1/* Generate version strings. See gcov-io.h for
2 description of how the version string is generated.
3 Copyright (C) 2002-2023 Free Software Foundation, Inc.
4 Contributed by Nathan Sidwell <nathan@codesourcery.com>
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 3, or (at your option) any later
11version.
12
13GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License
19along with GCC; see the file COPYING3. If not see
20<http://www.gnu.org/licenses/>. */
21
22#include "bconfig.h"
23#include "system.h"
24
25/* Command line arguments are the base GCC version and the development
26 phase (the latter may be an empty string). */
27
28int
29main (void)
30{
31 unsigned int version = 0;
32 unsigned char v[4];
33 unsigned int ix;
34 unsigned long major;
35 unsigned long minor = 0;
36 char phase = 0;
37 char basever[] = BASEVER;
38 char *ptr = basever;
39
40 major = strtoul (nptr: ptr, endptr: &ptr, base: 10);
41
42 if (*ptr == '.')
43 minor = strtoul (nptr: ptr + 1, endptr: 0, base: 10);
44
45 /* For releases the development phase is an empty string, for
46 prerelease versions on a release branch it is "prerelease".
47 Consider both equal as patch-level releases do not change
48 the GCOV version either.
49 On the trunk the development phase is "experimental". */
50 phase = DEVPHASE[0];
51 if (phase == '\0'
52 || strcmp (DEVPHASE, "prerelease") == 0)
53 phase = '*';
54
55 v[0] = (major / 10) + 'A';
56 v[1] = (major % 10) + '0';
57 v[2] = minor + '0';
58 v[3] = phase;
59
60 for (ix = 0; ix != 4; ix++)
61 version = (version << 8) | v[ix];
62
63 printf (format: "#ifndef VERSION_H\n");
64 printf (format: "#define VERSION_H\n\n");
65 printf (format: "/* Generated automatically by genversion. */\n");
66 printf (format: "\n");
67 printf (format: "#define GCC_major_version %lu\n\n", major);
68
69 printf (format: "/* The complete version string, assembled from several pieces.\n"
70 "BASEVER, DATESTAMP, DEVPHASE, and REVISION are defined by the\n"
71 "Makefile. */\n\n");
72
73 printf ("#define version_string \"" BASEVER DATESTAMP DEVPHASE REVISION "\"\n");
74 printf ("#define pkgversion_string \"" PKGVERSION "\"\n\n");
75
76 printf (format: "/* This is the location of the online document giving instructions for\n"
77 "reporting bugs. If you distribute a modified version of GCC,\n"
78 "please configure with --with-bugurl pointing to a document giving\n"
79 "instructions for reporting bugs to you, not us. (You are of course\n"
80 "welcome to forward us bugs reported to you, if you determine that\n"
81 "they are not bugs in your modifications.) */\n\n");
82 printf ("#define bug_report_url \"" BUGURL "\"\n\n");
83
84 printf (format: "#define GCOV_VERSION ((gcov_unsigned_t)0x%08x) /* %.4s */\n",
85 version, v);
86 printf (format: "\n#endif /* VERSION_H */\n");
87
88 return 0;
89}
90

source code of gcc/genversion.cc