1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
3 /* Dynamic architecture support for GDB, the GNU debugger.
5 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
6 2007, 2008, 2009 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
44 struct minimal_symbol;
48 struct disassemble_info;
51 struct bp_target_info;
53 struct displaced_step_closure;
54 struct core_regset_section;
59 /* The architecture associated with the connection to the target.
61 The architecture vector provides some information that is really
62 a property of the target: The layout of certain packets, for instance;
63 or the solib_ops vector. Etc. To differentiate architecture accesses
64 to per-target properties from per-thread/per-frame/per-objfile properties,
65 accesses to per-target properties should be made through target_gdbarch.
67 Eventually, when support for multiple targets is implemented in
68 GDB, this global should be made target-specific. */
69 extern struct gdbarch *target_gdbarch;
72 /* The following are pre-initialized by GDBARCH. */
74 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
75 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
77 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
78 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
80 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
81 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
83 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
84 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
86 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
87 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
90 /* The following are initialized by the target dependent code. */
92 /* The bit byte-order has to do just with numbering of bits in debugging symbols
93 and such. Conceptually, it's quite separate from byte/word byte order. */
95 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
96 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
98 /* Number of bits in a char or unsigned char for the target machine.
99 Just like CHAR_BIT in <limits.h> but describes the target machine.
100 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
102 Number of bits in a short or unsigned short for the target machine. */
104 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
105 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
107 /* Number of bits in an int or unsigned int for the target machine. */
109 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
110 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
112 /* Number of bits in a long or unsigned long for the target machine. */
114 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
115 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
117 /* Number of bits in a long long or unsigned long long for the target
120 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
121 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
123 /* Alignment of a long long or unsigned long long for the target
126 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
127 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
129 /* The ABI default bit-size and format for "half", "float", "double", and
130 "long double". These bit/format pairs should eventually be combined
131 into a single object. For the moment, just initialize them as a pair.
132 Each format describes both the big and little endian layouts (if
135 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
136 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
138 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
139 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
141 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
142 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
144 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
145 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
147 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
148 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
150 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
151 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
153 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
154 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
156 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
157 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
159 /* For most targets, a pointer on the target and its representation as an
160 address in GDB have the same size and "look the same". For such a
161 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
162 / addr_bit will be set from it.
164 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
165 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
166 gdbarch_address_to_pointer as well.
168 ptr_bit is the size of a pointer on the target */
170 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
171 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
173 /* addr_bit is the size of a target address as represented in gdb */
175 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
176 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
178 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
179 info. For .debug_frame FDEs, this is supposed to be the target address
180 size from the associated CU header, and which is equivalent to the
181 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
182 Unfortunately there is no good way to determine this value. Therefore
183 dwarf2_addr_size simply defaults to the target pointer size.
185 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
186 defined using the target's pointer size so far.
188 Note that dwarf2_addr_size only needs to be redefined by a target if the
189 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
190 and if Dwarf versions < 4 need to be supported. */
192 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
193 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
195 /* One if `char' acts like `signed char', zero if `unsigned char'. */
197 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
198 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
200 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
202 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
203 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
204 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
206 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
208 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
209 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
210 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
212 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
213 whole scheme for dealing with "frames" and "frame pointers" needs a
214 serious shakedown. */
216 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
217 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
218 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
220 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
222 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
223 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
224 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
226 /* Read a register into a new struct value. If the register is wholly
227 or partly unavailable, this should call mark_value_bytes_unavailable
228 as appropriate. If this is defined, then pseudo_register_read will
231 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
233 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
234 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
235 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
237 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
239 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
240 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
241 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
243 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
244 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
246 /* This macro gives the number of pseudo-registers that live in the
247 register namespace but do not get fetched or stored on the target.
248 These pseudo-registers may be aliases for other registers,
249 combinations of other registers, or they may be computed by GDB. */
251 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
252 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
254 /* Assemble agent expression bytecode to collect pseudo-register REG.
255 Return -1 if something goes wrong, 0 otherwise. */
257 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
259 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
260 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
261 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
263 /* Assemble agent expression bytecode to push the value of pseudo-register
264 REG on the interpreter stack.
265 Return -1 if something goes wrong, 0 otherwise. */
267 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
269 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
270 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
271 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
273 /* GDB's standard (or well known) register numbers. These can map onto
274 a real register or a pseudo (computed) register or not be defined at
276 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
278 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
279 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
281 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
282 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
284 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
285 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
287 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
288 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
290 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
292 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
293 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
294 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
296 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
298 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
299 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
300 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
302 /* Convert from an sdb register number to an internal gdb register number. */
304 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
305 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
306 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
308 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
310 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
311 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
312 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
314 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
315 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
316 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
318 /* Return the type of a register specified by the architecture. Only
319 the register cache should call this function directly; others should
320 use "register_type". */
322 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
324 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
325 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
326 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
328 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
330 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
332 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
333 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
334 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
336 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
337 deprecated_fp_regnum. */
339 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
340 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
342 /* See gdbint.texinfo. See infcall.c. */
344 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
346 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);
347 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);
348 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
350 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
351 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
353 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
355 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);
356 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);
357 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
359 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
360 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
361 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
363 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
365 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
366 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
367 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
369 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
371 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
372 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
373 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
375 /* MAP a GDB RAW register number onto a simulator register number. See
376 also include/...-sim.h. */
378 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
379 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
380 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
382 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
383 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
384 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
386 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
387 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
388 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
390 /* setjmp/longjmp support. */
392 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
394 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
395 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
396 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
398 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
399 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
401 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
402 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
403 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
405 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
406 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);
407 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
409 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
410 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
411 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
413 /* Construct a value representing the contents of register REGNUM in
414 frame FRAME, interpreted as type TYPE. The routine needs to
415 allocate and return a struct value with all value attributes
416 (but not the value contents) filled in. */
418 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
419 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
420 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
422 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
423 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
424 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
426 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
427 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
428 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
430 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
432 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
433 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
434 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
436 /* Return the return-value convention that will be used by FUNCTYPE
437 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
438 case the return convention is computed based only on VALTYPE.
440 If READBUF is not NULL, extract the return value and save it in this buffer.
442 If WRITEBUF is not NULL, it contains a return value which will be
443 stored into the appropriate register. This can be used when we want
444 to force the value returned by a function (see the "return" command
447 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
449 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
450 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
451 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
453 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
454 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
455 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
457 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
459 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
460 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
461 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
463 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
464 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
465 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
467 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
468 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
469 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
471 /* Return the adjusted address and kind to use for Z0/Z1 packets.
472 KIND is usually the memory length of the breakpoint, but may have a
473 different target-specific meaning. */
475 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
476 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
477 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
479 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
481 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
482 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
483 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
485 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
486 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
487 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
489 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
490 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
491 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
493 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
494 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
496 /* A function can be addressed by either it's "pointer" (possibly a
497 descriptor address) or "entry point" (first executable instruction).
498 The method "convert_from_func_ptr_addr" converting the former to the
499 latter. gdbarch_deprecated_function_start_offset is being used to implement
500 a simplified subset of that functionality - the function's address
501 corresponds to the "function pointer" and the function's start
502 corresponds to the "function entry point" - and hence is redundant. */
504 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
505 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
507 /* Return the remote protocol register number associated with this
508 register. Normally the identity mapping. */
510 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
511 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
512 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
514 /* Fetch the target specific address used to represent a load module. */
516 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
518 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
519 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
520 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
522 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
523 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
525 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
527 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
528 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
529 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
531 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
533 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
534 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
535 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
537 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
538 frame-base. Enable frame-base before frame-unwind. */
540 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
542 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
543 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
544 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
546 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
548 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
549 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
550 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
552 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
553 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
554 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
556 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
557 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
559 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
560 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
561 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
563 /* On some machines there are bits in addresses which are not really
564 part of the address, but are used by the kernel, the hardware, etc.
565 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
566 we get a "real" address such as one would find in a symbol table.
567 This is used only for addresses of instructions, and even then I'm
568 not sure it's used in all contexts. It exists to deal with there
569 being a few stray bits in the PC which would mislead us, not as some
570 sort of generic thing to handle alignment or segmentation (it's
571 possible it should be in TARGET_READ_PC instead). */
573 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
574 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
575 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
577 /* It is not at all clear why gdbarch_smash_text_address is not folded into
578 gdbarch_addr_bits_remove. */
580 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
581 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
582 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
584 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
585 indicates if the target needs software single step. An ISA method to
588 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
589 breakpoints using the breakpoint system instead of blatting memory directly
592 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
593 target can single step. If not, then implement single step using breakpoints.
595 A return value of 1 means that the software_single_step breakpoints
596 were inserted; 0 means they were not. */
598 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
600 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
601 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
602 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
604 /* Return non-zero if the processor is executing a delay slot and a
605 further single-step is needed before the instruction finishes. */
607 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
609 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
610 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
611 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
613 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
614 disassembler. Perhaps objdump can handle it? */
616 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
617 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
618 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
620 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
621 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
622 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
624 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
625 evaluates non-zero, this is the address where the debugger will place
626 a step-resume breakpoint to get us past the dynamic linker. */
628 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
629 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
630 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
632 /* Some systems also have trampoline code for returning from shared libs. */
634 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
635 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
636 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
638 /* A target might have problems with watchpoints as soon as the stack
639 frame of the current function has been destroyed. This mostly happens
640 as the first action in a funtion's epilogue. in_function_epilogue_p()
641 is defined to return a non-zero value if either the given addr is one
642 instruction after the stack destroying instruction up to the trailing
643 return instruction or if we can figure out that the stack frame has
644 already been invalidated regardless of the value of addr. Targets
645 which don't suffer from that problem could just let this functionality
648 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
649 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
650 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
652 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
653 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
654 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
656 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
657 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
658 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
660 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
661 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
663 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
664 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
666 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
668 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
669 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
670 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
672 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
674 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
675 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
676 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);
678 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
680 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
681 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
682 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);
684 /* Is a register in a group */
686 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
687 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
688 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
690 /* Fetch the pointer to the ith function argument. */
692 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
694 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
695 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
696 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
698 /* Return the appropriate register set for a core file section with
699 name SECT_NAME and size SECT_SIZE. */
701 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
703 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
704 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
705 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
707 /* Supported register notes in a core file. */
709 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
710 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
712 /* Create core file notes */
714 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
716 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
717 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
718 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
720 /* Find core file memory regions */
722 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
724 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
725 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
726 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
728 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
729 core file into buffer READBUF with length LEN. */
731 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
733 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
734 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
735 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
737 /* How the core target converts a PTID from a core file to a string. */
739 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
741 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
742 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
743 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
745 /* BFD target to use when generating a core file. */
747 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
749 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
750 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
752 /* If the elements of C++ vtables are in-place function descriptors rather
753 than normal function pointers (which may point to code or a descriptor),
756 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
757 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
759 /* Set if the least significant bit of the delta is used instead of the least
760 significant bit of the pfn for pointers to virtual member functions. */
762 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
763 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
765 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
767 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
769 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
770 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
771 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
773 /* The maximum length of an instruction on this architecture in bytes. */
775 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
777 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
778 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
780 /* Copy the instruction at FROM to TO, and make any adjustments
781 necessary to single-step it at that address.
783 REGS holds the state the thread's registers will have before
784 executing the copied instruction; the PC in REGS will refer to FROM,
785 not the copy at TO. The caller should update it to point at TO later.
787 Return a pointer to data of the architecture's choice to be passed
788 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
789 the instruction's effects have been completely simulated, with the
790 resulting state written back to REGS.
792 For a general explanation of displaced stepping and how GDB uses it,
793 see the comments in infrun.c.
795 The TO area is only guaranteed to have space for
796 gdbarch_max_insn_length (arch) bytes, so this function must not
797 write more bytes than that to that area.
799 If you do not provide this function, GDB assumes that the
800 architecture does not support displaced stepping.
802 If your architecture doesn't need to adjust instructions before
803 single-stepping them, consider using simple_displaced_step_copy_insn
806 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
808 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
809 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
810 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
812 /* Return true if GDB should use hardware single-stepping to execute
813 the displaced instruction identified by CLOSURE. If false,
814 GDB will simply restart execution at the displaced instruction
815 location, and it is up to the target to ensure GDB will receive
816 control again (e.g. by placing a software breakpoint instruction
817 into the displaced instruction buffer).
819 The default implementation returns false on all targets that
820 provide a gdbarch_software_single_step routine, and true otherwise. */
822 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
823 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
824 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
826 /* Fix up the state resulting from successfully single-stepping a
827 displaced instruction, to give the result we would have gotten from
828 stepping the instruction in its original location.
830 REGS is the register state resulting from single-stepping the
831 displaced instruction.
833 CLOSURE is the result from the matching call to
834 gdbarch_displaced_step_copy_insn.
836 If you provide gdbarch_displaced_step_copy_insn.but not this
837 function, then GDB assumes that no fixup is needed after
838 single-stepping the instruction.
840 For a general explanation of displaced stepping and how GDB uses it,
841 see the comments in infrun.c. */
843 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
845 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
846 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
847 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
849 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
851 If you provide gdbarch_displaced_step_copy_insn, you must provide
852 this function as well.
854 If your architecture uses closures that don't need to be freed, then
855 you can use simple_displaced_step_free_closure here.
857 For a general explanation of displaced stepping and how GDB uses it,
858 see the comments in infrun.c. */
860 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
861 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
862 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
864 /* Return the address of an appropriate place to put displaced
865 instructions while we step over them. There need only be one such
866 place, since we're only stepping one thread over a breakpoint at a
869 For a general explanation of displaced stepping and how GDB uses it,
870 see the comments in infrun.c. */
872 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
873 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
874 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
876 /* Relocate an instruction to execute at a different address. OLDLOC
877 is the address in the inferior memory where the instruction to
878 relocate is currently at. On input, TO points to the destination
879 where we want the instruction to be copied (and possibly adjusted)
880 to. On output, it points to one past the end of the resulting
881 instruction(s). The effect of executing the instruction at TO shall
882 be the same as if executing it at FROM. For example, call
883 instructions that implicitly push the return address on the stack
884 should be adjusted to return to the instruction after OLDLOC;
885 relative branches, and other PC-relative instructions need the
886 offset adjusted; etc. */
888 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
890 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
891 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
892 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
894 /* Refresh overlay mapped state for section OSECT. */
896 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
898 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
899 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
900 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
902 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
904 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
905 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
906 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
908 /* Handle special encoding of static variables in stabs debug info. */
910 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
912 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
913 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
914 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
916 /* Set if the address in N_SO or N_FUN stabs may be zero. */
918 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
919 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
921 /* Parse the instruction at ADDR storing in the record execution log
922 the registers REGCACHE and memory ranges that will be affected when
923 the instruction executes, along with their current values.
924 Return -1 if something goes wrong, 0 otherwise. */
926 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
928 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
929 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
930 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
932 /* Save process state after a signal.
933 Return -1 if something goes wrong, 0 otherwise. */
935 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
937 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
938 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
939 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
941 /* Signal translation: translate inferior's signal (host's) number into
942 GDB's representation. */
944 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
945 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
946 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
948 /* Signal translation: translate GDB's signal number into inferior's host
951 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
952 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
953 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
955 /* Extra signal info inspection.
957 Return a type suitable to inspect extra signal information. */
959 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
961 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
962 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
963 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
965 /* Record architecture-specific information from the symbol table. */
967 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
969 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
970 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
971 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
973 /* Function for the 'catch syscall' feature.
974 Get architecture-specific system calls information from registers. */
976 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
978 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
979 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
980 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
982 /* True if the list of shared libraries is one and only for all
983 processes, as opposed to a list of shared libraries per inferior.
984 This usually means that all processes, although may or may not share
985 an address space, will see the same set of symbols at the same
988 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
989 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
991 /* On some targets, even though each inferior has its own private
992 address space, the debug interface takes care of making breakpoints
993 visible to all address spaces automatically. For such cases,
994 this property should be set to true. */
996 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
997 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
999 /* True if inferiors share an address space (e.g., uClinux). */
1001 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1002 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1003 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1005 /* True if a fast tracepoint can be set at an address. */
1007 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1008 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1009 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1011 /* Return the "auto" target charset. */
1013 typedef const char * (gdbarch_auto_charset_ftype) (void);
1014 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1015 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1017 /* Return the "auto" target wide charset. */
1019 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1020 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1021 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1023 /* If non-empty, this is a file extension that will be opened in place
1024 of the file extension reported by the shared library list.
1026 This is most useful for toolchains that use a post-linker tool,
1027 where the names of the files run on the target differ in extension
1028 compared to the names of the files GDB should load for debug info. */
1030 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1031 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1033 /* If true, the target OS has DOS-based file system semantics. That
1034 is, absolute paths include a drive name, and the backslash is
1035 considered a directory separator. */
1037 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1038 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1040 /* Generate bytecodes to collect the return address in a frame.
1041 Since the bytecodes run on the target, possibly with GDB not even
1042 connected, the full unwinding machinery is not available, and
1043 typically this function will issue bytecodes for one or more likely
1044 places that the return address may be found. */
1046 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1047 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1048 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1050 /* Implement the "info proc" command. */
1052 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1054 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1055 extern void gdbarch_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1056 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1058 /* Definition for an unknown syscall, used basically in error-cases. */
1059 #define UNKNOWN_SYSCALL (-1)
1061 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1064 /* Mechanism for co-ordinating the selection of a specific
1067 GDB targets (*-tdep.c) can register an interest in a specific
1068 architecture. Other GDB components can register a need to maintain
1069 per-architecture data.
1071 The mechanisms below ensures that there is only a loose connection
1072 between the set-architecture command and the various GDB
1073 components. Each component can independently register their need
1074 to maintain architecture specific data with gdbarch.
1078 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1081 The more traditional mega-struct containing architecture specific
1082 data for all the various GDB components was also considered. Since
1083 GDB is built from a variable number of (fairly independent)
1084 components it was determined that the global aproach was not
1088 /* Register a new architectural family with GDB.
1090 Register support for the specified ARCHITECTURE with GDB. When
1091 gdbarch determines that the specified architecture has been
1092 selected, the corresponding INIT function is called.
1096 The INIT function takes two parameters: INFO which contains the
1097 information available to gdbarch about the (possibly new)
1098 architecture; ARCHES which is a list of the previously created
1099 ``struct gdbarch'' for this architecture.
1101 The INFO parameter is, as far as possible, be pre-initialized with
1102 information obtained from INFO.ABFD or the global defaults.
1104 The ARCHES parameter is a linked list (sorted most recently used)
1105 of all the previously created architures for this architecture
1106 family. The (possibly NULL) ARCHES->gdbarch can used to access
1107 values from the previously selected architecture for this
1108 architecture family.
1110 The INIT function shall return any of: NULL - indicating that it
1111 doesn't recognize the selected architecture; an existing ``struct
1112 gdbarch'' from the ARCHES list - indicating that the new
1113 architecture is just a synonym for an earlier architecture (see
1114 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1115 - that describes the selected architecture (see gdbarch_alloc()).
1117 The DUMP_TDEP function shall print out all target specific values.
1118 Care should be taken to ensure that the function works in both the
1119 multi-arch and non- multi-arch cases. */
1123 struct gdbarch *gdbarch;
1124 struct gdbarch_list *next;
1129 /* Use default: NULL (ZERO). */
1130 const struct bfd_arch_info *bfd_arch_info;
1132 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1135 int byte_order_for_code;
1137 /* Use default: NULL (ZERO). */
1140 /* Use default: NULL (ZERO). */
1141 struct gdbarch_tdep_info *tdep_info;
1143 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1144 enum gdb_osabi osabi;
1146 /* Use default: NULL (ZERO). */
1147 const struct target_desc *target_desc;
1150 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1151 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1153 /* DEPRECATED - use gdbarch_register() */
1154 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1156 extern void gdbarch_register (enum bfd_architecture architecture,
1157 gdbarch_init_ftype *,
1158 gdbarch_dump_tdep_ftype *);
1161 /* Return a freshly allocated, NULL terminated, array of the valid
1162 architecture names. Since architectures are registered during the
1163 _initialize phase this function only returns useful information
1164 once initialization has been completed. */
1166 extern const char **gdbarch_printable_names (void);
1169 /* Helper function. Search the list of ARCHES for a GDBARCH that
1170 matches the information provided by INFO. */
1172 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1175 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1176 basic initialization using values obtained from the INFO and TDEP
1177 parameters. set_gdbarch_*() functions are called to complete the
1178 initialization of the object. */
1180 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1183 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1184 It is assumed that the caller freeds the ``struct
1187 extern void gdbarch_free (struct gdbarch *);
1190 /* Helper function. Allocate memory from the ``struct gdbarch''
1191 obstack. The memory is freed when the corresponding architecture
1194 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1195 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1196 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1199 /* Helper function. Force an update of the current architecture.
1201 The actual architecture selected is determined by INFO, ``(gdb) set
1202 architecture'' et.al., the existing architecture and BFD's default
1203 architecture. INFO should be initialized to zero and then selected
1204 fields should be updated.
1206 Returns non-zero if the update succeeds. */
1208 extern int gdbarch_update_p (struct gdbarch_info info);
1211 /* Helper function. Find an architecture matching info.
1213 INFO should be initialized using gdbarch_info_init, relevant fields
1214 set, and then finished using gdbarch_info_fill.
1216 Returns the corresponding architecture, or NULL if no matching
1217 architecture was found. */
1219 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1222 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1224 FIXME: kettenis/20031124: Of the functions that follow, only
1225 gdbarch_from_bfd is supposed to survive. The others will
1226 dissappear since in the future GDB will (hopefully) be truly
1227 multi-arch. However, for now we're still stuck with the concept of
1228 a single active architecture. */
1230 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1233 /* Register per-architecture data-pointer.
1235 Reserve space for a per-architecture data-pointer. An identifier
1236 for the reserved data-pointer is returned. That identifer should
1237 be saved in a local static variable.
1239 Memory for the per-architecture data shall be allocated using
1240 gdbarch_obstack_zalloc. That memory will be deleted when the
1241 corresponding architecture object is deleted.
1243 When a previously created architecture is re-selected, the
1244 per-architecture data-pointer for that previous architecture is
1245 restored. INIT() is not re-called.
1247 Multiple registrarants for any architecture are allowed (and
1248 strongly encouraged). */
1250 struct gdbarch_data;
1252 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1253 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1254 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1255 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1256 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1257 struct gdbarch_data *data,
1260 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1263 /* Set the dynamic target-system-dependent parameters (architecture,
1264 byte-order, ...) using information found in the BFD. */
1266 extern void set_gdbarch_from_file (bfd *);
1269 /* Initialize the current architecture to the "first" one we find on
1272 extern void initialize_current_architecture (void);
1274 /* gdbarch trace variable */
1275 extern int gdbarch_debug;
1277 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);