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, 2007
6 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;
56 /* The architecture associated with the connection to the target.
58 The architecture vector provides some information that is really
59 a property of the target: The layout of certain packets, for instance;
60 or the solib_ops vector. Etc. To differentiate architecture accesses
61 to per-target properties from per-thread/per-frame/per-objfile properties,
62 accesses to per-target properties should be made through target_gdbarch.
64 Eventually, when support for multiple targets is implemented in
65 GDB, this global should be made target-specific. */
66 extern struct gdbarch *target_gdbarch;
69 /* The following are pre-initialized by GDBARCH. */
71 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
72 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
74 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
75 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
77 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
78 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
80 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
81 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
83 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
84 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
87 /* The following are initialized by the target dependent code. */
89 /* The bit byte-order has to do just with numbering of bits in debugging symbols
90 and such. Conceptually, it's quite separate from byte/word byte order. */
92 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
93 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
95 /* Number of bits in a char or unsigned char for the target machine.
96 Just like CHAR_BIT in <limits.h> but describes the target machine.
97 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
99 Number of bits in a short or unsigned short for the target machine. */
101 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
102 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
104 /* Number of bits in an int or unsigned int for the target machine. */
106 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
107 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
109 /* Number of bits in a long or unsigned long for the target machine. */
111 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
112 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
114 /* Number of bits in a long long or unsigned long long for the target
117 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
118 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
120 /* The ABI default bit-size and format for "float", "double", and "long
121 double". These bit/format pairs should eventually be combined into
122 a single object. For the moment, just initialize them as a pair.
123 Each format describes both the big and little endian layouts (if
126 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
127 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
129 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
130 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
132 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
133 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
135 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
136 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
138 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
139 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
141 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
142 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
144 /* For most targets, a pointer on the target and its representation as an
145 address in GDB have the same size and "look the same". For such a
146 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
147 / addr_bit will be set from it.
149 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
150 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
153 ptr_bit is the size of a pointer on the target */
155 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
156 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
158 /* addr_bit is the size of a target address as represented in gdb */
160 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
161 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
163 /* One if `char' acts like `signed char', zero if `unsigned char'. */
165 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
166 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
168 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
170 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
171 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
172 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
174 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
176 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
177 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
178 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
180 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
181 whole scheme for dealing with "frames" and "frame pointers" needs a
182 serious shakedown. */
184 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
185 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
186 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
188 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
190 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
191 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
192 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
194 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
196 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
197 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
198 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
200 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
201 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
203 /* This macro gives the number of pseudo-registers that live in the
204 register namespace but do not get fetched or stored on the target.
205 These pseudo-registers may be aliases for other registers,
206 combinations of other registers, or they may be computed by GDB. */
208 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
209 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
211 /* GDB's standard (or well known) register numbers. These can map onto
212 a real register or a pseudo (computed) register or not be defined at
214 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
216 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
217 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
219 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
220 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
222 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
223 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
225 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
226 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
228 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
230 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
231 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
232 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
234 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
236 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
237 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
238 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
240 /* Convert from an sdb register number to an internal gdb register number. */
242 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
243 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
244 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
246 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
248 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
249 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
250 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
252 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
253 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
254 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
256 /* Return the type of a register specified by the architecture. Only
257 the register cache should call this function directly; others should
258 use "register_type". */
260 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
262 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
263 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
264 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
266 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
268 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
270 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
271 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
272 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
274 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
275 deprecated_fp_regnum. */
277 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
278 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
280 /* See gdbint.texinfo. See infcall.c. */
282 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
284 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);
285 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);
286 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
288 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
289 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
291 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
293 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);
294 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);
295 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
297 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
298 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
299 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
301 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
303 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
304 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
305 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
307 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
309 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
310 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
311 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
313 /* MAP a GDB RAW register number onto a simulator register number. See
314 also include/...-sim.h. */
316 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
317 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
318 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
320 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
321 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
322 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
324 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
325 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
326 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
328 /* setjmp/longjmp support. */
330 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
332 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
333 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
334 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
336 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
337 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
339 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
340 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
341 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
343 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
344 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
345 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
347 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
348 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
349 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
351 /* Construct a value representing the contents of register REGNUM in
352 frame FRAME, interpreted as type TYPE. The routine needs to
353 allocate and return a struct value with all value attributes
354 (but not the value contents) filled in. */
356 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
357 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
358 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
360 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
361 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
362 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
364 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
365 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
366 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
368 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
370 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
371 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
372 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
374 /* Return the return-value convention that will be used by FUNCTYPE
375 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
376 case the return convention is computed based only on VALTYPE.
378 If READBUF is not NULL, extract the return value and save it in this buffer.
380 If WRITEBUF is not NULL, it contains a return value which will be
381 stored into the appropriate register. This can be used when we want
382 to force the value returned by a function (see the "return" command
385 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
387 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);
388 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);
389 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
391 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
392 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
393 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
395 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
397 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
398 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
399 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
401 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
402 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
403 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
405 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
406 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
407 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
409 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
411 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
412 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
413 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
415 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
416 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
417 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
419 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
420 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
421 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
423 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
424 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
426 /* A function can be addressed by either it's "pointer" (possibly a
427 descriptor address) or "entry point" (first executable instruction).
428 The method "convert_from_func_ptr_addr" converting the former to the
429 latter. gdbarch_deprecated_function_start_offset is being used to implement
430 a simplified subset of that functionality - the function's address
431 corresponds to the "function pointer" and the function's start
432 corresponds to the "function entry point" - and hence is redundant. */
434 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
435 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
437 /* Return the remote protocol register number associated with this
438 register. Normally the identity mapping. */
440 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
441 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
442 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
444 /* Fetch the target specific address used to represent a load module. */
446 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
448 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
449 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
450 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
452 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
453 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
455 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
457 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
458 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
459 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
461 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
463 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
464 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
465 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
467 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
468 frame-base. Enable frame-base before frame-unwind. */
470 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
472 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
473 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
474 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
476 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
478 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
479 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
480 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
482 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
483 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
484 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
486 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
487 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
489 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
490 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
491 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
493 /* On some machines there are bits in addresses which are not really
494 part of the address, but are used by the kernel, the hardware, etc.
495 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
496 we get a "real" address such as one would find in a symbol table.
497 This is used only for addresses of instructions, and even then I'm
498 not sure it's used in all contexts. It exists to deal with there
499 being a few stray bits in the PC which would mislead us, not as some
500 sort of generic thing to handle alignment or segmentation (it's
501 possible it should be in TARGET_READ_PC instead). */
503 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
504 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
505 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
507 /* It is not at all clear why gdbarch_smash_text_address is not folded into
508 gdbarch_addr_bits_remove. */
510 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
511 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
512 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
514 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
515 indicates if the target needs software single step. An ISA method to
518 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
519 breakpoints using the breakpoint system instead of blatting memory directly
522 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
523 target can single step. If not, then implement single step using breakpoints.
525 A return value of 1 means that the software_single_step breakpoints
526 were inserted; 0 means they were not. */
528 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
530 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
531 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
532 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
534 /* Return non-zero if the processor is executing a delay slot and a
535 further single-step is needed before the instruction finishes. */
537 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
539 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
540 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
541 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
543 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
544 disassembler. Perhaps objdump can handle it? */
546 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
547 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
548 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
550 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
551 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
552 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
554 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
555 evaluates non-zero, this is the address where the debugger will place
556 a step-resume breakpoint to get us past the dynamic linker. */
558 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
559 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
560 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
562 /* Some systems also have trampoline code for returning from shared libs. */
564 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
565 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
566 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
568 /* A target might have problems with watchpoints as soon as the stack
569 frame of the current function has been destroyed. This mostly happens
570 as the first action in a funtion's epilogue. in_function_epilogue_p()
571 is defined to return a non-zero value if either the given addr is one
572 instruction after the stack destroying instruction up to the trailing
573 return instruction or if we can figure out that the stack frame has
574 already been invalidated regardless of the value of addr. Targets
575 which don't suffer from that problem could just let this functionality
578 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
579 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
580 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
582 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
583 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
584 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
586 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
587 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
588 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
590 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
591 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
593 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
594 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
596 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
598 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
599 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
600 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
602 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
604 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
605 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
606 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);
608 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
610 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
611 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
612 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);
614 /* Is a register in a group */
616 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
617 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
618 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
620 /* Fetch the pointer to the ith function argument. */
622 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
624 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
625 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
626 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
628 /* Return the appropriate register set for a core file section with
629 name SECT_NAME and size SECT_SIZE. */
631 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
633 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
634 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
635 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
637 /* When creating core dumps, some systems encode the PID in addition
638 to the LWP id in core file register section names. In those cases, the
639 "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
640 is set to true for such architectures; false if "XXX" represents an LWP
641 or thread id with no special encoding. */
643 extern int gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch);
644 extern void set_gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch, int core_reg_section_encodes_pid);
646 /* Supported register notes in a core file. */
648 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
649 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
651 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
652 core file into buffer READBUF with length LEN. */
654 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
656 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
657 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
658 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
660 /* How the core_stratum layer converts a PTID from a core file to a
663 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
665 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
666 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
667 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
669 /* BFD target to use when generating a core file. */
671 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
673 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
674 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
676 /* If the elements of C++ vtables are in-place function descriptors rather
677 than normal function pointers (which may point to code or a descriptor),
680 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
681 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
683 /* Set if the least significant bit of the delta is used instead of the least
684 significant bit of the pfn for pointers to virtual member functions. */
686 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
687 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
689 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
691 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
693 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
694 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
695 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
697 /* The maximum length of an instruction on this architecture. */
699 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
701 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
702 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
704 /* Copy the instruction at FROM to TO, and make any adjustments
705 necessary to single-step it at that address.
707 REGS holds the state the thread's registers will have before
708 executing the copied instruction; the PC in REGS will refer to FROM,
709 not the copy at TO. The caller should update it to point at TO later.
711 Return a pointer to data of the architecture's choice to be passed
712 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
713 the instruction's effects have been completely simulated, with the
714 resulting state written back to REGS.
716 For a general explanation of displaced stepping and how GDB uses it,
717 see the comments in infrun.c.
719 The TO area is only guaranteed to have space for
720 gdbarch_max_insn_length (arch) bytes, so this function must not
721 write more bytes than that to that area.
723 If you do not provide this function, GDB assumes that the
724 architecture does not support displaced stepping.
726 If your architecture doesn't need to adjust instructions before
727 single-stepping them, consider using simple_displaced_step_copy_insn
730 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
732 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
733 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
734 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
736 /* Fix up the state resulting from successfully single-stepping a
737 displaced instruction, to give the result we would have gotten from
738 stepping the instruction in its original location.
740 REGS is the register state resulting from single-stepping the
741 displaced instruction.
743 CLOSURE is the result from the matching call to
744 gdbarch_displaced_step_copy_insn.
746 If you provide gdbarch_displaced_step_copy_insn.but not this
747 function, then GDB assumes that no fixup is needed after
748 single-stepping the instruction.
750 For a general explanation of displaced stepping and how GDB uses it,
751 see the comments in infrun.c. */
753 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
755 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
756 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
757 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
759 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
761 If you provide gdbarch_displaced_step_copy_insn, you must provide
762 this function as well.
764 If your architecture uses closures that don't need to be freed, then
765 you can use simple_displaced_step_free_closure here.
767 For a general explanation of displaced stepping and how GDB uses it,
768 see the comments in infrun.c. */
770 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
771 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
772 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
774 /* Return the address of an appropriate place to put displaced
775 instructions while we step over them. There need only be one such
776 place, since we're only stepping one thread over a breakpoint at a
779 For a general explanation of displaced stepping and how GDB uses it,
780 see the comments in infrun.c. */
782 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
783 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
784 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
786 /* Refresh overlay mapped state for section OSECT. */
788 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
790 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
791 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
792 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
794 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
796 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
797 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
798 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
800 /* Handle special encoding of static variables in stabs debug info. */
802 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
804 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
805 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
806 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
808 /* Set if the address in N_SO or N_FUN stabs may be zero. */
810 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
811 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
813 /* Parse the instruction at ADDR storing in the record execution log
814 the registers REGCACHE and memory ranges that will be affected when
815 the instruction executes, along with their current values.
816 Return -1 if something goes wrong, 0 otherwise. */
818 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
820 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
821 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
822 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
824 /* Signal translation: translate inferior's signal (host's) number into
825 GDB's representation. */
827 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
828 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
829 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
831 /* Signal translation: translate GDB's signal number into inferior's host
834 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
835 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
836 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
838 /* Extra signal info inspection.
840 Return a type suitable to inspect extra signal information. */
842 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
844 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
845 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
846 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
848 /* Record architecture-specific information from the symbol table. */
850 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
852 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
853 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
854 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
856 /* True if the list of shared libraries is one and only for all
857 processes, as opposed to a list of shared libraries per inferior.
858 This usually means that all processes, although may or may not share
859 an address space, will see the same set of symbols at the same
862 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
863 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
865 /* On some targets, even though each inferior has its own private
866 address space, the debug interface takes care of making breakpoints
867 visible to all address spaces automatically. For such cases,
868 this property should be set to true. */
870 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
871 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
873 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
876 /* Mechanism for co-ordinating the selection of a specific
879 GDB targets (*-tdep.c) can register an interest in a specific
880 architecture. Other GDB components can register a need to maintain
881 per-architecture data.
883 The mechanisms below ensures that there is only a loose connection
884 between the set-architecture command and the various GDB
885 components. Each component can independently register their need
886 to maintain architecture specific data with gdbarch.
890 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
893 The more traditional mega-struct containing architecture specific
894 data for all the various GDB components was also considered. Since
895 GDB is built from a variable number of (fairly independent)
896 components it was determined that the global aproach was not
900 /* Register a new architectural family with GDB.
902 Register support for the specified ARCHITECTURE with GDB. When
903 gdbarch determines that the specified architecture has been
904 selected, the corresponding INIT function is called.
908 The INIT function takes two parameters: INFO which contains the
909 information available to gdbarch about the (possibly new)
910 architecture; ARCHES which is a list of the previously created
911 ``struct gdbarch'' for this architecture.
913 The INFO parameter is, as far as possible, be pre-initialized with
914 information obtained from INFO.ABFD or the global defaults.
916 The ARCHES parameter is a linked list (sorted most recently used)
917 of all the previously created architures for this architecture
918 family. The (possibly NULL) ARCHES->gdbarch can used to access
919 values from the previously selected architecture for this
922 The INIT function shall return any of: NULL - indicating that it
923 doesn't recognize the selected architecture; an existing ``struct
924 gdbarch'' from the ARCHES list - indicating that the new
925 architecture is just a synonym for an earlier architecture (see
926 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
927 - that describes the selected architecture (see gdbarch_alloc()).
929 The DUMP_TDEP function shall print out all target specific values.
930 Care should be taken to ensure that the function works in both the
931 multi-arch and non- multi-arch cases. */
935 struct gdbarch *gdbarch;
936 struct gdbarch_list *next;
941 /* Use default: NULL (ZERO). */
942 const struct bfd_arch_info *bfd_arch_info;
944 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
947 int byte_order_for_code;
949 /* Use default: NULL (ZERO). */
952 /* Use default: NULL (ZERO). */
953 struct gdbarch_tdep_info *tdep_info;
955 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
956 enum gdb_osabi osabi;
958 /* Use default: NULL (ZERO). */
959 const struct target_desc *target_desc;
962 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
963 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
965 /* DEPRECATED - use gdbarch_register() */
966 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
968 extern void gdbarch_register (enum bfd_architecture architecture,
969 gdbarch_init_ftype *,
970 gdbarch_dump_tdep_ftype *);
973 /* Return a freshly allocated, NULL terminated, array of the valid
974 architecture names. Since architectures are registered during the
975 _initialize phase this function only returns useful information
976 once initialization has been completed. */
978 extern const char **gdbarch_printable_names (void);
981 /* Helper function. Search the list of ARCHES for a GDBARCH that
982 matches the information provided by INFO. */
984 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
987 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
988 basic initialization using values obtained from the INFO and TDEP
989 parameters. set_gdbarch_*() functions are called to complete the
990 initialization of the object. */
992 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
995 /* Helper function. Free a partially-constructed ``struct gdbarch''.
996 It is assumed that the caller freeds the ``struct
999 extern void gdbarch_free (struct gdbarch *);
1002 /* Helper function. Allocate memory from the ``struct gdbarch''
1003 obstack. The memory is freed when the corresponding architecture
1006 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1007 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1008 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1011 /* Helper function. Force an update of the current architecture.
1013 The actual architecture selected is determined by INFO, ``(gdb) set
1014 architecture'' et.al., the existing architecture and BFD's default
1015 architecture. INFO should be initialized to zero and then selected
1016 fields should be updated.
1018 Returns non-zero if the update succeeds */
1020 extern int gdbarch_update_p (struct gdbarch_info info);
1023 /* Helper function. Find an architecture matching info.
1025 INFO should be initialized using gdbarch_info_init, relevant fields
1026 set, and then finished using gdbarch_info_fill.
1028 Returns the corresponding architecture, or NULL if no matching
1029 architecture was found. */
1031 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1034 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1036 FIXME: kettenis/20031124: Of the functions that follow, only
1037 gdbarch_from_bfd is supposed to survive. The others will
1038 dissappear since in the future GDB will (hopefully) be truly
1039 multi-arch. However, for now we're still stuck with the concept of
1040 a single active architecture. */
1042 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1045 /* Register per-architecture data-pointer.
1047 Reserve space for a per-architecture data-pointer. An identifier
1048 for the reserved data-pointer is returned. That identifer should
1049 be saved in a local static variable.
1051 Memory for the per-architecture data shall be allocated using
1052 gdbarch_obstack_zalloc. That memory will be deleted when the
1053 corresponding architecture object is deleted.
1055 When a previously created architecture is re-selected, the
1056 per-architecture data-pointer for that previous architecture is
1057 restored. INIT() is not re-called.
1059 Multiple registrarants for any architecture are allowed (and
1060 strongly encouraged). */
1062 struct gdbarch_data;
1064 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1065 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1066 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1067 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1068 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1069 struct gdbarch_data *data,
1072 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1075 /* Set the dynamic target-system-dependent parameters (architecture,
1076 byte-order, ...) using information found in the BFD */
1078 extern void set_gdbarch_from_file (bfd *);
1081 /* Initialize the current architecture to the "first" one we find on
1084 extern void initialize_current_architecture (void);
1086 /* gdbarch trace variable */
1087 extern int gdbarch_debug;
1089 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);