1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2016 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
;
70 /* The architecture associated with the inferior through the
71 connection to the target.
73 The architecture vector provides some information that is really a
74 property of the inferior, accessed through a particular target:
75 ptrace operations; the layout of certain RSP packets; the solib_ops
76 vector; etc. To differentiate architecture accesses to
77 per-inferior/target properties from
78 per-thread/per-frame/per-objfile properties, accesses to
79 per-inferior/target properties should be made through this
82 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
83 extern struct gdbarch
*target_gdbarch (void);
85 /* Callback type for the 'iterate_over_objfiles_in_search_order'
88 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
89 (struct objfile
*objfile
, void *cb_data
);
91 /* Callback type for regset section iterators. The callback usually
92 invokes the REGSET's supply or collect method, to which it must
93 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
94 section name, and HUMAN_NAME is used for diagnostic messages.
95 CB_DATA should have been passed unchanged through the iterator. */
97 typedef void (iterate_over_regset_sections_cb
)
98 (const char *sect_name
, int size
, const struct regset
*regset
,
99 const char *human_name
, void *cb_data
);
102 /* The following are pre-initialized by GDBARCH. */
104 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
105 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
107 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
108 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
110 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
111 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
113 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
114 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
116 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
117 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
120 /* The following are initialized by the target dependent code. */
122 /* The bit byte-order has to do just with numbering of bits in debugging symbols
123 and such. Conceptually, it's quite separate from byte/word byte order. */
125 extern int gdbarch_bits_big_endian (struct gdbarch
*gdbarch
);
126 extern void set_gdbarch_bits_big_endian (struct gdbarch
*gdbarch
, int bits_big_endian
);
128 /* Number of bits in a char or unsigned char for the target machine.
129 Just like CHAR_BIT in <limits.h> but describes the target machine.
130 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
132 Number of bits in a short or unsigned short for the target machine. */
134 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
135 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
137 /* Number of bits in an int or unsigned int for the target machine. */
139 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
140 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
142 /* Number of bits in a long or unsigned long for the target machine. */
144 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
145 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
147 /* Number of bits in a long long or unsigned long long for the target
150 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
151 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
153 /* Alignment of a long long or unsigned long long for the target
156 extern int gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
);
157 extern void set_gdbarch_long_long_align_bit (struct gdbarch
*gdbarch
, int long_long_align_bit
);
159 /* The ABI default bit-size and format for "half", "float", "double", and
160 "long double". These bit/format pairs should eventually be combined
161 into a single object. For the moment, just initialize them as a pair.
162 Each format describes both the big and little endian layouts (if
165 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
166 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
168 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
169 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
171 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
172 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
174 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
175 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
177 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
178 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
180 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
181 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
183 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
184 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
186 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
189 /* For most targets, a pointer on the target and its representation as an
190 address in GDB have the same size and "look the same". For such a
191 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
192 / addr_bit will be set from it.
194 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
195 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
196 gdbarch_address_to_pointer as well.
198 ptr_bit is the size of a pointer on the target */
200 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
201 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
203 /* addr_bit is the size of a target address as represented in gdb */
205 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
206 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
208 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
209 info. For .debug_frame FDEs, this is supposed to be the target address
210 size from the associated CU header, and which is equivalent to the
211 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
212 Unfortunately there is no good way to determine this value. Therefore
213 dwarf2_addr_size simply defaults to the target pointer size.
215 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
216 defined using the target's pointer size so far.
218 Note that dwarf2_addr_size only needs to be redefined by a target if the
219 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
220 and if Dwarf versions < 4 need to be supported. */
222 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
223 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
225 /* One if `char' acts like `signed char', zero if `unsigned char'. */
227 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
228 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
230 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
232 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (struct regcache
*regcache
);
233 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
234 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
236 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
238 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
239 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
240 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
242 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
243 whole scheme for dealing with "frames" and "frame pointers" needs a
244 serious shakedown. */
246 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
247 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
248 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
250 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
252 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
253 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
254 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
256 /* Read a register into a new struct value. If the register is wholly
257 or partly unavailable, this should call mark_value_bytes_unavailable
258 as appropriate. If this is defined, then pseudo_register_read will
261 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
263 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
264 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
);
265 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
267 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
269 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
270 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
271 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
273 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
274 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
276 /* This macro gives the number of pseudo-registers that live in the
277 register namespace but do not get fetched or stored on the target.
278 These pseudo-registers may be aliases for other registers,
279 combinations of other registers, or they may be computed by GDB. */
281 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
282 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
284 /* Assemble agent expression bytecode to collect pseudo-register REG.
285 Return -1 if something goes wrong, 0 otherwise. */
287 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
289 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
290 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
291 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
293 /* Assemble agent expression bytecode to push the value of pseudo-register
294 REG on the interpreter stack.
295 Return -1 if something goes wrong, 0 otherwise. */
297 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
299 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
300 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
301 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
303 /* GDB's standard (or well known) register numbers. These can map onto
304 a real register or a pseudo (computed) register or not be defined at
306 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
308 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
309 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
311 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
312 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
314 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
315 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
317 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
318 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
320 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
322 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
323 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
324 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
326 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
328 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
329 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
330 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
332 /* Convert from an sdb register number to an internal gdb register number. */
334 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
335 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
336 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
338 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
339 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
341 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
342 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
343 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
345 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
346 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
347 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
349 /* Return the type of a register specified by the architecture. Only
350 the register cache should call this function directly; others should
351 use "register_type". */
353 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
355 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
356 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
357 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
359 extern int gdbarch_dummy_id_p (struct gdbarch
*gdbarch
);
361 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
362 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
363 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
365 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
366 deprecated_fp_regnum. */
368 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
369 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
371 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
373 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
);
374 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
);
375 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
377 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
378 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
380 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
382 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
);
383 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
);
384 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
386 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
387 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
388 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
390 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
391 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
392 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
394 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
396 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
397 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
398 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
400 /* MAP a GDB RAW register number onto a simulator register number. See
401 also include/...-sim.h. */
403 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
404 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
405 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
407 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
408 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
409 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
411 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
412 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
413 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
415 /* Determine the address where a longjmp will land and save this address
416 in PC. Return nonzero on success.
418 FRAME corresponds to the longjmp frame. */
420 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
422 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
423 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
424 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
426 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
427 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
429 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
430 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
431 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
433 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
434 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
);
435 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
437 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
438 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
439 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
441 /* Construct a value representing the contents of register REGNUM in
442 frame FRAME_ID, interpreted as type TYPE. The routine needs to
443 allocate and return a struct value with all value attributes
444 (but not the value contents) filled in. */
446 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
447 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
448 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
450 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
451 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
452 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
454 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
455 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
456 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
458 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
460 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
461 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
462 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
464 /* Return the return-value convention that will be used by FUNCTION
465 to return a value of type VALTYPE. FUNCTION may be NULL in which
466 case the return convention is computed based only on VALTYPE.
468 If READBUF is not NULL, extract the return value and save it in this buffer.
470 If WRITEBUF is not NULL, it contains a return value which will be
471 stored into the appropriate register. This can be used when we want
472 to force the value returned by a function (see the "return" command
475 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
477 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
);
478 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
);
479 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
481 /* Return true if the return value of function is stored in the first hidden
482 parameter. In theory, this feature should be language-dependent, specified
483 by language and its ABI, such as C++. Unfortunately, compiler may
484 implement it to a target-dependent feature. So that we need such hook here
485 to be aware of this in GDB. */
487 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
488 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
489 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
);
491 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
492 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
493 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
495 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
497 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
498 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
499 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
501 /* On some platforms, a single function may provide multiple entry points,
502 e.g. one that is used for function-pointer calls and a different one
503 that is used for direct function calls.
504 In order to ensure that breakpoints set on the function will trigger
505 no matter via which entry point the function is entered, a platform
506 may provide the skip_entrypoint callback. It is called with IP set
507 to the main entry point of a function (as determined by the symbol table),
508 and should return the address of the innermost entry point, where the
509 actual breakpoint needs to be set. Note that skip_entrypoint is used
510 by GDB common code even when debugging optimized code, where skip_prologue
513 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
515 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
516 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
517 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
519 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
520 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
521 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
523 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
524 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
525 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
527 /* Return the adjusted address and kind to use for Z0/Z1 packets.
528 KIND is usually the memory length of the breakpoint, but may have a
529 different target-specific meaning. */
531 typedef void (gdbarch_remote_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
532 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *kindptr
);
533 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_remote_breakpoint_from_pc_ftype
*remote_breakpoint_from_pc
);
535 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
537 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
538 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
539 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
541 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
542 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
543 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
545 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
546 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
547 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
549 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
550 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
552 /* A function can be addressed by either it's "pointer" (possibly a
553 descriptor address) or "entry point" (first executable instruction).
554 The method "convert_from_func_ptr_addr" converting the former to the
555 latter. gdbarch_deprecated_function_start_offset is being used to implement
556 a simplified subset of that functionality - the function's address
557 corresponds to the "function pointer" and the function's start
558 corresponds to the "function entry point" - and hence is redundant. */
560 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
561 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
563 /* Return the remote protocol register number associated with this
564 register. Normally the identity mapping. */
566 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
567 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
568 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
570 /* Fetch the target specific address used to represent a load module. */
572 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
574 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
575 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
576 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
578 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
579 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
581 extern int gdbarch_unwind_pc_p (struct gdbarch
*gdbarch
);
583 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
584 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
585 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
587 extern int gdbarch_unwind_sp_p (struct gdbarch
*gdbarch
);
589 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
590 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
591 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
593 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
594 frame-base. Enable frame-base before frame-unwind. */
596 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
598 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
599 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
600 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
602 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
604 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
605 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
606 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
608 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
609 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
610 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
612 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
613 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
615 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
616 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
617 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
619 /* On some machines there are bits in addresses which are not really
620 part of the address, but are used by the kernel, the hardware, etc.
621 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
622 we get a "real" address such as one would find in a symbol table.
623 This is used only for addresses of instructions, and even then I'm
624 not sure it's used in all contexts. It exists to deal with there
625 being a few stray bits in the PC which would mislead us, not as some
626 sort of generic thing to handle alignment or segmentation (it's
627 possible it should be in TARGET_READ_PC instead). */
629 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
630 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
631 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
633 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
634 indicates if the target needs software single step. An ISA method to
637 FIXME/cagney/2001-01-18: This should be replaced with something that inserts
638 breakpoints using the breakpoint system instead of blatting memory directly
641 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
642 target can single step. If not, then implement single step using breakpoints.
644 A return value of 1 means that the software_single_step breakpoints
645 were inserted; 0 means they were not. */
647 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
649 typedef int (gdbarch_software_single_step_ftype
) (struct frame_info
*frame
);
650 extern int gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
651 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
653 /* Return non-zero if the processor is executing a delay slot and a
654 further single-step is needed before the instruction finishes. */
656 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
658 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
659 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
660 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
662 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
663 disassembler. Perhaps objdump can handle it? */
665 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
666 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
667 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
669 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
670 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
671 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
673 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
674 evaluates non-zero, this is the address where the debugger will place
675 a step-resume breakpoint to get us past the dynamic linker. */
677 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
678 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
679 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
681 /* Some systems also have trampoline code for returning from shared libs. */
683 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
684 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
685 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
687 /* A target might have problems with watchpoints as soon as the stack
688 frame of the current function has been destroyed. This mostly happens
689 as the first action in a function's epilogue. stack_frame_destroyed_p()
690 is defined to return a non-zero value if either the given addr is one
691 instruction after the stack destroying instruction up to the trailing
692 return instruction or if we can figure out that the stack frame has
693 already been invalidated regardless of the value of addr. Targets
694 which don't suffer from that problem could just let this functionality
697 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
698 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
699 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
701 /* Process an ELF symbol in the minimal symbol table in a backend-specific
702 way. Normally this hook is supposed to do nothing, however if required,
703 then this hook can be used to apply tranformations to symbols that are
704 considered special in some way. For example the MIPS backend uses it
705 to interpret `st_other' information to mark compressed code symbols so
706 that they can be treated in the appropriate manner in the processing of
707 the main symbol table and DWARF-2 records. */
709 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
711 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
712 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
713 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
715 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
716 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
717 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
719 /* Process a symbol in the main symbol table in a backend-specific way.
720 Normally this hook is supposed to do nothing, however if required,
721 then this hook can be used to apply tranformations to symbols that
722 are considered special in some way. This is currently used by the
723 MIPS backend to make sure compressed code symbols have the ISA bit
724 set. This in turn is needed for symbol values seen in GDB to match
725 the values used at the runtime by the program itself, for function
726 and label references. */
728 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
729 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
730 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
732 /* Adjust the address retrieved from a DWARF-2 record other than a line
733 entry in a backend-specific way. Normally this hook is supposed to
734 return the address passed unchanged, however if that is incorrect for
735 any reason, then this hook can be used to fix the address up in the
736 required manner. This is currently used by the MIPS backend to make
737 sure addresses in FDE, range records, etc. referring to compressed
738 code have the ISA bit set, matching line information and the symbol
741 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
742 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
743 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
745 /* Adjust the address updated by a line entry in a backend-specific way.
746 Normally this hook is supposed to return the address passed unchanged,
747 however in the case of inconsistencies in these records, this hook can
748 be used to fix them up in the required manner. This is currently used
749 by the MIPS backend to make sure all line addresses in compressed code
750 are presented with the ISA bit set, which is not always the case. This
751 in turn ensures breakpoint addresses are correctly matched against the
754 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
755 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
756 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
758 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
759 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
761 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
762 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
764 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
766 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
767 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
768 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
770 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
772 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
773 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
774 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
);
776 /* Return the appropriate type_flags for the supplied address class.
777 This function should return 1 if the address class was recognized and
778 type_flags was set, zero otherwise. */
780 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
782 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
783 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
784 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
);
786 /* Is a register in a group */
788 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
789 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
790 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
792 /* Fetch the pointer to the ith function argument. */
794 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
796 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
797 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
798 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
800 /* Iterate over all supported register notes in a core file. For each
801 supported register note section, the iterator must call CB and pass
802 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
803 the supported register note sections based on the current register
804 values. Otherwise it should enumerate all supported register note
807 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
809 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
810 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
811 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
813 /* Create core file notes */
815 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
817 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
818 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
819 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
821 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
822 files. Most Linux architectures use the same prpsinfo32 or
823 prpsinfo64 layouts, and so won't need to provide this hook, as we
824 call the Linux generic routines in bfd to write prpsinfo notes by
827 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch
*gdbarch
);
829 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype
) (bfd
*obfd
, char *note_data
, int *note_size
, const struct elf_internal_linux_prpsinfo
*info
);
830 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
);
831 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch
*gdbarch
, gdbarch_elfcore_write_linux_prpsinfo_ftype
*elfcore_write_linux_prpsinfo
);
833 /* Find core file memory regions */
835 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
837 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
838 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
839 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
841 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
842 core file into buffer READBUF with length LEN. Return the number of bytes read
843 (zero indicates failure).
844 failed, otherwise, return the red length of READBUF. */
846 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
848 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
849 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
850 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
852 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
853 libraries list from core file into buffer READBUF with length LEN.
854 Return the number of bytes read (zero indicates failure). */
856 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
858 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
859 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
860 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
862 /* How the core target converts a PTID from a core file to a string. */
864 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
866 typedef char * (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
867 extern char * gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
868 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
870 /* How the core target extracts the name of a thread from a core file. */
872 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
874 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
875 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
876 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
878 /* BFD target to use when generating a core file. */
880 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
882 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
883 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
885 /* If the elements of C++ vtables are in-place function descriptors rather
886 than normal function pointers (which may point to code or a descriptor),
889 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
890 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
892 /* Set if the least significant bit of the delta is used instead of the least
893 significant bit of the pfn for pointers to virtual member functions. */
895 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
896 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
898 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
900 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
901 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
902 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
904 /* The maximum length of an instruction on this architecture in bytes. */
906 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
908 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
909 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
911 /* Copy the instruction at FROM to TO, and make any adjustments
912 necessary to single-step it at that address.
914 REGS holds the state the thread's registers will have before
915 executing the copied instruction; the PC in REGS will refer to FROM,
916 not the copy at TO. The caller should update it to point at TO later.
918 Return a pointer to data of the architecture's choice to be passed
919 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
920 the instruction's effects have been completely simulated, with the
921 resulting state written back to REGS.
923 For a general explanation of displaced stepping and how GDB uses it,
924 see the comments in infrun.c.
926 The TO area is only guaranteed to have space for
927 gdbarch_max_insn_length (arch) bytes, so this function must not
928 write more bytes than that to that area.
930 If you do not provide this function, GDB assumes that the
931 architecture does not support displaced stepping.
933 If your architecture doesn't need to adjust instructions before
934 single-stepping them, consider using simple_displaced_step_copy_insn
937 If the instruction cannot execute out of line, return NULL. The
938 core falls back to stepping past the instruction in-line instead in
941 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
943 typedef struct displaced_step_closure
* (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
944 extern struct displaced_step_closure
* gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
945 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
947 /* Return true if GDB should use hardware single-stepping to execute
948 the displaced instruction identified by CLOSURE. If false,
949 GDB will simply restart execution at the displaced instruction
950 location, and it is up to the target to ensure GDB will receive
951 control again (e.g. by placing a software breakpoint instruction
952 into the displaced instruction buffer).
954 The default implementation returns false on all targets that
955 provide a gdbarch_software_single_step routine, and true otherwise. */
957 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
958 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
959 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
961 /* Fix up the state resulting from successfully single-stepping a
962 displaced instruction, to give the result we would have gotten from
963 stepping the instruction in its original location.
965 REGS is the register state resulting from single-stepping the
966 displaced instruction.
968 CLOSURE is the result from the matching call to
969 gdbarch_displaced_step_copy_insn.
971 If you provide gdbarch_displaced_step_copy_insn.but not this
972 function, then GDB assumes that no fixup is needed after
973 single-stepping the instruction.
975 For a general explanation of displaced stepping and how GDB uses it,
976 see the comments in infrun.c. */
978 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
980 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
981 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
982 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
984 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
986 If you provide gdbarch_displaced_step_copy_insn, you must provide
987 this function as well.
989 If your architecture uses closures that don't need to be freed, then
990 you can use simple_displaced_step_free_closure here.
992 For a general explanation of displaced stepping and how GDB uses it,
993 see the comments in infrun.c. */
995 typedef void (gdbarch_displaced_step_free_closure_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
996 extern void gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
997 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch
*gdbarch
, gdbarch_displaced_step_free_closure_ftype
*displaced_step_free_closure
);
999 /* Return the address of an appropriate place to put displaced
1000 instructions while we step over them. There need only be one such
1001 place, since we're only stepping one thread over a breakpoint at a
1004 For a general explanation of displaced stepping and how GDB uses it,
1005 see the comments in infrun.c. */
1007 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
1008 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
1009 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1011 /* Relocate an instruction to execute at a different address. OLDLOC
1012 is the address in the inferior memory where the instruction to
1013 relocate is currently at. On input, TO points to the destination
1014 where we want the instruction to be copied (and possibly adjusted)
1015 to. On output, it points to one past the end of the resulting
1016 instruction(s). The effect of executing the instruction at TO shall
1017 be the same as if executing it at FROM. For example, call
1018 instructions that implicitly push the return address on the stack
1019 should be adjusted to return to the instruction after OLDLOC;
1020 relative branches, and other PC-relative instructions need the
1021 offset adjusted; etc. */
1023 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1025 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1026 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1027 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1029 /* Refresh overlay mapped state for section OSECT. */
1031 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1033 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1034 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1035 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1037 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1039 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1040 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1041 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1043 /* Handle special encoding of static variables in stabs debug info. */
1045 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
1047 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
1048 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
1049 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
1051 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1053 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1054 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1056 /* Parse the instruction at ADDR storing in the record execution log
1057 the registers REGCACHE and memory ranges that will be affected when
1058 the instruction executes, along with their current values.
1059 Return -1 if something goes wrong, 0 otherwise. */
1061 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1063 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1064 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1065 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1067 /* Save process state after a signal.
1068 Return -1 if something goes wrong, 0 otherwise. */
1070 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1072 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1073 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1074 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1076 /* Signal translation: translate inferior's signal (target's) number
1077 into GDB's representation. The implementation of this method must
1078 be host independent. IOW, don't rely on symbols of the NAT_FILE
1079 header (the nm-*.h files), the host <signal.h> header, or similar
1080 headers. This is mainly used when cross-debugging core files ---
1081 "Live" targets hide the translation behind the target interface
1082 (target_wait, target_resume, etc.). */
1084 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1086 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1087 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1088 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1090 /* Signal translation: translate the GDB's internal signal number into
1091 the inferior's signal (target's) representation. The implementation
1092 of this method must be host independent. IOW, don't rely on symbols
1093 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1094 header, or similar headers.
1095 Return the target signal number if found, or -1 if the GDB internal
1096 signal number is invalid. */
1098 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1100 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1101 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1102 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1104 /* Extra signal info inspection.
1106 Return a type suitable to inspect extra signal information. */
1108 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1110 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1111 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1112 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1114 /* Record architecture-specific information from the symbol table. */
1116 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1118 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1119 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1120 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1122 /* Function for the 'catch syscall' feature.
1123 Get architecture-specific system calls information from registers. */
1125 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1127 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1128 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, ptid_t ptid
);
1129 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1131 /* The filename of the XML syscall for this architecture. */
1133 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1134 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1136 /* Information about system calls from this architecture */
1138 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1139 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1141 /* SystemTap related fields and functions.
1142 A NULL-terminated array of prefixes used to mark an integer constant
1143 on the architecture's assembly.
1144 For example, on x86 integer constants are written as:
1146 $10 ;; integer constant 10
1148 in this case, this prefix would be the character `$'. */
1150 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1151 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1153 /* A NULL-terminated array of suffixes used to mark an integer constant
1154 on the architecture's assembly. */
1156 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1157 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1159 /* A NULL-terminated array of prefixes used to mark a register name on
1160 the architecture's assembly.
1161 For example, on x86 the register name is written as:
1163 %eax ;; register eax
1165 in this case, this prefix would be the character `%'. */
1167 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1168 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1170 /* A NULL-terminated array of suffixes used to mark a register name on
1171 the architecture's assembly. */
1173 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1174 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1176 /* A NULL-terminated array of prefixes used to mark a register
1177 indirection on the architecture's assembly.
1178 For example, on x86 the register indirection is written as:
1180 (%eax) ;; indirecting eax
1182 in this case, this prefix would be the charater `('.
1184 Please note that we use the indirection prefix also for register
1185 displacement, e.g., `4(%eax)' on x86. */
1187 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1188 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1190 /* A NULL-terminated array of suffixes used to mark a register
1191 indirection on the architecture's assembly.
1192 For example, on x86 the register indirection is written as:
1194 (%eax) ;; indirecting eax
1196 in this case, this prefix would be the charater `)'.
1198 Please note that we use the indirection suffix also for register
1199 displacement, e.g., `4(%eax)' on x86. */
1201 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1202 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1204 /* Prefix(es) used to name a register using GDB's nomenclature.
1206 For example, on PPC a register is represented by a number in the assembly
1207 language (e.g., `10' is the 10th general-purpose register). However,
1208 inside GDB this same register has an `r' appended to its name, so the 10th
1209 register would be represented as `r10' internally. */
1211 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1212 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1214 /* Suffix used to name a register using GDB's nomenclature. */
1216 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1217 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1219 /* Check if S is a single operand.
1221 Single operands can be:
1222 - Literal integers, e.g. `$10' on x86
1223 - Register access, e.g. `%eax' on x86
1224 - Register indirection, e.g. `(%eax)' on x86
1225 - Register displacement, e.g. `4(%eax)' on x86
1227 This function should check for these patterns on the string
1228 and return 1 if some were found, or zero otherwise. Please try to match
1229 as much info as you can from the string, i.e., if you have to match
1230 something like `(%', do not match just the `('. */
1232 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1234 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1235 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1236 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1238 /* Function used to handle a "special case" in the parser.
1240 A "special case" is considered to be an unknown token, i.e., a token
1241 that the parser does not know how to parse. A good example of special
1242 case would be ARM's register displacement syntax:
1244 [R0, #4] ;; displacing R0 by 4
1246 Since the parser assumes that a register displacement is of the form:
1248 <number> <indirection_prefix> <register_name> <indirection_suffix>
1250 it means that it will not be able to recognize and parse this odd syntax.
1251 Therefore, we should add a special case function that will handle this token.
1253 This function should generate the proper expression form of the expression
1254 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1255 and so on). It should also return 1 if the parsing was successful, or zero
1256 if the token was not recognized as a special token (in this case, returning
1257 zero means that the special parser is deferring the parsing to the generic
1258 parser), and should advance the buffer pointer (p->arg). */
1260 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1262 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1263 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1264 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1266 /* DTrace related functions.
1267 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1268 NARG must be >= 0. */
1270 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1272 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1273 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct parser_state
*pstate
, int narg
);
1274 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1276 /* True if the given ADDR does not contain the instruction sequence
1277 corresponding to a disabled DTrace is-enabled probe. */
1279 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1281 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1282 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1283 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1285 /* Enable a DTrace is-enabled probe at ADDR. */
1287 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1289 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1290 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1291 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1293 /* Disable a DTrace is-enabled probe at ADDR. */
1295 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1297 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1298 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1299 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1301 /* True if the list of shared libraries is one and only for all
1302 processes, as opposed to a list of shared libraries per inferior.
1303 This usually means that all processes, although may or may not share
1304 an address space, will see the same set of symbols at the same
1307 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1308 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1310 /* On some targets, even though each inferior has its own private
1311 address space, the debug interface takes care of making breakpoints
1312 visible to all address spaces automatically. For such cases,
1313 this property should be set to true. */
1315 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1316 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1318 /* True if inferiors share an address space (e.g., uClinux). */
1320 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1321 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1322 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1324 /* True if a fast tracepoint can be set at an address. */
1326 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1327 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, char **msg
);
1328 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1330 /* Return the "auto" target charset. */
1332 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1333 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1334 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1336 /* Return the "auto" target wide charset. */
1338 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1339 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1340 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1342 /* If non-empty, this is a file extension that will be opened in place
1343 of the file extension reported by the shared library list.
1345 This is most useful for toolchains that use a post-linker tool,
1346 where the names of the files run on the target differ in extension
1347 compared to the names of the files GDB should load for debug info. */
1349 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1350 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1352 /* If true, the target OS has DOS-based file system semantics. That
1353 is, absolute paths include a drive name, and the backslash is
1354 considered a directory separator. */
1356 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1357 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1359 /* Generate bytecodes to collect the return address in a frame.
1360 Since the bytecodes run on the target, possibly with GDB not even
1361 connected, the full unwinding machinery is not available, and
1362 typically this function will issue bytecodes for one or more likely
1363 places that the return address may be found. */
1365 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1366 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1367 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1369 /* Implement the "info proc" command. */
1371 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1373 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1374 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1375 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1377 /* Implement the "info proc" command for core files. Noe that there
1378 are two "info_proc"-like methods on gdbarch -- one for core files,
1379 one for live targets. */
1381 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1383 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1384 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1385 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1387 /* Iterate over all objfiles in the order that makes the most sense
1388 for the architecture to make global symbol searches.
1390 CB is a callback function where OBJFILE is the objfile to be searched,
1391 and CB_DATA a pointer to user-defined data (the same data that is passed
1392 when calling this gdbarch method). The iteration stops if this function
1395 CB_DATA is a pointer to some user-defined data to be passed to
1398 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1399 inspected when the symbol search was requested. */
1401 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
);
1402 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
);
1403 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
);
1405 /* Ravenscar arch-dependent ops. */
1407 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1408 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1410 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1412 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1413 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1414 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1416 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1418 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1419 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1420 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1422 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1424 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1425 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1426 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1428 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1429 Return 0 if *READPTR is already at the end of the buffer.
1430 Return -1 if there is insufficient buffer for a whole entry.
1431 Return 1 if an entry was read into *TYPEP and *VALP. */
1433 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1435 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1436 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1437 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1439 /* Find the address range of the current inferior's vsyscall/vDSO, and
1440 write it to *RANGE. If the vsyscall's length can't be determined, a
1441 range with zero length is returned. Returns true if the vsyscall is
1442 found, false otherwise. */
1444 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1445 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1446 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1448 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1449 PROT has GDB_MMAP_PROT_* bitmask format.
1450 Throw an error if it is not possible. Returned address is always valid. */
1452 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1453 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1454 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1456 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1457 Print a warning if it is not possible. */
1459 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1460 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1461 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1463 /* Return string (caller has to use xfree for it) with options for GCC
1464 to produce code for this target, typically "-m64", "-m32" or "-m31".
1465 These options are put before CU's DW_AT_producer compilation options so that
1466 they can override it. Method may also return NULL. */
1468 typedef char * (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1469 extern char * gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1470 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1472 /* Return a regular expression that matches names used by this
1473 architecture in GNU configury triplets. The result is statically
1474 allocated and must not be freed. The default implementation simply
1475 returns the BFD architecture name, which is correct in nearly every
1478 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1479 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1480 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1482 /* Return the size in 8-bit bytes of an addressable memory unit on this
1483 architecture. This corresponds to the number of 8-bit bytes associated to
1484 each address in memory. */
1486 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1487 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1488 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1490 /* Definition for an unknown syscall, used basically in error-cases. */
1491 #define UNKNOWN_SYSCALL (-1)
1493 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1496 /* Mechanism for co-ordinating the selection of a specific
1499 GDB targets (*-tdep.c) can register an interest in a specific
1500 architecture. Other GDB components can register a need to maintain
1501 per-architecture data.
1503 The mechanisms below ensures that there is only a loose connection
1504 between the set-architecture command and the various GDB
1505 components. Each component can independently register their need
1506 to maintain architecture specific data with gdbarch.
1510 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1513 The more traditional mega-struct containing architecture specific
1514 data for all the various GDB components was also considered. Since
1515 GDB is built from a variable number of (fairly independent)
1516 components it was determined that the global aproach was not
1520 /* Register a new architectural family with GDB.
1522 Register support for the specified ARCHITECTURE with GDB. When
1523 gdbarch determines that the specified architecture has been
1524 selected, the corresponding INIT function is called.
1528 The INIT function takes two parameters: INFO which contains the
1529 information available to gdbarch about the (possibly new)
1530 architecture; ARCHES which is a list of the previously created
1531 ``struct gdbarch'' for this architecture.
1533 The INFO parameter is, as far as possible, be pre-initialized with
1534 information obtained from INFO.ABFD or the global defaults.
1536 The ARCHES parameter is a linked list (sorted most recently used)
1537 of all the previously created architures for this architecture
1538 family. The (possibly NULL) ARCHES->gdbarch can used to access
1539 values from the previously selected architecture for this
1540 architecture family.
1542 The INIT function shall return any of: NULL - indicating that it
1543 doesn't recognize the selected architecture; an existing ``struct
1544 gdbarch'' from the ARCHES list - indicating that the new
1545 architecture is just a synonym for an earlier architecture (see
1546 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1547 - that describes the selected architecture (see gdbarch_alloc()).
1549 The DUMP_TDEP function shall print out all target specific values.
1550 Care should be taken to ensure that the function works in both the
1551 multi-arch and non- multi-arch cases. */
1555 struct gdbarch
*gdbarch
;
1556 struct gdbarch_list
*next
;
1561 /* Use default: NULL (ZERO). */
1562 const struct bfd_arch_info
*bfd_arch_info
;
1564 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1565 enum bfd_endian byte_order
;
1567 enum bfd_endian byte_order_for_code
;
1569 /* Use default: NULL (ZERO). */
1572 /* Use default: NULL (ZERO). */
1575 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1576 enum gdb_osabi osabi
;
1578 /* Use default: NULL (ZERO). */
1579 const struct target_desc
*target_desc
;
1582 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1583 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1585 /* DEPRECATED - use gdbarch_register() */
1586 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1588 extern void gdbarch_register (enum bfd_architecture architecture
,
1589 gdbarch_init_ftype
*,
1590 gdbarch_dump_tdep_ftype
*);
1593 /* Return a freshly allocated, NULL terminated, array of the valid
1594 architecture names. Since architectures are registered during the
1595 _initialize phase this function only returns useful information
1596 once initialization has been completed. */
1598 extern const char **gdbarch_printable_names (void);
1601 /* Helper function. Search the list of ARCHES for a GDBARCH that
1602 matches the information provided by INFO. */
1604 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1607 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1608 basic initialization using values obtained from the INFO and TDEP
1609 parameters. set_gdbarch_*() functions are called to complete the
1610 initialization of the object. */
1612 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1615 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1616 It is assumed that the caller freeds the ``struct
1619 extern void gdbarch_free (struct gdbarch
*);
1622 /* Helper function. Allocate memory from the ``struct gdbarch''
1623 obstack. The memory is freed when the corresponding architecture
1626 extern void *gdbarch_obstack_zalloc (struct gdbarch
*gdbarch
, long size
);
1627 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1628 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1630 /* Duplicate STRING, returning an equivalent string that's allocated on the
1631 obstack associated with GDBARCH. The string is freed when the corresponding
1632 architecture is also freed. */
1634 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1636 /* Helper function. Force an update of the current architecture.
1638 The actual architecture selected is determined by INFO, ``(gdb) set
1639 architecture'' et.al., the existing architecture and BFD's default
1640 architecture. INFO should be initialized to zero and then selected
1641 fields should be updated.
1643 Returns non-zero if the update succeeds. */
1645 extern int gdbarch_update_p (struct gdbarch_info info
);
1648 /* Helper function. Find an architecture matching info.
1650 INFO should be initialized using gdbarch_info_init, relevant fields
1651 set, and then finished using gdbarch_info_fill.
1653 Returns the corresponding architecture, or NULL if no matching
1654 architecture was found. */
1656 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1659 /* Helper function. Set the target gdbarch to "gdbarch". */
1661 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1664 /* Register per-architecture data-pointer.
1666 Reserve space for a per-architecture data-pointer. An identifier
1667 for the reserved data-pointer is returned. That identifer should
1668 be saved in a local static variable.
1670 Memory for the per-architecture data shall be allocated using
1671 gdbarch_obstack_zalloc. That memory will be deleted when the
1672 corresponding architecture object is deleted.
1674 When a previously created architecture is re-selected, the
1675 per-architecture data-pointer for that previous architecture is
1676 restored. INIT() is not re-called.
1678 Multiple registrarants for any architecture are allowed (and
1679 strongly encouraged). */
1681 struct gdbarch_data
;
1683 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1684 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1685 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1686 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1687 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1688 struct gdbarch_data
*data
,
1691 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1694 /* Set the dynamic target-system-dependent parameters (architecture,
1695 byte-order, ...) using information found in the BFD. */
1697 extern void set_gdbarch_from_file (bfd
*);
1700 /* Initialize the current architecture to the "first" one we find on
1703 extern void initialize_current_architecture (void);
1705 /* gdbarch trace variable */
1706 extern unsigned int gdbarch_debug
;
1708 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);