Merge GDB 7.5.1

gdb/common/format.h

+/* Parse a printf-style format string.
+
+   Copyright (C) 1986-2012 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */
+
+#if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG)
+# define USE_PRINTF_I64 1
+# define PRINTF_HAS_LONG_LONG
+#else
+# define USE_PRINTF_I64 0
+#endif
+
+/* The argclass represents the general type of data that goes with a
+   format directive; int_arg for %d, long_arg for %l, and so forth.
+   Note that these primarily distinguish types by size and need for
+   special handling, so for instance %u and %x are (at present) also
+   classed as int_arg.  */
+
+enum argclass
+  {
+    literal_piece,
+    int_arg, long_arg, long_long_arg, ptr_arg,
+    string_arg, wide_string_arg, wide_char_arg,
+    double_arg, long_double_arg, decfloat_arg
+  };
+
+/* A format piece is a section of the format string that may include a
+   single print directive somewhere in it, and the associated class
+   for the argument.  */
+
+struct format_piece
+{
+  char *string;
+  enum argclass argclass;
+};
+
+/* Return an array of printf fragments found at the given string, and
+   rewrite ARG with a pointer to the end of the format string.  */
+
+extern struct format_piece *parse_format_string (char **arg);
+
+/* Given a pointer to an array of format pieces, free any memory that
+   would have been allocated by parse_format_string.  */
+
+extern void free_format_pieces (struct format_piece *frags);
+
+/* Freeing, cast as a cleanup.  */
+
+extern void free_format_pieces_cleanup (void *);