CbC/CbC_gcc: gcc/genchecksum.c annotate

annotate gcc/genchecksum.c @ 88:f214c1d5b862

merge 89

author	Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date	Tue, 20 Dec 2011 18:53:46 +0900
parents	f6334be47118
children	04ced10e8804

rev	line source
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1 /* Generate checksums of executables for PCH validation
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	2 Copyright (C) 2005, 2007, 2009, 2010
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3 Free Software Foundation, Inc.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	4
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5 This file is part of GCC.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	7 GCC is free software; you can redistribute it and/or modify it under
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	8 the terms of the GNU General Public License as published by the Free
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	9 Software Foundation; either version 3, or (at your option) any later
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10 version.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15 for more details.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	17 You should have received a copy of the GNU General Public License
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	18 along with GCC; see the file COPYING3. If not see
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	19 <http://www.gnu.org/licenses/>. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	20
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	21 #include "bconfig.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22 #include "system.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23 #include "md5.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	24
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	26 usage (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	27 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	28 fputs ("Usage: genchecksums <filename> ...\n", stderr);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	29 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	30
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	31 /* Important: BLOCKSIZE must be a multiple of 64. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	32 #define BLOCKSIZE 4096
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	33
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	34 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	35 dosum (struct md5_ctx ctx, const char file)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	37 FILE *f;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	38 char buffer[BLOCKSIZE + 72];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	39 size_t sum;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	40
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 f = fopen (file, "rb");
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42 if (!f)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 fprintf (stderr, "opening %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	46 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	47
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	48 /* Some executable formats have timestamps in the first 16 bytes, yuck. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	49 if (fseek (f, 16, SEEK_SET) != 0)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 fprintf (stderr, "seeking in %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	52 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	53 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	54
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	55 /* Iterate over full file contents. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	56 while (1)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	57 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	58 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	59 computation function processes the whole buffer so that with the
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	60 next round of the loop another block can be read. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	61 size_t n;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	62 sum = 0;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	63
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	64 /* Read block. Take care for partial reads. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	65 do
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	66 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	67 n = fread (buffer + sum, 1, BLOCKSIZE - sum, f);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	68
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	69 sum += n;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	70 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	71 while (sum < BLOCKSIZE && n != 0);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	72 if (n == 0 && ferror (f))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	73 exit (1);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	74
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	75 /* If end of file is reached, end the loop. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	76 if (n == 0)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	77 break;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	78
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	79 /* Process buffer with BLOCKSIZE bytes. Note that
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	80 BLOCKSIZE % 64 == 0
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	81 */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	82 md5_process_block (buffer, BLOCKSIZE, ctx);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	83 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	84
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	85 /* Add the last bytes if necessary. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	86 if (sum > 0)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	87 md5_process_bytes (buffer, sum, ctx);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	88
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	89 if (fclose (f) != 0)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	90 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91 fprintf (stderr, "reading %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	93 }
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	94 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	95
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	96 int
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	97 main (int argc, char ** argv)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	98 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	99 struct md5_ctx ctx;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	100 unsigned char result[16];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	101 int i;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	102
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	103 if (argc < 2)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	104 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	105 usage ();
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	106 return 1;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	107 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	108
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	109 md5_init_ctx (&ctx);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	110 for (i = 1; i < argc; i++)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	111 dosum (&ctx, argv[i]);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	112 md5_finish_ctx (&ctx, result);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	113
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	114 puts ("#include \"config.h\"");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	115 puts ("#include \"system.h\"");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	116 fputs ("EXPORTED_CONST unsigned char executable_checksum[16] = { ", stdout);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	117 for (i = 0; i < 16; i++)
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	118 printf ("0x%02x%s", result[i], i == 15 ? " };\n" : ", ");
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	119
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	120 return 0;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	121 }

Mercurial > hg > CbC > CbC_gcc

annotate gcc/genchecksum.c @ 88:f214c1d5b862