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1.1 root 1: /* Declarations and definitions of codes relating to the DWARF symbolic
2: debugging information format.
3:
4: Written by Ron Guilmette ([email protected])
5:
6: Copyright (C) 1992 Free Software Foundation, Inc.
7:
8: This file is part of GNU CC.
9:
10: GNU CC is free software; you can redistribute it and/or modify
11: it under the terms of the GNU General Public License as published by
12: the Free Software Foundation; either version 2, or (at your option)
13: any later version.
14:
15: GNU CC is distributed in the hope that it will be useful,
16: but WITHOUT ANY WARRANTY; without even the implied warranty of
17: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: GNU General Public License for more details.
19:
20: You should have received a copy of the GNU General Public License
21: along with GNU CC; see the file COPYING. If not, write to
22: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23:
24: /* This file is derived from the DWARF specification (a public document)
25: Revision 1.0.1 (April 8, 1992) developed by the UNIX International
26: Programming Languages Special Interest Group (UI/PLSIG) and distributed
27: by UNIX International. Copies of this specification are available from
28: UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.
29: */
30:
31: /* Tag names and codes. */
32:
33: enum dwarf_tag {
34: TAG_padding = 0x0000,
35: TAG_array_type = 0x0001,
36: TAG_class_type = 0x0002,
37: TAG_entry_point = 0x0003,
38: TAG_enumeration_type = 0x0004,
39: TAG_formal_parameter = 0x0005,
40: TAG_global_subroutine = 0x0006,
41: TAG_global_variable = 0x0007,
42: /* 0x0008 -- reserved */
43: /* 0x0009 -- reserved */
44: TAG_label = 0x000a,
45: TAG_lexical_block = 0x000b,
46: TAG_local_variable = 0x000c,
47: TAG_member = 0x000d,
48: /* 0x000e -- reserved */
49: TAG_pointer_type = 0x000f,
50: TAG_reference_type = 0x0010,
51: TAG_compile_unit = 0x0011,
52: TAG_string_type = 0x0012,
53: TAG_structure_type = 0x0013,
54: TAG_subroutine = 0x0014,
55: TAG_subroutine_type = 0x0015,
56: TAG_typedef = 0x0016,
57: TAG_union_type = 0x0017,
58: TAG_unspecified_parameters = 0x0018,
59: TAG_variant = 0x0019,
60: TAG_common_block = 0x001a,
61: TAG_common_inclusion = 0x001b,
62: TAG_inheritance = 0x001c,
63: TAG_inlined_subroutine = 0x001d,
64: TAG_module = 0x001e,
65: TAG_ptr_to_member_type = 0x001f,
66: TAG_set_type = 0x0020,
67: TAG_subrange_type = 0x0021,
68: TAG_with_stmt = 0x0022,
69:
70: /* GNU extensions */
71:
72: TAG_format_label = 0x8000, /* for FORTRAN 77 and Fortran 90 */
73: TAG_namelist = 0x8001, /* For Fortran 90 */
74: TAG_function_template = 0x8002, /* for C++ */
75: TAG_class_template = 0x8003 /* for C++ */
76: };
77:
78: #define TAG_lo_user 0x8000 /* implementation-defined range start */
79: #define TAG_hi_user 0xffff /* implementation-defined range end */
80: #define TAG_source_file TAG_compile_unit /* for backward compatibility */
81:
82: /* Form names and codes. */
83:
84: enum dwarf_form {
85: FORM_ADDR = 0x1,
86: FORM_REF = 0x2,
87: FORM_BLOCK2 = 0x3,
88: FORM_BLOCK4 = 0x4,
89: FORM_DATA2 = 0x5,
90: FORM_DATA4 = 0x6,
91: FORM_DATA8 = 0x7,
92: FORM_STRING = 0x8
93: };
94:
95: /* Attribute names and codes. */
96:
97: enum dwarf_attribute {
98: AT_sibling = (0x0010|FORM_REF),
99: AT_location = (0x0020|FORM_BLOCK2),
100: AT_name = (0x0030|FORM_STRING),
101: AT_fund_type = (0x0050|FORM_DATA2),
102: AT_mod_fund_type = (0x0060|FORM_BLOCK2),
103: AT_user_def_type = (0x0070|FORM_REF),
104: AT_mod_u_d_type = (0x0080|FORM_BLOCK2),
105: AT_ordering = (0x0090|FORM_DATA2),
106: AT_subscr_data = (0x00a0|FORM_BLOCK2),
107: AT_byte_size = (0x00b0|FORM_DATA4),
108: AT_bit_offset = (0x00c0|FORM_DATA2),
109: AT_bit_size = (0x00d0|FORM_DATA4),
110: /* (0x00e0|FORM_xxxx) -- reserved */
111: AT_element_list = (0x00f0|FORM_BLOCK4),
112: AT_stmt_list = (0x0100|FORM_DATA4),
113: AT_low_pc = (0x0110|FORM_ADDR),
114: AT_high_pc = (0x0120|FORM_ADDR),
115: AT_language = (0x0130|FORM_DATA4),
116: AT_member = (0x0140|FORM_REF),
117: AT_discr = (0x0150|FORM_REF),
118: AT_discr_value = (0x0160|FORM_BLOCK2),
119: /* (0x0170|FORM_xxxx) -- reserved */
120: /* (0x0180|FORM_xxxx) -- reserved */
121: AT_string_length = (0x0190|FORM_BLOCK2),
122: AT_common_reference = (0x01a0|FORM_REF),
123: AT_comp_dir = (0x01b0|FORM_STRING),
124: AT_const_value_string = (0x01c0|FORM_STRING),
125: AT_const_value_data2 = (0x01c0|FORM_DATA2),
126: AT_const_value_data4 = (0x01c0|FORM_DATA4),
127: AT_const_value_data8 = (0x01c0|FORM_DATA8),
128: AT_const_value_block2 = (0x01c0|FORM_BLOCK2),
129: AT_const_value_block4 = (0x01c0|FORM_BLOCK4),
130: AT_containing_type = (0x01d0|FORM_REF),
131: AT_default_value_addr = (0x01e0|FORM_ADDR),
132: AT_default_value_data2 = (0x01e0|FORM_DATA2),
133: AT_default_value_data4 = (0x01e0|FORM_DATA4),
134: AT_default_value_data8 = (0x01e0|FORM_DATA8),
135: AT_default_value_string = (0x01e0|FORM_STRING),
136: AT_friends = (0x01f0|FORM_BLOCK2),
137: AT_inline = (0x0200|FORM_STRING),
138: AT_is_optional = (0x0210|FORM_STRING),
139: AT_lower_bound_ref = (0x0220|FORM_REF),
140: AT_lower_bound_data2 = (0x0220|FORM_DATA2),
141: AT_lower_bound_data4 = (0x0220|FORM_DATA4),
142: AT_lower_bound_data8 = (0x0220|FORM_DATA8),
143: AT_private = (0x0240|FORM_STRING),
144: AT_producer = (0x0250|FORM_STRING),
145: AT_program = (0x0230|FORM_STRING),
146: AT_protected = (0x0260|FORM_STRING),
147: AT_prototyped = (0x0270|FORM_STRING),
148: AT_public = (0x0280|FORM_STRING),
149: AT_pure_virtual = (0x0290|FORM_STRING),
150: AT_return_addr = (0x02a0|FORM_BLOCK2),
151: AT_abstract_origin = (0x02b0|FORM_REF),
152: AT_start_scope = (0x02c0|FORM_DATA4),
153: AT_stride_size = (0x02e0|FORM_DATA4),
154: AT_upper_bound_ref = (0x02f0|FORM_REF),
155: AT_upper_bound_data2 = (0x02f0|FORM_DATA2),
156: AT_upper_bound_data4 = (0x02f0|FORM_DATA4),
157: AT_upper_bound_data8 = (0x02f0|FORM_DATA8),
158: AT_virtual = (0x0300|FORM_STRING),
159:
160: /* GNU extensions. */
161:
162: AT_sf_names = (0x8000|FORM_DATA4),
163: AT_src_info = (0x8010|FORM_DATA4),
164: AT_mac_info = (0x8020|FORM_DATA4),
165: AT_src_coords = (0x8030|FORM_DATA4),
166: AT_body_begin = (0x8040|FORM_ADDR),
167: AT_body_end = (0x8050|FORM_ADDR)
168: };
169:
170: #define AT_lo_user 0x2000 /* implementation-defined range start */
171: #define AT_hi_user 0x3ff0 /* implementation-defined range end */
172:
173: /* Location atom names and codes. */
174:
175: enum dwarf_location_atom {
176: OP_REG = 0x01,
177: OP_BASEREG = 0x02,
178: OP_ADDR = 0x03,
179: OP_CONST = 0x04,
180: OP_DEREF2 = 0x05,
181: OP_DEREF4 = 0x06,
182: OP_ADD = 0x07
183: };
184:
185: #define OP_LO_USER 0x80 /* implementation-defined range start */
186: #define OP_HI_USER 0xff /* implementation-defined range end */
187:
188: /* Fundamental type names and codes. */
189:
190: enum dwarf_fundamental_type {
191: FT_char = 0x0001,
192: FT_signed_char = 0x0002,
193: FT_unsigned_char = 0x0003,
194: FT_short = 0x0004,
195: FT_signed_short = 0x0005,
196: FT_unsigned_short = 0x0006,
197: FT_integer = 0x0007,
198: FT_signed_integer = 0x0008,
199: FT_unsigned_integer = 0x0009,
200: FT_long = 0x000a,
201: FT_signed_long = 0x000b,
202: FT_unsigned_long = 0x000c,
203: FT_pointer = 0x000d, /* an alias for (void *) */
204: FT_float = 0x000e,
205: FT_dbl_prec_float = 0x000f,
206: FT_ext_prec_float = 0x0010, /* breaks "classic" svr4 SDB */
207: FT_complex = 0x0011, /* breaks "classic" svr4 SDB */
208: FT_dbl_prec_complex = 0x0012, /* breaks "classic" svr4 SDB */
209: /* 0x0013 -- reserved */
210: FT_void = 0x0014,
211: FT_boolean = 0x0015, /* breaks "classic" svr4 SDB */
212: FT_ext_prec_complex = 0x0016, /* breaks "classic" svr4 SDB */
213: FT_label = 0x0017,
214:
215: /* GNU extensions
216: The low order byte must indicate the size (in bytes) for the type.
217: All of these types will probably break "classic" svr4 SDB */
218:
219: FT_long_long = 0x8008,
220: FT_signed_long_long = 0x8108,
221: FT_unsigned_long_long = 0x8208,
222:
223: FT_int8 = 0x9001,
224: FT_signed_int8 = 0x9101,
225: FT_unsigned_int8 = 0x9201,
226: FT_int16 = 0x9302,
227: FT_signed_int16 = 0x9402,
228: FT_unsigned_int16 = 0x9502,
229: FT_int32 = 0x9604,
230: FT_signed_int32 = 0x9704,
231: FT_unsigned_int32 = 0x9804,
232: FT_int64 = 0x9908,
233: FT_signed_int64 = 0x9a08,
234: FT_unsigned_int64 = 0x9b08,
235:
236: FT_real32 = 0xa004,
237: FT_real64 = 0xa108,
238: FT_real96 = 0xa20c,
239: FT_real128 = 0xa310
240: };
241:
242: #define FT_lo_user 0x8000 /* implementation-defined range start */
243: #define FT_hi_user 0xffff /* implementation defined range end */
244:
245: /* Type modifier names and codes. */
246:
247: enum dwarf_type_modifier {
248: MOD_pointer_to = 0x01,
249: MOD_reference_to = 0x02,
250: MOD_const = 0x03,
251: MOD_volatile = 0x04
252: };
253:
254: #define MOD_lo_user 0x80 /* implementation-defined range start */
255: #define MOD_hi_user 0xff /* implementation-defined range end */
256:
257: /* Array ordering names and codes. */
258:
259: enum dwarf_array_dim_ordering {
260: ORD_row_major = 0,
261: ORD_col_major = 1
262: };
263:
264: /* Array subscript format names and codes. */
265:
266: enum dwarf_subscr_data_formats {
267: FMT_FT_C_C = 0x0,
268: FMT_FT_C_X = 0x1,
269: FMT_FT_X_C = 0x2,
270: FMT_FT_X_X = 0x3,
271: FMT_UT_C_C = 0x4,
272: FMT_UT_C_X = 0x5,
273: FMT_UT_X_C = 0x6,
274: FMT_UT_X_X = 0x7,
275: FMT_ET = 0x8
276: };
277:
278: /* Derived from above for ease of use. */
279:
280: #define FMT_CODE(_FUNDAMENTAL_TYPE_P, _UB_CONST_P, _LB_CONST_P) \
281: (((_FUNDAMENTAL_TYPE_P) ? 0 : 4) \
282: | ((_UB_CONST_P) ? 0 : 2) \
283: | ((_LB_CONST_P) ? 0 : 1))
284:
285: /* Source language names and codes. */
286:
287: enum dwarf_source_language {
288: LANG_C89 = 0x00000001,
289: LANG_C = 0x00000002,
290: LANG_ADA83 = 0x00000003,
291: LANG_C_PLUS_PLUS = 0x00000004,
292: LANG_COBOL74 = 0x00000005,
293: LANG_COBOL85 = 0x00000006,
294: LANG_FORTRAN77 = 0x00000007,
295: LANG_FORTRAN90 = 0x00000008,
296: LANG_PASCAL83 = 0x00000009,
297: LANG_MODULA2 = 0x0000000a
298: };
299:
300: #define LANG_lo_user 0x00008000 /* implementation-defined range start */
301: #define LANG_hi_user 0x0000ffff /* implementation-defined range end */
302:
303: /* Names and codes for GNU "macinfo" extension. */
304:
305: enum dwarf_macinfo_record_type {
306: MACINFO_start = 's',
307: MACINFO_resume = 'r',
308: MACINFO_define = 'd',
309: MACINFO_undef = 'u'
310: };
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