1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2015 Free Software Foundation, Inc.
8 This file is part of GDB.
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.
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.
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/>. */
23 /* This file was created with the aid of ``gdbarch.sh''.
25 The Bourne shell script ``gdbarch.sh'' creates the files
26 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
27 against the existing ``gdbarch.[hc]''. Any differences found
30 If editing this file, please also run gdbarch.sh and merge any
31 changes into that script. Conversely, when making sweeping changes
32 to this file, modifying gdbarch.sh and using its output may prove
45 struct minimal_symbol;
49 struct disassemble_info;
52 struct bp_target_info;
56 struct displaced_step_closure;
57 struct core_regset_section;
61 struct stap_parse_info;
62 struct ravenscar_arch_ops;
63 struct elf_internal_linux_prpsinfo;
67 /* The architecture associated with the inferior through the
68 connection to the target.
70 The architecture vector provides some information that is really a
71 property of the inferior, accessed through a particular target:
72 ptrace operations; the layout of certain RSP packets; the solib_ops
73 vector; etc. To differentiate architecture accesses to
74 per-inferior/target properties from
75 per-thread/per-frame/per-objfile properties, accesses to
76 per-inferior/target properties should be made through this
79 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
80 extern struct gdbarch *target_gdbarch (void);
82 /* Callback type for the 'iterate_over_objfiles_in_search_order'
85 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
86 (struct objfile *objfile, void *cb_data);
88 typedef void (iterate_over_regset_sections_cb)
89 (const char *sect_name, int size, const struct regset *regset,
90 const char *human_name, void *cb_data);
93 /* The following are pre-initialized by GDBARCH. */
95 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
96 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
98 extern enum bfd_endian gdbarch_byte_order (struct gdbarch *gdbarch);
99 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
101 extern enum bfd_endian gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
102 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
104 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
105 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
107 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
108 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
111 /* The following are initialized by the target dependent code. */
113 /* The bit byte-order has to do just with numbering of bits in debugging symbols
114 and such. Conceptually, it's quite separate from byte/word byte order. */
116 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
117 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
119 /* Number of bits in a char or unsigned char for the target machine.
120 Just like CHAR_BIT in <limits.h> but describes the target machine.
121 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
123 Number of bits in a short or unsigned short for the target machine. */
125 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
126 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
128 /* Number of bits in an int or unsigned int for the target machine. */
130 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
131 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
133 /* Number of bits in a long or unsigned long for the target machine. */
135 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
136 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
138 /* Number of bits in a long long or unsigned long long for the target
141 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
142 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
144 /* Alignment of a long long or unsigned long long for the target
147 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
148 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
150 /* The ABI default bit-size and format for "half", "float", "double", and
151 "long double". These bit/format pairs should eventually be combined
152 into a single object. For the moment, just initialize them as a pair.
153 Each format describes both the big and little endian layouts (if
156 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
157 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
159 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
160 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
162 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
163 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
165 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
166 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
168 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
169 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
171 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
172 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
174 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
175 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
177 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
178 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
180 /* For most targets, a pointer on the target and its representation as an
181 address in GDB have the same size and "look the same". For such a
182 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
183 / addr_bit will be set from it.
185 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
186 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
187 gdbarch_address_to_pointer as well.
189 ptr_bit is the size of a pointer on the target */
191 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
192 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
194 /* addr_bit is the size of a target address as represented in gdb */
196 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
197 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
199 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
200 info. For .debug_frame FDEs, this is supposed to be the target address
201 size from the associated CU header, and which is equivalent to the
202 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
203 Unfortunately there is no good way to determine this value. Therefore
204 dwarf2_addr_size simply defaults to the target pointer size.
206 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
207 defined using the target's pointer size so far.
209 Note that dwarf2_addr_size only needs to be redefined by a target if the
210 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
211 and if Dwarf versions < 4 need to be supported. */
213 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
214 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
216 /* One if `char' acts like `signed char', zero if `unsigned char'. */
218 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
219 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
221 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
223 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
224 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
225 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
227 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
229 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
230 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
231 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
233 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
234 whole scheme for dealing with "frames" and "frame pointers" needs a
235 serious shakedown. */
237 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
238 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
239 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
241 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
243 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
244 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
245 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
247 /* Read a register into a new struct value. If the register is wholly
248 or partly unavailable, this should call mark_value_bytes_unavailable
249 as appropriate. If this is defined, then pseudo_register_read will
252 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
254 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
255 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
256 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
258 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
260 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
261 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
262 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
264 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
265 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
267 /* This macro gives the number of pseudo-registers that live in the
268 register namespace but do not get fetched or stored on the target.
269 These pseudo-registers may be aliases for other registers,
270 combinations of other registers, or they may be computed by GDB. */
272 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
273 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
275 /* Assemble agent expression bytecode to collect pseudo-register REG.
276 Return -1 if something goes wrong, 0 otherwise. */
278 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
280 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
281 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
282 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
284 /* Assemble agent expression bytecode to push the value of pseudo-register
285 REG on the interpreter stack.
286 Return -1 if something goes wrong, 0 otherwise. */
288 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
290 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
291 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
292 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
294 /* GDB's standard (or well known) register numbers. These can map onto
295 a real register or a pseudo (computed) register or not be defined at
297 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
299 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
300 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
302 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
303 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
305 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
306 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
308 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
309 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
311 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
313 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
314 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
315 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
317 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
319 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
320 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
321 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
323 /* Convert from an sdb register number to an internal gdb register number. */
325 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
326 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
327 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
329 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
331 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
332 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
333 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
335 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
336 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
337 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
339 /* Return the type of a register specified by the architecture. Only
340 the register cache should call this function directly; others should
341 use "register_type". */
343 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
345 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
346 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
347 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
349 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
351 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
352 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
353 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
355 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
356 deprecated_fp_regnum. */
358 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
359 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
361 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
363 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, int struct_return, CORE_ADDR struct_addr);
364 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, int struct_return, CORE_ADDR struct_addr);
365 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
367 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
368 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
370 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
372 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);
373 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);
374 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
376 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
377 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
378 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
380 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
381 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
382 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
384 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
386 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
387 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
388 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
390 /* MAP a GDB RAW register number onto a simulator register number. See
391 also include/...-sim.h. */
393 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
394 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
395 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
397 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
398 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
399 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
401 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
402 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
403 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
405 /* Determine the address where a longjmp will land and save this address
406 in PC. Return nonzero on success.
408 FRAME corresponds to the longjmp frame. */
410 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
412 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
413 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
414 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
416 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
417 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
419 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
420 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
421 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
423 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
424 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);
425 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
427 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
428 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
429 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
431 /* Construct a value representing the contents of register REGNUM in
432 frame FRAME_ID, interpreted as type TYPE. The routine needs to
433 allocate and return a struct value with all value attributes
434 (but not the value contents) filled in. */
436 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
437 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
438 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
440 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
441 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
442 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
444 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
445 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
446 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
448 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
450 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
451 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
452 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
454 /* Return the return-value convention that will be used by FUNCTION
455 to return a value of type VALTYPE. FUNCTION may be NULL in which
456 case the return convention is computed based only on VALTYPE.
458 If READBUF is not NULL, extract the return value and save it in this buffer.
460 If WRITEBUF is not NULL, it contains a return value which will be
461 stored into the appropriate register. This can be used when we want
462 to force the value returned by a function (see the "return" command
465 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
467 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);
468 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);
469 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
471 /* Return true if the return value of function is stored in the first hidden
472 parameter. In theory, this feature should be language-dependent, specified
473 by language and its ABI, such as C++. Unfortunately, compiler may
474 implement it to a target-dependent feature. So that we need such hook here
475 to be aware of this in GDB. */
477 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
478 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
479 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);
481 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
482 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
483 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
485 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
487 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
488 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
489 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
491 /* On some platforms, a single function may provide multiple entry points,
492 e.g. one that is used for function-pointer calls and a different one
493 that is used for direct function calls.
494 In order to ensure that breakpoints set on the function will trigger
495 no matter via which entry point the function is entered, a platform
496 may provide the skip_entrypoint callback. It is called with IP set
497 to the main entry point of a function (as determined by the symbol table),
498 and should return the address of the innermost entry point, where the
499 actual breakpoint needs to be set. Note that skip_entrypoint is used
500 by GDB common code even when debugging optimized code, where skip_prologue
503 extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
505 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
506 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
507 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
509 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
510 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
511 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
513 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
514 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
515 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
517 /* Return the adjusted address and kind to use for Z0/Z1 packets.
518 KIND is usually the memory length of the breakpoint, but may have a
519 different target-specific meaning. */
521 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
522 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
523 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
525 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
527 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
528 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
529 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
531 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
532 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
533 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
535 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
536 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
537 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
539 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
540 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
542 /* A function can be addressed by either it's "pointer" (possibly a
543 descriptor address) or "entry point" (first executable instruction).
544 The method "convert_from_func_ptr_addr" converting the former to the
545 latter. gdbarch_deprecated_function_start_offset is being used to implement
546 a simplified subset of that functionality - the function's address
547 corresponds to the "function pointer" and the function's start
548 corresponds to the "function entry point" - and hence is redundant. */
550 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
551 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
553 /* Return the remote protocol register number associated with this
554 register. Normally the identity mapping. */
556 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
557 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
558 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
560 /* Fetch the target specific address used to represent a load module. */
562 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
564 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
565 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
566 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
568 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
569 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
571 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
573 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
574 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
575 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
577 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
579 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
580 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
581 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
583 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
584 frame-base. Enable frame-base before frame-unwind. */
586 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
588 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
589 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
590 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
592 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
594 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
595 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
596 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
598 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
599 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
600 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
602 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
603 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
605 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
606 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
607 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
609 /* On some machines there are bits in addresses which are not really
610 part of the address, but are used by the kernel, the hardware, etc.
611 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
612 we get a "real" address such as one would find in a symbol table.
613 This is used only for addresses of instructions, and even then I'm
614 not sure it's used in all contexts. It exists to deal with there
615 being a few stray bits in the PC which would mislead us, not as some
616 sort of generic thing to handle alignment or segmentation (it's
617 possible it should be in TARGET_READ_PC instead). */
619 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
620 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
621 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
623 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
624 indicates if the target needs software single step. An ISA method to
627 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
628 breakpoints using the breakpoint system instead of blatting memory directly
631 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
632 target can single step. If not, then implement single step using breakpoints.
634 A return value of 1 means that the software_single_step breakpoints
635 were inserted; 0 means they were not. */
637 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
639 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
640 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
641 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
643 /* Return non-zero if the processor is executing a delay slot and a
644 further single-step is needed before the instruction finishes. */
646 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
648 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
649 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
650 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
652 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
653 disassembler. Perhaps objdump can handle it? */
655 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
656 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
657 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
659 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
660 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
661 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
663 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
664 evaluates non-zero, this is the address where the debugger will place
665 a step-resume breakpoint to get us past the dynamic linker. */
667 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
668 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
669 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
671 /* Some systems also have trampoline code for returning from shared libs. */
673 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
674 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
675 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
677 /* A target might have problems with watchpoints as soon as the stack
678 frame of the current function has been destroyed. This mostly happens
679 as the first action in a funtion's epilogue. in_function_epilogue_p()
680 is defined to return a non-zero value if either the given addr is one
681 instruction after the stack destroying instruction up to the trailing
682 return instruction or if we can figure out that the stack frame has
683 already been invalidated regardless of the value of addr. Targets
684 which don't suffer from that problem could just let this functionality
687 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
688 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
689 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
691 /* Process an ELF symbol in the minimal symbol table in a backend-specific
692 way. Normally this hook is supposed to do nothing, however if required,
693 then this hook can be used to apply tranformations to symbols that are
694 considered special in some way. For example the MIPS backend uses it
695 to interpret `st_other' information to mark compressed code symbols so
696 that they can be treated in the appropriate manner in the processing of
697 the main symbol table and DWARF-2 records. */
699 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
701 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
702 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
703 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
705 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
706 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
707 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
709 /* Process a symbol in the main symbol table in a backend-specific way.
710 Normally this hook is supposed to do nothing, however if required,
711 then this hook can be used to apply tranformations to symbols that
712 are considered special in some way. This is currently used by the
713 MIPS backend to make sure compressed code symbols have the ISA bit
714 set. This in turn is needed for symbol values seen in GDB to match
715 the values used at the runtime by the program itself, for function
716 and label references. */
718 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
719 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
720 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
722 /* Adjust the address retrieved from a DWARF-2 record other than a line
723 entry in a backend-specific way. Normally this hook is supposed to
724 return the address passed unchanged, however if that is incorrect for
725 any reason, then this hook can be used to fix the address up in the
726 required manner. This is currently used by the MIPS backend to make
727 sure addresses in FDE, range records, etc. referring to compressed
728 code have the ISA bit set, matching line information and the symbol
731 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
732 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
733 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
735 /* Adjust the address updated by a line entry in a backend-specific way.
736 Normally this hook is supposed to return the address passed unchanged,
737 however in the case of inconsistencies in these records, this hook can
738 be used to fix them up in the required manner. This is currently used
739 by the MIPS backend to make sure all line addresses in compressed code
740 are presented with the ISA bit set, which is not always the case. This
741 in turn ensures breakpoint addresses are correctly matched against the
744 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
745 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
746 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
748 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
749 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
751 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
752 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
754 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
756 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
757 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
758 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
760 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
762 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
763 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
764 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);
766 /* Return the appropriate type_flags for the supplied address class.
767 This function should return 1 if the address class was recognized and
768 type_flags was set, zero otherwise. */
770 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
772 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
773 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
774 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);
776 /* Is a register in a group */
778 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
779 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
780 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
782 /* Fetch the pointer to the ith function argument. */
784 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
786 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
787 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
788 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
790 /* Iterate over all supported register notes in a core file. For each
791 supported register note section, the iterator must call CB and pass
792 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
793 the supported register note sections based on the current register
794 values. Otherwise it should enumerate all supported register note
797 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
799 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
800 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
801 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
803 /* Create core file notes */
805 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
807 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
808 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
809 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
811 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
812 files. Most Linux architectures use the same prpsinfo32 or
813 prpsinfo64 layouts, and so won't need to provide this hook, as we
814 call the Linux generic routines in bfd to write prpsinfo notes by
817 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch);
819 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
820 extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
821 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo);
823 /* Find core file memory regions */
825 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
827 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
828 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
829 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
831 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
832 core file into buffer READBUF with length LEN. Return the number of bytes read
833 (zero indicates failure).
834 failed, otherwise, return the red length of READBUF. */
836 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
838 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
839 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
840 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
842 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
843 libraries list from core file into buffer READBUF with length LEN.
844 Return the number of bytes read (zero indicates failure). */
846 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
848 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
849 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
850 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
852 /* How the core target converts a PTID from a core file to a string. */
854 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
856 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
857 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
858 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
860 /* BFD target to use when generating a core file. */
862 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
864 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
865 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
867 /* If the elements of C++ vtables are in-place function descriptors rather
868 than normal function pointers (which may point to code or a descriptor),
871 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
872 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
874 /* Set if the least significant bit of the delta is used instead of the least
875 significant bit of the pfn for pointers to virtual member functions. */
877 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
878 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
880 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
882 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
883 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
884 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
886 /* The maximum length of an instruction on this architecture in bytes. */
888 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
890 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
891 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
893 /* Copy the instruction at FROM to TO, and make any adjustments
894 necessary to single-step it at that address.
896 REGS holds the state the thread's registers will have before
897 executing the copied instruction; the PC in REGS will refer to FROM,
898 not the copy at TO. The caller should update it to point at TO later.
900 Return a pointer to data of the architecture's choice to be passed
901 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
902 the instruction's effects have been completely simulated, with the
903 resulting state written back to REGS.
905 For a general explanation of displaced stepping and how GDB uses it,
906 see the comments in infrun.c.
908 The TO area is only guaranteed to have space for
909 gdbarch_max_insn_length (arch) bytes, so this function must not
910 write more bytes than that to that area.
912 If you do not provide this function, GDB assumes that the
913 architecture does not support displaced stepping.
915 If your architecture doesn't need to adjust instructions before
916 single-stepping them, consider using simple_displaced_step_copy_insn
919 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
921 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
922 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
923 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
925 /* Return true if GDB should use hardware single-stepping to execute
926 the displaced instruction identified by CLOSURE. If false,
927 GDB will simply restart execution at the displaced instruction
928 location, and it is up to the target to ensure GDB will receive
929 control again (e.g. by placing a software breakpoint instruction
930 into the displaced instruction buffer).
932 The default implementation returns false on all targets that
933 provide a gdbarch_software_single_step routine, and true otherwise. */
935 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
936 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
937 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
939 /* Fix up the state resulting from successfully single-stepping a
940 displaced instruction, to give the result we would have gotten from
941 stepping the instruction in its original location.
943 REGS is the register state resulting from single-stepping the
944 displaced instruction.
946 CLOSURE is the result from the matching call to
947 gdbarch_displaced_step_copy_insn.
949 If you provide gdbarch_displaced_step_copy_insn.but not this
950 function, then GDB assumes that no fixup is needed after
951 single-stepping the instruction.
953 For a general explanation of displaced stepping and how GDB uses it,
954 see the comments in infrun.c. */
956 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
958 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
959 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
960 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
962 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
964 If you provide gdbarch_displaced_step_copy_insn, you must provide
965 this function as well.
967 If your architecture uses closures that don't need to be freed, then
968 you can use simple_displaced_step_free_closure here.
970 For a general explanation of displaced stepping and how GDB uses it,
971 see the comments in infrun.c. */
973 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
974 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
975 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
977 /* Return the address of an appropriate place to put displaced
978 instructions while we step over them. There need only be one such
979 place, since we're only stepping one thread over a breakpoint at a
982 For a general explanation of displaced stepping and how GDB uses it,
983 see the comments in infrun.c. */
985 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
986 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
987 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
989 /* Relocate an instruction to execute at a different address. OLDLOC
990 is the address in the inferior memory where the instruction to
991 relocate is currently at. On input, TO points to the destination
992 where we want the instruction to be copied (and possibly adjusted)
993 to. On output, it points to one past the end of the resulting
994 instruction(s). The effect of executing the instruction at TO shall
995 be the same as if executing it at FROM. For example, call
996 instructions that implicitly push the return address on the stack
997 should be adjusted to return to the instruction after OLDLOC;
998 relative branches, and other PC-relative instructions need the
999 offset adjusted; etc. */
1001 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1003 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1004 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1005 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1007 /* Refresh overlay mapped state for section OSECT. */
1009 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1011 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1012 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1013 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1015 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1017 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1018 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1019 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1021 /* Handle special encoding of static variables in stabs debug info. */
1023 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
1025 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
1026 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
1027 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
1029 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1031 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1032 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1034 /* Parse the instruction at ADDR storing in the record execution log
1035 the registers REGCACHE and memory ranges that will be affected when
1036 the instruction executes, along with their current values.
1037 Return -1 if something goes wrong, 0 otherwise. */
1039 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
1041 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1042 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1043 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1045 /* Save process state after a signal.
1046 Return -1 if something goes wrong, 0 otherwise. */
1048 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1050 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1051 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1052 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1054 /* Signal translation: translate inferior's signal (target's) number
1055 into GDB's representation. The implementation of this method must
1056 be host independent. IOW, don't rely on symbols of the NAT_FILE
1057 header (the nm-*.h files), the host <signal.h> header, or similar
1058 headers. This is mainly used when cross-debugging core files ---
1059 "Live" targets hide the translation behind the target interface
1060 (target_wait, target_resume, etc.). */
1062 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1064 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1065 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1066 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1068 /* Signal translation: translate the GDB's internal signal number into
1069 the inferior's signal (target's) representation. The implementation
1070 of this method must be host independent. IOW, don't rely on symbols
1071 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1072 header, or similar headers.
1073 Return the target signal number if found, or -1 if the GDB internal
1074 signal number is invalid. */
1076 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1078 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1079 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1080 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1082 /* Extra signal info inspection.
1084 Return a type suitable to inspect extra signal information. */
1086 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1088 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1089 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1090 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1092 /* Record architecture-specific information from the symbol table. */
1094 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1096 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1097 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1098 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1100 /* Function for the 'catch syscall' feature.
1101 Get architecture-specific system calls information from registers. */
1103 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1105 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1106 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
1107 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1109 /* The filename of the XML syscall for this architecture. */
1111 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1112 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1114 /* Information about system calls from this architecture */
1116 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1117 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1119 /* SystemTap related fields and functions.
1120 A NULL-terminated array of prefixes used to mark an integer constant
1121 on the architecture's assembly.
1122 For example, on x86 integer constants are written as:
1124 $10 ;; integer constant 10
1126 in this case, this prefix would be the character `$'. */
1128 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1129 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1131 /* A NULL-terminated array of suffixes used to mark an integer constant
1132 on the architecture's assembly. */
1134 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1135 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1137 /* A NULL-terminated array of prefixes used to mark a register name on
1138 the architecture's assembly.
1139 For example, on x86 the register name is written as:
1141 %eax ;; register eax
1143 in this case, this prefix would be the character `%'. */
1145 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1146 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1148 /* A NULL-terminated array of suffixes used to mark a register name on
1149 the architecture's assembly. */
1151 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1152 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1154 /* A NULL-terminated array of prefixes used to mark a register
1155 indirection on the architecture's assembly.
1156 For example, on x86 the register indirection is written as:
1158 (%eax) ;; indirecting eax
1160 in this case, this prefix would be the charater `('.
1162 Please note that we use the indirection prefix also for register
1163 displacement, e.g., `4(%eax)' on x86. */
1165 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1166 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1168 /* A NULL-terminated array of suffixes used to mark a register
1169 indirection on the architecture's assembly.
1170 For example, on x86 the register indirection is written as:
1172 (%eax) ;; indirecting eax
1174 in this case, this prefix would be the charater `)'.
1176 Please note that we use the indirection suffix also for register
1177 displacement, e.g., `4(%eax)' on x86. */
1179 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1180 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1182 /* Prefix(es) used to name a register using GDB's nomenclature.
1184 For example, on PPC a register is represented by a number in the assembly
1185 language (e.g., `10' is the 10th general-purpose register). However,
1186 inside GDB this same register has an `r' appended to its name, so the 10th
1187 register would be represented as `r10' internally. */
1189 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1190 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1192 /* Suffix used to name a register using GDB's nomenclature. */
1194 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1195 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1197 /* Check if S is a single operand.
1199 Single operands can be:
1200 - Literal integers, e.g. `$10' on x86
1201 - Register access, e.g. `%eax' on x86
1202 - Register indirection, e.g. `(%eax)' on x86
1203 - Register displacement, e.g. `4(%eax)' on x86
1205 This function should check for these patterns on the string
1206 and return 1 if some were found, or zero otherwise. Please try to match
1207 as much info as you can from the string, i.e., if you have to match
1208 something like `(%', do not match just the `('. */
1210 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1212 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1213 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1214 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1216 /* Function used to handle a "special case" in the parser.
1218 A "special case" is considered to be an unknown token, i.e., a token
1219 that the parser does not know how to parse. A good example of special
1220 case would be ARM's register displacement syntax:
1222 [R0, #4] ;; displacing R0 by 4
1224 Since the parser assumes that a register displacement is of the form:
1226 <number> <indirection_prefix> <register_name> <indirection_suffix>
1228 it means that it will not be able to recognize and parse this odd syntax.
1229 Therefore, we should add a special case function that will handle this token.
1231 This function should generate the proper expression form of the expression
1232 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1233 and so on). It should also return 1 if the parsing was successful, or zero
1234 if the token was not recognized as a special token (in this case, returning
1235 zero means that the special parser is deferring the parsing to the generic
1236 parser), and should advance the buffer pointer (p->arg). */
1238 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1240 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1241 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1242 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1244 /* True if the list of shared libraries is one and only for all
1245 processes, as opposed to a list of shared libraries per inferior.
1246 This usually means that all processes, although may or may not share
1247 an address space, will see the same set of symbols at the same
1250 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1251 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1253 /* On some targets, even though each inferior has its own private
1254 address space, the debug interface takes care of making breakpoints
1255 visible to all address spaces automatically. For such cases,
1256 this property should be set to true. */
1258 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1259 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1261 /* True if inferiors share an address space (e.g., uClinux). */
1263 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1264 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1265 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1267 /* True if a fast tracepoint can be set at an address. */
1269 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1270 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1271 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1273 /* Return the "auto" target charset. */
1275 typedef const char * (gdbarch_auto_charset_ftype) (void);
1276 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1277 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1279 /* Return the "auto" target wide charset. */
1281 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1282 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1283 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1285 /* If non-empty, this is a file extension that will be opened in place
1286 of the file extension reported by the shared library list.
1288 This is most useful for toolchains that use a post-linker tool,
1289 where the names of the files run on the target differ in extension
1290 compared to the names of the files GDB should load for debug info. */
1292 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1293 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1295 /* If true, the target OS has DOS-based file system semantics. That
1296 is, absolute paths include a drive name, and the backslash is
1297 considered a directory separator. */
1299 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1300 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1302 /* Generate bytecodes to collect the return address in a frame.
1303 Since the bytecodes run on the target, possibly with GDB not even
1304 connected, the full unwinding machinery is not available, and
1305 typically this function will issue bytecodes for one or more likely
1306 places that the return address may be found. */
1308 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1309 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1310 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1312 /* Implement the "info proc" command. */
1314 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1316 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1317 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1318 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1320 /* Implement the "info proc" command for core files. Noe that there
1321 are two "info_proc"-like methods on gdbarch -- one for core files,
1322 one for live targets. */
1324 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1326 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1327 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1328 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1330 /* Iterate over all objfiles in the order that makes the most sense
1331 for the architecture to make global symbol searches.
1333 CB is a callback function where OBJFILE is the objfile to be searched,
1334 and CB_DATA a pointer to user-defined data (the same data that is passed
1335 when calling this gdbarch method). The iteration stops if this function
1338 CB_DATA is a pointer to some user-defined data to be passed to
1341 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1342 inspected when the symbol search was requested. */
1344 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);
1345 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);
1346 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);
1348 /* Ravenscar arch-dependent ops. */
1350 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1351 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1353 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1355 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1356 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1357 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1359 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1361 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1362 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1363 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1365 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1367 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1368 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1369 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1371 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1372 Return 0 if *READPTR is already at the end of the buffer.
1373 Return -1 if there is insufficient buffer for a whole entry.
1374 Return 1 if an entry was read into *TYPEP and *VALP. */
1376 extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1378 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1379 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1380 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1382 /* Find the address range of the current inferior's vsyscall/vDSO, and
1383 write it to *RANGE. If the vsyscall's length can't be determined, a
1384 range with zero length is returned. Returns true if the vsyscall is
1385 found, false otherwise. */
1387 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1388 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1389 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1391 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1392 PROT has GDB_MMAP_PROT_* bitmask format.
1393 Throw an error if it is not possible. Returned address is always valid. */
1395 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1396 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1397 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1399 /* Return string (caller has to use xfree for it) with options for GCC
1400 to produce code for this target, typically "-m64", "-m32" or "-m31".
1401 These options are put before CU's DW_AT_producer compilation options so that
1402 they can override it. Method may also return NULL. */
1404 typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1405 extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1406 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1408 /* Return a regular expression that matches names used by this
1409 architecture in GNU configury triplets. The result is statically
1410 allocated and must not be freed. The default implementation simply
1411 returns the BFD architecture name, which is correct in nearly every
1414 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1415 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1416 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1418 /* Definition for an unknown syscall, used basically in error-cases. */
1419 #define UNKNOWN_SYSCALL (-1)
1421 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1424 /* Mechanism for co-ordinating the selection of a specific
1427 GDB targets (*-tdep.c) can register an interest in a specific
1428 architecture. Other GDB components can register a need to maintain
1429 per-architecture data.
1431 The mechanisms below ensures that there is only a loose connection
1432 between the set-architecture command and the various GDB
1433 components. Each component can independently register their need
1434 to maintain architecture specific data with gdbarch.
1438 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1441 The more traditional mega-struct containing architecture specific
1442 data for all the various GDB components was also considered. Since
1443 GDB is built from a variable number of (fairly independent)
1444 components it was determined that the global aproach was not
1448 /* Register a new architectural family with GDB.
1450 Register support for the specified ARCHITECTURE with GDB. When
1451 gdbarch determines that the specified architecture has been
1452 selected, the corresponding INIT function is called.
1456 The INIT function takes two parameters: INFO which contains the
1457 information available to gdbarch about the (possibly new)
1458 architecture; ARCHES which is a list of the previously created
1459 ``struct gdbarch'' for this architecture.
1461 The INFO parameter is, as far as possible, be pre-initialized with
1462 information obtained from INFO.ABFD or the global defaults.
1464 The ARCHES parameter is a linked list (sorted most recently used)
1465 of all the previously created architures for this architecture
1466 family. The (possibly NULL) ARCHES->gdbarch can used to access
1467 values from the previously selected architecture for this
1468 architecture family.
1470 The INIT function shall return any of: NULL - indicating that it
1471 doesn't recognize the selected architecture; an existing ``struct
1472 gdbarch'' from the ARCHES list - indicating that the new
1473 architecture is just a synonym for an earlier architecture (see
1474 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1475 - that describes the selected architecture (see gdbarch_alloc()).
1477 The DUMP_TDEP function shall print out all target specific values.
1478 Care should be taken to ensure that the function works in both the
1479 multi-arch and non- multi-arch cases. */
1483 struct gdbarch *gdbarch;
1484 struct gdbarch_list *next;
1489 /* Use default: NULL (ZERO). */
1490 const struct bfd_arch_info *bfd_arch_info;
1492 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1493 enum bfd_endian byte_order;
1495 enum bfd_endian byte_order_for_code;
1497 /* Use default: NULL (ZERO). */
1500 /* Use default: NULL (ZERO). */
1501 struct gdbarch_tdep_info *tdep_info;
1503 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1504 enum gdb_osabi osabi;
1506 /* Use default: NULL (ZERO). */
1507 const struct target_desc *target_desc;
1510 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1511 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1513 /* DEPRECATED - use gdbarch_register() */
1514 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1516 extern void gdbarch_register (enum bfd_architecture architecture,
1517 gdbarch_init_ftype *,
1518 gdbarch_dump_tdep_ftype *);
1521 /* Return a freshly allocated, NULL terminated, array of the valid
1522 architecture names. Since architectures are registered during the
1523 _initialize phase this function only returns useful information
1524 once initialization has been completed. */
1526 extern const char **gdbarch_printable_names (void);
1529 /* Helper function. Search the list of ARCHES for a GDBARCH that
1530 matches the information provided by INFO. */
1532 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1535 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1536 basic initialization using values obtained from the INFO and TDEP
1537 parameters. set_gdbarch_*() functions are called to complete the
1538 initialization of the object. */
1540 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1543 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1544 It is assumed that the caller freeds the ``struct
1547 extern void gdbarch_free (struct gdbarch *);
1550 /* Helper function. Allocate memory from the ``struct gdbarch''
1551 obstack. The memory is freed when the corresponding architecture
1554 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1555 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1556 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1559 /* Helper function. Force an update of the current architecture.
1561 The actual architecture selected is determined by INFO, ``(gdb) set
1562 architecture'' et.al., the existing architecture and BFD's default
1563 architecture. INFO should be initialized to zero and then selected
1564 fields should be updated.
1566 Returns non-zero if the update succeeds. */
1568 extern int gdbarch_update_p (struct gdbarch_info info);
1571 /* Helper function. Find an architecture matching info.
1573 INFO should be initialized using gdbarch_info_init, relevant fields
1574 set, and then finished using gdbarch_info_fill.
1576 Returns the corresponding architecture, or NULL if no matching
1577 architecture was found. */
1579 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1582 /* Helper function. Set the target gdbarch to "gdbarch". */
1584 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1587 /* Register per-architecture data-pointer.
1589 Reserve space for a per-architecture data-pointer. An identifier
1590 for the reserved data-pointer is returned. That identifer should
1591 be saved in a local static variable.
1593 Memory for the per-architecture data shall be allocated using
1594 gdbarch_obstack_zalloc. That memory will be deleted when the
1595 corresponding architecture object is deleted.
1597 When a previously created architecture is re-selected, the
1598 per-architecture data-pointer for that previous architecture is
1599 restored. INIT() is not re-called.
1601 Multiple registrarants for any architecture are allowed (and
1602 strongly encouraged). */
1604 struct gdbarch_data;
1606 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1607 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1608 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1609 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1610 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1611 struct gdbarch_data *data,
1614 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1617 /* Set the dynamic target-system-dependent parameters (architecture,
1618 byte-order, ...) using information found in the BFD. */
1620 extern void set_gdbarch_from_file (bfd *);
1623 /* Initialize the current architecture to the "first" one we find on
1626 extern void initialize_current_architecture (void);
1628 /* gdbarch trace variable */
1629 extern unsigned int gdbarch_debug;
1631 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);