1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2016 Free Software Foundation, Inc.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file was created with the aid of ``gdbarch.sh''.
25 The Bourne shell script ``gdbarch.sh'' creates the files
26 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
27 against the existing ``gdbarch.[hc]''. Any differences found
30 If editing this file, please also run gdbarch.sh and merge any
31 changes into that script. Conversely, when making sweeping changes
32 to this file, modifying gdbarch.sh and using its output may prove
45 struct minimal_symbol;
49 struct disassemble_info;
52 struct bp_target_info;
56 struct displaced_step_closure;
60 struct stap_parse_info;
62 struct ravenscar_arch_ops;
63 struct elf_internal_linux_prpsinfo;
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 char or unsigned char for the target machine.
130 Just like CHAR_BIT in <limits.h> but describes the target machine.
131 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
133 Number of bits in a short or unsigned short for the target machine. */
135 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
136 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
138 /* Number of bits in an int or unsigned int for the target machine. */
140 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
141 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
143 /* Number of bits in a long or unsigned long for the target machine. */
145 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
146 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
148 /* Number of bits in a long long or unsigned long long for the target
151 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
152 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
154 /* Alignment of a long long or unsigned long long for the target
157 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
158 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
160 /* The ABI default bit-size and format for "half", "float", "double", and
161 "long double". These bit/format pairs should eventually be combined
162 into a single object. For the moment, just initialize them as a pair.
163 Each format describes both the big and little endian layouts (if
166 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
167 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
169 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
170 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
172 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
173 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
175 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
176 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
178 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
179 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
181 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
182 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
184 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
185 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
187 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
188 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
190 /* Returns the floating-point format to be used for values of length LENGTH.
191 NAME, if non-NULL, is the type name, which may be used to distinguish
192 different target formats of the same length. */
194 typedef const struct floatformat ** (gdbarch_floatformat_for_type_ftype) (struct gdbarch *gdbarch, const char *name, int length);
195 extern const struct floatformat ** gdbarch_floatformat_for_type (struct gdbarch *gdbarch, const char *name, int length);
196 extern void set_gdbarch_floatformat_for_type (struct gdbarch *gdbarch, gdbarch_floatformat_for_type_ftype *floatformat_for_type);
198 /* For most targets, a pointer on the target and its representation as an
199 address in GDB have the same size and "look the same". For such a
200 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
201 / addr_bit will be set from it.
203 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
204 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
205 gdbarch_address_to_pointer as well.
207 ptr_bit is the size of a pointer on the target */
209 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
210 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
212 /* addr_bit is the size of a target address as represented in gdb */
214 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
215 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
217 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
218 info. For .debug_frame FDEs, this is supposed to be the target address
219 size from the associated CU header, and which is equivalent to the
220 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
221 Unfortunately there is no good way to determine this value. Therefore
222 dwarf2_addr_size simply defaults to the target pointer size.
224 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
225 defined using the target's pointer size so far.
227 Note that dwarf2_addr_size only needs to be redefined by a target if the
228 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
229 and if Dwarf versions < 4 need to be supported. */
231 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
232 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
234 /* One if `char' acts like `signed char', zero if `unsigned char'. */
236 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
237 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
239 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
241 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
242 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
243 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
245 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
247 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
248 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
249 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
251 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
252 whole scheme for dealing with "frames" and "frame pointers" needs a
253 serious shakedown. */
255 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
256 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
257 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
259 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
261 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
262 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
263 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
265 /* Read a register into a new struct value. If the register is wholly
266 or partly unavailable, this should call mark_value_bytes_unavailable
267 as appropriate. If this is defined, then pseudo_register_read will
270 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
272 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
273 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
274 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
276 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
278 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
279 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
280 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
282 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
283 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
285 /* This macro gives the number of pseudo-registers that live in the
286 register namespace but do not get fetched or stored on the target.
287 These pseudo-registers may be aliases for other registers,
288 combinations of other registers, or they may be computed by GDB. */
290 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
291 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
293 /* Assemble agent expression bytecode to collect pseudo-register REG.
294 Return -1 if something goes wrong, 0 otherwise. */
296 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
298 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
299 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
300 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
302 /* Assemble agent expression bytecode to push the value of pseudo-register
303 REG on the interpreter stack.
304 Return -1 if something goes wrong, 0 otherwise. */
306 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
308 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
309 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
310 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
312 /* Some targets/architectures can do extra processing/display of
313 segmentation faults. E.g., Intel MPX boundary faults.
314 Call the architecture dependent function to handle the fault.
315 UIOUT is the output stream where the handler will place information. */
317 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch);
319 typedef void (gdbarch_handle_segmentation_fault_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout);
320 extern void gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout);
321 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, gdbarch_handle_segmentation_fault_ftype *handle_segmentation_fault);
323 /* GDB's standard (or well known) register numbers. These can map onto
324 a real register or a pseudo (computed) register or not be defined at
326 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
328 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
329 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
331 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
332 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
334 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
335 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
337 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
338 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
340 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
342 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
343 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
344 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
346 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
348 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
349 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
350 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
352 /* Convert from an sdb register number to an internal gdb register number. */
354 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
355 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
356 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
358 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
359 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
361 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
362 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
363 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
365 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
366 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
367 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
369 /* Return the type of a register specified by the architecture. Only
370 the register cache should call this function directly; others should
371 use "register_type". */
373 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
375 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
376 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
377 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
379 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
381 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
382 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
383 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
385 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
386 deprecated_fp_regnum. */
388 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
389 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
391 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
393 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);
394 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);
395 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
397 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
398 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
400 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
402 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);
403 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);
404 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
406 /* Return true if the code of FRAME is writable. */
408 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
409 extern int gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, struct frame_info *frame);
410 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable);
412 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
413 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
414 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
416 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
417 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
418 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
420 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
422 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
423 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
424 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
426 /* MAP a GDB RAW register number onto a simulator register number. See
427 also include/...-sim.h. */
429 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
430 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
431 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
433 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
434 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
435 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
437 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
438 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
439 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
441 /* Determine the address where a longjmp will land and save this address
442 in PC. Return nonzero on success.
444 FRAME corresponds to the longjmp frame. */
446 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
448 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
449 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
450 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
452 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
453 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
455 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
456 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
457 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
459 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
460 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);
461 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
463 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
464 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
465 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
467 /* Construct a value representing the contents of register REGNUM in
468 frame FRAME_ID, interpreted as type TYPE. The routine needs to
469 allocate and return a struct value with all value attributes
470 (but not the value contents) filled in. */
472 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
473 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
474 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
476 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
477 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
478 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
480 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
481 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
482 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
484 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
486 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
487 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
488 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
490 /* Return the return-value convention that will be used by FUNCTION
491 to return a value of type VALTYPE. FUNCTION may be NULL in which
492 case the return convention is computed based only on VALTYPE.
494 If READBUF is not NULL, extract the return value and save it in this buffer.
496 If WRITEBUF is not NULL, it contains a return value which will be
497 stored into the appropriate register. This can be used when we want
498 to force the value returned by a function (see the "return" command
501 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
503 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);
504 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);
505 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
507 /* Return true if the return value of function is stored in the first hidden
508 parameter. In theory, this feature should be language-dependent, specified
509 by language and its ABI, such as C++. Unfortunately, compiler may
510 implement it to a target-dependent feature. So that we need such hook here
511 to be aware of this in GDB. */
513 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
514 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
515 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);
517 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
518 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
519 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
521 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
523 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
524 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
525 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
527 /* On some platforms, a single function may provide multiple entry points,
528 e.g. one that is used for function-pointer calls and a different one
529 that is used for direct function calls.
530 In order to ensure that breakpoints set on the function will trigger
531 no matter via which entry point the function is entered, a platform
532 may provide the skip_entrypoint callback. It is called with IP set
533 to the main entry point of a function (as determined by the symbol table),
534 and should return the address of the innermost entry point, where the
535 actual breakpoint needs to be set. Note that skip_entrypoint is used
536 by GDB common code even when debugging optimized code, where skip_prologue
539 extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
541 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
542 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
543 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
545 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
546 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
547 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
549 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
550 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
551 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
553 /* Return the breakpoint kind for this target based on *PCPTR. */
555 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
556 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
557 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc);
559 /* Return the software breakpoint from KIND. KIND can have target
560 specific meaning like the Z0 kind parameter.
561 SIZE is set to the software breakpoint's length in memory. */
563 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size);
564 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size);
565 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind);
567 /* Return the breakpoint kind for this target based on the current
568 processor state (e.g. the current instruction mode on ARM) and the
569 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
571 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
572 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
573 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state);
575 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
577 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
578 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
579 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
581 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
582 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
583 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
585 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
586 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
587 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
589 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
590 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
592 /* A function can be addressed by either it's "pointer" (possibly a
593 descriptor address) or "entry point" (first executable instruction).
594 The method "convert_from_func_ptr_addr" converting the former to the
595 latter. gdbarch_deprecated_function_start_offset is being used to implement
596 a simplified subset of that functionality - the function's address
597 corresponds to the "function pointer" and the function's start
598 corresponds to the "function entry point" - and hence is redundant. */
600 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
601 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
603 /* Return the remote protocol register number associated with this
604 register. Normally the identity mapping. */
606 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
607 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
608 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
610 /* Fetch the target specific address used to represent a load module. */
612 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
614 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
615 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
616 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
618 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
619 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
621 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
623 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
624 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
625 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
627 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
629 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
630 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
631 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
633 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
634 frame-base. Enable frame-base before frame-unwind. */
636 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
638 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
639 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
640 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
642 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
644 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
645 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
646 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
648 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
649 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
650 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
652 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
653 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
655 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
656 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
657 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
659 /* On some machines there are bits in addresses which are not really
660 part of the address, but are used by the kernel, the hardware, etc.
661 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
662 we get a "real" address such as one would find in a symbol table.
663 This is used only for addresses of instructions, and even then I'm
664 not sure it's used in all contexts. It exists to deal with there
665 being a few stray bits in the PC which would mislead us, not as some
666 sort of generic thing to handle alignment or segmentation (it's
667 possible it should be in TARGET_READ_PC instead). */
669 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
670 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
671 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
673 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
674 indicates if the target needs software single step. An ISA method to
677 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
678 target can single step. If not, then implement single step using breakpoints.
680 Return a vector of addresses on which the software single step
681 breakpoints should be inserted. NULL means software single step is
683 Multiple breakpoints may be inserted for some instructions such as
684 conditional branch. However, each implementation must always evaluate
685 the condition and only put the breakpoint at the branch destination if
686 the condition is true, so that we ensure forward progress when stepping
687 past a conditional branch to self. */
689 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
691 typedef VEC (CORE_ADDR) * (gdbarch_software_single_step_ftype) (struct frame_info *frame);
692 extern VEC (CORE_ADDR) * gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
693 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
695 /* Return non-zero if the processor is executing a delay slot and a
696 further single-step is needed before the instruction finishes. */
698 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
700 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
701 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
702 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
704 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
705 disassembler. Perhaps objdump can handle it? */
707 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
708 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
709 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
711 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
712 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
713 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
715 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
716 evaluates non-zero, this is the address where the debugger will place
717 a step-resume breakpoint to get us past the dynamic linker. */
719 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
720 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
721 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
723 /* Some systems also have trampoline code for returning from shared libs. */
725 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
726 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
727 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
729 /* A target might have problems with watchpoints as soon as the stack
730 frame of the current function has been destroyed. This mostly happens
731 as the first action in a function's epilogue. stack_frame_destroyed_p()
732 is defined to return a non-zero value if either the given addr is one
733 instruction after the stack destroying instruction up to the trailing
734 return instruction or if we can figure out that the stack frame has
735 already been invalidated regardless of the value of addr. Targets
736 which don't suffer from that problem could just let this functionality
739 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
740 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
741 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
743 /* Process an ELF symbol in the minimal symbol table in a backend-specific
744 way. Normally this hook is supposed to do nothing, however if required,
745 then this hook can be used to apply tranformations to symbols that are
746 considered special in some way. For example the MIPS backend uses it
747 to interpret `st_other' information to mark compressed code symbols so
748 that they can be treated in the appropriate manner in the processing of
749 the main symbol table and DWARF-2 records. */
751 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
753 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
754 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
755 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
757 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
758 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
759 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
761 /* Process a symbol in the main symbol table in a backend-specific way.
762 Normally this hook is supposed to do nothing, however if required,
763 then this hook can be used to apply tranformations to symbols that
764 are considered special in some way. This is currently used by the
765 MIPS backend to make sure compressed code symbols have the ISA bit
766 set. This in turn is needed for symbol values seen in GDB to match
767 the values used at the runtime by the program itself, for function
768 and label references. */
770 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
771 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
772 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
774 /* Adjust the address retrieved from a DWARF-2 record other than a line
775 entry in a backend-specific way. Normally this hook is supposed to
776 return the address passed unchanged, however if that is incorrect for
777 any reason, then this hook can be used to fix the address up in the
778 required manner. This is currently used by the MIPS backend to make
779 sure addresses in FDE, range records, etc. referring to compressed
780 code have the ISA bit set, matching line information and the symbol
783 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
784 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
785 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
787 /* Adjust the address updated by a line entry in a backend-specific way.
788 Normally this hook is supposed to return the address passed unchanged,
789 however in the case of inconsistencies in these records, this hook can
790 be used to fix them up in the required manner. This is currently used
791 by the MIPS backend to make sure all line addresses in compressed code
792 are presented with the ISA bit set, which is not always the case. This
793 in turn ensures breakpoint addresses are correctly matched against the
796 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
797 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
798 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
800 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
801 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
803 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
804 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
806 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
808 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
809 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
810 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
812 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
814 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
815 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
816 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);
818 /* Return the appropriate type_flags for the supplied address class.
819 This function should return 1 if the address class was recognized and
820 type_flags was set, zero otherwise. */
822 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
824 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
825 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
826 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);
828 /* Is a register in a group */
830 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
831 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
832 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
834 /* Fetch the pointer to the ith function argument. */
836 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
838 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
839 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
840 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
842 /* Iterate over all supported register notes in a core file. For each
843 supported register note section, the iterator must call CB and pass
844 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
845 the supported register note sections based on the current register
846 values. Otherwise it should enumerate all supported register note
849 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
851 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
852 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
853 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
855 /* Create core file notes */
857 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
859 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
860 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
861 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
863 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
864 files. Most Linux architectures use the same prpsinfo32 or
865 prpsinfo64 layouts, and so won't need to provide this hook, as we
866 call the Linux generic routines in bfd to write prpsinfo notes by
869 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch);
871 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
872 extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
873 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo);
875 /* Find core file memory regions */
877 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
879 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
880 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
881 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
883 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
884 core file into buffer READBUF with length LEN. Return the number of bytes read
885 (zero indicates failure).
886 failed, otherwise, return the red length of READBUF. */
888 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
890 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
891 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
892 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
894 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
895 libraries list from core file into buffer READBUF with length LEN.
896 Return the number of bytes read (zero indicates failure). */
898 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
900 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
901 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
902 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
904 /* How the core target converts a PTID from a core file to a string. */
906 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
908 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
909 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
910 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
912 /* How the core target extracts the name of a thread from a core file. */
914 extern int gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
916 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
917 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
918 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
920 /* BFD target to use when generating a core file. */
922 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
924 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
925 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
927 /* If the elements of C++ vtables are in-place function descriptors rather
928 than normal function pointers (which may point to code or a descriptor),
931 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
932 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
934 /* Set if the least significant bit of the delta is used instead of the least
935 significant bit of the pfn for pointers to virtual member functions. */
937 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
938 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
940 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
942 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
943 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
944 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
946 /* The maximum length of an instruction on this architecture in bytes. */
948 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
950 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
951 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
953 /* Copy the instruction at FROM to TO, and make any adjustments
954 necessary to single-step it at that address.
956 REGS holds the state the thread's registers will have before
957 executing the copied instruction; the PC in REGS will refer to FROM,
958 not the copy at TO. The caller should update it to point at TO later.
960 Return a pointer to data of the architecture's choice to be passed
961 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
962 the instruction's effects have been completely simulated, with the
963 resulting state written back to REGS.
965 For a general explanation of displaced stepping and how GDB uses it,
966 see the comments in infrun.c.
968 The TO area is only guaranteed to have space for
969 gdbarch_max_insn_length (arch) bytes, so this function must not
970 write more bytes than that to that area.
972 If you do not provide this function, GDB assumes that the
973 architecture does not support displaced stepping.
975 If your architecture doesn't need to adjust instructions before
976 single-stepping them, consider using simple_displaced_step_copy_insn
979 If the instruction cannot execute out of line, return NULL. The
980 core falls back to stepping past the instruction in-line instead in
983 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
985 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
986 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
987 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
989 /* Return true if GDB should use hardware single-stepping to execute
990 the displaced instruction identified by CLOSURE. If false,
991 GDB will simply restart execution at the displaced instruction
992 location, and it is up to the target to ensure GDB will receive
993 control again (e.g. by placing a software breakpoint instruction
994 into the displaced instruction buffer).
996 The default implementation returns false on all targets that
997 provide a gdbarch_software_single_step routine, and true otherwise. */
999 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1000 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1001 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
1003 /* Fix up the state resulting from successfully single-stepping a
1004 displaced instruction, to give the result we would have gotten from
1005 stepping the instruction in its original location.
1007 REGS is the register state resulting from single-stepping the
1008 displaced instruction.
1010 CLOSURE is the result from the matching call to
1011 gdbarch_displaced_step_copy_insn.
1013 If you provide gdbarch_displaced_step_copy_insn.but not this
1014 function, then GDB assumes that no fixup is needed after
1015 single-stepping the instruction.
1017 For a general explanation of displaced stepping and how GDB uses it,
1018 see the comments in infrun.c. */
1020 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
1022 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1023 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1024 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
1026 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
1028 If you provide gdbarch_displaced_step_copy_insn, you must provide
1029 this function as well.
1031 If your architecture uses closures that don't need to be freed, then
1032 you can use simple_displaced_step_free_closure here.
1034 For a general explanation of displaced stepping and how GDB uses it,
1035 see the comments in infrun.c. */
1037 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1038 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1039 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
1041 /* Return the address of an appropriate place to put displaced
1042 instructions while we step over them. There need only be one such
1043 place, since we're only stepping one thread over a breakpoint at a
1046 For a general explanation of displaced stepping and how GDB uses it,
1047 see the comments in infrun.c. */
1049 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
1050 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
1051 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
1053 /* Relocate an instruction to execute at a different address. OLDLOC
1054 is the address in the inferior memory where the instruction to
1055 relocate is currently at. On input, TO points to the destination
1056 where we want the instruction to be copied (and possibly adjusted)
1057 to. On output, it points to one past the end of the resulting
1058 instruction(s). The effect of executing the instruction at TO shall
1059 be the same as if executing it at FROM. For example, call
1060 instructions that implicitly push the return address on the stack
1061 should be adjusted to return to the instruction after OLDLOC;
1062 relative branches, and other PC-relative instructions need the
1063 offset adjusted; etc. */
1065 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1067 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1068 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1069 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1071 /* Refresh overlay mapped state for section OSECT. */
1073 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1075 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1076 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1077 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1079 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1081 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1082 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1083 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1085 /* Handle special encoding of static variables in stabs debug info. */
1087 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
1089 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
1090 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
1091 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
1093 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1095 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1096 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1098 /* Parse the instruction at ADDR storing in the record execution log
1099 the registers REGCACHE and memory ranges that will be affected when
1100 the instruction executes, along with their current values.
1101 Return -1 if something goes wrong, 0 otherwise. */
1103 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
1105 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1106 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1107 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1109 /* Save process state after a signal.
1110 Return -1 if something goes wrong, 0 otherwise. */
1112 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1114 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1115 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1116 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1118 /* Signal translation: translate inferior's signal (target's) number
1119 into GDB's representation. The implementation of this method must
1120 be host independent. IOW, don't rely on symbols of the NAT_FILE
1121 header (the nm-*.h files), the host <signal.h> header, or similar
1122 headers. This is mainly used when cross-debugging core files ---
1123 "Live" targets hide the translation behind the target interface
1124 (target_wait, target_resume, etc.). */
1126 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1128 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1129 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1130 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1132 /* Signal translation: translate the GDB's internal signal number into
1133 the inferior's signal (target's) representation. The implementation
1134 of this method must be host independent. IOW, don't rely on symbols
1135 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1136 header, or similar headers.
1137 Return the target signal number if found, or -1 if the GDB internal
1138 signal number is invalid. */
1140 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1142 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1143 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1144 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1146 /* Extra signal info inspection.
1148 Return a type suitable to inspect extra signal information. */
1150 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1152 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1153 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1154 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1156 /* Record architecture-specific information from the symbol table. */
1158 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1160 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1161 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1162 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1164 /* Function for the 'catch syscall' feature.
1165 Get architecture-specific system calls information from registers. */
1167 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1169 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1170 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
1171 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1173 /* The filename of the XML syscall for this architecture. */
1175 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1176 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1178 /* Information about system calls from this architecture */
1180 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1181 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1183 /* SystemTap related fields and functions.
1184 A NULL-terminated array of prefixes used to mark an integer constant
1185 on the architecture's assembly.
1186 For example, on x86 integer constants are written as:
1188 $10 ;; integer constant 10
1190 in this case, this prefix would be the character `$'. */
1192 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1193 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1195 /* A NULL-terminated array of suffixes used to mark an integer constant
1196 on the architecture's assembly. */
1198 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1199 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1201 /* A NULL-terminated array of prefixes used to mark a register name on
1202 the architecture's assembly.
1203 For example, on x86 the register name is written as:
1205 %eax ;; register eax
1207 in this case, this prefix would be the character `%'. */
1209 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1210 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1212 /* A NULL-terminated array of suffixes used to mark a register name on
1213 the architecture's assembly. */
1215 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1216 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1218 /* A NULL-terminated array of prefixes used to mark a register
1219 indirection on the architecture's assembly.
1220 For example, on x86 the register indirection is written as:
1222 (%eax) ;; indirecting eax
1224 in this case, this prefix would be the charater `('.
1226 Please note that we use the indirection prefix also for register
1227 displacement, e.g., `4(%eax)' on x86. */
1229 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1230 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1232 /* A NULL-terminated array of suffixes used to mark a register
1233 indirection on the architecture's assembly.
1234 For example, on x86 the register indirection is written as:
1236 (%eax) ;; indirecting eax
1238 in this case, this prefix would be the charater `)'.
1240 Please note that we use the indirection suffix also for register
1241 displacement, e.g., `4(%eax)' on x86. */
1243 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1244 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1246 /* Prefix(es) used to name a register using GDB's nomenclature.
1248 For example, on PPC a register is represented by a number in the assembly
1249 language (e.g., `10' is the 10th general-purpose register). However,
1250 inside GDB this same register has an `r' appended to its name, so the 10th
1251 register would be represented as `r10' internally. */
1253 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1254 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1256 /* Suffix used to name a register using GDB's nomenclature. */
1258 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1259 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1261 /* Check if S is a single operand.
1263 Single operands can be:
1264 - Literal integers, e.g. `$10' on x86
1265 - Register access, e.g. `%eax' on x86
1266 - Register indirection, e.g. `(%eax)' on x86
1267 - Register displacement, e.g. `4(%eax)' on x86
1269 This function should check for these patterns on the string
1270 and return 1 if some were found, or zero otherwise. Please try to match
1271 as much info as you can from the string, i.e., if you have to match
1272 something like `(%', do not match just the `('. */
1274 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1276 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1277 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1278 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1280 /* Function used to handle a "special case" in the parser.
1282 A "special case" is considered to be an unknown token, i.e., a token
1283 that the parser does not know how to parse. A good example of special
1284 case would be ARM's register displacement syntax:
1286 [R0, #4] ;; displacing R0 by 4
1288 Since the parser assumes that a register displacement is of the form:
1290 <number> <indirection_prefix> <register_name> <indirection_suffix>
1292 it means that it will not be able to recognize and parse this odd syntax.
1293 Therefore, we should add a special case function that will handle this token.
1295 This function should generate the proper expression form of the expression
1296 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1297 and so on). It should also return 1 if the parsing was successful, or zero
1298 if the token was not recognized as a special token (in this case, returning
1299 zero means that the special parser is deferring the parsing to the generic
1300 parser), and should advance the buffer pointer (p->arg). */
1302 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1304 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1305 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1306 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1308 /* DTrace related functions.
1309 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1310 NARG must be >= 0. */
1312 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
1314 typedef void (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1315 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1316 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1318 /* True if the given ADDR does not contain the instruction sequence
1319 corresponding to a disabled DTrace is-enabled probe. */
1321 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
1323 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1324 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
1325 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1327 /* Enable a DTrace is-enabled probe at ADDR. */
1329 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
1331 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1332 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1333 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1335 /* Disable a DTrace is-enabled probe at ADDR. */
1337 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
1339 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1340 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1341 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1343 /* True if the list of shared libraries is one and only for all
1344 processes, as opposed to a list of shared libraries per inferior.
1345 This usually means that all processes, although may or may not share
1346 an address space, will see the same set of symbols at the same
1349 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1350 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1352 /* On some targets, even though each inferior has its own private
1353 address space, the debug interface takes care of making breakpoints
1354 visible to all address spaces automatically. For such cases,
1355 this property should be set to true. */
1357 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1358 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1360 /* True if inferiors share an address space (e.g., uClinux). */
1362 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1363 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1364 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1366 /* True if a fast tracepoint can be set at an address. */
1368 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1369 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1370 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1372 /* Guess register state based on tracepoint location. Used for tracepoints
1373 where no registers have been collected, but there's only one location,
1374 allowing us to guess the PC value, and perhaps some other registers.
1375 On entry, regcache has all registers marked as unavailable. */
1377 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1378 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1379 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1381 /* Return the "auto" target charset. */
1383 typedef const char * (gdbarch_auto_charset_ftype) (void);
1384 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1385 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1387 /* Return the "auto" target wide charset. */
1389 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1390 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1391 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1393 /* If non-empty, this is a file extension that will be opened in place
1394 of the file extension reported by the shared library list.
1396 This is most useful for toolchains that use a post-linker tool,
1397 where the names of the files run on the target differ in extension
1398 compared to the names of the files GDB should load for debug info. */
1400 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1401 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1403 /* If true, the target OS has DOS-based file system semantics. That
1404 is, absolute paths include a drive name, and the backslash is
1405 considered a directory separator. */
1407 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1408 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1410 /* Generate bytecodes to collect the return address in a frame.
1411 Since the bytecodes run on the target, possibly with GDB not even
1412 connected, the full unwinding machinery is not available, and
1413 typically this function will issue bytecodes for one or more likely
1414 places that the return address may be found. */
1416 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1417 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1418 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1420 /* Implement the "info proc" command. */
1422 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1424 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1425 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1426 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1428 /* Implement the "info proc" command for core files. Noe that there
1429 are two "info_proc"-like methods on gdbarch -- one for core files,
1430 one for live targets. */
1432 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1434 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1435 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1436 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1438 /* Iterate over all objfiles in the order that makes the most sense
1439 for the architecture to make global symbol searches.
1441 CB is a callback function where OBJFILE is the objfile to be searched,
1442 and CB_DATA a pointer to user-defined data (the same data that is passed
1443 when calling this gdbarch method). The iteration stops if this function
1446 CB_DATA is a pointer to some user-defined data to be passed to
1449 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1450 inspected when the symbol search was requested. */
1452 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);
1453 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);
1454 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);
1456 /* Ravenscar arch-dependent ops. */
1458 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1459 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1461 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1463 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1464 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1465 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1467 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1469 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1470 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1471 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1473 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1475 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1476 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1477 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1479 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1480 Return 0 if *READPTR is already at the end of the buffer.
1481 Return -1 if there is insufficient buffer for a whole entry.
1482 Return 1 if an entry was read into *TYPEP and *VALP. */
1484 extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1486 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1487 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1488 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1490 /* Print the description of a single auxv entry described by TYPE and VAL
1493 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1494 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1495 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
1497 /* Find the address range of the current inferior's vsyscall/vDSO, and
1498 write it to *RANGE. If the vsyscall's length can't be determined, a
1499 range with zero length is returned. Returns true if the vsyscall is
1500 found, false otherwise. */
1502 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1503 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1504 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1506 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1507 PROT has GDB_MMAP_PROT_* bitmask format.
1508 Throw an error if it is not possible. Returned address is always valid. */
1510 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1511 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1512 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1514 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1515 Print a warning if it is not possible. */
1517 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
1518 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
1519 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1521 /* Return string (caller has to use xfree for it) with options for GCC
1522 to produce code for this target, typically "-m64", "-m32" or "-m31".
1523 These options are put before CU's DW_AT_producer compilation options so that
1524 they can override it. Method may also return NULL. */
1526 typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1527 extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1528 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1530 /* Return a regular expression that matches names used by this
1531 architecture in GNU configury triplets. The result is statically
1532 allocated and must not be freed. The default implementation simply
1533 returns the BFD architecture name, which is correct in nearly every
1536 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1537 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1538 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1540 /* Return the size in 8-bit bytes of an addressable memory unit on this
1541 architecture. This corresponds to the number of 8-bit bytes associated to
1542 each address in memory. */
1544 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
1545 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
1546 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1548 /* Definition for an unknown syscall, used basically in error-cases. */
1549 #define UNKNOWN_SYSCALL (-1)
1551 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1554 /* Mechanism for co-ordinating the selection of a specific
1557 GDB targets (*-tdep.c) can register an interest in a specific
1558 architecture. Other GDB components can register a need to maintain
1559 per-architecture data.
1561 The mechanisms below ensures that there is only a loose connection
1562 between the set-architecture command and the various GDB
1563 components. Each component can independently register their need
1564 to maintain architecture specific data with gdbarch.
1568 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1571 The more traditional mega-struct containing architecture specific
1572 data for all the various GDB components was also considered. Since
1573 GDB is built from a variable number of (fairly independent)
1574 components it was determined that the global aproach was not
1578 /* Register a new architectural family with GDB.
1580 Register support for the specified ARCHITECTURE with GDB. When
1581 gdbarch determines that the specified architecture has been
1582 selected, the corresponding INIT function is called.
1586 The INIT function takes two parameters: INFO which contains the
1587 information available to gdbarch about the (possibly new)
1588 architecture; ARCHES which is a list of the previously created
1589 ``struct gdbarch'' for this architecture.
1591 The INFO parameter is, as far as possible, be pre-initialized with
1592 information obtained from INFO.ABFD or the global defaults.
1594 The ARCHES parameter is a linked list (sorted most recently used)
1595 of all the previously created architures for this architecture
1596 family. The (possibly NULL) ARCHES->gdbarch can used to access
1597 values from the previously selected architecture for this
1598 architecture family.
1600 The INIT function shall return any of: NULL - indicating that it
1601 doesn't recognize the selected architecture; an existing ``struct
1602 gdbarch'' from the ARCHES list - indicating that the new
1603 architecture is just a synonym for an earlier architecture (see
1604 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1605 - that describes the selected architecture (see gdbarch_alloc()).
1607 The DUMP_TDEP function shall print out all target specific values.
1608 Care should be taken to ensure that the function works in both the
1609 multi-arch and non- multi-arch cases. */
1613 struct gdbarch *gdbarch;
1614 struct gdbarch_list *next;
1619 /* Use default: NULL (ZERO). */
1620 const struct bfd_arch_info *bfd_arch_info;
1622 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1623 enum bfd_endian byte_order;
1625 enum bfd_endian byte_order_for_code;
1627 /* Use default: NULL (ZERO). */
1630 /* Use default: NULL (ZERO). */
1633 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1634 enum gdb_osabi osabi;
1636 /* Use default: NULL (ZERO). */
1637 const struct target_desc *target_desc;
1640 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1641 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1643 /* DEPRECATED - use gdbarch_register() */
1644 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1646 extern void gdbarch_register (enum bfd_architecture architecture,
1647 gdbarch_init_ftype *,
1648 gdbarch_dump_tdep_ftype *);
1651 /* Return a freshly allocated, NULL terminated, array of the valid
1652 architecture names. Since architectures are registered during the
1653 _initialize phase this function only returns useful information
1654 once initialization has been completed. */
1656 extern const char **gdbarch_printable_names (void);
1659 /* Helper function. Search the list of ARCHES for a GDBARCH that
1660 matches the information provided by INFO. */
1662 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1665 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1666 basic initialization using values obtained from the INFO and TDEP
1667 parameters. set_gdbarch_*() functions are called to complete the
1668 initialization of the object. */
1670 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1673 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1674 It is assumed that the caller freeds the ``struct
1677 extern void gdbarch_free (struct gdbarch *);
1680 /* Helper function. Allocate memory from the ``struct gdbarch''
1681 obstack. The memory is freed when the corresponding architecture
1684 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1685 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1686 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1688 /* Duplicate STRING, returning an equivalent string that's allocated on the
1689 obstack associated with GDBARCH. The string is freed when the corresponding
1690 architecture is also freed. */
1692 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1694 /* Helper function. Force an update of the current architecture.
1696 The actual architecture selected is determined by INFO, ``(gdb) set
1697 architecture'' et.al., the existing architecture and BFD's default
1698 architecture. INFO should be initialized to zero and then selected
1699 fields should be updated.
1701 Returns non-zero if the update succeeds. */
1703 extern int gdbarch_update_p (struct gdbarch_info info);
1706 /* Helper function. Find an architecture matching info.
1708 INFO should be initialized using gdbarch_info_init, relevant fields
1709 set, and then finished using gdbarch_info_fill.
1711 Returns the corresponding architecture, or NULL if no matching
1712 architecture was found. */
1714 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1717 /* Helper function. Set the target gdbarch to "gdbarch". */
1719 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1722 /* Register per-architecture data-pointer.
1724 Reserve space for a per-architecture data-pointer. An identifier
1725 for the reserved data-pointer is returned. That identifer should
1726 be saved in a local static variable.
1728 Memory for the per-architecture data shall be allocated using
1729 gdbarch_obstack_zalloc. That memory will be deleted when the
1730 corresponding architecture object is deleted.
1732 When a previously created architecture is re-selected, the
1733 per-architecture data-pointer for that previous architecture is
1734 restored. INIT() is not re-called.
1736 Multiple registrarants for any architecture are allowed (and
1737 strongly encouraged). */
1739 struct gdbarch_data;
1741 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1742 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1743 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1744 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1745 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1746 struct gdbarch_data *data,
1749 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1752 /* Set the dynamic target-system-dependent parameters (architecture,
1753 byte-order, ...) using information found in the BFD. */
1755 extern void set_gdbarch_from_file (bfd *);
1758 /* Initialize the current architecture to the "first" one we find on
1761 extern void initialize_current_architecture (void);
1763 /* gdbarch trace variable */
1764 extern unsigned int gdbarch_debug;
1766 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);