|
|
{
|
|
fprintf (stderr, "%s:cannot open\n", filename);
|
|
return;
|
|
}
|
|
|
|
/* magic */
|
|
{
|
|
unsigned magic = gcov_read_unsigned ();
|
|
unsigned version;
|
|
const char *type = NULL;
|
|
int endianness = 0;
|
|
char m[4], v[4];
|
|
|
|
if ((endianness = gcov_magic (magic, GCOV_DATA_MAGIC)))
|
|
type = "data";
|
|
else if ((endianness = gcov_magic (magic, GCOV_NOTE_MAGIC)))
|
|
type = "note";
|
|
else
|
|
{
|
|
printf ("%s:not a gcov file\n", filename);
|
|
gcov_close ();
|
|
return;
|
|
}
|
|
version = gcov_read_unsigned ();
|
|
GCOV_UNSIGNED2STRING (v, version);
|
|
GCOV_UNSIGNED2STRING (m, magic);
|
|
|
|
printf ("%s:%s:magic `%.4s':version `%.4s'%s\n", filename, type,
|
|
m, v, endianness < 0 ? " (swapped endianness)" : "");
|
|
if (version != GCOV_VERSION)
|
|
{
|
|
char e[4];
|
|
|
|
GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
|
|
printf ("%s:warning:current version is `%.4s'\n", filename, e);
|
|
}
|
|
}
|
|
|
|
/* stamp */
|
|
{
|
|
unsigned stamp = gcov_read_unsigned ();
|
|
|
|
printf ("%s:stamp %lu\n", filename, (unsigned long)stamp);
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
gcov_position_t base, position = gcov_position ();
|
|
unsigned tag, length;
|
|
tag_format_t const *format;
|
|
unsigned tag_depth;
|
|
int error;
|
|
unsigned mask;
|
|
|
|
tag = gcov_read_unsigned ();
|
|
if (!tag)
|
|
break;
|
|
length = gcov_read_unsigned ();
|
|
base = gcov_position ();
|
|
mask = GCOV_TAG_MASK (tag) >> 1;
|
|
for (tag_depth = 4; mask; mask >>= 8)
|
|
{
|
|
if ((mask & 0xff) != 0xff)
|
|
{
|
|
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[GCOV_TAG_IS_COUNTER (tag) ? 2 : 1];
|
|
found:;
|
|
if (tag)
|
|
{
|
|
if (depth && depth < tag_depth)
|
|
{
|
|
if (!GCOV_TAG_IS_SUBTAG (tags[depth - 1], tag))
|
|
printf ("%s:tag `%08x' is incorrectly nested\n",
|
|
filename, tag);
|
|
}
|
|
depth = tag_depth;
|
|
tags[depth - 1] = tag;
|
|
}
|
|
|
|
print_prefix (filename, tag_depth, position);
|
|
printf ("%08x:%4u:%s", tag, length, format->name);
|
|
if (format->proc)
|
|
(*format->proc) (filename, tag, length);
|
|
|
|
printf ("\n");
|
|
if (flag_dump_contents && format->proc)
|
|
{
|
|
unsigned long actual_length = gcov_position () - base;
|
|
|
|
if (actual_length > length)
|
|
printf ("%s:record size mismatch %lu bytes overread\n",
|
|
filename, actual_length - length);
|
|
else if (length > actual_length)
|
|
printf ("%s:record size mismatch %lu bytes unread\n",
|
|
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;
|
|
}
|
|
}
|
|
gcov_close ();
|
|
}
|
|
|
|
static void
|
|
tag_function (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned long pos = gcov_position ();
|
|
|
|
printf (" ident=%u", gcov_read_unsigned ());
|
|
printf (", checksum=0x%08x", gcov_read_unsigned ());
|
|
|
|
if (gcov_position () - pos < length)
|
|
{
|
|
const char *name;
|
|
|
|
name = gcov_read_string ();
|
|
printf (", `%s'", name ? name : "NULL");
|
|
name = gcov_read_string ();
|
|
printf (" %s", name ? name : "NULL");
|
|
printf (":%u", gcov_read_unsigned ());
|
|
}
|
|
}
|
|
|
|
static void
|
|
tag_blocks (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned n_blocks = GCOV_TAG_BLOCKS_NUM (length);
|
|
|
|
printf (" %u blocks", n_blocks);
|
|
|
|
if (flag_dump_contents)
|
|
{
|
|
unsigned ix;
|
|
|
|
for (ix = 0; ix != n_blocks; ix++)
|
|
{
|
|
if (!(ix & 7))
|
|
{
|
|
printf ("\n");
|
|
print_prefix (filename, 0, gcov_position ());
|
|
printf ("\t\t%u", ix);
|
|
}
|
|
printf (" %04x", gcov_read_unsigned ());
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
tag_arcs (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
unsigned n_arcs = GCOV_TAG_ARCS_NUM (length);
|
|
|
|
printf (" %u arcs", n_arcs);
|
|
if (flag_dump_contents)
|
|
{
|
|
unsigned ix;
|
|
unsigned blockno = gcov_read_unsigned ();
|
|
|
|
for (ix = 0; ix != n_arcs; ix++)
|
|
{
|
|
unsigned dst, flags;
|
|
|
|
if (!(ix & 3))
|
|
{
|
|
printf ("\n");
|
|
print_prefix (filename, 0, gcov_position ());
|
|
printf ("\tblock %u:", blockno);
|
|
}
|
|
dst = gcov_read_unsigned ();
|
|
flags = gcov_read_unsigned ();
|
|
printf (" %u:%04x", dst, flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
tag_lines (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
if (flag_dump_contents)
|
|
{
|
|
unsigned blockno = gcov_read_unsigned ();
|
|
char const *sep = NULL;
|
|
|
|
while (1)
|
|
{
|
|
gcov_position_t position = gcov_position ();
|
|
const char *source = NULL;
|
|
unsigned lineno = gcov_read_unsigned ();
|
|
|
|
if (!lineno)
|
|
{
|
|
source = gcov_read_string ();
|
|
if (!source)
|
|
break;
|
|
sep = NULL;
|
|
}
|
|
|
|
if (!sep)
|
|
{
|
|
printf ("\n");
|
|
print_prefix (filename, 0, position);
|
|
printf ("\tblock %u:", blockno);
|
|
sep = "";
|
|
}
|
|
if (lineno)
|
|
{
|
|
printf ("%s%u", sep, lineno);
|
|
sep = ", ";
|
|
}
|
|
else
|
|
{
|
|
printf ("%s`%s'", sep, source);
|
|
sep = ":";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
tag_counters (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
static const char *const counter_names[] = GCOV_COUNTER_NAMES;
|
|
unsigned n_counts = GCOV_TAG_COUNTER_NUM (length);
|
|
|
|
printf (" %s %u counts",
|
|
counter_names[GCOV_COUNTER_FOR_TAG (tag)], n_counts);
|
|
if (flag_dump_contents)
|
|
{
|
|
unsigned ix;
|
|
|
|
for (ix = 0; ix != n_counts; ix++)
|
|
{
|
|
gcov_type count;
|
|
|
|
if (!(ix & 7))
|
|
{
|
|
printf ("\n");
|
|
print_prefix (filename, 0, gcov_position ());
|
|
printf ("\t\t%u", ix);
|
|
}
|
|
|
|
count = gcov_read_counter ();
|
|
printf (" ");
|
|
printf (HOST_WIDEST_INT_PRINT_DEC, count);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
tag_summary (const char *filename ATTRIBUTE_UNUSED,
|
|
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED)
|
|
{
|
|
struct gcov_summary summary;
|
|
unsigned ix;
|
|
|
|
gcov_read_summary (&summary);
|
|
printf (" checksum=0x%08x", summary.checksum);
|
|
|
|
for (ix = 0; ix != GCOV_COUNTERS; ix++)
|
|
{
|
|
printf ("\n");
|
|
print_prefix (filename, 0, 0);
|
|
printf ("\t\tcounts=%u, runs=%u",
|
|
summary.ctrs[ix].num, summary.ctrs[ix].runs);
|
|
|
|
printf (", sum_all=" HOST_WIDEST_INT_PRINT_DEC,
|
|
(HOST_WIDEST_INT)summary.ctrs[ix].sum_all);
|
|
printf (", run_max=" HOST_WIDEST_INT_PRINT_DEC,
|
|
(HOST_WIDEST_INT)summary.ctrs[ix].run_max);
|
|
printf (", sum_max=" HOST_WIDEST_INT_PRINT_DEC,
|
|
(HOST_WIDEST_INT)summary.ctrs[ix].sum_max);
|
|
}
|
|
}
|