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
;
55 extern struct gdbarch
*current_gdbarch
;
58 /* The following are pre-initialized by GDBARCH. */
60 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
61 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
63 extern int gdbarch_byte_order (struct gdbarch
*gdbarch
);
64 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
66 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
67 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
69 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
70 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
73 /* The following are initialized by the target dependent code. */
75 /* The bit byte-order has to do just with numbering of bits in debugging symbols
76 and such. Conceptually, it's quite separate from byte/word byte order. */
78 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
79 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
81 /* Number of bits in a char or unsigned char for the target machine.
82 Just like CHAR_BIT in <limits.h> but describes the target machine.
83 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
85 Number of bits in a short or unsigned short for the target machine. */
87 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
88 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
90 /* Number of bits in an int or unsigned int for the target machine. */
92 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
93 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
95 /* Number of bits in a long or unsigned long for the target machine. */
97 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
98 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
100 /* Number of bits in a long long or unsigned long long for the target
103 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
104 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
106 /* The ABI default bit-size and format for "float", "double", and "long
107 double". These bit/format pairs should eventually be combined into
108 a single object. For the moment, just initialize them as a pair.
109 Each format describes both the big and little endian layouts (if
112 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
113 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
115 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
116 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
118 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
119 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
121 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
122 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
124 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
125 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
127 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
128 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
130 /* For most targets, a pointer on the target and its representation as an
131 address in GDB have the same size and "look the same". For such a
132 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
133 / addr_bit will be set from it.
135 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
136 also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
139 ptr_bit is the size of a pointer on the target */
141 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
142 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
144 /* addr_bit is the size of a target address as represented in gdb */
146 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
147 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
149 /* One if `char' acts like `signed char', zero if `unsigned char'. */
151 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
152 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
154 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
156 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
157 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
158 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
160 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
162 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
163 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
164 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
166 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
167 whole scheme for dealing with "frames" and "frame pointers" needs a
168 serious shakedown. */
170 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
171 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
172 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
174 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
176 typedef void (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
177 extern void gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
178 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
180 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
182 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
183 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
184 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
186 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
189 /* This macro gives the number of pseudo-registers that live in the
190 register namespace but do not get fetched or stored on the target.
191 These pseudo-registers may be aliases for other registers,
192 combinations of other registers, or they may be computed by GDB. */
194 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
195 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
197 /* GDB's standard (or well known) register numbers. These can map onto
198 a real register or a pseudo (computed) register or not be defined at
200 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
202 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
203 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
205 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
206 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
208 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
209 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
211 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
212 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
214 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
216 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
217 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
218 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
220 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
222 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
223 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
224 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
226 /* Convert from an sdb register number to an internal gdb register number. */
228 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
229 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
230 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
232 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
234 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
235 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
236 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
238 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
239 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
240 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
242 /* Return the type of a register specified by the architecture. Only
243 the register cache should call this function directly; others should
244 use "register_type". */
246 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
248 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
249 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
250 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
252 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
254 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
256 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
257 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
258 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
260 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
261 deprecated_fp_regnum. */
263 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
264 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
266 /* See gdbint.texinfo. See infcall.c. */
268 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
270 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
);
271 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
);
272 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
274 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
275 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
277 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
279 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
);
280 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
);
281 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
283 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
284 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
285 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
287 extern int gdbarch_print_float_info_p (struct gdbarch
*gdbarch
);
289 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
290 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
291 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
293 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
295 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
296 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
297 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
299 /* MAP a GDB RAW register number onto a simulator register number. See
300 also include/...-sim.h. */
302 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
303 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
304 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
306 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
307 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
308 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
310 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
311 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
312 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
314 /* setjmp/longjmp support. */
316 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
318 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
319 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
320 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
322 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
323 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
325 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
326 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
327 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
329 typedef void (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
330 extern void gdbarch_register_to_value (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
);
331 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
333 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
334 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
335 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
337 /* Construct a value representing the contents of register REGNUM in
338 frame FRAME, interpreted as type TYPE. The routine needs to
339 allocate and return a struct value with all value attributes
340 (but not the value contents) filled in. */
342 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct type
*type
, int regnum
, struct frame_info
*frame
);
343 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_info
*frame
);
344 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
346 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct type
*type
, const gdb_byte
*buf
);
347 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
348 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
350 typedef void (gdbarch_address_to_pointer_ftype
) (struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
351 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
352 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
354 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
356 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
357 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
358 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
360 /* Return the return-value convention that will be used by FUNCTYPE
361 to return a value of type VALTYPE. FUNCTYPE may be NULL in which
362 case the return convention is computed based only on VALTYPE.
364 If READBUF is not NULL, extract the return value and save it in this buffer.
366 If WRITEBUF is not NULL, it contains a return value which will be
367 stored into the appropriate register. This can be used when we want
368 to force the value returned by a function (see the "return" command
371 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
373 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
);
374 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
);
375 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
377 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
378 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
379 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
381 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
382 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
383 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
385 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
386 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
387 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
389 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
391 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
392 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
393 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
395 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
396 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
397 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
399 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
400 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
401 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
403 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
404 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
406 /* A function can be addressed by either it's "pointer" (possibly a
407 descriptor address) or "entry point" (first executable instruction).
408 The method "convert_from_func_ptr_addr" converting the former to the
409 latter. gdbarch_deprecated_function_start_offset is being used to implement
410 a simplified subset of that functionality - the function's address
411 corresponds to the "function pointer" and the function's start
412 corresponds to the "function entry point" - and hence is redundant. */
414 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
415 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
417 /* Return the remote protocol register number associated with this
418 register. Normally the identity mapping. */
420 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
421 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
422 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
424 /* Fetch the target specific address used to represent a load module. */
426 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
428 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
429 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
430 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
432 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
433 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
435 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
437 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
438 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
439 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
441 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
443 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
444 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
445 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
447 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
448 frame-base. Enable frame-base before frame-unwind. */
450 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
452 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
453 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
454 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
456 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
458 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
459 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
460 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
462 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
463 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
464 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
466 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
467 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
469 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
470 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
471 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
473 /* On some machines there are bits in addresses which are not really
474 part of the address, but are used by the kernel, the hardware, etc.
475 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
476 we get a "real" address such as one would find in a symbol table.
477 This is used only for addresses of instructions, and even then I'm
478 not sure it's used in all contexts. It exists to deal with there
479 being a few stray bits in the PC which would mislead us, not as some
480 sort of generic thing to handle alignment or segmentation (it's
481 possible it should be in TARGET_READ_PC instead). */
483 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (CORE_ADDR addr
);
484 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
485 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
487 /* It is not at all clear why gdbarch_smash_text_address is not folded into
488 gdbarch_addr_bits_remove. */
490 typedef CORE_ADDR (gdbarch_smash_text_address_ftype
) (CORE_ADDR addr
);
491 extern CORE_ADDR
gdbarch_smash_text_address (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
492 extern void set_gdbarch_smash_text_address (struct gdbarch
*gdbarch
, gdbarch_smash_text_address_ftype
*smash_text_address
);
494 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
495 indicates if the target needs software single step. An ISA method to
498 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
499 breakpoints using the breakpoint system instead of blatting memory directly
502 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
503 target can single step. If not, then implement single step using breakpoints.
505 A return value of 1 means that the software_single_step breakpoints
506 were inserted; 0 means they were not. */
508 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
510 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
511 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
512 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
514 /* Return non-zero if the processor is executing a delay slot and a
515 further single-step is needed before the instruction finishes. */
517 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
519 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
520 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
521 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
523 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
524 disassembler. Perhaps objdump can handle it? */
526 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
527 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
528 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
530 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
531 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
532 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
534 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
535 evaluates non-zero, this is the address where the debugger will place
536 a step-resume breakpoint to get us past the dynamic linker. */
538 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
539 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
540 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
542 /* Some systems also have trampoline code for returning from shared libs. */
544 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (CORE_ADDR pc
, char *name
);
545 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, char *name
);
546 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
548 /* A target might have problems with watchpoints as soon as the stack
549 frame of the current function has been destroyed. This mostly happens
550 as the first action in a funtion's epilogue. in_function_epilogue_p()
551 is defined to return a non-zero value if either the given addr is one
552 instruction after the stack destroying instruction up to the trailing
553 return instruction or if we can figure out that the stack frame has
554 already been invalidated regardless of the value of addr. Targets
555 which don't suffer from that problem could just let this functionality
558 typedef int (gdbarch_in_function_epilogue_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
559 extern int gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
560 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch
*gdbarch
, gdbarch_in_function_epilogue_p_ftype
*in_function_epilogue_p
);
562 /* Given a vector of command-line arguments, return a newly allocated
563 string which, when passed to the create_inferior function, will be
564 parsed (on Unix systems, by the shell) to yield the same vector.
565 This function should call error() if the argument vector is not
566 representable for this target or if this target does not support
567 command-line arguments.
568 ARGC is the number of elements in the vector.
569 ARGV is an array of strings, one per argument. */
571 typedef char * (gdbarch_construct_inferior_arguments_ftype
) (struct gdbarch
*gdbarch
, int argc
, char **argv
);
572 extern char * gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
);
573 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch
*gdbarch
, gdbarch_construct_inferior_arguments_ftype
*construct_inferior_arguments
);
575 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
576 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
577 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
579 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
580 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
581 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
583 extern const char * gdbarch_name_of_malloc (struct gdbarch
*gdbarch
);
584 extern void set_gdbarch_name_of_malloc (struct gdbarch
*gdbarch
, const char * name_of_malloc
);
586 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
587 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
589 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
590 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
592 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
594 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
595 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
596 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
598 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
600 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
601 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
602 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
);
604 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
606 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
607 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
608 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
);
610 /* Is a register in a group */
612 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
613 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
614 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
616 /* Fetch the pointer to the ith function argument. */
618 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
620 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
621 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
622 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
624 /* Return the appropriate register set for a core file section with
625 name SECT_NAME and size SECT_SIZE. */
627 extern int gdbarch_regset_from_core_section_p (struct gdbarch
*gdbarch
);
629 typedef const struct regset
* (gdbarch_regset_from_core_section_ftype
) (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
630 extern const struct regset
* gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, const char *sect_name
, size_t sect_size
);
631 extern void set_gdbarch_regset_from_core_section (struct gdbarch
*gdbarch
, gdbarch_regset_from_core_section_ftype
*regset_from_core_section
);
633 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
634 core file into buffer READBUF with length LEN. */
636 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
638 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
639 extern LONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
);
640 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
642 /* If the elements of C++ vtables are in-place function descriptors rather
643 than normal function pointers (which may point to code or a descriptor),
646 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
647 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
649 /* Set if the least significant bit of the delta is used instead of the least
650 significant bit of the pfn for pointers to virtual member functions. */
652 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
653 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
655 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
657 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch
*gdbarch
);
659 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
660 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
661 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
663 /* The maximum length of an instruction on this architecture. */
665 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
667 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
668 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
670 /* Copy the instruction at FROM to TO, and make any adjustments
671 necessary to single-step it at that address.
673 REGS holds the state the thread's registers will have before
674 executing the copied instruction; the PC in REGS will refer to FROM,
675 not the copy at TO. The caller should update it to point at TO later.
677 Return a pointer to data of the architecture's choice to be passed
678 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
679 the instruction's effects have been completely simulated, with the
680 resulting state written back to REGS.
682 For a general explanation of displaced stepping and how GDB uses it,
683 see the comments in infrun.c.
685 The TO area is only guaranteed to have space for
686 gdbarch_max_insn_length (arch) bytes, so this function must not
687 write more bytes than that to that area.
689 If you do not provide this function, GDB assumes that the
690 architecture does not support displaced stepping.
692 If your architecture doesn't need to adjust instructions before
693 single-stepping them, consider using simple_displaced_step_copy_insn
696 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
698 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
699 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
700 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
702 /* Fix up the state resulting from successfully single-stepping a
703 displaced instruction, to give the result we would have gotten from
704 stepping the instruction in its original location.
706 REGS is the register state resulting from single-stepping the
707 displaced instruction.
709 CLOSURE is the result from the matching call to
710 gdbarch_displaced_step_copy_insn.
712 If you provide gdbarch_displaced_step_copy_insn.but not this
713 function, then GDB assumes that no fixup is needed after
714 single-stepping the instruction.
716 For a general explanation of displaced stepping and how GDB uses it,
717 see the comments in infrun.c. */
719 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
721 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
722 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
723 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
725 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
727 If you provide gdbarch_displaced_step_copy_insn, you must provide
728 this function as well.
730 If your architecture uses closures that don't need to be freed, then
731 you can use simple_displaced_step_free_closure here.
733 For a general explanation of displaced stepping and how GDB uses it,
734 see the comments in infrun.c. */
736 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
737 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
738 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
740 /* Return the address of an appropriate place to put displaced
741 instructions while we step over them. There need only be one such
742 place, since we're only stepping one thread over a breakpoint at a
745 For a general explanation of displaced stepping and how GDB uses it,
746 see the comments in infrun.c. */
748 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
749 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
750 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
752 /* Refresh overlay mapped state for section OSECT. */
754 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
756 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
757 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
758 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
760 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
762 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
763 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
764 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
766 /* Handle special encoding of static variables in stabs debug info. */
768 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
770 typedef char * (gdbarch_static_transform_name_ftype
) (char *name
);
771 extern char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, char *name
);
772 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
774 /* Set if the address in N_SO or N_FUN stabs may be zero. */
776 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
777 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
779 /* Signal translation: translate inferior's signal (host's) number into
780 GDB's representation. */
782 typedef enum target_signal (gdbarch_target_signal_from_host_ftype
) (struct gdbarch
*gdbarch
, int signo
);
783 extern enum target_signal
gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, int signo
);
784 extern void set_gdbarch_target_signal_from_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_from_host_ftype
*target_signal_from_host
);
786 /* Signal translation: translate GDB's signal number into inferior's host
789 typedef int (gdbarch_target_signal_to_host_ftype
) (struct gdbarch
*gdbarch
, enum target_signal ts
);
790 extern int gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, enum target_signal ts
);
791 extern void set_gdbarch_target_signal_to_host (struct gdbarch
*gdbarch
, gdbarch_target_signal_to_host_ftype
*target_signal_to_host
);
793 /* Record architecture-specific information from the symbol table. */
795 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
797 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
798 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
799 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
801 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
804 /* Mechanism for co-ordinating the selection of a specific
807 GDB targets (*-tdep.c) can register an interest in a specific
808 architecture. Other GDB components can register a need to maintain
809 per-architecture data.
811 The mechanisms below ensures that there is only a loose connection
812 between the set-architecture command and the various GDB
813 components. Each component can independently register their need
814 to maintain architecture specific data with gdbarch.
818 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
821 The more traditional mega-struct containing architecture specific
822 data for all the various GDB components was also considered. Since
823 GDB is built from a variable number of (fairly independent)
824 components it was determined that the global aproach was not
828 /* Register a new architectural family with GDB.
830 Register support for the specified ARCHITECTURE with GDB. When
831 gdbarch determines that the specified architecture has been
832 selected, the corresponding INIT function is called.
836 The INIT function takes two parameters: INFO which contains the
837 information available to gdbarch about the (possibly new)
838 architecture; ARCHES which is a list of the previously created
839 ``struct gdbarch'' for this architecture.
841 The INFO parameter is, as far as possible, be pre-initialized with
842 information obtained from INFO.ABFD or the global defaults.
844 The ARCHES parameter is a linked list (sorted most recently used)
845 of all the previously created architures for this architecture
846 family. The (possibly NULL) ARCHES->gdbarch can used to access
847 values from the previously selected architecture for this
848 architecture family. The global ``current_gdbarch'' shall not be
851 The INIT function shall return any of: NULL - indicating that it
852 doesn't recognize the selected architecture; an existing ``struct
853 gdbarch'' from the ARCHES list - indicating that the new
854 architecture is just a synonym for an earlier architecture (see
855 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
856 - that describes the selected architecture (see gdbarch_alloc()).
858 The DUMP_TDEP function shall print out all target specific values.
859 Care should be taken to ensure that the function works in both the
860 multi-arch and non- multi-arch cases. */
864 struct gdbarch
*gdbarch
;
865 struct gdbarch_list
*next
;
870 /* Use default: NULL (ZERO). */
871 const struct bfd_arch_info
*bfd_arch_info
;
873 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
876 /* Use default: NULL (ZERO). */
879 /* Use default: NULL (ZERO). */
880 struct gdbarch_tdep_info
*tdep_info
;
882 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
883 enum gdb_osabi osabi
;
885 /* Use default: NULL (ZERO). */
886 const struct target_desc
*target_desc
;
889 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
890 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
892 /* DEPRECATED - use gdbarch_register() */
893 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
895 extern void gdbarch_register (enum bfd_architecture architecture
,
896 gdbarch_init_ftype
*,
897 gdbarch_dump_tdep_ftype
*);
900 /* Return a freshly allocated, NULL terminated, array of the valid
901 architecture names. Since architectures are registered during the
902 _initialize phase this function only returns useful information
903 once initialization has been completed. */
905 extern const char **gdbarch_printable_names (void);
908 /* Helper function. Search the list of ARCHES for a GDBARCH that
909 matches the information provided by INFO. */
911 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
914 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
915 basic initialization using values obtained from the INFO and TDEP
916 parameters. set_gdbarch_*() functions are called to complete the
917 initialization of the object. */
919 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
922 /* Helper function. Free a partially-constructed ``struct gdbarch''.
923 It is assumed that the caller freeds the ``struct
926 extern void gdbarch_free (struct gdbarch
*);
929 /* Helper function. Allocate memory from the ``struct gdbarch''
930 obstack. The memory is freed when the corresponding architecture
933 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
934 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
935 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
938 /* Helper function. Force an update of the current architecture.
940 The actual architecture selected is determined by INFO, ``(gdb) set
941 architecture'' et.al., the existing architecture and BFD's default
942 architecture. INFO should be initialized to zero and then selected
943 fields should be updated.
945 Returns non-zero if the update succeeds */
947 extern int gdbarch_update_p (struct gdbarch_info info
);
950 /* Helper function. Find an architecture matching info.
952 INFO should be initialized using gdbarch_info_init, relevant fields
953 set, and then finished using gdbarch_info_fill.
955 Returns the corresponding architecture, or NULL if no matching
956 architecture was found. "current_gdbarch" is not updated. */
958 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
961 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
963 FIXME: kettenis/20031124: Of the functions that follow, only
964 gdbarch_from_bfd is supposed to survive. The others will
965 dissappear since in the future GDB will (hopefully) be truly
966 multi-arch. However, for now we're still stuck with the concept of
967 a single active architecture. */
969 extern void deprecated_current_gdbarch_select_hack (struct gdbarch
*gdbarch
);
972 /* Register per-architecture data-pointer.
974 Reserve space for a per-architecture data-pointer. An identifier
975 for the reserved data-pointer is returned. That identifer should
976 be saved in a local static variable.
978 Memory for the per-architecture data shall be allocated using
979 gdbarch_obstack_zalloc. That memory will be deleted when the
980 corresponding architecture object is deleted.
982 When a previously created architecture is re-selected, the
983 per-architecture data-pointer for that previous architecture is
984 restored. INIT() is not re-called.
986 Multiple registrarants for any architecture are allowed (and
987 strongly encouraged). */
991 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
992 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
993 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
994 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
995 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
996 struct gdbarch_data
*data
,
999 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1002 /* Set the dynamic target-system-dependent parameters (architecture,
1003 byte-order, ...) using information found in the BFD */
1005 extern void set_gdbarch_from_file (bfd
*);
1008 /* Initialize the current architecture to the "first" one we find on
1011 extern void initialize_current_architecture (void);
1013 /* gdbarch trace variable */
1014 extern int gdbarch_debug
;
1016 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);