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glibc/malloc/memusagestat.c

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/* Generate graphic from memory profiling data.
Copyright (C) 1998-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
This program 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; version 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, see <https://www.gnu.org/licenses/>. */
#define _FILE_OFFSET_BITS 64
#include <argp.h>
#include <assert.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <getopt.h>
#include <inttypes.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <gd.h>
#include <gdfontl.h>
#include <gdfonts.h>
#include "../version.h"
#define PACKAGE _libc_intl_domainname
/* Default size of the generated image. */
#define XSIZE 800
#define YSIZE 600
#ifndef N_
# define N_(Arg) Arg
#endif
/* Definitions of arguments for argp functions. */
static const struct argp_option options[] =
{
{ "output", 'o', N_ ("FILE"), 0, N_ ("Name output file") },
{ "string", 's', N_ ("STRING"), 0, N_ ("Title string used in output graphic") },
{ "time", 't', NULL, 0, N_ ("\
Generate output linear to time (default is linear to number of function calls)\
") },
{ "total", 'T', NULL, 0,
N_ ("Also draw graph for total memory consumption") },
{ "x-size", 'x', N_ ("VALUE"), 0,
N_ ("Make output graphic VALUE pixels wide") },
{ "y-size", 'y', "VALUE", 0, N_ ("Make output graphic VALUE pixels high") },
{ NULL, 0, NULL, 0, NULL }
};
/* Short description of program. */
static const char doc[] = N_ ("Generate graphic from memory profiling data");
/* Strings for arguments in help texts. */
static const char args_doc[] = N_ ("DATAFILE [OUTFILE]");
/* Prototype for option handler. */
static error_t parse_opt (int key, char *arg, struct argp_state *state);
/* Function to print some extra text in the help message. */
static char *more_help (int key, const char *text, void *input);
/* Name and version of program. */
static void print_version (FILE *stream, struct argp_state *state);
void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
/* Data structure to communicate with argp functions. */
static struct argp argp =
{
options, parse_opt, args_doc, doc, NULL, more_help
};
struct entry
{
uint64_t heap;
uint64_t stack;
uint32_t time_low;
uint32_t time_high;
};
/* Size of the image. */
static size_t xsize;
static size_t ysize;
/* Name of the output file. */
static char *outname;
/* Title string for the graphic. */
static const char *string;
/* Nonzero if graph should be generated linear in time. */
static int time_based;
/* Nonzero if graph to display total use of memory should be drawn as well. */
static int also_total = 0;
int
main (int argc, char *argv[])
{
int remaining;
const char *inname;
gdImagePtr im_out;
int grey, blue, red, green, yellow, black;
int fd;
struct stat st;
size_t maxsize_heap;
size_t maxsize_stack;
size_t maxsize_total;
uint64_t total;
uint64_t cnt, cnt2;
FILE *outfile;
char buf[30];
size_t last_heap;
size_t last_stack;
size_t last_total;
struct entry headent[2];
uint64_t start_time;
uint64_t end_time;
uint64_t total_time;
const char *heap_format, *stack_format;
int heap_scale, stack_scale, line;
outname = NULL;
xsize = XSIZE;
ysize = YSIZE;
string = NULL;
/* Parse and process arguments. */
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
if (remaining >= argc || remaining + 2 < argc)
{
argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
program_invocation_short_name);
exit (1);
}
inname = argv[remaining++];
if (remaining < argc)
outname = argv[remaining];
else if (outname == NULL)
{
size_t len = strlen (inname);
outname = alloca (len + 5);
stpcpy (stpcpy (outname, inname), ".png");
}
/* Open for read/write since we try to repair the file in case the
application hasn't terminated cleanly. */
fd = open (inname, O_RDWR);
if (fd == -1)
error (EXIT_FAILURE, errno, "cannot open input file");
if (fstat (fd, &st) != 0)
{
close (fd);
error (EXIT_FAILURE, errno, "cannot get size of input file");
}
/* Test whether the file contains only full records. */
if ((st.st_size % sizeof (struct entry)) != 0
/* The file must at least contain the two administrative records. */
|| st.st_size < 2 * sizeof (struct entry))
{
close (fd);
error (EXIT_FAILURE, 0, "input file has incorrect size");
}
/* Compute number of data entries. */
total = st.st_size / sizeof (struct entry) - 2;
/* Read the administrative information. */
read (fd, headent, sizeof (headent));
maxsize_heap = headent[1].heap;
maxsize_stack = headent[1].stack;
maxsize_total = headent[0].stack;
if (maxsize_heap == 0 && maxsize_stack == 0)
{
/* The program aborted before memusage was able to write the
information about the maximum heap and stack use. Repair
the file now. */
struct entry next;
while (1)
{
if (read (fd, &next, sizeof (next)) == 0)
break;
if (next.heap > maxsize_heap)
maxsize_heap = next.heap;
if (next.stack > maxsize_stack)
maxsize_stack = next.stack;
if (maxsize_heap + maxsize_stack > maxsize_total)
maxsize_total = maxsize_heap + maxsize_stack;
}
headent[0].stack = maxsize_total;
headent[1].heap = maxsize_heap;
headent[1].stack = maxsize_stack;
headent[1].time_low = next.time_low;
headent[1].time_high = next.time_high;
/* Write the computed values in the file. */
lseek (fd, 0, SEEK_SET);
write (fd, headent, 2 * sizeof (struct entry));
}
if (also_total)
{
/* We use one scale and since we also draw the total amount of
memory used we have to adapt the maximum. */
maxsize_heap = maxsize_total;
maxsize_stack = maxsize_total;
}
start_time = ((uint64_t) headent[0].time_high) << 32 | headent[0].time_low;
end_time = ((uint64_t) headent[1].time_high) << 32 | headent[1].time_low;
total_time = end_time - start_time;
if (xsize < 100)
xsize = 100;
if (ysize < 80)
ysize = 80;
/* Create output image with the specified size. */
im_out = gdImageCreate (xsize, ysize);
/* First color allocated is background. */
grey = gdImageColorAllocate (im_out, 224, 224, 224);
/* Set transparent color. */
gdImageColorTransparent (im_out, grey);
/* These are all the other colors we need (in the moment). */
red = gdImageColorAllocate (im_out, 255, 0, 0);
green = gdImageColorAllocate (im_out, 0, 130, 0);
blue = gdImageColorAllocate (im_out, 0, 0, 255);
yellow = gdImageColorAllocate (im_out, 154, 205, 50);
black = gdImageColorAllocate (im_out, 0, 0, 0);
gdImageRectangle (im_out, 40, 20, xsize - 40, ysize - 20, blue);
if (maxsize_heap < 1024)
{
heap_format = "%Zu";
heap_scale = 1;
}
else if (maxsize_heap < 1024 * 1024 * 100)
{
heap_format = "%Zuk";
heap_scale = 1024;
}
else
{
heap_format = "%ZuM";
heap_scale = 1024 * 1024;
}
if (maxsize_stack < 1024)
{
stack_format = "%Zu";
stack_scale = 1;
}
else if (maxsize_stack < 1024 * 1024 * 100)
{
stack_format = "%Zuk";
stack_scale = 1024;
}
else
{
stack_format = "%ZuM";
stack_scale = 1024 * 1024;
}
gdImageString (im_out, gdFontSmall, 38, ysize - 14, (unsigned char *) "0",
blue);
snprintf (buf, sizeof (buf), heap_format, 0);
gdImageString (im_out, gdFontSmall, maxsize_heap < 1024 ? 32 : 26,
ysize - 26, (unsigned char *) buf, red);
snprintf (buf, sizeof (buf), stack_format, 0);
gdImageString (im_out, gdFontSmall, xsize - 37, ysize - 26,
(unsigned char *) buf, green);
if (string != NULL)
gdImageString (im_out, gdFontLarge, (xsize - strlen (string) * 8) / 2,
2, (unsigned char *) string, green);
gdImageStringUp (im_out, gdFontSmall, 1, ysize / 2 - 10,
(unsigned char *) "allocated", red);
gdImageStringUp (im_out, gdFontSmall, 11, ysize / 2 - 10,
(unsigned char *) "memory", red);
gdImageStringUp (im_out, gdFontSmall, xsize - 39, ysize / 2 - 10,
(unsigned char *) "used", green);
gdImageStringUp (im_out, gdFontSmall, xsize - 27, ysize / 2 - 10,
(unsigned char *) "stack", green);
snprintf (buf, sizeof (buf), heap_format, maxsize_heap / heap_scale);
gdImageString (im_out, gdFontSmall, 39 - strlen (buf) * 6, 14,
(unsigned char *) buf, red);
snprintf (buf, sizeof (buf), stack_format, maxsize_stack / stack_scale);
gdImageString (im_out, gdFontSmall, xsize - 37, 14,
(unsigned char *) buf, green);
for (line = 1; line <= 3; ++line)
{
if (maxsize_heap > 0)
{
cnt = (((ysize - 40) * (maxsize_heap / 4 * line / heap_scale))
/ (maxsize_heap / heap_scale));
gdImageDashedLine (im_out, 40, ysize - 20 - cnt, xsize - 40,
ysize - 20 - cnt, red);
snprintf (buf, sizeof (buf), heap_format,
maxsize_heap / 4 * line / heap_scale);
gdImageString (im_out, gdFontSmall, 39 - strlen (buf) * 6,
ysize - 26 - cnt, (unsigned char *) buf, red);
}
else
cnt = 0;
if (maxsize_stack > 0)
cnt2 = (((ysize - 40) * (maxsize_stack / 4 * line / stack_scale))
/ (maxsize_stack / stack_scale));
else
cnt2 = 0;
if (cnt != cnt2)
gdImageDashedLine (im_out, 40, ysize - 20 - cnt2, xsize - 40,
ysize - 20 - cnt2, green);
snprintf (buf, sizeof (buf), stack_format,
maxsize_stack / 4 * line / stack_scale);
gdImageString (im_out, gdFontSmall, xsize - 37, ysize - 26 - cnt2,
(unsigned char *) buf, green);
}
snprintf (buf, sizeof (buf), "%llu", (unsigned long long) total);
gdImageString (im_out, gdFontSmall, xsize - 50, ysize - 14,
(unsigned char *) buf, blue);
if (!time_based)
{
uint64_t previously = start_time;
gdImageString (im_out, gdFontSmall, 40 + (xsize - 32 * 6 - 80) / 2,
ysize - 12,
(unsigned char *) "# memory handling function calls",
blue);
last_stack = last_heap = last_total = ysize - 20;
for (cnt = 1; cnt <= total; ++cnt)
{
struct entry entry;
size_t new[2];
uint64_t now;
read (fd, &entry, sizeof (entry));
now = ((uint64_t) entry.time_high) << 32 | entry.time_low;
if ((((previously - start_time) * 100) / total_time) % 10 < 5)
gdImageFilledRectangle (im_out,
40 + ((cnt - 1) * (xsize - 80)) / total,
ysize - 19,
39 + (cnt * (xsize - 80)) / total,
ysize - 14, yellow);
previously = now;
if (also_total && maxsize_heap > 0)
{
size_t new3;
new3 = (ysize - 20) - ((((unsigned long long int) (ysize - 40))
* (entry.heap + entry.stack))
/ maxsize_heap);
gdImageLine (im_out, 40 + ((xsize - 80) * (cnt - 1)) / total,
last_total,
40 + ((xsize - 80) * cnt) / total, new3,
black);
last_total = new3;
}
if (maxsize_heap > 0)
{
new[0] = ((ysize - 20)
- ((((unsigned long long int) (ysize - 40))
* entry.heap) / maxsize_heap));
gdImageLine (im_out, 40 + ((xsize - 80) * (cnt - 1)) / total,
last_heap, 40 + ((xsize - 80) * cnt) / total,
new[0], red);
last_heap = new[0];
}
if (maxsize_stack > 0)
{
new[1] = ((ysize - 20)
- ((((unsigned long long int) (ysize - 40))
* entry.stack) / maxsize_stack));
gdImageLine (im_out, 40 + ((xsize - 80) * (cnt - 1)) / total,
last_stack, 40 + ((xsize - 80) * cnt) / total,
new[1], green);
last_stack = new[1];
}
}
cnt = 0;
while (cnt < total)
{
gdImageLine (im_out, 40 + ((xsize - 80) * cnt) / total, ysize - 20,
40 + ((xsize - 80) * cnt) / total, ysize - 15, blue);
cnt += MAX (1, total / 20);
}
gdImageLine (im_out, xsize - 40, ysize - 20, xsize - 40, ysize - 15,
blue);
}
else
{
uint64_t next_tick = MAX (1, total / 20);
size_t last_xpos = 40;
gdImageString (im_out, gdFontSmall, 40 + (xsize - 39 * 6 - 80) / 2,
ysize - 12,
(unsigned char *) " \
# memory handling function calls / time", blue);
for (cnt = 0; cnt < 20; cnt += 2)
gdImageFilledRectangle (im_out,
40 + (cnt * (xsize - 80)) / 20, ysize - 19,
39 + ((cnt + 1) * (xsize - 80)) / 20,
ysize - 14, yellow);
last_stack = last_heap = last_total = ysize - 20;
for (cnt = 1; cnt <= total; ++cnt)
{
struct entry entry;
size_t new[2];
size_t xpos;
uint64_t now;
read (fd, &entry, sizeof (entry));
now = ((uint64_t) entry.time_high) << 32 | entry.time_low;
xpos = 40 + ((xsize - 80) * (now - start_time)) / total_time;
if (cnt == next_tick)
{
gdImageLine (im_out, xpos, ysize - 20, xpos, ysize - 15, blue);
next_tick += MAX (1, total / 20);
}
if (also_total && maxsize_heap > 0)
{
size_t new3;
new3 = (ysize - 20) - ((((unsigned long long int) (ysize - 40))
* (entry.heap + entry.stack))
/ maxsize_heap);
gdImageLine (im_out, last_xpos, last_total, xpos, new3, black);
last_total = new3;
}
if (maxsize_heap > 0)
{
new[0] = ((ysize - 20)
- ((((unsigned long long int) (ysize - 40))
* entry.heap) / maxsize_heap));
gdImageLine (im_out, last_xpos, last_heap, xpos, new[0], red);
last_heap = new[0];
}
if (maxsize_stack > 0)
{
new[1] = ((ysize - 20)
- ((((unsigned long long int) (ysize - 40))
* entry.stack) / maxsize_stack));
gdImageLine (im_out, last_xpos, last_stack, xpos, new[1],
green);
last_stack = new[1];
}
last_xpos = xpos;
}
}
/* Write out the result. */
outfile = fopen (outname, "w");
if (outfile == NULL)
error (EXIT_FAILURE, errno, "cannot open output file");
gdImagePng (im_out, outfile);
fclose (outfile);
gdImageDestroy (im_out);
return 0;
}
/* Handle program arguments. */
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case 'o':
outname = arg;
break;
case 's':
string = arg;
break;
case 't':
time_based = 1;
break;
case 'T':
also_total = 1;
break;
case 'x':
xsize = atoi (arg);
if (xsize == 0)
xsize = XSIZE;
break;
case 'y':
ysize = atoi (arg);
if (ysize == 0)
ysize = XSIZE;
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static char *
more_help (int key, const char *text, void *input)
{
char *tp;
switch (key)
{
case ARGP_KEY_HELP_EXTRA:
/* We print some extra information. */
if (asprintf (&tp, gettext ("\
For bug reporting instructions, please see:\n\
%s.\n"), REPORT_BUGS_TO) < 0)
return NULL;
return tp;
default:
break;
}
return (char *) text;
}
/* Print the version information. */
static void
print_version (FILE *stream, struct argp_state *state)
{
fprintf (stream, "memusagestat %s%s\n", PKGVERSION, VERSION);
fprintf (stream, gettext ("\
Copyright (C) %s Free Software Foundation, Inc.\n\
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\
"), "2020");
fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
}
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