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Diffstat (limited to 'binutils-2.25/gas/macro.h')
-rw-r--r-- | binutils-2.25/gas/macro.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/binutils-2.25/gas/macro.h b/binutils-2.25/gas/macro.h new file mode 100644 index 00000000..b1091782 --- /dev/null +++ b/binutils-2.25/gas/macro.h @@ -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. + + 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 |