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;
58 /* The architecture associated with the connection to the target.
60 The architecture vector provides some information that is really
61 a property of the target: The layout of certain packets, for instance;
62 or the solib_ops vector. Etc. To differentiate architecture accesses
63 to per-target properties from per-thread/per-frame/per-objfile properties,
64 accesses to per-target properties should be made through target_gdbarch.
66 Eventually, when support for multiple targets is implemented in
67 GDB, this global should be made target-specific. */
68 extern struct gdbarch *target_gdbarch;
71 /* The following are pre-initialized by GDBARCH. */
73 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
74 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
76 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
77 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
79 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
80 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
82 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
83 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
85 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
86 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
89 /* The following are initialized by the target dependent code. */
91 /* The bit byte-order has to do just with numbering of bits in debugging symbols
92 and such. Conceptually, it's quite separate from byte/word byte order. */
94 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
95 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
97 /* Number of bits in a char or unsigned char for the target machine.
98 Just like CHAR_BIT in <limits.h> but describes the target machine.
99 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
101 Number of bits in a short or unsigned short for the target machine. */
103 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
104 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
106 /* Number of bits in an int or unsigned int for the target machine. */
108 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
109 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
111 /* Number of bits in a long or unsigned long for the target machine. */
113 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
114 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
116 /* Number of bits in a long long or unsigned long long for the target
119 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
120 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
122 /* The ABI default bit-size and format for "half", "float", "double", and
123 "long double". These bit/format pairs should eventually be combined
124 into a single object. For the moment, just initialize them as a pair.
125 Each format describes both the big and little endian layouts (if
128 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
129 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
131 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
132 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
134 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
135 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
137 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
138 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
140 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
141 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
143 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
144 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
146 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
147 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
149 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
150 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
152 /* For most targets, a pointer on the target and its representation as an
153 address in GDB have the same size and "look the same". For such a
154 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
155 / addr_bit will be set from it.
157 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
158 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
159 gdbarch_address_to_pointer as well.
161 ptr_bit is the size of a pointer on the target */
163 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
164 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
166 /* addr_bit is the size of a target address as represented in gdb */
168 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
169 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
171 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
172 info. For .debug_frame FDEs, this is supposed to be the target address
173 size from the associated CU header, and which is equivalent to the
174 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
175 Unfortunately there is no good way to determine this value. Therefore
176 dwarf2_addr_size simply defaults to the target pointer size.
178 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
179 defined using the target's pointer size so far.
181 Note that dwarf2_addr_size only needs to be redefined by a target if the
182 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
183 and if Dwarf versions < 4 need to be supported. */
185 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
186 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
188 /* One if `char' acts like `signed char', zero if `unsigned char'. */
190 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
191 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
193 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
195 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
196 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
197 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
199 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
201 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
202 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
203 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
205 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
206 whole scheme for dealing with "frames" and "frame pointers" needs a
207 serious shakedown. */
209 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
210 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
211 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
213 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
215 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
216 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
217 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
219 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
221 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
222 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
223 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
225 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
226 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
228 /* This macro gives the number of pseudo-registers that live in the
229 register namespace but do not get fetched or stored on the target.
230 These pseudo-registers may be aliases for other registers,
231 combinations of other registers, or they may be computed by GDB. */
233 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
234 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
236 /* Assemble agent expression bytecode to collect pseudo-register REG.
237 Return -1 if something goes wrong, 0 otherwise. */
239 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
241 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
242 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
243 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
245 /* Assemble agent expression bytecode to push the value of pseudo-register
246 REG on the interpreter stack.
247 Return -1 if something goes wrong, 0 otherwise. */
249 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
251 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
252 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
253 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
255 /* GDB's standard (or well known) register numbers. These can map onto
256 a real register or a pseudo (computed) register or not be defined at
258 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
260 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
261 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
263 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
264 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
266 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
267 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
269 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
270 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
272 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
274 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
275 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
276 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
278 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
280 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
281 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
282 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
284 /* Convert from an sdb register number to an internal gdb register number. */
286 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
287 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
288 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
290 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
292 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
293 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
294 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
296 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
297 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
298 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
300 /* Return the type of a register specified by the architecture. Only
301 the register cache should call this function directly; others should
302 use "register_type". */
304 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
306 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
307 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
308 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
310 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
312 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
314 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
315 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
316 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
318 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
319 deprecated_fp_regnum. */
321 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
322 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
324 /* See gdbint.texinfo. See infcall.c. */
326 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
328 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);
329 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);
330 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
332 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
333 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
335 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
337 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);
338 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);
339 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
341 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
342 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
343 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
345 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
347 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
348 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
349 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
351 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
353 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
354 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
355 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
357 /* MAP a GDB RAW register number onto a simulator register number. See
358 also include/...-sim.h. */
360 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
361 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
362 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
364 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
365 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
366 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
368 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
369 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
370 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
372 /* setjmp/longjmp support. */
374 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
376 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
377 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
378 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
380 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
381 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
383 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
384 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
385 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
387 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
388 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
389 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
391 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
392 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
393 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
395 /* Construct a value representing the contents of register REGNUM in
396 frame FRAME, interpreted as type TYPE. The routine needs to
397 allocate and return a struct value with all value attributes
398 (but not the value contents) filled in. */
400 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
401 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
402 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
404 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
405 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
406 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
408 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
409 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
410 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
412 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
414 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
415 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
416 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
418 /* Return the return-value convention that will be used by FUNCTYPE
419 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
420 case the return convention is computed based only on VALTYPE.
422 If READBUF is not NULL, extract the return value and save it in this buffer.
424 If WRITEBUF is not NULL, it contains a return value which will be
425 stored into the appropriate register. This can be used when we want
426 to force the value returned by a function (see the "return" command
429 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
431 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);
432 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);
433 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
435 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
436 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
437 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
439 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
441 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
442 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
443 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
445 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
446 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
447 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
449 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
450 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
451 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
453 /* Return the adjusted address and kind to use for Z0/Z1 packets.
454 KIND is usually the memory length of the breakpoint, but may have a
455 different target-specific meaning. */
457 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
458 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
459 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
461 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
463 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
464 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
465 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
467 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
468 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
469 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
471 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
472 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
473 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
475 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
476 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
478 /* A function can be addressed by either it's "pointer" (possibly a
479 descriptor address) or "entry point" (first executable instruction).
480 The method "convert_from_func_ptr_addr" converting the former to the
481 latter. gdbarch_deprecated_function_start_offset is being used to implement
482 a simplified subset of that functionality - the function's address
483 corresponds to the "function pointer" and the function's start
484 corresponds to the "function entry point" - and hence is redundant. */
486 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
487 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
489 /* Return the remote protocol register number associated with this
490 register. Normally the identity mapping. */
492 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
493 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
494 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
496 /* Fetch the target specific address used to represent a load module. */
498 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
500 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
501 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
502 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
504 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
505 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
507 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
509 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
510 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
511 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
513 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
515 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
516 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
517 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
519 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
520 frame-base. Enable frame-base before frame-unwind. */
522 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
524 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
525 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
526 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
528 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
530 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
531 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
532 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
534 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
535 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
536 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
538 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
539 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
541 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
542 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
543 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
545 /* On some machines there are bits in addresses which are not really
546 part of the address, but are used by the kernel, the hardware, etc.
547 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
548 we get a "real" address such as one would find in a symbol table.
549 This is used only for addresses of instructions, and even then I'm
550 not sure it's used in all contexts. It exists to deal with there
551 being a few stray bits in the PC which would mislead us, not as some
552 sort of generic thing to handle alignment or segmentation (it's
553 possible it should be in TARGET_READ_PC instead). */
555 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
556 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
557 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
559 /* It is not at all clear why gdbarch_smash_text_address is not folded into
560 gdbarch_addr_bits_remove. */
562 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
563 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
564 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
566 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
567 indicates if the target needs software single step. An ISA method to
570 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
571 breakpoints using the breakpoint system instead of blatting memory directly
574 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
575 target can single step. If not, then implement single step using breakpoints.
577 A return value of 1 means that the software_single_step breakpoints
578 were inserted; 0 means they were not. */
580 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
582 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
583 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
584 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
586 /* Return non-zero if the processor is executing a delay slot and a
587 further single-step is needed before the instruction finishes. */
589 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
591 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
592 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
593 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
595 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
596 disassembler. Perhaps objdump can handle it? */
598 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
599 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
600 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
602 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
603 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
604 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
606 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
607 evaluates non-zero, this is the address where the debugger will place
608 a step-resume breakpoint to get us past the dynamic linker. */
610 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
611 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
612 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
614 /* Some systems also have trampoline code for returning from shared libs. */
616 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
617 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
618 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
620 /* A target might have problems with watchpoints as soon as the stack
621 frame of the current function has been destroyed. This mostly happens
622 as the first action in a funtion's epilogue. in_function_epilogue_p()
623 is defined to return a non-zero value if either the given addr is one
624 instruction after the stack destroying instruction up to the trailing
625 return instruction or if we can figure out that the stack frame has
626 already been invalidated regardless of the value of addr. Targets
627 which don't suffer from that problem could just let this functionality
630 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
631 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
632 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
634 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
635 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
636 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
638 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
639 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
640 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
642 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
643 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
645 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
646 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
648 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
650 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
651 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
652 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
654 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
656 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
657 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
658 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);
660 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
662 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
663 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
664 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);
666 /* Is a register in a group */
668 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
669 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
670 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
672 /* Fetch the pointer to the ith function argument. */
674 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
676 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
677 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
678 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
680 /* Return the appropriate register set for a core file section with
681 name SECT_NAME and size SECT_SIZE. */
683 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
685 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
686 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
687 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
689 /* Supported register notes in a core file. */
691 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
692 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
694 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
695 core file into buffer READBUF with length LEN. */
697 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
699 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
700 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
701 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
703 /* How the core target converts a PTID from a core file to a string. */
705 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
707 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
708 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
709 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
711 /* BFD target to use when generating a core file. */
713 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
715 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
716 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
718 /* If the elements of C++ vtables are in-place function descriptors rather
719 than normal function pointers (which may point to code or a descriptor),
722 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
723 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
725 /* Set if the least significant bit of the delta is used instead of the least
726 significant bit of the pfn for pointers to virtual member functions. */
728 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
729 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
731 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
733 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
735 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
736 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
737 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
739 /* The maximum length of an instruction on this architecture. */
741 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
743 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
744 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
746 /* Copy the instruction at FROM to TO, and make any adjustments
747 necessary to single-step it at that address.
749 REGS holds the state the thread's registers will have before
750 executing the copied instruction; the PC in REGS will refer to FROM,
751 not the copy at TO. The caller should update it to point at TO later.
753 Return a pointer to data of the architecture's choice to be passed
754 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
755 the instruction's effects have been completely simulated, with the
756 resulting state written back to REGS.
758 For a general explanation of displaced stepping and how GDB uses it,
759 see the comments in infrun.c.
761 The TO area is only guaranteed to have space for
762 gdbarch_max_insn_length (arch) bytes, so this function must not
763 write more bytes than that to that area.
765 If you do not provide this function, GDB assumes that the
766 architecture does not support displaced stepping.
768 If your architecture doesn't need to adjust instructions before
769 single-stepping them, consider using simple_displaced_step_copy_insn
772 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
774 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
775 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
776 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
778 /* Return true if GDB should use hardware single-stepping to execute
779 the displaced instruction identified by CLOSURE. If false,
780 GDB will simply restart execution at the displaced instruction
781 location, and it is up to the target to ensure GDB will receive
782 control again (e.g. by placing a software breakpoint instruction
783 into the displaced instruction buffer).
785 The default implementation returns false on all targets that
786 provide a gdbarch_software_single_step routine, and true otherwise. */
788 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
789 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
790 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
792 /* Fix up the state resulting from successfully single-stepping a
793 displaced instruction, to give the result we would have gotten from
794 stepping the instruction in its original location.
796 REGS is the register state resulting from single-stepping the
797 displaced instruction.
799 CLOSURE is the result from the matching call to
800 gdbarch_displaced_step_copy_insn.
802 If you provide gdbarch_displaced_step_copy_insn.but not this
803 function, then GDB assumes that no fixup is needed after
804 single-stepping the instruction.
806 For a general explanation of displaced stepping and how GDB uses it,
807 see the comments in infrun.c. */
809 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
811 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
812 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
813 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
815 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
817 If you provide gdbarch_displaced_step_copy_insn, you must provide
818 this function as well.
820 If your architecture uses closures that don't need to be freed, then
821 you can use simple_displaced_step_free_closure here.
823 For a general explanation of displaced stepping and how GDB uses it,
824 see the comments in infrun.c. */
826 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
827 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
828 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
830 /* Return the address of an appropriate place to put displaced
831 instructions while we step over them. There need only be one such
832 place, since we're only stepping one thread over a breakpoint at a
835 For a general explanation of displaced stepping and how GDB uses it,
836 see the comments in infrun.c. */
838 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
839 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
840 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
842 /* Relocate an instruction to execute at a different address. OLDLOC
843 is the address in the inferior memory where the instruction to
844 relocate is currently at. On input, TO points to the destination
845 where we want the instruction to be copied (and possibly adjusted)
846 to. On output, it points to one past the end of the resulting
847 instruction(s). The effect of executing the instruction at TO shall
848 be the same as if executing it at FROM. For example, call
849 instructions that implicitly push the return address on the stack
850 should be adjusted to return to the instruction after OLDLOC;
851 relative branches, and other PC-relative instructions need the
852 offset adjusted; etc. */
854 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
856 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
857 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
858 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
860 /* Refresh overlay mapped state for section OSECT. */
862 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
864 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
865 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
866 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
868 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
870 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
871 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
872 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
874 /* Handle special encoding of static variables in stabs debug info. */
876 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
878 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
879 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
880 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
882 /* Set if the address in N_SO or N_FUN stabs may be zero. */
884 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
885 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
887 /* Parse the instruction at ADDR storing in the record execution log
888 the registers REGCACHE and memory ranges that will be affected when
889 the instruction executes, along with their current values.
890 Return -1 if something goes wrong, 0 otherwise. */
892 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
894 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
895 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
896 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
898 /* Save process state after a signal.
899 Return -1 if something goes wrong, 0 otherwise. */
901 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
903 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
904 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
905 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
907 /* Signal translation: translate inferior's signal (host's) number into
908 GDB's representation. */
910 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
911 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
912 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
914 /* Signal translation: translate GDB's signal number into inferior's host
917 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
918 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
919 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
921 /* Extra signal info inspection.
923 Return a type suitable to inspect extra signal information. */
925 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
927 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
928 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
929 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
931 /* Record architecture-specific information from the symbol table. */
933 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
935 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
936 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
937 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
939 /* Function for the 'catch syscall' feature.
940 Get architecture-specific system calls information from registers. */
942 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
944 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
945 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
946 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
948 /* True if the list of shared libraries is one and only for all
949 processes, as opposed to a list of shared libraries per inferior.
950 This usually means that all processes, although may or may not share
951 an address space, will see the same set of symbols at the same
954 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
955 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
957 /* On some targets, even though each inferior has its own private
958 address space, the debug interface takes care of making breakpoints
959 visible to all address spaces automatically. For such cases,
960 this property should be set to true. */
962 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
963 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
965 /* True if inferiors share an address space (e.g., uClinux). */
967 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
968 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
969 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
971 /* True if a fast tracepoint can be set at an address. */
973 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
974 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
975 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
977 /* Return the "auto" target charset. */
979 typedef const char * (gdbarch_auto_charset_ftype) (void);
980 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
981 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
983 /* Return the "auto" target wide charset. */
985 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
986 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
987 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
989 /* If non-empty, this is a file extension that will be opened in place
990 of the file extension reported by the shared library list.
992 This is most useful for toolchains that use a post-linker tool,
993 where the names of the files run on the target differ in extension
994 compared to the names of the files GDB should load for debug info. */
996 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
997 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
999 /* If true, the target OS has DOS-based file system semantics. That
1000 is, absolute paths include a drive name, and the backslash is
1001 considered a directory separator. */
1003 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1004 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1006 /* Definition for an unknown syscall, used basically in error-cases. */
1007 #define UNKNOWN_SYSCALL (-1)
1009 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1012 /* Mechanism for co-ordinating the selection of a specific
1015 GDB targets (*-tdep.c) can register an interest in a specific
1016 architecture. Other GDB components can register a need to maintain
1017 per-architecture data.
1019 The mechanisms below ensures that there is only a loose connection
1020 between the set-architecture command and the various GDB
1021 components. Each component can independently register their need
1022 to maintain architecture specific data with gdbarch.
1026 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1029 The more traditional mega-struct containing architecture specific
1030 data for all the various GDB components was also considered. Since
1031 GDB is built from a variable number of (fairly independent)
1032 components it was determined that the global aproach was not
1036 /* Register a new architectural family with GDB.
1038 Register support for the specified ARCHITECTURE with GDB. When
1039 gdbarch determines that the specified architecture has been
1040 selected, the corresponding INIT function is called.
1044 The INIT function takes two parameters: INFO which contains the
1045 information available to gdbarch about the (possibly new)
1046 architecture; ARCHES which is a list of the previously created
1047 ``struct gdbarch'' for this architecture.
1049 The INFO parameter is, as far as possible, be pre-initialized with
1050 information obtained from INFO.ABFD or the global defaults.
1052 The ARCHES parameter is a linked list (sorted most recently used)
1053 of all the previously created architures for this architecture
1054 family. The (possibly NULL) ARCHES->gdbarch can used to access
1055 values from the previously selected architecture for this
1056 architecture family.
1058 The INIT function shall return any of: NULL - indicating that it
1059 doesn't recognize the selected architecture; an existing ``struct
1060 gdbarch'' from the ARCHES list - indicating that the new
1061 architecture is just a synonym for an earlier architecture (see
1062 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1063 - that describes the selected architecture (see gdbarch_alloc()).
1065 The DUMP_TDEP function shall print out all target specific values.
1066 Care should be taken to ensure that the function works in both the
1067 multi-arch and non- multi-arch cases. */
1071 struct gdbarch *gdbarch;
1072 struct gdbarch_list *next;
1077 /* Use default: NULL (ZERO). */
1078 const struct bfd_arch_info *bfd_arch_info;
1080 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1083 int byte_order_for_code;
1085 /* Use default: NULL (ZERO). */
1088 /* Use default: NULL (ZERO). */
1089 struct gdbarch_tdep_info *tdep_info;
1091 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1092 enum gdb_osabi osabi;
1094 /* Use default: NULL (ZERO). */
1095 const struct target_desc *target_desc;
1098 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1099 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1101 /* DEPRECATED - use gdbarch_register() */
1102 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1104 extern void gdbarch_register (enum bfd_architecture architecture,
1105 gdbarch_init_ftype *,
1106 gdbarch_dump_tdep_ftype *);
1109 /* Return a freshly allocated, NULL terminated, array of the valid
1110 architecture names. Since architectures are registered during the
1111 _initialize phase this function only returns useful information
1112 once initialization has been completed. */
1114 extern const char **gdbarch_printable_names (void);
1117 /* Helper function. Search the list of ARCHES for a GDBARCH that
1118 matches the information provided by INFO. */
1120 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1123 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1124 basic initialization using values obtained from the INFO and TDEP
1125 parameters. set_gdbarch_*() functions are called to complete the
1126 initialization of the object. */
1128 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1131 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1132 It is assumed that the caller freeds the ``struct
1135 extern void gdbarch_free (struct gdbarch *);
1138 /* Helper function. Allocate memory from the ``struct gdbarch''
1139 obstack. The memory is freed when the corresponding architecture
1142 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1143 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1144 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1147 /* Helper function. Force an update of the current architecture.
1149 The actual architecture selected is determined by INFO, ``(gdb) set
1150 architecture'' et.al., the existing architecture and BFD's default
1151 architecture. INFO should be initialized to zero and then selected
1152 fields should be updated.
1154 Returns non-zero if the update succeeds */
1156 extern int gdbarch_update_p (struct gdbarch_info info);
1159 /* Helper function. Find an architecture matching info.
1161 INFO should be initialized using gdbarch_info_init, relevant fields
1162 set, and then finished using gdbarch_info_fill.
1164 Returns the corresponding architecture, or NULL if no matching
1165 architecture was found. */
1167 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1170 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1172 FIXME: kettenis/20031124: Of the functions that follow, only
1173 gdbarch_from_bfd is supposed to survive. The others will
1174 dissappear since in the future GDB will (hopefully) be truly
1175 multi-arch. However, for now we're still stuck with the concept of
1176 a single active architecture. */
1178 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1181 /* Register per-architecture data-pointer.
1183 Reserve space for a per-architecture data-pointer. An identifier
1184 for the reserved data-pointer is returned. That identifer should
1185 be saved in a local static variable.
1187 Memory for the per-architecture data shall be allocated using
1188 gdbarch_obstack_zalloc. That memory will be deleted when the
1189 corresponding architecture object is deleted.
1191 When a previously created architecture is re-selected, the
1192 per-architecture data-pointer for that previous architecture is
1193 restored. INIT() is not re-called.
1195 Multiple registrarants for any architecture are allowed (and
1196 strongly encouraged). */
1198 struct gdbarch_data;
1200 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1201 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1202 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1203 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1204 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1205 struct gdbarch_data *data,
1208 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1211 /* Set the dynamic target-system-dependent parameters (architecture,
1212 byte-order, ...) using information found in the BFD */
1214 extern void set_gdbarch_from_file (bfd *);
1217 /* Initialize the current architecture to the "first" one we find on
1220 extern void initialize_current_architecture (void);
1222 /* gdbarch trace variable */
1223 extern int gdbarch_debug;
1225 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);