glibc/debug/pcprofiledump.c
Joseph Myers 58b587c1f8 Update copyright dates not handled by scripts/update-copyrights.
I've updated copyright dates in glibc for 2017.  This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files.

Please remember to include 2017 in the dates for any new files added
in future (which means updating any existing uncommitted patches you
have that add new files to use the new copyright dates in them).

	* NEWS: Update copyright dates.
	* catgets/gencat.c (print_version): Likewise.
	* csu/version.c (banner): Likewise.
	* debug/catchsegv.sh: Likewise.
	* debug/pcprofiledump.c (print_version): Likewise.
	* debug/xtrace.sh (do_version): Likewise.
	* elf/ldconfig.c (print_version): Likewise.
	* elf/ldd.bash.in: Likewise.
	* elf/pldd.c (print_version): Likewise.
	* elf/sotruss.sh: Likewise.
	* elf/sprof.c (print_version): Likewise.
	* iconv/iconv_prog.c (print_version): Likewise.
	* iconv/iconvconfig.c (print_version): Likewise.
	* locale/programs/locale.c (print_version): Likewise.
	* locale/programs/localedef.c (print_version): Likewise.
	* login/programs/pt_chown.c (print_version): Likewise.
	* malloc/memusage.sh (do_version): Likewise.
	* malloc/memusagestat.c (print_version): Likewise.
	* malloc/mtrace.pl: Likewise.
	* manual/libc.texinfo: Likewise.
	* nptl/version.c (banner): Likewise.
	* nscd/nscd.c (print_version): Likewise.
	* nss/getent.c (print_version): Likewise.
	* nss/makedb.c (print_version): Likewise.
	* posix/getconf.c (main): Likewise.
	* scripts/test-installation.pl: Likewise.
	* sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
2017-01-01 00:26:24 +00:00

232 lines
5.7 KiB
C

/* Dump information generated by PC profiling.
Copyright (C) 1999-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* This is mainly an example. It shows how programs which want to use
the information should read the file. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <argp.h>
#include <byteswap.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <inttypes.h>
#include <libintl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include "../version.h"
#define PACKAGE _libc_intl_domainname
#ifndef _
# define _(Str) gettext (Str)
#endif
#ifndef N_
# define N_(Str) Str
#endif
/* Definitions of arguments for argp functions. */
static const struct argp_option options[] =
{
{ "unbuffered", 'u', NULL, 0, N_("Don't buffer output") },
{ NULL, 0, NULL, 0, NULL }
};
/* Short description of program. */
static const char doc[] = N_("Dump information generated by PC profiling.");
/* Strings for arguments in help texts. */
static const char args_doc[] = N_("[FILE]");
/* Function to print some extra text in the help message. */
static char *more_help (int key, const char *text, void *input);
/* Prototype for option handler. */
static error_t parse_opt (int key, char *arg, struct argp_state *state);
/* 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
};
int
main (int argc, char *argv[])
{
/* Set locale via LC_ALL. */
setlocale (LC_ALL, "");
/* Set the text message domain. */
textdomain (PACKAGE);
/* Parse and process arguments. */
int remaining;
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
int fd;
if (remaining == argc)
fd = STDIN_FILENO;
else if (remaining + 1 != argc)
{
argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
program_invocation_short_name);
exit (1);
}
else
{
/* Open the given file. */
fd = open (argv[remaining], O_RDONLY);
if (fd == -1)
error (EXIT_FAILURE, errno, _("cannot open input file"));
}
/* Read the first 4-byte word. It contains the information about
the word size and the endianess. */
uint32_t word;
if (TEMP_FAILURE_RETRY (read (fd, &word, 4)) != 4)
error (EXIT_FAILURE, errno, _("cannot read header"));
/* Check whether we have to swap the byte order. */
int must_swap = (word & 0xfffffff0) == bswap_32 (0xdeb00000);
if (must_swap)
word = bswap_32 (word);
/* We have two loops, one for 32 bit pointers, one for 64 bit pointers. */
if (word == 0xdeb00004)
{
union
{
uint32_t ptrs[2];
char bytes[8];
} pair;
while (1)
{
size_t len = sizeof (pair);
size_t n;
while (len > 0
&& (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
len))) != 0)
len -= n;
if (len != 0)
/* Nothing to read. */
break;
printf ("this = %#010" PRIx32 ", caller = %#010" PRIx32 "\n",
must_swap ? bswap_32 (pair.ptrs[0]) : pair.ptrs[0],
must_swap ? bswap_32 (pair.ptrs[1]) : pair.ptrs[1]);
}
}
else if (word == 0xdeb00008)
{
union
{
uint64_t ptrs[2];
char bytes[16];
} pair;
while (1)
{
size_t len = sizeof (pair);
size_t n;
while (len > 0
&& (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
len))) != 0)
len -= n;
if (len != 0)
/* Nothing to read. */
break;
printf ("this = %#018" PRIx64 ", caller = %#018" PRIx64 "\n",
must_swap ? bswap_64 (pair.ptrs[0]) : pair.ptrs[0],
must_swap ? bswap_64 (pair.ptrs[1]) : pair.ptrs[1]);
}
}
else
/* This should not happen. */
error (EXIT_FAILURE, 0, _("invalid pointer size"));
/* Clean up. */
close (fd);
return 0;
}
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case 'u':
setbuf (stdout, NULL);
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static char *
more_help (int key, const char *text, void *input)
{
char *tp = NULL;
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, "pcprofiledump %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\
"), "2017");
fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
}