1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
3 /* Dynamic architecture support for GDB, the GNU debugger.
5 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
6 Free Software Foundation, Inc.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file was created with the aid of ``gdbarch.sh''.
25 The Bourne shell script ``gdbarch.sh'' creates the files
26 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
27 against the existing ``gdbarch.[hc]''. Any differences found
30 If editing this file, please also run gdbarch.sh and merge any
31 changes into that script. Conversely, when making sweeping changes
32 to this file, modifying gdbarch.sh and using its output may prove
44 struct minimal_symbol
;
48 struct disassemble_info
;
51 struct bp_target_info
;
53 struct displaced_step_closure
;
54 struct core_regset_section
;
56 extern struct gdbarch
*current_gdbarch
;
57 extern struct gdbarch
*target_gdbarch
;
60 /* The following are pre-initialized by GDBARCH. */
62 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
63 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
65 extern int gdbarch_byte_order (struct gdbarch
*gdbarch
);
66 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
68 extern int gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
69 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
71 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
72 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
74 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
75 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
78 /* The following are initialized by the target dependent code. */
80 /* The bit byte-order has to do just with numbering of bits in debugging symbols
81 and such. Conceptually, it's quite separate from byte/word byte order. */
83 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
84 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
86 /* Number of bits in a char or unsigned char for the target machine.
87 Just like CHAR_BIT in <limits.h> but describes the target machine.
88 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
90 Number of bits in a short or unsigned short for the target machine. */
92 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
93 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
95 /* Number of bits in an int or unsigned int for the target machine. */
97 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
98 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
100 /* Number of bits in a long or unsigned long for the target machine. */
102 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
103 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
105 /* Number of bits in a long long or unsigned long long for the target
108 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
109 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
111 /* The ABI default bit-size and format for "float", "double", and "long
112 double". These bit/format pairs should eventually be combined into
113 a single object. For the moment, just initialize them as a pair.
114 Each format describes both the big and little endian layouts (if
117 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
118 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
120 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
121 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
123 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
124 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
126 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
127 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
129 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
130 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
132 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
133 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
135 /* For most targets, a pointer on the target and its representation as an
136 address in GDB have the same size and "look the same". For such a
137 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
138 / addr_bit will be set from it.
140 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
141 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
144 ptr_bit is the size of a pointer on the target */
146 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
147 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
149 /* addr_bit is the size of a target address as represented in gdb */
151 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
152 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
154 /* One if `char' acts like `signed char', zero if `unsigned char'. */
156 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
157 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
159 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
161 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
162 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
163 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
165 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
167 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
168 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
169 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
171 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
172 whole scheme for dealing with "frames" and "frame pointers" needs a
173 serious shakedown. */
175 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
176 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
177 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
179 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
181 typedef void (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
182 extern void gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
183 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
185 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
187 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
188 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
189 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
191 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
192 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
194 /* This macro gives the number of pseudo-registers that live in the
195 register namespace but do not get fetched or stored on the target.
196 These pseudo-registers may be aliases for other registers,
197 combinations of other registers, or they may be computed by GDB. */
199 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
200 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
202 /* GDB's standard (or well known) register numbers. These can map onto
203 a real register or a pseudo (computed) register or not be defined at
205 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
207 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
208 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
210 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
211 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
213 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
214 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
216 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
217 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
219 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
221 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
222 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
223 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
225 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
227 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
228 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
229 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
231 /* Convert from an sdb register number to an internal gdb register number. */
233 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
234 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
235 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
237 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
239 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
240 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
241 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
243 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
244 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
245 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
247 /* Return the type of a register specified by the architecture. Only
248 the register cache should call this function directly; others should
249 use "register_type". */
251 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
253 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
254 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
255 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
257 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
259 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
261 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
262 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
263 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
265 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
266 deprecated_fp_regnum. */
268 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
269 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
271 /* See gdbint.texinfo. See infcall.c. */
273 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
275 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
);
276 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
);
277 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
279 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
280 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
282 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
284 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
);
285 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
);
286 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
288 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
289 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
290 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
292 extern int gdbarch_print_float_info_p (struct gdbarch
*gdbarch
);
294 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
295 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
296 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
298 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
300 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
301 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
302 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
304 /* MAP a GDB RAW register number onto a simulator register number. See
305 also include/...-sim.h. */
307 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
308 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
309 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
311 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
312 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
313 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
315 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
316 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
317 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
319 /* setjmp/longjmp support. */
321 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
323 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
324 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
325 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
327 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
328 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
330 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
331 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
332 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
334 typedef void (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
335 extern void gdbarch_register_to_value (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
336 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
338 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
339 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
340 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
342 /* Construct a value representing the contents of register REGNUM in
343 frame FRAME, interpreted as type TYPE. The routine needs to
344 allocate and return a struct value with all value attributes
345 (but not the value contents) filled in. */
347 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct type
*type
, int regnum
, struct frame_info
*frame
);
348 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_info
*frame
);
349 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
351 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct type
*type
, const gdb_byte
*buf
);
352 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
353 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
355 typedef void (gdbarch_address_to_pointer_ftype
) (struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
356 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
357 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
359 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
361 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
362 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
363 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
365 /* Return the return-value convention that will be used by FUNCTYPE
366 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
367 case the return convention is computed based only on VALTYPE.
369 If READBUF is not NULL, extract the return value and save it in this buffer.
371 If WRITEBUF is not NULL, it contains a return value which will be
372 stored into the appropriate register. This can be used when we want
373 to force the value returned by a function (see the "return" command
376 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
378 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
);
379 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
);
380 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
382 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
383 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
384 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
386 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
388 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
389 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
390 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
392 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
393 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
394 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
396 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
397 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
398 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
400 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
402 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
403 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
404 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
406 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
407 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
408 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
410 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
411 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
412 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
414 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
415 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
417 /* A function can be addressed by either it's "pointer" (possibly a
418 descriptor address) or "entry point" (first executable instruction).
419 The method "convert_from_func_ptr_addr" converting the former to the
420 latter. gdbarch_deprecated_function_start_offset is being used to implement
421 a simplified subset of that functionality - the function's address
422 corresponds to the "function pointer" and the function's start
423 corresponds to the "function entry point" - and hence is redundant. */
425 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
426 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
428 /* Return the remote protocol register number associated with this
429 register. Normally the identity mapping. */
431 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
432 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
433 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
435 /* Fetch the target specific address used to represent a load module. */
437 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
439 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
440 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
441 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
443 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
444 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
446 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
448 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
449 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
450 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
452 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
454 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
455 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
456 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
458 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
459 frame-base. Enable frame-base before frame-unwind. */
461 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
463 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
464 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
465 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
467 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
469 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
470 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
471 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
473 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
474 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
475 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
477 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
478 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
480 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
481 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
482 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
484 /* On some machines there are bits in addresses which are not really
485 part of the address, but are used by the kernel, the hardware, etc.
486 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
487 we get a "real" address such as one would find in a symbol table.
488 This is used only for addresses of instructions, and even then I'm
489 not sure it's used in all contexts. It exists to deal with there
490 being a few stray bits in the PC which would mislead us, not as some
491 sort of generic thing to handle alignment or segmentation (it's
492 possible it should be in TARGET_READ_PC instead). */
494 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
495 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
496 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
498 /* It is not at all clear why gdbarch_smash_text_address is not folded into
499 gdbarch_addr_bits_remove. */
501 typedef CORE_ADDR (gdbarch_smash_text_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
502 extern CORE_ADDR
gdbarch_smash_text_address (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
503 extern void set_gdbarch_smash_text_address (struct gdbarch
*gdbarch
, gdbarch_smash_text_address_ftype
*smash_text_address
);
505 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
506 indicates if the target needs software single step. An ISA method to
509 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
510 breakpoints using the breakpoint system instead of blatting memory directly
513 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
514 target can single step. If not, then implement single step using breakpoints.
516 A return value of 1 means that the software_single_step breakpoints
517 were inserted; 0 means they were not. */
519 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
521 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
522 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
523 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
525 /* Return non-zero if the processor is executing a delay slot and a
526 further single-step is needed before the instruction finishes. */
528 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
530 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
531 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
532 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
534 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
535 disassembler. Perhaps objdump can handle it? */
537 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
538 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
539 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
541 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
542 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
543 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
545 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
546 evaluates non-zero, this is the address where the debugger will place
547 a step-resume breakpoint to get us past the dynamic linker. */
549 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
550 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
551 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
553 /* Some systems also have trampoline code for returning from shared libs. */
555 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (CORE_ADDR pc
, char *name
);
556 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, char *name
);
557 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
559 /* A target might have problems with watchpoints as soon as the stack
560 frame of the current function has been destroyed. This mostly happens
561 as the first action in a funtion's epilogue. in_function_epilogue_p()
562 is defined to return a non-zero value if either the given addr is one
563 instruction after the stack destroying instruction up to the trailing
564 return instruction or if we can figure out that the stack frame has
565 already been invalidated regardless of the value of addr. Targets
566 which don't suffer from that problem could just let this functionality
569 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
570 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
571 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
573 /* Given a vector of command-line arguments, return a newly allocated
574 string which, when passed to the create_inferior function, will be
575 parsed (on Unix systems, by the shell) to yield the same vector.
576 This function should call error() if the argument vector is not
577 representable for this target or if this target does not support
578 command-line arguments.
579 ARGC is the number of elements in the vector.
580 ARGV is an array of strings, one per argument. */
582 typedef char * (gdbarch_construct_inferior_arguments_ftype
) (struct gdbarch
*gdbarch
, int argc
, char **argv
);
583 extern char * gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
);
584 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, gdbarch_construct_inferior_arguments_ftype
*construct_inferior_arguments
);
586 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
587 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
588 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
590 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
591 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
592 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
594 extern const char * gdbarch_name_of_malloc (struct gdbarch
*gdbarch
);
595 extern void set_gdbarch_name_of_malloc (struct gdbarch
*gdbarch
, const char * name_of_malloc
);
597 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
598 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
600 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
601 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
603 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
605 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
606 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
607 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
609 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
611 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
612 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
613 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
);
615 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
617 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
618 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
619 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
);
621 /* Is a register in a group */
623 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
624 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
625 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
627 /* Fetch the pointer to the ith function argument. */
629 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
631 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
632 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
633 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
635 /* Return the appropriate register set for a core file section with
636 name SECT_NAME and size SECT_SIZE. */
638 extern int gdbarch_regset_from_core_section_p (struct gdbarch
*gdbarch
);
640 typedef const struct regset
* (gdbarch_regset_from_core_section_ftype
) (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
641 extern const struct regset
* gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
642 extern void set_gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, gdbarch_regset_from_core_section_ftype
*regset_from_core_section
);
644 /* Supported register notes in a core file. */
646 extern struct core_regset_section
* gdbarch_core_regset_sections (struct gdbarch
*gdbarch
);
647 extern void set_gdbarch_core_regset_sections (struct gdbarch
*gdbarch
, struct core_regset_section
* core_regset_sections
);
649 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
650 core file into buffer READBUF with length LEN. */
652 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
654 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
655 extern LONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
656 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
658 /* If the elements of C++ vtables are in-place function descriptors rather
659 than normal function pointers (which may point to code or a descriptor),
662 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
663 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
665 /* Set if the least significant bit of the delta is used instead of the least
666 significant bit of the pfn for pointers to virtual member functions. */
668 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
669 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
671 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
673 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch
*gdbarch
);
675 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
676 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
677 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
679 /* The maximum length of an instruction on this architecture. */
681 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
683 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
684 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
686 /* Copy the instruction at FROM to TO, and make any adjustments
687 necessary to single-step it at that address.
689 REGS holds the state the thread's registers will have before
690 executing the copied instruction; the PC in REGS will refer to FROM,
691 not the copy at TO. The caller should update it to point at TO later.
693 Return a pointer to data of the architecture's choice to be passed
694 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
695 the instruction's effects have been completely simulated, with the
696 resulting state written back to REGS.
698 For a general explanation of displaced stepping and how GDB uses it,
699 see the comments in infrun.c.
701 The TO area is only guaranteed to have space for
702 gdbarch_max_insn_length (arch) bytes, so this function must not
703 write more bytes than that to that area.
705 If you do not provide this function, GDB assumes that the
706 architecture does not support displaced stepping.
708 If your architecture doesn't need to adjust instructions before
709 single-stepping them, consider using simple_displaced_step_copy_insn
712 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
714 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
715 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
716 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
718 /* Fix up the state resulting from successfully single-stepping a
719 displaced instruction, to give the result we would have gotten from
720 stepping the instruction in its original location.
722 REGS is the register state resulting from single-stepping the
723 displaced instruction.
725 CLOSURE is the result from the matching call to
726 gdbarch_displaced_step_copy_insn.
728 If you provide gdbarch_displaced_step_copy_insn.but not this
729 function, then GDB assumes that no fixup is needed after
730 single-stepping the instruction.
732 For a general explanation of displaced stepping and how GDB uses it,
733 see the comments in infrun.c. */
735 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
737 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
738 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
739 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
741 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
743 If you provide gdbarch_displaced_step_copy_insn, you must provide
744 this function as well.
746 If your architecture uses closures that don't need to be freed, then
747 you can use simple_displaced_step_free_closure here.
749 For a general explanation of displaced stepping and how GDB uses it,
750 see the comments in infrun.c. */
752 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
753 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
754 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
756 /* Return the address of an appropriate place to put displaced
757 instructions while we step over them. There need only be one such
758 place, since we're only stepping one thread over a breakpoint at a
761 For a general explanation of displaced stepping and how GDB uses it,
762 see the comments in infrun.c. */
764 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
765 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
766 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
768 /* Refresh overlay mapped state for section OSECT. */
770 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
772 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
773 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
774 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
776 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
778 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
779 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
780 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
782 /* Handle special encoding of static variables in stabs debug info. */
784 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
786 typedef char * (gdbarch_static_transform_name_ftype
) (char *name
);
787 extern char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, char *name
);
788 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
790 /* Set if the address in N_SO or N_FUN stabs may be zero. */
792 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
793 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
795 /* Signal translation: translate inferior's signal (host's) number into
796 GDB's representation. */
798 typedef enum target_signal (gdbarch_target_signal_from_host_ftype
) (struct gdbarch
*gdbarch
, int signo
);
799 extern enum target_signal
gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, int signo
);
800 extern void set_gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_from_host_ftype
*target_signal_from_host
);
802 /* Signal translation: translate GDB's signal number into inferior's host
805 typedef int (gdbarch_target_signal_to_host_ftype
) (struct gdbarch
*gdbarch
, enum target_signal ts
);
806 extern int gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, enum target_signal ts
);
807 extern void set_gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_to_host_ftype
*target_signal_to_host
);
809 /* Record architecture-specific information from the symbol table. */
811 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
813 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
814 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
815 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
817 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
820 /* Mechanism for co-ordinating the selection of a specific
823 GDB targets (*-tdep.c) can register an interest in a specific
824 architecture. Other GDB components can register a need to maintain
825 per-architecture data.
827 The mechanisms below ensures that there is only a loose connection
828 between the set-architecture command and the various GDB
829 components. Each component can independently register their need
830 to maintain architecture specific data with gdbarch.
834 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
837 The more traditional mega-struct containing architecture specific
838 data for all the various GDB components was also considered. Since
839 GDB is built from a variable number of (fairly independent)
840 components it was determined that the global aproach was not
844 /* Register a new architectural family with GDB.
846 Register support for the specified ARCHITECTURE with GDB. When
847 gdbarch determines that the specified architecture has been
848 selected, the corresponding INIT function is called.
852 The INIT function takes two parameters: INFO which contains the
853 information available to gdbarch about the (possibly new)
854 architecture; ARCHES which is a list of the previously created
855 ``struct gdbarch'' for this architecture.
857 The INFO parameter is, as far as possible, be pre-initialized with
858 information obtained from INFO.ABFD or the global defaults.
860 The ARCHES parameter is a linked list (sorted most recently used)
861 of all the previously created architures for this architecture
862 family. The (possibly NULL) ARCHES->gdbarch can used to access
863 values from the previously selected architecture for this
864 architecture family. The global ``current_gdbarch'' shall not be
867 The INIT function shall return any of: NULL - indicating that it
868 doesn't recognize the selected architecture; an existing ``struct
869 gdbarch'' from the ARCHES list - indicating that the new
870 architecture is just a synonym for an earlier architecture (see
871 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
872 - that describes the selected architecture (see gdbarch_alloc()).
874 The DUMP_TDEP function shall print out all target specific values.
875 Care should be taken to ensure that the function works in both the
876 multi-arch and non- multi-arch cases. */
880 struct gdbarch
*gdbarch
;
881 struct gdbarch_list
*next
;
886 /* Use default: NULL (ZERO). */
887 const struct bfd_arch_info
*bfd_arch_info
;
889 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
892 int byte_order_for_code
;
894 /* Use default: NULL (ZERO). */
897 /* Use default: NULL (ZERO). */
898 struct gdbarch_tdep_info
*tdep_info
;
900 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
901 enum gdb_osabi osabi
;
903 /* Use default: NULL (ZERO). */
904 const struct target_desc
*target_desc
;
907 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
908 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
910 /* DEPRECATED - use gdbarch_register() */
911 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
913 extern void gdbarch_register (enum bfd_architecture architecture
,
914 gdbarch_init_ftype
*,
915 gdbarch_dump_tdep_ftype
*);
918 /* Return a freshly allocated, NULL terminated, array of the valid
919 architecture names. Since architectures are registered during the
920 _initialize phase this function only returns useful information
921 once initialization has been completed. */
923 extern const char **gdbarch_printable_names (void);
926 /* Helper function. Search the list of ARCHES for a GDBARCH that
927 matches the information provided by INFO. */
929 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
932 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
933 basic initialization using values obtained from the INFO and TDEP
934 parameters. set_gdbarch_*() functions are called to complete the
935 initialization of the object. */
937 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
940 /* Helper function. Free a partially-constructed ``struct gdbarch''.
941 It is assumed that the caller freeds the ``struct
944 extern void gdbarch_free (struct gdbarch
*);
947 /* Helper function. Allocate memory from the ``struct gdbarch''
948 obstack. The memory is freed when the corresponding architecture
951 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
952 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
953 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
956 /* Helper function. Force an update of the current architecture.
958 The actual architecture selected is determined by INFO, ``(gdb) set
959 architecture'' et.al., the existing architecture and BFD's default
960 architecture. INFO should be initialized to zero and then selected
961 fields should be updated.
963 Returns non-zero if the update succeeds */
965 extern int gdbarch_update_p (struct gdbarch_info info
);
968 /* Helper function. Find an architecture matching info.
970 INFO should be initialized using gdbarch_info_init, relevant fields
971 set, and then finished using gdbarch_info_fill.
973 Returns the corresponding architecture, or NULL if no matching
974 architecture was found. "current_gdbarch" is not updated. */
976 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
979 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
981 FIXME: kettenis/20031124: Of the functions that follow, only
982 gdbarch_from_bfd is supposed to survive. The others will
983 dissappear since in the future GDB will (hopefully) be truly
984 multi-arch. However, for now we're still stuck with the concept of
985 a single active architecture. */
987 extern void deprecated_current_gdbarch_select_hack (struct gdbarch
*gdbarch
);
990 /* Register per-architecture data-pointer.
992 Reserve space for a per-architecture data-pointer. An identifier
993 for the reserved data-pointer is returned. That identifer should
994 be saved in a local static variable.
996 Memory for the per-architecture data shall be allocated using
997 gdbarch_obstack_zalloc. That memory will be deleted when the
998 corresponding architecture object is deleted.
1000 When a previously created architecture is re-selected, the
1001 per-architecture data-pointer for that previous architecture is
1002 restored. INIT() is not re-called.
1004 Multiple registrarants for any architecture are allowed (and
1005 strongly encouraged). */
1007 struct gdbarch_data
;
1009 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1010 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1011 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1012 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1013 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1014 struct gdbarch_data
*data
,
1017 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1020 /* Set the dynamic target-system-dependent parameters (architecture,
1021 byte-order, ...) using information found in the BFD */
1023 extern void set_gdbarch_from_file (bfd
*);
1026 /* Initialize the current architecture to the "first" one we find on
1029 extern void initialize_current_architecture (void);
1031 /* gdbarch trace variable */
1032 extern int gdbarch_debug
;
1034 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);