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 struct gdbarch_tdep
{};
67 /* The architecture associated with the inferior through the
68 connection to the target.
70 The architecture vector provides some information that is really a
71 property of the inferior, accessed through a particular target:
72 ptrace operations; the layout of certain RSP packets; the solib_ops
73 vector; etc. To differentiate architecture accesses to
74 per-inferior/target properties from
75 per-thread/per-frame/per-objfile properties, accesses to
76 per-inferior/target properties should be made through this
79 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
80 extern struct gdbarch
*target_gdbarch (void);
82 /* Callback type for the 'iterate_over_objfiles_in_search_order'
85 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
86 (struct objfile
*objfile
, void *cb_data
);
88 /* Callback type for regset section iterators. The callback usually
89 invokes the REGSET's supply or collect method, to which it must
90 pass a buffer - for collects this buffer will need to be created using
91 COLLECT_SIZE, for supply the existing buffer being read from should
92 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
93 is used for diagnostic messages. CB_DATA should have been passed
94 unchanged through the iterator. */
96 typedef void (iterate_over_regset_sections_cb
)
97 (const char *sect_name
, int supply_size
, int collect_size
,
98 const struct regset
*regset
, const char *human_name
, void *cb_data
);
100 /* For a function call, does the function return a value using a
101 normal value return or a structure return - passing a hidden
102 argument pointing to storage. For the latter, there are two
103 cases: language-mandated structure return and target ABI
106 enum function_call_return_method
108 /* Standard value return. */
109 return_method_normal
= 0,
111 /* Language ABI structure return. This is handled
112 by passing the return location as the first parameter to
113 the function, even preceding "this". */
114 return_method_hidden_param
,
116 /* Target ABI struct return. This is target-specific; for instance,
117 on ia64 the first argument is passed in out0 but the hidden
118 structure return pointer would normally be passed in r8. */
119 return_method_struct
,
122 enum class memtag_type
124 /* Logical tag, the tag that is stored in unused bits of a pointer to a
128 /* Allocation tag, the tag that is associated with every granule of memory in
129 the physical address space. Allocation tags are used to validate memory
130 accesses via pointers containing logical tags. */
134 /* Callback types for 'read_core_file_mappings' gdbarch method. */
136 using read_core_file_mappings_pre_loop_ftype
=
137 gdb::function_view
<void (ULONGEST count
)>;
139 using read_core_file_mappings_loop_ftype
=
140 gdb::function_view
<void (int num
,
144 const char *filename
,
145 const bfd_build_id
*build_id
)>;
148 /* The following are pre-initialized by GDBARCH. */
150 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
151 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
153 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
154 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
156 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
157 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
159 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
160 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
162 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
163 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
166 /* The following are initialized by the target dependent code. */
168 /* Number of bits in a short or unsigned short for the target machine. */
170 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
171 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
173 /* Number of bits in an int or unsigned int for the target machine. */
175 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
176 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
178 /* Number of bits in a long or unsigned long for the target machine. */
180 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
181 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
183 /* Number of bits in a long long or unsigned long long for the target
186 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
189 /* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and
190 "long double". These bit/format pairs should eventually be combined
191 into a single object. For the moment, just initialize them as a pair.
192 Each format describes both the big and little endian layouts (if
195 extern int gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
, int bfloat16_bit
);
198 extern const struct floatformat
** gdbarch_bfloat16_format (struct gdbarch
*gdbarch
);
199 extern void set_gdbarch_bfloat16_format (struct gdbarch
*gdbarch
, const struct floatformat
** bfloat16_format
);
201 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
202 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
204 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
205 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
207 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
208 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
210 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
211 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
213 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
214 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
216 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
217 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
219 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
220 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
222 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
223 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
225 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
226 starting with C++11. */
228 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
229 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
231 /* One if `wchar_t' is signed, zero if unsigned. */
233 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
234 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
236 /* Returns the floating-point format to be used for values of length LENGTH.
237 NAME, if non-NULL, is the type name, which may be used to distinguish
238 different target formats of the same length. */
240 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
241 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
242 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
244 /* For most targets, a pointer on the target and its representation as an
245 address in GDB have the same size and "look the same". For such a
246 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
247 / addr_bit will be set from it.
249 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
250 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
251 gdbarch_address_to_pointer as well.
253 ptr_bit is the size of a pointer on the target */
255 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
256 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
258 /* addr_bit is the size of a target address as represented in gdb */
260 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
261 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
263 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
264 info. For .debug_frame FDEs, this is supposed to be the target address
265 size from the associated CU header, and which is equivalent to the
266 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
267 Unfortunately there is no good way to determine this value. Therefore
268 dwarf2_addr_size simply defaults to the target pointer size.
270 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
271 defined using the target's pointer size so far.
273 Note that dwarf2_addr_size only needs to be redefined by a target if the
274 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
275 and if Dwarf versions < 4 need to be supported. */
277 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
278 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
280 /* One if `char' acts like `signed char', zero if `unsigned char'. */
282 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
283 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
285 extern bool gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
287 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
288 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
289 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
291 extern bool gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
293 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
294 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
295 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
297 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
298 whole scheme for dealing with "frames" and "frame pointers" needs a
299 serious shakedown. */
301 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
302 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
303 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
305 extern bool gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
307 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
308 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
309 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
311 /* Read a register into a new struct value. If the register is wholly
312 or partly unavailable, this should call mark_value_bytes_unavailable
313 as appropriate. If this is defined, then pseudo_register_read will
316 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
318 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
319 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
320 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
322 extern bool gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
324 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
325 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
326 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
328 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
329 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
331 /* This macro gives the number of pseudo-registers that live in the
332 register namespace but do not get fetched or stored on the target.
333 These pseudo-registers may be aliases for other registers,
334 combinations of other registers, or they may be computed by GDB. */
336 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
337 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
339 /* Assemble agent expression bytecode to collect pseudo-register REG.
340 Return -1 if something goes wrong, 0 otherwise. */
342 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
344 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
345 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
346 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
348 /* Assemble agent expression bytecode to push the value of pseudo-register
349 REG on the interpreter stack.
350 Return -1 if something goes wrong, 0 otherwise. */
352 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
354 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
355 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
356 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
358 /* Some architectures can display additional information for specific
360 UIOUT is the output stream where the handler will place information. */
362 extern bool gdbarch_report_signal_info_p (struct gdbarch
*gdbarch
);
364 typedef void (gdbarch_report_signal_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
365 extern void gdbarch_report_signal_info (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
366 extern void set_gdbarch_report_signal_info (struct gdbarch
*gdbarch
, gdbarch_report_signal_info_ftype
*report_signal_info
);
368 /* GDB's standard (or well known) register numbers. These can map onto
369 a real register or a pseudo (computed) register or not be defined at
371 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
373 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
374 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
376 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
377 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
379 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
380 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
382 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
383 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
385 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
387 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
388 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
389 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
391 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
393 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
394 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
395 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
397 /* Convert from an sdb register number to an internal gdb register number. */
399 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
400 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
401 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
403 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
404 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
406 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
407 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
408 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
410 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
411 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
412 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
414 /* Return the type of a register specified by the architecture. Only
415 the register cache should call this function directly; others should
416 use "register_type". */
418 extern bool gdbarch_register_type_p (struct gdbarch
*gdbarch
);
420 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
421 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
422 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
424 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
425 a dummy frame. A dummy frame is created before an inferior call,
426 the frame_id returned here must match the frame_id that was built
427 for the inferior call. Usually this means the returned frame_id's
428 stack address should match the address returned by
429 gdbarch_push_dummy_call, and the returned frame_id's code address
430 should match the address at which the breakpoint was set in the dummy
433 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
434 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
435 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
437 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
438 deprecated_fp_regnum. */
440 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
441 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
443 extern bool gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
445 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
);
446 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
);
447 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
449 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
450 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
452 extern bool gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
454 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
);
455 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
);
456 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
458 /* Return true if the code of FRAME is writable. */
460 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
461 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
462 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
464 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
465 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
466 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
468 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
469 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
470 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
472 extern bool gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
474 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
475 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
476 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
478 /* MAP a GDB RAW register number onto a simulator register number. See
479 also include/...-sim.h. */
481 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
482 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
483 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
485 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
486 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
487 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
489 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
490 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
491 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
493 /* Determine the address where a longjmp will land and save this address
494 in PC. Return nonzero on success.
496 FRAME corresponds to the longjmp frame. */
498 extern bool gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
500 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
501 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
502 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
504 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
505 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
507 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
508 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
509 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
511 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
512 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
);
513 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
515 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
516 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
517 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
519 /* Construct a value representing the contents of register REGNUM in
520 frame FRAME_ID, interpreted as type TYPE. The routine needs to
521 allocate and return a struct value with all value attributes
522 (but not the value contents) filled in. */
524 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
525 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
526 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
528 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
529 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
530 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
532 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
533 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
534 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
536 extern bool gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
538 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
539 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
540 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
542 /* Return the return-value convention that will be used by FUNCTION
543 to return a value of type VALTYPE. FUNCTION may be NULL in which
544 case the return convention is computed based only on VALTYPE.
546 If READBUF is not NULL, extract the return value and save it in this buffer.
548 If WRITEBUF is not NULL, it contains a return value which will be
549 stored into the appropriate register. This can be used when we want
550 to force the value returned by a function (see the "return" command
553 extern bool gdbarch_return_value_p (struct gdbarch
*gdbarch
);
555 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
);
556 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
);
557 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
559 /* Return true if the return value of function is stored in the first hidden
560 parameter. In theory, this feature should be language-dependent, specified
561 by language and its ABI, such as C++. Unfortunately, compiler may
562 implement it to a target-dependent feature. So that we need such hook here
563 to be aware of this in GDB. */
565 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
566 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
567 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
);
569 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
570 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
571 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
573 extern bool gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
575 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
576 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
577 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
579 /* On some platforms, a single function may provide multiple entry points,
580 e.g. one that is used for function-pointer calls and a different one
581 that is used for direct function calls.
582 In order to ensure that breakpoints set on the function will trigger
583 no matter via which entry point the function is entered, a platform
584 may provide the skip_entrypoint callback. It is called with IP set
585 to the main entry point of a function (as determined by the symbol table),
586 and should return the address of the innermost entry point, where the
587 actual breakpoint needs to be set. Note that skip_entrypoint is used
588 by GDB common code even when debugging optimized code, where skip_prologue
591 extern bool gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
593 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
594 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
595 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
597 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
598 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
599 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
601 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
602 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
603 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
605 /* Return the breakpoint kind for this target based on *PCPTR. */
607 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
608 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
609 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
611 /* Return the software breakpoint from KIND. KIND can have target
612 specific meaning like the Z0 kind parameter.
613 SIZE is set to the software breakpoint's length in memory. */
615 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
616 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
617 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
619 /* Return the breakpoint kind for this target based on the current
620 processor state (e.g. the current instruction mode on ARM) and the
621 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
623 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
624 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
625 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
627 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
629 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
630 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
631 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
633 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
634 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
635 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
637 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
638 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
639 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
641 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
642 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
644 /* A function can be addressed by either it's "pointer" (possibly a
645 descriptor address) or "entry point" (first executable instruction).
646 The method "convert_from_func_ptr_addr" converting the former to the
647 latter. gdbarch_deprecated_function_start_offset is being used to implement
648 a simplified subset of that functionality - the function's address
649 corresponds to the "function pointer" and the function's start
650 corresponds to the "function entry point" - and hence is redundant. */
652 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
653 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
655 /* Return the remote protocol register number associated with this
656 register. Normally the identity mapping. */
658 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
659 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
660 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
662 /* Fetch the target specific address used to represent a load module. */
664 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
666 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
667 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
668 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
670 /* Return the thread-local address at OFFSET in the thread-local
671 storage for the thread PTID and the shared library or executable
672 file given by LM_ADDR. If that block of thread-local storage hasn't
673 been allocated yet, this function may throw an error. LM_ADDR may
674 be zero for statically linked multithreaded inferiors. */
676 extern bool gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
678 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
679 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
680 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
682 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
683 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
685 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
686 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
687 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
689 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
690 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
691 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
693 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
694 frame-base. Enable frame-base before frame-unwind. */
696 extern bool gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
698 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
699 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
700 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
702 extern bool gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
704 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
705 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
706 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
708 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
709 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
710 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
712 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
713 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
715 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
716 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
717 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
719 /* On some machines there are bits in addresses which are not really
720 part of the address, but are used by the kernel, the hardware, etc.
721 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
722 we get a "real" address such as one would find in a symbol table.
723 This is used only for addresses of instructions, and even then I'm
724 not sure it's used in all contexts. It exists to deal with there
725 being a few stray bits in the PC which would mislead us, not as some
726 sort of generic thing to handle alignment or segmentation (it's
727 possible it should be in TARGET_READ_PC instead). */
729 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
730 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
731 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
733 /* On some machines, not all bits of an address word are significant.
734 For example, on AArch64, the top bits of an address known as the "tag"
735 are ignored by the kernel, the hardware, etc. and can be regarded as
736 additional data associated with the address. */
738 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
739 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
741 /* Return a string representation of the memory tag TAG. */
743 typedef std::string (gdbarch_memtag_to_string_ftype
) (struct gdbarch
*gdbarch
, struct value
*tag
);
744 extern std::string
gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, struct value
*tag
);
745 extern void set_gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, gdbarch_memtag_to_string_ftype
*memtag_to_string
);
747 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
748 must be either a pointer or a reference type. */
750 typedef bool (gdbarch_tagged_address_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
751 extern bool gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, struct value
*address
);
752 extern void set_gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, gdbarch_tagged_address_p_ftype
*tagged_address_p
);
754 /* Return true if the tag from ADDRESS matches the memory tag for that
755 particular address. Return false otherwise. */
757 typedef bool (gdbarch_memtag_matches_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
758 extern bool gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, struct value
*address
);
759 extern void set_gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, gdbarch_memtag_matches_p_ftype
*memtag_matches_p
);
761 /* Set the tags of type TAG_TYPE, for the memory address range
762 [ADDRESS, ADDRESS + LENGTH) to TAGS.
763 Return true if successful and false otherwise. */
765 typedef bool (gdbarch_set_memtags_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
766 extern bool gdbarch_set_memtags (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
767 extern void set_gdbarch_set_memtags (struct gdbarch
*gdbarch
, gdbarch_set_memtags_ftype
*set_memtags
);
769 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
770 assuming ADDRESS is tagged. */
772 typedef struct value
* (gdbarch_get_memtag_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
773 extern struct value
* gdbarch_get_memtag (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
774 extern void set_gdbarch_get_memtag (struct gdbarch
*gdbarch
, gdbarch_get_memtag_ftype
*get_memtag
);
776 /* memtag_granule_size is the size of the allocation tag granule, for
777 architectures that support memory tagging.
778 This is 0 for architectures that do not support memory tagging.
779 For a non-zero value, this represents the number of bytes of memory per tag. */
781 extern CORE_ADDR
gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
);
782 extern void set_gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
, CORE_ADDR memtag_granule_size
);
784 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
785 indicates if the target needs software single step. An ISA method to
788 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
789 target can single step. If not, then implement single step using breakpoints.
791 Return a vector of addresses on which the software single step
792 breakpoints should be inserted. NULL means software single step is
794 Multiple breakpoints may be inserted for some instructions such as
795 conditional branch. However, each implementation must always evaluate
796 the condition and only put the breakpoint at the branch destination if
797 the condition is true, so that we ensure forward progress when stepping
798 past a conditional branch to self. */
800 extern bool gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
802 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
803 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
804 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
806 /* Return non-zero if the processor is executing a delay slot and a
807 further single-step is needed before the instruction finishes. */
809 extern bool gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
811 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
812 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
813 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
815 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
816 disassembler. Perhaps objdump can handle it? */
818 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
819 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
820 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
822 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
823 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
824 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
826 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
827 evaluates non-zero, this is the address where the debugger will place
828 a step-resume breakpoint to get us past the dynamic linker. */
830 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
831 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
832 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
834 /* Some systems also have trampoline code for returning from shared libs. */
836 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
837 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
838 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
840 /* Return true if PC lies inside an indirect branch thunk. */
842 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
843 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
844 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
846 /* A target might have problems with watchpoints as soon as the stack
847 frame of the current function has been destroyed. This mostly happens
848 as the first action in a function's epilogue. stack_frame_destroyed_p()
849 is defined to return a non-zero value if either the given addr is one
850 instruction after the stack destroying instruction up to the trailing
851 return instruction or if we can figure out that the stack frame has
852 already been invalidated regardless of the value of addr. Targets
853 which don't suffer from that problem could just let this functionality
856 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
857 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
858 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
860 /* Process an ELF symbol in the minimal symbol table in a backend-specific
861 way. Normally this hook is supposed to do nothing, however if required,
862 then this hook can be used to apply tranformations to symbols that are
863 considered special in some way. For example the MIPS backend uses it
864 to interpret `st_other' information to mark compressed code symbols so
865 that they can be treated in the appropriate manner in the processing of
866 the main symbol table and DWARF-2 records. */
868 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
870 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
871 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
872 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
874 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
875 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
876 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
878 /* Process a symbol in the main symbol table in a backend-specific way.
879 Normally this hook is supposed to do nothing, however if required,
880 then this hook can be used to apply tranformations to symbols that
881 are considered special in some way. This is currently used by the
882 MIPS backend to make sure compressed code symbols have the ISA bit
883 set. This in turn is needed for symbol values seen in GDB to match
884 the values used at the runtime by the program itself, for function
885 and label references. */
887 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
888 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
889 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
891 /* Adjust the address retrieved from a DWARF-2 record other than a line
892 entry in a backend-specific way. Normally this hook is supposed to
893 return the address passed unchanged, however if that is incorrect for
894 any reason, then this hook can be used to fix the address up in the
895 required manner. This is currently used by the MIPS backend to make
896 sure addresses in FDE, range records, etc. referring to compressed
897 code have the ISA bit set, matching line information and the symbol
900 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
901 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
902 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
904 /* Adjust the address updated by a line entry in a backend-specific way.
905 Normally this hook is supposed to return the address passed unchanged,
906 however in the case of inconsistencies in these records, this hook can
907 be used to fix them up in the required manner. This is currently used
908 by the MIPS backend to make sure all line addresses in compressed code
909 are presented with the ISA bit set, which is not always the case. This
910 in turn ensures breakpoint addresses are correctly matched against the
913 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
914 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
915 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
917 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
918 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
920 /* See comment in target.h about continuable, steppable and
921 non-steppable watchpoints. */
923 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
924 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
926 extern bool gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
928 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
929 extern type_instance_flags
gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
930 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
932 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
934 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
935 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
936 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
);
938 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
939 FS are passed from the generic execute_cfa_program function. */
941 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
942 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
943 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
945 /* Return the appropriate type_flags for the supplied address class.
946 This function should return true if the address class was recognized and
947 type_flags was set, false otherwise. */
949 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
951 typedef bool (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
952 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
953 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
);
955 /* Is a register in a group */
957 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
958 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
959 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
961 /* Fetch the pointer to the ith function argument. */
963 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
965 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
966 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
967 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
969 /* Iterate over all supported register notes in a core file. For each
970 supported register note section, the iterator must call CB and pass
971 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
972 the supported register note sections based on the current register
973 values. Otherwise it should enumerate all supported register note
976 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
978 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
979 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
980 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
982 /* Create core file notes */
984 extern bool gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
986 typedef gdb::unique_xmalloc_ptr
<char> (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
987 extern gdb::unique_xmalloc_ptr
<char> gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
988 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
990 /* Find core file memory regions */
992 extern bool gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
994 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
995 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
996 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
998 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
999 core file into buffer READBUF with length LEN. Return the number of bytes read
1000 (zero indicates failure).
1001 failed, otherwise, return the red length of READBUF. */
1003 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
1005 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1006 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1007 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
1009 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
1010 libraries list from core file into buffer READBUF with length LEN.
1011 Return the number of bytes read (zero indicates failure). */
1013 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
1015 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1016 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1017 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
1019 /* How the core target converts a PTID from a core file to a string. */
1021 extern bool gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
1023 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
1024 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
1025 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
1027 /* How the core target extracts the name of a thread from a core file. */
1029 extern bool gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
1031 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1032 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1033 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
1035 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
1036 from core file into buffer READBUF with length LEN. Return the number
1037 of bytes read (zero indicates EOF, a negative value indicates failure). */
1039 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
1041 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1042 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1043 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
1045 /* BFD target to use when generating a core file. */
1047 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
1049 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
1050 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
1052 /* If the elements of C++ vtables are in-place function descriptors rather
1053 than normal function pointers (which may point to code or a descriptor),
1056 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
1057 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
1059 /* Set if the least significant bit of the delta is used instead of the least
1060 significant bit of the pfn for pointers to virtual member functions. */
1062 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
1063 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
1065 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1067 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
1068 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
1069 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
1071 /* The maximum length of an instruction on this architecture in bytes. */
1073 extern bool gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1075 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1076 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1078 /* Copy the instruction at FROM to TO, and make any adjustments
1079 necessary to single-step it at that address.
1081 REGS holds the state the thread's registers will have before
1082 executing the copied instruction; the PC in REGS will refer to FROM,
1083 not the copy at TO. The caller should update it to point at TO later.
1085 Return a pointer to data of the architecture's choice to be passed
1086 to gdbarch_displaced_step_fixup.
1088 For a general explanation of displaced stepping and how GDB uses it,
1089 see the comments in infrun.c.
1091 The TO area is only guaranteed to have space for
1092 gdbarch_max_insn_length (arch) bytes, so this function must not
1093 write more bytes than that to that area.
1095 If you do not provide this function, GDB assumes that the
1096 architecture does not support displaced stepping.
1098 If the instruction cannot execute out of line, return NULL. The
1099 core falls back to stepping past the instruction in-line instead in
1102 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1104 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
);
1105 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1106 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1108 /* Return true if GDB should use hardware single-stepping to execute a displaced
1109 step instruction. If false, GDB will simply restart execution at the
1110 displaced instruction location, and it is up to the target to ensure GDB will
1111 receive control again (e.g. by placing a software breakpoint instruction into
1112 the displaced instruction buffer).
1114 The default implementation returns false on all targets that provide a
1115 gdbarch_software_single_step routine, and true otherwise. */
1117 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
);
1118 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
);
1119 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1121 /* Fix up the state resulting from successfully single-stepping a
1122 displaced instruction, to give the result we would have gotten from
1123 stepping the instruction in its original location.
1125 REGS is the register state resulting from single-stepping the
1126 displaced instruction.
1128 CLOSURE is the result from the matching call to
1129 gdbarch_displaced_step_copy_insn.
1131 If you provide gdbarch_displaced_step_copy_insn.but not this
1132 function, then GDB assumes that no fixup is needed after
1133 single-stepping the instruction.
1135 For a general explanation of displaced stepping and how GDB uses it,
1136 see the comments in infrun.c. */
1138 extern bool gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1140 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
);
1141 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
);
1142 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1144 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1146 Throw an exception if any unexpected error happens. */
1148 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch
*gdbarch
);
1150 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1151 extern displaced_step_prepare_status
gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1152 extern void set_gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, gdbarch_displaced_step_prepare_ftype
*displaced_step_prepare
);
1154 /* Clean up after a displaced step of THREAD. */
1156 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1157 extern displaced_step_finish_status
gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1158 extern void set_gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, gdbarch_displaced_step_finish_ftype
*displaced_step_finish
);
1160 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1162 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch
*gdbarch
);
1164 typedef const displaced_step_copy_insn_closure
* (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype
) (inferior
*inf
, CORE_ADDR addr
);
1165 extern const displaced_step_copy_insn_closure
* gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch
*gdbarch
, inferior
*inf
, CORE_ADDR addr
);
1166 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
);
1168 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1169 contents of all displaced step buffers in the child's address space. */
1171 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype
) (inferior
*parent_inf
, ptid_t child_ptid
);
1172 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch
*gdbarch
, inferior
*parent_inf
, ptid_t child_ptid
);
1173 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
);
1175 /* Relocate an instruction to execute at a different address. OLDLOC
1176 is the address in the inferior memory where the instruction to
1177 relocate is currently at. On input, TO points to the destination
1178 where we want the instruction to be copied (and possibly adjusted)
1179 to. On output, it points to one past the end of the resulting
1180 instruction(s). The effect of executing the instruction at TO shall
1181 be the same as if executing it at FROM. For example, call
1182 instructions that implicitly push the return address on the stack
1183 should be adjusted to return to the instruction after OLDLOC;
1184 relative branches, and other PC-relative instructions need the
1185 offset adjusted; etc. */
1187 extern bool gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1189 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1190 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1191 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1193 /* Refresh overlay mapped state for section OSECT. */
1195 extern bool gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1197 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1198 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1199 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1201 extern bool gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1203 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1204 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1205 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1207 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1209 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1210 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1212 /* Parse the instruction at ADDR storing in the record execution log
1213 the registers REGCACHE and memory ranges that will be affected when
1214 the instruction executes, along with their current values.
1215 Return -1 if something goes wrong, 0 otherwise. */
1217 extern bool gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1219 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1220 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1221 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1223 /* Save process state after a signal.
1224 Return -1 if something goes wrong, 0 otherwise. */
1226 extern bool gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1228 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1229 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1230 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1232 /* Signal translation: translate inferior's signal (target's) number
1233 into GDB's representation. The implementation of this method must
1234 be host independent. IOW, don't rely on symbols of the NAT_FILE
1235 header (the nm-*.h files), the host <signal.h> header, or similar
1236 headers. This is mainly used when cross-debugging core files ---
1237 "Live" targets hide the translation behind the target interface
1238 (target_wait, target_resume, etc.). */
1240 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1242 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1243 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1244 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1246 /* Signal translation: translate the GDB's internal signal number into
1247 the inferior's signal (target's) representation. The implementation
1248 of this method must be host independent. IOW, don't rely on symbols
1249 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1250 header, or similar headers.
1251 Return the target signal number if found, or -1 if the GDB internal
1252 signal number is invalid. */
1254 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1256 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1257 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1258 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1260 /* Extra signal info inspection.
1262 Return a type suitable to inspect extra signal information. */
1264 extern bool gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1266 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1267 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1268 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1270 /* Record architecture-specific information from the symbol table. */
1272 extern bool gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1274 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1275 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1276 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1278 /* Function for the 'catch syscall' feature.
1279 Get architecture-specific system calls information from registers. */
1281 extern bool gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1283 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1284 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1285 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1287 /* The filename of the XML syscall for this architecture. */
1289 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1290 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1292 /* Information about system calls from this architecture */
1294 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1295 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1297 /* SystemTap related fields and functions.
1298 A NULL-terminated array of prefixes used to mark an integer constant
1299 on the architecture's assembly.
1300 For example, on x86 integer constants are written as:
1302 $10 ;; integer constant 10
1304 in this case, this prefix would be the character `$'. */
1306 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1307 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1309 /* A NULL-terminated array of suffixes used to mark an integer constant
1310 on the architecture's assembly. */
1312 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1313 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1315 /* A NULL-terminated array of prefixes used to mark a register name on
1316 the architecture's assembly.
1317 For example, on x86 the register name is written as:
1319 %eax ;; register eax
1321 in this case, this prefix would be the character `%'. */
1323 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1324 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1326 /* A NULL-terminated array of suffixes used to mark a register name on
1327 the architecture's assembly. */
1329 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1330 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1332 /* A NULL-terminated array of prefixes 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 prefix also for register
1341 displacement, e.g., `4(%eax)' on x86. */
1343 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1344 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1346 /* A NULL-terminated array of suffixes used to mark a register
1347 indirection on the architecture's assembly.
1348 For example, on x86 the register indirection is written as:
1350 (%eax) ;; indirecting eax
1352 in this case, this prefix would be the charater `)'.
1354 Please note that we use the indirection suffix also for register
1355 displacement, e.g., `4(%eax)' on x86. */
1357 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1358 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1360 /* Prefix(es) used to name a register using GDB's nomenclature.
1362 For example, on PPC a register is represented by a number in the assembly
1363 language (e.g., `10' is the 10th general-purpose register). However,
1364 inside GDB this same register has an `r' appended to its name, so the 10th
1365 register would be represented as `r10' internally. */
1367 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1368 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1370 /* Suffix used to name a register using GDB's nomenclature. */
1372 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1373 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1375 /* Check if S is a single operand.
1377 Single operands can be:
1378 - Literal integers, e.g. `$10' on x86
1379 - Register access, e.g. `%eax' on x86
1380 - Register indirection, e.g. `(%eax)' on x86
1381 - Register displacement, e.g. `4(%eax)' on x86
1383 This function should check for these patterns on the string
1384 and return 1 if some were found, or zero otherwise. Please try to match
1385 as much info as you can from the string, i.e., if you have to match
1386 something like `(%', do not match just the `('. */
1388 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1390 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1391 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1392 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1394 /* Function used to handle a "special case" in the parser.
1396 A "special case" is considered to be an unknown token, i.e., a token
1397 that the parser does not know how to parse. A good example of special
1398 case would be ARM's register displacement syntax:
1400 [R0, #4] ;; displacing R0 by 4
1402 Since the parser assumes that a register displacement is of the form:
1404 <number> <indirection_prefix> <register_name> <indirection_suffix>
1406 it means that it will not be able to recognize and parse this odd syntax.
1407 Therefore, we should add a special case function that will handle this token.
1409 This function should generate the proper expression form of the expression
1410 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1411 and so on). It should also return 1 if the parsing was successful, or zero
1412 if the token was not recognized as a special token (in this case, returning
1413 zero means that the special parser is deferring the parsing to the generic
1414 parser), and should advance the buffer pointer (p->arg). */
1416 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1418 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1419 extern expr::operation_up
gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1420 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1422 /* Perform arch-dependent adjustments to a register name.
1424 In very specific situations, it may be necessary for the register
1425 name present in a SystemTap probe's argument to be handled in a
1426 special way. For example, on i386, GCC may over-optimize the
1427 register allocation and use smaller registers than necessary. In
1428 such cases, the client that is reading and evaluating the SystemTap
1429 probe (ourselves) will need to actually fetch values from the wider
1430 version of the register in question.
1432 To illustrate the example, consider the following probe argument
1437 This argument says that its value can be found at the %ax register,
1438 which is a 16-bit register. However, the argument's prefix says
1439 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1440 this case, GDB should actually fetch the probe's value from register
1441 %eax, not %ax. In this scenario, this function would actually
1442 replace the register name from %ax to %eax.
1444 The rationale for this can be found at PR breakpoints/24541. */
1446 extern bool gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1448 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1449 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1450 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1452 /* DTrace related functions.
1453 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1454 NARG must be >= 0. */
1456 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1458 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, int narg
);
1459 extern expr::operation_up
gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, int narg
);
1460 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1462 /* True if the given ADDR does not contain the instruction sequence
1463 corresponding to a disabled DTrace is-enabled probe. */
1465 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1467 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1468 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1469 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1471 /* Enable a DTrace is-enabled probe at ADDR. */
1473 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1475 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1476 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1477 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1479 /* Disable a DTrace is-enabled probe at ADDR. */
1481 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1483 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1484 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1485 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1487 /* True if the list of shared libraries is one and only for all
1488 processes, as opposed to a list of shared libraries per inferior.
1489 This usually means that all processes, although may or may not share
1490 an address space, will see the same set of symbols at the same
1493 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1494 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1496 /* On some targets, even though each inferior has its own private
1497 address space, the debug interface takes care of making breakpoints
1498 visible to all address spaces automatically. For such cases,
1499 this property should be set to true. */
1501 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1502 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1504 /* True if inferiors share an address space (e.g., uClinux). */
1506 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1507 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1508 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1510 /* True if a fast tracepoint can be set at an address. */
1512 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1513 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1514 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1516 /* Guess register state based on tracepoint location. Used for tracepoints
1517 where no registers have been collected, but there's only one location,
1518 allowing us to guess the PC value, and perhaps some other registers.
1519 On entry, regcache has all registers marked as unavailable. */
1521 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1522 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1523 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1525 /* Return the "auto" target charset. */
1527 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1528 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1529 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1531 /* Return the "auto" target wide charset. */
1533 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1534 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1535 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1537 /* If non-empty, this is a file extension that will be opened in place
1538 of the file extension reported by the shared library list.
1540 This is most useful for toolchains that use a post-linker tool,
1541 where the names of the files run on the target differ in extension
1542 compared to the names of the files GDB should load for debug info. */
1544 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1545 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1547 /* If true, the target OS has DOS-based file system semantics. That
1548 is, absolute paths include a drive name, and the backslash is
1549 considered a directory separator. */
1551 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1552 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1554 /* Generate bytecodes to collect the return address in a frame.
1555 Since the bytecodes run on the target, possibly with GDB not even
1556 connected, the full unwinding machinery is not available, and
1557 typically this function will issue bytecodes for one or more likely
1558 places that the return address may be found. */
1560 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1561 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1562 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1564 /* Implement the "info proc" command. */
1566 extern bool gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1568 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1569 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1570 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1572 /* Implement the "info proc" command for core files. Noe that there
1573 are two "info_proc"-like methods on gdbarch -- one for core files,
1574 one for live targets. */
1576 extern bool gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1578 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1579 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1580 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1582 /* Iterate over all objfiles in the order that makes the most sense
1583 for the architecture to make global symbol searches.
1585 CB is a callback function where OBJFILE is the objfile to be searched,
1586 and CB_DATA a pointer to user-defined data (the same data that is passed
1587 when calling this gdbarch method). The iteration stops if this function
1590 CB_DATA is a pointer to some user-defined data to be passed to
1593 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1594 inspected when the symbol search was requested. */
1596 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
);
1597 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
);
1598 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
);
1600 /* Ravenscar arch-dependent ops. */
1602 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1603 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1605 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1607 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1608 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1609 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1611 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1613 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1614 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1615 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1617 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1619 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1620 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1621 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1623 /* Return true if there's a program/permanent breakpoint planted in
1624 memory at ADDRESS, return false otherwise. */
1626 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1627 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1628 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1630 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1631 Return 0 if *READPTR is already at the end of the buffer.
1632 Return -1 if there is insufficient buffer for a whole entry.
1633 Return 1 if an entry was read into *TYPEP and *VALP. */
1635 extern bool gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1637 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1638 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1639 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1641 /* Print the description of a single auxv entry described by TYPE and VAL
1644 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1645 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1646 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1648 /* Find the address range of the current inferior's vsyscall/vDSO, and
1649 write it to *RANGE. If the vsyscall's length can't be determined, a
1650 range with zero length is returned. Returns true if the vsyscall is
1651 found, false otherwise. */
1653 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1654 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1655 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1657 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1658 PROT has GDB_MMAP_PROT_* bitmask format.
1659 Throw an error if it is not possible. Returned address is always valid. */
1661 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1662 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1663 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1665 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1666 Print a warning if it is not possible. */
1668 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1669 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1670 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1672 /* Return string (caller has to use xfree for it) with options for GCC
1673 to produce code for this target, typically "-m64", "-m32" or "-m31".
1674 These options are put before CU's DW_AT_producer compilation options so that
1675 they can override it. */
1677 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1678 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1679 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1681 /* Return a regular expression that matches names used by this
1682 architecture in GNU configury triplets. The result is statically
1683 allocated and must not be freed. The default implementation simply
1684 returns the BFD architecture name, which is correct in nearly every
1687 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1688 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1689 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1691 /* Return the size in 8-bit bytes of an addressable memory unit on this
1692 architecture. This corresponds to the number of 8-bit bytes associated to
1693 each address in memory. */
1695 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1696 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1697 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1699 /* Functions for allowing a target to modify its disassembler options. */
1701 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1702 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1704 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1705 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1707 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1708 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1710 /* Type alignment override method. Return the architecture specific
1711 alignment required for TYPE. If there is no special handling
1712 required for TYPE then return the value 0, GDB will then apply the
1713 default rules as laid out in gdbtypes.c:type_align. */
1715 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1716 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1717 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1719 /* Return a string containing any flags for the given PC in the given FRAME. */
1721 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1722 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1723 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1725 /* Read core file mappings */
1727 typedef void (gdbarch_read_core_file_mappings_ftype
) (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, read_core_file_mappings_pre_loop_ftype pre_loop_cb
, read_core_file_mappings_loop_ftype loop_cb
);
1728 extern void gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, read_core_file_mappings_pre_loop_ftype pre_loop_cb
, read_core_file_mappings_loop_ftype loop_cb
);
1729 extern void set_gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, gdbarch_read_core_file_mappings_ftype
*read_core_file_mappings
);
1731 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1734 /* Mechanism for co-ordinating the selection of a specific
1737 GDB targets (*-tdep.c) can register an interest in a specific
1738 architecture. Other GDB components can register a need to maintain
1739 per-architecture data.
1741 The mechanisms below ensures that there is only a loose connection
1742 between the set-architecture command and the various GDB
1743 components. Each component can independently register their need
1744 to maintain architecture specific data with gdbarch.
1748 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1751 The more traditional mega-struct containing architecture specific
1752 data for all the various GDB components was also considered. Since
1753 GDB is built from a variable number of (fairly independent)
1754 components it was determined that the global aproach was not
1758 /* Register a new architectural family with GDB.
1760 Register support for the specified ARCHITECTURE with GDB. When
1761 gdbarch determines that the specified architecture has been
1762 selected, the corresponding INIT function is called.
1766 The INIT function takes two parameters: INFO which contains the
1767 information available to gdbarch about the (possibly new)
1768 architecture; ARCHES which is a list of the previously created
1769 ``struct gdbarch'' for this architecture.
1771 The INFO parameter is, as far as possible, be pre-initialized with
1772 information obtained from INFO.ABFD or the global defaults.
1774 The ARCHES parameter is a linked list (sorted most recently used)
1775 of all the previously created architures for this architecture
1776 family. The (possibly NULL) ARCHES->gdbarch can used to access
1777 values from the previously selected architecture for this
1778 architecture family.
1780 The INIT function shall return any of: NULL - indicating that it
1781 doesn't recognize the selected architecture; an existing ``struct
1782 gdbarch'' from the ARCHES list - indicating that the new
1783 architecture is just a synonym for an earlier architecture (see
1784 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1785 - that describes the selected architecture (see gdbarch_alloc()).
1787 The DUMP_TDEP function shall print out all target specific values.
1788 Care should be taken to ensure that the function works in both the
1789 multi-arch and non- multi-arch cases. */
1793 struct gdbarch
*gdbarch
;
1794 struct gdbarch_list
*next
;
1800 /* Ensure the union is zero-initialized. Relies on the fact that there's
1801 no member larger than TDESC_DATA. */
1805 const struct bfd_arch_info
*bfd_arch_info
= nullptr;
1807 enum bfd_endian byte_order
= BFD_ENDIAN_UNKNOWN
;
1809 enum bfd_endian byte_order_for_code
= BFD_ENDIAN_UNKNOWN
;
1811 bfd
*abfd
= nullptr;
1815 /* Architecture-specific target description data. Numerous targets
1816 need only this, so give them an easy way to hold it. */
1817 struct tdesc_arch_data
*tdesc_data
;
1819 /* SPU file system ID. This is a single integer, so using the
1820 generic form would only complicate code. Other targets may
1821 reuse this member if suitable. */
1825 enum gdb_osabi osabi
= GDB_OSABI_UNKNOWN
;
1827 const struct target_desc
*target_desc
= nullptr;
1830 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1831 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1833 /* DEPRECATED - use gdbarch_register() */
1834 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1836 extern void gdbarch_register (enum bfd_architecture architecture
,
1837 gdbarch_init_ftype
*,
1838 gdbarch_dump_tdep_ftype
*);
1841 /* Return a vector of the valid architecture names. Since architectures are
1842 registered during the _initialize phase this function only returns useful
1843 information once initialization has been completed. */
1845 extern std::vector
<const char *> gdbarch_printable_names ();
1848 /* Helper function. Search the list of ARCHES for a GDBARCH that
1849 matches the information provided by INFO. */
1851 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1854 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1855 basic initialization using values obtained from the INFO and TDEP
1856 parameters. set_gdbarch_*() functions are called to complete the
1857 initialization of the object. */
1859 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1862 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1863 It is assumed that the caller freeds the ``struct
1866 extern void gdbarch_free (struct gdbarch
*);
1868 /* Get the obstack owned by ARCH. */
1870 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1872 /* Helper function. Allocate memory from the ``struct gdbarch''
1873 obstack. The memory is freed when the corresponding architecture
1876 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1878 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1880 /* Duplicate STRING, returning an equivalent string that's allocated on the
1881 obstack associated with GDBARCH. The string is freed when the corresponding
1882 architecture is also freed. */
1884 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1886 /* Helper function. Force an update of the current architecture.
1888 The actual architecture selected is determined by INFO, ``(gdb) set
1889 architecture'' et.al., the existing architecture and BFD's default
1890 architecture. INFO should be initialized to zero and then selected
1891 fields should be updated.
1893 Returns non-zero if the update succeeds. */
1895 extern int gdbarch_update_p (struct gdbarch_info info
);
1898 /* Helper function. Find an architecture matching info.
1900 INFO should have relevant fields set, and then finished using
1903 Returns the corresponding architecture, or NULL if no matching
1904 architecture was found. */
1906 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1909 /* Helper function. Set the target gdbarch to "gdbarch". */
1911 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1914 /* Register per-architecture data-pointer.
1916 Reserve space for a per-architecture data-pointer. An identifier
1917 for the reserved data-pointer is returned. That identifer should
1918 be saved in a local static variable.
1920 Memory for the per-architecture data shall be allocated using
1921 gdbarch_obstack_zalloc. That memory will be deleted when the
1922 corresponding architecture object is deleted.
1924 When a previously created architecture is re-selected, the
1925 per-architecture data-pointer for that previous architecture is
1926 restored. INIT() is not re-called.
1928 Multiple registrarants for any architecture are allowed (and
1929 strongly encouraged). */
1931 struct gdbarch_data
;
1933 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1934 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1935 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1936 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1938 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1941 /* Set the dynamic target-system-dependent parameters (architecture,
1942 byte-order, ...) using information found in the BFD. */
1944 extern void set_gdbarch_from_file (bfd
*);
1947 /* Initialize the current architecture to the "first" one we find on
1950 extern void initialize_current_architecture (void);
1952 /* gdbarch trace variable */
1953 extern unsigned int gdbarch_debug
;
1955 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1957 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1960 gdbarch_num_cooked_regs (gdbarch
*arch
)
1962 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);