-/* macro.h - header file for macro support for gas and gasp
- Copyright (C) 1994, 95, 96, 97, 1998 Free Software Foundation, Inc.
+/* macro.h - header file for macro support for gas
+ Copyright (C) 1994-2021 Free Software Foundation, Inc.
Written by Steve and Judy Chamberlain of Cygnus Support,
sac@cygnus.com
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 2, or (at your option)
+ 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,
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, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#ifndef MACRO_H
#define MACRO_H
-#include "ansidecl.h"
-#include "sb.h"
-
-/* Structures used to store macros.
+/* 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 attatched to them. */
-
-/* describe the formal arguments to a macro */
+ formals get the actual values attached to them. */
-typedef struct formal_struct
+enum formal_type
{
- 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 */
- }
-formal_entry;
+ 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. */
+/* 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. */
- }
-macro_entry;
+{
+ sb sub; /* Substitution text. */
+ int formal_count; /* Number of formal args. */
+ formal_entry *formals; /* Pointer to list of formal_structs. */
+ struct htab *formal_hash; /* Hash table of formals. */
+ const char *name; /* Macro name. */
+ const 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_nest;
-extern int buffer_and_nest
- PARAMS ((const char *, const char *, sb *, int (*) PARAMS ((sb *))));
-extern void macro_init
- PARAMS ((int alternate, int mri, int strip_at,
- int (*) PARAMS ((const char *, int, sb *, int *))));
-extern void macro_mri_mode PARAMS ((int));
-extern const char *define_macro
- PARAMS ((int idx, sb *in, sb *label, int (*get_line) PARAMS ((sb *)),
- const char **namep));
-extern int check_macro PARAMS ((const char *, sb *, int, const char **,
- macro_entry **));
-extern void delete_macro PARAMS ((const char *));
-extern const char *expand_irp
- PARAMS ((int, int, sb *, sb *, int (*) PARAMS ((sb *)), int));
+/* The macro hash table. */
+
+extern struct htab *macro_hash;
+
+struct macro_hash_entry
+{
+ const char *name;
+ macro_entry *macro;
+};
+
+typedef struct macro_hash_entry macro_hash_entry_t;
+
+/* Hash function for a macro_hash_entry. */
+
+static inline hashval_t
+hash_macro_entry (const void *e)
+{
+ const macro_hash_entry_t *entry = (const macro_hash_entry_t *) e;
+ return htab_hash_string (entry->name);
+}
+
+/* Equality function for a macro_hash_entry. */
+
+static inline int
+eq_macro_entry (const void *a, const void *b)
+{
+ const macro_hash_entry_t *ea = (const macro_hash_entry_t *) a;
+ const macro_hash_entry_t *eb = (const macro_hash_entry_t *) b;
+
+ return strcmp (ea->name, eb->name) == 0;
+}
+
+static inline macro_hash_entry_t *
+macro_entry_alloc (const char *name, macro_entry *macro)
+{
+ macro_hash_entry_t *entry = XNEW (macro_hash_entry_t);
+ entry->name = name;
+ entry->macro = macro;
+ return entry;
+}
+
+static inline macro_entry *
+macro_entry_find (htab_t table, const char *name)
+{
+ macro_hash_entry_t needle = { name, NULL };
+ macro_hash_entry_t *entry = htab_find (table, &needle);
+ return entry != NULL ? entry->macro : NULL;
+}
+
+struct formal_hash_entry
+{
+ const char *name;
+ formal_entry *formal;
+};
+
+typedef struct formal_hash_entry formal_hash_entry_t;
+
+/* Hash function for a macro_hash_entry. */
+
+static inline hashval_t
+hash_formal_entry (const void *e)
+{
+ const formal_hash_entry_t *entry = (const formal_hash_entry_t *) e;
+ return htab_hash_string (entry->name);
+}
+
+/* Equality function for a formal_hash_entry. */
+
+static inline int
+eq_formal_entry (const void *a, const void *b)
+{
+ const formal_hash_entry_t *ea = (const formal_hash_entry_t *) a;
+ const formal_hash_entry_t *eb = (const formal_hash_entry_t *) b;
+
+ return strcmp (ea->name, eb->name) == 0;
+}
+
+static inline formal_hash_entry_t *
+formal_entry_alloc (const char *name, formal_entry *formal)
+{
+ formal_hash_entry_t *entry = XNEW (formal_hash_entry_t);
+ entry->name = name;
+ entry->formal = formal;
+ return entry;
+}
+
+static inline formal_entry *
+formal_entry_find (htab_t table, const char *name)
+{
+ formal_hash_entry_t needle = { name, NULL };
+ formal_hash_entry_t *entry = htab_find (table, &needle);
+ return entry != NULL ? entry->formal : NULL;
+}
+
+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 *),
+ const 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
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