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76ead72b | 1 | /* dwarf2out.h - Various declarations for functions found in dwarf2out.c |
99dee823 | 2 | Copyright (C) 1998-2021 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; | |
1cdfc98a JJ |
111 | /* True if Rule 18 described in dwarf2cfi.c is in action, i.e. for dynamic |
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 | ||
122 | /* This is how we define the location of the CFA. We use to handle it | |
123 | as REG + OFFSET all the time, but now it can be more complex. | |
124 | It can now be either REG + CFA_OFFSET or *(REG + BASE_OFFSET) + CFA_OFFSET. | |
125 | Instead of passing around REG and OFFSET, we pass a copy | |
126 | of this structure. */ | |
84562394 | 127 | struct GTY(()) dw_cfa_location { |
21810de4 RS |
128 | poly_int64_pod offset; |
129 | poly_int64_pod base_offset; | |
7263c6d7 | 130 | /* REG is in DWARF_FRAME_REGNUM space, *not* normal REGNO space. */ |
647a1567 RH |
131 | unsigned int reg; |
132 | BOOL_BITFIELD indirect : 1; /* 1 if CFA is accessed via a dereference. */ | |
133 | BOOL_BITFIELD in_use : 1; /* 1 if a saved cfa is stored here. */ | |
84562394 | 134 | }; |
647a1567 RH |
135 | |
136 | ||
137 | /* Each DIE may have a series of attribute/value pairs. Values | |
138 | can take on several forms. The forms that are used in this | |
139 | implementation are listed below. */ | |
140 | ||
141 | enum dw_val_class | |
142 | { | |
57e16c96 | 143 | dw_val_class_none, |
647a1567 RH |
144 | dw_val_class_addr, |
145 | dw_val_class_offset, | |
146 | dw_val_class_loc, | |
147 | dw_val_class_loc_list, | |
148 | dw_val_class_range_list, | |
149 | dw_val_class_const, | |
150 | dw_val_class_unsigned_const, | |
151 | dw_val_class_const_double, | |
807e902e | 152 | dw_val_class_wide_int, |
647a1567 RH |
153 | dw_val_class_vec, |
154 | dw_val_class_flag, | |
155 | dw_val_class_die_ref, | |
156 | dw_val_class_fde_ref, | |
157 | dw_val_class_lbl_id, | |
158 | dw_val_class_lineptr, | |
159 | dw_val_class_str, | |
160 | dw_val_class_macptr, | |
2a3d56bf | 161 | dw_val_class_loclistsptr, |
647a1567 RH |
162 | dw_val_class_file, |
163 | dw_val_class_data8, | |
164 | dw_val_class_decl_ref, | |
413de8e5 | 165 | dw_val_class_vms_delta, |
986ccd21 PMR |
166 | dw_val_class_high_pc, |
167 | dw_val_class_discr_value, | |
f04c1e0a JJ |
168 | dw_val_class_discr_list, |
169 | dw_val_class_const_implicit, | |
170 | dw_val_class_unsigned_const_implicit, | |
bd2b9f1e | 171 | dw_val_class_file_implicit, |
7b602c4d AO |
172 | dw_val_class_view_list, |
173 | dw_val_class_symview | |
647a1567 RH |
174 | }; |
175 | ||
176 | /* Describe a floating point constant value, or a vector constant value. */ | |
177 | ||
84562394 | 178 | struct GTY(()) dw_vec_const { |
edca997e | 179 | void * GTY((atomic)) array; |
647a1567 RH |
180 | unsigned length; |
181 | unsigned elt_size; | |
84562394 | 182 | }; |
647a1567 | 183 | |
986ccd21 PMR |
184 | /* Describe a single value that a discriminant can match. |
185 | ||
186 | Discriminants (in the "record variant part" meaning) are scalars. | |
187 | dw_discr_list_ref and dw_discr_value are a mean to describe a set of | |
188 | discriminant values that are matched by a particular variant. | |
189 | ||
190 | Discriminants can be signed or unsigned scalars, and can be discriminants | |
191 | values. Both have to be consistent, though. */ | |
192 | ||
193 | struct GTY(()) dw_discr_value { | |
194 | int pos; /* Whether the discriminant value is positive (unsigned). */ | |
195 | union | |
196 | { | |
197 | HOST_WIDE_INT GTY ((tag ("0"))) sval; | |
198 | unsigned HOST_WIDE_INT GTY ((tag ("1"))) uval; | |
199 | } | |
200 | GTY ((desc ("%1.pos"))) v; | |
201 | }; | |
202 | ||
50686850 | 203 | struct addr_table_entry; |
99ea153e | 204 | |
647a1567 RH |
205 | /* The dw_val_node describes an attribute's value, as it is |
206 | represented internally. */ | |
207 | ||
84562394 | 208 | struct GTY(()) dw_val_node { |
647a1567 | 209 | enum dw_val_class val_class; |
50686850 | 210 | struct addr_table_entry * GTY(()) val_entry; |
647a1567 RH |
211 | union dw_val_struct_union |
212 | { | |
213 | rtx GTY ((tag ("dw_val_class_addr"))) val_addr; | |
214 | unsigned HOST_WIDE_INT GTY ((tag ("dw_val_class_offset"))) val_offset; | |
215 | dw_loc_list_ref GTY ((tag ("dw_val_class_loc_list"))) val_loc_list; | |
bd2b9f1e | 216 | dw_die_ref GTY ((tag ("dw_val_class_view_list"))) val_view_list; |
647a1567 RH |
217 | dw_loc_descr_ref GTY ((tag ("dw_val_class_loc"))) val_loc; |
218 | HOST_WIDE_INT GTY ((default)) val_int; | |
f04c1e0a JJ |
219 | unsigned HOST_WIDE_INT |
220 | GTY ((tag ("dw_val_class_unsigned_const"))) val_unsigned; | |
647a1567 | 221 | double_int GTY ((tag ("dw_val_class_const_double"))) val_double; |
807e902e | 222 | wide_int_ptr GTY ((tag ("dw_val_class_wide_int"))) val_wide; |
647a1567 RH |
223 | dw_vec_const GTY ((tag ("dw_val_class_vec"))) val_vec; |
224 | struct dw_val_die_union | |
225 | { | |
226 | dw_die_ref die; | |
227 | int external; | |
228 | } GTY ((tag ("dw_val_class_die_ref"))) val_die_ref; | |
229 | unsigned GTY ((tag ("dw_val_class_fde_ref"))) val_fde_index; | |
230 | struct indirect_string_node * GTY ((tag ("dw_val_class_str"))) val_str; | |
231 | char * GTY ((tag ("dw_val_class_lbl_id"))) val_lbl_id; | |
232 | unsigned char GTY ((tag ("dw_val_class_flag"))) val_flag; | |
233 | struct dwarf_file_data * GTY ((tag ("dw_val_class_file"))) val_file; | |
f04c1e0a JJ |
234 | struct dwarf_file_data * |
235 | GTY ((tag ("dw_val_class_file_implicit"))) val_file_implicit; | |
647a1567 RH |
236 | unsigned char GTY ((tag ("dw_val_class_data8"))) val_data8[8]; |
237 | tree GTY ((tag ("dw_val_class_decl_ref"))) val_decl_ref; | |
238 | struct dw_val_vms_delta_union | |
239 | { | |
240 | char * lbl1; | |
241 | char * lbl2; | |
242 | } GTY ((tag ("dw_val_class_vms_delta"))) val_vms_delta; | |
986ccd21 PMR |
243 | dw_discr_value GTY ((tag ("dw_val_class_discr_value"))) val_discr_value; |
244 | dw_discr_list_ref GTY ((tag ("dw_val_class_discr_list"))) val_discr_list; | |
7b602c4d | 245 | char * GTY ((tag ("dw_val_class_symview"))) val_symbolic_view; |
647a1567 RH |
246 | } |
247 | GTY ((desc ("%1.val_class"))) v; | |
84562394 | 248 | }; |
647a1567 RH |
249 | |
250 | /* Locations in memory are described using a sequence of stack machine | |
251 | operations. */ | |
252 | ||
bd849fe6 | 253 | struct GTY((chain_next ("%h.dw_loc_next"))) dw_loc_descr_node { |
647a1567 RH |
254 | dw_loc_descr_ref dw_loc_next; |
255 | ENUM_BITFIELD (dwarf_location_atom) dw_loc_opc : 8; | |
256 | /* Used to distinguish DW_OP_addr with a direct symbol relocation | |
257 | from DW_OP_addr with a dtp-relative symbol relocation. */ | |
258 | unsigned int dtprel : 1; | |
5cea3ad6 JJ |
259 | /* For DW_OP_pick, DW_OP_dup and DW_OP_over operations: true iff. |
260 | it targets a DWARF prodecure argument. In this case, it needs to be | |
261 | relocated according to the current frame offset. */ | |
986ccd21 | 262 | unsigned int frame_offset_rel : 1; |
647a1567 RH |
263 | int dw_loc_addr; |
264 | dw_val_node dw_loc_oprnd1; | |
265 | dw_val_node dw_loc_oprnd2; | |
84562394 | 266 | }; |
647a1567 | 267 | |
986ccd21 PMR |
268 | /* A variant (inside a record variant part) is selected when the corresponding |
269 | discriminant matches its set of values (see the comment for dw_discr_value). | |
270 | The following datastructure holds such matching information. */ | |
271 | ||
272 | struct GTY(()) dw_discr_list_node { | |
273 | dw_discr_list_ref dw_discr_next; | |
274 | ||
275 | dw_discr_value dw_discr_lower_bound; | |
276 | dw_discr_value dw_discr_upper_bound; | |
277 | /* This node represents only the value in dw_discr_lower_bound when it's | |
278 | zero. It represents the range between the two fields (bounds included) | |
279 | otherwise. */ | |
280 | int dw_discr_range; | |
281 | }; | |
647a1567 RH |
282 | |
283 | /* Interface from dwarf2out.c to dwarf2cfi.c. */ | |
84562394 | 284 | extern struct dw_loc_descr_node *build_cfa_loc |
74c74aa0 | 285 | (dw_cfa_location *, poly_int64); |
84562394 | 286 | extern struct dw_loc_descr_node *build_cfa_aligned_loc |
74c74aa0 | 287 | (dw_cfa_location *, poly_int64, HOST_WIDE_INT); |
84562394 | 288 | extern struct dw_loc_descr_node *mem_loc_descriptor |
ef4bddc2 | 289 | (rtx, machine_mode mode, machine_mode mem_mode, |
647a1567 | 290 | enum var_init_status); |
57e16c96 | 291 | extern bool loc_descr_equal_p (dw_loc_descr_ref, dw_loc_descr_ref); |
a518b996 | 292 | extern dw_fde_ref dwarf2out_alloc_current_fde (void); |
647a1567 | 293 | |
948d330e RH |
294 | extern unsigned long size_of_locs (dw_loc_descr_ref); |
295 | extern void output_loc_sequence (dw_loc_descr_ref, int); | |
296 | extern void output_loc_sequence_raw (dw_loc_descr_ref); | |
297 | ||
647a1567 | 298 | /* Interface from dwarf2cfi.c to dwarf2out.c. */ |
647a1567 RH |
299 | extern void lookup_cfa_1 (dw_cfi_ref cfi, dw_cfa_location *loc, |
300 | dw_cfa_location *remember); | |
301 | extern bool cfa_equal_p (const dw_cfa_location *, const dw_cfa_location *); | |
302 | ||
948d330e | 303 | extern void output_cfi (dw_cfi_ref, dw_fde_ref, int); |
948d330e | 304 | |
647a1567 RH |
305 | extern GTY(()) cfi_vec cie_cfi_vec; |
306 | ||
307 | /* Interface from dwarf2*.c to the rest of the compiler. */ | |
308 | extern enum dw_cfi_oprnd_type dw_cfi_oprnd1_desc | |
309 | (enum dwarf_call_frame_info cfi); | |
310 | extern enum dw_cfi_oprnd_type dw_cfi_oprnd2_desc | |
311 | (enum dwarf_call_frame_info cfi); | |
312 | ||
84562394 | 313 | extern void output_cfi_directive (FILE *f, struct dw_cfi_node *cfi); |
2867fa7c | 314 | |
bc5612ed | 315 | extern void dwarf2out_emit_cfi (dw_cfi_ref cfi); |
83d2b3b9 | 316 | |
7080f735 | 317 | extern void debug_dwarf (void); |
79a2acc8 | 318 | struct die_struct; |
7080f735 | 319 | extern void debug_dwarf_die (struct die_struct *); |
f08649c0 | 320 | extern void debug_dwarf_loc_descr (dw_loc_descr_ref); |
7b3b6ae4 LC |
321 | extern void debug (die_struct &ref); |
322 | extern void debug (die_struct *ptr); | |
7080f735 | 323 | extern void dwarf2out_set_demangle_name_func (const char *(*) (const char *)); |
8e7745dc DR |
324 | #ifdef VMS_DEBUGGING_INFO |
325 | extern void dwarf2out_vms_debug_main_pointer (void); | |
326 | #endif | |
fad0afd7 | 327 | |
616743a8 PMR |
328 | enum array_descr_ordering |
329 | { | |
330 | array_descr_ordering_default, | |
331 | array_descr_ordering_row_major, | |
332 | array_descr_ordering_column_major | |
333 | }; | |
334 | ||
98088266 PMR |
335 | #define DWARF2OUT_ARRAY_DESCR_INFO_MAX_DIMEN 16 |
336 | ||
fad0afd7 JJ |
337 | struct array_descr_info |
338 | { | |
339 | int ndimensions; | |
616743a8 | 340 | enum array_descr_ordering ordering; |
fad0afd7 JJ |
341 | tree element_type; |
342 | tree base_decl; | |
343 | tree data_location; | |
344 | tree allocated; | |
345 | tree associated; | |
eb59e428 | 346 | tree stride; |
5cea3ad6 | 347 | tree rank; |
eb59e428 | 348 | bool stride_in_bits; |
fad0afd7 JJ |
349 | struct array_descr_dimen |
350 | { | |
616743a8 PMR |
351 | /* GCC uses sizetype for array indices, so lower_bound and upper_bound |
352 | will likely be "sizetype" values. However, bounds may have another | |
353 | type in the original source code. */ | |
354 | tree bounds_type; | |
fad0afd7 JJ |
355 | tree lower_bound; |
356 | tree upper_bound; | |
eb59e428 PMR |
357 | |
358 | /* Only Fortran uses more than one dimension for array types. For other | |
359 | languages, the stride can be rather specified for the whole array. */ | |
fad0afd7 | 360 | tree stride; |
98088266 | 361 | } dimen[DWARF2OUT_ARRAY_DESCR_INFO_MAX_DIMEN]; |
fad0afd7 | 362 | }; |
647a1567 | 363 | |
2971780e PMR |
364 | enum fixed_point_scale_factor |
365 | { | |
366 | fixed_point_scale_factor_binary, | |
367 | fixed_point_scale_factor_decimal, | |
368 | fixed_point_scale_factor_arbitrary | |
369 | }; | |
370 | ||
371 | struct fixed_point_type_info | |
372 | { | |
43a0debd EB |
373 | /* The scale factor is the value one has to multiply the actual data with |
374 | to get the fixed point value. We support three ways to encode it. */ | |
2971780e PMR |
375 | enum fixed_point_scale_factor scale_factor_kind; |
376 | union | |
377 | { | |
43a0debd | 378 | /* For a binary scale factor, the scale factor is 2 ** binary. */ |
2971780e | 379 | int binary; |
43a0debd | 380 | /* For a decimal scale factor, the scale factor is 10 ** decimal. */ |
2971780e | 381 | int decimal; |
43a0debd | 382 | /* For an arbitrary scale factor, the scale factor is the ratio |
2971780e | 383 | numerator / denominator. */ |
43a0debd | 384 | struct { tree numerator; tree denominator; } arbitrary; |
2971780e PMR |
385 | } scale_factor; |
386 | }; | |
387 | ||
3edf64aa DM |
388 | void dwarf2out_c_finalize (void); |
389 | ||
5783a0cc IB |
390 | /* Some DWARF internals are exposed for the needs of DWARF-based debug |
391 | formats. */ | |
392 | ||
393 | /* Each DIE attribute has a field specifying the attribute kind, | |
394 | a link to the next attribute in the chain, and an attribute value. | |
395 | Attributes are typically linked below the DIE they modify. */ | |
396 | ||
397 | typedef struct GTY(()) dw_attr_struct { | |
398 | enum dwarf_attribute dw_attr; | |
399 | dw_val_node dw_attr_val; | |
400 | } | |
401 | dw_attr_node; | |
402 | ||
403 | extern dw_attr_node *get_AT (dw_die_ref, enum dwarf_attribute); | |
404 | extern HOST_WIDE_INT AT_int (dw_attr_node *); | |
405 | extern unsigned HOST_WIDE_INT AT_unsigned (dw_attr_node *a); | |
406 | extern dw_loc_descr_ref AT_loc (dw_attr_node *); | |
407 | extern dw_die_ref get_AT_ref (dw_die_ref, enum dwarf_attribute); | |
408 | extern const char *get_AT_string (dw_die_ref, enum dwarf_attribute); | |
409 | extern enum dw_val_class AT_class (dw_attr_node *); | |
410 | extern unsigned HOST_WIDE_INT AT_unsigned (dw_attr_node *); | |
411 | extern unsigned get_AT_unsigned (dw_die_ref, enum dwarf_attribute); | |
412 | extern int get_AT_flag (dw_die_ref, enum dwarf_attribute); | |
413 | ||
414 | extern void add_name_attribute (dw_die_ref, const char *); | |
415 | ||
416 | extern dw_die_ref new_die_raw (enum dwarf_tag); | |
417 | extern dw_die_ref base_type_die (tree, bool); | |
418 | ||
419 | extern dw_die_ref lookup_decl_die (tree); | |
81eced21 | 420 | extern dw_die_ref lookup_type_die (tree); |
5783a0cc IB |
421 | |
422 | extern dw_die_ref dw_get_die_child (dw_die_ref); | |
423 | extern dw_die_ref dw_get_die_sib (dw_die_ref); | |
424 | extern enum dwarf_tag dw_get_die_tag (dw_die_ref); | |
425 | ||
426 | /* Data about a single source file. */ | |
427 | struct GTY((for_user)) dwarf_file_data { | |
7cc2df08 | 428 | const char * key; |
5783a0cc IB |
429 | const char * filename; |
430 | int emitted_number; | |
431 | }; | |
432 | ||
433 | extern struct dwarf_file_data *get_AT_file (dw_die_ref, | |
434 | enum dwarf_attribute); | |
435 | ||
647a1567 | 436 | #endif /* GCC_DWARF2OUT_H */ |