1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2021 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''. */
31 #include "gdb_obstack.h"
34 #include "displaced-stepping.h"
41 struct minimal_symbol
;
45 struct disassemble_info
;
48 struct bp_target_info
;
54 struct stap_parse_info
;
56 struct ravenscar_arch_ops
;
65 /* The architecture associated with the inferior through the
66 connection to the target.
68 The architecture vector provides some information that is really a
69 property of the inferior, accessed through a particular target:
70 ptrace operations; the layout of certain RSP packets; the solib_ops
71 vector; etc. To differentiate architecture accesses to
72 per-inferior/target properties from
73 per-thread/per-frame/per-objfile properties, accesses to
74 per-inferior/target properties should be made through this
77 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
78 extern struct gdbarch
*target_gdbarch (void);
80 /* Callback type for the 'iterate_over_objfiles_in_search_order'
83 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
84 (struct objfile
*objfile
, void *cb_data
);
86 /* Callback type for regset section iterators. The callback usually
87 invokes the REGSET's supply or collect method, to which it must
88 pass a buffer - for collects this buffer will need to be created using
89 COLLECT_SIZE, for supply the existing buffer being read from should
90 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
91 is used for diagnostic messages. CB_DATA should have been passed
92 unchanged through the iterator. */
94 typedef void (iterate_over_regset_sections_cb
)
95 (const char *sect_name
, int supply_size
, int collect_size
,
96 const struct regset
*regset
, const char *human_name
, void *cb_data
);
98 /* For a function call, does the function return a value using a
99 normal value return or a structure return - passing a hidden
100 argument pointing to storage. For the latter, there are two
101 cases: language-mandated structure return and target ABI
104 enum function_call_return_method
106 /* Standard value return. */
107 return_method_normal
= 0,
109 /* Language ABI structure return. This is handled
110 by passing the return location as the first parameter to
111 the function, even preceding "this". */
112 return_method_hidden_param
,
114 /* Target ABI struct return. This is target-specific; for instance,
115 on ia64 the first argument is passed in out0 but the hidden
116 structure return pointer would normally be passed in r8. */
117 return_method_struct
,
120 enum class memtag_type
122 /* Logical tag, the tag that is stored in unused bits of a pointer to a
126 /* Allocation tag, the tag that is associated with every granule of memory in
127 the physical address space. Allocation tags are used to validate memory
128 accesses via pointers containing logical tags. */
134 /* The following are pre-initialized by GDBARCH. */
136 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
137 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
139 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
140 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
142 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
143 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
145 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
146 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
148 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
149 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
152 /* The following are initialized by the target dependent code. */
154 /* Number of bits in a short or unsigned short for the target machine. */
156 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
157 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
159 /* Number of bits in an int or unsigned int for the target machine. */
161 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
162 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
164 /* Number of bits in a long or unsigned long for the target machine. */
166 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
167 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
169 /* Number of bits in a long long or unsigned long long for the target
172 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
173 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
175 /* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and
176 "long double". These bit/format pairs should eventually be combined
177 into a single object. For the moment, just initialize them as a pair.
178 Each format describes both the big and little endian layouts (if
181 extern int gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
);
182 extern void set_gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
, int bfloat16_bit
);
184 extern const struct floatformat
** gdbarch_bfloat16_format (struct gdbarch
*gdbarch
);
185 extern void set_gdbarch_bfloat16_format (struct gdbarch
*gdbarch
, const struct floatformat
** bfloat16_format
);
187 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
188 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
190 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
191 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
193 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
194 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
196 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
197 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
199 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
200 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
202 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
203 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
205 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
206 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
208 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
209 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
211 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
212 starting with C++11. */
214 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
215 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
217 /* One if `wchar_t' is signed, zero if unsigned. */
219 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
220 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
222 /* Returns the floating-point format to be used for values of length LENGTH.
223 NAME, if non-NULL, is the type name, which may be used to distinguish
224 different target formats of the same length. */
226 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
227 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
228 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
230 /* For most targets, a pointer on the target and its representation as an
231 address in GDB have the same size and "look the same". For such a
232 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
233 / addr_bit will be set from it.
235 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
236 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
237 gdbarch_address_to_pointer as well.
239 ptr_bit is the size of a pointer on the target */
241 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
242 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
244 /* addr_bit is the size of a target address as represented in gdb */
246 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
247 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
249 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
250 info. For .debug_frame FDEs, this is supposed to be the target address
251 size from the associated CU header, and which is equivalent to the
252 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
253 Unfortunately there is no good way to determine this value. Therefore
254 dwarf2_addr_size simply defaults to the target pointer size.
256 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
257 defined using the target's pointer size so far.
259 Note that dwarf2_addr_size only needs to be redefined by a target if the
260 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
261 and if Dwarf versions < 4 need to be supported. */
263 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
264 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
266 /* One if `char' acts like `signed char', zero if `unsigned char'. */
268 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
269 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
271 extern bool gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
273 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
274 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
275 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
277 extern bool gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
279 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
280 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
281 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
283 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
284 whole scheme for dealing with "frames" and "frame pointers" needs a
285 serious shakedown. */
287 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
288 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
289 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
291 extern bool gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
293 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
294 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
295 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
297 /* Read a register into a new struct value. If the register is wholly
298 or partly unavailable, this should call mark_value_bytes_unavailable
299 as appropriate. If this is defined, then pseudo_register_read will
302 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
304 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
305 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
306 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
308 extern bool gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
310 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
311 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
312 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
314 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
315 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
317 /* This macro gives the number of pseudo-registers that live in the
318 register namespace but do not get fetched or stored on the target.
319 These pseudo-registers may be aliases for other registers,
320 combinations of other registers, or they may be computed by GDB. */
322 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
323 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
325 /* Assemble agent expression bytecode to collect pseudo-register REG.
326 Return -1 if something goes wrong, 0 otherwise. */
328 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
330 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
331 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
332 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
334 /* Assemble agent expression bytecode to push the value of pseudo-register
335 REG on the interpreter stack.
336 Return -1 if something goes wrong, 0 otherwise. */
338 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
340 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
341 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
342 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
344 /* Some architectures can display additional information for specific
346 UIOUT is the output stream where the handler will place information. */
348 extern bool gdbarch_report_signal_info_p (struct gdbarch
*gdbarch
);
350 typedef void (gdbarch_report_signal_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
351 extern void gdbarch_report_signal_info (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
352 extern void set_gdbarch_report_signal_info (struct gdbarch
*gdbarch
, gdbarch_report_signal_info_ftype
*report_signal_info
);
354 /* GDB's standard (or well known) register numbers. These can map onto
355 a real register or a pseudo (computed) register or not be defined at
357 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
359 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
360 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
362 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
363 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
365 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
366 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
368 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
369 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
371 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
373 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
374 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
375 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
377 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
379 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
380 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
381 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
383 /* Convert from an sdb register number to an internal gdb register number. */
385 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
386 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
387 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
389 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
390 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
392 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
393 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
394 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
396 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
397 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
398 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
400 /* Return the type of a register specified by the architecture. Only
401 the register cache should call this function directly; others should
402 use "register_type". */
404 extern bool gdbarch_register_type_p (struct gdbarch
*gdbarch
);
406 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
407 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
408 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
410 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
411 a dummy frame. A dummy frame is created before an inferior call,
412 the frame_id returned here must match the frame_id that was built
413 for the inferior call. Usually this means the returned frame_id's
414 stack address should match the address returned by
415 gdbarch_push_dummy_call, and the returned frame_id's code address
416 should match the address at which the breakpoint was set in the dummy
419 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
420 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
421 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
423 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
424 deprecated_fp_regnum. */
426 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
427 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
429 extern bool gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
431 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
, function_call_return_method return_method
, CORE_ADDR struct_addr
);
432 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
, function_call_return_method return_method
, CORE_ADDR struct_addr
);
433 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
435 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
436 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
438 extern bool gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
440 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
);
441 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
);
442 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
444 /* Return true if the code of FRAME is writable. */
446 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
447 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
448 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
450 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
451 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
452 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
454 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
455 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
456 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
458 extern bool gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
460 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
461 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
462 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
464 /* MAP a GDB RAW register number onto a simulator register number. See
465 also include/...-sim.h. */
467 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
468 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
469 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
471 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
472 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
473 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
475 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
476 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
477 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
479 /* Determine the address where a longjmp will land and save this address
480 in PC. Return nonzero on success.
482 FRAME corresponds to the longjmp frame. */
484 extern bool gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
486 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
487 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
488 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
490 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
491 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
493 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
494 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
495 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
497 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
498 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
);
499 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
501 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
502 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
503 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
505 /* Construct a value representing the contents of register REGNUM in
506 frame FRAME_ID, interpreted as type TYPE. The routine needs to
507 allocate and return a struct value with all value attributes
508 (but not the value contents) filled in. */
510 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
511 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
512 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
514 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
515 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
516 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
518 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
519 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
520 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
522 extern bool gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
524 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
525 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
526 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
528 /* Return the return-value convention that will be used by FUNCTION
529 to return a value of type VALTYPE. FUNCTION may be NULL in which
530 case the return convention is computed based only on VALTYPE.
532 If READBUF is not NULL, extract the return value and save it in this buffer.
534 If WRITEBUF is not NULL, it contains a return value which will be
535 stored into the appropriate register. This can be used when we want
536 to force the value returned by a function (see the "return" command
539 extern bool gdbarch_return_value_p (struct gdbarch
*gdbarch
);
541 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
);
542 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
);
543 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
545 /* Return true if the return value of function is stored in the first hidden
546 parameter. In theory, this feature should be language-dependent, specified
547 by language and its ABI, such as C++. Unfortunately, compiler may
548 implement it to a target-dependent feature. So that we need such hook here
549 to be aware of this in GDB. */
551 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
552 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
553 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
);
555 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
556 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
557 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
559 extern bool gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
561 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
562 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
563 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
565 /* On some platforms, a single function may provide multiple entry points,
566 e.g. one that is used for function-pointer calls and a different one
567 that is used for direct function calls.
568 In order to ensure that breakpoints set on the function will trigger
569 no matter via which entry point the function is entered, a platform
570 may provide the skip_entrypoint callback. It is called with IP set
571 to the main entry point of a function (as determined by the symbol table),
572 and should return the address of the innermost entry point, where the
573 actual breakpoint needs to be set. Note that skip_entrypoint is used
574 by GDB common code even when debugging optimized code, where skip_prologue
577 extern bool gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
579 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
580 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
581 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
583 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
584 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
585 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
587 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
588 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
589 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
591 /* Return the breakpoint kind for this target based on *PCPTR. */
593 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
594 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
595 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
597 /* Return the software breakpoint from KIND. KIND can have target
598 specific meaning like the Z0 kind parameter.
599 SIZE is set to the software breakpoint's length in memory. */
601 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
602 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
603 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
605 /* Return the breakpoint kind for this target based on the current
606 processor state (e.g. the current instruction mode on ARM) and the
607 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
609 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
610 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
611 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
613 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
615 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
616 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
617 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
619 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
620 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
621 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
623 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
624 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
625 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
627 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
628 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
630 /* A function can be addressed by either it's "pointer" (possibly a
631 descriptor address) or "entry point" (first executable instruction).
632 The method "convert_from_func_ptr_addr" converting the former to the
633 latter. gdbarch_deprecated_function_start_offset is being used to implement
634 a simplified subset of that functionality - the function's address
635 corresponds to the "function pointer" and the function's start
636 corresponds to the "function entry point" - and hence is redundant. */
638 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
639 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
641 /* Return the remote protocol register number associated with this
642 register. Normally the identity mapping. */
644 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
645 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
646 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
648 /* Fetch the target specific address used to represent a load module. */
650 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
652 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
653 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
654 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
656 /* Return the thread-local address at OFFSET in the thread-local
657 storage for the thread PTID and the shared library or executable
658 file given by LM_ADDR. If that block of thread-local storage hasn't
659 been allocated yet, this function may throw an error. LM_ADDR may
660 be zero for statically linked multithreaded inferiors. */
662 extern bool gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
664 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
665 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
666 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
668 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
669 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
671 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
672 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
673 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
675 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
676 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
677 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
679 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
680 frame-base. Enable frame-base before frame-unwind. */
682 extern bool gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
684 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
685 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
686 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
688 extern bool gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
690 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
691 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
692 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
694 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
695 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
696 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
698 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
699 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
701 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
702 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
703 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
705 /* On some machines there are bits in addresses which are not really
706 part of the address, but are used by the kernel, the hardware, etc.
707 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
708 we get a "real" address such as one would find in a symbol table.
709 This is used only for addresses of instructions, and even then I'm
710 not sure it's used in all contexts. It exists to deal with there
711 being a few stray bits in the PC which would mislead us, not as some
712 sort of generic thing to handle alignment or segmentation (it's
713 possible it should be in TARGET_READ_PC instead). */
715 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
716 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
717 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
719 /* On some machines, not all bits of an address word are significant.
720 For example, on AArch64, the top bits of an address known as the "tag"
721 are ignored by the kernel, the hardware, etc. and can be regarded as
722 additional data associated with the address. */
724 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
725 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
727 /* Return a string representation of the memory tag TAG. */
729 typedef std::string (gdbarch_memtag_to_string_ftype
) (struct gdbarch
*gdbarch
, struct value
*tag
);
730 extern std::string
gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, struct value
*tag
);
731 extern void set_gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, gdbarch_memtag_to_string_ftype
*memtag_to_string
);
733 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
734 must be either a pointer or a reference type. */
736 typedef bool (gdbarch_tagged_address_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
737 extern bool gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, struct value
*address
);
738 extern void set_gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, gdbarch_tagged_address_p_ftype
*tagged_address_p
);
740 /* Return true if the tag from ADDRESS matches the memory tag for that
741 particular address. Return false otherwise. */
743 typedef bool (gdbarch_memtag_matches_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
744 extern bool gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, struct value
*address
);
745 extern void set_gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, gdbarch_memtag_matches_p_ftype
*memtag_matches_p
);
747 /* Set the tags of type TAG_TYPE, for the memory address range
748 [ADDRESS, ADDRESS + LENGTH) to TAGS.
749 Return true if successful and false otherwise. */
751 typedef bool (gdbarch_set_memtags_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
752 extern bool gdbarch_set_memtags (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
753 extern void set_gdbarch_set_memtags (struct gdbarch
*gdbarch
, gdbarch_set_memtags_ftype
*set_memtags
);
755 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
756 assuming ADDRESS is tagged. */
758 typedef struct value
* (gdbarch_get_memtag_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
759 extern struct value
* gdbarch_get_memtag (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
760 extern void set_gdbarch_get_memtag (struct gdbarch
*gdbarch
, gdbarch_get_memtag_ftype
*get_memtag
);
762 /* memtag_granule_size is the size of the allocation tag granule, for
763 architectures that support memory tagging.
764 This is 0 for architectures that do not support memory tagging.
765 For a non-zero value, this represents the number of bytes of memory per tag. */
767 extern CORE_ADDR
gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
);
768 extern void set_gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
, CORE_ADDR memtag_granule_size
);
770 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
771 indicates if the target needs software single step. An ISA method to
774 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
775 target can single step. If not, then implement single step using breakpoints.
777 Return a vector of addresses on which the software single step
778 breakpoints should be inserted. NULL means software single step is
780 Multiple breakpoints may be inserted for some instructions such as
781 conditional branch. However, each implementation must always evaluate
782 the condition and only put the breakpoint at the branch destination if
783 the condition is true, so that we ensure forward progress when stepping
784 past a conditional branch to self. */
786 extern bool gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
788 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
789 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
790 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
792 /* Return non-zero if the processor is executing a delay slot and a
793 further single-step is needed before the instruction finishes. */
795 extern bool gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
797 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
798 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
799 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
801 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
802 disassembler. Perhaps objdump can handle it? */
804 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
805 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
806 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
808 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
809 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
810 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
812 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
813 evaluates non-zero, this is the address where the debugger will place
814 a step-resume breakpoint to get us past the dynamic linker. */
816 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
817 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
818 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
820 /* Some systems also have trampoline code for returning from shared libs. */
822 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
823 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
824 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
826 /* Return true if PC lies inside an indirect branch thunk. */
828 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
829 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
830 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
832 /* A target might have problems with watchpoints as soon as the stack
833 frame of the current function has been destroyed. This mostly happens
834 as the first action in a function's epilogue. stack_frame_destroyed_p()
835 is defined to return a non-zero value if either the given addr is one
836 instruction after the stack destroying instruction up to the trailing
837 return instruction or if we can figure out that the stack frame has
838 already been invalidated regardless of the value of addr. Targets
839 which don't suffer from that problem could just let this functionality
842 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
843 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
844 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
846 /* Process an ELF symbol in the minimal symbol table in a backend-specific
847 way. Normally this hook is supposed to do nothing, however if required,
848 then this hook can be used to apply tranformations to symbols that are
849 considered special in some way. For example the MIPS backend uses it
850 to interpret `st_other' information to mark compressed code symbols so
851 that they can be treated in the appropriate manner in the processing of
852 the main symbol table and DWARF-2 records. */
854 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
856 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
857 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
858 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
860 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
861 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
862 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
864 /* Process a symbol in the main symbol table in a backend-specific way.
865 Normally this hook is supposed to do nothing, however if required,
866 then this hook can be used to apply tranformations to symbols that
867 are considered special in some way. This is currently used by the
868 MIPS backend to make sure compressed code symbols have the ISA bit
869 set. This in turn is needed for symbol values seen in GDB to match
870 the values used at the runtime by the program itself, for function
871 and label references. */
873 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
874 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
875 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
877 /* Adjust the address retrieved from a DWARF-2 record other than a line
878 entry in a backend-specific way. Normally this hook is supposed to
879 return the address passed unchanged, however if that is incorrect for
880 any reason, then this hook can be used to fix the address up in the
881 required manner. This is currently used by the MIPS backend to make
882 sure addresses in FDE, range records, etc. referring to compressed
883 code have the ISA bit set, matching line information and the symbol
886 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
887 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
888 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
890 /* Adjust the address updated by a line entry in a backend-specific way.
891 Normally this hook is supposed to return the address passed unchanged,
892 however in the case of inconsistencies in these records, this hook can
893 be used to fix them up in the required manner. This is currently used
894 by the MIPS backend to make sure all line addresses in compressed code
895 are presented with the ISA bit set, which is not always the case. This
896 in turn ensures breakpoint addresses are correctly matched against the
899 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
900 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
901 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
903 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
904 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
906 /* See comment in target.h about continuable, steppable and
907 non-steppable watchpoints. */
909 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
910 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
912 extern bool gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
914 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
915 extern type_instance_flags
gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
916 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
918 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
920 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
921 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
922 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
);
924 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
925 FS are passed from the generic execute_cfa_program function. */
927 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
928 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
929 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
931 /* Return the appropriate type_flags for the supplied address class.
932 This function should return true if the address class was recognized and
933 type_flags was set, false otherwise. */
935 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
937 typedef bool (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
938 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
939 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
);
941 /* Is a register in a group */
943 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
944 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
945 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
947 /* Fetch the pointer to the ith function argument. */
949 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
951 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
952 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
953 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
955 /* Iterate over all supported register notes in a core file. For each
956 supported register note section, the iterator must call CB and pass
957 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
958 the supported register note sections based on the current register
959 values. Otherwise it should enumerate all supported register note
962 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
964 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
965 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
966 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
968 /* Create core file notes */
970 extern bool gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
972 typedef gdb::unique_xmalloc_ptr
<char> (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
973 extern gdb::unique_xmalloc_ptr
<char> gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
974 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
976 /* Find core file memory regions */
978 extern bool gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
980 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
981 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
982 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
984 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
985 core file into buffer READBUF with length LEN. Return the number of bytes read
986 (zero indicates failure).
987 failed, otherwise, return the red length of READBUF. */
989 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
991 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
992 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
993 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
995 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
996 libraries list from core file into buffer READBUF with length LEN.
997 Return the number of bytes read (zero indicates failure). */
999 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
1001 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1002 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1003 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
1005 /* How the core target converts a PTID from a core file to a string. */
1007 extern bool gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
1009 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1010 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
1011 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
1013 /* How the core target extracts the name of a thread from a core file. */
1015 extern bool gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
1017 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1018 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1019 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
1021 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
1022 from core file into buffer READBUF with length LEN. Return the number
1023 of bytes read (zero indicates EOF, a negative value indicates failure). */
1025 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
1027 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1028 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1029 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
1031 /* BFD target to use when generating a core file. */
1033 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
1035 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
1036 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
1038 /* If the elements of C++ vtables are in-place function descriptors rather
1039 than normal function pointers (which may point to code or a descriptor),
1042 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
1043 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
1045 /* Set if the least significant bit of the delta is used instead of the least
1046 significant bit of the pfn for pointers to virtual member functions. */
1048 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
1049 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
1051 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1053 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
1054 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
1055 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
1057 /* The maximum length of an instruction on this architecture in bytes. */
1059 extern bool gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1061 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1062 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1064 /* Copy the instruction at FROM to TO, and make any adjustments
1065 necessary to single-step it at that address.
1067 REGS holds the state the thread's registers will have before
1068 executing the copied instruction; the PC in REGS will refer to FROM,
1069 not the copy at TO. The caller should update it to point at TO later.
1071 Return a pointer to data of the architecture's choice to be passed
1072 to gdbarch_displaced_step_fixup.
1074 For a general explanation of displaced stepping and how GDB uses it,
1075 see the comments in infrun.c.
1077 The TO area is only guaranteed to have space for
1078 gdbarch_max_insn_length (arch) bytes, so this function must not
1079 write more bytes than that to that area.
1081 If you do not provide this function, GDB assumes that the
1082 architecture does not support displaced stepping.
1084 If the instruction cannot execute out of line, return NULL. The
1085 core falls back to stepping past the instruction in-line instead in
1088 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1090 typedef displaced_step_copy_insn_closure_up (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1091 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1092 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1094 /* Return true if GDB should use hardware single-stepping to execute a displaced
1095 step instruction. If false, GDB will simply restart execution at the
1096 displaced instruction location, and it is up to the target to ensure GDB will
1097 receive control again (e.g. by placing a software breakpoint instruction into
1098 the displaced instruction buffer).
1100 The default implementation returns false on all targets that provide a
1101 gdbarch_software_single_step routine, and true otherwise. */
1103 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
);
1104 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
);
1105 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1107 /* Fix up the state resulting from successfully single-stepping a
1108 displaced instruction, to give the result we would have gotten from
1109 stepping the instruction in its original location.
1111 REGS is the register state resulting from single-stepping the
1112 displaced instruction.
1114 CLOSURE is the result from the matching call to
1115 gdbarch_displaced_step_copy_insn.
1117 If you provide gdbarch_displaced_step_copy_insn.but not this
1118 function, then GDB assumes that no fixup is needed after
1119 single-stepping the instruction.
1121 For a general explanation of displaced stepping and how GDB uses it,
1122 see the comments in infrun.c. */
1124 extern bool gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1126 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1127 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1128 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1130 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1132 Throw an exception if any unexpected error happens. */
1134 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch
*gdbarch
);
1136 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1137 extern displaced_step_prepare_status
gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1138 extern void set_gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, gdbarch_displaced_step_prepare_ftype
*displaced_step_prepare
);
1140 /* Clean up after a displaced step of THREAD. */
1142 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1143 extern displaced_step_finish_status
gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1144 extern void set_gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, gdbarch_displaced_step_finish_ftype
*displaced_step_finish
);
1146 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1148 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch
*gdbarch
);
1150 typedef const displaced_step_copy_insn_closure
* (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype
) (inferior
*inf
, CORE_ADDR addr
);
1151 extern const displaced_step_copy_insn_closure
* gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch
*gdbarch
, inferior
*inf
, CORE_ADDR addr
);
1152 extern void set_gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_closure_by_addr_ftype
*displaced_step_copy_insn_closure_by_addr
);
1154 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1155 contents of all displaced step buffers in the child's address space. */
1157 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype
) (inferior
*parent_inf
, ptid_t child_ptid
);
1158 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch
*gdbarch
, inferior
*parent_inf
, ptid_t child_ptid
);
1159 extern void set_gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch
*gdbarch
, gdbarch_displaced_step_restore_all_in_ptid_ftype
*displaced_step_restore_all_in_ptid
);
1161 /* Relocate an instruction to execute at a different address. OLDLOC
1162 is the address in the inferior memory where the instruction to
1163 relocate is currently at. On input, TO points to the destination
1164 where we want the instruction to be copied (and possibly adjusted)
1165 to. On output, it points to one past the end of the resulting
1166 instruction(s). The effect of executing the instruction at TO shall
1167 be the same as if executing it at FROM. For example, call
1168 instructions that implicitly push the return address on the stack
1169 should be adjusted to return to the instruction after OLDLOC;
1170 relative branches, and other PC-relative instructions need the
1171 offset adjusted; etc. */
1173 extern bool gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1175 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1176 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1177 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1179 /* Refresh overlay mapped state for section OSECT. */
1181 extern bool gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1183 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1184 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1185 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1187 extern bool gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1189 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1190 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1191 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1193 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1195 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1196 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1198 /* Parse the instruction at ADDR storing in the record execution log
1199 the registers REGCACHE and memory ranges that will be affected when
1200 the instruction executes, along with their current values.
1201 Return -1 if something goes wrong, 0 otherwise. */
1203 extern bool gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1205 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1206 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1207 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1209 /* Save process state after a signal.
1210 Return -1 if something goes wrong, 0 otherwise. */
1212 extern bool gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1214 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1215 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1216 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1218 /* Signal translation: translate inferior's signal (target's) number
1219 into GDB's representation. The implementation of this method must
1220 be host independent. IOW, don't rely on symbols of the NAT_FILE
1221 header (the nm-*.h files), the host <signal.h> header, or similar
1222 headers. This is mainly used when cross-debugging core files ---
1223 "Live" targets hide the translation behind the target interface
1224 (target_wait, target_resume, etc.). */
1226 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1228 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1229 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1230 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1232 /* Signal translation: translate the GDB's internal signal number into
1233 the inferior's signal (target's) representation. The implementation
1234 of this method must be host independent. IOW, don't rely on symbols
1235 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1236 header, or similar headers.
1237 Return the target signal number if found, or -1 if the GDB internal
1238 signal number is invalid. */
1240 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1242 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1243 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1244 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1246 /* Extra signal info inspection.
1248 Return a type suitable to inspect extra signal information. */
1250 extern bool gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1252 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1253 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1254 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1256 /* Record architecture-specific information from the symbol table. */
1258 extern bool gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1260 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1261 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1262 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1264 /* Function for the 'catch syscall' feature.
1265 Get architecture-specific system calls information from registers. */
1267 extern bool gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1269 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1270 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1271 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1273 /* The filename of the XML syscall for this architecture. */
1275 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1276 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1278 /* Information about system calls from this architecture */
1280 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1281 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1283 /* SystemTap related fields and functions.
1284 A NULL-terminated array of prefixes used to mark an integer constant
1285 on the architecture's assembly.
1286 For example, on x86 integer constants are written as:
1288 $10 ;; integer constant 10
1290 in this case, this prefix would be the character `$'. */
1292 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1293 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1295 /* A NULL-terminated array of suffixes used to mark an integer constant
1296 on the architecture's assembly. */
1298 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1299 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1301 /* A NULL-terminated array of prefixes used to mark a register name on
1302 the architecture's assembly.
1303 For example, on x86 the register name is written as:
1305 %eax ;; register eax
1307 in this case, this prefix would be the character `%'. */
1309 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1310 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1312 /* A NULL-terminated array of suffixes used to mark a register name on
1313 the architecture's assembly. */
1315 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1316 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1318 /* A NULL-terminated array of prefixes used to mark a register
1319 indirection on the architecture's assembly.
1320 For example, on x86 the register indirection is written as:
1322 (%eax) ;; indirecting eax
1324 in this case, this prefix would be the charater `('.
1326 Please note that we use the indirection prefix also for register
1327 displacement, e.g., `4(%eax)' on x86. */
1329 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1330 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1332 /* A NULL-terminated array of suffixes used to mark a register
1333 indirection on the architecture's assembly.
1334 For example, on x86 the register indirection is written as:
1336 (%eax) ;; indirecting eax
1338 in this case, this prefix would be the charater `)'.
1340 Please note that we use the indirection suffix also for register
1341 displacement, e.g., `4(%eax)' on x86. */
1343 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1344 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1346 /* Prefix(es) used to name a register using GDB's nomenclature.
1348 For example, on PPC a register is represented by a number in the assembly
1349 language (e.g., `10' is the 10th general-purpose register). However,
1350 inside GDB this same register has an `r' appended to its name, so the 10th
1351 register would be represented as `r10' internally. */
1353 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1354 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1356 /* Suffix used to name a register using GDB's nomenclature. */
1358 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1359 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1361 /* Check if S is a single operand.
1363 Single operands can be:
1364 - Literal integers, e.g. `$10' on x86
1365 - Register access, e.g. `%eax' on x86
1366 - Register indirection, e.g. `(%eax)' on x86
1367 - Register displacement, e.g. `4(%eax)' on x86
1369 This function should check for these patterns on the string
1370 and return 1 if some were found, or zero otherwise. Please try to match
1371 as much info as you can from the string, i.e., if you have to match
1372 something like `(%', do not match just the `('. */
1374 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1376 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1377 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1378 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1380 /* Function used to handle a "special case" in the parser.
1382 A "special case" is considered to be an unknown token, i.e., a token
1383 that the parser does not know how to parse. A good example of special
1384 case would be ARM's register displacement syntax:
1386 [R0, #4] ;; displacing R0 by 4
1388 Since the parser assumes that a register displacement is of the form:
1390 <number> <indirection_prefix> <register_name> <indirection_suffix>
1392 it means that it will not be able to recognize and parse this odd syntax.
1393 Therefore, we should add a special case function that will handle this token.
1395 This function should generate the proper expression form of the expression
1396 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1397 and so on). It should also return 1 if the parsing was successful, or zero
1398 if the token was not recognized as a special token (in this case, returning
1399 zero means that the special parser is deferring the parsing to the generic
1400 parser), and should advance the buffer pointer (p->arg). */
1402 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1404 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1405 extern expr::operation_up
gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1406 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1408 /* Perform arch-dependent adjustments to a register name.
1410 In very specific situations, it may be necessary for the register
1411 name present in a SystemTap probe's argument to be handled in a
1412 special way. For example, on i386, GCC may over-optimize the
1413 register allocation and use smaller registers than necessary. In
1414 such cases, the client that is reading and evaluating the SystemTap
1415 probe (ourselves) will need to actually fetch values from the wider
1416 version of the register in question.
1418 To illustrate the example, consider the following probe argument
1423 This argument says that its value can be found at the %ax register,
1424 which is a 16-bit register. However, the argument's prefix says
1425 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1426 this case, GDB should actually fetch the probe's value from register
1427 %eax, not %ax. In this scenario, this function would actually
1428 replace the register name from %ax to %eax.
1430 The rationale for this can be found at PR breakpoints/24541. */
1432 extern bool gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1434 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1435 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1436 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1438 /* DTrace related functions.
1439 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1440 NARG must be >= 0. */
1442 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1444 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, int narg
);
1445 extern expr::operation_up
gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, int narg
);
1446 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1448 /* True if the given ADDR does not contain the instruction sequence
1449 corresponding to a disabled DTrace is-enabled probe. */
1451 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1453 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1454 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1455 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1457 /* Enable a DTrace is-enabled probe at ADDR. */
1459 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1461 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1462 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1463 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1465 /* Disable a DTrace is-enabled probe at ADDR. */
1467 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1469 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1470 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1471 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1473 /* True if the list of shared libraries is one and only for all
1474 processes, as opposed to a list of shared libraries per inferior.
1475 This usually means that all processes, although may or may not share
1476 an address space, will see the same set of symbols at the same
1479 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1480 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1482 /* On some targets, even though each inferior has its own private
1483 address space, the debug interface takes care of making breakpoints
1484 visible to all address spaces automatically. For such cases,
1485 this property should be set to true. */
1487 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1488 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1490 /* True if inferiors share an address space (e.g., uClinux). */
1492 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1493 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1494 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1496 /* True if a fast tracepoint can be set at an address. */
1498 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1499 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1500 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1502 /* Guess register state based on tracepoint location. Used for tracepoints
1503 where no registers have been collected, but there's only one location,
1504 allowing us to guess the PC value, and perhaps some other registers.
1505 On entry, regcache has all registers marked as unavailable. */
1507 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1508 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1509 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1511 /* Return the "auto" target charset. */
1513 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1514 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1515 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1517 /* Return the "auto" target wide charset. */
1519 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1520 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1521 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1523 /* If non-empty, this is a file extension that will be opened in place
1524 of the file extension reported by the shared library list.
1526 This is most useful for toolchains that use a post-linker tool,
1527 where the names of the files run on the target differ in extension
1528 compared to the names of the files GDB should load for debug info. */
1530 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1531 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1533 /* If true, the target OS has DOS-based file system semantics. That
1534 is, absolute paths include a drive name, and the backslash is
1535 considered a directory separator. */
1537 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1538 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1540 /* Generate bytecodes to collect the return address in a frame.
1541 Since the bytecodes run on the target, possibly with GDB not even
1542 connected, the full unwinding machinery is not available, and
1543 typically this function will issue bytecodes for one or more likely
1544 places that the return address may be found. */
1546 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1547 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1548 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1550 /* Implement the "info proc" command. */
1552 extern bool gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1554 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1555 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1556 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1558 /* Implement the "info proc" command for core files. Noe that there
1559 are two "info_proc"-like methods on gdbarch -- one for core files,
1560 one for live targets. */
1562 extern bool gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1564 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1565 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1566 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1568 /* Iterate over all objfiles in the order that makes the most sense
1569 for the architecture to make global symbol searches.
1571 CB is a callback function where OBJFILE is the objfile to be searched,
1572 and CB_DATA a pointer to user-defined data (the same data that is passed
1573 when calling this gdbarch method). The iteration stops if this function
1576 CB_DATA is a pointer to some user-defined data to be passed to
1579 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1580 inspected when the symbol search was requested. */
1582 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
);
1583 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
);
1584 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
);
1586 /* Ravenscar arch-dependent ops. */
1588 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1589 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1591 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1593 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1594 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1595 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1597 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1599 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1600 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1601 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1603 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1605 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1606 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1607 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1609 /* Return true if there's a program/permanent breakpoint planted in
1610 memory at ADDRESS, return false otherwise. */
1612 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1613 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1614 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1616 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1617 Return 0 if *READPTR is already at the end of the buffer.
1618 Return -1 if there is insufficient buffer for a whole entry.
1619 Return 1 if an entry was read into *TYPEP and *VALP. */
1621 extern bool gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1623 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1624 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1625 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1627 /* Print the description of a single auxv entry described by TYPE and VAL
1630 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1631 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1632 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1634 /* Find the address range of the current inferior's vsyscall/vDSO, and
1635 write it to *RANGE. If the vsyscall's length can't be determined, a
1636 range with zero length is returned. Returns true if the vsyscall is
1637 found, false otherwise. */
1639 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1640 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1641 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1643 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1644 PROT has GDB_MMAP_PROT_* bitmask format.
1645 Throw an error if it is not possible. Returned address is always valid. */
1647 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1648 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1649 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1651 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1652 Print a warning if it is not possible. */
1654 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1655 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1656 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1658 /* Return string (caller has to use xfree for it) with options for GCC
1659 to produce code for this target, typically "-m64", "-m32" or "-m31".
1660 These options are put before CU's DW_AT_producer compilation options so that
1661 they can override it. */
1663 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1664 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1665 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1667 /* Return a regular expression that matches names used by this
1668 architecture in GNU configury triplets. The result is statically
1669 allocated and must not be freed. The default implementation simply
1670 returns the BFD architecture name, which is correct in nearly every
1673 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1674 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1675 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1677 /* Return the size in 8-bit bytes of an addressable memory unit on this
1678 architecture. This corresponds to the number of 8-bit bytes associated to
1679 each address in memory. */
1681 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1682 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1683 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1685 /* Functions for allowing a target to modify its disassembler options. */
1687 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1688 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1690 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1691 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1693 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1694 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1696 /* Type alignment override method. Return the architecture specific
1697 alignment required for TYPE. If there is no special handling
1698 required for TYPE then return the value 0, GDB will then apply the
1699 default rules as laid out in gdbtypes.c:type_align. */
1701 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1702 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1703 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1705 /* Return a string containing any flags for the given PC in the given FRAME. */
1707 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1708 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1709 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1711 /* Read core file mappings */
1713 typedef void (gdbarch_read_core_file_mappings_ftype
) (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
, gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
)> loop_cb
);
1714 extern void gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
, gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
)> loop_cb
);
1715 extern void set_gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, gdbarch_read_core_file_mappings_ftype
*read_core_file_mappings
);
1717 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1720 /* Mechanism for co-ordinating the selection of a specific
1723 GDB targets (*-tdep.c) can register an interest in a specific
1724 architecture. Other GDB components can register a need to maintain
1725 per-architecture data.
1727 The mechanisms below ensures that there is only a loose connection
1728 between the set-architecture command and the various GDB
1729 components. Each component can independently register their need
1730 to maintain architecture specific data with gdbarch.
1734 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1737 The more traditional mega-struct containing architecture specific
1738 data for all the various GDB components was also considered. Since
1739 GDB is built from a variable number of (fairly independent)
1740 components it was determined that the global aproach was not
1744 /* Register a new architectural family with GDB.
1746 Register support for the specified ARCHITECTURE with GDB. When
1747 gdbarch determines that the specified architecture has been
1748 selected, the corresponding INIT function is called.
1752 The INIT function takes two parameters: INFO which contains the
1753 information available to gdbarch about the (possibly new)
1754 architecture; ARCHES which is a list of the previously created
1755 ``struct gdbarch'' for this architecture.
1757 The INFO parameter is, as far as possible, be pre-initialized with
1758 information obtained from INFO.ABFD or the global defaults.
1760 The ARCHES parameter is a linked list (sorted most recently used)
1761 of all the previously created architures for this architecture
1762 family. The (possibly NULL) ARCHES->gdbarch can used to access
1763 values from the previously selected architecture for this
1764 architecture family.
1766 The INIT function shall return any of: NULL - indicating that it
1767 doesn't recognize the selected architecture; an existing ``struct
1768 gdbarch'' from the ARCHES list - indicating that the new
1769 architecture is just a synonym for an earlier architecture (see
1770 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1771 - that describes the selected architecture (see gdbarch_alloc()).
1773 The DUMP_TDEP function shall print out all target specific values.
1774 Care should be taken to ensure that the function works in both the
1775 multi-arch and non- multi-arch cases. */
1779 struct gdbarch
*gdbarch
;
1780 struct gdbarch_list
*next
;
1786 /* Ensure the union is zero-initialized. Relies on the fact that there's
1787 no member larger than TDESC_DATA. */
1791 const struct bfd_arch_info
*bfd_arch_info
= nullptr;
1793 enum bfd_endian byte_order
= BFD_ENDIAN_UNKNOWN
;
1795 enum bfd_endian byte_order_for_code
= BFD_ENDIAN_UNKNOWN
;
1797 bfd
*abfd
= nullptr;
1801 /* Architecture-specific target description data. Numerous targets
1802 need only this, so give them an easy way to hold it. */
1803 struct tdesc_arch_data
*tdesc_data
;
1805 /* SPU file system ID. This is a single integer, so using the
1806 generic form would only complicate code. Other targets may
1807 reuse this member if suitable. */
1811 enum gdb_osabi osabi
= GDB_OSABI_UNKNOWN
;
1813 const struct target_desc
*target_desc
= nullptr;
1816 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1817 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1819 /* DEPRECATED - use gdbarch_register() */
1820 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1822 extern void gdbarch_register (enum bfd_architecture architecture
,
1823 gdbarch_init_ftype
*,
1824 gdbarch_dump_tdep_ftype
*);
1827 /* Return a freshly allocated, NULL terminated, array of the valid
1828 architecture names. Since architectures are registered during the
1829 _initialize phase this function only returns useful information
1830 once initialization has been completed. */
1832 extern const char **gdbarch_printable_names (void);
1835 /* Helper function. Search the list of ARCHES for a GDBARCH that
1836 matches the information provided by INFO. */
1838 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1841 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1842 basic initialization using values obtained from the INFO and TDEP
1843 parameters. set_gdbarch_*() functions are called to complete the
1844 initialization of the object. */
1846 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1849 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1850 It is assumed that the caller freeds the ``struct
1853 extern void gdbarch_free (struct gdbarch
*);
1855 /* Get the obstack owned by ARCH. */
1857 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1859 /* Helper function. Allocate memory from the ``struct gdbarch''
1860 obstack. The memory is freed when the corresponding architecture
1863 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1865 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1867 /* Duplicate STRING, returning an equivalent string that's allocated on the
1868 obstack associated with GDBARCH. The string is freed when the corresponding
1869 architecture is also freed. */
1871 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1873 /* Helper function. Force an update of the current architecture.
1875 The actual architecture selected is determined by INFO, ``(gdb) set
1876 architecture'' et.al., the existing architecture and BFD's default
1877 architecture. INFO should be initialized to zero and then selected
1878 fields should be updated.
1880 Returns non-zero if the update succeeds. */
1882 extern int gdbarch_update_p (struct gdbarch_info info
);
1885 /* Helper function. Find an architecture matching info.
1887 INFO should have relevant fields set, and then finished using
1890 Returns the corresponding architecture, or NULL if no matching
1891 architecture was found. */
1893 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1896 /* Helper function. Set the target gdbarch to "gdbarch". */
1898 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1901 /* Register per-architecture data-pointer.
1903 Reserve space for a per-architecture data-pointer. An identifier
1904 for the reserved data-pointer is returned. That identifer should
1905 be saved in a local static variable.
1907 Memory for the per-architecture data shall be allocated using
1908 gdbarch_obstack_zalloc. That memory will be deleted when the
1909 corresponding architecture object is deleted.
1911 When a previously created architecture is re-selected, the
1912 per-architecture data-pointer for that previous architecture is
1913 restored. INIT() is not re-called.
1915 Multiple registrarants for any architecture are allowed (and
1916 strongly encouraged). */
1918 struct gdbarch_data
;
1920 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1921 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1922 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1923 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1925 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1928 /* Set the dynamic target-system-dependent parameters (architecture,
1929 byte-order, ...) using information found in the BFD. */
1931 extern void set_gdbarch_from_file (bfd
*);
1934 /* Initialize the current architecture to the "first" one we find on
1937 extern void initialize_current_architecture (void);
1939 /* gdbarch trace variable */
1940 extern unsigned int gdbarch_debug
;
1942 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1944 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1947 gdbarch_num_cooked_regs (gdbarch
*arch
)
1949 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);