1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2020 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
;
64 /* The architecture associated with the inferior through the
65 connection to the target.
67 The architecture vector provides some information that is really a
68 property of the inferior, accessed through a particular target:
69 ptrace operations; the layout of certain RSP packets; the solib_ops
70 vector; etc. To differentiate architecture accesses to
71 per-inferior/target properties from
72 per-thread/per-frame/per-objfile properties, accesses to
73 per-inferior/target properties should be made through this
76 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
77 extern struct gdbarch
*target_gdbarch (void);
79 /* Callback type for the 'iterate_over_objfiles_in_search_order'
82 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
83 (struct objfile
*objfile
, void *cb_data
);
85 /* Callback type for regset section iterators. The callback usually
86 invokes the REGSET's supply or collect method, to which it must
87 pass a buffer - for collects this buffer will need to be created using
88 COLLECT_SIZE, for supply the existing buffer being read from should
89 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
90 is used for diagnostic messages. CB_DATA should have been passed
91 unchanged through the iterator. */
93 typedef void (iterate_over_regset_sections_cb
)
94 (const char *sect_name
, int supply_size
, int collect_size
,
95 const struct regset
*regset
, const char *human_name
, void *cb_data
);
97 /* For a function call, does the function return a value using a
98 normal value return or a structure return - passing a hidden
99 argument pointing to storage. For the latter, there are two
100 cases: language-mandated structure return and target ABI
103 enum function_call_return_method
105 /* Standard value return. */
106 return_method_normal
= 0,
108 /* Language ABI structure return. This is handled
109 by passing the return location as the first parameter to
110 the function, even preceding "this". */
111 return_method_hidden_param
,
113 /* Target ABI struct return. This is target-specific; for instance,
114 on ia64 the first argument is passed in out0 but the hidden
115 structure return pointer would normally be passed in r8. */
116 return_method_struct
,
121 /* The following are pre-initialized by GDBARCH. */
123 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
124 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
126 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
127 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
129 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
130 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
132 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
133 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
135 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
136 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
139 /* The following are initialized by the target dependent code. */
141 /* Number of bits in a short or unsigned short for the target machine. */
143 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
144 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
146 /* Number of bits in an int or unsigned int for the target machine. */
148 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
149 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
151 /* Number of bits in a long or unsigned long for the target machine. */
153 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
154 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
156 /* Number of bits in a long long or unsigned long long for the target
159 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
160 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
162 /* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and
163 "long double". These bit/format pairs should eventually be combined
164 into a single object. For the moment, just initialize them as a pair.
165 Each format describes both the big and little endian layouts (if
168 extern int gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
);
169 extern void set_gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
, int bfloat16_bit
);
171 extern const struct floatformat
** gdbarch_bfloat16_format (struct gdbarch
*gdbarch
);
172 extern void set_gdbarch_bfloat16_format (struct gdbarch
*gdbarch
, const struct floatformat
** bfloat16_format
);
174 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
175 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
177 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
178 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
180 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
181 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
183 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
184 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
186 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
189 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
190 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
192 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
193 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
195 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
198 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
199 starting with C++11. */
201 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
202 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
204 /* One if `wchar_t' is signed, zero if unsigned. */
206 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
207 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
209 /* Returns the floating-point format to be used for values of length LENGTH.
210 NAME, if non-NULL, is the type name, which may be used to distinguish
211 different target formats of the same length. */
213 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
214 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
215 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
217 /* For most targets, a pointer on the target and its representation as an
218 address in GDB have the same size and "look the same". For such a
219 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
220 / addr_bit will be set from it.
222 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
223 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
224 gdbarch_address_to_pointer as well.
226 ptr_bit is the size of a pointer on the target */
228 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
229 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
231 /* addr_bit is the size of a target address as represented in gdb */
233 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
234 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
236 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
237 info. For .debug_frame FDEs, this is supposed to be the target address
238 size from the associated CU header, and which is equivalent to the
239 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
240 Unfortunately there is no good way to determine this value. Therefore
241 dwarf2_addr_size simply defaults to the target pointer size.
243 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
244 defined using the target's pointer size so far.
246 Note that dwarf2_addr_size only needs to be redefined by a target if the
247 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
248 and if Dwarf versions < 4 need to be supported. */
250 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
251 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
253 /* One if `char' acts like `signed char', zero if `unsigned char'. */
255 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
256 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
258 extern bool gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
260 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
261 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
262 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
264 extern bool gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
266 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
267 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
268 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
270 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
271 whole scheme for dealing with "frames" and "frame pointers" needs a
272 serious shakedown. */
274 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
275 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
276 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
278 extern bool gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
280 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
281 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
282 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
284 /* Read a register into a new struct value. If the register is wholly
285 or partly unavailable, this should call mark_value_bytes_unavailable
286 as appropriate. If this is defined, then pseudo_register_read will
289 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
291 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
292 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
293 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
295 extern bool gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
297 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
298 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
299 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
301 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
302 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
304 /* This macro gives the number of pseudo-registers that live in the
305 register namespace but do not get fetched or stored on the target.
306 These pseudo-registers may be aliases for other registers,
307 combinations of other registers, or they may be computed by GDB. */
309 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
310 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
312 /* Assemble agent expression bytecode to collect pseudo-register REG.
313 Return -1 if something goes wrong, 0 otherwise. */
315 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
317 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
318 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
319 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
321 /* Assemble agent expression bytecode to push the value of pseudo-register
322 REG on the interpreter stack.
323 Return -1 if something goes wrong, 0 otherwise. */
325 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
327 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
328 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
329 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
331 /* Some architectures can display additional information for specific
333 UIOUT is the output stream where the handler will place information. */
335 extern bool gdbarch_report_signal_info_p (struct gdbarch
*gdbarch
);
337 typedef void (gdbarch_report_signal_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
338 extern void gdbarch_report_signal_info (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
339 extern void set_gdbarch_report_signal_info (struct gdbarch
*gdbarch
, gdbarch_report_signal_info_ftype
*report_signal_info
);
341 /* GDB's standard (or well known) register numbers. These can map onto
342 a real register or a pseudo (computed) register or not be defined at
344 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
346 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
347 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
349 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
350 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
352 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
353 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
355 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
356 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
358 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
360 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
361 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
362 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
364 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
366 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
367 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
368 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
370 /* Convert from an sdb register number to an internal gdb register number. */
372 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
373 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
374 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
376 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
377 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
379 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
380 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
381 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
383 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
384 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
385 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
387 /* Return the type of a register specified by the architecture. Only
388 the register cache should call this function directly; others should
389 use "register_type". */
391 extern bool gdbarch_register_type_p (struct gdbarch
*gdbarch
);
393 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
394 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
395 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
397 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
398 a dummy frame. A dummy frame is created before an inferior call,
399 the frame_id returned here must match the frame_id that was built
400 for the inferior call. Usually this means the returned frame_id's
401 stack address should match the address returned by
402 gdbarch_push_dummy_call, and the returned frame_id's code address
403 should match the address at which the breakpoint was set in the dummy
406 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
407 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
408 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
410 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
411 deprecated_fp_regnum. */
413 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
414 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
416 extern bool gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
418 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
);
419 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
);
420 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
422 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
423 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
425 extern bool gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
427 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
);
428 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
);
429 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
431 /* Return true if the code of FRAME is writable. */
433 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
434 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
435 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
437 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
438 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
439 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
441 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
442 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
443 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
445 extern bool gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
447 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
448 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
449 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
451 /* MAP a GDB RAW register number onto a simulator register number. See
452 also include/...-sim.h. */
454 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
455 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
456 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
458 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
459 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
460 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
462 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
463 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
464 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
466 /* Determine the address where a longjmp will land and save this address
467 in PC. Return nonzero on success.
469 FRAME corresponds to the longjmp frame. */
471 extern bool gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
473 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
474 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
475 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
477 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
478 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
480 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
481 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
482 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
484 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
485 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
);
486 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
488 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
489 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
490 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
492 /* Construct a value representing the contents of register REGNUM in
493 frame FRAME_ID, interpreted as type TYPE. The routine needs to
494 allocate and return a struct value with all value attributes
495 (but not the value contents) filled in. */
497 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
498 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
499 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
501 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
502 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
503 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
505 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
506 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
507 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
509 extern bool gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
511 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
512 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
513 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
515 /* Return the return-value convention that will be used by FUNCTION
516 to return a value of type VALTYPE. FUNCTION may be NULL in which
517 case the return convention is computed based only on VALTYPE.
519 If READBUF is not NULL, extract the return value and save it in this buffer.
521 If WRITEBUF is not NULL, it contains a return value which will be
522 stored into the appropriate register. This can be used when we want
523 to force the value returned by a function (see the "return" command
526 extern bool gdbarch_return_value_p (struct gdbarch
*gdbarch
);
528 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
);
529 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
);
530 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
532 /* Return true if the return value of function is stored in the first hidden
533 parameter. In theory, this feature should be language-dependent, specified
534 by language and its ABI, such as C++. Unfortunately, compiler may
535 implement it to a target-dependent feature. So that we need such hook here
536 to be aware of this in GDB. */
538 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
539 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
540 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
);
542 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
543 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
544 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
546 extern bool gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
548 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
549 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
550 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
552 /* On some platforms, a single function may provide multiple entry points,
553 e.g. one that is used for function-pointer calls and a different one
554 that is used for direct function calls.
555 In order to ensure that breakpoints set on the function will trigger
556 no matter via which entry point the function is entered, a platform
557 may provide the skip_entrypoint callback. It is called with IP set
558 to the main entry point of a function (as determined by the symbol table),
559 and should return the address of the innermost entry point, where the
560 actual breakpoint needs to be set. Note that skip_entrypoint is used
561 by GDB common code even when debugging optimized code, where skip_prologue
564 extern bool gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
566 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
567 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
568 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
570 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
571 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
572 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
574 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
575 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
576 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
578 /* Return the breakpoint kind for this target based on *PCPTR. */
580 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
581 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
582 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
584 /* Return the software breakpoint from KIND. KIND can have target
585 specific meaning like the Z0 kind parameter.
586 SIZE is set to the software breakpoint's length in memory. */
588 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
589 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
590 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
592 /* Return the breakpoint kind for this target based on the current
593 processor state (e.g. the current instruction mode on ARM) and the
594 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
596 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
597 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
598 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
600 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
602 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
603 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
604 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
606 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
607 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
608 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
610 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
611 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
612 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
614 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
615 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
617 /* A function can be addressed by either it's "pointer" (possibly a
618 descriptor address) or "entry point" (first executable instruction).
619 The method "convert_from_func_ptr_addr" converting the former to the
620 latter. gdbarch_deprecated_function_start_offset is being used to implement
621 a simplified subset of that functionality - the function's address
622 corresponds to the "function pointer" and the function's start
623 corresponds to the "function entry point" - and hence is redundant. */
625 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
626 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
628 /* Return the remote protocol register number associated with this
629 register. Normally the identity mapping. */
631 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
632 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
633 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
635 /* Fetch the target specific address used to represent a load module. */
637 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
639 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
640 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
641 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
643 /* Return the thread-local address at OFFSET in the thread-local
644 storage for the thread PTID and the shared library or executable
645 file given by LM_ADDR. If that block of thread-local storage hasn't
646 been allocated yet, this function may throw an error. LM_ADDR may
647 be zero for statically linked multithreaded inferiors. */
649 extern bool gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
651 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
652 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
653 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
655 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
656 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
658 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
659 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
660 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
662 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
663 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
664 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
666 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
667 frame-base. Enable frame-base before frame-unwind. */
669 extern bool gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
671 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
672 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
673 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
675 extern bool gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
677 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
678 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
679 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
681 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
682 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
683 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
685 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
686 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
688 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
689 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
690 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
692 /* On some machines there are bits in addresses which are not really
693 part of the address, but are used by the kernel, the hardware, etc.
694 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
695 we get a "real" address such as one would find in a symbol table.
696 This is used only for addresses of instructions, and even then I'm
697 not sure it's used in all contexts. It exists to deal with there
698 being a few stray bits in the PC which would mislead us, not as some
699 sort of generic thing to handle alignment or segmentation (it's
700 possible it should be in TARGET_READ_PC instead). */
702 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
703 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
704 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
706 /* On some machines, not all bits of an address word are significant.
707 For example, on AArch64, the top bits of an address known as the "tag"
708 are ignored by the kernel, the hardware, etc. and can be regarded as
709 additional data associated with the address. */
711 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
712 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
714 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
715 indicates if the target needs software single step. An ISA method to
718 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
719 target can single step. If not, then implement single step using breakpoints.
721 Return a vector of addresses on which the software single step
722 breakpoints should be inserted. NULL means software single step is
724 Multiple breakpoints may be inserted for some instructions such as
725 conditional branch. However, each implementation must always evaluate
726 the condition and only put the breakpoint at the branch destination if
727 the condition is true, so that we ensure forward progress when stepping
728 past a conditional branch to self. */
730 extern bool gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
732 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
733 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
734 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
736 /* Return non-zero if the processor is executing a delay slot and a
737 further single-step is needed before the instruction finishes. */
739 extern bool gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
741 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
742 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
743 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
745 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
746 disassembler. Perhaps objdump can handle it? */
748 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
749 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
750 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
752 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
753 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
754 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
756 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
757 evaluates non-zero, this is the address where the debugger will place
758 a step-resume breakpoint to get us past the dynamic linker. */
760 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
761 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
762 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
764 /* Some systems also have trampoline code for returning from shared libs. */
766 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
767 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
768 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
770 /* Return true if PC lies inside an indirect branch thunk. */
772 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
773 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
774 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
776 /* A target might have problems with watchpoints as soon as the stack
777 frame of the current function has been destroyed. This mostly happens
778 as the first action in a function's epilogue. stack_frame_destroyed_p()
779 is defined to return a non-zero value if either the given addr is one
780 instruction after the stack destroying instruction up to the trailing
781 return instruction or if we can figure out that the stack frame has
782 already been invalidated regardless of the value of addr. Targets
783 which don't suffer from that problem could just let this functionality
786 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
787 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
788 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
790 /* Process an ELF symbol in the minimal symbol table in a backend-specific
791 way. Normally this hook is supposed to do nothing, however if required,
792 then this hook can be used to apply tranformations to symbols that are
793 considered special in some way. For example the MIPS backend uses it
794 to interpret `st_other' information to mark compressed code symbols so
795 that they can be treated in the appropriate manner in the processing of
796 the main symbol table and DWARF-2 records. */
798 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
800 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
801 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
802 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
804 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
805 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
806 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
808 /* Process a symbol in the main symbol table in a backend-specific way.
809 Normally this hook is supposed to do nothing, however if required,
810 then this hook can be used to apply tranformations to symbols that
811 are considered special in some way. This is currently used by the
812 MIPS backend to make sure compressed code symbols have the ISA bit
813 set. This in turn is needed for symbol values seen in GDB to match
814 the values used at the runtime by the program itself, for function
815 and label references. */
817 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
818 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
819 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
821 /* Adjust the address retrieved from a DWARF-2 record other than a line
822 entry in a backend-specific way. Normally this hook is supposed to
823 return the address passed unchanged, however if that is incorrect for
824 any reason, then this hook can be used to fix the address up in the
825 required manner. This is currently used by the MIPS backend to make
826 sure addresses in FDE, range records, etc. referring to compressed
827 code have the ISA bit set, matching line information and the symbol
830 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
831 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
832 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
834 /* Adjust the address updated by a line entry in a backend-specific way.
835 Normally this hook is supposed to return the address passed unchanged,
836 however in the case of inconsistencies in these records, this hook can
837 be used to fix them up in the required manner. This is currently used
838 by the MIPS backend to make sure all line addresses in compressed code
839 are presented with the ISA bit set, which is not always the case. This
840 in turn ensures breakpoint addresses are correctly matched against the
843 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
844 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
845 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
847 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
848 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
850 /* See comment in target.h about continuable, steppable and
851 non-steppable watchpoints. */
853 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
854 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
856 extern bool gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
858 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
859 extern type_instance_flags
gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
860 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
862 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
864 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
865 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
866 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
);
868 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
869 FS are passed from the generic execute_cfa_program function. */
871 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
872 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
873 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
875 /* Return the appropriate type_flags for the supplied address class.
876 This function should return true if the address class was recognized and
877 type_flags was set, false otherwise. */
879 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
881 typedef bool (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
882 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
883 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
);
885 /* Is a register in a group */
887 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
888 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
889 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
891 /* Fetch the pointer to the ith function argument. */
893 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
895 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
896 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
897 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
899 /* Iterate over all supported register notes in a core file. For each
900 supported register note section, the iterator must call CB and pass
901 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
902 the supported register note sections based on the current register
903 values. Otherwise it should enumerate all supported register note
906 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
908 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
909 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
910 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
912 /* Create core file notes */
914 extern bool gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
916 typedef gdb::unique_xmalloc_ptr
<char> (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
917 extern gdb::unique_xmalloc_ptr
<char> gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
918 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
920 /* Find core file memory regions */
922 extern bool gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
924 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
925 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
926 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
928 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
929 core file into buffer READBUF with length LEN. Return the number of bytes read
930 (zero indicates failure).
931 failed, otherwise, return the red length of READBUF. */
933 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
935 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
936 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
937 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
939 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
940 libraries list from core file into buffer READBUF with length LEN.
941 Return the number of bytes read (zero indicates failure). */
943 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
945 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
946 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
947 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
949 /* How the core target converts a PTID from a core file to a string. */
951 extern bool gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
953 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
954 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
955 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
957 /* How the core target extracts the name of a thread from a core file. */
959 extern bool gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
961 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
962 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
963 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
965 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
966 from core file into buffer READBUF with length LEN. Return the number
967 of bytes read (zero indicates EOF, a negative value indicates failure). */
969 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
971 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
972 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
973 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
975 /* BFD target to use when generating a core file. */
977 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
979 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
980 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
982 /* If the elements of C++ vtables are in-place function descriptors rather
983 than normal function pointers (which may point to code or a descriptor),
986 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
987 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
989 /* Set if the least significant bit of the delta is used instead of the least
990 significant bit of the pfn for pointers to virtual member functions. */
992 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
993 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
995 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
997 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
998 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
999 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
1001 /* The maximum length of an instruction on this architecture in bytes. */
1003 extern bool gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1005 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1006 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1008 /* Copy the instruction at FROM to TO, and make any adjustments
1009 necessary to single-step it at that address.
1011 REGS holds the state the thread's registers will have before
1012 executing the copied instruction; the PC in REGS will refer to FROM,
1013 not the copy at TO. The caller should update it to point at TO later.
1015 Return a pointer to data of the architecture's choice to be passed
1016 to gdbarch_displaced_step_fixup.
1018 For a general explanation of displaced stepping and how GDB uses it,
1019 see the comments in infrun.c.
1021 The TO area is only guaranteed to have space for
1022 gdbarch_max_insn_length (arch) bytes, so this function must not
1023 write more bytes than that to that area.
1025 If you do not provide this function, GDB assumes that the
1026 architecture does not support displaced stepping.
1028 If the instruction cannot execute out of line, return NULL. The
1029 core falls back to stepping past the instruction in-line instead in
1032 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1034 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
);
1035 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1036 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1038 /* Return true if GDB should use hardware single-stepping to execute a displaced
1039 step instruction. If false, GDB will simply restart execution at the
1040 displaced instruction location, and it is up to the target to ensure GDB will
1041 receive control again (e.g. by placing a software breakpoint instruction into
1042 the displaced instruction buffer).
1044 The default implementation returns false on all targets that provide a
1045 gdbarch_software_single_step routine, and true otherwise. */
1047 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
);
1048 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
);
1049 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1051 /* Fix up the state resulting from successfully single-stepping a
1052 displaced instruction, to give the result we would have gotten from
1053 stepping the instruction in its original location.
1055 REGS is the register state resulting from single-stepping the
1056 displaced instruction.
1058 CLOSURE is the result from the matching call to
1059 gdbarch_displaced_step_copy_insn.
1061 If you provide gdbarch_displaced_step_copy_insn.but not this
1062 function, then GDB assumes that no fixup is needed after
1063 single-stepping the instruction.
1065 For a general explanation of displaced stepping and how GDB uses it,
1066 see the comments in infrun.c. */
1068 extern bool gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1070 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
);
1071 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
);
1072 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1074 /* Return the address of an appropriate place to put displaced
1075 instructions while we step over them. There need only be one such
1076 place, since we're only stepping one thread over a breakpoint at a
1079 For a general explanation of displaced stepping and how GDB uses it,
1080 see the comments in infrun.c. */
1082 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
1083 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
1084 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1086 /* Relocate an instruction to execute at a different address. OLDLOC
1087 is the address in the inferior memory where the instruction to
1088 relocate is currently at. On input, TO points to the destination
1089 where we want the instruction to be copied (and possibly adjusted)
1090 to. On output, it points to one past the end of the resulting
1091 instruction(s). The effect of executing the instruction at TO shall
1092 be the same as if executing it at FROM. For example, call
1093 instructions that implicitly push the return address on the stack
1094 should be adjusted to return to the instruction after OLDLOC;
1095 relative branches, and other PC-relative instructions need the
1096 offset adjusted; etc. */
1098 extern bool gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1100 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1101 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1102 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1104 /* Refresh overlay mapped state for section OSECT. */
1106 extern bool gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1108 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1109 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1110 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1112 extern bool gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1114 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1115 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1116 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1118 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1120 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1121 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1123 /* Parse the instruction at ADDR storing in the record execution log
1124 the registers REGCACHE and memory ranges that will be affected when
1125 the instruction executes, along with their current values.
1126 Return -1 if something goes wrong, 0 otherwise. */
1128 extern bool gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1130 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1131 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1132 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1134 /* Save process state after a signal.
1135 Return -1 if something goes wrong, 0 otherwise. */
1137 extern bool gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1139 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1140 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1141 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1143 /* Signal translation: translate inferior's signal (target's) number
1144 into GDB's representation. The implementation of this method must
1145 be host independent. IOW, don't rely on symbols of the NAT_FILE
1146 header (the nm-*.h files), the host <signal.h> header, or similar
1147 headers. This is mainly used when cross-debugging core files ---
1148 "Live" targets hide the translation behind the target interface
1149 (target_wait, target_resume, etc.). */
1151 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1153 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1154 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1155 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1157 /* Signal translation: translate the GDB's internal signal number into
1158 the inferior's signal (target's) representation. The implementation
1159 of this method must be host independent. IOW, don't rely on symbols
1160 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1161 header, or similar headers.
1162 Return the target signal number if found, or -1 if the GDB internal
1163 signal number is invalid. */
1165 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1167 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1168 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1169 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1171 /* Extra signal info inspection.
1173 Return a type suitable to inspect extra signal information. */
1175 extern bool gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1177 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1178 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1179 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1181 /* Record architecture-specific information from the symbol table. */
1183 extern bool gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1185 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1186 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1187 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1189 /* Function for the 'catch syscall' feature.
1190 Get architecture-specific system calls information from registers. */
1192 extern bool gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1194 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1195 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1196 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1198 /* The filename of the XML syscall for this architecture. */
1200 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1201 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1203 /* Information about system calls from this architecture */
1205 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1206 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1208 /* SystemTap related fields and functions.
1209 A NULL-terminated array of prefixes used to mark an integer constant
1210 on the architecture's assembly.
1211 For example, on x86 integer constants are written as:
1213 $10 ;; integer constant 10
1215 in this case, this prefix would be the character `$'. */
1217 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1218 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1220 /* A NULL-terminated array of suffixes used to mark an integer constant
1221 on the architecture's assembly. */
1223 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1224 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1226 /* A NULL-terminated array of prefixes used to mark a register name on
1227 the architecture's assembly.
1228 For example, on x86 the register name is written as:
1230 %eax ;; register eax
1232 in this case, this prefix would be the character `%'. */
1234 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1235 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1237 /* A NULL-terminated array of suffixes used to mark a register name on
1238 the architecture's assembly. */
1240 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1241 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1243 /* A NULL-terminated array of prefixes used to mark a register
1244 indirection on the architecture's assembly.
1245 For example, on x86 the register indirection is written as:
1247 (%eax) ;; indirecting eax
1249 in this case, this prefix would be the charater `('.
1251 Please note that we use the indirection prefix also for register
1252 displacement, e.g., `4(%eax)' on x86. */
1254 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1255 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1257 /* A NULL-terminated array of suffixes used to mark a register
1258 indirection on the architecture's assembly.
1259 For example, on x86 the register indirection is written as:
1261 (%eax) ;; indirecting eax
1263 in this case, this prefix would be the charater `)'.
1265 Please note that we use the indirection suffix also for register
1266 displacement, e.g., `4(%eax)' on x86. */
1268 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1269 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1271 /* Prefix(es) used to name a register using GDB's nomenclature.
1273 For example, on PPC a register is represented by a number in the assembly
1274 language (e.g., `10' is the 10th general-purpose register). However,
1275 inside GDB this same register has an `r' appended to its name, so the 10th
1276 register would be represented as `r10' internally. */
1278 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1279 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1281 /* Suffix used to name a register using GDB's nomenclature. */
1283 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1284 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1286 /* Check if S is a single operand.
1288 Single operands can be:
1289 - Literal integers, e.g. `$10' on x86
1290 - Register access, e.g. `%eax' on x86
1291 - Register indirection, e.g. `(%eax)' on x86
1292 - Register displacement, e.g. `4(%eax)' on x86
1294 This function should check for these patterns on the string
1295 and return 1 if some were found, or zero otherwise. Please try to match
1296 as much info as you can from the string, i.e., if you have to match
1297 something like `(%', do not match just the `('. */
1299 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1301 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1302 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1303 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1305 /* Function used to handle a "special case" in the parser.
1307 A "special case" is considered to be an unknown token, i.e., a token
1308 that the parser does not know how to parse. A good example of special
1309 case would be ARM's register displacement syntax:
1311 [R0, #4] ;; displacing R0 by 4
1313 Since the parser assumes that a register displacement is of the form:
1315 <number> <indirection_prefix> <register_name> <indirection_suffix>
1317 it means that it will not be able to recognize and parse this odd syntax.
1318 Therefore, we should add a special case function that will handle this token.
1320 This function should generate the proper expression form of the expression
1321 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1322 and so on). It should also return 1 if the parsing was successful, or zero
1323 if the token was not recognized as a special token (in this case, returning
1324 zero means that the special parser is deferring the parsing to the generic
1325 parser), and should advance the buffer pointer (p->arg). */
1327 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1329 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1330 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1331 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1333 /* Perform arch-dependent adjustments to a register name.
1335 In very specific situations, it may be necessary for the register
1336 name present in a SystemTap probe's argument to be handled in a
1337 special way. For example, on i386, GCC may over-optimize the
1338 register allocation and use smaller registers than necessary. In
1339 such cases, the client that is reading and evaluating the SystemTap
1340 probe (ourselves) will need to actually fetch values from the wider
1341 version of the register in question.
1343 To illustrate the example, consider the following probe argument
1348 This argument says that its value can be found at the %ax register,
1349 which is a 16-bit register. However, the argument's prefix says
1350 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1351 this case, GDB should actually fetch the probe's value from register
1352 %eax, not %ax. In this scenario, this function would actually
1353 replace the register name from %ax to %eax.
1355 The rationale for this can be found at PR breakpoints/24541. */
1357 extern bool gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1359 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1360 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1361 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1363 /* DTrace related functions.
1364 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1365 NARG must be >= 0. */
1367 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1369 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1370 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1371 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1373 /* True if the given ADDR does not contain the instruction sequence
1374 corresponding to a disabled DTrace is-enabled probe. */
1376 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1378 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1379 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1380 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1382 /* Enable a DTrace is-enabled probe at ADDR. */
1384 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1386 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1387 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1388 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1390 /* Disable a DTrace is-enabled probe at ADDR. */
1392 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1394 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1395 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1396 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1398 /* True if the list of shared libraries is one and only for all
1399 processes, as opposed to a list of shared libraries per inferior.
1400 This usually means that all processes, although may or may not share
1401 an address space, will see the same set of symbols at the same
1404 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1405 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1407 /* On some targets, even though each inferior has its own private
1408 address space, the debug interface takes care of making breakpoints
1409 visible to all address spaces automatically. For such cases,
1410 this property should be set to true. */
1412 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1413 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1415 /* True if inferiors share an address space (e.g., uClinux). */
1417 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1418 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1419 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1421 /* True if a fast tracepoint can be set at an address. */
1423 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1424 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1425 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1427 /* Guess register state based on tracepoint location. Used for tracepoints
1428 where no registers have been collected, but there's only one location,
1429 allowing us to guess the PC value, and perhaps some other registers.
1430 On entry, regcache has all registers marked as unavailable. */
1432 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1433 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1434 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1436 /* Return the "auto" target charset. */
1438 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1439 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1440 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1442 /* Return the "auto" target wide charset. */
1444 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1445 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1446 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1448 /* If non-empty, this is a file extension that will be opened in place
1449 of the file extension reported by the shared library list.
1451 This is most useful for toolchains that use a post-linker tool,
1452 where the names of the files run on the target differ in extension
1453 compared to the names of the files GDB should load for debug info. */
1455 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1456 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1458 /* If true, the target OS has DOS-based file system semantics. That
1459 is, absolute paths include a drive name, and the backslash is
1460 considered a directory separator. */
1462 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1463 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1465 /* Generate bytecodes to collect the return address in a frame.
1466 Since the bytecodes run on the target, possibly with GDB not even
1467 connected, the full unwinding machinery is not available, and
1468 typically this function will issue bytecodes for one or more likely
1469 places that the return address may be found. */
1471 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1472 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1473 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1475 /* Implement the "info proc" command. */
1477 extern bool gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1479 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1480 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1481 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1483 /* Implement the "info proc" command for core files. Noe that there
1484 are two "info_proc"-like methods on gdbarch -- one for core files,
1485 one for live targets. */
1487 extern bool gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1489 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1490 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1491 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1493 /* Iterate over all objfiles in the order that makes the most sense
1494 for the architecture to make global symbol searches.
1496 CB is a callback function where OBJFILE is the objfile to be searched,
1497 and CB_DATA a pointer to user-defined data (the same data that is passed
1498 when calling this gdbarch method). The iteration stops if this function
1501 CB_DATA is a pointer to some user-defined data to be passed to
1504 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1505 inspected when the symbol search was requested. */
1507 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
);
1508 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
);
1509 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
);
1511 /* Ravenscar arch-dependent ops. */
1513 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1514 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1516 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1518 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1519 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1520 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1522 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1524 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1525 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1526 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1528 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1530 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1531 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1532 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1534 /* Return true if there's a program/permanent breakpoint planted in
1535 memory at ADDRESS, return false otherwise. */
1537 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1538 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1539 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1541 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1542 Return 0 if *READPTR is already at the end of the buffer.
1543 Return -1 if there is insufficient buffer for a whole entry.
1544 Return 1 if an entry was read into *TYPEP and *VALP. */
1546 extern bool gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1548 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1549 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1550 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1552 /* Print the description of a single auxv entry described by TYPE and VAL
1555 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1556 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1557 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1559 /* Find the address range of the current inferior's vsyscall/vDSO, and
1560 write it to *RANGE. If the vsyscall's length can't be determined, a
1561 range with zero length is returned. Returns true if the vsyscall is
1562 found, false otherwise. */
1564 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1565 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1566 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1568 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1569 PROT has GDB_MMAP_PROT_* bitmask format.
1570 Throw an error if it is not possible. Returned address is always valid. */
1572 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1573 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1574 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1576 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1577 Print a warning if it is not possible. */
1579 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1580 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1581 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1583 /* Return string (caller has to use xfree for it) with options for GCC
1584 to produce code for this target, typically "-m64", "-m32" or "-m31".
1585 These options are put before CU's DW_AT_producer compilation options so that
1586 they can override it. */
1588 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1589 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1590 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1592 /* Return a regular expression that matches names used by this
1593 architecture in GNU configury triplets. The result is statically
1594 allocated and must not be freed. The default implementation simply
1595 returns the BFD architecture name, which is correct in nearly every
1598 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1599 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1600 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1602 /* Return the size in 8-bit bytes of an addressable memory unit on this
1603 architecture. This corresponds to the number of 8-bit bytes associated to
1604 each address in memory. */
1606 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1607 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1608 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1610 /* Functions for allowing a target to modify its disassembler options. */
1612 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1613 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1615 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1616 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1618 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1619 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1621 /* Type alignment override method. Return the architecture specific
1622 alignment required for TYPE. If there is no special handling
1623 required for TYPE then return the value 0, GDB will then apply the
1624 default rules as laid out in gdbtypes.c:type_align. */
1626 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1627 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1628 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1630 /* Return a string containing any flags for the given PC in the given FRAME. */
1632 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1633 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1634 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1636 /* Read core file mappings */
1638 typedef void (gdbarch_read_core_file_mappings_ftype
) (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
, gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
)> loop_cb
);
1639 extern void gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
, gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
)> loop_cb
);
1640 extern void set_gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, gdbarch_read_core_file_mappings_ftype
*read_core_file_mappings
);
1642 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1645 /* Mechanism for co-ordinating the selection of a specific
1648 GDB targets (*-tdep.c) can register an interest in a specific
1649 architecture. Other GDB components can register a need to maintain
1650 per-architecture data.
1652 The mechanisms below ensures that there is only a loose connection
1653 between the set-architecture command and the various GDB
1654 components. Each component can independently register their need
1655 to maintain architecture specific data with gdbarch.
1659 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1662 The more traditional mega-struct containing architecture specific
1663 data for all the various GDB components was also considered. Since
1664 GDB is built from a variable number of (fairly independent)
1665 components it was determined that the global aproach was not
1669 /* Register a new architectural family with GDB.
1671 Register support for the specified ARCHITECTURE with GDB. When
1672 gdbarch determines that the specified architecture has been
1673 selected, the corresponding INIT function is called.
1677 The INIT function takes two parameters: INFO which contains the
1678 information available to gdbarch about the (possibly new)
1679 architecture; ARCHES which is a list of the previously created
1680 ``struct gdbarch'' for this architecture.
1682 The INFO parameter is, as far as possible, be pre-initialized with
1683 information obtained from INFO.ABFD or the global defaults.
1685 The ARCHES parameter is a linked list (sorted most recently used)
1686 of all the previously created architures for this architecture
1687 family. The (possibly NULL) ARCHES->gdbarch can used to access
1688 values from the previously selected architecture for this
1689 architecture family.
1691 The INIT function shall return any of: NULL - indicating that it
1692 doesn't recognize the selected architecture; an existing ``struct
1693 gdbarch'' from the ARCHES list - indicating that the new
1694 architecture is just a synonym for an earlier architecture (see
1695 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1696 - that describes the selected architecture (see gdbarch_alloc()).
1698 The DUMP_TDEP function shall print out all target specific values.
1699 Care should be taken to ensure that the function works in both the
1700 multi-arch and non- multi-arch cases. */
1704 struct gdbarch
*gdbarch
;
1705 struct gdbarch_list
*next
;
1710 /* Use default: NULL (ZERO). */
1711 const struct bfd_arch_info
*bfd_arch_info
;
1713 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1714 enum bfd_endian byte_order
;
1716 enum bfd_endian byte_order_for_code
;
1718 /* Use default: NULL (ZERO). */
1721 /* Use default: NULL (ZERO). */
1724 /* Architecture-specific information. The generic form for targets
1725 that have extra requirements. */
1726 struct gdbarch_tdep_info
*tdep_info
;
1728 /* Architecture-specific target description data. Numerous targets
1729 need only this, so give them an easy way to hold it. */
1730 struct tdesc_arch_data
*tdesc_data
;
1732 /* SPU file system ID. This is a single integer, so using the
1733 generic form would only complicate code. Other targets may
1734 reuse this member if suitable. */
1738 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1739 enum gdb_osabi osabi
;
1741 /* Use default: NULL (ZERO). */
1742 const struct target_desc
*target_desc
;
1745 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1746 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1748 /* DEPRECATED - use gdbarch_register() */
1749 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1751 extern void gdbarch_register (enum bfd_architecture architecture
,
1752 gdbarch_init_ftype
*,
1753 gdbarch_dump_tdep_ftype
*);
1756 /* Return a freshly allocated, NULL terminated, array of the valid
1757 architecture names. Since architectures are registered during the
1758 _initialize phase this function only returns useful information
1759 once initialization has been completed. */
1761 extern const char **gdbarch_printable_names (void);
1764 /* Helper function. Search the list of ARCHES for a GDBARCH that
1765 matches the information provided by INFO. */
1767 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1770 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1771 basic initialization using values obtained from the INFO and TDEP
1772 parameters. set_gdbarch_*() functions are called to complete the
1773 initialization of the object. */
1775 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1778 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1779 It is assumed that the caller freeds the ``struct
1782 extern void gdbarch_free (struct gdbarch
*);
1784 /* Get the obstack owned by ARCH. */
1786 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1788 /* Helper function. Allocate memory from the ``struct gdbarch''
1789 obstack. The memory is freed when the corresponding architecture
1792 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1794 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1796 /* Duplicate STRING, returning an equivalent string that's allocated on the
1797 obstack associated with GDBARCH. The string is freed when the corresponding
1798 architecture is also freed. */
1800 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1802 /* Helper function. Force an update of the current architecture.
1804 The actual architecture selected is determined by INFO, ``(gdb) set
1805 architecture'' et.al., the existing architecture and BFD's default
1806 architecture. INFO should be initialized to zero and then selected
1807 fields should be updated.
1809 Returns non-zero if the update succeeds. */
1811 extern int gdbarch_update_p (struct gdbarch_info info
);
1814 /* Helper function. Find an architecture matching info.
1816 INFO should be initialized using gdbarch_info_init, relevant fields
1817 set, and then finished using gdbarch_info_fill.
1819 Returns the corresponding architecture, or NULL if no matching
1820 architecture was found. */
1822 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1825 /* Helper function. Set the target gdbarch to "gdbarch". */
1827 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1830 /* Register per-architecture data-pointer.
1832 Reserve space for a per-architecture data-pointer. An identifier
1833 for the reserved data-pointer is returned. That identifer should
1834 be saved in a local static variable.
1836 Memory for the per-architecture data shall be allocated using
1837 gdbarch_obstack_zalloc. That memory will be deleted when the
1838 corresponding architecture object is deleted.
1840 When a previously created architecture is re-selected, the
1841 per-architecture data-pointer for that previous architecture is
1842 restored. INIT() is not re-called.
1844 Multiple registrarants for any architecture are allowed (and
1845 strongly encouraged). */
1847 struct gdbarch_data
;
1849 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1850 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1851 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1852 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1854 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1857 /* Set the dynamic target-system-dependent parameters (architecture,
1858 byte-order, ...) using information found in the BFD. */
1860 extern void set_gdbarch_from_file (bfd
*);
1863 /* Initialize the current architecture to the "first" one we find on
1866 extern void initialize_current_architecture (void);
1868 /* gdbarch trace variable */
1869 extern unsigned int gdbarch_debug
;
1871 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1873 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1876 gdbarch_num_cooked_regs (gdbarch
*arch
)
1878 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);