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+/* macro.h - header file for macro support for gas
+ Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2012 Free Software Foundation, Inc.
+
+ Written by Steve and Judy Chamberlain of Cygnus Support,
+ sac@cygnus.com
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS 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, or (at your option)
+ any later version.
+
+ GAS 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 GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef MACRO_H
+
+#define MACRO_H
+
+/* Structures used to store macros.
+
+ Each macro knows its name and included text. It gets built with a
+ list of formal arguments, and also keeps a hash table which points
+ into the list to speed up formal search. Each formal knows its
+ name and its default value. Each time the macro is expanded, the
+ formals get the actual values attached to them. */
+
+enum formal_type
+ {
+ FORMAL_OPTIONAL,
+ FORMAL_REQUIRED,
+ FORMAL_VARARG
+ };
+
+/* Describe the formal arguments to a macro. */
+
+typedef struct formal_struct {
+ struct formal_struct *next; /* Next formal in list. */
+ sb name; /* Name of the formal. */
+ sb def; /* The default value. */
+ sb actual; /* The actual argument (changed on each expansion). */
+ int index; /* The index of the formal 0..formal_count - 1. */
+ enum formal_type type; /* The kind of the formal. */
+} formal_entry;
+
+/* Other values found in the index field of a formal_entry. */
+#define QUAL_INDEX (-1)
+#define NARG_INDEX (-2)
+#define LOCAL_INDEX (-3)
+
+/* Describe the macro. */
+
+typedef struct macro_struct
+{
+ sb sub; /* Substitution text. */
+ int formal_count; /* Number of formal args. */
+ formal_entry *formals; /* Pointer to list of formal_structs. */
+ struct hash_control *formal_hash; /* Hash table of formals. */
+ const char *name; /* Macro name. */
+ char *file; /* File the macro was defined in. */
+ unsigned int line; /* Line number of definition. */
+} macro_entry;
+
+/* Whether any macros have been defined. */
+
+extern int macro_defined;
+
+/* The macro nesting level. */
+
+extern int macro_nest;
+
+/* The macro hash table. */
+
+extern struct hash_control *macro_hash;
+
+extern int buffer_and_nest (const char *, const char *, sb *,
+ size_t (*) (sb *));
+extern void macro_init (int, int, int,
+ size_t (*) (const char *, size_t, sb *, offsetT *));
+extern void macro_set_alternate (int);
+extern void macro_mri_mode (int);
+extern const char *define_macro (size_t, sb *, sb *, size_t (*) (sb *),
+ char *, unsigned int, const char **);
+extern int check_macro (const char *, sb *, const char **, macro_entry **);
+extern void delete_macro (const char *);
+extern const char *expand_irp (int, size_t, sb *, sb *, size_t (*) (sb *));
+
+#endif