dwarf2.h revision 33965 
1/* Declarations and definitions of codes relating to the DWARF symbolic
2   debugging information format.
3   Copyright (C) 1992, 1993, 1995, 1996 Free Software Foundation, Inc.
4
5   Written by Gary Funck (gary@intrepid.com) The Ada Joint Program
6   Office (AJPO), Florida State Unviversity and Silicon Graphics Inc.
7   provided support for this effort -- June 21, 1995.
8
9   Derived from the DWARF 1 implementation written by Ron Guilmette
10   (rfg@netcom.com), November 1990.
11
12This file is part of GNU CC.
13
14GNU CC is free software; you can redistribute it and/or modify it
15under the terms of the GNU General Public License as published by the
16Free Software Foundation; either version 2, or (at your option) any
17later version.
18
19GNU CC is distributed in the hope that it will be useful, but WITHOUT
20ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
22for more details.
23
24You should have received a copy of the GNU General Public License
25along with GNU CC; see the file COPYING.  If not, write to the Free
26Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
27
28/* This file is derived from the DWARF specification (a public document)
29   Revision 2.0.0 (July 27, 1993) developed by the UNIX International
30   Programming Languages Special Interest Group (UI/PLSIG) and distributed
31   by UNIX International.  Copies of this specification are available from
32   UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.  */
33
34#ifndef _ELF_DWARF2_H
35#define _ELF_DWARF2_H
36
37/* Tag names and codes.  */
38
39enum dwarf_tag
40  {
41    DW_TAG_padding = 0x00,
42    DW_TAG_array_type = 0x01,
43    DW_TAG_class_type = 0x02,
44    DW_TAG_entry_point = 0x03,
45    DW_TAG_enumeration_type = 0x04,
46    DW_TAG_formal_parameter = 0x05,
47    DW_TAG_imported_declaration = 0x08,
48    DW_TAG_label = 0x0a,
49    DW_TAG_lexical_block = 0x0b,
50    DW_TAG_member = 0x0d,
51    DW_TAG_pointer_type = 0x0f,
52    DW_TAG_reference_type = 0x10,
53    DW_TAG_compile_unit = 0x11,
54    DW_TAG_string_type = 0x12,
55    DW_TAG_structure_type = 0x13,
56    DW_TAG_subroutine_type = 0x15,
57    DW_TAG_typedef = 0x16,
58    DW_TAG_union_type = 0x17,
59    DW_TAG_unspecified_parameters = 0x18,
60    DW_TAG_variant = 0x19,
61    DW_TAG_common_block = 0x1a,
62    DW_TAG_common_inclusion = 0x1b,
63    DW_TAG_inheritance = 0x1c,
64    DW_TAG_inlined_subroutine = 0x1d,
65    DW_TAG_module = 0x1e,
66    DW_TAG_ptr_to_member_type = 0x1f,
67    DW_TAG_set_type = 0x20,
68    DW_TAG_subrange_type = 0x21,
69    DW_TAG_with_stmt = 0x22,
70    DW_TAG_access_declaration = 0x23,
71    DW_TAG_base_type = 0x24,
72    DW_TAG_catch_block = 0x25,
73    DW_TAG_const_type = 0x26,
74    DW_TAG_constant = 0x27,
75    DW_TAG_enumerator = 0x28,
76    DW_TAG_file_type = 0x29,
77    DW_TAG_friend = 0x2a,
78    DW_TAG_namelist = 0x2b,
79    DW_TAG_namelist_item = 0x2c,
80    DW_TAG_packed_type = 0x2d,
81    DW_TAG_subprogram = 0x2e,
82    DW_TAG_template_type_param = 0x2f,
83    DW_TAG_template_value_param = 0x30,
84    DW_TAG_thrown_type = 0x31,
85    DW_TAG_try_block = 0x32,
86    DW_TAG_variant_part = 0x33,
87    DW_TAG_variable = 0x34,
88    DW_TAG_volatile_type = 0x35,
89    /* SGI/MIPS Extensions */
90    DW_TAG_MIPS_loop = 0x4081,
91    /* GNU extensions */
92    DW_TAG_format_label = 0x4101,	/* for FORTRAN 77 and Fortran 90 */
93    DW_TAG_function_template = 0x4102,	/* for C++ */
94    DW_TAG_class_template = 0x4103	/* for C++ */
95  };
96
97#define DW_TAG_lo_user	0x4080
98#define DW_TAG_hi_user	0xffff
99
100/* flag that tells whether entry has a child or not */
101#define DW_children_no   0
102#define	DW_children_yes  1
103
104/* Form names and codes.  */
105enum dwarf_form
106  {
107    DW_FORM_addr = 0x01,
108    DW_FORM_block2 = 0x03,
109    DW_FORM_block4 = 0x04,
110    DW_FORM_data2 = 0x05,
111    DW_FORM_data4 = 0x06,
112    DW_FORM_data8 = 0x07,
113    DW_FORM_string = 0x08,
114    DW_FORM_block = 0x09,
115    DW_FORM_block1 = 0x0a,
116    DW_FORM_data1 = 0x0b,
117    DW_FORM_flag = 0x0c,
118    DW_FORM_sdata = 0x0d,
119    DW_FORM_strp = 0x0e,
120    DW_FORM_udata = 0x0f,
121    DW_FORM_ref_addr = 0x10,
122    DW_FORM_ref1 = 0x11,
123    DW_FORM_ref2 = 0x12,
124    DW_FORM_ref4 = 0x13,
125    DW_FORM_ref8 = 0x14,
126    DW_FORM_ref_udata = 0x15,
127    DW_FORM_indirect = 0x16
128  };
129
130/* Attribute names and codes.  */
131
132enum dwarf_attribute
133  {
134    DW_AT_sibling = 0x01,
135    DW_AT_location = 0x02,
136    DW_AT_name = 0x03,
137    DW_AT_ordering = 0x09,
138    DW_AT_subscr_data = 0x0a,
139    DW_AT_byte_size = 0x0b,
140    DW_AT_bit_offset = 0x0c,
141    DW_AT_bit_size = 0x0d,
142    DW_AT_element_list = 0x0f,
143    DW_AT_stmt_list = 0x10,
144    DW_AT_low_pc = 0x11,
145    DW_AT_high_pc = 0x12,
146    DW_AT_language = 0x13,
147    DW_AT_member = 0x14,
148    DW_AT_discr = 0x15,
149    DW_AT_discr_value = 0x16,
150    DW_AT_visibility = 0x17,
151    DW_AT_import = 0x18,
152    DW_AT_string_length = 0x19,
153    DW_AT_common_reference = 0x1a,
154    DW_AT_comp_dir = 0x1b,
155    DW_AT_const_value = 0x1c,
156    DW_AT_containing_type = 0x1d,
157    DW_AT_default_value = 0x1e,
158    DW_AT_inline = 0x20,
159    DW_AT_is_optional = 0x21,
160    DW_AT_lower_bound = 0x22,
161    DW_AT_producer = 0x25,
162    DW_AT_prototyped = 0x27,
163    DW_AT_return_addr = 0x2a,
164    DW_AT_start_scope = 0x2c,
165    DW_AT_stride_size = 0x2e,
166    DW_AT_upper_bound = 0x2f,
167    DW_AT_abstract_origin = 0x31,
168    DW_AT_accessibility = 0x32,
169    DW_AT_address_class = 0x33,
170    DW_AT_artificial = 0x34,
171    DW_AT_base_types = 0x35,
172    DW_AT_calling_convention = 0x36,
173    DW_AT_count = 0x37,
174    DW_AT_data_member_location = 0x38,
175    DW_AT_decl_column = 0x39,
176    DW_AT_decl_file = 0x3a,
177    DW_AT_decl_line = 0x3b,
178    DW_AT_declaration = 0x3c,
179    DW_AT_discr_list = 0x3d,
180    DW_AT_encoding = 0x3e,
181    DW_AT_external = 0x3f,
182    DW_AT_frame_base = 0x40,
183    DW_AT_friend = 0x41,
184    DW_AT_identifier_case = 0x42,
185    DW_AT_macro_info = 0x43,
186    DW_AT_namelist_items = 0x44,
187    DW_AT_priority = 0x45,
188    DW_AT_segment = 0x46,
189    DW_AT_specification = 0x47,
190    DW_AT_static_link = 0x48,
191    DW_AT_type = 0x49,
192    DW_AT_use_location = 0x4a,
193    DW_AT_variable_parameter = 0x4b,
194    DW_AT_virtuality = 0x4c,
195    DW_AT_vtable_elem_location = 0x4d,
196    /* SGI/MIPS Extensions */
197    DW_AT_MIPS_fde = 0x2001,
198    DW_AT_MIPS_loop_begin = 0x2002,
199    DW_AT_MIPS_tail_loop_begin = 0x2003,
200    DW_AT_MIPS_epilog_begin = 0x2004,
201    DW_AT_MIPS_loop_unroll_factor = 0x2005,
202    DW_AT_MIPS_software_pipeline_depth = 0x2006,
203    DW_AT_MIPS_linkage_name = 0x2007,
204    DW_AT_MIPS_stride = 0x2008,
205    DW_AT_MIPS_abstract_name = 0x2009,
206    DW_AT_MIPS_clone_origin = 0x200a,
207    DW_AT_MIPS_has_inlines = 0x200b,
208    /* GNU extensions.  */
209    DW_AT_sf_names = 0x2101,
210    DW_AT_src_info = 0x2102,
211    DW_AT_mac_info = 0x2103,
212    DW_AT_src_coords = 0x2104,
213    DW_AT_body_begin = 0x2105,
214    DW_AT_body_end = 0x2106
215  };
216
217#define DW_AT_lo_user	0x2000	/* implementation-defined range start */
218#define DW_AT_hi_user	0x3ff0	/* implementation-defined range end */
219
220/* Location atom names and codes.  */
221
222enum dwarf_location_atom
223  {
224    DW_OP_addr = 0x03,
225    DW_OP_deref = 0x06,
226    DW_OP_const1u = 0x08,
227    DW_OP_const1s = 0x09,
228    DW_OP_const2u = 0x0a,
229    DW_OP_const2s = 0x0b,
230    DW_OP_const4u = 0x0c,
231    DW_OP_const4s = 0x0d,
232    DW_OP_const8u = 0x0e,
233    DW_OP_const8s = 0x0f,
234    DW_OP_constu = 0x10,
235    DW_OP_consts = 0x11,
236    DW_OP_dup = 0x12,
237    DW_OP_drop = 0x13,
238    DW_OP_over = 0x14,
239    DW_OP_pick = 0x15,
240    DW_OP_swap = 0x16,
241    DW_OP_rot = 0x17,
242    DW_OP_xderef = 0x18,
243    DW_OP_abs = 0x19,
244    DW_OP_and = 0x1a,
245    DW_OP_div = 0x1b,
246    DW_OP_minus = 0x1c,
247    DW_OP_mod = 0x1d,
248    DW_OP_mul = 0x1e,
249    DW_OP_neg = 0x1f,
250    DW_OP_not = 0x20,
251    DW_OP_or = 0x21,
252    DW_OP_plus = 0x22,
253    DW_OP_plus_uconst = 0x23,
254    DW_OP_shl = 0x24,
255    DW_OP_shr = 0x25,
256    DW_OP_shra = 0x26,
257    DW_OP_xor = 0x27,
258    DW_OP_bra = 0x28,
259    DW_OP_eq = 0x29,
260    DW_OP_ge = 0x2a,
261    DW_OP_gt = 0x2b,
262    DW_OP_le = 0x2c,
263    DW_OP_lt = 0x2d,
264    DW_OP_ne = 0x2e,
265    DW_OP_skip = 0x2f,
266    DW_OP_lit0 = 0x30,
267    DW_OP_lit1 = 0x31,
268    DW_OP_lit2 = 0x32,
269    DW_OP_lit3 = 0x33,
270    DW_OP_lit4 = 0x34,
271    DW_OP_lit5 = 0x35,
272    DW_OP_lit6 = 0x36,
273    DW_OP_lit7 = 0x37,
274    DW_OP_lit8 = 0x38,
275    DW_OP_lit9 = 0x39,
276    DW_OP_lit10 = 0x3a,
277    DW_OP_lit11 = 0x3b,
278    DW_OP_lit12 = 0x3c,
279    DW_OP_lit13 = 0x3d,
280    DW_OP_lit14 = 0x3e,
281    DW_OP_lit15 = 0x3f,
282    DW_OP_lit16 = 0x40,
283    DW_OP_lit17 = 0x41,
284    DW_OP_lit18 = 0x42,
285    DW_OP_lit19 = 0x43,
286    DW_OP_lit20 = 0x44,
287    DW_OP_lit21 = 0x45,
288    DW_OP_lit22 = 0x46,
289    DW_OP_lit23 = 0x47,
290    DW_OP_lit24 = 0x48,
291    DW_OP_lit25 = 0x49,
292    DW_OP_lit26 = 0x4a,
293    DW_OP_lit27 = 0x4b,
294    DW_OP_lit28 = 0x4c,
295    DW_OP_lit29 = 0x4d,
296    DW_OP_lit30 = 0x4e,
297    DW_OP_lit31 = 0x4f,
298    DW_OP_reg0 = 0x50,
299    DW_OP_reg1 = 0x51,
300    DW_OP_reg2 = 0x52,
301    DW_OP_reg3 = 0x53,
302    DW_OP_reg4 = 0x54,
303    DW_OP_reg5 = 0x55,
304    DW_OP_reg6 = 0x56,
305    DW_OP_reg7 = 0x57,
306    DW_OP_reg8 = 0x58,
307    DW_OP_reg9 = 0x59,
308    DW_OP_reg10 = 0x5a,
309    DW_OP_reg11 = 0x5b,
310    DW_OP_reg12 = 0x5c,
311    DW_OP_reg13 = 0x5d,
312    DW_OP_reg14 = 0x5e,
313    DW_OP_reg15 = 0x5f,
314    DW_OP_reg16 = 0x60,
315    DW_OP_reg17 = 0x61,
316    DW_OP_reg18 = 0x62,
317    DW_OP_reg19 = 0x63,
318    DW_OP_reg20 = 0x64,
319    DW_OP_reg21 = 0x65,
320    DW_OP_reg22 = 0x66,
321    DW_OP_reg23 = 0x67,
322    DW_OP_reg24 = 0x68,
323    DW_OP_reg25 = 0x69,
324    DW_OP_reg26 = 0x6a,
325    DW_OP_reg27 = 0x6b,
326    DW_OP_reg28 = 0x6c,
327    DW_OP_reg29 = 0x6d,
328    DW_OP_reg30 = 0x6e,
329    DW_OP_reg31 = 0x6f,
330    DW_OP_breg0 = 0x70,
331    DW_OP_breg1 = 0x71,
332    DW_OP_breg2 = 0x72,
333    DW_OP_breg3 = 0x73,
334    DW_OP_breg4 = 0x74,
335    DW_OP_breg5 = 0x75,
336    DW_OP_breg6 = 0x76,
337    DW_OP_breg7 = 0x77,
338    DW_OP_breg8 = 0x78,
339    DW_OP_breg9 = 0x79,
340    DW_OP_breg10 = 0x7a,
341    DW_OP_breg11 = 0x7b,
342    DW_OP_breg12 = 0x7c,
343    DW_OP_breg13 = 0x7d,
344    DW_OP_breg14 = 0x7e,
345    DW_OP_breg15 = 0x7f,
346    DW_OP_breg16 = 0x80,
347    DW_OP_breg17 = 0x81,
348    DW_OP_breg18 = 0x82,
349    DW_OP_breg19 = 0x83,
350    DW_OP_breg20 = 0x84,
351    DW_OP_breg21 = 0x85,
352    DW_OP_breg22 = 0x86,
353    DW_OP_breg23 = 0x87,
354    DW_OP_breg24 = 0x88,
355    DW_OP_breg25 = 0x89,
356    DW_OP_breg26 = 0x8a,
357    DW_OP_breg27 = 0x8b,
358    DW_OP_breg28 = 0x8c,
359    DW_OP_breg29 = 0x8d,
360    DW_OP_breg30 = 0x8e,
361    DW_OP_breg31 = 0x8f,
362    DW_OP_regx = 0x90,
363    DW_OP_fbreg = 0x91,
364    DW_OP_bregx = 0x92,
365    DW_OP_piece = 0x93,
366    DW_OP_deref_size = 0x94,
367    DW_OP_xderef_size = 0x95,
368    DW_OP_nop = 0x96
369  };
370
371#define DW_OP_lo_user	0x80	/* implementation-defined range start */
372#define DW_OP_hi_user	0xff	/* implementation-defined range end */
373
374/* Type encodings.  */
375
376enum dwarf_type
377  {
378    DW_ATE_void = 0x0,
379    DW_ATE_address = 0x1,
380    DW_ATE_boolean = 0x2,
381    DW_ATE_complex_float = 0x3,
382    DW_ATE_float = 0x4,
383    DW_ATE_signed = 0x5,
384    DW_ATE_signed_char = 0x6,
385    DW_ATE_unsigned = 0x7,
386    DW_ATE_unsigned_char = 0x8
387  };
388
389#define	DW_ATE_lo_user 0x80
390#define	DW_ATE_hi_user 0xff
391
392/* Array ordering names and codes.  */
393enum dwarf_array_dim_ordering
394  {
395    DW_ORD_row_major = 0,
396    DW_ORD_col_major = 1
397  };
398
399/* access attribute */
400enum dwarf_access_attribute
401  {
402    DW_ACCESS_public = 1,
403    DW_ACCESS_protected = 2,
404    DW_ACCESS_private = 3
405  };
406
407/* visibility */
408enum dwarf_visibility_attribute
409  {
410    DW_VIS_local = 1,
411    DW_VIS_exported = 2,
412    DW_VIS_qualified = 3
413  };
414
415/* virtuality */
416enum dwarf_virtuality_attribute
417  {
418    DW_VIRTUALITY_none = 0,
419    DW_VIRTUALITY_virtual = 1,
420    DW_VIRTUALITY_pure_virtual = 2
421  };
422
423/* case sensitivity */
424enum dwarf_id_case
425  {
426    DW_ID_case_sensitive = 0,
427    DW_ID_up_case = 1,
428    DW_ID_down_case = 2,
429    DW_ID_case_insensitive = 3
430  };
431
432/* calling convention */
433enum dwarf_calling_convention
434  {
435    DW_CC_normal = 0x1,
436    DW_CC_program = 0x2,
437    DW_CC_nocall = 0x3
438  };
439
440#define DW_CC_lo_user 0x40
441#define DW_CC_hi_user 0xff
442
443/* inline attribute */
444enum dwarf_inline_attribute
445  {
446    DW_INL_not_inlined = 0,
447    DW_INL_inlined = 1,
448    DW_INL_declared_not_inlined = 2,
449    DW_INL_declared_inlined = 3
450  };
451
452/* descriminant lists */
453enum dwarf_descrim_list
454  {
455    DW_DSC_label = 0,
456    DW_DSC_range = 1
457  };
458
459/* line number opcodes */
460enum dwarf_line_number_ops
461  {
462    DW_LNS_extended_op = 0,
463    DW_LNS_copy = 1,
464    DW_LNS_advance_pc = 2,
465    DW_LNS_advance_line = 3,
466    DW_LNS_set_file = 4,
467    DW_LNS_set_column = 5,
468    DW_LNS_negate_stmt = 6,
469    DW_LNS_set_basic_block = 7,
470    DW_LNS_const_add_pc = 8,
471    DW_LNS_fixed_advance_pc = 9
472  };
473
474/* line number extended opcodes */
475enum dwarf_line_number_x_ops
476  {
477    DW_LNE_end_sequence = 1,
478    DW_LNE_set_address = 2,
479    DW_LNE_define_file = 3
480  };
481
482/* call frame information */
483enum dwarf_call_frame_info
484  {
485    DW_CFA_advance_loc = 0x40,
486    DW_CFA_offset = 0x80,
487    DW_CFA_restore = 0xc0,
488    DW_CFA_nop = 0x00,
489    DW_CFA_set_loc = 0x01,
490    DW_CFA_advance_loc1 = 0x02,
491    DW_CFA_advance_loc2 = 0x03,
492    DW_CFA_advance_loc4 = 0x04,
493    DW_CFA_offset_extended = 0x05,
494    DW_CFA_restore_extended = 0x06,
495    DW_CFA_undefined = 0x07,
496    DW_CFA_same_value = 0x08,
497    DW_CFA_register = 0x09,
498    DW_CFA_remember_state = 0x0a,
499    DW_CFA_restore_state = 0x0b,
500    DW_CFA_def_cfa = 0x0c,
501    DW_CFA_def_cfa_register = 0x0d,
502    DW_CFA_def_cfa_offset = 0x0e,
503    /* SGI/MIPS specific */
504    DW_CFA_MIPS_advance_loc8 = 0x1d
505  };
506
507#define DW_CIE_ID	  0xffffffff
508#define DW_CIE_VERSION	  1
509
510#define DW_CFA_extended   0
511#define DW_CFA_low_user   0x1c
512#define DW_CFA_high_user  0x3f
513
514#define DW_CHILDREN_no		     0x00
515#define DW_CHILDREN_yes		     0x01
516
517#define DW_ADDR_none		0
518
519/* Source language names and codes.  */
520
521enum dwarf_source_language
522  {
523    DW_LANG_C89 = 0x0001,
524    DW_LANG_C = 0x0002,
525    DW_LANG_Ada83 = 0x0003,
526    DW_LANG_C_plus_plus = 0x0004,
527    DW_LANG_Cobol74 = 0x0005,
528    DW_LANG_Cobol85 = 0x0006,
529    DW_LANG_Fortran77 = 0x0007,
530    DW_LANG_Fortran90 = 0x0008,
531    DW_LANG_Pascal83 = 0x0009,
532    DW_LANG_Modula2 = 0x000a,
533    DW_LANG_Mips_Assembler = 0x8001
534  };
535
536
537#define DW_LANG_lo_user 0x8000	/* implementation-defined range start */
538#define DW_LANG_hi_user 0xffff	/* implementation-defined range start */
539
540/* Names and codes for macro information.  */
541
542enum dwarf_macinfo_record_type
543  {
544    DW_MACINFO_define = 1,
545    DW_MACINFO_undef = 2,
546    DW_MACINFO_start_file = 3,
547    DW_MACINFO_end_file = 4,
548    DW_MACINFO_vendor_ext = 255
549  };
550
551#endif /* _ELF_DWARF2_H */
552