1 /* Dump information generated by PC profiling.
2 Copyright (C) 1999-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 /* This is mainly an example. It shows how programs which want to use
21 the information should read the file. */
38 #include "../version.h"
40 #define PACKAGE _libc_intl_domainname
43 # define _(Str) gettext (Str)
50 /* Definitions of arguments for argp functions. */
51 static const struct argp_option options[] =
53 { "unbuffered", 'u', NULL, 0, N_("Don't buffer output") },
54 { NULL, 0, NULL, 0, NULL }
57 /* Short description of program. */
58 static const char doc[] = N_("Dump information generated by PC profiling.");
60 /* Strings for arguments in help texts. */
61 static const char args_doc[] = N_("[FILE]");
63 /* Function to print some extra text in the help message. */
64 static char *more_help (int key, const char *text, void *input);
66 /* Prototype for option handler. */
67 static error_t parse_opt (int key, char *arg, struct argp_state *state);
69 /* Name and version of program. */
70 static void print_version (FILE *stream, struct argp_state *state);
71 void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
73 /* Data structure to communicate with argp functions. */
74 static struct argp argp =
76 options, parse_opt, args_doc, doc, NULL, more_help
81 main (int argc, char *argv[])
83 /* Set locale via LC_ALL. */
84 setlocale (LC_ALL, "");
86 /* Set the text message domain. */
89 /* Parse and process arguments. */
91 argp_parse (&argp, argc, argv, 0, &remaining, NULL);
94 if (remaining == argc)
96 else if (remaining + 1 != argc)
98 argp_help (&argp, stdout, ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR,
99 program_invocation_short_name);
104 /* Open the given file. */
105 fd = open (argv[remaining], O_RDONLY);
108 error (EXIT_FAILURE, errno, _("cannot open input file"));
111 /* Read the first 4-byte word. It contains the information about
112 the word size and the endianess. */
114 if (TEMP_FAILURE_RETRY (read (fd, &word, 4)) != 4)
115 error (EXIT_FAILURE, errno, _("cannot read header"));
117 /* Check whether we have to swap the byte order. */
118 int must_swap = (word & 0xfffffff0) == bswap_32 (0xdeb00000);
120 word = bswap_32 (word);
122 /* We have two loops, one for 32 bit pointers, one for 64 bit pointers. */
123 if (word == 0xdeb00004)
133 size_t len = sizeof (pair);
137 && (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
142 /* Nothing to read. */
145 printf ("this = %#010" PRIx32 ", caller = %#010" PRIx32 "\n",
146 must_swap ? bswap_32 (pair.ptrs[0]) : pair.ptrs[0],
147 must_swap ? bswap_32 (pair.ptrs[1]) : pair.ptrs[1]);
150 else if (word == 0xdeb00008)
160 size_t len = sizeof (pair);
164 && (n = TEMP_FAILURE_RETRY (read (fd, &pair.bytes[8 - len],
169 /* Nothing to read. */
172 printf ("this = %#018" PRIx64 ", caller = %#018" PRIx64 "\n",
173 must_swap ? bswap_64 (pair.ptrs[0]) : pair.ptrs[0],
174 must_swap ? bswap_64 (pair.ptrs[1]) : pair.ptrs[1]);
178 /* This should not happen. */
179 error (EXIT_FAILURE, 0, _("invalid pointer size"));
188 parse_opt (int key, char *arg, struct argp_state *state)
193 setbuf (stdout, NULL);
196 return ARGP_ERR_UNKNOWN;
202 more_help (int key, const char *text, void *input)
207 case ARGP_KEY_HELP_EXTRA:
208 /* We print some extra information. */
209 if (asprintf (&tp, gettext ("\
210 For bug reporting instructions, please see:\n\
211 %s.\n"), REPORT_BUGS_TO) < 0)
217 return (char *) text;
220 /* Print the version information. */
222 print_version (FILE *stream, struct argp_state *state)
224 fprintf (stream, "pcprofiledump %s%s\n", PKGVERSION, VERSION);
225 fprintf (stream, gettext ("\
226 Copyright (C) %s Free Software Foundation, Inc.\n\
227 This is free software; see the source for copying conditions. There is NO\n\
228 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
230 fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");