0,0 → 1,97 |
/* 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. |
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Written by Steve and Judy Chamberlain of Cygnus Support, |
sac@cygnus.com |
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This file is part of GAS, the GNU Assembler. |
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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. |
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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. |
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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. */ |
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#ifndef MACRO_H |
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#define MACRO_H |
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/* Structures used to store macros. |
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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. */ |
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enum formal_type |
{ |
FORMAL_OPTIONAL, |
FORMAL_REQUIRED, |
FORMAL_VARARG |
}; |
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/* Describe the formal arguments to a macro. */ |
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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; |
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/* Other values found in the index field of a formal_entry. */ |
#define QUAL_INDEX (-1) |
#define NARG_INDEX (-2) |
#define LOCAL_INDEX (-3) |
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/* Describe the macro. */ |
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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; |
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/* Whether any macros have been defined. */ |
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extern int macro_defined; |
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/* The macro nesting level. */ |
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extern int macro_nest; |
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/* The macro hash table. */ |
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extern struct hash_control *macro_hash; |
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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 *)); |
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#endif |