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 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 2 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, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
25 /* This file was created with the aid of ``gdbarch.sh''.
27 The Bourne shell script ``gdbarch.sh'' creates the files
28 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
29 against the existing ``gdbarch.[hc]''. Any differences found
32 If editing this file, please also run gdbarch.sh and merge any
33 changes into that script. Conversely, when making sweeping changes
34 to this file, modifying gdbarch.sh and using its output may prove
46 struct minimal_symbol
;
50 struct disassemble_info
;
53 struct bp_target_info
;
56 extern struct gdbarch
*current_gdbarch
;
59 /* The following are pre-initialized by GDBARCH. */
61 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
62 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
64 extern int gdbarch_byte_order (struct gdbarch
*gdbarch
);
65 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
67 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
68 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
70 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
71 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
74 /* The following are initialized by the target dependent code. */
76 /* Number of bits in a char or unsigned char for the target machine.
77 Just like CHAR_BIT in <limits.h> but describes the target machine.
78 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
80 Number of bits in a short or unsigned short for the target machine. */
82 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
83 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
85 /* Number of bits in an int or unsigned int for the target machine. */
87 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
88 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
90 /* Number of bits in a long or unsigned long for the target machine. */
92 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
93 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
95 /* Number of bits in a long long or unsigned long long for the target
98 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
99 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
101 /* The ABI default bit-size and format for "float", "double", and "long
102 double". These bit/format pairs should eventually be combined into
103 a single object. For the moment, just initialize them as a pair.
104 Each format describes both the big and little endian layouts (if
107 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
108 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
110 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
111 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
113 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
114 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
116 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
117 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
119 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
120 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
122 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
123 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
125 /* For most targets, a pointer on the target and its representation as an
126 address in GDB have the same size and "look the same". For such a
127 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
128 / addr_bit will be set from it.
130 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
131 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
134 ptr_bit is the size of a pointer on the target */
136 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
137 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
139 /* addr_bit is the size of a target address as represented in gdb */
141 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
142 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
144 /* One if `char' acts like `signed char', zero if `unsigned char'. */
146 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
147 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
149 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
151 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
152 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
153 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
155 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
157 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
158 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
159 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
161 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
162 whole scheme for dealing with "frames" and "frame pointers" needs a
163 serious shakedown. */
165 typedef void (gdbarch_virtual_frame_pointer_ftype
) (CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
166 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
167 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
169 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
171 typedef void (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
172 extern void gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
173 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
175 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
177 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
178 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
179 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
181 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
182 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
184 /* This macro gives the number of pseudo-registers that live in the
185 register namespace but do not get fetched or stored on the target.
186 These pseudo-registers may be aliases for other registers,
187 combinations of other registers, or they may be computed by GDB. */
189 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
190 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
192 /* GDB's standard (or well known) register numbers. These can map onto
193 a real register or a pseudo (computed) register or not be defined at
195 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
197 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
198 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
200 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
201 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
203 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
204 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
206 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
207 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
209 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
211 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (int stab_regnr
);
212 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
213 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
215 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
217 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (int ecoff_regnr
);
218 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
219 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
221 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
223 typedef int (gdbarch_dwarf_reg_to_regnum_ftype
) (int dwarf_regnr
);
224 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf_regnr
);
225 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf_reg_to_regnum_ftype
*dwarf_reg_to_regnum
);
227 /* Convert from an sdb register number to an internal gdb register number. */
229 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (int sdb_regnr
);
230 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
231 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
233 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (int dwarf2_regnr
);
234 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
235 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
237 typedef const char * (gdbarch_register_name_ftype
) (int regnr
);
238 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
239 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
241 /* Return the type of a register specified by the architecture. Only
242 the register cache should call this function directly; others should
243 use "register_type". */
245 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
247 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
248 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
249 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
251 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
253 extern int gdbarch_unwind_dummy_id_p (struct gdbarch
*gdbarch
);
255 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*info
);
256 extern struct frame_id
gdbarch_unwind_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*info
);
257 extern void set_gdbarch_unwind_dummy_id (struct gdbarch
*gdbarch
, gdbarch_unwind_dummy_id_ftype
*unwind_dummy_id
);
259 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
260 deprecated_fp_regnum. */
262 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
263 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
265 /* See gdbint.texinfo. See infcall.c. */
267 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
269 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
);
270 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
);
271 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
273 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
274 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
276 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
278 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR sp
, CORE_ADDR funaddr
, int using_gcc
, struct value
**args
, int nargs
, struct type
*value_type
, CORE_ADDR
*real_pc
, CORE_ADDR
*bp_addr
, struct regcache
*regcache
);
279 extern CORE_ADDR
gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, CORE_ADDR sp
, CORE_ADDR funaddr
, int using_gcc
, struct value
**args
, int nargs
, struct type
*value_type
, CORE_ADDR
*real_pc
, CORE_ADDR
*bp_addr
, struct regcache
*regcache
);
280 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
282 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
283 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
284 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
286 extern int gdbarch_print_float_info_p (struct gdbarch
*gdbarch
);
288 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
289 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
290 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
292 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
294 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
295 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
296 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
298 /* MAP a GDB RAW register number onto a simulator register number. See
299 also include/...-sim.h. */
301 typedef int (gdbarch_register_sim_regno_ftype
) (int reg_nr
);
302 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
303 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
305 typedef int (gdbarch_cannot_fetch_register_ftype
) (int regnum
);
306 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
307 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
309 typedef int (gdbarch_cannot_store_register_ftype
) (int regnum
);
310 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
311 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
313 /* setjmp/longjmp support. */
315 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
317 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
318 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
319 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
321 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
322 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
324 typedef int (gdbarch_convert_register_p_ftype
) (int regnum
, struct type
*type
);
325 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
326 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
328 typedef void (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
329 extern void gdbarch_register_to_value (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
330 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
332 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
333 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
334 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
336 /* Construct a value representing the contents of register REGNUM in
337 frame FRAME, interpreted as type TYPE. The routine needs to
338 allocate and return a struct value with all value attributes
339 (but not the value contents) filled in. */
341 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct type
*type
, int regnum
, struct frame_info
*frame
);
342 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_info
*frame
);
343 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
345 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct type
*type
, const gdb_byte
*buf
);
346 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
347 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
349 typedef void (gdbarch_address_to_pointer_ftype
) (struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
350 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
351 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
353 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
355 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
356 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
357 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
359 /* It has been suggested that this, well actually its predecessor,
360 should take the type/value of the function to be called and not the
361 return type. This is left as an exercise for the reader.
362 NOTE: cagney/2004-06-13: The function stack.c:return_command uses
363 the predicate with default hack to avoid calling store_return_value
364 (via legacy_return_value), when a small struct is involved. */
366 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
368 typedef enum return_value_convention (gdbarch_return_value_ftype
) (struct gdbarch
*gdbarch
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
369 extern enum return_value_convention
gdbarch_return_value (struct gdbarch
*gdbarch
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
370 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
372 /* The deprecated methods extract_return_value, store_return_value,
373 DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
374 deprecated_use_struct_convention have all been folded into
377 typedef void (gdbarch_extract_return_value_ftype
) (struct type
*type
, struct regcache
*regcache
, gdb_byte
*valbuf
);
378 extern void gdbarch_extract_return_value (struct gdbarch
*gdbarch
, struct type
*type
, struct regcache
*regcache
, gdb_byte
*valbuf
);
379 extern void set_gdbarch_extract_return_value (struct gdbarch
*gdbarch
, gdbarch_extract_return_value_ftype
*extract_return_value
);
381 typedef void (gdbarch_store_return_value_ftype
) (struct type
*type
, struct regcache
*regcache
, const gdb_byte
*valbuf
);
382 extern void gdbarch_store_return_value (struct gdbarch
*gdbarch
, struct type
*type
, struct regcache
*regcache
, const gdb_byte
*valbuf
);
383 extern void set_gdbarch_store_return_value (struct gdbarch
*gdbarch
, gdbarch_store_return_value_ftype
*store_return_value
);
385 typedef int (gdbarch_deprecated_use_struct_convention_ftype
) (int gcc_p
, struct type
*value_type
);
386 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch
*gdbarch
, int gcc_p
, struct type
*value_type
);
387 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch
*gdbarch
, gdbarch_deprecated_use_struct_convention_ftype
*deprecated_use_struct_convention
);
389 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (CORE_ADDR ip
);
390 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
391 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
393 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
394 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
395 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
397 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (CORE_ADDR
*pcptr
, int *lenptr
);
398 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
399 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
401 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
403 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
404 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
405 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
407 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct bp_target_info
*bp_tgt
);
408 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
409 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
411 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct bp_target_info
*bp_tgt
);
412 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
413 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
415 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
416 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
418 /* A function can be addressed by either it's "pointer" (possibly a
419 descriptor address) or "entry point" (first executable instruction).
420 The method "convert_from_func_ptr_addr" converting the former to the
421 latter. gdbarch_deprecated_function_start_offset is being used to implement
422 a simplified subset of that functionality - the function's address
423 corresponds to the "function pointer" and the function's start
424 corresponds to the "function entry point" - and hence is redundant. */
426 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
427 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
429 /* Return the remote protocol register number associated with this
430 register. Normally the identity mapping. */
432 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
433 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
434 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
436 /* Fetch the target specific address used to represent a load module. */
438 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
440 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
441 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
442 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
444 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
445 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
447 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
449 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
450 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
451 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
453 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
455 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
456 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
457 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
459 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
460 frame-base. Enable frame-base before frame-unwind. */
462 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
464 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
465 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
466 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
468 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
470 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
471 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
472 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
474 /* deprecated_reg_struct_has_addr has been replaced by
475 stabs_argument_has_addr. */
477 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch
*gdbarch
);
479 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype
) (int gcc_p
, struct type
*type
);
480 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch
*gdbarch
, int gcc_p
, struct type
*type
);
481 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch
*gdbarch
, gdbarch_deprecated_reg_struct_has_addr_ftype
*deprecated_reg_struct_has_addr
);
483 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
484 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
485 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
487 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
488 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
490 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
491 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
492 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
494 /* On some machines there are bits in addresses which are not really
495 part of the address, but are used by the kernel, the hardware, etc.
496 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
497 we get a "real" address such as one would find in a symbol table.
498 This is used only for addresses of instructions, and even then I'm
499 not sure it's used in all contexts. It exists to deal with there
500 being a few stray bits in the PC which would mislead us, not as some
501 sort of generic thing to handle alignment or segmentation (it's
502 possible it should be in TARGET_READ_PC instead). */
504 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (CORE_ADDR addr
);
505 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
506 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
508 /* It is not at all clear why gdbarch_smash_text_address is not folded into
509 gdbarch_addr_bits_remove. */
511 typedef CORE_ADDR (gdbarch_smash_text_address_ftype
) (CORE_ADDR addr
);
512 extern CORE_ADDR
gdbarch_smash_text_address (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
513 extern void set_gdbarch_smash_text_address (struct gdbarch
*gdbarch
, gdbarch_smash_text_address_ftype
*smash_text_address
);
515 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
516 indicates if the target needs software single step. An ISA method to
519 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
520 breakpoints using the breakpoint system instead of blatting memory directly
523 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
524 target can single step. If not, then implement single step using breakpoints.
526 A return value of 1 means that the software_single_step breakpoints
527 were inserted; 0 means they were not. */
529 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
531 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
532 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
533 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
535 /* Return non-zero if the processor is executing a delay slot and a
536 further single-step is needed before the instruction finishes. */
538 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
540 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
541 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
542 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
544 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
545 disassembler. Perhaps objdump can handle it? */
547 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
548 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
549 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
551 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
552 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
553 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
555 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
556 evaluates non-zero, this is the address where the debugger will place
557 a step-resume breakpoint to get us past the dynamic linker. */
559 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
560 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
561 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
563 /* Some systems also have trampoline code for returning from shared libs. */
565 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (CORE_ADDR pc
, char *name
);
566 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, char *name
);
567 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
569 /* A target might have problems with watchpoints as soon as the stack
570 frame of the current function has been destroyed. This mostly happens
571 as the first action in a funtion's epilogue. in_function_epilogue_p()
572 is defined to return a non-zero value if either the given addr is one
573 instruction after the stack destroying instruction up to the trailing
574 return instruction or if we can figure out that the stack frame has
575 already been invalidated regardless of the value of addr. Targets
576 which don't suffer from that problem could just let this functionality
579 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
580 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
581 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
583 /* Given a vector of command-line arguments, return a newly allocated
584 string which, when passed to the create_inferior function, will be
585 parsed (on Unix systems, by the shell) to yield the same vector.
586 This function should call error() if the argument vector is not
587 representable for this target or if this target does not support
588 command-line arguments.
589 ARGC is the number of elements in the vector.
590 ARGV is an array of strings, one per argument. */
592 typedef char * (gdbarch_construct_inferior_arguments_ftype
) (struct gdbarch
*gdbarch
, int argc
, char **argv
);
593 extern char * gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
);
594 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, gdbarch_construct_inferior_arguments_ftype
*construct_inferior_arguments
);
596 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
597 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
598 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
600 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
601 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
602 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
604 extern const char * gdbarch_name_of_malloc (struct gdbarch
*gdbarch
);
605 extern void set_gdbarch_name_of_malloc (struct gdbarch
*gdbarch
, const char * name_of_malloc
);
607 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
608 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
610 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
611 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
613 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
615 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
616 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
617 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
619 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
621 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
622 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
623 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
);
625 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
627 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
628 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
629 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
);
631 /* Is a register in a group */
633 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
634 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
635 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
637 /* Fetch the pointer to the ith function argument. */
639 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
641 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
642 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
643 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
645 /* Return the appropriate register set for a core file section with
646 name SECT_NAME and size SECT_SIZE. */
648 extern int gdbarch_regset_from_core_section_p (struct gdbarch
*gdbarch
);
650 typedef const struct regset
* (gdbarch_regset_from_core_section_ftype
) (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
651 extern const struct regset
* gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
652 extern void set_gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, gdbarch_regset_from_core_section_ftype
*regset_from_core_section
);
654 /* If the elements of C++ vtables are in-place function descriptors rather
655 than normal function pointers (which may point to code or a descriptor),
658 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
659 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
661 /* Set if the least significant bit of the delta is used instead of the least
662 significant bit of the pfn for pointers to virtual member functions. */
664 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
665 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
667 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
669 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch
*gdbarch
);
671 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
672 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
673 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
675 /* Refresh overlay mapped state for section OSECT. */
677 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
679 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
680 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
681 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
683 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
686 /* Mechanism for co-ordinating the selection of a specific
689 GDB targets (*-tdep.c) can register an interest in a specific
690 architecture. Other GDB components can register a need to maintain
691 per-architecture data.
693 The mechanisms below ensures that there is only a loose connection
694 between the set-architecture command and the various GDB
695 components. Each component can independently register their need
696 to maintain architecture specific data with gdbarch.
700 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
703 The more traditional mega-struct containing architecture specific
704 data for all the various GDB components was also considered. Since
705 GDB is built from a variable number of (fairly independent)
706 components it was determined that the global aproach was not
710 /* Register a new architectural family with GDB.
712 Register support for the specified ARCHITECTURE with GDB. When
713 gdbarch determines that the specified architecture has been
714 selected, the corresponding INIT function is called.
718 The INIT function takes two parameters: INFO which contains the
719 information available to gdbarch about the (possibly new)
720 architecture; ARCHES which is a list of the previously created
721 ``struct gdbarch'' for this architecture.
723 The INFO parameter is, as far as possible, be pre-initialized with
724 information obtained from INFO.ABFD or the global defaults.
726 The ARCHES parameter is a linked list (sorted most recently used)
727 of all the previously created architures for this architecture
728 family. The (possibly NULL) ARCHES->gdbarch can used to access
729 values from the previously selected architecture for this
730 architecture family. The global ``current_gdbarch'' shall not be
733 The INIT function shall return any of: NULL - indicating that it
734 doesn't recognize the selected architecture; an existing ``struct
735 gdbarch'' from the ARCHES list - indicating that the new
736 architecture is just a synonym for an earlier architecture (see
737 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
738 - that describes the selected architecture (see gdbarch_alloc()).
740 The DUMP_TDEP function shall print out all target specific values.
741 Care should be taken to ensure that the function works in both the
742 multi-arch and non- multi-arch cases. */
746 struct gdbarch
*gdbarch
;
747 struct gdbarch_list
*next
;
752 /* Use default: NULL (ZERO). */
753 const struct bfd_arch_info
*bfd_arch_info
;
755 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
758 /* Use default: NULL (ZERO). */
761 /* Use default: NULL (ZERO). */
762 struct gdbarch_tdep_info
*tdep_info
;
764 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
765 enum gdb_osabi osabi
;
767 /* Use default: NULL (ZERO). */
768 const struct target_desc
*target_desc
;
771 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
772 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
774 /* DEPRECATED - use gdbarch_register() */
775 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
777 extern void gdbarch_register (enum bfd_architecture architecture
,
778 gdbarch_init_ftype
*,
779 gdbarch_dump_tdep_ftype
*);
782 /* Return a freshly allocated, NULL terminated, array of the valid
783 architecture names. Since architectures are registered during the
784 _initialize phase this function only returns useful information
785 once initialization has been completed. */
787 extern const char **gdbarch_printable_names (void);
790 /* Helper function. Search the list of ARCHES for a GDBARCH that
791 matches the information provided by INFO. */
793 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
796 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
797 basic initialization using values obtained from the INFO and TDEP
798 parameters. set_gdbarch_*() functions are called to complete the
799 initialization of the object. */
801 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
804 /* Helper function. Free a partially-constructed ``struct gdbarch''.
805 It is assumed that the caller freeds the ``struct
808 extern void gdbarch_free (struct gdbarch
*);
811 /* Helper function. Allocate memory from the ``struct gdbarch''
812 obstack. The memory is freed when the corresponding architecture
815 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
816 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
817 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
820 /* Helper function. Force an update of the current architecture.
822 The actual architecture selected is determined by INFO, ``(gdb) set
823 architecture'' et.al., the existing architecture and BFD's default
824 architecture. INFO should be initialized to zero and then selected
825 fields should be updated.
827 Returns non-zero if the update succeeds */
829 extern int gdbarch_update_p (struct gdbarch_info info
);
832 /* Helper function. Find an architecture matching info.
834 INFO should be initialized using gdbarch_info_init, relevant fields
835 set, and then finished using gdbarch_info_fill.
837 Returns the corresponding architecture, or NULL if no matching
838 architecture was found. "current_gdbarch" is not updated. */
840 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
843 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
845 FIXME: kettenis/20031124: Of the functions that follow, only
846 gdbarch_from_bfd is supposed to survive. The others will
847 dissappear since in the future GDB will (hopefully) be truly
848 multi-arch. However, for now we're still stuck with the concept of
849 a single active architecture. */
851 extern void deprecated_current_gdbarch_select_hack (struct gdbarch
*gdbarch
);
854 /* Register per-architecture data-pointer.
856 Reserve space for a per-architecture data-pointer. An identifier
857 for the reserved data-pointer is returned. That identifer should
858 be saved in a local static variable.
860 Memory for the per-architecture data shall be allocated using
861 gdbarch_obstack_zalloc. That memory will be deleted when the
862 corresponding architecture object is deleted.
864 When a previously created architecture is re-selected, the
865 per-architecture data-pointer for that previous architecture is
866 restored. INIT() is not re-called.
868 Multiple registrarants for any architecture are allowed (and
869 strongly encouraged). */
873 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
874 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
875 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
876 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
877 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
878 struct gdbarch_data
*data
,
881 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
884 /* Set the dynamic target-system-dependent parameters (architecture,
885 byte-order, ...) using information found in the BFD */
887 extern void set_gdbarch_from_file (bfd
*);
890 /* Initialize the current architecture to the "first" one we find on
893 extern void initialize_current_architecture (void);
895 /* gdbarch trace variable */
896 extern int gdbarch_debug
;
898 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);