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 /* For most targets, a pointer on the target and its representation as an
191 address in GDB have the same size and "look the same". For such a
192 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
193 / addr_bit will be set from it.
195 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
196 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
197 gdbarch_address_to_pointer as well.
199 ptr_bit is the size of a pointer on the target */
201 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
202 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
204 /* addr_bit is the size of a target address as represented in gdb */
206 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
207 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
209 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
210 info. For .debug_frame FDEs, this is supposed to be the target address
211 size from the associated CU header, and which is equivalent to the
212 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
213 Unfortunately there is no good way to determine this value. Therefore
214 dwarf2_addr_size simply defaults to the target pointer size.
216 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
217 defined using the target's pointer size so far.
219 Note that dwarf2_addr_size only needs to be redefined by a target if the
220 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
221 and if Dwarf versions < 4 need to be supported. */
223 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
224 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
226 /* One if `char' acts like `signed char', zero if `unsigned char'. */
228 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
229 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
231 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
233 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
234 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
235 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
237 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
239 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
240 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
241 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
243 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
244 whole scheme for dealing with "frames" and "frame pointers" needs a
245 serious shakedown. */
247 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
248 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
249 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
251 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
253 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
254 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
255 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
257 /* Read a register into a new struct value. If the register is wholly
258 or partly unavailable, this should call mark_value_bytes_unavailable
259 as appropriate. If this is defined, then pseudo_register_read will
262 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
264 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
265 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
266 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
268 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
270 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
271 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
272 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
274 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
275 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
277 /* This macro gives the number of pseudo-registers that live in the
278 register namespace but do not get fetched or stored on the target.
279 These pseudo-registers may be aliases for other registers,
280 combinations of other registers, or they may be computed by GDB. */
282 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
283 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
285 /* Assemble agent expression bytecode to collect pseudo-register REG.
286 Return -1 if something goes wrong, 0 otherwise. */
288 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
290 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
291 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
292 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
294 /* Assemble agent expression bytecode to push the value of pseudo-register
295 REG on the interpreter stack.
296 Return -1 if something goes wrong, 0 otherwise. */
298 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
300 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
301 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
302 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
304 /* Some targets/architectures can do extra processing/display of
305 segmentation faults. E.g., Intel MPX boundary faults.
306 Call the architecture dependent function to handle the fault.
307 UIOUT is the output stream where the handler will place information. */
309 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch);
311 typedef void (gdbarch_handle_segmentation_fault_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout);
312 extern void gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout);
313 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, gdbarch_handle_segmentation_fault_ftype *handle_segmentation_fault);
315 /* GDB's standard (or well known) register numbers. These can map onto
316 a real register or a pseudo (computed) register or not be defined at
318 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
320 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
321 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
323 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
324 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
326 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
327 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
329 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
330 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
332 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
334 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
335 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
336 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
338 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
340 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
341 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
342 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
344 /* Convert from an sdb register number to an internal gdb register number. */
346 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
347 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
348 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
350 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
351 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
353 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
354 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
355 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
357 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
358 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
359 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
361 /* Return the type of a register specified by the architecture. Only
362 the register cache should call this function directly; others should
363 use "register_type". */
365 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
367 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
368 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
369 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
371 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
373 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
374 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
375 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
377 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
378 deprecated_fp_regnum. */
380 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
381 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
383 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
385 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);
386 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);
387 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
389 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
390 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
392 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
394 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);
395 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);
396 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
398 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
399 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
400 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
402 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
403 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
404 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
406 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
408 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
409 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
410 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
412 /* MAP a GDB RAW register number onto a simulator register number. See
413 also include/...-sim.h. */
415 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
416 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
417 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
419 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
420 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
421 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
423 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
424 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
425 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
427 /* Determine the address where a longjmp will land and save this address
428 in PC. Return nonzero on success.
430 FRAME corresponds to the longjmp frame. */
432 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
434 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
435 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
436 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
438 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
439 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
441 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
442 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
443 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
445 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
446 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);
447 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
449 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
450 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
451 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
453 /* Construct a value representing the contents of register REGNUM in
454 frame FRAME_ID, interpreted as type TYPE. The routine needs to
455 allocate and return a struct value with all value attributes
456 (but not the value contents) filled in. */
458 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
459 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
460 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
462 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
463 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
464 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
466 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
467 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
468 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
470 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
472 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
473 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
474 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
476 /* Return the return-value convention that will be used by FUNCTION
477 to return a value of type VALTYPE. FUNCTION may be NULL in which
478 case the return convention is computed based only on VALTYPE.
480 If READBUF is not NULL, extract the return value and save it in this buffer.
482 If WRITEBUF is not NULL, it contains a return value which will be
483 stored into the appropriate register. This can be used when we want
484 to force the value returned by a function (see the "return" command
487 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
489 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);
490 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);
491 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
493 /* Return true if the return value of function is stored in the first hidden
494 parameter. In theory, this feature should be language-dependent, specified
495 by language and its ABI, such as C++. Unfortunately, compiler may
496 implement it to a target-dependent feature. So that we need such hook here
497 to be aware of this in GDB. */
499 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
500 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
501 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);
503 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
504 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
505 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
507 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
509 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
510 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
511 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
513 /* On some platforms, a single function may provide multiple entry points,
514 e.g. one that is used for function-pointer calls and a different one
515 that is used for direct function calls.
516 In order to ensure that breakpoints set on the function will trigger
517 no matter via which entry point the function is entered, a platform
518 may provide the skip_entrypoint callback. It is called with IP set
519 to the main entry point of a function (as determined by the symbol table),
520 and should return the address of the innermost entry point, where the
521 actual breakpoint needs to be set. Note that skip_entrypoint is used
522 by GDB common code even when debugging optimized code, where skip_prologue
525 extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
527 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
528 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
529 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
531 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
532 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
533 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
535 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
536 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
537 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
539 /* Return the adjusted address and kind to use for Z0/Z1 packets.
540 KIND is usually the memory length of the breakpoint, but may have a
541 different target-specific meaning. */
543 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
544 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
545 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
547 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
549 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
550 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
551 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
553 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
554 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
555 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
557 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
558 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
559 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
561 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
562 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
564 /* A function can be addressed by either it's "pointer" (possibly a
565 descriptor address) or "entry point" (first executable instruction).
566 The method "convert_from_func_ptr_addr" converting the former to the
567 latter. gdbarch_deprecated_function_start_offset is being used to implement
568 a simplified subset of that functionality - the function's address
569 corresponds to the "function pointer" and the function's start
570 corresponds to the "function entry point" - and hence is redundant. */
572 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
573 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
575 /* Return the remote protocol register number associated with this
576 register. Normally the identity mapping. */
578 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
579 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
580 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
582 /* Fetch the target specific address used to represent a load module. */
584 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
586 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
587 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
588 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
590 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
591 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
593 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
595 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
596 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
597 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
599 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
601 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
602 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
603 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
605 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
606 frame-base. Enable frame-base before frame-unwind. */
608 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
610 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
611 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
612 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
614 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
616 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
617 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
618 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
620 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
621 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
622 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
624 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
625 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
627 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
628 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
629 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
631 /* On some machines there are bits in addresses which are not really
632 part of the address, but are used by the kernel, the hardware, etc.
633 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
634 we get a "real" address such as one would find in a symbol table.
635 This is used only for addresses of instructions, and even then I'm
636 not sure it's used in all contexts. It exists to deal with there
637 being a few stray bits in the PC which would mislead us, not as some
638 sort of generic thing to handle alignment or segmentation (it's
639 possible it should be in TARGET_READ_PC instead). */
641 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
642 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
643 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
645 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
646 indicates if the target needs software single step. An ISA method to
649 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
650 target can single step. If not, then implement single step using breakpoints.
652 A return value of 1 means that the software_single_step breakpoints
653 were inserted; 0 means they were not. Multiple breakpoints may be
654 inserted for some instructions such as conditional branch. However,
655 each implementation must always evaluate the condition and only put
656 the breakpoint at the branch destination if the condition is true, so
657 that we ensure forward progress when stepping past a conditional
660 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
662 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
663 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
664 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
666 /* Return non-zero if the processor is executing a delay slot and a
667 further single-step is needed before the instruction finishes. */
669 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
671 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
672 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
673 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
675 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
676 disassembler. Perhaps objdump can handle it? */
678 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
679 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
680 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
682 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
683 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
684 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
686 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
687 evaluates non-zero, this is the address where the debugger will place
688 a step-resume breakpoint to get us past the dynamic linker. */
690 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
691 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
692 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
694 /* Some systems also have trampoline code for returning from shared libs. */
696 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
697 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
698 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
700 /* A target might have problems with watchpoints as soon as the stack
701 frame of the current function has been destroyed. This mostly happens
702 as the first action in a function's epilogue. stack_frame_destroyed_p()
703 is defined to return a non-zero value if either the given addr is one
704 instruction after the stack destroying instruction up to the trailing
705 return instruction or if we can figure out that the stack frame has
706 already been invalidated regardless of the value of addr. Targets
707 which don't suffer from that problem could just let this functionality
710 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
711 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
712 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
714 /* Process an ELF symbol in the minimal symbol table in a backend-specific
715 way. Normally this hook is supposed to do nothing, however if required,
716 then this hook can be used to apply tranformations to symbols that are
717 considered special in some way. For example the MIPS backend uses it
718 to interpret `st_other' information to mark compressed code symbols so
719 that they can be treated in the appropriate manner in the processing of
720 the main symbol table and DWARF-2 records. */
722 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
724 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
725 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
726 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
728 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
729 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
730 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
732 /* Process a symbol in the main symbol table in a backend-specific way.
733 Normally this hook is supposed to do nothing, however if required,
734 then this hook can be used to apply tranformations to symbols that
735 are considered special in some way. This is currently used by the
736 MIPS backend to make sure compressed code symbols have the ISA bit
737 set. This in turn is needed for symbol values seen in GDB to match
738 the values used at the runtime by the program itself, for function
739 and label references. */
741 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
742 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
743 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
745 /* Adjust the address retrieved from a DWARF-2 record other than a line
746 entry in a backend-specific way. Normally this hook is supposed to
747 return the address passed unchanged, however if that is incorrect for
748 any reason, then this hook can be used to fix the address up in the
749 required manner. This is currently used by the MIPS backend to make
750 sure addresses in FDE, range records, etc. referring to compressed
751 code have the ISA bit set, matching line information and the symbol
754 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
755 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
756 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
758 /* Adjust the address updated by a line entry in a backend-specific way.
759 Normally this hook is supposed to return the address passed unchanged,
760 however in the case of inconsistencies in these records, this hook can
761 be used to fix them up in the required manner. This is currently used
762 by the MIPS backend to make sure all line addresses in compressed code
763 are presented with the ISA bit set, which is not always the case. This
764 in turn ensures breakpoint addresses are correctly matched against the
767 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
768 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
769 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
771 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
772 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
774 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
775 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
777 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
779 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
780 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
781 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
783 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
785 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
786 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
787 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);
789 /* Return the appropriate type_flags for the supplied address class.
790 This function should return 1 if the address class was recognized and
791 type_flags was set, zero otherwise. */
793 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
795 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
796 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
797 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);
799 /* Is a register in a group */
801 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
802 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
803 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
805 /* Fetch the pointer to the ith function argument. */
807 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
809 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
810 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
811 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
813 /* Iterate over all supported register notes in a core file. For each
814 supported register note section, the iterator must call CB and pass
815 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
816 the supported register note sections based on the current register
817 values. Otherwise it should enumerate all supported register note
820 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
822 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
823 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
824 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
826 /* Create core file notes */
828 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
830 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
831 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
832 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
834 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
835 files. Most Linux architectures use the same prpsinfo32 or
836 prpsinfo64 layouts, and so won't need to provide this hook, as we
837 call the Linux generic routines in bfd to write prpsinfo notes by
840 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch);
842 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
843 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);
844 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo);
846 /* Find core file memory regions */
848 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
850 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
851 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
852 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
854 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
855 core file into buffer READBUF with length LEN. Return the number of bytes read
856 (zero indicates failure).
857 failed, otherwise, return the red length of READBUF. */
859 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
861 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
862 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
863 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
865 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
866 libraries list from core file into buffer READBUF with length LEN.
867 Return the number of bytes read (zero indicates failure). */
869 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
871 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
872 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
873 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
875 /* How the core target converts a PTID from a core file to a string. */
877 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
879 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
880 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
881 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
883 /* How the core target extracts the name of a thread from a core file. */
885 extern int gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
887 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
888 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
889 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
891 /* BFD target to use when generating a core file. */
893 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
895 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
896 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
898 /* If the elements of C++ vtables are in-place function descriptors rather
899 than normal function pointers (which may point to code or a descriptor),
902 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
903 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
905 /* Set if the least significant bit of the delta is used instead of the least
906 significant bit of the pfn for pointers to virtual member functions. */
908 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
909 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
911 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
913 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
914 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
915 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
917 /* The maximum length of an instruction on this architecture in bytes. */
919 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
921 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
922 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
924 /* Copy the instruction at FROM to TO, and make any adjustments
925 necessary to single-step it at that address.
927 REGS holds the state the thread's registers will have before
928 executing the copied instruction; the PC in REGS will refer to FROM,
929 not the copy at TO. The caller should update it to point at TO later.
931 Return a pointer to data of the architecture's choice to be passed
932 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
933 the instruction's effects have been completely simulated, with the
934 resulting state written back to REGS.
936 For a general explanation of displaced stepping and how GDB uses it,
937 see the comments in infrun.c.
939 The TO area is only guaranteed to have space for
940 gdbarch_max_insn_length (arch) bytes, so this function must not
941 write more bytes than that to that area.
943 If you do not provide this function, GDB assumes that the
944 architecture does not support displaced stepping.
946 If your architecture doesn't need to adjust instructions before
947 single-stepping them, consider using simple_displaced_step_copy_insn
950 If the instruction cannot execute out of line, return NULL. The
951 core falls back to stepping past the instruction in-line instead in
954 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
956 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
957 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
958 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
960 /* Return true if GDB should use hardware single-stepping to execute
961 the displaced instruction identified by CLOSURE. If false,
962 GDB will simply restart execution at the displaced instruction
963 location, and it is up to the target to ensure GDB will receive
964 control again (e.g. by placing a software breakpoint instruction
965 into the displaced instruction buffer).
967 The default implementation returns false on all targets that
968 provide a gdbarch_software_single_step routine, and true otherwise. */
970 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
971 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
972 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
974 /* Fix up the state resulting from successfully single-stepping a
975 displaced instruction, to give the result we would have gotten from
976 stepping the instruction in its original location.
978 REGS is the register state resulting from single-stepping the
979 displaced instruction.
981 CLOSURE is the result from the matching call to
982 gdbarch_displaced_step_copy_insn.
984 If you provide gdbarch_displaced_step_copy_insn.but not this
985 function, then GDB assumes that no fixup is needed after
986 single-stepping the instruction.
988 For a general explanation of displaced stepping and how GDB uses it,
989 see the comments in infrun.c. */
991 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
993 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
994 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
995 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
997 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
999 If you provide gdbarch_displaced_step_copy_insn, you must provide
1000 this function as well.
1002 If your architecture uses closures that don't need to be freed, then
1003 you can use simple_displaced_step_free_closure here.
1005 For a general explanation of displaced stepping and how GDB uses it,
1006 see the comments in infrun.c. */
1008 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1009 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1010 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
1012 /* Return the address of an appropriate place to put displaced
1013 instructions while we step over them. There need only be one such
1014 place, since we're only stepping one thread over a breakpoint at a
1017 For a general explanation of displaced stepping and how GDB uses it,
1018 see the comments in infrun.c. */
1020 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
1021 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
1022 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
1024 /* Relocate an instruction to execute at a different address. OLDLOC
1025 is the address in the inferior memory where the instruction to
1026 relocate is currently at. On input, TO points to the destination
1027 where we want the instruction to be copied (and possibly adjusted)
1028 to. On output, it points to one past the end of the resulting
1029 instruction(s). The effect of executing the instruction at TO shall
1030 be the same as if executing it at FROM. For example, call
1031 instructions that implicitly push the return address on the stack
1032 should be adjusted to return to the instruction after OLDLOC;
1033 relative branches, and other PC-relative instructions need the
1034 offset adjusted; etc. */
1036 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1038 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1039 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1040 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1042 /* Refresh overlay mapped state for section OSECT. */
1044 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1046 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1047 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1048 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1050 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1052 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1053 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1054 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1056 /* Handle special encoding of static variables in stabs debug info. */
1058 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
1060 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
1061 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
1062 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
1064 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1066 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1067 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1069 /* Parse the instruction at ADDR storing in the record execution log
1070 the registers REGCACHE and memory ranges that will be affected when
1071 the instruction executes, along with their current values.
1072 Return -1 if something goes wrong, 0 otherwise. */
1074 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
1076 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1077 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1078 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1080 /* Save process state after a signal.
1081 Return -1 if something goes wrong, 0 otherwise. */
1083 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1085 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1086 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1087 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1089 /* Signal translation: translate inferior's signal (target's) number
1090 into GDB's representation. The implementation of this method must
1091 be host independent. IOW, don't rely on symbols of the NAT_FILE
1092 header (the nm-*.h files), the host <signal.h> header, or similar
1093 headers. This is mainly used when cross-debugging core files ---
1094 "Live" targets hide the translation behind the target interface
1095 (target_wait, target_resume, etc.). */
1097 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1099 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1100 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1101 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1103 /* Signal translation: translate the GDB's internal signal number into
1104 the inferior's signal (target's) representation. The implementation
1105 of this method must be host independent. IOW, don't rely on symbols
1106 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1107 header, or similar headers.
1108 Return the target signal number if found, or -1 if the GDB internal
1109 signal number is invalid. */
1111 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1113 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1114 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1115 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1117 /* Extra signal info inspection.
1119 Return a type suitable to inspect extra signal information. */
1121 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1123 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1124 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1125 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1127 /* Record architecture-specific information from the symbol table. */
1129 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1131 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1132 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1133 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1135 /* Function for the 'catch syscall' feature.
1136 Get architecture-specific system calls information from registers. */
1138 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1140 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1141 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
1142 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1144 /* The filename of the XML syscall for this architecture. */
1146 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1147 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1149 /* Information about system calls from this architecture */
1151 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1152 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1154 /* SystemTap related fields and functions.
1155 A NULL-terminated array of prefixes used to mark an integer constant
1156 on the architecture's assembly.
1157 For example, on x86 integer constants are written as:
1159 $10 ;; integer constant 10
1161 in this case, this prefix would be the character `$'. */
1163 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1164 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1166 /* A NULL-terminated array of suffixes used to mark an integer constant
1167 on the architecture's assembly. */
1169 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1170 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1172 /* A NULL-terminated array of prefixes used to mark a register name on
1173 the architecture's assembly.
1174 For example, on x86 the register name is written as:
1176 %eax ;; register eax
1178 in this case, this prefix would be the character `%'. */
1180 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1181 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1183 /* A NULL-terminated array of suffixes used to mark a register name on
1184 the architecture's assembly. */
1186 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1187 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1189 /* A NULL-terminated array of prefixes used to mark a register
1190 indirection on the architecture's assembly.
1191 For example, on x86 the register indirection is written as:
1193 (%eax) ;; indirecting eax
1195 in this case, this prefix would be the charater `('.
1197 Please note that we use the indirection prefix also for register
1198 displacement, e.g., `4(%eax)' on x86. */
1200 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1201 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1203 /* A NULL-terminated array of suffixes used to mark a register
1204 indirection on the architecture's assembly.
1205 For example, on x86 the register indirection is written as:
1207 (%eax) ;; indirecting eax
1209 in this case, this prefix would be the charater `)'.
1211 Please note that we use the indirection suffix also for register
1212 displacement, e.g., `4(%eax)' on x86. */
1214 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1215 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1217 /* Prefix(es) used to name a register using GDB's nomenclature.
1219 For example, on PPC a register is represented by a number in the assembly
1220 language (e.g., `10' is the 10th general-purpose register). However,
1221 inside GDB this same register has an `r' appended to its name, so the 10th
1222 register would be represented as `r10' internally. */
1224 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1225 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1227 /* Suffix used to name a register using GDB's nomenclature. */
1229 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1230 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1232 /* Check if S is a single operand.
1234 Single operands can be:
1235 - Literal integers, e.g. `$10' on x86
1236 - Register access, e.g. `%eax' on x86
1237 - Register indirection, e.g. `(%eax)' on x86
1238 - Register displacement, e.g. `4(%eax)' on x86
1240 This function should check for these patterns on the string
1241 and return 1 if some were found, or zero otherwise. Please try to match
1242 as much info as you can from the string, i.e., if you have to match
1243 something like `(%', do not match just the `('. */
1245 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1247 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1248 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1249 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1251 /* Function used to handle a "special case" in the parser.
1253 A "special case" is considered to be an unknown token, i.e., a token
1254 that the parser does not know how to parse. A good example of special
1255 case would be ARM's register displacement syntax:
1257 [R0, #4] ;; displacing R0 by 4
1259 Since the parser assumes that a register displacement is of the form:
1261 <number> <indirection_prefix> <register_name> <indirection_suffix>
1263 it means that it will not be able to recognize and parse this odd syntax.
1264 Therefore, we should add a special case function that will handle this token.
1266 This function should generate the proper expression form of the expression
1267 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1268 and so on). It should also return 1 if the parsing was successful, or zero
1269 if the token was not recognized as a special token (in this case, returning
1270 zero means that the special parser is deferring the parsing to the generic
1271 parser), and should advance the buffer pointer (p->arg). */
1273 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1275 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1276 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1277 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1279 /* DTrace related functions.
1280 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1281 NARG must be >= 0. */
1283 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
1285 typedef void (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1286 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1287 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1289 /* True if the given ADDR does not contain the instruction sequence
1290 corresponding to a disabled DTrace is-enabled probe. */
1292 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
1294 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1295 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
1296 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1298 /* Enable a DTrace is-enabled probe at ADDR. */
1300 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
1302 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1303 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1304 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1306 /* Disable a DTrace is-enabled probe at ADDR. */
1308 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
1310 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1311 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1312 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1314 /* True if the list of shared libraries is one and only for all
1315 processes, as opposed to a list of shared libraries per inferior.
1316 This usually means that all processes, although may or may not share
1317 an address space, will see the same set of symbols at the same
1320 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1321 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1323 /* On some targets, even though each inferior has its own private
1324 address space, the debug interface takes care of making breakpoints
1325 visible to all address spaces automatically. For such cases,
1326 this property should be set to true. */
1328 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1329 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1331 /* True if inferiors share an address space (e.g., uClinux). */
1333 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1334 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1335 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1337 /* True if a fast tracepoint can be set at an address. */
1339 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1340 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1341 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1343 /* Guess register state based on tracepoint location. Used for tracepoints
1344 where no registers have been collected, but there's only one location,
1345 allowing us to guess the PC value, and perhaps some other registers.
1346 On entry, regcache has all registers marked as unavailable. */
1348 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1349 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1350 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1352 /* Return the "auto" target charset. */
1354 typedef const char * (gdbarch_auto_charset_ftype) (void);
1355 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1356 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1358 /* Return the "auto" target wide charset. */
1360 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1361 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1362 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1364 /* If non-empty, this is a file extension that will be opened in place
1365 of the file extension reported by the shared library list.
1367 This is most useful for toolchains that use a post-linker tool,
1368 where the names of the files run on the target differ in extension
1369 compared to the names of the files GDB should load for debug info. */
1371 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1372 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1374 /* If true, the target OS has DOS-based file system semantics. That
1375 is, absolute paths include a drive name, and the backslash is
1376 considered a directory separator. */
1378 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1379 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1381 /* Generate bytecodes to collect the return address in a frame.
1382 Since the bytecodes run on the target, possibly with GDB not even
1383 connected, the full unwinding machinery is not available, and
1384 typically this function will issue bytecodes for one or more likely
1385 places that the return address may be found. */
1387 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1388 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1389 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1391 /* Implement the "info proc" command. */
1393 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1395 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1396 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1397 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1399 /* Implement the "info proc" command for core files. Noe that there
1400 are two "info_proc"-like methods on gdbarch -- one for core files,
1401 one for live targets. */
1403 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1405 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1406 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1407 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1409 /* Iterate over all objfiles in the order that makes the most sense
1410 for the architecture to make global symbol searches.
1412 CB is a callback function where OBJFILE is the objfile to be searched,
1413 and CB_DATA a pointer to user-defined data (the same data that is passed
1414 when calling this gdbarch method). The iteration stops if this function
1417 CB_DATA is a pointer to some user-defined data to be passed to
1420 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1421 inspected when the symbol search was requested. */
1423 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);
1424 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);
1425 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);
1427 /* Ravenscar arch-dependent ops. */
1429 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1430 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1432 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1434 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1435 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1436 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1438 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1440 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1441 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1442 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1444 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1446 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1447 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1448 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1450 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1451 Return 0 if *READPTR is already at the end of the buffer.
1452 Return -1 if there is insufficient buffer for a whole entry.
1453 Return 1 if an entry was read into *TYPEP and *VALP. */
1455 extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1457 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1458 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1459 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1461 /* Find the address range of the current inferior's vsyscall/vDSO, and
1462 write it to *RANGE. If the vsyscall's length can't be determined, a
1463 range with zero length is returned. Returns true if the vsyscall is
1464 found, false otherwise. */
1466 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1467 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1468 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1470 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1471 PROT has GDB_MMAP_PROT_* bitmask format.
1472 Throw an error if it is not possible. Returned address is always valid. */
1474 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1475 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1476 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1478 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1479 Print a warning if it is not possible. */
1481 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
1482 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
1483 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1485 /* Return string (caller has to use xfree for it) with options for GCC
1486 to produce code for this target, typically "-m64", "-m32" or "-m31".
1487 These options are put before CU's DW_AT_producer compilation options so that
1488 they can override it. Method may also return NULL. */
1490 typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1491 extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1492 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1494 /* Return a regular expression that matches names used by this
1495 architecture in GNU configury triplets. The result is statically
1496 allocated and must not be freed. The default implementation simply
1497 returns the BFD architecture name, which is correct in nearly every
1500 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1501 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1502 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1504 /* Return the size in 8-bit bytes of an addressable memory unit on this
1505 architecture. This corresponds to the number of 8-bit bytes associated to
1506 each address in memory. */
1508 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
1509 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
1510 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1512 /* Definition for an unknown syscall, used basically in error-cases. */
1513 #define UNKNOWN_SYSCALL (-1)
1515 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1518 /* Mechanism for co-ordinating the selection of a specific
1521 GDB targets (*-tdep.c) can register an interest in a specific
1522 architecture. Other GDB components can register a need to maintain
1523 per-architecture data.
1525 The mechanisms below ensures that there is only a loose connection
1526 between the set-architecture command and the various GDB
1527 components. Each component can independently register their need
1528 to maintain architecture specific data with gdbarch.
1532 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1535 The more traditional mega-struct containing architecture specific
1536 data for all the various GDB components was also considered. Since
1537 GDB is built from a variable number of (fairly independent)
1538 components it was determined that the global aproach was not
1542 /* Register a new architectural family with GDB.
1544 Register support for the specified ARCHITECTURE with GDB. When
1545 gdbarch determines that the specified architecture has been
1546 selected, the corresponding INIT function is called.
1550 The INIT function takes two parameters: INFO which contains the
1551 information available to gdbarch about the (possibly new)
1552 architecture; ARCHES which is a list of the previously created
1553 ``struct gdbarch'' for this architecture.
1555 The INFO parameter is, as far as possible, be pre-initialized with
1556 information obtained from INFO.ABFD or the global defaults.
1558 The ARCHES parameter is a linked list (sorted most recently used)
1559 of all the previously created architures for this architecture
1560 family. The (possibly NULL) ARCHES->gdbarch can used to access
1561 values from the previously selected architecture for this
1562 architecture family.
1564 The INIT function shall return any of: NULL - indicating that it
1565 doesn't recognize the selected architecture; an existing ``struct
1566 gdbarch'' from the ARCHES list - indicating that the new
1567 architecture is just a synonym for an earlier architecture (see
1568 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1569 - that describes the selected architecture (see gdbarch_alloc()).
1571 The DUMP_TDEP function shall print out all target specific values.
1572 Care should be taken to ensure that the function works in both the
1573 multi-arch and non- multi-arch cases. */
1577 struct gdbarch *gdbarch;
1578 struct gdbarch_list *next;
1583 /* Use default: NULL (ZERO). */
1584 const struct bfd_arch_info *bfd_arch_info;
1586 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1587 enum bfd_endian byte_order;
1589 enum bfd_endian byte_order_for_code;
1591 /* Use default: NULL (ZERO). */
1594 /* Use default: NULL (ZERO). */
1597 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1598 enum gdb_osabi osabi;
1600 /* Use default: NULL (ZERO). */
1601 const struct target_desc *target_desc;
1604 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1605 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1607 /* DEPRECATED - use gdbarch_register() */
1608 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1610 extern void gdbarch_register (enum bfd_architecture architecture,
1611 gdbarch_init_ftype *,
1612 gdbarch_dump_tdep_ftype *);
1615 /* Return a freshly allocated, NULL terminated, array of the valid
1616 architecture names. Since architectures are registered during the
1617 _initialize phase this function only returns useful information
1618 once initialization has been completed. */
1620 extern const char **gdbarch_printable_names (void);
1623 /* Helper function. Search the list of ARCHES for a GDBARCH that
1624 matches the information provided by INFO. */
1626 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1629 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1630 basic initialization using values obtained from the INFO and TDEP
1631 parameters. set_gdbarch_*() functions are called to complete the
1632 initialization of the object. */
1634 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1637 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1638 It is assumed that the caller freeds the ``struct
1641 extern void gdbarch_free (struct gdbarch *);
1644 /* Helper function. Allocate memory from the ``struct gdbarch''
1645 obstack. The memory is freed when the corresponding architecture
1648 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1649 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1650 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1652 /* Duplicate STRING, returning an equivalent string that's allocated on the
1653 obstack associated with GDBARCH. The string is freed when the corresponding
1654 architecture is also freed. */
1656 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1658 /* Helper function. Force an update of the current architecture.
1660 The actual architecture selected is determined by INFO, ``(gdb) set
1661 architecture'' et.al., the existing architecture and BFD's default
1662 architecture. INFO should be initialized to zero and then selected
1663 fields should be updated.
1665 Returns non-zero if the update succeeds. */
1667 extern int gdbarch_update_p (struct gdbarch_info info);
1670 /* Helper function. Find an architecture matching info.
1672 INFO should be initialized using gdbarch_info_init, relevant fields
1673 set, and then finished using gdbarch_info_fill.
1675 Returns the corresponding architecture, or NULL if no matching
1676 architecture was found. */
1678 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1681 /* Helper function. Set the target gdbarch to "gdbarch". */
1683 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1686 /* Register per-architecture data-pointer.
1688 Reserve space for a per-architecture data-pointer. An identifier
1689 for the reserved data-pointer is returned. That identifer should
1690 be saved in a local static variable.
1692 Memory for the per-architecture data shall be allocated using
1693 gdbarch_obstack_zalloc. That memory will be deleted when the
1694 corresponding architecture object is deleted.
1696 When a previously created architecture is re-selected, the
1697 per-architecture data-pointer for that previous architecture is
1698 restored. INIT() is not re-called.
1700 Multiple registrarants for any architecture are allowed (and
1701 strongly encouraged). */
1703 struct gdbarch_data;
1705 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1706 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1707 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1708 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1709 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1710 struct gdbarch_data *data,
1713 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1716 /* Set the dynamic target-system-dependent parameters (architecture,
1717 byte-order, ...) using information found in the BFD. */
1719 extern void set_gdbarch_from_file (bfd *);
1722 /* Initialize the current architecture to the "first" one we find on
1725 extern void initialize_current_architecture (void);
1727 /* gdbarch trace variable */
1728 extern unsigned int gdbarch_debug;
1730 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);