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e53b6e56 | 1 | /* dwarf2out.h - Various declarations for functions found in dwarf2out.cc |
7adcbafe | 2 | Copyright (C) 1998-2022 Free Software Foundation, Inc. |
76ead72b | 3 | |
1322177d | 4 | This file is part of GCC. |
76ead72b | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
76ead72b | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
76ead72b RL |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
76ead72b | 19 | |
647a1567 RH |
20 | #ifndef GCC_DWARF2OUT_H |
21 | #define GCC_DWARF2OUT_H 1 | |
22 | ||
23 | #include "dwarf2.h" /* ??? Remove this once only used by dwarf2foo.c. */ | |
24 | ||
25 | typedef struct die_struct *dw_die_ref; | |
26 | typedef const struct die_struct *const_dw_die_ref; | |
27 | ||
84562394 OE |
28 | typedef struct dw_val_node *dw_val_ref; |
29 | typedef struct dw_cfi_node *dw_cfi_ref; | |
30 | typedef struct dw_loc_descr_node *dw_loc_descr_ref; | |
647a1567 | 31 | typedef struct dw_loc_list_struct *dw_loc_list_ref; |
986ccd21 | 32 | typedef struct dw_discr_list_node *dw_discr_list_ref; |
807e902e | 33 | typedef wide_int *wide_int_ptr; |
647a1567 RH |
34 | |
35 | ||
36 | /* Call frames are described using a sequence of Call Frame | |
37 | Information instructions. The register number, offset | |
38 | and address fields are provided as possible operands; | |
39 | their use is selected by the opcode field. */ | |
40 | ||
41 | enum dw_cfi_oprnd_type { | |
42 | dw_cfi_oprnd_unused, | |
43 | dw_cfi_oprnd_reg_num, | |
44 | dw_cfi_oprnd_offset, | |
45 | dw_cfi_oprnd_addr, | |
21810de4 RS |
46 | dw_cfi_oprnd_loc, |
47 | dw_cfi_oprnd_cfa_loc | |
647a1567 RH |
48 | }; |
49 | ||
84562394 | 50 | typedef union GTY(()) { |
647a1567 RH |
51 | unsigned int GTY ((tag ("dw_cfi_oprnd_reg_num"))) dw_cfi_reg_num; |
52 | HOST_WIDE_INT GTY ((tag ("dw_cfi_oprnd_offset"))) dw_cfi_offset; | |
53 | const char * GTY ((tag ("dw_cfi_oprnd_addr"))) dw_cfi_addr; | |
84562394 | 54 | struct dw_loc_descr_node * GTY ((tag ("dw_cfi_oprnd_loc"))) dw_cfi_loc; |
21810de4 RS |
55 | struct dw_cfa_location * GTY ((tag ("dw_cfi_oprnd_cfa_loc"))) |
56 | dw_cfi_cfa_loc; | |
84562394 | 57 | } dw_cfi_oprnd; |
647a1567 | 58 | |
84562394 | 59 | struct GTY(()) dw_cfi_node { |
647a1567 RH |
60 | enum dwarf_call_frame_info dw_cfi_opc; |
61 | dw_cfi_oprnd GTY ((desc ("dw_cfi_oprnd1_desc (%1.dw_cfi_opc)"))) | |
62 | dw_cfi_oprnd1; | |
63 | dw_cfi_oprnd GTY ((desc ("dw_cfi_oprnd2_desc (%1.dw_cfi_opc)"))) | |
64 | dw_cfi_oprnd2; | |
84562394 | 65 | }; |
647a1567 | 66 | |
647a1567 | 67 | |
9771b263 | 68 | typedef vec<dw_cfi_ref, va_gc> *cfi_vec; |
647a1567 | 69 | |
84562394 | 70 | typedef struct dw_fde_node *dw_fde_ref; |
647a1567 RH |
71 | |
72 | /* All call frame descriptions (FDE's) in the GCC generated DWARF | |
73 | refer to a single Common Information Entry (CIE), defined at | |
74 | the beginning of the .debug_frame section. This use of a single | |
75 | CIE obviates the need to keep track of multiple CIE's | |
76 | in the DWARF generation routines below. */ | |
77 | ||
84562394 | 78 | struct GTY(()) dw_fde_node { |
647a1567 RH |
79 | tree decl; |
80 | const char *dw_fde_begin; | |
81 | const char *dw_fde_current_label; | |
82 | const char *dw_fde_end; | |
83 | const char *dw_fde_vms_end_prologue; | |
84 | const char *dw_fde_vms_begin_epilogue; | |
85 | const char *dw_fde_second_begin; | |
86 | const char *dw_fde_second_end; | |
87 | cfi_vec dw_fde_cfi; | |
88 | int dw_fde_switch_cfi_index; /* Last CFI before switching sections. */ | |
89 | HOST_WIDE_INT stack_realignment; | |
a518b996 | 90 | |
647a1567 | 91 | unsigned funcdef_number; |
a518b996 RH |
92 | unsigned fde_index; |
93 | ||
647a1567 RH |
94 | /* Dynamic realign argument pointer register. */ |
95 | unsigned int drap_reg; | |
96 | /* Virtual dynamic realign argument pointer register. */ | |
97 | unsigned int vdrap_reg; | |
98 | /* These 3 flags are copied from rtl_data in function.h. */ | |
99 | unsigned all_throwers_are_sibcalls : 1; | |
100 | unsigned uses_eh_lsda : 1; | |
101 | unsigned nothrow : 1; | |
102 | /* Whether we did stack realign in this call frame. */ | |
103 | unsigned stack_realign : 1; | |
104 | /* Whether dynamic realign argument pointer register has been saved. */ | |
105 | unsigned drap_reg_saved: 1; | |
106 | /* True iff dw_fde_begin label is in text_section or cold_text_section. */ | |
107 | unsigned in_std_section : 1; | |
108 | /* True iff dw_fde_second_begin label is in text_section or | |
109 | cold_text_section. */ | |
110 | unsigned second_in_std_section : 1; | |
e53b6e56 | 111 | /* True if Rule 18 described in dwarf2cfi.cc is in action, i.e. for dynamic |
1cdfc98a JJ |
112 | stack realignment in between pushing of hard frame pointer to stack |
113 | and setting hard frame pointer to stack pointer. The register save for | |
114 | hard frame pointer register should be emitted only on the latter | |
115 | instruction. */ | |
116 | unsigned rule18 : 1; | |
e69ac020 BE |
117 | /* True if this function is to be ignored by debugger. */ |
118 | unsigned ignored_debug : 1; | |
84562394 | 119 | }; |
647a1567 RH |
120 | |
121 | ||
13b6c763 AS |
122 | /* This represents a register, in DWARF_FRAME_REGNUM space, for use in CFA |
123 | definitions and expressions. | |
124 | Most architectures only need a single register number, but some (amdgcn) | |
125 | have pointers that span multiple registers. DWARF permits arbitrary | |
126 | register sets but existing use-cases only require contiguous register | |
127 | sets, as represented here. */ | |
128 | struct GTY(()) cfa_reg { | |
129 | unsigned int reg; | |
130 | unsigned short span; | |
131 | unsigned short span_width; /* A.K.A. register mode size. */ | |
132 | ||
133 | cfa_reg& set_by_dwreg (unsigned int r) | |
134 | { | |
135 | reg = r; | |
136 | span = 1; | |
137 | span_width = 0; /* Unknown size (permitted when span == 1). */ | |
138 | return *this; | |
139 | } | |
140 | ||
141 | bool operator== (const cfa_reg &other) const | |
142 | { | |
143 | return (reg == other.reg && span == other.span | |
144 | && (span_width == other.span_width | |
145 | || (span == 1 | |
146 | && (span_width == 0 || other.span_width == 0)))); | |
147 | } | |
148 | ||
149 | bool operator!= (const cfa_reg &other) const | |
150 | { | |
151 | return !(*this == other); | |
152 | } | |
153 | }; | |
154 | ||
647a1567 RH |
155 | /* This is how we define the location of the CFA. We use to handle it |
156 | as REG + OFFSET all the time, but now it can be more complex. | |
157 | It can now be either REG + CFA_OFFSET or *(REG + BASE_OFFSET) + CFA_OFFSET. | |
158 | Instead of passing around REG and OFFSET, we pass a copy | |
159 | of this structure. */ | |
84562394 | 160 | struct GTY(()) dw_cfa_location { |
21810de4 RS |
161 | poly_int64_pod offset; |
162 | poly_int64_pod base_offset; | |
7263c6d7 | 163 | /* REG is in DWARF_FRAME_REGNUM space, *not* normal REGNO space. */ |
13b6c763 | 164 | struct cfa_reg reg; |
647a1567 RH |
165 | BOOL_BITFIELD indirect : 1; /* 1 if CFA is accessed via a dereference. */ |
166 | BOOL_BITFIELD in_use : 1; /* 1 if a saved cfa is stored here. */ | |
84562394 | 167 | }; |
647a1567 RH |
168 | |
169 | ||
170 | /* Each DIE may have a series of attribute/value pairs. Values | |
171 | can take on several forms. The forms that are used in this | |
172 | implementation are listed below. */ | |
173 | ||
174 | enum dw_val_class | |
175 | { | |
57e16c96 | 176 | dw_val_class_none, |
647a1567 RH |
177 | dw_val_class_addr, |
178 | dw_val_class_offset, | |
179 | dw_val_class_loc, | |
180 | dw_val_class_loc_list, | |
181 | dw_val_class_range_list, | |
182 | dw_val_class_const, | |
183 | dw_val_class_unsigned_const, | |
184 | dw_val_class_const_double, | |
807e902e | 185 | dw_val_class_wide_int, |
647a1567 RH |
186 | dw_val_class_vec, |
187 | dw_val_class_flag, | |
188 | dw_val_class_die_ref, | |
189 | dw_val_class_fde_ref, | |
190 | dw_val_class_lbl_id, | |
191 | dw_val_class_lineptr, | |
192 | dw_val_class_str, | |
193 | dw_val_class_macptr, | |
2a3d56bf | 194 | dw_val_class_loclistsptr, |
647a1567 RH |
195 | dw_val_class_file, |
196 | dw_val_class_data8, | |
197 | dw_val_class_decl_ref, | |
413de8e5 | 198 | dw_val_class_vms_delta, |
986ccd21 PMR |
199 | dw_val_class_high_pc, |
200 | dw_val_class_discr_value, | |
f04c1e0a JJ |
201 | dw_val_class_discr_list, |
202 | dw_val_class_const_implicit, | |
203 | dw_val_class_unsigned_const_implicit, | |
bd2b9f1e | 204 | dw_val_class_file_implicit, |
7b602c4d AO |
205 | dw_val_class_view_list, |
206 | dw_val_class_symview | |
647a1567 RH |
207 | }; |
208 | ||
209 | /* Describe a floating point constant value, or a vector constant value. */ | |
210 | ||
84562394 | 211 | struct GTY(()) dw_vec_const { |
edca997e | 212 | void * GTY((atomic)) array; |
647a1567 RH |
213 | unsigned length; |
214 | unsigned elt_size; | |
84562394 | 215 | }; |
647a1567 | 216 | |
986ccd21 PMR |
217 | /* Describe a single value that a discriminant can match. |
218 | ||
219 | Discriminants (in the "record variant part" meaning) are scalars. | |
220 | dw_discr_list_ref and dw_discr_value are a mean to describe a set of | |
221 | discriminant values that are matched by a particular variant. | |
222 | ||
223 | Discriminants can be signed or unsigned scalars, and can be discriminants | |
224 | values. Both have to be consistent, though. */ | |
225 | ||
226 | struct GTY(()) dw_discr_value { | |
227 | int pos; /* Whether the discriminant value is positive (unsigned). */ | |
228 | union | |
229 | { | |
230 | HOST_WIDE_INT GTY ((tag ("0"))) sval; | |
231 | unsigned HOST_WIDE_INT GTY ((tag ("1"))) uval; | |
232 | } | |
233 | GTY ((desc ("%1.pos"))) v; | |
234 | }; | |
235 | ||
50686850 | 236 | struct addr_table_entry; |
99ea153e | 237 | |
647a1567 RH |
238 | /* The dw_val_node describes an attribute's value, as it is |
239 | represented internally. */ | |
240 | ||
84562394 | 241 | struct GTY(()) dw_val_node { |
647a1567 | 242 | enum dw_val_class val_class; |
50686850 | 243 | struct addr_table_entry * GTY(()) val_entry; |
647a1567 RH |
244 | union dw_val_struct_union |
245 | { | |
246 | rtx GTY ((tag ("dw_val_class_addr"))) val_addr; | |
247 | unsigned HOST_WIDE_INT GTY ((tag ("dw_val_class_offset"))) val_offset; | |
248 | dw_loc_list_ref GTY ((tag ("dw_val_class_loc_list"))) val_loc_list; | |
bd2b9f1e | 249 | dw_die_ref GTY ((tag ("dw_val_class_view_list"))) val_view_list; |
647a1567 RH |
250 | dw_loc_descr_ref GTY ((tag ("dw_val_class_loc"))) val_loc; |
251 | HOST_WIDE_INT GTY ((default)) val_int; | |
f04c1e0a JJ |
252 | unsigned HOST_WIDE_INT |
253 | GTY ((tag ("dw_val_class_unsigned_const"))) val_unsigned; | |
647a1567 | 254 | double_int GTY ((tag ("dw_val_class_const_double"))) val_double; |
807e902e | 255 | wide_int_ptr GTY ((tag ("dw_val_class_wide_int"))) val_wide; |
647a1567 RH |
256 | dw_vec_const GTY ((tag ("dw_val_class_vec"))) val_vec; |
257 | struct dw_val_die_union | |
258 | { | |
259 | dw_die_ref die; | |
260 | int external; | |
261 | } GTY ((tag ("dw_val_class_die_ref"))) val_die_ref; | |
262 | unsigned GTY ((tag ("dw_val_class_fde_ref"))) val_fde_index; | |
263 | struct indirect_string_node * GTY ((tag ("dw_val_class_str"))) val_str; | |
264 | char * GTY ((tag ("dw_val_class_lbl_id"))) val_lbl_id; | |
265 | unsigned char GTY ((tag ("dw_val_class_flag"))) val_flag; | |
266 | struct dwarf_file_data * GTY ((tag ("dw_val_class_file"))) val_file; | |
f04c1e0a JJ |
267 | struct dwarf_file_data * |
268 | GTY ((tag ("dw_val_class_file_implicit"))) val_file_implicit; | |
647a1567 RH |
269 | unsigned char GTY ((tag ("dw_val_class_data8"))) val_data8[8]; |
270 | tree GTY ((tag ("dw_val_class_decl_ref"))) val_decl_ref; | |
271 | struct dw_val_vms_delta_union | |
272 | { | |
273 | char * lbl1; | |
274 | char * lbl2; | |
275 | } GTY ((tag ("dw_val_class_vms_delta"))) val_vms_delta; | |
986ccd21 PMR |
276 | dw_discr_value GTY ((tag ("dw_val_class_discr_value"))) val_discr_value; |
277 | dw_discr_list_ref GTY ((tag ("dw_val_class_discr_list"))) val_discr_list; | |
7b602c4d | 278 | char * GTY ((tag ("dw_val_class_symview"))) val_symbolic_view; |
647a1567 RH |
279 | } |
280 | GTY ((desc ("%1.val_class"))) v; | |
84562394 | 281 | }; |
647a1567 RH |
282 | |
283 | /* Locations in memory are described using a sequence of stack machine | |
284 | operations. */ | |
285 | ||
bd849fe6 | 286 | struct GTY((chain_next ("%h.dw_loc_next"))) dw_loc_descr_node { |
647a1567 RH |
287 | dw_loc_descr_ref dw_loc_next; |
288 | ENUM_BITFIELD (dwarf_location_atom) dw_loc_opc : 8; | |
289 | /* Used to distinguish DW_OP_addr with a direct symbol relocation | |
290 | from DW_OP_addr with a dtp-relative symbol relocation. */ | |
291 | unsigned int dtprel : 1; | |
5cea3ad6 JJ |
292 | /* For DW_OP_pick, DW_OP_dup and DW_OP_over operations: true iff. |
293 | it targets a DWARF prodecure argument. In this case, it needs to be | |
294 | relocated according to the current frame offset. */ | |
986ccd21 | 295 | unsigned int frame_offset_rel : 1; |
647a1567 RH |
296 | int dw_loc_addr; |
297 | dw_val_node dw_loc_oprnd1; | |
298 | dw_val_node dw_loc_oprnd2; | |
84562394 | 299 | }; |
647a1567 | 300 | |
986ccd21 PMR |
301 | /* A variant (inside a record variant part) is selected when the corresponding |
302 | discriminant matches its set of values (see the comment for dw_discr_value). | |
303 | The following datastructure holds such matching information. */ | |
304 | ||
305 | struct GTY(()) dw_discr_list_node { | |
306 | dw_discr_list_ref dw_discr_next; | |
307 | ||
308 | dw_discr_value dw_discr_lower_bound; | |
309 | dw_discr_value dw_discr_upper_bound; | |
310 | /* This node represents only the value in dw_discr_lower_bound when it's | |
311 | zero. It represents the range between the two fields (bounds included) | |
312 | otherwise. */ | |
313 | int dw_discr_range; | |
314 | }; | |
647a1567 | 315 | |
e53b6e56 | 316 | /* Interface from dwarf2out.cc to dwarf2cfi.cc. */ |
84562394 | 317 | extern struct dw_loc_descr_node *build_cfa_loc |
74c74aa0 | 318 | (dw_cfa_location *, poly_int64); |
84562394 | 319 | extern struct dw_loc_descr_node *build_cfa_aligned_loc |
74c74aa0 | 320 | (dw_cfa_location *, poly_int64, HOST_WIDE_INT); |
13b6c763 | 321 | extern struct dw_loc_descr_node *build_span_loc (struct cfa_reg); |
84562394 | 322 | extern struct dw_loc_descr_node *mem_loc_descriptor |
ef4bddc2 | 323 | (rtx, machine_mode mode, machine_mode mem_mode, |
647a1567 | 324 | enum var_init_status); |
57e16c96 | 325 | extern bool loc_descr_equal_p (dw_loc_descr_ref, dw_loc_descr_ref); |
a518b996 | 326 | extern dw_fde_ref dwarf2out_alloc_current_fde (void); |
647a1567 | 327 | |
948d330e RH |
328 | extern unsigned long size_of_locs (dw_loc_descr_ref); |
329 | extern void output_loc_sequence (dw_loc_descr_ref, int); | |
330 | extern void output_loc_sequence_raw (dw_loc_descr_ref); | |
331 | ||
e53b6e56 | 332 | /* Interface from dwarf2cfi.cc to dwarf2out.cc. */ |
647a1567 RH |
333 | extern void lookup_cfa_1 (dw_cfi_ref cfi, dw_cfa_location *loc, |
334 | dw_cfa_location *remember); | |
335 | extern bool cfa_equal_p (const dw_cfa_location *, const dw_cfa_location *); | |
336 | ||
948d330e | 337 | extern void output_cfi (dw_cfi_ref, dw_fde_ref, int); |
948d330e | 338 | |
647a1567 RH |
339 | extern GTY(()) cfi_vec cie_cfi_vec; |
340 | ||
341 | /* Interface from dwarf2*.c to the rest of the compiler. */ | |
342 | extern enum dw_cfi_oprnd_type dw_cfi_oprnd1_desc | |
343 | (enum dwarf_call_frame_info cfi); | |
344 | extern enum dw_cfi_oprnd_type dw_cfi_oprnd2_desc | |
345 | (enum dwarf_call_frame_info cfi); | |
346 | ||
84562394 | 347 | extern void output_cfi_directive (FILE *f, struct dw_cfi_node *cfi); |
2867fa7c | 348 | |
bc5612ed | 349 | extern void dwarf2out_emit_cfi (dw_cfi_ref cfi); |
83d2b3b9 | 350 | |
7080f735 | 351 | extern void debug_dwarf (void); |
79a2acc8 | 352 | struct die_struct; |
7080f735 | 353 | extern void debug_dwarf_die (struct die_struct *); |
f08649c0 | 354 | extern void debug_dwarf_loc_descr (dw_loc_descr_ref); |
7b3b6ae4 LC |
355 | extern void debug (die_struct &ref); |
356 | extern void debug (die_struct *ptr); | |
7080f735 | 357 | extern void dwarf2out_set_demangle_name_func (const char *(*) (const char *)); |
8e7745dc DR |
358 | #ifdef VMS_DEBUGGING_INFO |
359 | extern void dwarf2out_vms_debug_main_pointer (void); | |
360 | #endif | |
fad0afd7 | 361 | |
616743a8 PMR |
362 | enum array_descr_ordering |
363 | { | |
364 | array_descr_ordering_default, | |
365 | array_descr_ordering_row_major, | |
366 | array_descr_ordering_column_major | |
367 | }; | |
368 | ||
98088266 PMR |
369 | #define DWARF2OUT_ARRAY_DESCR_INFO_MAX_DIMEN 16 |
370 | ||
fad0afd7 JJ |
371 | struct array_descr_info |
372 | { | |
373 | int ndimensions; | |
616743a8 | 374 | enum array_descr_ordering ordering; |
fad0afd7 JJ |
375 | tree element_type; |
376 | tree base_decl; | |
377 | tree data_location; | |
378 | tree allocated; | |
379 | tree associated; | |
eb59e428 | 380 | tree stride; |
5cea3ad6 | 381 | tree rank; |
eb59e428 | 382 | bool stride_in_bits; |
fad0afd7 JJ |
383 | struct array_descr_dimen |
384 | { | |
616743a8 PMR |
385 | /* GCC uses sizetype for array indices, so lower_bound and upper_bound |
386 | will likely be "sizetype" values. However, bounds may have another | |
387 | type in the original source code. */ | |
388 | tree bounds_type; | |
fad0afd7 JJ |
389 | tree lower_bound; |
390 | tree upper_bound; | |
eb59e428 PMR |
391 | |
392 | /* Only Fortran uses more than one dimension for array types. For other | |
393 | languages, the stride can be rather specified for the whole array. */ | |
fad0afd7 | 394 | tree stride; |
98088266 | 395 | } dimen[DWARF2OUT_ARRAY_DESCR_INFO_MAX_DIMEN]; |
fad0afd7 | 396 | }; |
647a1567 | 397 | |
2971780e PMR |
398 | enum fixed_point_scale_factor |
399 | { | |
400 | fixed_point_scale_factor_binary, | |
401 | fixed_point_scale_factor_decimal, | |
402 | fixed_point_scale_factor_arbitrary | |
403 | }; | |
404 | ||
405 | struct fixed_point_type_info | |
406 | { | |
43a0debd EB |
407 | /* The scale factor is the value one has to multiply the actual data with |
408 | to get the fixed point value. We support three ways to encode it. */ | |
2971780e PMR |
409 | enum fixed_point_scale_factor scale_factor_kind; |
410 | union | |
411 | { | |
43a0debd | 412 | /* For a binary scale factor, the scale factor is 2 ** binary. */ |
2971780e | 413 | int binary; |
43a0debd | 414 | /* For a decimal scale factor, the scale factor is 10 ** decimal. */ |
2971780e | 415 | int decimal; |
43a0debd | 416 | /* For an arbitrary scale factor, the scale factor is the ratio |
2971780e | 417 | numerator / denominator. */ |
43a0debd | 418 | struct { tree numerator; tree denominator; } arbitrary; |
2971780e PMR |
419 | } scale_factor; |
420 | }; | |
421 | ||
d5148d4f | 422 | void dwarf2out_cc_finalize (void); |
3edf64aa | 423 | |
5783a0cc IB |
424 | /* Some DWARF internals are exposed for the needs of DWARF-based debug |
425 | formats. */ | |
426 | ||
427 | /* Each DIE attribute has a field specifying the attribute kind, | |
428 | a link to the next attribute in the chain, and an attribute value. | |
429 | Attributes are typically linked below the DIE they modify. */ | |
430 | ||
431 | typedef struct GTY(()) dw_attr_struct { | |
432 | enum dwarf_attribute dw_attr; | |
433 | dw_val_node dw_attr_val; | |
434 | } | |
435 | dw_attr_node; | |
436 | ||
437 | extern dw_attr_node *get_AT (dw_die_ref, enum dwarf_attribute); | |
438 | extern HOST_WIDE_INT AT_int (dw_attr_node *); | |
439 | extern unsigned HOST_WIDE_INT AT_unsigned (dw_attr_node *a); | |
440 | extern dw_loc_descr_ref AT_loc (dw_attr_node *); | |
441 | extern dw_die_ref get_AT_ref (dw_die_ref, enum dwarf_attribute); | |
442 | extern const char *get_AT_string (dw_die_ref, enum dwarf_attribute); | |
443 | extern enum dw_val_class AT_class (dw_attr_node *); | |
444 | extern unsigned HOST_WIDE_INT AT_unsigned (dw_attr_node *); | |
445 | extern unsigned get_AT_unsigned (dw_die_ref, enum dwarf_attribute); | |
446 | extern int get_AT_flag (dw_die_ref, enum dwarf_attribute); | |
447 | ||
448 | extern void add_name_attribute (dw_die_ref, const char *); | |
449 | ||
450 | extern dw_die_ref new_die_raw (enum dwarf_tag); | |
451 | extern dw_die_ref base_type_die (tree, bool); | |
452 | ||
453 | extern dw_die_ref lookup_decl_die (tree); | |
81eced21 | 454 | extern dw_die_ref lookup_type_die (tree); |
5783a0cc IB |
455 | |
456 | extern dw_die_ref dw_get_die_child (dw_die_ref); | |
457 | extern dw_die_ref dw_get_die_sib (dw_die_ref); | |
458 | extern enum dwarf_tag dw_get_die_tag (dw_die_ref); | |
459 | ||
460 | /* Data about a single source file. */ | |
461 | struct GTY((for_user)) dwarf_file_data { | |
7cc2df08 | 462 | const char * key; |
5783a0cc IB |
463 | const char * filename; |
464 | int emitted_number; | |
465 | }; | |
466 | ||
467 | extern struct dwarf_file_data *get_AT_file (dw_die_ref, | |
468 | enum dwarf_attribute); | |
469 | ||
647a1567 | 470 | #endif /* GCC_DWARF2OUT_H */ |