Initial revision

From-SVN: r9191

1 files changed, 338 insertions, 0 deletions

diff --git a/gcc/cpperror.c b/gcc/cpperror.c
new file mode 100644
index 0000000..e552989
--- /dev/null
+++ b/gcc/cpperror.c
@@ -0,0 +1,338 @@
+/* Default error handlers for CPP Library.
+   Copyright (C) 1986, 87, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
+   Written by Per Bothner, 1994.
+   Based on CCCP program by by Paul Rubin, June 1986
+   Adapted to ANSI C, Richard Stallman, Jan 1987
+
+This program 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.
+
+This program 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 this program; if not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ In other words, you are welcome to use, share and improve this program.
+ You are forbidden to forbid anyone else to use, share and improve
+ what you give them.   Help stamp out software-hoarding!  */
+
+#include "cpplib.h"
+#include <stdio.h>
+
+/* This defines "errno" properly for VMS, and gives us EACCES. */
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
+#ifndef VMS
+#ifndef HAVE_STRERROR
+extern int sys_nerr;
+#if defined(bsd4_4) || defined(__NetBSD__)
+extern const char *const sys_errlist[];
+#else
+extern char *sys_errlist[];
+#endif
+#else	/* HAVE_STERRROR */
+char *strerror ();
+#endif
+#else	/* VMS */
+char *strerror (int,...);
+#endif
+
+/* Print the file names and line numbers of the #include
+   commands which led to the current file.  */
+
+void
+cpp_print_containing_files (pfile)
+     cpp_reader *pfile;
+{
+  cpp_buffer *ip;
+  int i;
+  int first = 1;
+
+  /* If stack of files hasn't changed since we last printed
+     this info, don't repeat it.  */
+  if (pfile->input_stack_listing_current)
+    return;
+
+  ip = cpp_file_buffer (pfile);
+
+  /* Give up if we don't find a source file.  */
+  if (ip == NULL)
+    return;
+
+  /* Find the other, outer source files.  */
+  while ((ip = CPP_PREV_BUFFER (ip)), ip != CPP_NULL_BUFFER (pfile))
+    {
+      long line, col;
+      cpp_buf_line_and_col (ip, &line, &col);
+      if (ip->fname != NULL)
+	{
+	  if (first)
+	    {
+	      first = 0;
+	      fprintf (stderr, "In file included");
+	    }
+	  else
+	    fprintf (stderr, ",\n                ");
+	}
+
+/* start-sanitize-mpw */
+#ifdef MPW
+      fprintf (stderr, " File \"%s\"; Line %d  # ", ip->nominal_fname, line);
+#else
+/* end-sanitize-mpw */
+      fprintf (stderr, " from %s:%d", ip->nominal_fname, line);
+/* start-sanitize-mpw */
+#endif /* MPW */
+/* end-sanitize-mpw */
+    }
+  if (! first)
+    fprintf (stderr, ":\n");
+
+  /* Record we have printed the status as of this time.  */
+  pfile->input_stack_listing_current = 1;
+}
+
+void
+cpp_print_file_and_line (pfile)
+     cpp_reader *pfile;
+{
+  cpp_buffer *ip = cpp_file_buffer (pfile);
+
+  if (ip != NULL)
+    {
+      long line, col;
+      cpp_buf_line_and_col (ip, &line, &col);
+      if (pfile->show_column)
+	fprintf (stderr, "%s:%d:%d: ", ip->nominal_fname, line, col);
+      else
+	fprintf (stderr, "%s:%d: ", ip->nominal_fname, line);
+    }
+}
+
+void
+cpp_error (pfile, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  cpp_print_containing_files (pfile);
+  cpp_print_file_and_line (pfile);
+  fprintf (stderr, msg, arg1, arg2, arg3);
+  fprintf (stderr, "\n");
+  pfile->errors++;
+}
+
+/* Print error message but don't count it.  */
+
+void
+cpp_warning (pfile, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  if (CPP_OPTIONS (pfile)->inhibit_warnings)
+    return;
+
+  if (CPP_OPTIONS (pfile)->warnings_are_errors)
+    pfile->errors++;
+
+  cpp_print_containing_files (pfile);
+  cpp_print_file_and_line (pfile);
+  fprintf (stderr, "warning: ");
+  fprintf (stderr, msg, arg1, arg2, arg3);
+  fprintf (stderr, "\n");
+}
+
+void
+cpp_error_with_line (pfile, line, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     int line;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  int i;
+  cpp_buffer *ip = cpp_file_buffer (pfile);
+
+  cpp_print_containing_files (pfile);
+
+  if (ip != NULL)
+    fprintf (stderr, "%s:%d: ", ip->nominal_fname, line);
+
+  fprintf (stderr, msg, arg1, arg2, arg3);
+  fprintf (stderr, "\n");
+  pfile->errors++;
+}
+
+void
+cpp_warning_with_line (pfile, line, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     int line;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  int i;
+  cpp_buffer *ip;
+
+  if (CPP_OPTIONS (pfile)->inhibit_warnings)
+    return;
+
+  if (CPP_OPTIONS (pfile)->warnings_are_errors)
+    pfile->errors++;
+
+  cpp_print_containing_files (pfile);
+
+  ip = cpp_file_buffer (pfile);
+
+  if (ip != NULL)
+    fprintf (stderr, "%s:%d: ", ip->nominal_fname, line);
+  fprintf (stderr, "warning: ");
+  fprintf (stderr, msg, arg1, arg2, arg3);
+  fprintf (stderr, "\n");
+}
+
+/* Print an error message and maybe count it.  */
+
+void
+cpp_pedwarn (pfile, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  if (CPP_OPTIONS (pfile)->pedantic_errors)
+    cpp_error (pfile, msg, arg1, arg2, arg3);
+  else
+    cpp_warning (pfile, msg, arg1, arg2, arg3);
+}
+
+void
+cpp_pedwarn_with_line (pfile, line, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     int line;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  if (CPP_OPTIONS (pfile)->pedantic_errors)
+    cpp_error_with_line (pfile, line, msg, arg1, arg2, arg3);
+  else
+    cpp_warning_with_line (pfile, line, msg, arg1, arg2, arg3);
+}
+
+/* Report a warning (or an error if pedantic_errors)
+   giving specified file name and line number, not current.  */
+
+void
+cpp_pedwarn_with_file_and_line (pfile, file, line, msg, arg1, arg2, arg3)
+     cpp_reader *pfile;
+     char *file;
+     int line;
+     char *msg;
+     char *arg1, *arg2, *arg3;
+{
+  if (!CPP_OPTIONS (pfile)->pedantic_errors
+      && CPP_OPTIONS (pfile)->inhibit_warnings)
+    return;
+  if (file != NULL)
+    fprintf (stderr, "%s:%d: ", file, line);
+  if (CPP_OPTIONS (pfile)->pedantic_errors)
+    pfile->errors++;
+  else
+    fprintf (stderr, "warning: ");
+  fprintf (stderr, msg, arg1, arg2, arg3);
+  fprintf (stderr, "\n");
+}
+
+void
+fatal (str, arg)
+     char *str, *arg;
+{
+  fprintf (stderr, "%s: ", progname);
+  fprintf (stderr, str, arg);
+  fprintf (stderr, "\n");
+  exit (FAILURE_EXIT_CODE);
+}
+
+
+/*
+ * my_strerror - return the descriptive text associated with an `errno' code.
+ */
+
+char *
+my_strerror (errnum)
+     int errnum;
+{
+  char *result;
+
+#ifndef VMS
+#ifndef HAVE_STRERROR
+  result = (char *) ((errnum < sys_nerr) ? sys_errlist[errnum] : 0);
+#else
+  result = strerror (errnum);
+#endif
+#else	/* VMS */
+  /* VAXCRTL's strerror() takes an optional second argument, which only
+     matters when the first argument is EVMSERR.  However, it's simplest
+     just to pass it unconditionally.  `vaxc$errno' is declared in
+     <errno.h>, and maintained by the library in parallel with `errno'.
+     We assume that caller's `errnum' either matches the last setting of
+     `errno' by the library or else does not have the value `EVMSERR'.  */
+
+  result = strerror (errnum, vaxc$errno);
+#endif
+
+  if (!result)
+    result = "undocumented I/O error";
+
+  return result;
+}
+
+/* Error including a message from `errno'.  */
+
+void
+cpp_error_from_errno (pfile, name)
+     cpp_reader *pfile;
+     char *name;
+{
+  int i;
+  cpp_buffer *ip = cpp_file_buffer (pfile);
+
+  cpp_print_containing_files (pfile);
+
+  if (ip != NULL)
+    fprintf (stderr, "%s:%d: ", ip->nominal_fname, ip->lineno);
+
+  fprintf (stderr, "%s: %s\n", name, my_strerror (errno));
+
+  pfile->errors++;
+}
+
+void
+cpp_perror_with_name (pfile, name)
+     cpp_reader *pfile;
+     char *name;
+{
+  fprintf (stderr, "%s: ", progname);
+  fprintf (stderr, "%s: %s\n", name, my_strerror (errno));
+  pfile->errors++;
+}
+
+void
+cpp_pfatal_with_name (pfile, name)
+     cpp_reader *pfile;
+     char *name;
+{
+  cpp_perror_with_name (pfile, name);
+#ifdef VMS
+  exit (vaxc$errno);
+#else
+  exit (FAILURE_EXIT_CODE);
+#endif
+}