1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2015 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
45 struct minimal_symbol
;
49 struct disassemble_info
;
52 struct bp_target_info
;
56 struct displaced_step_closure
;
60 struct stap_parse_info
;
62 struct ravenscar_arch_ops
;
63 struct elf_internal_linux_prpsinfo
;
69 /* The architecture associated with the inferior through the
70 connection to the target.
72 The architecture vector provides some information that is really a
73 property of the inferior, accessed through a particular target:
74 ptrace operations; the layout of certain RSP packets; the solib_ops
75 vector; etc. To differentiate architecture accesses to
76 per-inferior/target properties from
77 per-thread/per-frame/per-objfile properties, accesses to
78 per-inferior/target properties should be made through this
81 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
82 extern struct gdbarch
*target_gdbarch (void);
84 /* Callback type for the 'iterate_over_objfiles_in_search_order'
87 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
88 (struct objfile
*objfile
, void *cb_data
);
90 /* Callback type for regset section iterators. The callback usually
91 invokes the REGSET's supply or collect method, to which it must
92 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
93 section name, and HUMAN_NAME is used for diagnostic messages.
94 CB_DATA should have been passed unchanged through the iterator. */
96 typedef void (iterate_over_regset_sections_cb
)
97 (const char *sect_name
, int size
, const struct regset
*regset
,
98 const char *human_name
, void *cb_data
);
101 /* The following are pre-initialized by GDBARCH. */
103 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
104 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
106 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
107 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
109 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
110 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
112 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
113 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
115 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
116 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
119 /* The following are initialized by the target dependent code. */
121 /* The bit byte-order has to do just with numbering of bits in debugging symbols
122 and such. Conceptually, it's quite separate from byte/word byte order. */
124 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
125 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
127 /* Number of bits in a char or unsigned char for the target machine.
128 Just like CHAR_BIT in <limits.h> but describes the target machine.
129 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
131 Number of bits in a short or unsigned short for the target machine. */
133 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
134 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
136 /* Number of bits in an int or unsigned int for the target machine. */
138 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
139 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
141 /* Number of bits in a long or unsigned long for the target machine. */
143 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
144 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
146 /* Number of bits in a long long or unsigned long long for the target
149 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
150 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
152 /* Alignment of a long long or unsigned long long for the target
155 extern int gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
);
156 extern void set_gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
, int long_long_align_bit
);
158 /* The ABI default bit-size and format for "half", "float", "double", and
159 "long double". These bit/format pairs should eventually be combined
160 into a single object. For the moment, just initialize them as a pair.
161 Each format describes both the big and little endian layouts (if
164 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
165 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
167 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
168 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
170 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
171 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
173 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
174 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
176 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
177 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
179 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
180 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
182 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
183 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
185 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
186 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
188 /* For most targets, a pointer on the target and its representation as an
189 address in GDB have the same size and "look the same". For such a
190 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
191 / addr_bit will be set from it.
193 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
194 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
195 gdbarch_address_to_pointer as well.
197 ptr_bit is the size of a pointer on the target */
199 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
200 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
202 /* addr_bit is the size of a target address as represented in gdb */
204 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
205 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
207 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
208 info. For .debug_frame FDEs, this is supposed to be the target address
209 size from the associated CU header, and which is equivalent to the
210 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
211 Unfortunately there is no good way to determine this value. Therefore
212 dwarf2_addr_size simply defaults to the target pointer size.
214 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
215 defined using the target's pointer size so far.
217 Note that dwarf2_addr_size only needs to be redefined by a target if the
218 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
219 and if Dwarf versions < 4 need to be supported. */
221 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
222 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
224 /* One if `char' acts like `signed char', zero if `unsigned char'. */
226 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
227 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
229 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
231 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
232 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
233 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
235 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
237 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
238 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
239 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
241 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
242 whole scheme for dealing with "frames" and "frame pointers" needs a
243 serious shakedown. */
245 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
246 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
247 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
249 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
251 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
252 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
253 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
255 /* Read a register into a new struct value. If the register is wholly
256 or partly unavailable, this should call mark_value_bytes_unavailable
257 as appropriate. If this is defined, then pseudo_register_read will
260 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
262 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
263 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
264 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
266 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
268 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
269 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
270 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
272 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
273 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
275 /* This macro gives the number of pseudo-registers that live in the
276 register namespace but do not get fetched or stored on the target.
277 These pseudo-registers may be aliases for other registers,
278 combinations of other registers, or they may be computed by GDB. */
280 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
281 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
283 /* Assemble agent expression bytecode to collect pseudo-register REG.
284 Return -1 if something goes wrong, 0 otherwise. */
286 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
288 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
289 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
290 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
292 /* Assemble agent expression bytecode to push the value of pseudo-register
293 REG on the interpreter stack.
294 Return -1 if something goes wrong, 0 otherwise. */
296 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
298 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
299 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
300 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
302 /* GDB's standard (or well known) register numbers. These can map onto
303 a real register or a pseudo (computed) register or not be defined at
305 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
307 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
308 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
310 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
311 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
313 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
314 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
316 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
317 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
319 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
321 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
322 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
323 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
325 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
327 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
328 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
329 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
331 /* Convert from an sdb register number to an internal gdb register number. */
333 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
334 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
335 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
337 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
339 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
340 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
341 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
343 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
344 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
345 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
347 /* Return the type of a register specified by the architecture. Only
348 the register cache should call this function directly; others should
349 use "register_type". */
351 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
353 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
354 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
355 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
357 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
359 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
360 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
361 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
363 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
364 deprecated_fp_regnum. */
366 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
367 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
369 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
371 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
);
372 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
);
373 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
375 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
376 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
378 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
380 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
);
381 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
);
382 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
384 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
385 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
386 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
388 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
389 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
390 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
392 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
394 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
395 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
396 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
398 /* MAP a GDB RAW register number onto a simulator register number. See
399 also include/...-sim.h. */
401 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
402 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
403 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
405 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
406 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
407 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
409 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
410 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
411 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
413 /* Determine the address where a longjmp will land and save this address
414 in PC. Return nonzero on success.
416 FRAME corresponds to the longjmp frame. */
418 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
420 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
421 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
422 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
424 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
425 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
427 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
428 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
429 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
431 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
432 extern int gdbarch_register_to_value (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
433 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
435 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
436 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
437 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
439 /* Construct a value representing the contents of register REGNUM in
440 frame FRAME_ID, interpreted as type TYPE. The routine needs to
441 allocate and return a struct value with all value attributes
442 (but not the value contents) filled in. */
444 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
445 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
446 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
448 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
449 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
450 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
452 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
453 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
454 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
456 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
458 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
459 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
460 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
462 /* Return the return-value convention that will be used by FUNCTION
463 to return a value of type VALTYPE. FUNCTION may be NULL in which
464 case the return convention is computed based only on VALTYPE.
466 If READBUF is not NULL, extract the return value and save it in this buffer.
468 If WRITEBUF is not NULL, it contains a return value which will be
469 stored into the appropriate register. This can be used when we want
470 to force the value returned by a function (see the "return" command
473 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
475 typedef enum return_value_convention (gdbarch_return_value_ftype
) (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
476 extern enum return_value_convention
gdbarch_return_value (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, gdb_byte
*readbuf
, const gdb_byte
*writebuf
);
477 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
479 /* Return true if the return value of function is stored in the first hidden
480 parameter. In theory, this feature should be language-dependent, specified
481 by language and its ABI, such as C++. Unfortunately, compiler may
482 implement it to a target-dependent feature. So that we need such hook here
483 to be aware of this in GDB. */
485 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
486 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
487 extern void set_gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, gdbarch_return_in_first_hidden_param_p_ftype
*return_in_first_hidden_param_p
);
489 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
490 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
491 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
493 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
495 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
496 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
497 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
499 /* On some platforms, a single function may provide multiple entry points,
500 e.g. one that is used for function-pointer calls and a different one
501 that is used for direct function calls.
502 In order to ensure that breakpoints set on the function will trigger
503 no matter via which entry point the function is entered, a platform
504 may provide the skip_entrypoint callback. It is called with IP set
505 to the main entry point of a function (as determined by the symbol table),
506 and should return the address of the innermost entry point, where the
507 actual breakpoint needs to be set. Note that skip_entrypoint is used
508 by GDB common code even when debugging optimized code, where skip_prologue
511 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
513 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
514 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
515 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
517 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
518 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
519 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
521 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
522 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
523 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
525 /* Return the adjusted address and kind to use for Z0/Z1 packets.
526 KIND is usually the memory length of the breakpoint, but may have a
527 different target-specific meaning. */
529 typedef void (gdbarch_remote_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
530 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
531 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_remote_breakpoint_from_pc_ftype
*remote_breakpoint_from_pc
);
533 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
535 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
536 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
537 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
539 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
540 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
541 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
543 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
544 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
545 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
547 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
548 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
550 /* A function can be addressed by either it's "pointer" (possibly a
551 descriptor address) or "entry point" (first executable instruction).
552 The method "convert_from_func_ptr_addr" converting the former to the
553 latter. gdbarch_deprecated_function_start_offset is being used to implement
554 a simplified subset of that functionality - the function's address
555 corresponds to the "function pointer" and the function's start
556 corresponds to the "function entry point" - and hence is redundant. */
558 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
559 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
561 /* Return the remote protocol register number associated with this
562 register. Normally the identity mapping. */
564 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
565 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
566 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
568 /* Fetch the target specific address used to represent a load module. */
570 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
572 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
573 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
574 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
576 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
577 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
579 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
581 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
582 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
583 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
585 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
587 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
588 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
589 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
591 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
592 frame-base. Enable frame-base before frame-unwind. */
594 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
596 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
597 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
598 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
600 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
602 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
603 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
604 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
606 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
607 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
608 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
610 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
611 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
613 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
614 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
615 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
617 /* On some machines there are bits in addresses which are not really
618 part of the address, but are used by the kernel, the hardware, etc.
619 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
620 we get a "real" address such as one would find in a symbol table.
621 This is used only for addresses of instructions, and even then I'm
622 not sure it's used in all contexts. It exists to deal with there
623 being a few stray bits in the PC which would mislead us, not as some
624 sort of generic thing to handle alignment or segmentation (it's
625 possible it should be in TARGET_READ_PC instead). */
627 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
628 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
629 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
631 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
632 indicates if the target needs software single step. An ISA method to
635 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
636 breakpoints using the breakpoint system instead of blatting memory directly
639 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
640 target can single step. If not, then implement single step using breakpoints.
642 A return value of 1 means that the software_single_step breakpoints
643 were inserted; 0 means they were not. */
645 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
647 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
648 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
649 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
651 /* Return non-zero if the processor is executing a delay slot and a
652 further single-step is needed before the instruction finishes. */
654 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
656 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
657 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
658 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
660 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
661 disassembler. Perhaps objdump can handle it? */
663 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
664 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
665 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
667 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
668 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
669 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
671 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
672 evaluates non-zero, this is the address where the debugger will place
673 a step-resume breakpoint to get us past the dynamic linker. */
675 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
676 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
677 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
679 /* Some systems also have trampoline code for returning from shared libs. */
681 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
682 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
683 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
685 /* A target might have problems with watchpoints as soon as the stack
686 frame of the current function has been destroyed. This mostly happens
687 as the first action in a function's epilogue. stack_frame_destroyed_p()
688 is defined to return a non-zero value if either the given addr is one
689 instruction after the stack destroying instruction up to the trailing
690 return instruction or if we can figure out that the stack frame has
691 already been invalidated regardless of the value of addr. Targets
692 which don't suffer from that problem could just let this functionality
695 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
696 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
697 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
699 /* Process an ELF symbol in the minimal symbol table in a backend-specific
700 way. Normally this hook is supposed to do nothing, however if required,
701 then this hook can be used to apply tranformations to symbols that are
702 considered special in some way. For example the MIPS backend uses it
703 to interpret `st_other' information to mark compressed code symbols so
704 that they can be treated in the appropriate manner in the processing of
705 the main symbol table and DWARF-2 records. */
707 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
709 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
710 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
711 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
713 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
714 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
715 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
717 /* Process a symbol in the main symbol table in a backend-specific way.
718 Normally this hook is supposed to do nothing, however if required,
719 then this hook can be used to apply tranformations to symbols that
720 are considered special in some way. This is currently used by the
721 MIPS backend to make sure compressed code symbols have the ISA bit
722 set. This in turn is needed for symbol values seen in GDB to match
723 the values used at the runtime by the program itself, for function
724 and label references. */
726 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
727 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
728 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
730 /* Adjust the address retrieved from a DWARF-2 record other than a line
731 entry in a backend-specific way. Normally this hook is supposed to
732 return the address passed unchanged, however if that is incorrect for
733 any reason, then this hook can be used to fix the address up in the
734 required manner. This is currently used by the MIPS backend to make
735 sure addresses in FDE, range records, etc. referring to compressed
736 code have the ISA bit set, matching line information and the symbol
739 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
740 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
741 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
743 /* Adjust the address updated by a line entry in a backend-specific way.
744 Normally this hook is supposed to return the address passed unchanged,
745 however in the case of inconsistencies in these records, this hook can
746 be used to fix them up in the required manner. This is currently used
747 by the MIPS backend to make sure all line addresses in compressed code
748 are presented with the ISA bit set, which is not always the case. This
749 in turn ensures breakpoint addresses are correctly matched against the
752 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
753 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
754 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
756 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
757 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
759 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
760 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
762 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
764 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
765 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
766 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
768 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
770 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
771 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
772 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
);
774 /* Return the appropriate type_flags for the supplied address class.
775 This function should return 1 if the address class was recognized and
776 type_flags was set, zero otherwise. */
778 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
780 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
781 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
782 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
);
784 /* Is a register in a group */
786 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
787 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
788 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
790 /* Fetch the pointer to the ith function argument. */
792 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
794 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
795 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
796 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
798 /* Iterate over all supported register notes in a core file. For each
799 supported register note section, the iterator must call CB and pass
800 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
801 the supported register note sections based on the current register
802 values. Otherwise it should enumerate all supported register note
805 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
807 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
808 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
809 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
811 /* Create core file notes */
813 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
815 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
816 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
817 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
819 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
820 files. Most Linux architectures use the same prpsinfo32 or
821 prpsinfo64 layouts, and so won't need to provide this hook, as we
822 call the Linux generic routines in bfd to write prpsinfo notes by
825 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch
*gdbarch
);
827 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype
) (bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
828 extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
829 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, gdbarch_elfcore_write_linux_prpsinfo_ftype
*elfcore_write_linux_prpsinfo
);
831 /* Find core file memory regions */
833 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
835 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
836 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
837 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
839 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
840 core file into buffer READBUF with length LEN. Return the number of bytes read
841 (zero indicates failure).
842 failed, otherwise, return the red length of READBUF. */
844 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
846 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
847 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
848 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
850 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
851 libraries list from core file into buffer READBUF with length LEN.
852 Return the number of bytes read (zero indicates failure). */
854 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
856 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
857 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
858 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
860 /* How the core target converts a PTID from a core file to a string. */
862 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
864 typedef char * (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
865 extern char * gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
866 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
868 /* BFD target to use when generating a core file. */
870 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
872 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
873 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
875 /* If the elements of C++ vtables are in-place function descriptors rather
876 than normal function pointers (which may point to code or a descriptor),
879 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
880 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
882 /* Set if the least significant bit of the delta is used instead of the least
883 significant bit of the pfn for pointers to virtual member functions. */
885 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
886 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
888 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
890 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
891 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
892 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
894 /* The maximum length of an instruction on this architecture in bytes. */
896 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
898 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
899 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
901 /* Copy the instruction at FROM to TO, and make any adjustments
902 necessary to single-step it at that address.
904 REGS holds the state the thread's registers will have before
905 executing the copied instruction; the PC in REGS will refer to FROM,
906 not the copy at TO. The caller should update it to point at TO later.
908 Return a pointer to data of the architecture's choice to be passed
909 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
910 the instruction's effects have been completely simulated, with the
911 resulting state written back to REGS.
913 For a general explanation of displaced stepping and how GDB uses it,
914 see the comments in infrun.c.
916 The TO area is only guaranteed to have space for
917 gdbarch_max_insn_length (arch) bytes, so this function must not
918 write more bytes than that to that area.
920 If you do not provide this function, GDB assumes that the
921 architecture does not support displaced stepping.
923 If your architecture doesn't need to adjust instructions before
924 single-stepping them, consider using simple_displaced_step_copy_insn
927 If the instruction cannot execute out of line, return NULL. The
928 core falls back to stepping past the instruction in-line instead in
931 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
933 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
934 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
935 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
937 /* Return true if GDB should use hardware single-stepping to execute
938 the displaced instruction identified by CLOSURE. If false,
939 GDB will simply restart execution at the displaced instruction
940 location, and it is up to the target to ensure GDB will receive
941 control again (e.g. by placing a software breakpoint instruction
942 into the displaced instruction buffer).
944 The default implementation returns false on all targets that
945 provide a gdbarch_software_single_step routine, and true otherwise. */
947 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
948 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
949 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
951 /* Fix up the state resulting from successfully single-stepping a
952 displaced instruction, to give the result we would have gotten from
953 stepping the instruction in its original location.
955 REGS is the register state resulting from single-stepping the
956 displaced instruction.
958 CLOSURE is the result from the matching call to
959 gdbarch_displaced_step_copy_insn.
961 If you provide gdbarch_displaced_step_copy_insn.but not this
962 function, then GDB assumes that no fixup is needed after
963 single-stepping the instruction.
965 For a general explanation of displaced stepping and how GDB uses it,
966 see the comments in infrun.c. */
968 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
970 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
971 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
972 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
974 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
976 If you provide gdbarch_displaced_step_copy_insn, you must provide
977 this function as well.
979 If your architecture uses closures that don't need to be freed, then
980 you can use simple_displaced_step_free_closure here.
982 For a general explanation of displaced stepping and how GDB uses it,
983 see the comments in infrun.c. */
985 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
986 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
987 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
989 /* Return the address of an appropriate place to put displaced
990 instructions while we step over them. There need only be one such
991 place, since we're only stepping one thread over a breakpoint at a
994 For a general explanation of displaced stepping and how GDB uses it,
995 see the comments in infrun.c. */
997 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
998 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
999 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1001 /* Relocate an instruction to execute at a different address. OLDLOC
1002 is the address in the inferior memory where the instruction to
1003 relocate is currently at. On input, TO points to the destination
1004 where we want the instruction to be copied (and possibly adjusted)
1005 to. On output, it points to one past the end of the resulting
1006 instruction(s). The effect of executing the instruction at TO shall
1007 be the same as if executing it at FROM. For example, call
1008 instructions that implicitly push the return address on the stack
1009 should be adjusted to return to the instruction after OLDLOC;
1010 relative branches, and other PC-relative instructions need the
1011 offset adjusted; etc. */
1013 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1015 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1016 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1017 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1019 /* Refresh overlay mapped state for section OSECT. */
1021 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1023 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1024 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1025 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1027 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1029 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1030 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1031 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1033 /* Handle special encoding of static variables in stabs debug info. */
1035 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
1037 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
1038 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
1039 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
1041 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1043 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1044 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1046 /* Parse the instruction at ADDR storing in the record execution log
1047 the registers REGCACHE and memory ranges that will be affected when
1048 the instruction executes, along with their current values.
1049 Return -1 if something goes wrong, 0 otherwise. */
1051 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1053 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1054 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1055 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1057 /* Save process state after a signal.
1058 Return -1 if something goes wrong, 0 otherwise. */
1060 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1062 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1063 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1064 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1066 /* Signal translation: translate inferior's signal (target's) number
1067 into GDB's representation. The implementation of this method must
1068 be host independent. IOW, don't rely on symbols of the NAT_FILE
1069 header (the nm-*.h files), the host <signal.h> header, or similar
1070 headers. This is mainly used when cross-debugging core files ---
1071 "Live" targets hide the translation behind the target interface
1072 (target_wait, target_resume, etc.). */
1074 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1076 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1077 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1078 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1080 /* Signal translation: translate the GDB's internal signal number into
1081 the inferior's signal (target's) representation. The implementation
1082 of this method must be host independent. IOW, don't rely on symbols
1083 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1084 header, or similar headers.
1085 Return the target signal number if found, or -1 if the GDB internal
1086 signal number is invalid. */
1088 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1090 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1091 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1092 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1094 /* Extra signal info inspection.
1096 Return a type suitable to inspect extra signal information. */
1098 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1100 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1101 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1102 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1104 /* Record architecture-specific information from the symbol table. */
1106 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1108 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1109 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1110 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1112 /* Function for the 'catch syscall' feature.
1113 Get architecture-specific system calls information from registers. */
1115 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1117 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1118 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, ptid_t ptid
);
1119 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1121 /* The filename of the XML syscall for this architecture. */
1123 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1124 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1126 /* Information about system calls from this architecture */
1128 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1129 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1131 /* SystemTap related fields and functions.
1132 A NULL-terminated array of prefixes used to mark an integer constant
1133 on the architecture's assembly.
1134 For example, on x86 integer constants are written as:
1136 $10 ;; integer constant 10
1138 in this case, this prefix would be the character `$'. */
1140 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1141 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1143 /* A NULL-terminated array of suffixes used to mark an integer constant
1144 on the architecture's assembly. */
1146 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1147 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1149 /* A NULL-terminated array of prefixes used to mark a register name on
1150 the architecture's assembly.
1151 For example, on x86 the register name is written as:
1153 %eax ;; register eax
1155 in this case, this prefix would be the character `%'. */
1157 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1158 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1160 /* A NULL-terminated array of suffixes used to mark a register name on
1161 the architecture's assembly. */
1163 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1164 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1166 /* A NULL-terminated array of prefixes used to mark a register
1167 indirection on the architecture's assembly.
1168 For example, on x86 the register indirection is written as:
1170 (%eax) ;; indirecting eax
1172 in this case, this prefix would be the charater `('.
1174 Please note that we use the indirection prefix also for register
1175 displacement, e.g., `4(%eax)' on x86. */
1177 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1178 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1180 /* A NULL-terminated array of suffixes used to mark a register
1181 indirection on the architecture's assembly.
1182 For example, on x86 the register indirection is written as:
1184 (%eax) ;; indirecting eax
1186 in this case, this prefix would be the charater `)'.
1188 Please note that we use the indirection suffix also for register
1189 displacement, e.g., `4(%eax)' on x86. */
1191 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1192 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1194 /* Prefix(es) used to name a register using GDB's nomenclature.
1196 For example, on PPC a register is represented by a number in the assembly
1197 language (e.g., `10' is the 10th general-purpose register). However,
1198 inside GDB this same register has an `r' appended to its name, so the 10th
1199 register would be represented as `r10' internally. */
1201 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1202 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1204 /* Suffix used to name a register using GDB's nomenclature. */
1206 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1207 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1209 /* Check if S is a single operand.
1211 Single operands can be:
1212 - Literal integers, e.g. `$10' on x86
1213 - Register access, e.g. `%eax' on x86
1214 - Register indirection, e.g. `(%eax)' on x86
1215 - Register displacement, e.g. `4(%eax)' on x86
1217 This function should check for these patterns on the string
1218 and return 1 if some were found, or zero otherwise. Please try to match
1219 as much info as you can from the string, i.e., if you have to match
1220 something like `(%', do not match just the `('. */
1222 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1224 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1225 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1226 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1228 /* Function used to handle a "special case" in the parser.
1230 A "special case" is considered to be an unknown token, i.e., a token
1231 that the parser does not know how to parse. A good example of special
1232 case would be ARM's register displacement syntax:
1234 [R0, #4] ;; displacing R0 by 4
1236 Since the parser assumes that a register displacement is of the form:
1238 <number> <indirection_prefix> <register_name> <indirection_suffix>
1240 it means that it will not be able to recognize and parse this odd syntax.
1241 Therefore, we should add a special case function that will handle this token.
1243 This function should generate the proper expression form of the expression
1244 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1245 and so on). It should also return 1 if the parsing was successful, or zero
1246 if the token was not recognized as a special token (in this case, returning
1247 zero means that the special parser is deferring the parsing to the generic
1248 parser), and should advance the buffer pointer (p->arg). */
1250 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1252 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1253 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1254 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1256 /* DTrace related functions.
1257 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1258 NARG must be >= 0. */
1260 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1262 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1263 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1264 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1266 /* True if the given ADDR does not contain the instruction sequence
1267 corresponding to a disabled DTrace is-enabled probe. */
1269 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1271 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1272 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1273 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1275 /* Enable a DTrace is-enabled probe at ADDR. */
1277 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1279 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1280 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1281 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1283 /* Disable a DTrace is-enabled probe at ADDR. */
1285 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1287 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1288 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1289 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1291 /* True if the list of shared libraries is one and only for all
1292 processes, as opposed to a list of shared libraries per inferior.
1293 This usually means that all processes, although may or may not share
1294 an address space, will see the same set of symbols at the same
1297 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1298 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1300 /* On some targets, even though each inferior has its own private
1301 address space, the debug interface takes care of making breakpoints
1302 visible to all address spaces automatically. For such cases,
1303 this property should be set to true. */
1305 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1306 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1308 /* True if inferiors share an address space (e.g., uClinux). */
1310 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1311 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1312 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1314 /* True if a fast tracepoint can be set at an address. */
1316 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1317 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1318 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1320 /* Return the "auto" target charset. */
1322 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1323 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1324 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1326 /* Return the "auto" target wide charset. */
1328 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1329 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1330 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1332 /* If non-empty, this is a file extension that will be opened in place
1333 of the file extension reported by the shared library list.
1335 This is most useful for toolchains that use a post-linker tool,
1336 where the names of the files run on the target differ in extension
1337 compared to the names of the files GDB should load for debug info. */
1339 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1340 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1342 /* If true, the target OS has DOS-based file system semantics. That
1343 is, absolute paths include a drive name, and the backslash is
1344 considered a directory separator. */
1346 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1347 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1349 /* Generate bytecodes to collect the return address in a frame.
1350 Since the bytecodes run on the target, possibly with GDB not even
1351 connected, the full unwinding machinery is not available, and
1352 typically this function will issue bytecodes for one or more likely
1353 places that the return address may be found. */
1355 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1356 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1357 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1359 /* Implement the "info proc" command. */
1361 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1363 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1364 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1365 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1367 /* Implement the "info proc" command for core files. Noe that there
1368 are two "info_proc"-like methods on gdbarch -- one for core files,
1369 one for live targets. */
1371 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1373 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1374 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1375 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1377 /* Iterate over all objfiles in the order that makes the most sense
1378 for the architecture to make global symbol searches.
1380 CB is a callback function where OBJFILE is the objfile to be searched,
1381 and CB_DATA a pointer to user-defined data (the same data that is passed
1382 when calling this gdbarch method). The iteration stops if this function
1385 CB_DATA is a pointer to some user-defined data to be passed to
1388 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1389 inspected when the symbol search was requested. */
1391 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype
) (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype
*cb
, void *cb_data
, struct objfile
*current_objfile
);
1392 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype
*cb
, void *cb_data
, struct objfile
*current_objfile
);
1393 extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch
*gdbarch
, gdbarch_iterate_over_objfiles_in_search_order_ftype
*iterate_over_objfiles_in_search_order
);
1395 /* Ravenscar arch-dependent ops. */
1397 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1398 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1400 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1402 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1403 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1404 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1406 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1408 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1409 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1410 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1412 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1414 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1415 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1416 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1418 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1419 Return 0 if *READPTR is already at the end of the buffer.
1420 Return -1 if there is insufficient buffer for a whole entry.
1421 Return 1 if an entry was read into *TYPEP and *VALP. */
1423 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1425 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1426 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1427 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1429 /* Find the address range of the current inferior's vsyscall/vDSO, and
1430 write it to *RANGE. If the vsyscall's length can't be determined, a
1431 range with zero length is returned. Returns true if the vsyscall is
1432 found, false otherwise. */
1434 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1435 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1436 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1438 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1439 PROT has GDB_MMAP_PROT_* bitmask format.
1440 Throw an error if it is not possible. Returned address is always valid. */
1442 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1443 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1444 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1446 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1447 Print a warning if it is not possible. */
1449 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1450 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1451 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1453 /* Return string (caller has to use xfree for it) with options for GCC
1454 to produce code for this target, typically "-m64", "-m32" or "-m31".
1455 These options are put before CU's DW_AT_producer compilation options so that
1456 they can override it. Method may also return NULL. */
1458 typedef char * (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1459 extern char * gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1460 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1462 /* Return a regular expression that matches names used by this
1463 architecture in GNU configury triplets. The result is statically
1464 allocated and must not be freed. The default implementation simply
1465 returns the BFD architecture name, which is correct in nearly every
1468 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1469 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1470 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1472 /* Return the size in 8-bit bytes of an addressable memory unit on this
1473 architecture. This corresponds to the number of 8-bit bytes associated to
1474 each address in memory. */
1476 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1477 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1478 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1480 /* Definition for an unknown syscall, used basically in error-cases. */
1481 #define UNKNOWN_SYSCALL (-1)
1483 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1486 /* Mechanism for co-ordinating the selection of a specific
1489 GDB targets (*-tdep.c) can register an interest in a specific
1490 architecture. Other GDB components can register a need to maintain
1491 per-architecture data.
1493 The mechanisms below ensures that there is only a loose connection
1494 between the set-architecture command and the various GDB
1495 components. Each component can independently register their need
1496 to maintain architecture specific data with gdbarch.
1500 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1503 The more traditional mega-struct containing architecture specific
1504 data for all the various GDB components was also considered. Since
1505 GDB is built from a variable number of (fairly independent)
1506 components it was determined that the global aproach was not
1510 /* Register a new architectural family with GDB.
1512 Register support for the specified ARCHITECTURE with GDB. When
1513 gdbarch determines that the specified architecture has been
1514 selected, the corresponding INIT function is called.
1518 The INIT function takes two parameters: INFO which contains the
1519 information available to gdbarch about the (possibly new)
1520 architecture; ARCHES which is a list of the previously created
1521 ``struct gdbarch'' for this architecture.
1523 The INFO parameter is, as far as possible, be pre-initialized with
1524 information obtained from INFO.ABFD or the global defaults.
1526 The ARCHES parameter is a linked list (sorted most recently used)
1527 of all the previously created architures for this architecture
1528 family. The (possibly NULL) ARCHES->gdbarch can used to access
1529 values from the previously selected architecture for this
1530 architecture family.
1532 The INIT function shall return any of: NULL - indicating that it
1533 doesn't recognize the selected architecture; an existing ``struct
1534 gdbarch'' from the ARCHES list - indicating that the new
1535 architecture is just a synonym for an earlier architecture (see
1536 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1537 - that describes the selected architecture (see gdbarch_alloc()).
1539 The DUMP_TDEP function shall print out all target specific values.
1540 Care should be taken to ensure that the function works in both the
1541 multi-arch and non- multi-arch cases. */
1545 struct gdbarch
*gdbarch
;
1546 struct gdbarch_list
*next
;
1551 /* Use default: NULL (ZERO). */
1552 const struct bfd_arch_info
*bfd_arch_info
;
1554 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1555 enum bfd_endian byte_order
;
1557 enum bfd_endian byte_order_for_code
;
1559 /* Use default: NULL (ZERO). */
1562 /* Use default: NULL (ZERO). */
1565 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1566 enum gdb_osabi osabi
;
1568 /* Use default: NULL (ZERO). */
1569 const struct target_desc
*target_desc
;
1572 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1573 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1575 /* DEPRECATED - use gdbarch_register() */
1576 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1578 extern void gdbarch_register (enum bfd_architecture architecture
,
1579 gdbarch_init_ftype
*,
1580 gdbarch_dump_tdep_ftype
*);
1583 /* Return a freshly allocated, NULL terminated, array of the valid
1584 architecture names. Since architectures are registered during the
1585 _initialize phase this function only returns useful information
1586 once initialization has been completed. */
1588 extern const char **gdbarch_printable_names (void);
1591 /* Helper function. Search the list of ARCHES for a GDBARCH that
1592 matches the information provided by INFO. */
1594 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1597 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1598 basic initialization using values obtained from the INFO and TDEP
1599 parameters. set_gdbarch_*() functions are called to complete the
1600 initialization of the object. */
1602 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1605 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1606 It is assumed that the caller freeds the ``struct
1609 extern void gdbarch_free (struct gdbarch
*);
1612 /* Helper function. Allocate memory from the ``struct gdbarch''
1613 obstack. The memory is freed when the corresponding architecture
1616 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
1617 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1618 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1620 /* Duplicate STRING, returning an equivalent string that's allocated on the
1621 obstack associated with GDBARCH. The string is freed when the corresponding
1622 architecture is also freed. */
1624 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1626 /* Helper function. Force an update of the current architecture.
1628 The actual architecture selected is determined by INFO, ``(gdb) set
1629 architecture'' et.al., the existing architecture and BFD's default
1630 architecture. INFO should be initialized to zero and then selected
1631 fields should be updated.
1633 Returns non-zero if the update succeeds. */
1635 extern int gdbarch_update_p (struct gdbarch_info info
);
1638 /* Helper function. Find an architecture matching info.
1640 INFO should be initialized using gdbarch_info_init, relevant fields
1641 set, and then finished using gdbarch_info_fill.
1643 Returns the corresponding architecture, or NULL if no matching
1644 architecture was found. */
1646 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1649 /* Helper function. Set the target gdbarch to "gdbarch". */
1651 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1654 /* Register per-architecture data-pointer.
1656 Reserve space for a per-architecture data-pointer. An identifier
1657 for the reserved data-pointer is returned. That identifer should
1658 be saved in a local static variable.
1660 Memory for the per-architecture data shall be allocated using
1661 gdbarch_obstack_zalloc. That memory will be deleted when the
1662 corresponding architecture object is deleted.
1664 When a previously created architecture is re-selected, the
1665 per-architecture data-pointer for that previous architecture is
1666 restored. INIT() is not re-called.
1668 Multiple registrarants for any architecture are allowed (and
1669 strongly encouraged). */
1671 struct gdbarch_data
;
1673 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1674 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1675 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1676 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1677 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1678 struct gdbarch_data
*data
,
1681 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1684 /* Set the dynamic target-system-dependent parameters (architecture,
1685 byte-order, ...) using information found in the BFD. */
1687 extern void set_gdbarch_from_file (bfd
*);
1690 /* Initialize the current architecture to the "first" one we find on
1693 extern void initialize_current_architecture (void);
1695 /* gdbarch trace variable */
1696 extern unsigned int gdbarch_debug
;
1698 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);