1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
2 /* vi:set ro: */
3
4 /* Dynamic architecture support for GDB, the GNU debugger.
5
6 Copyright (C) 1998-2021 Free Software Foundation, Inc.
7
8 This file is part of GDB.
9
10 This program 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 3 of the License, or
13 (at your option) any later version.
14
15 This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
22
23 /* This file was created with the aid of ``gdbarch.sh''. */
24
25 #ifndef GDBARCH_H
26 #define GDBARCH_H
27
28 #include <vector>
29 #include "frame.h"
30 #include "dis-asm.h"
31 #include "gdb_obstack.h"
32 #include "infrun.h"
33 #include "osabi.h"
34 #include "displaced-stepping.h"
35
36 struct floatformat;
37 struct ui_file;
38 struct value;
39 struct objfile;
40 struct obj_section;
41 struct minimal_symbol;
42 struct regcache;
43 struct reggroup;
44 struct regset;
45 struct disassemble_info;
46 struct target_ops;
47 struct obstack;
48 struct bp_target_info;
49 struct target_desc;
50 struct symbol;
51 struct syscall;
52 struct agent_expr;
53 struct axs_value;
54 struct stap_parse_info;
55 struct expr_builder;
56 struct ravenscar_arch_ops;
57 struct mem_range;
58 struct syscalls_info;
59 struct thread_info;
60 struct ui_out;
61 struct inferior;
62
63 #include "regcache.h"
64
65 /* The architecture associated with the inferior through the
66 connection to the target.
67
68 The architecture vector provides some information that is really a
69 property of the inferior, accessed through a particular target:
70 ptrace operations; the layout of certain RSP packets; the solib_ops
71 vector; etc. To differentiate architecture accesses to
72 per-inferior/target properties from
73 per-thread/per-frame/per-objfile properties, accesses to
74 per-inferior/target properties should be made through this
75 gdbarch. */
76
77 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
78 extern struct gdbarch *target_gdbarch (void);
79
80 /* Callback type for the 'iterate_over_objfiles_in_search_order'
81 gdbarch method. */
82
83 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
84 (struct objfile *objfile, void *cb_data);
85
86 /* Callback type for regset section iterators. The callback usually
87 invokes the REGSET's supply or collect method, to which it must
88 pass a buffer - for collects this buffer will need to be created using
89 COLLECT_SIZE, for supply the existing buffer being read from should
90 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
91 is used for diagnostic messages. CB_DATA should have been passed
92 unchanged through the iterator. */
93
94 typedef void (iterate_over_regset_sections_cb)
95 (const char *sect_name, int supply_size, int collect_size,
96 const struct regset *regset, const char *human_name, void *cb_data);
97
98 /* For a function call, does the function return a value using a
99 normal value return or a structure return - passing a hidden
100 argument pointing to storage. For the latter, there are two
101 cases: language-mandated structure return and target ABI
102 structure return. */
103
104 enum function_call_return_method
105 {
106 /* Standard value return. */
107 return_method_normal = 0,
108
109 /* Language ABI structure return. This is handled
110 by passing the return location as the first parameter to
111 the function, even preceding "this". */
112 return_method_hidden_param,
113
114 /* Target ABI struct return. This is target-specific; for instance,
115 on ia64 the first argument is passed in out0 but the hidden
116 structure return pointer would normally be passed in r8. */
117 return_method_struct,
118 };
119
120 enum class memtag_type
121 {
122 /* Logical tag, the tag that is stored in unused bits of a pointer to a
123 virtual address. */
124 logical = 0,
125
126 /* Allocation tag, the tag that is associated with every granule of memory in
127 the physical address space. Allocation tags are used to validate memory
128 accesses via pointers containing logical tags. */
129 allocation,
130 };
131
132
133
134 /* The following are pre-initialized by GDBARCH. */
135
136 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
137 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
138
139 extern enum bfd_endian gdbarch_byte_order (struct gdbarch *gdbarch);
140 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
141
142 extern enum bfd_endian gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
143 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
144
145 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
146 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
147
148 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
149 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
150
151
152 /* The following are initialized by the target dependent code. */
153
154 /* Number of bits in a short or unsigned short for the target machine. */
155
156 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
157 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
158
159 /* Number of bits in an int or unsigned int for the target machine. */
160
161 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
162 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
163
164 /* Number of bits in a long or unsigned long for the target machine. */
165
166 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
167 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
168
169 /* Number of bits in a long long or unsigned long long for the target
170 machine. */
171
172 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
173 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
174
175 /* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and
176 "long double". These bit/format pairs should eventually be combined
177 into a single object. For the moment, just initialize them as a pair.
178 Each format describes both the big and little endian layouts (if
179 useful). */
180
181 extern int gdbarch_bfloat16_bit (struct gdbarch *gdbarch);
182 extern void set_gdbarch_bfloat16_bit (struct gdbarch *gdbarch, int bfloat16_bit);
183
184 extern const struct floatformat ** gdbarch_bfloat16_format (struct gdbarch *gdbarch);
185 extern void set_gdbarch_bfloat16_format (struct gdbarch *gdbarch, const struct floatformat ** bfloat16_format);
186
187 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
188 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
189
190 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
191 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
192
193 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
194 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
195
196 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
197 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
198
199 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
200 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
201
202 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
203 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
204
205 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
206 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
207
208 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
209 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
210
211 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
212 starting with C++11. */
213
214 extern int gdbarch_wchar_bit (struct gdbarch *gdbarch);
215 extern void set_gdbarch_wchar_bit (struct gdbarch *gdbarch, int wchar_bit);
216
217 /* One if `wchar_t' is signed, zero if unsigned. */
218
219 extern int gdbarch_wchar_signed (struct gdbarch *gdbarch);
220 extern void set_gdbarch_wchar_signed (struct gdbarch *gdbarch, int wchar_signed);
221
222 /* Returns the floating-point format to be used for values of length LENGTH.
223 NAME, if non-NULL, is the type name, which may be used to distinguish
224 different target formats of the same length. */
225
226 typedef const struct floatformat ** (gdbarch_floatformat_for_type_ftype) (struct gdbarch *gdbarch, const char *name, int length);
227 extern const struct floatformat ** gdbarch_floatformat_for_type (struct gdbarch *gdbarch, const char *name, int length);
228 extern void set_gdbarch_floatformat_for_type (struct gdbarch *gdbarch, gdbarch_floatformat_for_type_ftype *floatformat_for_type);
229
230 /* For most targets, a pointer on the target and its representation as an
231 address in GDB have the same size and "look the same". For such a
232 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
233 / addr_bit will be set from it.
234
235 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
236 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
237 gdbarch_address_to_pointer as well.
238
239 ptr_bit is the size of a pointer on the target */
240
241 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
242 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
243
244 /* addr_bit is the size of a target address as represented in gdb */
245
246 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
247 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
248
249 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
250 info. For .debug_frame FDEs, this is supposed to be the target address
251 size from the associated CU header, and which is equivalent to the
252 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
253 Unfortunately there is no good way to determine this value. Therefore
254 dwarf2_addr_size simply defaults to the target pointer size.
255
256 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
257 defined using the target's pointer size so far.
258
259 Note that dwarf2_addr_size only needs to be redefined by a target if the
260 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
261 and if Dwarf versions < 4 need to be supported. */
262
263 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
264 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
265
266 /* One if `char' acts like `signed char', zero if `unsigned char'. */
267
268 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
269 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
270
271 extern bool gdbarch_read_pc_p (struct gdbarch *gdbarch);
272
273 typedef CORE_ADDR (gdbarch_read_pc_ftype) (readable_regcache *regcache);
274 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, readable_regcache *regcache);
275 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
276
277 extern bool gdbarch_write_pc_p (struct gdbarch *gdbarch);
278
279 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
280 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
281 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
282
283 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
284 whole scheme for dealing with "frames" and "frame pointers" needs a
285 serious shakedown. */
286
287 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
288 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
289 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
290
291 extern bool gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
292
293 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf);
294 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf);
295 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
296
297 /* Read a register into a new struct value. If the register is wholly
298 or partly unavailable, this should call mark_value_bytes_unavailable
299 as appropriate. If this is defined, then pseudo_register_read will
300 never be called. */
301
302 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
303
304 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum);
305 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum);
306 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
307
308 extern bool gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
309
310 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
311 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
312 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
313
314 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
315 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
316
317 /* This macro gives the number of pseudo-registers that live in the
318 register namespace but do not get fetched or stored on the target.
319 These pseudo-registers may be aliases for other registers,
320 combinations of other registers, or they may be computed by GDB. */
321
322 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
323 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
324
325 /* Assemble agent expression bytecode to collect pseudo-register REG.
326 Return -1 if something goes wrong, 0 otherwise. */
327
328 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
329
330 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
331 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
332 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
333
334 /* Assemble agent expression bytecode to push the value of pseudo-register
335 REG on the interpreter stack.
336 Return -1 if something goes wrong, 0 otherwise. */
337
338 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
339
340 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
341 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
342 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
343
344 /* Some architectures can display additional information for specific
345 signals.
346 UIOUT is the output stream where the handler will place information. */
347
348 extern bool gdbarch_report_signal_info_p (struct gdbarch *gdbarch);
349
350 typedef void (gdbarch_report_signal_info_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout, enum gdb_signal siggnal);
351 extern void gdbarch_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, enum gdb_signal siggnal);
352 extern void set_gdbarch_report_signal_info (struct gdbarch *gdbarch, gdbarch_report_signal_info_ftype *report_signal_info);
353
354 /* GDB's standard (or well known) register numbers. These can map onto
355 a real register or a pseudo (computed) register or not be defined at
356 all (-1).
357 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
358
359 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
360 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
361
362 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
363 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
364
365 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
366 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
367
368 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
369 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
370
371 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
372
373 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
374 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
375 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
376
377 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
378
379 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
380 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
381 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
382
383 /* Convert from an sdb register number to an internal gdb register number. */
384
385 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
386 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
387 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
388
389 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
390 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
391
392 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
393 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
394 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
395
396 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
397 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
398 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
399
400 /* Return the type of a register specified by the architecture. Only
401 the register cache should call this function directly; others should
402 use "register_type". */
403
404 extern bool gdbarch_register_type_p (struct gdbarch *gdbarch);
405
406 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
407 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
408 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
409
410 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
411 a dummy frame. A dummy frame is created before an inferior call,
412 the frame_id returned here must match the frame_id that was built
413 for the inferior call. Usually this means the returned frame_id's
414 stack address should match the address returned by
415 gdbarch_push_dummy_call, and the returned frame_id's code address
416 should match the address at which the breakpoint was set in the dummy
417 frame. */
418
419 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
420 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
421 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
422
423 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
424 deprecated_fp_regnum. */
425
426 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
427 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
428
429 extern bool gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
430
431 typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr);
432 extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr);
433 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
434
435 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
436 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
437
438 extern bool gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
439
440 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
441 extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
442 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
443
444 /* Return true if the code of FRAME is writable. */
445
446 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
447 extern int gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, struct frame_info *frame);
448 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable);
449
450 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
451 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
452 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
453
454 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
455 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
456 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
457
458 extern bool gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
459
460 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
461 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
462 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
463
464 /* MAP a GDB RAW register number onto a simulator register number. See
465 also include/...-sim.h. */
466
467 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
468 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
469 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
470
471 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
472 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
473 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
474
475 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
476 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
477 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
478
479 /* Determine the address where a longjmp will land and save this address
480 in PC. Return nonzero on success.
481
482 FRAME corresponds to the longjmp frame. */
483
484 extern bool gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
485
486 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
487 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
488 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
489
490 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
491 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
492
493 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
494 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
495 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
496
497 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
498 extern int gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
499 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
500
501 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
502 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
503 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
504
505 /* Construct a value representing the contents of register REGNUM in
506 frame FRAME_ID, interpreted as type TYPE. The routine needs to
507 allocate and return a struct value with all value attributes
508 (but not the value contents) filled in. */
509
510 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
511 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
512 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
513
514 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
515 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
516 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
517
518 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
519 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
520 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
521
522 extern bool gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
523
524 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
525 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
526 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
527
528 /* Return the return-value convention that will be used by FUNCTION
529 to return a value of type VALTYPE. FUNCTION may be NULL in which
530 case the return convention is computed based only on VALTYPE.
531
532 If READBUF is not NULL, extract the return value and save it in this buffer.
533
534 If WRITEBUF is not NULL, it contains a return value which will be
535 stored into the appropriate register. This can be used when we want
536 to force the value returned by a function (see the "return" command
537 for instance). */
538
539 extern bool gdbarch_return_value_p (struct gdbarch *gdbarch);
540
541 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
542 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
543 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
544
545 /* Return true if the return value of function is stored in the first hidden
546 parameter. In theory, this feature should be language-dependent, specified
547 by language and its ABI, such as C++. Unfortunately, compiler may
548 implement it to a target-dependent feature. So that we need such hook here
549 to be aware of this in GDB. */
550
551 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
552 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
553 extern void set_gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, gdbarch_return_in_first_hidden_param_p_ftype *return_in_first_hidden_param_p);
554
555 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
556 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
557 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
558
559 extern bool gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
560
561 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
562 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
563 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
564
565 /* On some platforms, a single function may provide multiple entry points,
566 e.g. one that is used for function-pointer calls and a different one
567 that is used for direct function calls.
568 In order to ensure that breakpoints set on the function will trigger
569 no matter via which entry point the function is entered, a platform
570 may provide the skip_entrypoint callback. It is called with IP set
571 to the main entry point of a function (as determined by the symbol table),
572 and should return the address of the innermost entry point, where the
573 actual breakpoint needs to be set. Note that skip_entrypoint is used
574 by GDB common code even when debugging optimized code, where skip_prologue
575 is not used. */
576
577 extern bool gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
578
579 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
580 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
581 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
582
583 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
584 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
585 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
586
587 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
588 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
589 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
590
591 /* Return the breakpoint kind for this target based on *PCPTR. */
592
593 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
594 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
595 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc);
596
597 /* Return the software breakpoint from KIND. KIND can have target
598 specific meaning like the Z0 kind parameter.
599 SIZE is set to the software breakpoint's length in memory. */
600
601 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size);
602 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size);
603 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind);
604
605 /* Return the breakpoint kind for this target based on the current
606 processor state (e.g. the current instruction mode on ARM) and the
607 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
608
609 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
610 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
611 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state);
612
613 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
614
615 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
616 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
617 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
618
619 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
620 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
621 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
622
623 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
624 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
625 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
626
627 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
628 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
629
630 /* A function can be addressed by either it's "pointer" (possibly a
631 descriptor address) or "entry point" (first executable instruction).
632 The method "convert_from_func_ptr_addr" converting the former to the
633 latter. gdbarch_deprecated_function_start_offset is being used to implement
634 a simplified subset of that functionality - the function's address
635 corresponds to the "function pointer" and the function's start
636 corresponds to the "function entry point" - and hence is redundant. */
637
638 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
639 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
640
641 /* Return the remote protocol register number associated with this
642 register. Normally the identity mapping. */
643
644 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
645 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
646 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
647
648 /* Fetch the target specific address used to represent a load module. */
649
650 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
651
652 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
653 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
654 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
655
656 /* Return the thread-local address at OFFSET in the thread-local
657 storage for the thread PTID and the shared library or executable
658 file given by LM_ADDR. If that block of thread-local storage hasn't
659 been allocated yet, this function may throw an error. LM_ADDR may
660 be zero for statically linked multithreaded inferiors. */
661
662 extern bool gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch);
663
664 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
665 extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
666 extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address);
667
668 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
669 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
670
671 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
672 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
673 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
674
675 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
676 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
677 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
678
679 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
680 frame-base. Enable frame-base before frame-unwind. */
681
682 extern bool gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
683
684 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
685 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
686 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
687
688 extern bool gdbarch_frame_align_p (struct gdbarch *gdbarch);
689
690 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
691 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
692 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
693
694 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
695 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
696 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
697
698 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
699 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
700
701 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
702 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
703 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
704
705 /* On some machines there are bits in addresses which are not really
706 part of the address, but are used by the kernel, the hardware, etc.
707 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
708 we get a "real" address such as one would find in a symbol table.
709 This is used only for addresses of instructions, and even then I'm
710 not sure it's used in all contexts. It exists to deal with there
711 being a few stray bits in the PC which would mislead us, not as some
712 sort of generic thing to handle alignment or segmentation (it's
713 possible it should be in TARGET_READ_PC instead). */
714
715 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
716 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
717 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
718
719 /* On some machines, not all bits of an address word are significant.
720 For example, on AArch64, the top bits of an address known as the "tag"
721 are ignored by the kernel, the hardware, etc. and can be regarded as
722 additional data associated with the address. */
723
724 extern int gdbarch_significant_addr_bit (struct gdbarch *gdbarch);
725 extern void set_gdbarch_significant_addr_bit (struct gdbarch *gdbarch, int significant_addr_bit);
726
727 /* Return a string representation of the memory tag TAG. */
728
729 typedef std::string (gdbarch_memtag_to_string_ftype) (struct gdbarch *gdbarch, struct value *tag);
730 extern std::string gdbarch_memtag_to_string (struct gdbarch *gdbarch, struct value *tag);
731 extern void set_gdbarch_memtag_to_string (struct gdbarch *gdbarch, gdbarch_memtag_to_string_ftype *memtag_to_string);
732
733 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
734 must be either a pointer or a reference type. */
735
736 typedef bool (gdbarch_tagged_address_p_ftype) (struct gdbarch *gdbarch, struct value *address);
737 extern bool gdbarch_tagged_address_p (struct gdbarch *gdbarch, struct value *address);
738 extern void set_gdbarch_tagged_address_p (struct gdbarch *gdbarch, gdbarch_tagged_address_p_ftype *tagged_address_p);
739
740 /* Return true if the tag from ADDRESS matches the memory tag for that
741 particular address. Return false otherwise. */
742
743 typedef bool (gdbarch_memtag_matches_p_ftype) (struct gdbarch *gdbarch, struct value *address);
744 extern bool gdbarch_memtag_matches_p (struct gdbarch *gdbarch, struct value *address);
745 extern void set_gdbarch_memtag_matches_p (struct gdbarch *gdbarch, gdbarch_memtag_matches_p_ftype *memtag_matches_p);
746
747 /* Set the tags of type TAG_TYPE, for the memory address range
748 [ADDRESS, ADDRESS + LENGTH) to TAGS.
749 Return true if successful and false otherwise. */
750
751 typedef bool (gdbarch_set_memtags_ftype) (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
752 extern bool gdbarch_set_memtags (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
753 extern void set_gdbarch_set_memtags (struct gdbarch *gdbarch, gdbarch_set_memtags_ftype *set_memtags);
754
755 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
756 assuming ADDRESS is tagged. */
757
758 typedef struct value * (gdbarch_get_memtag_ftype) (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
759 extern struct value * gdbarch_get_memtag (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
760 extern void set_gdbarch_get_memtag (struct gdbarch *gdbarch, gdbarch_get_memtag_ftype *get_memtag);
761
762 /* memtag_granule_size is the size of the allocation tag granule, for
763 architectures that support memory tagging.
764 This is 0 for architectures that do not support memory tagging.
765 For a non-zero value, this represents the number of bytes of memory per tag. */
766
767 extern CORE_ADDR gdbarch_memtag_granule_size (struct gdbarch *gdbarch);
768 extern void set_gdbarch_memtag_granule_size (struct gdbarch *gdbarch, CORE_ADDR memtag_granule_size);
769
770 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
771 indicates if the target needs software single step. An ISA method to
772 implement it.
773
774 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
775 target can single step. If not, then implement single step using breakpoints.
776
777 Return a vector of addresses on which the software single step
778 breakpoints should be inserted. NULL means software single step is
779 not used.
780 Multiple breakpoints may be inserted for some instructions such as
781 conditional branch. However, each implementation must always evaluate
782 the condition and only put the breakpoint at the branch destination if
783 the condition is true, so that we ensure forward progress when stepping
784 past a conditional branch to self. */
785
786 extern bool gdbarch_software_single_step_p (struct gdbarch *gdbarch);
787
788 typedef std::vector<CORE_ADDR> (gdbarch_software_single_step_ftype) (struct regcache *regcache);
789 extern std::vector<CORE_ADDR> gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
790 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
791
792 /* Return non-zero if the processor is executing a delay slot and a
793 further single-step is needed before the instruction finishes. */
794
795 extern bool gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
796
797 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
798 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
799 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
800
801 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
802 disassembler. Perhaps objdump can handle it? */
803
804 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
805 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
806 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
807
808 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
809 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
810 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
811
812 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
813 evaluates non-zero, this is the address where the debugger will place
814 a step-resume breakpoint to get us past the dynamic linker. */
815
816 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
817 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
818 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
819
820 /* Some systems also have trampoline code for returning from shared libs. */
821
822 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
823 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
824 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
825
826 /* Return true if PC lies inside an indirect branch thunk. */
827
828 typedef bool (gdbarch_in_indirect_branch_thunk_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
829 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, CORE_ADDR pc);
830 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk);
831
832 /* A target might have problems with watchpoints as soon as the stack
833 frame of the current function has been destroyed. This mostly happens
834 as the first action in a function's epilogue. stack_frame_destroyed_p()
835 is defined to return a non-zero value if either the given addr is one
836 instruction after the stack destroying instruction up to the trailing
837 return instruction or if we can figure out that the stack frame has
838 already been invalidated regardless of the value of addr. Targets
839 which don't suffer from that problem could just let this functionality
840 untouched. */
841
842 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
843 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
844 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
845
846 /* Process an ELF symbol in the minimal symbol table in a backend-specific
847 way. Normally this hook is supposed to do nothing, however if required,
848 then this hook can be used to apply tranformations to symbols that are
849 considered special in some way. For example the MIPS backend uses it
850 to interpret `st_other' information to mark compressed code symbols so
851 that they can be treated in the appropriate manner in the processing of
852 the main symbol table and DWARF-2 records. */
853
854 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
855
856 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
857 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
858 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
859
860 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
861 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
862 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
863
864 /* Process a symbol in the main symbol table in a backend-specific way.
865 Normally this hook is supposed to do nothing, however if required,
866 then this hook can be used to apply tranformations to symbols that
867 are considered special in some way. This is currently used by the
868 MIPS backend to make sure compressed code symbols have the ISA bit
869 set. This in turn is needed for symbol values seen in GDB to match
870 the values used at the runtime by the program itself, for function
871 and label references. */
872
873 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
874 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
875 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
876
877 /* Adjust the address retrieved from a DWARF-2 record other than a line
878 entry in a backend-specific way. Normally this hook is supposed to
879 return the address passed unchanged, however if that is incorrect for
880 any reason, then this hook can be used to fix the address up in the
881 required manner. This is currently used by the MIPS backend to make
882 sure addresses in FDE, range records, etc. referring to compressed
883 code have the ISA bit set, matching line information and the symbol
884 table. */
885
886 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
887 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
888 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
889
890 /* Adjust the address updated by a line entry in a backend-specific way.
891 Normally this hook is supposed to return the address passed unchanged,
892 however in the case of inconsistencies in these records, this hook can
893 be used to fix them up in the required manner. This is currently used
894 by the MIPS backend to make sure all line addresses in compressed code
895 are presented with the ISA bit set, which is not always the case. This
896 in turn ensures breakpoint addresses are correctly matched against the
897 stop PC. */
898
899 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
900 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
901 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
902
903 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
904 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
905
906 /* See comment in target.h about continuable, steppable and
907 non-steppable watchpoints. */
908
909 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
910 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
911
912 extern bool gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
913
914 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
915 extern type_instance_flags gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
916 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
917
918 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
919
920 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, type_instance_flags type_flags);
921 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, type_instance_flags type_flags);
922 extern void set_gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_to_name_ftype *address_class_type_flags_to_name);
923
924 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
925 FS are passed from the generic execute_cfa_program function. */
926
927 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype) (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
928 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
929 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op);
930
931 /* Return the appropriate type_flags for the supplied address class.
932 This function should return true if the address class was recognized and
933 type_flags was set, false otherwise. */
934
935 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
936
937 typedef bool (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
938 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
939 extern void set_gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_name_to_type_flags_ftype *address_class_name_to_type_flags);
940
941 /* Is a register in a group */
942
943 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
944 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
945 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
946
947 /* Fetch the pointer to the ith function argument. */
948
949 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
950
951 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
952 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
953 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
954
955 /* Iterate over all supported register notes in a core file. For each
956 supported register note section, the iterator must call CB and pass
957 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
958 the supported register note sections based on the current register
959 values. Otherwise it should enumerate all supported register note
960 sections. */
961
962 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
963
964 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
965 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
966 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
967
968 /* Create core file notes */
969
970 extern bool gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
971
972 typedef gdb::unique_xmalloc_ptr<char> (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
973 extern gdb::unique_xmalloc_ptr<char> gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
974 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
975
976 /* Find core file memory regions */
977
978 extern bool gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
979
980 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
981 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
982 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
983
984 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
985 core file into buffer READBUF with length LEN. Return the number of bytes read
986 (zero indicates failure).
987 failed, otherwise, return the red length of READBUF. */
988
989 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
990
991 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
992 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
993 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
994
995 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
996 libraries list from core file into buffer READBUF with length LEN.
997 Return the number of bytes read (zero indicates failure). */
998
999 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
1000
1001 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
1002 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
1003 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
1004
1005 /* How the core target converts a PTID from a core file to a string. */
1006
1007 extern bool gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
1008
1009 typedef std::string (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1010 extern std::string gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
1011 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
1012
1013 /* How the core target extracts the name of a thread from a core file. */
1014
1015 extern bool gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
1016
1017 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
1018 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
1019 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
1020
1021 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
1022 from core file into buffer READBUF with length LEN. Return the number
1023 of bytes read (zero indicates EOF, a negative value indicates failure). */
1024
1025 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch);
1026
1027 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
1028 extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
1029 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo);
1030
1031 /* BFD target to use when generating a core file. */
1032
1033 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
1034
1035 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
1036 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
1037
1038 /* If the elements of C++ vtables are in-place function descriptors rather
1039 than normal function pointers (which may point to code or a descriptor),
1040 set this to one. */
1041
1042 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
1043 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
1044
1045 /* Set if the least significant bit of the delta is used instead of the least
1046 significant bit of the pfn for pointers to virtual member functions. */
1047
1048 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
1049 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
1050
1051 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1052
1053 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
1054 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
1055 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
1056
1057 /* The maximum length of an instruction on this architecture in bytes. */
1058
1059 extern bool gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
1060
1061 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
1062 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
1063
1064 /* Copy the instruction at FROM to TO, and make any adjustments
1065 necessary to single-step it at that address.
1066
1067 REGS holds the state the thread's registers will have before
1068 executing the copied instruction; the PC in REGS will refer to FROM,
1069 not the copy at TO. The caller should update it to point at TO later.
1070
1071 Return a pointer to data of the architecture's choice to be passed
1072 to gdbarch_displaced_step_fixup.
1073
1074 For a general explanation of displaced stepping and how GDB uses it,
1075 see the comments in infrun.c.
1076
1077 The TO area is only guaranteed to have space for
1078 gdbarch_max_insn_length (arch) bytes, so this function must not
1079 write more bytes than that to that area.
1080
1081 If you do not provide this function, GDB assumes that the
1082 architecture does not support displaced stepping.
1083
1084 If the instruction cannot execute out of line, return NULL. The
1085 core falls back to stepping past the instruction in-line instead in
1086 that case. */
1087
1088 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
1089
1090 typedef displaced_step_copy_insn_closure_up (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1091 extern displaced_step_copy_insn_closure_up gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1092 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
1093
1094 /* Return true if GDB should use hardware single-stepping to execute a displaced
1095 step instruction. If false, GDB will simply restart execution at the
1096 displaced instruction location, and it is up to the target to ensure GDB will
1097 receive control again (e.g. by placing a software breakpoint instruction into
1098 the displaced instruction buffer).
1099
1100 The default implementation returns false on all targets that provide a
1101 gdbarch_software_single_step routine, and true otherwise. */
1102
1103 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch);
1104 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch);
1105 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
1106
1107 /* Fix up the state resulting from successfully single-stepping a
1108 displaced instruction, to give the result we would have gotten from
1109 stepping the instruction in its original location.
1110
1111 REGS is the register state resulting from single-stepping the
1112 displaced instruction.
1113
1114 CLOSURE is the result from the matching call to
1115 gdbarch_displaced_step_copy_insn.
1116
1117 If you provide gdbarch_displaced_step_copy_insn.but not this
1118 function, then GDB assumes that no fixup is needed after
1119 single-stepping the instruction.
1120
1121 For a general explanation of displaced stepping and how GDB uses it,
1122 see the comments in infrun.c. */
1123
1124 extern bool gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
1125
1126 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_copy_insn_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1127 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_copy_insn_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1128 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
1129
1130 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1131
1132 Throw an exception if any unexpected error happens. */
1133
1134 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch *gdbarch);
1135
1136 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype) (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1137 extern displaced_step_prepare_status gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1138 extern void set_gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, gdbarch_displaced_step_prepare_ftype *displaced_step_prepare);
1139
1140 /* Clean up after a displaced step of THREAD. */
1141
1142 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype) (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1143 extern displaced_step_finish_status gdbarch_displaced_step_finish (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1144 extern void set_gdbarch_displaced_step_finish (struct gdbarch *gdbarch, gdbarch_displaced_step_finish_ftype *displaced_step_finish);
1145
1146 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1147
1148 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch *gdbarch);
1149
1150 typedef const displaced_step_copy_insn_closure * (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype) (inferior *inf, CORE_ADDR addr);
1151 extern const displaced_step_copy_insn_closure * gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch *gdbarch, inferior *inf, CORE_ADDR addr);
1152 extern void set_gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_closure_by_addr_ftype *displaced_step_copy_insn_closure_by_addr);
1153
1154 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1155 contents of all displaced step buffers in the child's address space. */
1156
1157 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype) (inferior *parent_inf, ptid_t child_ptid);
1158 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch *gdbarch, inferior *parent_inf, ptid_t child_ptid);
1159 extern void set_gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch *gdbarch, gdbarch_displaced_step_restore_all_in_ptid_ftype *displaced_step_restore_all_in_ptid);
1160
1161 /* Relocate an instruction to execute at a different address. OLDLOC
1162 is the address in the inferior memory where the instruction to
1163 relocate is currently at. On input, TO points to the destination
1164 where we want the instruction to be copied (and possibly adjusted)
1165 to. On output, it points to one past the end of the resulting
1166 instruction(s). The effect of executing the instruction at TO shall
1167 be the same as if executing it at FROM. For example, call
1168 instructions that implicitly push the return address on the stack
1169 should be adjusted to return to the instruction after OLDLOC;
1170 relative branches, and other PC-relative instructions need the
1171 offset adjusted; etc. */
1172
1173 extern bool gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1174
1175 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1176 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1177 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1178
1179 /* Refresh overlay mapped state for section OSECT. */
1180
1181 extern bool gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1182
1183 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1184 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1185 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1186
1187 extern bool gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1188
1189 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1190 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1191 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1192
1193 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1194
1195 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1196 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1197
1198 /* Parse the instruction at ADDR storing in the record execution log
1199 the registers REGCACHE and memory ranges that will be affected when
1200 the instruction executes, along with their current values.
1201 Return -1 if something goes wrong, 0 otherwise. */
1202
1203 extern bool gdbarch_process_record_p (struct gdbarch *gdbarch);
1204
1205 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1206 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1207 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1208
1209 /* Save process state after a signal.
1210 Return -1 if something goes wrong, 0 otherwise. */
1211
1212 extern bool gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1213
1214 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1215 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1216 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1217
1218 /* Signal translation: translate inferior's signal (target's) number
1219 into GDB's representation. The implementation of this method must
1220 be host independent. IOW, don't rely on symbols of the NAT_FILE
1221 header (the nm-*.h files), the host <signal.h> header, or similar
1222 headers. This is mainly used when cross-debugging core files ---
1223 "Live" targets hide the translation behind the target interface
1224 (target_wait, target_resume, etc.). */
1225
1226 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1227
1228 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1229 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1230 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1231
1232 /* Signal translation: translate the GDB's internal signal number into
1233 the inferior's signal (target's) representation. The implementation
1234 of this method must be host independent. IOW, don't rely on symbols
1235 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1236 header, or similar headers.
1237 Return the target signal number if found, or -1 if the GDB internal
1238 signal number is invalid. */
1239
1240 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1241
1242 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1243 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1244 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1245
1246 /* Extra signal info inspection.
1247
1248 Return a type suitable to inspect extra signal information. */
1249
1250 extern bool gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1251
1252 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1253 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1254 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1255
1256 /* Record architecture-specific information from the symbol table. */
1257
1258 extern bool gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1259
1260 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1261 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1262 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1263
1264 /* Function for the 'catch syscall' feature.
1265 Get architecture-specific system calls information from registers. */
1266
1267 extern bool gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1268
1269 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread);
1270 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread);
1271 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1272
1273 /* The filename of the XML syscall for this architecture. */
1274
1275 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1276 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1277
1278 /* Information about system calls from this architecture */
1279
1280 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1281 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1282
1283 /* SystemTap related fields and functions.
1284 A NULL-terminated array of prefixes used to mark an integer constant
1285 on the architecture's assembly.
1286 For example, on x86 integer constants are written as:
1287
1288 $10 ;; integer constant 10
1289
1290 in this case, this prefix would be the character `$'. */
1291
1292 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1293 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1294
1295 /* A NULL-terminated array of suffixes used to mark an integer constant
1296 on the architecture's assembly. */
1297
1298 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1299 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1300
1301 /* A NULL-terminated array of prefixes used to mark a register name on
1302 the architecture's assembly.
1303 For example, on x86 the register name is written as:
1304
1305 %eax ;; register eax
1306
1307 in this case, this prefix would be the character `%'. */
1308
1309 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1310 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1311
1312 /* A NULL-terminated array of suffixes used to mark a register name on
1313 the architecture's assembly. */
1314
1315 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1316 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1317
1318 /* A NULL-terminated array of prefixes used to mark a register
1319 indirection on the architecture's assembly.
1320 For example, on x86 the register indirection is written as:
1321
1322 (%eax) ;; indirecting eax
1323
1324 in this case, this prefix would be the charater `('.
1325
1326 Please note that we use the indirection prefix also for register
1327 displacement, e.g., `4(%eax)' on x86. */
1328
1329 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1330 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1331
1332 /* A NULL-terminated array of suffixes used to mark a register
1333 indirection on the architecture's assembly.
1334 For example, on x86 the register indirection is written as:
1335
1336 (%eax) ;; indirecting eax
1337
1338 in this case, this prefix would be the charater `)'.
1339
1340 Please note that we use the indirection suffix also for register
1341 displacement, e.g., `4(%eax)' on x86. */
1342
1343 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1344 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1345
1346 /* Prefix(es) used to name a register using GDB's nomenclature.
1347
1348 For example, on PPC a register is represented by a number in the assembly
1349 language (e.g., `10' is the 10th general-purpose register). However,
1350 inside GDB this same register has an `r' appended to its name, so the 10th
1351 register would be represented as `r10' internally. */
1352
1353 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1354 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1355
1356 /* Suffix used to name a register using GDB's nomenclature. */
1357
1358 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1359 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1360
1361 /* Check if S is a single operand.
1362
1363 Single operands can be:
1364 - Literal integers, e.g. `$10' on x86
1365 - Register access, e.g. `%eax' on x86
1366 - Register indirection, e.g. `(%eax)' on x86
1367 - Register displacement, e.g. `4(%eax)' on x86
1368
1369 This function should check for these patterns on the string
1370 and return 1 if some were found, or zero otherwise. Please try to match
1371 as much info as you can from the string, i.e., if you have to match
1372 something like `(%', do not match just the `('. */
1373
1374 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1375
1376 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1377 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1378 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1379
1380 /* Function used to handle a "special case" in the parser.
1381
1382 A "special case" is considered to be an unknown token, i.e., a token
1383 that the parser does not know how to parse. A good example of special
1384 case would be ARM's register displacement syntax:
1385
1386 [R0, #4] ;; displacing R0 by 4
1387
1388 Since the parser assumes that a register displacement is of the form:
1389
1390 <number> <indirection_prefix> <register_name> <indirection_suffix>
1391
1392 it means that it will not be able to recognize and parse this odd syntax.
1393 Therefore, we should add a special case function that will handle this token.
1394
1395 This function should generate the proper expression form of the expression
1396 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1397 and so on). It should also return 1 if the parsing was successful, or zero
1398 if the token was not recognized as a special token (in this case, returning
1399 zero means that the special parser is deferring the parsing to the generic
1400 parser), and should advance the buffer pointer (p->arg). */
1401
1402 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1403
1404 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1405 extern expr::operation_up gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1406 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1407
1408 /* Perform arch-dependent adjustments to a register name.
1409
1410 In very specific situations, it may be necessary for the register
1411 name present in a SystemTap probe's argument to be handled in a
1412 special way. For example, on i386, GCC may over-optimize the
1413 register allocation and use smaller registers than necessary. In
1414 such cases, the client that is reading and evaluating the SystemTap
1415 probe (ourselves) will need to actually fetch values from the wider
1416 version of the register in question.
1417
1418 To illustrate the example, consider the following probe argument
1419 (i386):
1420
1421 4@%ax
1422
1423 This argument says that its value can be found at the %ax register,
1424 which is a 16-bit register. However, the argument's prefix says
1425 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1426 this case, GDB should actually fetch the probe's value from register
1427 %eax, not %ax. In this scenario, this function would actually
1428 replace the register name from %ax to %eax.
1429
1430 The rationale for this can be found at PR breakpoints/24541. */
1431
1432 extern bool gdbarch_stap_adjust_register_p (struct gdbarch *gdbarch);
1433
1434 typedef std::string (gdbarch_stap_adjust_register_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1435 extern std::string gdbarch_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1436 extern void set_gdbarch_stap_adjust_register (struct gdbarch *gdbarch, gdbarch_stap_adjust_register_ftype *stap_adjust_register);
1437
1438 /* DTrace related functions.
1439 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1440 NARG must be >= 0. */
1441
1442 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
1443
1444 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, int narg);
1445 extern expr::operation_up gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, int narg);
1446 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1447
1448 /* True if the given ADDR does not contain the instruction sequence
1449 corresponding to a disabled DTrace is-enabled probe. */
1450
1451 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
1452
1453 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1454 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
1455 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1456
1457 /* Enable a DTrace is-enabled probe at ADDR. */
1458
1459 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
1460
1461 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1462 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1463 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1464
1465 /* Disable a DTrace is-enabled probe at ADDR. */
1466
1467 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
1468
1469 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1470 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1471 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1472
1473 /* True if the list of shared libraries is one and only for all
1474 processes, as opposed to a list of shared libraries per inferior.
1475 This usually means that all processes, although may or may not share
1476 an address space, will see the same set of symbols at the same
1477 addresses. */
1478
1479 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1480 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1481
1482 /* On some targets, even though each inferior has its own private
1483 address space, the debug interface takes care of making breakpoints
1484 visible to all address spaces automatically. For such cases,
1485 this property should be set to true. */
1486
1487 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1488 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1489
1490 /* True if inferiors share an address space (e.g., uClinux). */
1491
1492 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1493 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1494 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1495
1496 /* True if a fast tracepoint can be set at an address. */
1497
1498 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1499 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1500 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1501
1502 /* Guess register state based on tracepoint location. Used for tracepoints
1503 where no registers have been collected, but there's only one location,
1504 allowing us to guess the PC value, and perhaps some other registers.
1505 On entry, regcache has all registers marked as unavailable. */
1506
1507 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1508 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1509 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1510
1511 /* Return the "auto" target charset. */
1512
1513 typedef const char * (gdbarch_auto_charset_ftype) (void);
1514 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1515 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1516
1517 /* Return the "auto" target wide charset. */
1518
1519 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1520 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1521 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1522
1523 /* If non-empty, this is a file extension that will be opened in place
1524 of the file extension reported by the shared library list.
1525
1526 This is most useful for toolchains that use a post-linker tool,
1527 where the names of the files run on the target differ in extension
1528 compared to the names of the files GDB should load for debug info. */
1529
1530 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1531 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1532
1533 /* If true, the target OS has DOS-based file system semantics. That
1534 is, absolute paths include a drive name, and the backslash is
1535 considered a directory separator. */
1536
1537 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1538 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1539
1540 /* Generate bytecodes to collect the return address in a frame.
1541 Since the bytecodes run on the target, possibly with GDB not even
1542 connected, the full unwinding machinery is not available, and
1543 typically this function will issue bytecodes for one or more likely
1544 places that the return address may be found. */
1545
1546 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1547 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1548 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1549
1550 /* Implement the "info proc" command. */
1551
1552 extern bool gdbarch_info_proc_p (struct gdbarch *gdbarch);
1553
1554 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1555 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1556 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1557
1558 /* Implement the "info proc" command for core files. Noe that there
1559 are two "info_proc"-like methods on gdbarch -- one for core files,
1560 one for live targets. */
1561
1562 extern bool gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1563
1564 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1565 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1566 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1567
1568 /* Iterate over all objfiles in the order that makes the most sense
1569 for the architecture to make global symbol searches.
1570
1571 CB is a callback function where OBJFILE is the objfile to be searched,
1572 and CB_DATA a pointer to user-defined data (the same data that is passed
1573 when calling this gdbarch method). The iteration stops if this function
1574 returns nonzero.
1575
1576 CB_DATA is a pointer to some user-defined data to be passed to
1577 the callback.
1578
1579 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1580 inspected when the symbol search was requested. */
1581
1582 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1583 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1584 extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, gdbarch_iterate_over_objfiles_in_search_order_ftype *iterate_over_objfiles_in_search_order);
1585
1586 /* Ravenscar arch-dependent ops. */
1587
1588 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1589 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1590
1591 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1592
1593 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1594 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1595 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1596
1597 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1598
1599 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1600 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1601 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1602
1603 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1604
1605 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1606 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1607 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1608
1609 /* Return true if there's a program/permanent breakpoint planted in
1610 memory at ADDRESS, return false otherwise. */
1611
1612 typedef bool (gdbarch_program_breakpoint_here_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
1613 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, CORE_ADDR address);
1614 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, gdbarch_program_breakpoint_here_p_ftype *program_breakpoint_here_p);
1615
1616 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1617 Return 0 if *READPTR is already at the end of the buffer.
1618 Return -1 if there is insufficient buffer for a whole entry.
1619 Return 1 if an entry was read into *TYPEP and *VALP. */
1620
1621 extern bool gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1622
1623 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1624 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1625 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1626
1627 /* Print the description of a single auxv entry described by TYPE and VAL
1628 to FILE. */
1629
1630 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1631 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1632 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
1633
1634 /* Find the address range of the current inferior's vsyscall/vDSO, and
1635 write it to *RANGE. If the vsyscall's length can't be determined, a
1636 range with zero length is returned. Returns true if the vsyscall is
1637 found, false otherwise. */
1638
1639 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1640 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1641 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1642
1643 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1644 PROT has GDB_MMAP_PROT_* bitmask format.
1645 Throw an error if it is not possible. Returned address is always valid. */
1646
1647 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1648 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1649 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1650
1651 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1652 Print a warning if it is not possible. */
1653
1654 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
1655 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
1656 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1657
1658 /* Return string (caller has to use xfree for it) with options for GCC
1659 to produce code for this target, typically "-m64", "-m32" or "-m31".
1660 These options are put before CU's DW_AT_producer compilation options so that
1661 they can override it. */
1662
1663 typedef std::string (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1664 extern std::string gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1665 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1666
1667 /* Return a regular expression that matches names used by this
1668 architecture in GNU configury triplets. The result is statically
1669 allocated and must not be freed. The default implementation simply
1670 returns the BFD architecture name, which is correct in nearly every
1671 case. */
1672
1673 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1674 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1675 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1676
1677 /* Return the size in 8-bit bytes of an addressable memory unit on this
1678 architecture. This corresponds to the number of 8-bit bytes associated to
1679 each address in memory. */
1680
1681 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
1682 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
1683 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1684
1685 /* Functions for allowing a target to modify its disassembler options. */
1686
1687 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch);
1688 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit);
1689
1690 extern char ** gdbarch_disassembler_options (struct gdbarch *gdbarch);
1691 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options);
1692
1693 extern const disasm_options_and_args_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch);
1694 extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_and_args_t * valid_disassembler_options);
1695
1696 /* Type alignment override method. Return the architecture specific
1697 alignment required for TYPE. If there is no special handling
1698 required for TYPE then return the value 0, GDB will then apply the
1699 default rules as laid out in gdbtypes.c:type_align. */
1700
1701 typedef ULONGEST (gdbarch_type_align_ftype) (struct gdbarch *gdbarch, struct type *type);
1702 extern ULONGEST gdbarch_type_align (struct gdbarch *gdbarch, struct type *type);
1703 extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align);
1704
1705 /* Return a string containing any flags for the given PC in the given FRAME. */
1706
1707 typedef std::string (gdbarch_get_pc_address_flags_ftype) (frame_info *frame, CORE_ADDR pc);
1708 extern std::string gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, frame_info *frame, CORE_ADDR pc);
1709 extern void set_gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, gdbarch_get_pc_address_flags_ftype *get_pc_address_flags);
1710
1711 /* Read core file mappings */
1712
1713 typedef void (gdbarch_read_core_file_mappings_ftype) (struct gdbarch *gdbarch, struct bfd *cbfd, gdb::function_view<void (ULONGEST count)> pre_loop_cb, gdb::function_view<void (int num, ULONGEST start, ULONGEST end, ULONGEST file_ofs, const char *filename)> loop_cb);
1714 extern void gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, struct bfd *cbfd, gdb::function_view<void (ULONGEST count)> pre_loop_cb, gdb::function_view<void (int num, ULONGEST start, ULONGEST end, ULONGEST file_ofs, const char *filename)> loop_cb);
1715 extern void set_gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, gdbarch_read_core_file_mappings_ftype *read_core_file_mappings);
1716
1717 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1718
1719
1720 /* Mechanism for co-ordinating the selection of a specific
1721 architecture.
1722
1723 GDB targets (*-tdep.c) can register an interest in a specific
1724 architecture. Other GDB components can register a need to maintain
1725 per-architecture data.
1726
1727 The mechanisms below ensures that there is only a loose connection
1728 between the set-architecture command and the various GDB
1729 components. Each component can independently register their need
1730 to maintain architecture specific data with gdbarch.
1731
1732 Pragmatics:
1733
1734 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1735 didn't scale.
1736
1737 The more traditional mega-struct containing architecture specific
1738 data for all the various GDB components was also considered. Since
1739 GDB is built from a variable number of (fairly independent)
1740 components it was determined that the global aproach was not
1741 applicable. */
1742
1743
1744 /* Register a new architectural family with GDB.
1745
1746 Register support for the specified ARCHITECTURE with GDB. When
1747 gdbarch determines that the specified architecture has been
1748 selected, the corresponding INIT function is called.
1749
1750 --
1751
1752 The INIT function takes two parameters: INFO which contains the
1753 information available to gdbarch about the (possibly new)
1754 architecture; ARCHES which is a list of the previously created
1755 ``struct gdbarch'' for this architecture.
1756
1757 The INFO parameter is, as far as possible, be pre-initialized with
1758 information obtained from INFO.ABFD or the global defaults.
1759
1760 The ARCHES parameter is a linked list (sorted most recently used)
1761 of all the previously created architures for this architecture
1762 family. The (possibly NULL) ARCHES->gdbarch can used to access
1763 values from the previously selected architecture for this
1764 architecture family.
1765
1766 The INIT function shall return any of: NULL - indicating that it
1767 doesn't recognize the selected architecture; an existing ``struct
1768 gdbarch'' from the ARCHES list - indicating that the new
1769 architecture is just a synonym for an earlier architecture (see
1770 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1771 - that describes the selected architecture (see gdbarch_alloc()).
1772
1773 The DUMP_TDEP function shall print out all target specific values.
1774 Care should be taken to ensure that the function works in both the
1775 multi-arch and non- multi-arch cases. */
1776
1777 struct gdbarch_list
1778 {
1779 struct gdbarch *gdbarch;
1780 struct gdbarch_list *next;
1781 };
1782
1783 struct gdbarch_info
1784 {
gdbarch_infogdbarch_info1785 gdbarch_info ()
1786 /* Ensure the union is zero-initialized. Relies on the fact that there's
1787 no member larger than TDESC_DATA. */
1788 : tdesc_data ()
1789 {}
1790
1791 const struct bfd_arch_info *bfd_arch_info = nullptr;
1792
1793 enum bfd_endian byte_order = BFD_ENDIAN_UNKNOWN;
1794
1795 enum bfd_endian byte_order_for_code = BFD_ENDIAN_UNKNOWN;
1796
1797 bfd *abfd = nullptr;
1798
1799 union
1800 {
1801 /* Architecture-specific target description data. Numerous targets
1802 need only this, so give them an easy way to hold it. */
1803 struct tdesc_arch_data *tdesc_data;
1804
1805 /* SPU file system ID. This is a single integer, so using the
1806 generic form would only complicate code. Other targets may
1807 reuse this member if suitable. */
1808 int *id;
1809 };
1810
1811 enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
1812
1813 const struct target_desc *target_desc = nullptr;
1814 };
1815
1816 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1817 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1818
1819 /* DEPRECATED - use gdbarch_register() */
1820 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1821
1822 extern void gdbarch_register (enum bfd_architecture architecture,
1823 gdbarch_init_ftype *,
1824 gdbarch_dump_tdep_ftype *);
1825
1826
1827 /* Return a freshly allocated, NULL terminated, array of the valid
1828 architecture names. Since architectures are registered during the
1829 _initialize phase this function only returns useful information
1830 once initialization has been completed. */
1831
1832 extern const char **gdbarch_printable_names (void);
1833
1834
1835 /* Helper function. Search the list of ARCHES for a GDBARCH that
1836 matches the information provided by INFO. */
1837
1838 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1839
1840
1841 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1842 basic initialization using values obtained from the INFO and TDEP
1843 parameters. set_gdbarch_*() functions are called to complete the
1844 initialization of the object. */
1845
1846 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1847
1848
1849 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1850 It is assumed that the caller freeds the ``struct
1851 gdbarch_tdep''. */
1852
1853 extern void gdbarch_free (struct gdbarch *);
1854
1855 /* Get the obstack owned by ARCH. */
1856
1857 extern obstack *gdbarch_obstack (gdbarch *arch);
1858
1859 /* Helper function. Allocate memory from the ``struct gdbarch''
1860 obstack. The memory is freed when the corresponding architecture
1861 is also freed. */
1862
1863 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1864
1865 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1866
1867 /* Duplicate STRING, returning an equivalent string that's allocated on the
1868 obstack associated with GDBARCH. The string is freed when the corresponding
1869 architecture is also freed. */
1870
1871 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1872
1873 /* Helper function. Force an update of the current architecture.
1874
1875 The actual architecture selected is determined by INFO, ``(gdb) set
1876 architecture'' et.al., the existing architecture and BFD's default
1877 architecture. INFO should be initialized to zero and then selected
1878 fields should be updated.
1879
1880 Returns non-zero if the update succeeds. */
1881
1882 extern int gdbarch_update_p (struct gdbarch_info info);
1883
1884
1885 /* Helper function. Find an architecture matching info.
1886
1887 INFO should have relevant fields set, and then finished using
1888 gdbarch_info_fill.
1889
1890 Returns the corresponding architecture, or NULL if no matching
1891 architecture was found. */
1892
1893 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1894
1895
1896 /* Helper function. Set the target gdbarch to "gdbarch". */
1897
1898 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1899
1900
1901 /* Register per-architecture data-pointer.
1902
1903 Reserve space for a per-architecture data-pointer. An identifier
1904 for the reserved data-pointer is returned. That identifer should
1905 be saved in a local static variable.
1906
1907 Memory for the per-architecture data shall be allocated using
1908 gdbarch_obstack_zalloc. That memory will be deleted when the
1909 corresponding architecture object is deleted.
1910
1911 When a previously created architecture is re-selected, the
1912 per-architecture data-pointer for that previous architecture is
1913 restored. INIT() is not re-called.
1914
1915 Multiple registrarants for any architecture are allowed (and
1916 strongly encouraged). */
1917
1918 struct gdbarch_data;
1919
1920 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1921 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1922 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1923 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1924
1925 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1926
1927
1928 /* Set the dynamic target-system-dependent parameters (architecture,
1929 byte-order, ...) using information found in the BFD. */
1930
1931 extern void set_gdbarch_from_file (bfd *);
1932
1933
1934 /* Initialize the current architecture to the "first" one we find on
1935 our list. */
1936
1937 extern void initialize_current_architecture (void);
1938
1939 /* gdbarch trace variable */
1940 extern unsigned int gdbarch_debug;
1941
1942 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1943
1944 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1945
1946 static inline int
gdbarch_num_cooked_regs(gdbarch * arch)1947 gdbarch_num_cooked_regs (gdbarch *arch)
1948 {
1949 return gdbarch_num_regs (arch) + gdbarch_num_pseudo_regs (arch);
1950 }
1951
1952 #endif
1953