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jeremybenn |
/* Basic error reporting routines.
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Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2007, 2008
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* warning, error, and fatal. These definitions are suitable for use
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in the generator programs; the compiler has a more elaborate suite
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of diagnostic printers, found in diagnostic.c. */
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#ifdef GENERATOR_FILE
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#include "bconfig.h"
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#else
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#include "config.h"
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#endif
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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 (const char *format, ...)
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{
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va_list ap;
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va_start (ap, format);
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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 (const char *format, ...)
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{
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va_list ap;
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va_start (ap, format);
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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 (const char *format, ...)
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{
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va_list ap;
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va_start (ap, format);
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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 (const char *format, ...)
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{
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va_list ap;
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va_start (ap, format);
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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 is meant to be used for the gen* programs and therefor need not
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handle subdirectories. */
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const char *
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trim_filename (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 && !IS_DIR_SEPARATOR (p[-1]))
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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 (const char *file, int line, const char *func)
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{
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internal_error ("abort in %s, at %s:%d", func, trim_filename (file), line);
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}
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