1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2018 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
47 struct minimal_symbol;
51 struct disassemble_info;
54 struct bp_target_info;
57 struct displaced_step_closure;
61 struct stap_parse_info;
63 struct ravenscar_arch_ops;
71 /* The architecture associated with the inferior through the
72 connection to the target.
74 The architecture vector provides some information that is really a
75 property of the inferior, accessed through a particular target:
76 ptrace operations; the layout of certain RSP packets; the solib_ops
77 vector; etc. To differentiate architecture accesses to
78 per-inferior/target properties from
79 per-thread/per-frame/per-objfile properties, accesses to
80 per-inferior/target properties should be made through this
83 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
84 extern struct gdbarch *target_gdbarch (void);
86 /* Callback type for the 'iterate_over_objfiles_in_search_order'
89 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
90 (struct objfile *objfile, void *cb_data);
92 /* Callback type for regset section iterators. The callback usually
93 invokes the REGSET's supply or collect method, to which it must
94 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
95 section name, and HUMAN_NAME is used for diagnostic messages.
96 CB_DATA should have been passed unchanged through the iterator. */
98 typedef void (iterate_over_regset_sections_cb)
99 (const char *sect_name, int size, const struct regset *regset,
100 const char *human_name, void *cb_data);
103 /* The following are pre-initialized by GDBARCH. */
105 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
106 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
108 extern enum bfd_endian gdbarch_byte_order (struct gdbarch *gdbarch);
109 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
111 extern enum bfd_endian gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
112 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
114 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
115 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
117 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
118 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
121 /* The following are initialized by the target dependent code. */
123 /* The bit byte-order has to do just with numbering of bits in debugging symbols
124 and such. Conceptually, it's quite separate from byte/word byte order. */
126 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
127 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
129 /* Number of bits in a short or unsigned short for the target machine. */
131 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
132 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
134 /* Number of bits in an int or unsigned int for the target machine. */
136 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
137 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
139 /* Number of bits in a long or unsigned long for the target machine. */
141 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
142 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
144 /* Number of bits in a long long or unsigned long long for the target
147 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
148 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
150 /* Alignment of a long long or unsigned long long for the target
153 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
154 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
156 /* The ABI default bit-size and format for "half", "float", "double", and
157 "long double". These bit/format pairs should eventually be combined
158 into a single object. For the moment, just initialize them as a pair.
159 Each format describes both the big and little endian layouts (if
162 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
163 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
165 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
166 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
168 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
169 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
171 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
172 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
174 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
175 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
177 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
178 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
180 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
181 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
183 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
184 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
186 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
187 starting with C++11. */
189 extern int gdbarch_wchar_bit (struct gdbarch *gdbarch);
190 extern void set_gdbarch_wchar_bit (struct gdbarch *gdbarch, int wchar_bit);
192 /* One if `wchar_t' is signed, zero if unsigned. */
194 extern int gdbarch_wchar_signed (struct gdbarch *gdbarch);
195 extern void set_gdbarch_wchar_signed (struct gdbarch *gdbarch, int wchar_signed);
197 /* Returns the floating-point format to be used for values of length LENGTH.
198 NAME, if non-NULL, is the type name, which may be used to distinguish
199 different target formats of the same length. */
201 typedef const struct floatformat ** (gdbarch_floatformat_for_type_ftype) (struct gdbarch *gdbarch, const char *name, int length);
202 extern const struct floatformat ** gdbarch_floatformat_for_type (struct gdbarch *gdbarch, const char *name, int length);
203 extern void set_gdbarch_floatformat_for_type (struct gdbarch *gdbarch, gdbarch_floatformat_for_type_ftype *floatformat_for_type);
205 /* For most targets, a pointer on the target and its representation as an
206 address in GDB have the same size and "look the same". For such a
207 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
208 / addr_bit will be set from it.
210 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
211 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
212 gdbarch_address_to_pointer as well.
214 ptr_bit is the size of a pointer on the target */
216 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
217 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
219 /* addr_bit is the size of a target address as represented in gdb */
221 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
222 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
224 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
225 info. For .debug_frame FDEs, this is supposed to be the target address
226 size from the associated CU header, and which is equivalent to the
227 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
228 Unfortunately there is no good way to determine this value. Therefore
229 dwarf2_addr_size simply defaults to the target pointer size.
231 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
232 defined using the target's pointer size so far.
234 Note that dwarf2_addr_size only needs to be redefined by a target if the
235 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
236 and if Dwarf versions < 4 need to be supported. */
238 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
239 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
241 /* One if `char' acts like `signed char', zero if `unsigned char'. */
243 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
244 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
246 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
248 typedef CORE_ADDR (gdbarch_read_pc_ftype) (readable_regcache *regcache);
249 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, readable_regcache *regcache);
250 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
252 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
254 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
255 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
256 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
258 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
259 whole scheme for dealing with "frames" and "frame pointers" needs a
260 serious shakedown. */
262 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
263 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
264 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
266 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
268 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf);
269 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf);
270 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
272 /* Read a register into a new struct value. If the register is wholly
273 or partly unavailable, this should call mark_value_bytes_unavailable
274 as appropriate. If this is defined, then pseudo_register_read will
277 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
279 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum);
280 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum);
281 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
283 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
285 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
286 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
287 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
289 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
290 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
292 /* This macro gives the number of pseudo-registers that live in the
293 register namespace but do not get fetched or stored on the target.
294 These pseudo-registers may be aliases for other registers,
295 combinations of other registers, or they may be computed by GDB. */
297 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
298 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
300 /* Assemble agent expression bytecode to collect pseudo-register REG.
301 Return -1 if something goes wrong, 0 otherwise. */
303 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
305 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
306 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
307 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
309 /* Assemble agent expression bytecode to push the value of pseudo-register
310 REG on the interpreter stack.
311 Return -1 if something goes wrong, 0 otherwise. */
313 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
315 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
316 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
317 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
319 /* Some targets/architectures can do extra processing/display of
320 segmentation faults. E.g., Intel MPX boundary faults.
321 Call the architecture dependent function to handle the fault.
322 UIOUT is the output stream where the handler will place information. */
324 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch);
326 typedef void (gdbarch_handle_segmentation_fault_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout);
327 extern void gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout);
328 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, gdbarch_handle_segmentation_fault_ftype *handle_segmentation_fault);
330 /* GDB's standard (or well known) register numbers. These can map onto
331 a real register or a pseudo (computed) register or not be defined at
333 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
335 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
336 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
338 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
339 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
341 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
342 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
344 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
345 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
347 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
349 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
350 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
351 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
353 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
355 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
356 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
357 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
359 /* Convert from an sdb register number to an internal gdb register number. */
361 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
362 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
363 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
365 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
366 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
368 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
369 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
370 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
372 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
373 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
374 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
376 /* Return the type of a register specified by the architecture. Only
377 the register cache should call this function directly; others should
378 use "register_type". */
380 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
382 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
383 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
384 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
386 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
388 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
389 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
390 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
392 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
393 deprecated_fp_regnum. */
395 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
396 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
398 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
400 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);
401 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);
402 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
404 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
405 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
407 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
409 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);
410 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);
411 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
413 /* Return true if the code of FRAME is writable. */
415 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
416 extern int gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, struct frame_info *frame);
417 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable);
419 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
420 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
421 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
423 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
424 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
425 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
427 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
429 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
430 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
431 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
433 /* MAP a GDB RAW register number onto a simulator register number. See
434 also include/...-sim.h. */
436 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
437 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
438 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
440 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
441 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
442 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
444 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
445 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
446 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
448 /* Determine the address where a longjmp will land and save this address
449 in PC. Return nonzero on success.
451 FRAME corresponds to the longjmp frame. */
453 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
455 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
456 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
457 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
459 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
460 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
462 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
463 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
464 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
466 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
467 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);
468 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
470 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
471 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
472 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
474 /* Construct a value representing the contents of register REGNUM in
475 frame FRAME_ID, interpreted as type TYPE. The routine needs to
476 allocate and return a struct value with all value attributes
477 (but not the value contents) filled in. */
479 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
480 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
481 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
483 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
484 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
485 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
487 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
488 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
489 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
491 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
493 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
494 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
495 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
497 /* Return the return-value convention that will be used by FUNCTION
498 to return a value of type VALTYPE. FUNCTION may be NULL in which
499 case the return convention is computed based only on VALTYPE.
501 If READBUF is not NULL, extract the return value and save it in this buffer.
503 If WRITEBUF is not NULL, it contains a return value which will be
504 stored into the appropriate register. This can be used when we want
505 to force the value returned by a function (see the "return" command
508 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
510 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);
511 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);
512 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
514 /* Return true if the return value of function is stored in the first hidden
515 parameter. In theory, this feature should be language-dependent, specified
516 by language and its ABI, such as C++. Unfortunately, compiler may
517 implement it to a target-dependent feature. So that we need such hook here
518 to be aware of this in GDB. */
520 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
521 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
522 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);
524 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
525 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
526 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
528 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
530 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
531 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
532 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
534 /* On some platforms, a single function may provide multiple entry points,
535 e.g. one that is used for function-pointer calls and a different one
536 that is used for direct function calls.
537 In order to ensure that breakpoints set on the function will trigger
538 no matter via which entry point the function is entered, a platform
539 may provide the skip_entrypoint callback. It is called with IP set
540 to the main entry point of a function (as determined by the symbol table),
541 and should return the address of the innermost entry point, where the
542 actual breakpoint needs to be set. Note that skip_entrypoint is used
543 by GDB common code even when debugging optimized code, where skip_prologue
546 extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
548 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
549 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
550 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
552 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
553 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
554 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
556 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
557 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
558 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
560 /* Return the breakpoint kind for this target based on *PCPTR. */
562 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
563 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
564 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc);
566 /* Return the software breakpoint from KIND. KIND can have target
567 specific meaning like the Z0 kind parameter.
568 SIZE is set to the software breakpoint's length in memory. */
570 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size);
571 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size);
572 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind);
574 /* Return the breakpoint kind for this target based on the current
575 processor state (e.g. the current instruction mode on ARM) and the
576 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
578 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
579 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
580 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state);
582 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
584 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
585 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
586 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
588 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
589 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
590 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
592 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
593 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
594 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
596 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
597 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
599 /* A function can be addressed by either it's "pointer" (possibly a
600 descriptor address) or "entry point" (first executable instruction).
601 The method "convert_from_func_ptr_addr" converting the former to the
602 latter. gdbarch_deprecated_function_start_offset is being used to implement
603 a simplified subset of that functionality - the function's address
604 corresponds to the "function pointer" and the function's start
605 corresponds to the "function entry point" - and hence is redundant. */
607 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
608 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
610 /* Return the remote protocol register number associated with this
611 register. Normally the identity mapping. */
613 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
614 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
615 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
617 /* Fetch the target specific address used to represent a load module. */
619 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
621 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
622 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
623 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
625 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
626 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
628 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
630 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
631 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
632 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
634 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
636 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
637 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
638 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
640 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
641 frame-base. Enable frame-base before frame-unwind. */
643 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
645 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
646 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
647 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
649 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
651 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
652 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
653 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
655 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
656 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
657 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
659 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
660 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
662 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
663 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
664 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
666 /* On some machines there are bits in addresses which are not really
667 part of the address, but are used by the kernel, the hardware, etc.
668 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
669 we get a "real" address such as one would find in a symbol table.
670 This is used only for addresses of instructions, and even then I'm
671 not sure it's used in all contexts. It exists to deal with there
672 being a few stray bits in the PC which would mislead us, not as some
673 sort of generic thing to handle alignment or segmentation (it's
674 possible it should be in TARGET_READ_PC instead). */
676 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
677 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
678 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
680 /* On some machines, not all bits of an address word are significant.
681 For example, on AArch64, the top bits of an address known as the "tag"
682 are ignored by the kernel, the hardware, etc. and can be regarded as
683 additional data associated with the address. */
685 extern int gdbarch_significant_addr_bit (struct gdbarch *gdbarch);
686 extern void set_gdbarch_significant_addr_bit (struct gdbarch *gdbarch, int significant_addr_bit);
688 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
689 indicates if the target needs software single step. An ISA method to
692 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
693 target can single step. If not, then implement single step using breakpoints.
695 Return a vector of addresses on which the software single step
696 breakpoints should be inserted. NULL means software single step is
698 Multiple breakpoints may be inserted for some instructions such as
699 conditional branch. However, each implementation must always evaluate
700 the condition and only put the breakpoint at the branch destination if
701 the condition is true, so that we ensure forward progress when stepping
702 past a conditional branch to self. */
704 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
706 typedef std::vector<CORE_ADDR> (gdbarch_software_single_step_ftype) (struct regcache *regcache);
707 extern std::vector<CORE_ADDR> gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
708 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
710 /* Return non-zero if the processor is executing a delay slot and a
711 further single-step is needed before the instruction finishes. */
713 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
715 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
716 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
717 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
719 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
720 disassembler. Perhaps objdump can handle it? */
722 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
723 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
724 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
726 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
727 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
728 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
730 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
731 evaluates non-zero, this is the address where the debugger will place
732 a step-resume breakpoint to get us past the dynamic linker. */
734 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
735 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
736 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
738 /* Some systems also have trampoline code for returning from shared libs. */
740 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
741 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
742 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
744 /* A target might have problems with watchpoints as soon as the stack
745 frame of the current function has been destroyed. This mostly happens
746 as the first action in a function's epilogue. stack_frame_destroyed_p()
747 is defined to return a non-zero value if either the given addr is one
748 instruction after the stack destroying instruction up to the trailing
749 return instruction or if we can figure out that the stack frame has
750 already been invalidated regardless of the value of addr. Targets
751 which don't suffer from that problem could just let this functionality
754 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
755 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
756 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
758 /* Process an ELF symbol in the minimal symbol table in a backend-specific
759 way. Normally this hook is supposed to do nothing, however if required,
760 then this hook can be used to apply tranformations to symbols that are
761 considered special in some way. For example the MIPS backend uses it
762 to interpret `st_other' information to mark compressed code symbols so
763 that they can be treated in the appropriate manner in the processing of
764 the main symbol table and DWARF-2 records. */
766 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
768 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
769 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
770 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
772 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
773 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
774 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
776 /* Process a symbol in the main symbol table in a backend-specific way.
777 Normally this hook is supposed to do nothing, however if required,
778 then this hook can be used to apply tranformations to symbols that
779 are considered special in some way. This is currently used by the
780 MIPS backend to make sure compressed code symbols have the ISA bit
781 set. This in turn is needed for symbol values seen in GDB to match
782 the values used at the runtime by the program itself, for function
783 and label references. */
785 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
786 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
787 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
789 /* Adjust the address retrieved from a DWARF-2 record other than a line
790 entry in a backend-specific way. Normally this hook is supposed to
791 return the address passed unchanged, however if that is incorrect for
792 any reason, then this hook can be used to fix the address up in the
793 required manner. This is currently used by the MIPS backend to make
794 sure addresses in FDE, range records, etc. referring to compressed
795 code have the ISA bit set, matching line information and the symbol
798 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
799 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
800 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
802 /* Adjust the address updated by a line entry in a backend-specific way.
803 Normally this hook is supposed to return the address passed unchanged,
804 however in the case of inconsistencies in these records, this hook can
805 be used to fix them up in the required manner. This is currently used
806 by the MIPS backend to make sure all line addresses in compressed code
807 are presented with the ISA bit set, which is not always the case. This
808 in turn ensures breakpoint addresses are correctly matched against the
811 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
812 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
813 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
815 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
816 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
818 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
819 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
821 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
823 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
824 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
825 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
827 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
829 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
830 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
831 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);
833 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
834 FS are passed from the generic execute_cfa_program function. */
836 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype) (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
837 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
838 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op);
840 /* Return the appropriate type_flags for the supplied address class.
841 This function should return 1 if the address class was recognized and
842 type_flags was set, zero otherwise. */
844 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
846 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
847 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
848 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);
850 /* Is a register in a group */
852 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
853 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
854 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
856 /* Fetch the pointer to the ith function argument. */
858 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
860 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
861 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
862 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
864 /* Iterate over all supported register notes in a core file. For each
865 supported register note section, the iterator must call CB and pass
866 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
867 the supported register note sections based on the current register
868 values. Otherwise it should enumerate all supported register note
871 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
873 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
874 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
875 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
877 /* Create core file notes */
879 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
881 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
882 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
883 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
885 /* Find core file memory regions */
887 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
889 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
890 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
891 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
893 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
894 core file into buffer READBUF with length LEN. Return the number of bytes read
895 (zero indicates failure).
896 failed, otherwise, return the red length of READBUF. */
898 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
900 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
901 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
902 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
904 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
905 libraries list from core file into buffer READBUF with length LEN.
906 Return the number of bytes read (zero indicates failure). */
908 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
910 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
911 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
912 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
914 /* How the core target converts a PTID from a core file to a string. */
916 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
918 typedef const char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
919 extern const char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
920 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
922 /* How the core target extracts the name of a thread from a core file. */
924 extern int gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
926 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
927 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
928 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
930 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
931 from core file into buffer READBUF with length LEN. Return the number
932 of bytes read (zero indicates EOF, a negative value indicates failure). */
934 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch);
936 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
937 extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
938 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo);
940 /* BFD target to use when generating a core file. */
942 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
944 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
945 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
947 /* If the elements of C++ vtables are in-place function descriptors rather
948 than normal function pointers (which may point to code or a descriptor),
951 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
952 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
954 /* Set if the least significant bit of the delta is used instead of the least
955 significant bit of the pfn for pointers to virtual member functions. */
957 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
958 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
960 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
962 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
963 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
964 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
966 /* The maximum length of an instruction on this architecture in bytes. */
968 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
970 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
971 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
973 /* Copy the instruction at FROM to TO, and make any adjustments
974 necessary to single-step it at that address.
976 REGS holds the state the thread's registers will have before
977 executing the copied instruction; the PC in REGS will refer to FROM,
978 not the copy at TO. The caller should update it to point at TO later.
980 Return a pointer to data of the architecture's choice to be passed
981 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
982 the instruction's effects have been completely simulated, with the
983 resulting state written back to REGS.
985 For a general explanation of displaced stepping and how GDB uses it,
986 see the comments in infrun.c.
988 The TO area is only guaranteed to have space for
989 gdbarch_max_insn_length (arch) bytes, so this function must not
990 write more bytes than that to that area.
992 If you do not provide this function, GDB assumes that the
993 architecture does not support displaced stepping.
995 If the instruction cannot execute out of line, return NULL. The
996 core falls back to stepping past the instruction in-line instead in
999 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
1001 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1002 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1003 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
1005 /* Return true if GDB should use hardware single-stepping to execute
1006 the displaced instruction identified by CLOSURE. If false,
1007 GDB will simply restart execution at the displaced instruction
1008 location, and it is up to the target to ensure GDB will receive
1009 control again (e.g. by placing a software breakpoint instruction
1010 into the displaced instruction buffer).
1012 The default implementation returns false on all targets that
1013 provide a gdbarch_software_single_step routine, and true otherwise. */
1015 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1016 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1017 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
1019 /* Fix up the state resulting from successfully single-stepping a
1020 displaced instruction, to give the result we would have gotten from
1021 stepping the instruction in its original location.
1023 REGS is the register state resulting from single-stepping the
1024 displaced instruction.
1026 CLOSURE is the result from the matching call to
1027 gdbarch_displaced_step_copy_insn.
1029 If you provide gdbarch_displaced_step_copy_insn.but not this
1030 function, then GDB assumes that no fixup is needed after
1031 single-stepping the instruction.
1033 For a general explanation of displaced stepping and how GDB uses it,
1034 see the comments in infrun.c. */
1036 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
1038 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1039 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1040 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
1042 /* Return the address of an appropriate place to put displaced
1043 instructions while we step over them. There need only be one such
1044 place, since we're only stepping one thread over a breakpoint at a
1047 For a general explanation of displaced stepping and how GDB uses it,
1048 see the comments in infrun.c. */
1050 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
1051 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
1052 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
1054 /* Relocate an instruction to execute at a different address. OLDLOC
1055 is the address in the inferior memory where the instruction to
1056 relocate is currently at. On input, TO points to the destination
1057 where we want the instruction to be copied (and possibly adjusted)
1058 to. On output, it points to one past the end of the resulting
1059 instruction(s). The effect of executing the instruction at TO shall
1060 be the same as if executing it at FROM. For example, call
1061 instructions that implicitly push the return address on the stack
1062 should be adjusted to return to the instruction after OLDLOC;
1063 relative branches, and other PC-relative instructions need the
1064 offset adjusted; etc. */
1066 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1068 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1069 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1070 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1072 /* Refresh overlay mapped state for section OSECT. */
1074 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1076 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1077 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1078 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1080 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1082 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1083 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1084 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1086 /* Handle special encoding of static variables in stabs debug info. */
1088 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
1090 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
1091 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
1092 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
1094 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1096 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1097 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1099 /* Parse the instruction at ADDR storing in the record execution log
1100 the registers REGCACHE and memory ranges that will be affected when
1101 the instruction executes, along with their current values.
1102 Return -1 if something goes wrong, 0 otherwise. */
1104 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
1106 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1107 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1108 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1110 /* Save process state after a signal.
1111 Return -1 if something goes wrong, 0 otherwise. */
1113 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1115 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1116 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1117 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1119 /* Signal translation: translate inferior's signal (target's) number
1120 into GDB's representation. The implementation of this method must
1121 be host independent. IOW, don't rely on symbols of the NAT_FILE
1122 header (the nm-*.h files), the host <signal.h> header, or similar
1123 headers. This is mainly used when cross-debugging core files ---
1124 "Live" targets hide the translation behind the target interface
1125 (target_wait, target_resume, etc.). */
1127 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1129 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1130 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1131 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1133 /* Signal translation: translate the GDB's internal signal number into
1134 the inferior's signal (target's) representation. The implementation
1135 of this method must be host independent. IOW, don't rely on symbols
1136 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1137 header, or similar headers.
1138 Return the target signal number if found, or -1 if the GDB internal
1139 signal number is invalid. */
1141 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1143 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1144 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1145 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1147 /* Extra signal info inspection.
1149 Return a type suitable to inspect extra signal information. */
1151 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1153 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1154 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1155 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1157 /* Record architecture-specific information from the symbol table. */
1159 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1161 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1162 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1163 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1165 /* Function for the 'catch syscall' feature.
1166 Get architecture-specific system calls information from registers. */
1168 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1170 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1171 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
1172 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1174 /* The filename of the XML syscall for this architecture. */
1176 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1177 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1179 /* Information about system calls from this architecture */
1181 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1182 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1184 /* SystemTap related fields and functions.
1185 A NULL-terminated array of prefixes used to mark an integer constant
1186 on the architecture's assembly.
1187 For example, on x86 integer constants are written as:
1189 $10 ;; integer constant 10
1191 in this case, this prefix would be the character `$'. */
1193 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1194 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1196 /* A NULL-terminated array of suffixes used to mark an integer constant
1197 on the architecture's assembly. */
1199 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1200 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1202 /* A NULL-terminated array of prefixes used to mark a register name on
1203 the architecture's assembly.
1204 For example, on x86 the register name is written as:
1206 %eax ;; register eax
1208 in this case, this prefix would be the character `%'. */
1210 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1211 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1213 /* A NULL-terminated array of suffixes used to mark a register name on
1214 the architecture's assembly. */
1216 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1217 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1219 /* A NULL-terminated array of prefixes used to mark a register
1220 indirection on the architecture's assembly.
1221 For example, on x86 the register indirection is written as:
1223 (%eax) ;; indirecting eax
1225 in this case, this prefix would be the charater `('.
1227 Please note that we use the indirection prefix also for register
1228 displacement, e.g., `4(%eax)' on x86. */
1230 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1231 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1233 /* A NULL-terminated array of suffixes used to mark a register
1234 indirection on the architecture's assembly.
1235 For example, on x86 the register indirection is written as:
1237 (%eax) ;; indirecting eax
1239 in this case, this prefix would be the charater `)'.
1241 Please note that we use the indirection suffix also for register
1242 displacement, e.g., `4(%eax)' on x86. */
1244 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1245 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1247 /* Prefix(es) used to name a register using GDB's nomenclature.
1249 For example, on PPC a register is represented by a number in the assembly
1250 language (e.g., `10' is the 10th general-purpose register). However,
1251 inside GDB this same register has an `r' appended to its name, so the 10th
1252 register would be represented as `r10' internally. */
1254 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1255 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1257 /* Suffix used to name a register using GDB's nomenclature. */
1259 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1260 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1262 /* Check if S is a single operand.
1264 Single operands can be:
1265 - Literal integers, e.g. `$10' on x86
1266 - Register access, e.g. `%eax' on x86
1267 - Register indirection, e.g. `(%eax)' on x86
1268 - Register displacement, e.g. `4(%eax)' on x86
1270 This function should check for these patterns on the string
1271 and return 1 if some were found, or zero otherwise. Please try to match
1272 as much info as you can from the string, i.e., if you have to match
1273 something like `(%', do not match just the `('. */
1275 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1277 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1278 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1279 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1281 /* Function used to handle a "special case" in the parser.
1283 A "special case" is considered to be an unknown token, i.e., a token
1284 that the parser does not know how to parse. A good example of special
1285 case would be ARM's register displacement syntax:
1287 [R0, #4] ;; displacing R0 by 4
1289 Since the parser assumes that a register displacement is of the form:
1291 <number> <indirection_prefix> <register_name> <indirection_suffix>
1293 it means that it will not be able to recognize and parse this odd syntax.
1294 Therefore, we should add a special case function that will handle this token.
1296 This function should generate the proper expression form of the expression
1297 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1298 and so on). It should also return 1 if the parsing was successful, or zero
1299 if the token was not recognized as a special token (in this case, returning
1300 zero means that the special parser is deferring the parsing to the generic
1301 parser), and should advance the buffer pointer (p->arg). */
1303 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1305 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1306 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1307 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1309 /* DTrace related functions.
1310 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1311 NARG must be >= 0. */
1313 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
1315 typedef void (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1316 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1317 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1319 /* True if the given ADDR does not contain the instruction sequence
1320 corresponding to a disabled DTrace is-enabled probe. */
1322 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
1324 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1325 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
1326 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1328 /* Enable a DTrace is-enabled probe at ADDR. */
1330 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
1332 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1333 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1334 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1336 /* Disable a DTrace is-enabled probe at ADDR. */
1338 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
1340 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1341 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1342 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1344 /* True if the list of shared libraries is one and only for all
1345 processes, as opposed to a list of shared libraries per inferior.
1346 This usually means that all processes, although may or may not share
1347 an address space, will see the same set of symbols at the same
1350 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1351 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1353 /* On some targets, even though each inferior has its own private
1354 address space, the debug interface takes care of making breakpoints
1355 visible to all address spaces automatically. For such cases,
1356 this property should be set to true. */
1358 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1359 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1361 /* True if inferiors share an address space (e.g., uClinux). */
1363 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1364 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1365 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1367 /* True if a fast tracepoint can be set at an address. */
1369 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1370 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1371 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1373 /* Guess register state based on tracepoint location. Used for tracepoints
1374 where no registers have been collected, but there's only one location,
1375 allowing us to guess the PC value, and perhaps some other registers.
1376 On entry, regcache has all registers marked as unavailable. */
1378 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1379 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1380 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1382 /* Return the "auto" target charset. */
1384 typedef const char * (gdbarch_auto_charset_ftype) (void);
1385 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1386 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1388 /* Return the "auto" target wide charset. */
1390 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1391 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1392 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1394 /* If non-empty, this is a file extension that will be opened in place
1395 of the file extension reported by the shared library list.
1397 This is most useful for toolchains that use a post-linker tool,
1398 where the names of the files run on the target differ in extension
1399 compared to the names of the files GDB should load for debug info. */
1401 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1402 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1404 /* If true, the target OS has DOS-based file system semantics. That
1405 is, absolute paths include a drive name, and the backslash is
1406 considered a directory separator. */
1408 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1409 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1411 /* Generate bytecodes to collect the return address in a frame.
1412 Since the bytecodes run on the target, possibly with GDB not even
1413 connected, the full unwinding machinery is not available, and
1414 typically this function will issue bytecodes for one or more likely
1415 places that the return address may be found. */
1417 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1418 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1419 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1421 /* Implement the "info proc" command. */
1423 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1425 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1426 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1427 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1429 /* Implement the "info proc" command for core files. Noe that there
1430 are two "info_proc"-like methods on gdbarch -- one for core files,
1431 one for live targets. */
1433 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1435 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1436 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1437 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1439 /* Iterate over all objfiles in the order that makes the most sense
1440 for the architecture to make global symbol searches.
1442 CB is a callback function where OBJFILE is the objfile to be searched,
1443 and CB_DATA a pointer to user-defined data (the same data that is passed
1444 when calling this gdbarch method). The iteration stops if this function
1447 CB_DATA is a pointer to some user-defined data to be passed to
1450 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1451 inspected when the symbol search was requested. */
1453 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);
1454 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);
1455 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);
1457 /* Ravenscar arch-dependent ops. */
1459 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1460 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1462 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1464 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1465 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1466 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1468 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1470 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1471 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1472 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1474 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1476 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1477 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1478 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1480 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1481 Return 0 if *READPTR is already at the end of the buffer.
1482 Return -1 if there is insufficient buffer for a whole entry.
1483 Return 1 if an entry was read into *TYPEP and *VALP. */
1485 extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1487 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1488 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1489 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1491 /* Print the description of a single auxv entry described by TYPE and VAL
1494 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1495 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1496 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
1498 /* Find the address range of the current inferior's vsyscall/vDSO, and
1499 write it to *RANGE. If the vsyscall's length can't be determined, a
1500 range with zero length is returned. Returns true if the vsyscall is
1501 found, false otherwise. */
1503 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1504 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1505 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1507 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1508 PROT has GDB_MMAP_PROT_* bitmask format.
1509 Throw an error if it is not possible. Returned address is always valid. */
1511 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1512 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1513 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1515 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1516 Print a warning if it is not possible. */
1518 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
1519 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
1520 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1522 /* Return string (caller has to use xfree for it) with options for GCC
1523 to produce code for this target, typically "-m64", "-m32" or "-m31".
1524 These options are put before CU's DW_AT_producer compilation options so that
1525 they can override it. Method may also return NULL. */
1527 typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1528 extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1529 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1531 /* Return a regular expression that matches names used by this
1532 architecture in GNU configury triplets. The result is statically
1533 allocated and must not be freed. The default implementation simply
1534 returns the BFD architecture name, which is correct in nearly every
1537 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1538 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1539 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1541 /* Return the size in 8-bit bytes of an addressable memory unit on this
1542 architecture. This corresponds to the number of 8-bit bytes associated to
1543 each address in memory. */
1545 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
1546 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
1547 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1549 /* Functions for allowing a target to modify its disassembler options. */
1551 extern char ** gdbarch_disassembler_options (struct gdbarch *gdbarch);
1552 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options);
1554 extern const disasm_options_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch);
1555 extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_t * valid_disassembler_options);
1557 /* Definition for an unknown syscall, used basically in error-cases. */
1558 #define UNKNOWN_SYSCALL (-1)
1560 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1563 /* Mechanism for co-ordinating the selection of a specific
1566 GDB targets (*-tdep.c) can register an interest in a specific
1567 architecture. Other GDB components can register a need to maintain
1568 per-architecture data.
1570 The mechanisms below ensures that there is only a loose connection
1571 between the set-architecture command and the various GDB
1572 components. Each component can independently register their need
1573 to maintain architecture specific data with gdbarch.
1577 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1580 The more traditional mega-struct containing architecture specific
1581 data for all the various GDB components was also considered. Since
1582 GDB is built from a variable number of (fairly independent)
1583 components it was determined that the global aproach was not
1587 /* Register a new architectural family with GDB.
1589 Register support for the specified ARCHITECTURE with GDB. When
1590 gdbarch determines that the specified architecture has been
1591 selected, the corresponding INIT function is called.
1595 The INIT function takes two parameters: INFO which contains the
1596 information available to gdbarch about the (possibly new)
1597 architecture; ARCHES which is a list of the previously created
1598 ``struct gdbarch'' for this architecture.
1600 The INFO parameter is, as far as possible, be pre-initialized with
1601 information obtained from INFO.ABFD or the global defaults.
1603 The ARCHES parameter is a linked list (sorted most recently used)
1604 of all the previously created architures for this architecture
1605 family. The (possibly NULL) ARCHES->gdbarch can used to access
1606 values from the previously selected architecture for this
1607 architecture family.
1609 The INIT function shall return any of: NULL - indicating that it
1610 doesn't recognize the selected architecture; an existing ``struct
1611 gdbarch'' from the ARCHES list - indicating that the new
1612 architecture is just a synonym for an earlier architecture (see
1613 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1614 - that describes the selected architecture (see gdbarch_alloc()).
1616 The DUMP_TDEP function shall print out all target specific values.
1617 Care should be taken to ensure that the function works in both the
1618 multi-arch and non- multi-arch cases. */
1622 struct gdbarch *gdbarch;
1623 struct gdbarch_list *next;
1628 /* Use default: NULL (ZERO). */
1629 const struct bfd_arch_info *bfd_arch_info;
1631 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1632 enum bfd_endian byte_order;
1634 enum bfd_endian byte_order_for_code;
1636 /* Use default: NULL (ZERO). */
1639 /* Use default: NULL (ZERO). */
1642 /* Architecture-specific information. The generic form for targets
1643 that have extra requirements. */
1644 struct gdbarch_tdep_info *tdep_info;
1646 /* Architecture-specific target description data. Numerous targets
1647 need only this, so give them an easy way to hold it. */
1648 struct tdesc_arch_data *tdesc_data;
1650 /* SPU file system ID. This is a single integer, so using the
1651 generic form would only complicate code. Other targets may
1652 reuse this member if suitable. */
1656 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1657 enum gdb_osabi osabi;
1659 /* Use default: NULL (ZERO). */
1660 const struct target_desc *target_desc;
1663 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1664 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1666 /* DEPRECATED - use gdbarch_register() */
1667 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1669 extern void gdbarch_register (enum bfd_architecture architecture,
1670 gdbarch_init_ftype *,
1671 gdbarch_dump_tdep_ftype *);
1674 /* Return a freshly allocated, NULL terminated, array of the valid
1675 architecture names. Since architectures are registered during the
1676 _initialize phase this function only returns useful information
1677 once initialization has been completed. */
1679 extern const char **gdbarch_printable_names (void);
1682 /* Helper function. Search the list of ARCHES for a GDBARCH that
1683 matches the information provided by INFO. */
1685 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1688 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1689 basic initialization using values obtained from the INFO and TDEP
1690 parameters. set_gdbarch_*() functions are called to complete the
1691 initialization of the object. */
1693 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1696 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1697 It is assumed that the caller freeds the ``struct
1700 extern void gdbarch_free (struct gdbarch *);
1703 /* Helper function. Allocate memory from the ``struct gdbarch''
1704 obstack. The memory is freed when the corresponding architecture
1707 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1708 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1709 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1711 /* Duplicate STRING, returning an equivalent string that's allocated on the
1712 obstack associated with GDBARCH. The string is freed when the corresponding
1713 architecture is also freed. */
1715 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1717 /* Helper function. Force an update of the current architecture.
1719 The actual architecture selected is determined by INFO, ``(gdb) set
1720 architecture'' et.al., the existing architecture and BFD's default
1721 architecture. INFO should be initialized to zero and then selected
1722 fields should be updated.
1724 Returns non-zero if the update succeeds. */
1726 extern int gdbarch_update_p (struct gdbarch_info info);
1729 /* Helper function. Find an architecture matching info.
1731 INFO should be initialized using gdbarch_info_init, relevant fields
1732 set, and then finished using gdbarch_info_fill.
1734 Returns the corresponding architecture, or NULL if no matching
1735 architecture was found. */
1737 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1740 /* Helper function. Set the target gdbarch to "gdbarch". */
1742 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1745 /* Register per-architecture data-pointer.
1747 Reserve space for a per-architecture data-pointer. An identifier
1748 for the reserved data-pointer is returned. That identifer should
1749 be saved in a local static variable.
1751 Memory for the per-architecture data shall be allocated using
1752 gdbarch_obstack_zalloc. That memory will be deleted when the
1753 corresponding architecture object is deleted.
1755 When a previously created architecture is re-selected, the
1756 per-architecture data-pointer for that previous architecture is
1757 restored. INIT() is not re-called.
1759 Multiple registrarants for any architecture are allowed (and
1760 strongly encouraged). */
1762 struct gdbarch_data;
1764 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1765 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1766 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1767 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1768 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1769 struct gdbarch_data *data,
1772 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1775 /* Set the dynamic target-system-dependent parameters (architecture,
1776 byte-order, ...) using information found in the BFD. */
1778 extern void set_gdbarch_from_file (bfd *);
1781 /* Initialize the current architecture to the "first" one we find on
1784 extern void initialize_current_architecture (void);
1786 /* gdbarch trace variable */
1787 extern unsigned int gdbarch_debug;
1789 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);