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f8b6598e | 1 | /* Basic error reporting routines. |
7adcbafe | 2 | Copyright (C) 1999-2022 Free Software Foundation, Inc. |
f8b6598e | 3 | |
1322177d | 4 | This file is part of GCC. |
f8b6598e | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
f8b6598e | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
f8b6598e ZW |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
f8b6598e ZW |
19 | |
20 | /* warning, error, and fatal. These definitions are suitable for use | |
7e7ec48e | 21 | in the generator programs; the compiler has a more elaborate suite |
e53b6e56 | 22 | of diagnostic printers, found in diagnostic.cc. */ |
f8b6598e | 23 | |
d6d34aa9 | 24 | #ifdef HOST_GENERATOR_FILE |
b3d1f5b4 | 25 | #include "config.h" |
d6d34aa9 JJ |
26 | #define GENERATOR_FILE 1 |
27 | #else | |
28 | #include "bconfig.h" | |
b3d1f5b4 | 29 | #endif |
f8b6598e ZW |
30 | #include "system.h" |
31 | #include "errors.h" | |
32 | ||
33 | /* Set this to argv[0] at the beginning of main. */ | |
34 | ||
35 | const char *progname; | |
36 | ||
37 | /* Starts out 0, set to 1 if error is called. */ | |
38 | ||
39 | int have_error = 0; | |
40 | ||
41 | /* Print a warning message - output produced, but there may be problems. */ | |
42 | ||
38d2336a MLI |
43 | void |
44 | warning (const char *format, ...) | |
f8b6598e | 45 | { |
e34d07f2 | 46 | va_list ap; |
3d7aafde | 47 | |
e34d07f2 | 48 | va_start (ap, format); |
f8b6598e ZW |
49 | fprintf (stderr, "%s: warning: ", progname); |
50 | vfprintf (stderr, format, ap); | |
e34d07f2 | 51 | va_end (ap); |
c3284718 | 52 | fputc ('\n', stderr); |
f8b6598e ZW |
53 | } |
54 | ||
55 | ||
56 | /* Print an error message - we keep going but the output is unusable. */ | |
57 | ||
58 | void | |
e34d07f2 | 59 | error (const char *format, ...) |
f8b6598e | 60 | { |
e34d07f2 | 61 | va_list ap; |
3d7aafde | 62 | |
e34d07f2 | 63 | va_start (ap, format); |
f8b6598e ZW |
64 | fprintf (stderr, "%s: ", progname); |
65 | vfprintf (stderr, format, ap); | |
e34d07f2 | 66 | va_end (ap); |
c3284718 | 67 | fputc ('\n', stderr); |
f8b6598e ZW |
68 | |
69 | have_error = 1; | |
70 | } | |
71 | ||
72 | ||
73 | /* Fatal error - terminate execution immediately. Does not return. */ | |
74 | ||
75 | void | |
e34d07f2 | 76 | fatal (const char *format, ...) |
f8b6598e | 77 | { |
e34d07f2 | 78 | va_list ap; |
3d7aafde | 79 | |
e34d07f2 | 80 | va_start (ap, format); |
f8b6598e ZW |
81 | fprintf (stderr, "%s: ", progname); |
82 | vfprintf (stderr, format, ap); | |
e34d07f2 | 83 | va_end (ap); |
c3284718 | 84 | fputc ('\n', stderr); |
f8b6598e ZW |
85 | exit (FATAL_EXIT_CODE); |
86 | } | |
fbfc1192 | 87 | |
f900ecd8 RK |
88 | /* Similar, but say we got an internal error. */ |
89 | ||
90 | void | |
e34d07f2 | 91 | internal_error (const char *format, ...) |
f900ecd8 | 92 | { |
e34d07f2 | 93 | va_list ap; |
3d7aafde | 94 | |
e34d07f2 | 95 | va_start (ap, format); |
1f3b37a3 | 96 | fprintf (stderr, "%s: Internal error: ", progname); |
f900ecd8 | 97 | vfprintf (stderr, format, ap); |
e34d07f2 | 98 | va_end (ap); |
f900ecd8 RK |
99 | fputc ('\n', stderr); |
100 | exit (FATAL_EXIT_CODE); | |
101 | } | |
102 | ||
103 | /* Given a partial pathname as input, return another pathname that | |
104 | shares no directory elements with the pathname of __FILE__. This | |
e53b6e56 ML |
105 | is used by fancy_abort() to print `Internal compiler error in expr.cc' |
106 | instead of `Internal compiler error in ../../GCC/gcc/expr.cc'. This | |
84047858 | 107 | version is meant to be used for the gen* programs and therefor need not |
249eb506 | 108 | handle subdirectories. */ |
f900ecd8 RK |
109 | |
110 | const char * | |
3d7aafde | 111 | trim_filename (const char *name) |
f900ecd8 RK |
112 | { |
113 | static const char this_file[] = __FILE__; | |
114 | const char *p = name, *q = this_file; | |
115 | ||
116 | /* Skip any parts the two filenames have in common. */ | |
117 | while (*p == *q && *p != 0 && *q != 0) | |
118 | p++, q++; | |
119 | ||
120 | /* Now go backwards until the previous directory separator. */ | |
e5610450 | 121 | while (p > name && !IS_DIR_SEPARATOR (p[-1])) |
f900ecd8 RK |
122 | p--; |
123 | ||
124 | return p; | |
125 | } | |
126 | ||
fbfc1192 ZW |
127 | /* "Fancy" abort. Reports where in the compiler someone gave up. |
128 | This file is used only by build programs, so we're not as polite as | |
e53b6e56 | 129 | the version in diagnostic.cc. */ |
fbfc1192 | 130 | void |
3d7aafde | 131 | fancy_abort (const char *file, int line, const char *func) |
fbfc1192 | 132 | { |
b3d1f5b4 | 133 | internal_error ("abort in %s, at %s:%d", func, trim_filename (file), line); |
fbfc1192 | 134 | } |