1/* Declarations and definitions of codes relating to the DWARF symbolic
2   debugging information format.
3
4   Written by Ron Guilmette (rfg@netcom.com)
5
6Copyright 1992, 1993, 1995, 1999, 2005 Free Software Foundation, Inc.
7
8This file is part of GCC.
9
10GCC is free software; you can redistribute it and/or modify it under
11the terms of the GNU General Public License as published by the Free
12Software Foundation; either version 2, or (at your option) any later
13version.
14
15GCC is distributed in the hope that it will be useful, but WITHOUT ANY
16WARRANTY; without even the implied warranty of MERCHANTABILITY or
17FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18for more details.
19
20You should have received a copy of the GNU General Public License
21along with GCC; see the file COPYING.  If not, write to the Free
22Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
2302110-1301, USA.  */
24
25/* This file is derived from the DWARF specification (a public document)
26   Revision 1.0.1 (April 8, 1992) developed by the UNIX International
27   Programming Languages Special Interest Group (UI/PLSIG) and distributed
28   by UNIX International.  Copies of this specification are available from
29   UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.
30*/
31
32#ifndef _ELF_DWARF_H
33#define _ELF_DWARF_H
34
35/* Tag names and codes.  */
36
37enum dwarf_tag {
38    TAG_padding			= 0x0000,
39    TAG_array_type		= 0x0001,
40    TAG_class_type		= 0x0002,
41    TAG_entry_point		= 0x0003,
42    TAG_enumeration_type	= 0x0004,
43    TAG_formal_parameter	= 0x0005,
44    TAG_global_subroutine	= 0x0006,
45    TAG_global_variable		= 0x0007,
46    				/* 0x0008 -- reserved */
47				/* 0x0009 -- reserved */
48    TAG_label			= 0x000a,
49    TAG_lexical_block		= 0x000b,
50    TAG_local_variable		= 0x000c,
51    TAG_member			= 0x000d,
52				/* 0x000e -- reserved */
53    TAG_pointer_type		= 0x000f,
54    TAG_reference_type		= 0x0010,
55    TAG_compile_unit		= 0x0011,
56    TAG_string_type		= 0x0012,
57    TAG_structure_type		= 0x0013,
58    TAG_subroutine		= 0x0014,
59    TAG_subroutine_type		= 0x0015,
60    TAG_typedef			= 0x0016,
61    TAG_union_type		= 0x0017,
62    TAG_unspecified_parameters	= 0x0018,
63    TAG_variant			= 0x0019,
64    TAG_common_block		= 0x001a,
65    TAG_common_inclusion	= 0x001b,
66    TAG_inheritance		= 0x001c,
67    TAG_inlined_subroutine	= 0x001d,
68    TAG_module			= 0x001e,
69    TAG_ptr_to_member_type	= 0x001f,
70    TAG_set_type		= 0x0020,
71    TAG_subrange_type		= 0x0021,
72    TAG_with_stmt		= 0x0022,
73
74    /* GNU extensions */
75
76    TAG_format_label		= 0x8000,  /* for FORTRAN 77 and Fortran 90 */
77    TAG_namelist		= 0x8001,  /* For Fortran 90 */
78    TAG_function_template	= 0x8002,  /* for C++ */
79    TAG_class_template		= 0x8003   /* for C++ */
80};
81
82#define TAG_lo_user	0x8000  /* implementation-defined range start */
83#define TAG_hi_user	0xffff  /* implementation-defined range end */
84#define TAG_source_file TAG_compile_unit  /* for backward compatibility */
85
86/* Form names and codes.  */
87
88enum dwarf_form {
89    FORM_ADDR	= 0x1,
90    FORM_REF	= 0x2,
91    FORM_BLOCK2	= 0x3,
92    FORM_BLOCK4	= 0x4,
93    FORM_DATA2	= 0x5,
94    FORM_DATA4	= 0x6,
95    FORM_DATA8	= 0x7,
96    FORM_STRING	= 0x8
97};
98
99/* Attribute names and codes.  */
100
101enum dwarf_attribute {
102    AT_sibling			= (0x0010|FORM_REF),
103    AT_location			= (0x0020|FORM_BLOCK2),
104    AT_name			= (0x0030|FORM_STRING),
105    AT_fund_type		= (0x0050|FORM_DATA2),
106    AT_mod_fund_type		= (0x0060|FORM_BLOCK2),
107    AT_user_def_type		= (0x0070|FORM_REF),
108    AT_mod_u_d_type		= (0x0080|FORM_BLOCK2),
109    AT_ordering			= (0x0090|FORM_DATA2),
110    AT_subscr_data		= (0x00a0|FORM_BLOCK2),
111    AT_byte_size		= (0x00b0|FORM_DATA4),
112    AT_bit_offset		= (0x00c0|FORM_DATA2),
113    AT_bit_size			= (0x00d0|FORM_DATA4),
114				/* (0x00e0|FORM_xxxx) -- reserved */
115    AT_element_list		= (0x00f0|FORM_BLOCK4),
116    AT_stmt_list		= (0x0100|FORM_DATA4),
117    AT_low_pc			= (0x0110|FORM_ADDR),
118    AT_high_pc			= (0x0120|FORM_ADDR),
119    AT_language			= (0x0130|FORM_DATA4),
120    AT_member			= (0x0140|FORM_REF),
121    AT_discr			= (0x0150|FORM_REF),
122    AT_discr_value		= (0x0160|FORM_BLOCK2),
123				/* (0x0170|FORM_xxxx) -- reserved */
124				/* (0x0180|FORM_xxxx) -- reserved */
125    AT_string_length		= (0x0190|FORM_BLOCK2),
126    AT_common_reference		= (0x01a0|FORM_REF),
127    AT_comp_dir			= (0x01b0|FORM_STRING),
128        AT_const_value_string	= (0x01c0|FORM_STRING),
129        AT_const_value_data2	= (0x01c0|FORM_DATA2),
130        AT_const_value_data4	= (0x01c0|FORM_DATA4),
131        AT_const_value_data8	= (0x01c0|FORM_DATA8),
132        AT_const_value_block2	= (0x01c0|FORM_BLOCK2),
133        AT_const_value_block4	= (0x01c0|FORM_BLOCK4),
134    AT_containing_type		= (0x01d0|FORM_REF),
135        AT_default_value_addr	= (0x01e0|FORM_ADDR),
136        AT_default_value_data2	= (0x01e0|FORM_DATA2),
137        AT_default_value_data4	= (0x01e0|FORM_DATA4),
138        AT_default_value_data8	= (0x01e0|FORM_DATA8),
139        AT_default_value_string	= (0x01e0|FORM_STRING),
140    AT_friends			= (0x01f0|FORM_BLOCK2),
141    AT_inline			= (0x0200|FORM_STRING),
142    AT_is_optional		= (0x0210|FORM_STRING),
143        AT_lower_bound_ref	= (0x0220|FORM_REF),
144        AT_lower_bound_data2	= (0x0220|FORM_DATA2),
145        AT_lower_bound_data4	= (0x0220|FORM_DATA4),
146        AT_lower_bound_data8	= (0x0220|FORM_DATA8),
147    AT_private			= (0x0240|FORM_STRING),
148    AT_producer			= (0x0250|FORM_STRING),
149    AT_program			= (0x0230|FORM_STRING),
150    AT_protected		= (0x0260|FORM_STRING),
151    AT_prototyped		= (0x0270|FORM_STRING),
152    AT_public			= (0x0280|FORM_STRING),
153    AT_pure_virtual		= (0x0290|FORM_STRING),
154    AT_return_addr		= (0x02a0|FORM_BLOCK2),
155    AT_abstract_origin		= (0x02b0|FORM_REF),
156    AT_start_scope		= (0x02c0|FORM_DATA4),
157    AT_stride_size		= (0x02e0|FORM_DATA4),
158        AT_upper_bound_ref	= (0x02f0|FORM_REF),
159        AT_upper_bound_data2	= (0x02f0|FORM_DATA2),
160        AT_upper_bound_data4	= (0x02f0|FORM_DATA4),
161        AT_upper_bound_data8	= (0x02f0|FORM_DATA8),
162    AT_virtual			= (0x0300|FORM_STRING),
163
164    /* GNU extensions.  */
165
166    AT_sf_names			= (0x8000|FORM_DATA4),
167    AT_src_info			= (0x8010|FORM_DATA4),
168    AT_mac_info			= (0x8020|FORM_DATA4),
169    AT_src_coords		= (0x8030|FORM_DATA4),
170    AT_body_begin		= (0x8040|FORM_ADDR),
171    AT_body_end			= (0x8050|FORM_ADDR)
172};
173
174#define AT_lo_user	0x2000	/* implementation-defined range start */
175#define AT_hi_user	0x3ff0	/* implementation-defined range end */
176
177/* Location atom names and codes.  */
178
179enum dwarf_location_atom {
180    OP_REG	= 0x01,
181    OP_BASEREG	= 0x02,
182    OP_ADDR	= 0x03,
183    OP_CONST	= 0x04,
184    OP_DEREF2	= 0x05,
185    OP_DEREF4	= 0x06,
186    OP_ADD	= 0x07,
187
188    /* GNU extensions.  */
189
190    OP_MULT	= 0x80
191};
192
193#define OP_LO_USER	0x80  /* implementation-defined range start */
194#define OP_HI_USER	0xff  /* implementation-defined range end */
195
196/* Fundamental type names and codes.  */
197
198enum dwarf_fundamental_type {
199    FT_char		= 0x0001,
200    FT_signed_char	= 0x0002,
201    FT_unsigned_char	= 0x0003,
202    FT_short		= 0x0004,
203    FT_signed_short	= 0x0005,
204    FT_unsigned_short	= 0x0006,
205    FT_integer		= 0x0007,
206    FT_signed_integer	= 0x0008,
207    FT_unsigned_integer	= 0x0009,
208    FT_long		= 0x000a,
209    FT_signed_long	= 0x000b,
210    FT_unsigned_long	= 0x000c,
211    FT_pointer		= 0x000d,  /* an alias for (void *) */
212    FT_float		= 0x000e,
213    FT_dbl_prec_float	= 0x000f,
214    FT_ext_prec_float	= 0x0010,  /* breaks "classic" svr4 SDB */
215    FT_complex		= 0x0011,  /* breaks "classic" svr4 SDB */
216    FT_dbl_prec_complex	= 0x0012,  /* breaks "classic" svr4 SDB */
217			/* 0x0013 -- reserved */
218    FT_void		= 0x0014,
219    FT_boolean		= 0x0015,  /* breaks "classic" svr4 SDB */
220    FT_ext_prec_complex	= 0x0016,  /* breaks "classic" svr4 SDB */
221    FT_label		= 0x0017,
222
223    /* GNU extensions
224       The low order byte must indicate the size (in bytes) for the type.
225       All of these types will probably break "classic" svr4 SDB.  */
226
227    FT_long_long	= 0x8008,
228    FT_signed_long_long	= 0x8108,
229    FT_unsigned_long_long = 0x8208,
230
231    FT_int8		= 0x9001,
232    FT_signed_int8	= 0x9101,
233    FT_unsigned_int8	= 0x9201,
234    FT_int16		= 0x9302,
235    FT_signed_int16	= 0x9402,
236    FT_unsigned_int16	= 0x9502,
237    FT_int32		= 0x9604,
238    FT_signed_int32	= 0x9704,
239    FT_unsigned_int32	= 0x9804,
240    FT_int64		= 0x9908,
241    FT_signed_int64	= 0x9a08,
242    FT_unsigned_int64	= 0x9b08,
243    FT_int128		= 0x9c10,
244    FT_signed_int128	= 0x9d10,
245    FT_unsigned_int128	= 0x9e10,
246
247    FT_real32		= 0xa004,
248    FT_real64		= 0xa108,
249    FT_real96		= 0xa20c,
250    FT_real128		= 0xa310
251};
252
253#define FT_lo_user	0x8000  /* implementation-defined range start */
254#define FT_hi_user	0xffff  /* implementation defined range end */
255
256/* Type modifier names and codes.  */
257
258enum dwarf_type_modifier {
259    MOD_pointer_to	= 0x01,
260    MOD_reference_to	= 0x02,
261    MOD_const		= 0x03,
262    MOD_volatile	= 0x04
263};
264
265#define MOD_lo_user	0x80  /* implementation-defined range start */
266#define MOD_hi_user	0xff  /* implementation-defined range end */
267
268/* Array ordering names and codes.  */
269
270enum dwarf_array_dim_ordering {
271    ORD_row_major	= 0,
272    ORD_col_major	= 1
273};
274
275/* Array subscript format names and codes.  */
276
277enum dwarf_subscr_data_formats {
278    FMT_FT_C_C	= 0x0,
279    FMT_FT_C_X	= 0x1,
280    FMT_FT_X_C	= 0x2,
281    FMT_FT_X_X	= 0x3,
282    FMT_UT_C_C	= 0x4,
283    FMT_UT_C_X	= 0x5,
284    FMT_UT_X_C	= 0x6,
285    FMT_UT_X_X	= 0x7,
286    FMT_ET	= 0x8
287};
288
289/* Derived from above for ease of use.  */
290
291#define FMT_CODE(_FUNDAMENTAL_TYPE_P, _LB_CONST_P, _UB_CONST_P) \
292 (((_FUNDAMENTAL_TYPE_P) ? 0 : 4)	\
293  | ((_LB_CONST_P) ? 0 : 2)		\
294  | ((_UB_CONST_P) ? 0 : 1))
295
296/* Source language names and codes.  */
297
298enum dwarf_source_language {
299    LANG_C89		= 0x00000001,
300    LANG_C		= 0x00000002,
301    LANG_ADA83		= 0x00000003,
302    LANG_C_PLUS_PLUS	= 0x00000004,
303    LANG_COBOL74	= 0x00000005,
304    LANG_COBOL85	= 0x00000006,
305    LANG_FORTRAN77	= 0x00000007,
306    LANG_FORTRAN90	= 0x00000008,
307    LANG_PASCAL83	= 0x00000009,
308    LANG_MODULA2	= 0x0000000a,
309    LANG_JAVA		= 0x0000000b
310};
311
312#define LANG_lo_user	0x00008000  /* implementation-defined range start */
313#define LANG_hi_user	0x0000ffff  /* implementation-defined range end */
314
315/* Names and codes for GNU "macinfo" extension.  */
316
317enum dwarf_macinfo_record_type {
318    MACINFO_start	= 's',
319    MACINFO_resume	= 'r',
320    MACINFO_define	= 'd',
321    MACINFO_undef	= 'u'
322};
323
324#endif /* _ELF_DWARF_H */
325