i386: Use const reference of struct ix86_frame to avoid copy
[official-gcc.git] / gcc / errors.c
blob9f1974d24b6c368bbd3b614e1d6b9f6dba82984e
1 /* Basic error reporting routines.
2 Copyright (C) 1999-2018 Free Software Foundation, Inc.
4 This file is part of GCC.
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
8 Software Foundation; either version 3, or (at your option) any later
9 version.
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.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 /* warning, error, and fatal. These definitions are suitable for use
21 in the generator programs; the compiler has a more elaborate suite
22 of diagnostic printers, found in diagnostic.c. */
24 #ifdef HOST_GENERATOR_FILE
25 #include "config.h"
26 #define GENERATOR_FILE 1
27 #else
28 #include "bconfig.h"
29 #endif
30 #include "system.h"
31 #include "errors.h"
33 /* Set this to argv[0] at the beginning of main. */
35 const char *progname;
37 /* Starts out 0, set to 1 if error is called. */
39 int have_error = 0;
41 /* Print a warning message - output produced, but there may be problems. */
43 void
44 warning (const char *format, ...)
46 va_list ap;
48 va_start (ap, format);
49 fprintf (stderr, "%s: warning: ", progname);
50 vfprintf (stderr, format, ap);
51 va_end (ap);
52 fputc ('\n', stderr);
56 /* Print an error message - we keep going but the output is unusable. */
58 void
59 error (const char *format, ...)
61 va_list ap;
63 va_start (ap, format);
64 fprintf (stderr, "%s: ", progname);
65 vfprintf (stderr, format, ap);
66 va_end (ap);
67 fputc ('\n', stderr);
69 have_error = 1;
73 /* Fatal error - terminate execution immediately. Does not return. */
75 void
76 fatal (const char *format, ...)
78 va_list ap;
80 va_start (ap, format);
81 fprintf (stderr, "%s: ", progname);
82 vfprintf (stderr, format, ap);
83 va_end (ap);
84 fputc ('\n', stderr);
85 exit (FATAL_EXIT_CODE);
88 /* Similar, but say we got an internal error. */
90 void
91 internal_error (const char *format, ...)
93 va_list ap;
95 va_start (ap, format);
96 fprintf (stderr, "%s: Internal error: ", progname);
97 vfprintf (stderr, format, ap);
98 va_end (ap);
99 fputc ('\n', stderr);
100 exit (FATAL_EXIT_CODE);
103 /* Given a partial pathname as input, return another pathname that
104 shares no directory elements with the pathname of __FILE__. This
105 is used by fancy_abort() to print `Internal compiler error in expr.c'
106 instead of `Internal compiler error in ../../GCC/gcc/expr.c'. This
107 version is meant to be used for the gen* programs and therefor need not
108 handle subdirectories. */
110 const char *
111 trim_filename (const char *name)
113 static const char this_file[] = __FILE__;
114 const char *p = name, *q = this_file;
116 /* Skip any parts the two filenames have in common. */
117 while (*p == *q && *p != 0 && *q != 0)
118 p++, q++;
120 /* Now go backwards until the previous directory separator. */
121 while (p > name && !IS_DIR_SEPARATOR (p[-1]))
122 p--;
124 return p;
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
129 the version in diagnostic.c. */
130 void
131 fancy_abort (const char *file, int line, const char *func)
133 internal_error ("abort in %s, at %s:%d", func, trim_filename (file), line);