CbC/CbC_gcc: gcc/genchecksum.c annotate

annotate gcc/genchecksum.c @ 158:494b0b89df80 default tip

...

author	Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date	Mon, 25 May 2020 18:13:55 +0900
parents	1830386684a0
children

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
145 1830386684a0 gcc-9.2.0 anatofuz parents: 131 diff changeset	2 Copyright (C) 2005-2020 Free Software Foundation, Inc.
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	4 This file is part of GCC.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6 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	7 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	8 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	9 version.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11 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	12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 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	14 for more details.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16 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	17 along with GCC; see the file COPYING3. If not see
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	18 <http://www.gnu.org/licenses/>. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	19
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	20 #include "bconfig.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	21 #include "system.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22 #include "md5.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	24 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25 usage (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	26 {
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	27 fputs ("Usage: genchecksums <filename> ...\n", stderr);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	28 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	29
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	30 /* 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	31 #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	32
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	33 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	34 dosum (struct md5_ctx ctx, const char file)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	35 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36 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	37 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	38 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	39
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	40 f = fopen (file, "rb");
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 if (!f)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 fprintf (stderr, "opening %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	46
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	47 /* 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	48 if (fseek (f, 16, SEEK_SET) != 0)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	49 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50 fprintf (stderr, "seeking in %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	52 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	53
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	54 /* 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	55 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	56 {
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 /* 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	58 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	59 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	60 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	61 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	62
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 /* 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	64 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	65 {
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 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	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	68 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	69 }
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 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	71 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	72 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	73
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 /* 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	75 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	76 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	77
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 /* 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	79 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	80 */
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 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	82 }
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 /* 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	85 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	86 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	87
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 if (fclose (f) != 0)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	89 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	90 fprintf (stderr, "reading %s: %s\n", file, xstrerror (errno));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91 exit (1);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 }
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	93 }
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 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	96 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	97 {
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 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	99 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	100 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	101
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 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	103 {
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 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	105 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	106 }
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 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	109 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	110 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	111 md5_finish_ctx (&ctx, result);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	112
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 0 diff changeset	113 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	114 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	115 fputs ("EXPORTED_CONST unsigned char executable_checksum[16] = { ", stdout);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	116 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	117 printf ("0x%02x%s", result[i], i == 15 ? " };\n" : ", ");
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	118
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	119 return 0;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	120 }

Mercurial > hg > CbC > CbC_gcc

annotate gcc/genchecksum.c @ 158:494b0b89df80 default tip