read.h revision 60484 
1/* read.h - of read.c
2   Copyright (C) 1986, 90, 92, 93, 94, 95, 96, 1997
3   Free Software Foundation, Inc.
4
5   This file is part of GAS, the GNU Assembler.
6
7   GAS is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2, or (at your option)
10   any later version.
11
12   GAS is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with GAS; see the file COPYING.  If not, write to
19   the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20
21extern char *input_line_pointer;/* -> char we are parsing now. */
22
23#define PERMIT_WHITESPACE	/* Define to make whitespace be allowed in */
24/* many syntactically unnecessary places. */
25/* Normally undefined. For compatibility */
26/* with ancient GNU cc. */
27/* #undef PERMIT_WHITESPACE */
28
29#ifdef PERMIT_WHITESPACE
30#define SKIP_WHITESPACE() {if (* input_line_pointer == ' ') ++ input_line_pointer;}
31#else
32#define SKIP_WHITESPACE() know(*input_line_pointer != ' ' )
33#endif
34
35
36#define	LEX_NAME	(1)	/* may continue a name */
37#define LEX_BEGIN_NAME	(2)	/* may begin a name */
38#define LEX_END_NAME	(4)	/* ends a name */
39
40#define is_name_beginner(c) \
41  ( lex_type[(unsigned char) (c)] & LEX_BEGIN_NAME )
42#define is_part_of_name(c) \
43  ( lex_type[(unsigned char) (c)] & LEX_NAME       )
44#define is_name_ender(c) \
45  ( lex_type[(unsigned char) (c)] & LEX_END_NAME   )
46
47#ifndef is_a_char
48#define CHAR_MASK	(0xff)
49#define NOT_A_CHAR	(CHAR_MASK+1)
50#define is_a_char(c)	(((unsigned)(c)) <= CHAR_MASK)
51#endif /* is_a_char() */
52
53extern char lex_type[];
54extern char is_end_of_line[];
55
56extern int is_it_end_of_statement PARAMS ((void));
57
58extern int target_big_endian;
59
60/* These are initialized by the CPU specific target files (tc-*.c).  */
61extern const char comment_chars[];
62extern const char line_comment_chars[];
63extern const char line_separator_chars[];
64
65/* Table of -I directories.  */
66extern char **include_dirs;
67extern int include_dir_count;
68extern int include_dir_maxlen;
69
70/* The offset in the absolute section.  */
71extern addressT abs_section_offset;
72
73/* The label on a line, used by some of the pseudo-ops.  */
74extern symbolS *line_label;
75
76/* This is used to support MRI common sections.  */
77extern symbolS *mri_common_symbol;
78
79/* Possible arguments to .linkonce.  */
80enum linkonce_type
81{
82  LINKONCE_UNSET = 0,
83  LINKONCE_DISCARD,
84  LINKONCE_ONE_ONLY,
85  LINKONCE_SAME_SIZE,
86  LINKONCE_SAME_CONTENTS
87};
88
89extern void pop_insert PARAMS ((const pseudo_typeS *));
90extern unsigned int get_stab_string_offset
91  PARAMS ((const char *string, const char *stabstr_secname));
92extern char *demand_copy_C_string PARAMS ((int *len_pointer));
93extern char get_absolute_expression_and_terminator
94  PARAMS ((long *val_pointer));
95extern offsetT get_absolute_expression PARAMS ((void));
96extern unsigned int next_char_of_string PARAMS ((void));
97extern void s_mri_sect PARAMS ((char *));
98extern char *mri_comment_field PARAMS ((char *));
99extern void mri_comment_end PARAMS ((char *, int));
100extern void add_include_dir PARAMS ((char *path));
101extern void cons PARAMS ((int nbytes));
102extern void demand_empty_rest_of_line PARAMS ((void));
103extern void emit_expr PARAMS ((expressionS *exp, unsigned int nbytes));
104extern void emit_leb128_expr PARAMS ((expressionS *, int));
105extern void equals PARAMS ((char *sym_name, int reassign));
106extern void float_cons PARAMS ((int float_type));
107extern void ignore_rest_of_line PARAMS ((void));
108extern void discard_rest_of_line PARAMS ((void));
109extern int output_leb128 PARAMS ((char *, valueT, int sign));
110extern void pseudo_set PARAMS ((symbolS * symbolP));
111extern void read_a_source_file PARAMS ((char *name));
112extern void read_begin PARAMS ((void));
113extern void read_print_statistics PARAMS ((FILE *));
114extern int sizeof_leb128 PARAMS ((valueT, int sign));
115extern void stabs_generate_asm_file PARAMS ((void));
116extern void stabs_generate_asm_lineno PARAMS ((void));
117extern void stabs_generate_asm_func PARAMS ((const char *, const char *));
118extern void stabs_generate_asm_endfunc PARAMS ((const char *, const char *));
119extern void do_repeat PARAMS((int,const char *,const char *));
120extern void end_repeat PARAMS((int));
121
122extern void generate_lineno_debug PARAMS ((void));
123
124extern void s_abort PARAMS ((int));
125extern void s_align_bytes PARAMS ((int arg));
126extern void s_align_ptwo PARAMS ((int));
127extern void s_app_file PARAMS ((int));
128extern void s_app_line PARAMS ((int));
129extern void s_comm PARAMS ((int));
130extern void s_data PARAMS ((int));
131extern void s_desc PARAMS ((int));
132extern void s_else PARAMS ((int arg));
133extern void s_elseif PARAMS ((int arg));
134extern void s_end PARAMS ((int arg));
135extern void s_endif PARAMS ((int arg));
136extern void s_err PARAMS ((int));
137extern void s_fail PARAMS ((int));
138extern void s_fill PARAMS ((int));
139extern void s_float_space PARAMS ((int mult));
140extern void s_func PARAMS ((int));
141extern void do_s_func PARAMS ((int, const char *));
142extern void s_globl PARAMS ((int arg));
143extern void s_if PARAMS ((int arg));
144extern void s_ifc PARAMS ((int arg));
145extern void s_ifdef PARAMS ((int arg));
146extern void s_ifeqs PARAMS ((int arg));
147extern void s_ignore PARAMS ((int arg));
148extern void s_include PARAMS ((int arg));
149extern void s_irp PARAMS ((int arg));
150extern void s_lcomm PARAMS ((int needs_align));
151extern void s_lcomm_bytes PARAMS ((int needs_align));
152extern void s_leb128 PARAMS ((int sign));
153extern void s_linkonce PARAMS ((int));
154extern void s_lsym PARAMS ((int));
155extern void s_macro PARAMS ((int));
156extern void s_mexit PARAMS ((int));
157extern void s_mri PARAMS ((int));
158extern void s_mri_common PARAMS ((int));
159extern void s_org PARAMS ((int));
160extern void s_print PARAMS ((int));
161extern void s_purgem PARAMS ((int));
162extern void s_rept PARAMS ((int));
163extern void s_set PARAMS ((int));
164extern void s_space PARAMS ((int mult));
165extern void s_stab PARAMS ((int what));
166extern void s_struct PARAMS ((int));
167extern void s_text PARAMS ((int));
168extern void stringer PARAMS ((int append_zero));
169extern void s_xstab PARAMS ((int what));
170extern void s_rva PARAMS ((int));
171
172/* end of read.h */
173