errors.c: New file...

1999-08-27 00:27 -0700  Zack Weinberg  <zack@bitmover.com>

	* errors.c: New file; defines functions error, warning, and
	fatal, variables have_error and progname.
	* errors.h: New file; prototypes and decls for stuff in errors.c.

	* Makefile: Add rules to build errors.o and
	$(HOST_PREFIX)errors.o.  Link genconfig, gencodes, genemit,
	genopinit, genrecog, genextract, genpeep, genattr, and
	genoutput with errors.o.  Add errors.h to deps of genconfig.o,
	gencodes.o, genemit.o, genopinit.o, genrecog.o, genextract.o,
	genpeep.o, genattr.o, and genoutput.o.

	* genconfig.c, gencodes.c, genemit.c, genopinit.c, genrecog.c,
	genextract.c, genpeep.c, genattr.c:  Include errors.h.  Don't
	define or prototype fatal.  Set progname at beginning of main.
	* genoutput.c:  Likewise, and don't define or prototype error
	either.

From-SVN: r28925

1 files changed, 106 insertions, 0 deletions

diff --git a/gcc/errors.c b/gcc/errors.c
new file mode 100644
index 0000000..556e740
--- /dev/null
+++ b/gcc/errors.c
@@ -0,0 +1,106 @@
+/* Basic error reporting routines.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* warning, error, and fatal.  These definitions are suitable for use
+   in the generator programs; eventually we would like to use them in
+   cc1 too, but that's a longer term project.  */
+
+#include "config.h"
+#include "system.h"
+#include "errors.h"
+
+/* Set this to argv[0] at the beginning of main.  */
+
+const char *progname;
+
+/* Starts out 0, set to 1 if error is called.  */
+
+int have_error = 0;
+
+/* Print a warning message - output produced, but there may be problems.  */
+
+void
+warning VPROTO ((const char *format, ...))
+{
+#ifndef ANSI_PROTOTYPES
+  const char *format;
+#endif
+  va_list ap;
+
+  VA_START (ap, format);
+
+#ifndef ANSI_PROTOTYPES
+  format = va_arg (ap, const char *);
+#endif
+
+  fprintf (stderr, "%s: warning: ", progname);
+  vfprintf (stderr, format, ap);
+  va_end (ap);
+  fputc('\n', stderr);
+}
+
+
+/* Print an error message - we keep going but the output is unusable.  */
+
+void
+error VPROTO ((const char *format, ...))
+{
+#ifndef ANSI_PROTOTYPES
+  const char *format;
+#endif
+  va_list ap;
+
+  VA_START (ap, format);
+
+#ifndef ANSI_PROTOTYPES
+  format = va_arg (ap, const char *);
+#endif
+
+  fprintf (stderr, "%s: ", progname);
+  vfprintf (stderr, format, ap);
+  va_end (ap);
+  fputc('\n', stderr);
+
+  have_error = 1;
+}
+
+
+/* Fatal error - terminate execution immediately.  Does not return.  */
+
+void
+fatal VPROTO ((const char *format, ...))
+{
+#ifndef ANSI_PROTOTYPES
+  const char *format;
+#endif
+  va_list ap;
+
+  VA_START (ap, format);
+
+#ifndef ANSI_PROTOTYPES
+  format = va_arg (ap, const char *);
+#endif
+
+  fprintf (stderr, "%s: ", progname);
+  vfprintf (stderr, format, ap);
+  va_end (ap);
+  fputc('\n', stderr);
+  exit (FATAL_EXIT_CODE);
+}