f900ecd8a7
* errors.c (internal_error, trim_filename): New functions. (fancy_abort): Call internal_error. * errors.h (internal_error, trim_filename): New declarations. From-SVN: r40037
170 lines
3.9 KiB
C
170 lines
3.9 KiB
C
/* Basic error reporting routines.
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Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* warning, error, and fatal. These definitions are suitable for use
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in the generator programs; eventually we would like to use them in
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cc1 too, but that's a longer term project. */
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#include "config.h"
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#include "system.h"
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#include "errors.h"
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/* Set this to argv[0] at the beginning of main. */
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const char *progname;
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/* Starts out 0, set to 1 if error is called. */
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int have_error = 0;
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/* Print a warning message - output produced, but there may be problems. */
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void
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warning VPARAMS ((const char *format, ...))
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{
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#ifndef ANSI_PROTOTYPES
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const char *format;
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#endif
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va_list ap;
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VA_START (ap, format);
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#ifndef ANSI_PROTOTYPES
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format = va_arg (ap, const char *);
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#endif
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fprintf (stderr, "%s: warning: ", progname);
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vfprintf (stderr, format, ap);
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va_end (ap);
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fputc('\n', stderr);
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}
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/* Print an error message - we keep going but the output is unusable. */
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void
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error VPARAMS ((const char *format, ...))
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{
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#ifndef ANSI_PROTOTYPES
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const char *format;
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#endif
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va_list ap;
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VA_START (ap, format);
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#ifndef ANSI_PROTOTYPES
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format = va_arg (ap, const char *);
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#endif
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fprintf (stderr, "%s: ", progname);
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vfprintf (stderr, format, ap);
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va_end (ap);
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fputc('\n', stderr);
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have_error = 1;
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}
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/* Fatal error - terminate execution immediately. Does not return. */
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void
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fatal VPARAMS ((const char *format, ...))
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{
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#ifndef ANSI_PROTOTYPES
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const char *format;
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#endif
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va_list ap;
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VA_START (ap, format);
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#ifndef ANSI_PROTOTYPES
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format = va_arg (ap, const char *);
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#endif
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fprintf (stderr, "%s: ", progname);
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vfprintf (stderr, format, ap);
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va_end (ap);
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fputc('\n', stderr);
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exit (FATAL_EXIT_CODE);
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}
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/* Similar, but say we got an internal error. */
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void
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internal_error VPARAMS ((const char *format, ...))
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{
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#ifndef ANSI_PROTOTYPES
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const char *format;
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#endif
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va_list ap;
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VA_START (ap, format);
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#ifndef ANSI_PROTOTYPES
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format = va_arg (ap, const char *);
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#endif
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fprintf (stderr, "%s: Internal error", progname);
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vfprintf (stderr, format, ap);
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va_end (ap);
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fputc ('\n', stderr);
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exit (FATAL_EXIT_CODE);
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}
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/* Given a partial pathname as input, return another pathname that
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shares no directory elements with the pathname of __FILE__. This
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is used by fancy_abort() to print `Internal compiler error in expr.c'
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instead of `Internal compiler error in ../../GCC/gcc/expr.c'. This
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version if for the gen* programs and so neededn't handle subdirectories. */
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const char *
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trim_filename (name)
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const char *name;
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{
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static const char this_file[] = __FILE__;
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const char *p = name, *q = this_file;
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/* Skip any parts the two filenames have in common. */
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while (*p == *q && *p != 0 && *q != 0)
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p++, q++;
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/* Now go backwards until the previous directory separator. */
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while (p > name && p[-1] != DIR_SEPARATOR
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#ifdef DIR_SEPARATOR_2
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&& p[-1] != DIR_SEPARATOR_2
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#endif
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)
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p--;
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return p;
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}
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/* "Fancy" abort. Reports where in the compiler someone gave up.
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This file is used only by build programs, so we're not as polite as
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the version in diagnostic.c. */
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void
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fancy_abort (file, line, func)
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const char *file;
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int line;
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const char *func;
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{
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internal_error ("abort in %s, at %s:%d", func, file, line);
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}
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