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 "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_half_bit (struct gdbarch
*gdbarch
);
169 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
171 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
172 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
174 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
175 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
177 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
178 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
180 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
181 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
183 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
184 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
186 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
189 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
190 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
192 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
193 starting with C++11. */
195 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
198 /* One if `wchar_t' is signed, zero if unsigned. */
200 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
201 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
203 /* Returns the floating-point format to be used for values of length LENGTH.
204 NAME, if non-NULL, is the type name, which may be used to distinguish
205 different target formats of the same length. */
207 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
208 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
209 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
211 /* For most targets, a pointer on the target and its representation as an
212 address in GDB have the same size and "look the same". For such a
213 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
214 / addr_bit will be set from it.
216 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
217 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
218 gdbarch_address_to_pointer as well.
220 ptr_bit is the size of a pointer on the target */
222 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
223 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
225 /* addr_bit is the size of a target address as represented in gdb */
227 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
228 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
230 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
231 info. For .debug_frame FDEs, this is supposed to be the target address
232 size from the associated CU header, and which is equivalent to the
233 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
234 Unfortunately there is no good way to determine this value. Therefore
235 dwarf2_addr_size simply defaults to the target pointer size.
237 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
238 defined using the target's pointer size so far.
240 Note that dwarf2_addr_size only needs to be redefined by a target if the
241 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
242 and if Dwarf versions < 4 need to be supported. */
244 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
245 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
247 /* One if `char' acts like `signed char', zero if `unsigned char'. */
249 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
250 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
252 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
254 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
255 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
256 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
258 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
260 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
261 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
262 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
264 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
265 whole scheme for dealing with "frames" and "frame pointers" needs a
266 serious shakedown. */
268 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
269 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
270 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
272 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
274 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
275 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
276 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
278 /* Read a register into a new struct value. If the register is wholly
279 or partly unavailable, this should call mark_value_bytes_unavailable
280 as appropriate. If this is defined, then pseudo_register_read will
283 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
285 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
286 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
287 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
289 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
291 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
292 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
293 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
295 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
296 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
298 /* This macro gives the number of pseudo-registers that live in the
299 register namespace but do not get fetched or stored on the target.
300 These pseudo-registers may be aliases for other registers,
301 combinations of other registers, or they may be computed by GDB. */
303 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
304 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
306 /* Assemble agent expression bytecode to collect pseudo-register REG.
307 Return -1 if something goes wrong, 0 otherwise. */
309 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
311 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
312 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
313 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
315 /* Assemble agent expression bytecode to push the value of pseudo-register
316 REG on the interpreter stack.
317 Return -1 if something goes wrong, 0 otherwise. */
319 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
321 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
322 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
323 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
325 /* Some targets/architectures can do extra processing/display of
326 segmentation faults. E.g., Intel MPX boundary faults.
327 Call the architecture dependent function to handle the fault.
328 UIOUT is the output stream where the handler will place information. */
330 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch
*gdbarch
);
332 typedef void (gdbarch_handle_segmentation_fault_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
333 extern void gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
334 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, gdbarch_handle_segmentation_fault_ftype
*handle_segmentation_fault
);
336 /* GDB's standard (or well known) register numbers. These can map onto
337 a real register or a pseudo (computed) register or not be defined at
339 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
341 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
342 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
344 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
345 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
347 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
348 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
350 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
351 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
353 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
355 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
356 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
357 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
359 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
361 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
362 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
363 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
365 /* Convert from an sdb register number to an internal gdb register number. */
367 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
368 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
369 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
371 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
372 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
374 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
375 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
376 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
378 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
379 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
380 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
382 /* Return the type of a register specified by the architecture. Only
383 the register cache should call this function directly; others should
384 use "register_type". */
386 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
388 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
389 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
390 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
392 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
393 a dummy frame. A dummy frame is created before an inferior call,
394 the frame_id returned here must match the frame_id that was built
395 for the inferior call. Usually this means the returned frame_id's
396 stack address should match the address returned by
397 gdbarch_push_dummy_call, and the returned frame_id's code address
398 should match the address at which the breakpoint was set in the dummy
401 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
402 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
403 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
405 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
406 deprecated_fp_regnum. */
408 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
409 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
411 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
413 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
);
414 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
);
415 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
417 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
418 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
420 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
422 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
);
423 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
);
424 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
426 /* Return true if the code of FRAME is writable. */
428 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
429 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
430 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
432 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
433 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
434 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
436 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
437 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
438 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
440 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
442 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
443 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
444 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
446 /* MAP a GDB RAW register number onto a simulator register number. See
447 also include/...-sim.h. */
449 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
450 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
451 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
453 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
454 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
455 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
457 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
458 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
459 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
461 /* Determine the address where a longjmp will land and save this address
462 in PC. Return nonzero on success.
464 FRAME corresponds to the longjmp frame. */
466 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
468 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
469 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
470 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
472 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
473 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
475 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
476 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
477 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
479 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
480 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
);
481 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
483 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
484 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
485 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
487 /* Construct a value representing the contents of register REGNUM in
488 frame FRAME_ID, interpreted as type TYPE. The routine needs to
489 allocate and return a struct value with all value attributes
490 (but not the value contents) filled in. */
492 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
493 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
494 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
496 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
497 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
498 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
500 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
501 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
502 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
504 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
506 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
507 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
508 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
510 /* Return the return-value convention that will be used by FUNCTION
511 to return a value of type VALTYPE. FUNCTION may be NULL in which
512 case the return convention is computed based only on VALTYPE.
514 If READBUF is not NULL, extract the return value and save it in this buffer.
516 If WRITEBUF is not NULL, it contains a return value which will be
517 stored into the appropriate register. This can be used when we want
518 to force the value returned by a function (see the "return" command
521 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
523 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
);
524 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
);
525 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
527 /* Return true if the return value of function is stored in the first hidden
528 parameter. In theory, this feature should be language-dependent, specified
529 by language and its ABI, such as C++. Unfortunately, compiler may
530 implement it to a target-dependent feature. So that we need such hook here
531 to be aware of this in GDB. */
533 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
534 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
535 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
);
537 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
538 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
539 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
541 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
543 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
544 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
545 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
547 /* On some platforms, a single function may provide multiple entry points,
548 e.g. one that is used for function-pointer calls and a different one
549 that is used for direct function calls.
550 In order to ensure that breakpoints set on the function will trigger
551 no matter via which entry point the function is entered, a platform
552 may provide the skip_entrypoint callback. It is called with IP set
553 to the main entry point of a function (as determined by the symbol table),
554 and should return the address of the innermost entry point, where the
555 actual breakpoint needs to be set. Note that skip_entrypoint is used
556 by GDB common code even when debugging optimized code, where skip_prologue
559 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
561 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
562 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
563 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
565 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
566 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
567 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
569 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
570 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
571 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
573 /* Return the breakpoint kind for this target based on *PCPTR. */
575 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
576 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
577 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
579 /* Return the software breakpoint from KIND. KIND can have target
580 specific meaning like the Z0 kind parameter.
581 SIZE is set to the software breakpoint's length in memory. */
583 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
584 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
585 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
587 /* Return the breakpoint kind for this target based on the current
588 processor state (e.g. the current instruction mode on ARM) and the
589 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
591 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
592 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
593 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
595 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
597 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
598 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
599 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
601 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
602 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
603 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
605 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
606 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
607 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
609 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
610 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
612 /* A function can be addressed by either it's "pointer" (possibly a
613 descriptor address) or "entry point" (first executable instruction).
614 The method "convert_from_func_ptr_addr" converting the former to the
615 latter. gdbarch_deprecated_function_start_offset is being used to implement
616 a simplified subset of that functionality - the function's address
617 corresponds to the "function pointer" and the function's start
618 corresponds to the "function entry point" - and hence is redundant. */
620 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
621 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
623 /* Return the remote protocol register number associated with this
624 register. Normally the identity mapping. */
626 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
627 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
628 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
630 /* Fetch the target specific address used to represent a load module. */
632 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
634 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
635 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
636 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
638 /* Return the thread-local address at OFFSET in the thread-local
639 storage for the thread PTID and the shared library or executable
640 file given by LM_ADDR. If that block of thread-local storage hasn't
641 been allocated yet, this function may throw an error. LM_ADDR may
642 be zero for statically linked multithreaded inferiors. */
644 extern int gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
646 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
647 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
648 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
650 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
651 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
653 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
654 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
655 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
657 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
658 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
659 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
661 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
662 frame-base. Enable frame-base before frame-unwind. */
664 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
666 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
667 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
668 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
670 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
672 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
673 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
674 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
676 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
677 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
678 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
680 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
681 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
683 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
684 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
685 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
687 /* On some machines there are bits in addresses which are not really
688 part of the address, but are used by the kernel, the hardware, etc.
689 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
690 we get a "real" address such as one would find in a symbol table.
691 This is used only for addresses of instructions, and even then I'm
692 not sure it's used in all contexts. It exists to deal with there
693 being a few stray bits in the PC which would mislead us, not as some
694 sort of generic thing to handle alignment or segmentation (it's
695 possible it should be in TARGET_READ_PC instead). */
697 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
698 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
699 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
701 /* On some machines, not all bits of an address word are significant.
702 For example, on AArch64, the top bits of an address known as the "tag"
703 are ignored by the kernel, the hardware, etc. and can be regarded as
704 additional data associated with the address. */
706 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
707 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
709 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
710 indicates if the target needs software single step. An ISA method to
713 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
714 target can single step. If not, then implement single step using breakpoints.
716 Return a vector of addresses on which the software single step
717 breakpoints should be inserted. NULL means software single step is
719 Multiple breakpoints may be inserted for some instructions such as
720 conditional branch. However, each implementation must always evaluate
721 the condition and only put the breakpoint at the branch destination if
722 the condition is true, so that we ensure forward progress when stepping
723 past a conditional branch to self. */
725 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
727 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
728 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
729 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
731 /* Return non-zero if the processor is executing a delay slot and a
732 further single-step is needed before the instruction finishes. */
734 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
736 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
737 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
738 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
740 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
741 disassembler. Perhaps objdump can handle it? */
743 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
744 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
745 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
747 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
748 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
749 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
751 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
752 evaluates non-zero, this is the address where the debugger will place
753 a step-resume breakpoint to get us past the dynamic linker. */
755 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
756 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
757 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
759 /* Some systems also have trampoline code for returning from shared libs. */
761 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
762 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
763 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
765 /* Return true if PC lies inside an indirect branch thunk. */
767 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
768 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
769 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
771 /* A target might have problems with watchpoints as soon as the stack
772 frame of the current function has been destroyed. This mostly happens
773 as the first action in a function's epilogue. stack_frame_destroyed_p()
774 is defined to return a non-zero value if either the given addr is one
775 instruction after the stack destroying instruction up to the trailing
776 return instruction or if we can figure out that the stack frame has
777 already been invalidated regardless of the value of addr. Targets
778 which don't suffer from that problem could just let this functionality
781 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
782 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
783 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
785 /* Process an ELF symbol in the minimal symbol table in a backend-specific
786 way. Normally this hook is supposed to do nothing, however if required,
787 then this hook can be used to apply tranformations to symbols that are
788 considered special in some way. For example the MIPS backend uses it
789 to interpret `st_other' information to mark compressed code symbols so
790 that they can be treated in the appropriate manner in the processing of
791 the main symbol table and DWARF-2 records. */
793 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
795 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
796 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
797 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
799 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
800 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
801 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
803 /* Process a symbol in the main symbol table in a backend-specific way.
804 Normally this hook is supposed to do nothing, however if required,
805 then this hook can be used to apply tranformations to symbols that
806 are considered special in some way. This is currently used by the
807 MIPS backend to make sure compressed code symbols have the ISA bit
808 set. This in turn is needed for symbol values seen in GDB to match
809 the values used at the runtime by the program itself, for function
810 and label references. */
812 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
813 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
814 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
816 /* Adjust the address retrieved from a DWARF-2 record other than a line
817 entry in a backend-specific way. Normally this hook is supposed to
818 return the address passed unchanged, however if that is incorrect for
819 any reason, then this hook can be used to fix the address up in the
820 required manner. This is currently used by the MIPS backend to make
821 sure addresses in FDE, range records, etc. referring to compressed
822 code have the ISA bit set, matching line information and the symbol
825 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
826 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
827 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
829 /* Adjust the address updated by a line entry in a backend-specific way.
830 Normally this hook is supposed to return the address passed unchanged,
831 however in the case of inconsistencies in these records, this hook can
832 be used to fix them up in the required manner. This is currently used
833 by the MIPS backend to make sure all line addresses in compressed code
834 are presented with the ISA bit set, which is not always the case. This
835 in turn ensures breakpoint addresses are correctly matched against the
838 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
839 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
840 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
842 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
843 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
845 /* See comment in target.h about continuable, steppable and
846 non-steppable watchpoints. */
848 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
849 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
851 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
853 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
854 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
855 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
857 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
859 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
860 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
861 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
);
863 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
864 FS are passed from the generic execute_cfa_program function. */
866 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
867 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
868 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
870 /* Return the appropriate type_flags for the supplied address class.
871 This function should return 1 if the address class was recognized and
872 type_flags was set, zero otherwise. */
874 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
876 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
877 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
878 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
);
880 /* Is a register in a group */
882 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
883 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
884 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
886 /* Fetch the pointer to the ith function argument. */
888 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
890 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
891 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
892 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
894 /* Iterate over all supported register notes in a core file. For each
895 supported register note section, the iterator must call CB and pass
896 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
897 the supported register note sections based on the current register
898 values. Otherwise it should enumerate all supported register note
901 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
903 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
904 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
905 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
907 /* Create core file notes */
909 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
911 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
912 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
913 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
915 /* Find core file memory regions */
917 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
919 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
920 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
921 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
923 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
924 core file into buffer READBUF with length LEN. Return the number of bytes read
925 (zero indicates failure).
926 failed, otherwise, return the red length of READBUF. */
928 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
930 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
931 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
932 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
934 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
935 libraries list from core file into buffer READBUF with length LEN.
936 Return the number of bytes read (zero indicates failure). */
938 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
940 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
941 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
942 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
944 /* How the core target converts a PTID from a core file to a string. */
946 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
948 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
949 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
950 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
952 /* How the core target extracts the name of a thread from a core file. */
954 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
956 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
957 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
958 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
960 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
961 from core file into buffer READBUF with length LEN. Return the number
962 of bytes read (zero indicates EOF, a negative value indicates failure). */
964 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
966 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
967 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
968 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
970 /* BFD target to use when generating a core file. */
972 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
974 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
975 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
977 /* If the elements of C++ vtables are in-place function descriptors rather
978 than normal function pointers (which may point to code or a descriptor),
981 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
982 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
984 /* Set if the least significant bit of the delta is used instead of the least
985 significant bit of the pfn for pointers to virtual member functions. */
987 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
988 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
990 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
992 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
993 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
994 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
996 /* The maximum length of an instruction on this architecture in bytes. */
998 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1000 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1001 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1003 /* Copy the instruction at FROM to TO, and make any adjustments
1004 necessary to single-step it at that address.
1006 REGS holds the state the thread's registers will have before
1007 executing the copied instruction; the PC in REGS will refer to FROM,
1008 not the copy at TO. The caller should update it to point at TO later.
1010 Return a pointer to data of the architecture's choice to be passed
1011 to gdbarch_displaced_step_fixup.
1013 For a general explanation of displaced stepping and how GDB uses it,
1014 see the comments in infrun.c.
1016 The TO area is only guaranteed to have space for
1017 gdbarch_max_insn_length (arch) bytes, so this function must not
1018 write more bytes than that to that area.
1020 If you do not provide this function, GDB assumes that the
1021 architecture does not support displaced stepping.
1023 If the instruction cannot execute out of line, return NULL. The
1024 core falls back to stepping past the instruction in-line instead in
1027 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1029 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
);
1030 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1031 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1033 /* Return true if GDB should use hardware single-stepping to execute
1034 the displaced instruction identified by CLOSURE. If false,
1035 GDB will simply restart execution at the displaced instruction
1036 location, and it is up to the target to ensure GDB will receive
1037 control again (e.g. by placing a software breakpoint instruction
1038 into the displaced instruction buffer).
1040 The default implementation returns false on all targets that
1041 provide a gdbarch_software_single_step routine, and true otherwise. */
1043 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
);
1044 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
);
1045 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1047 /* Fix up the state resulting from successfully single-stepping a
1048 displaced instruction, to give the result we would have gotten from
1049 stepping the instruction in its original location.
1051 REGS is the register state resulting from single-stepping the
1052 displaced instruction.
1054 CLOSURE is the result from the matching call to
1055 gdbarch_displaced_step_copy_insn.
1057 If you provide gdbarch_displaced_step_copy_insn.but not this
1058 function, then GDB assumes that no fixup is needed after
1059 single-stepping the instruction.
1061 For a general explanation of displaced stepping and how GDB uses it,
1062 see the comments in infrun.c. */
1064 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1066 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
);
1067 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
);
1068 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1070 /* Return the address of an appropriate place to put displaced
1071 instructions while we step over them. There need only be one such
1072 place, since we're only stepping one thread over a breakpoint at a
1075 For a general explanation of displaced stepping and how GDB uses it,
1076 see the comments in infrun.c.
1077 m;CORE_ADDR;displaced_step_location;thread_info *;thread;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
1078 m;CORE_ADDR;displaced_step_release_location;CORE_ADDR;addr;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn) */
1080 extern int gdbarch_displaced_step_prepare_p (struct gdbarch
*gdbarch
);
1082 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1083 extern displaced_step_prepare_status
gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, thread_info
*thread
);
1084 extern void set_gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, gdbarch_displaced_step_prepare_ftype
*displaced_step_prepare
);
1086 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1087 extern displaced_step_finish_status
gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1088 extern void set_gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, gdbarch_displaced_step_finish_ftype
*displaced_step_finish
);
1090 /* Relocate an instruction to execute at a different address. OLDLOC
1091 is the address in the inferior memory where the instruction to
1092 relocate is currently at. On input, TO points to the destination
1093 where we want the instruction to be copied (and possibly adjusted)
1094 to. On output, it points to one past the end of the resulting
1095 instruction(s). The effect of executing the instruction at TO shall
1096 be the same as if executing it at FROM. For example, call
1097 instructions that implicitly push the return address on the stack
1098 should be adjusted to return to the instruction after OLDLOC;
1099 relative branches, and other PC-relative instructions need the
1100 offset adjusted; etc. */
1102 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1104 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1105 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1106 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1108 /* Refresh overlay mapped state for section OSECT. */
1110 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1112 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1113 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1114 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1116 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1118 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1119 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1120 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1122 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1124 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1125 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1127 /* Parse the instruction at ADDR storing in the record execution log
1128 the registers REGCACHE and memory ranges that will be affected when
1129 the instruction executes, along with their current values.
1130 Return -1 if something goes wrong, 0 otherwise. */
1132 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1134 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1135 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1136 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1138 /* Save process state after a signal.
1139 Return -1 if something goes wrong, 0 otherwise. */
1141 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1143 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1144 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1145 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1147 /* Signal translation: translate inferior's signal (target's) number
1148 into GDB's representation. The implementation of this method must
1149 be host independent. IOW, don't rely on symbols of the NAT_FILE
1150 header (the nm-*.h files), the host <signal.h> header, or similar
1151 headers. This is mainly used when cross-debugging core files ---
1152 "Live" targets hide the translation behind the target interface
1153 (target_wait, target_resume, etc.). */
1155 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1157 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1158 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1159 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1161 /* Signal translation: translate the GDB's internal signal number into
1162 the inferior's signal (target's) representation. The implementation
1163 of this method must be host independent. IOW, don't rely on symbols
1164 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1165 header, or similar headers.
1166 Return the target signal number if found, or -1 if the GDB internal
1167 signal number is invalid. */
1169 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1171 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1172 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1173 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1175 /* Extra signal info inspection.
1177 Return a type suitable to inspect extra signal information. */
1179 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1181 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1182 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1183 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1185 /* Record architecture-specific information from the symbol table. */
1187 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1189 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1190 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1191 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1193 /* Function for the 'catch syscall' feature.
1194 Get architecture-specific system calls information from registers. */
1196 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1198 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1199 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1200 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1202 /* The filename of the XML syscall for this architecture. */
1204 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1205 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1207 /* Information about system calls from this architecture */
1209 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1210 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1212 /* SystemTap related fields and functions.
1213 A NULL-terminated array of prefixes used to mark an integer constant
1214 on the architecture's assembly.
1215 For example, on x86 integer constants are written as:
1217 $10 ;; integer constant 10
1219 in this case, this prefix would be the character `$'. */
1221 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1222 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1224 /* A NULL-terminated array of suffixes used to mark an integer constant
1225 on the architecture's assembly. */
1227 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1228 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1230 /* A NULL-terminated array of prefixes used to mark a register name on
1231 the architecture's assembly.
1232 For example, on x86 the register name is written as:
1234 %eax ;; register eax
1236 in this case, this prefix would be the character `%'. */
1238 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1239 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1241 /* A NULL-terminated array of suffixes used to mark a register name on
1242 the architecture's assembly. */
1244 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1245 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1247 /* A NULL-terminated array of prefixes used to mark a register
1248 indirection on the architecture's assembly.
1249 For example, on x86 the register indirection is written as:
1251 (%eax) ;; indirecting eax
1253 in this case, this prefix would be the charater `('.
1255 Please note that we use the indirection prefix also for register
1256 displacement, e.g., `4(%eax)' on x86. */
1258 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1259 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1261 /* A NULL-terminated array of suffixes used to mark a register
1262 indirection on the architecture's assembly.
1263 For example, on x86 the register indirection is written as:
1265 (%eax) ;; indirecting eax
1267 in this case, this prefix would be the charater `)'.
1269 Please note that we use the indirection suffix also for register
1270 displacement, e.g., `4(%eax)' on x86. */
1272 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1273 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1275 /* Prefix(es) used to name a register using GDB's nomenclature.
1277 For example, on PPC a register is represented by a number in the assembly
1278 language (e.g., `10' is the 10th general-purpose register). However,
1279 inside GDB this same register has an `r' appended to its name, so the 10th
1280 register would be represented as `r10' internally. */
1282 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1283 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1285 /* Suffix used to name a register using GDB's nomenclature. */
1287 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1288 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1290 /* Check if S is a single operand.
1292 Single operands can be:
1293 - Literal integers, e.g. `$10' on x86
1294 - Register access, e.g. `%eax' on x86
1295 - Register indirection, e.g. `(%eax)' on x86
1296 - Register displacement, e.g. `4(%eax)' on x86
1298 This function should check for these patterns on the string
1299 and return 1 if some were found, or zero otherwise. Please try to match
1300 as much info as you can from the string, i.e., if you have to match
1301 something like `(%', do not match just the `('. */
1303 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1305 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1306 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1307 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1309 /* Function used to handle a "special case" in the parser.
1311 A "special case" is considered to be an unknown token, i.e., a token
1312 that the parser does not know how to parse. A good example of special
1313 case would be ARM's register displacement syntax:
1315 [R0, #4] ;; displacing R0 by 4
1317 Since the parser assumes that a register displacement is of the form:
1319 <number> <indirection_prefix> <register_name> <indirection_suffix>
1321 it means that it will not be able to recognize and parse this odd syntax.
1322 Therefore, we should add a special case function that will handle this token.
1324 This function should generate the proper expression form of the expression
1325 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1326 and so on). It should also return 1 if the parsing was successful, or zero
1327 if the token was not recognized as a special token (in this case, returning
1328 zero means that the special parser is deferring the parsing to the generic
1329 parser), and should advance the buffer pointer (p->arg). */
1331 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1333 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1334 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1335 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1337 /* Perform arch-dependent adjustments to a register name.
1339 In very specific situations, it may be necessary for the register
1340 name present in a SystemTap probe's argument to be handled in a
1341 special way. For example, on i386, GCC may over-optimize the
1342 register allocation and use smaller registers than necessary. In
1343 such cases, the client that is reading and evaluating the SystemTap
1344 probe (ourselves) will need to actually fetch values from the wider
1345 version of the register in question.
1347 To illustrate the example, consider the following probe argument
1352 This argument says that its value can be found at the %ax register,
1353 which is a 16-bit register. However, the argument's prefix says
1354 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1355 this case, GDB should actually fetch the probe's value from register
1356 %eax, not %ax. In this scenario, this function would actually
1357 replace the register name from %ax to %eax.
1359 The rationale for this can be found at PR breakpoints/24541. */
1361 extern int gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1363 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1364 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1365 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1367 /* DTrace related functions.
1368 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1369 NARG must be >= 0. */
1371 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1373 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1374 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1375 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1377 /* True if the given ADDR does not contain the instruction sequence
1378 corresponding to a disabled DTrace is-enabled probe. */
1380 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1382 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1383 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1384 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1386 /* Enable a DTrace is-enabled probe at ADDR. */
1388 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1390 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1391 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1392 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1394 /* Disable a DTrace is-enabled probe at ADDR. */
1396 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1398 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1399 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1400 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1402 /* True if the list of shared libraries is one and only for all
1403 processes, as opposed to a list of shared libraries per inferior.
1404 This usually means that all processes, although may or may not share
1405 an address space, will see the same set of symbols at the same
1408 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1409 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1411 /* On some targets, even though each inferior has its own private
1412 address space, the debug interface takes care of making breakpoints
1413 visible to all address spaces automatically. For such cases,
1414 this property should be set to true. */
1416 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1417 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1419 /* True if inferiors share an address space (e.g., uClinux). */
1421 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1422 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1423 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1425 /* True if a fast tracepoint can be set at an address. */
1427 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1428 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1429 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1431 /* Guess register state based on tracepoint location. Used for tracepoints
1432 where no registers have been collected, but there's only one location,
1433 allowing us to guess the PC value, and perhaps some other registers.
1434 On entry, regcache has all registers marked as unavailable. */
1436 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1437 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1438 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1440 /* Return the "auto" target charset. */
1442 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1443 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1444 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1446 /* Return the "auto" target wide charset. */
1448 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1449 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1450 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1452 /* If non-empty, this is a file extension that will be opened in place
1453 of the file extension reported by the shared library list.
1455 This is most useful for toolchains that use a post-linker tool,
1456 where the names of the files run on the target differ in extension
1457 compared to the names of the files GDB should load for debug info. */
1459 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1460 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1462 /* If true, the target OS has DOS-based file system semantics. That
1463 is, absolute paths include a drive name, and the backslash is
1464 considered a directory separator. */
1466 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1467 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1469 /* Generate bytecodes to collect the return address in a frame.
1470 Since the bytecodes run on the target, possibly with GDB not even
1471 connected, the full unwinding machinery is not available, and
1472 typically this function will issue bytecodes for one or more likely
1473 places that the return address may be found. */
1475 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1476 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1477 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1479 /* Implement the "info proc" command. */
1481 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1483 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1484 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1485 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1487 /* Implement the "info proc" command for core files. Noe that there
1488 are two "info_proc"-like methods on gdbarch -- one for core files,
1489 one for live targets. */
1491 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1493 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1494 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1495 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1497 /* Iterate over all objfiles in the order that makes the most sense
1498 for the architecture to make global symbol searches.
1500 CB is a callback function where OBJFILE is the objfile to be searched,
1501 and CB_DATA a pointer to user-defined data (the same data that is passed
1502 when calling this gdbarch method). The iteration stops if this function
1505 CB_DATA is a pointer to some user-defined data to be passed to
1508 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1509 inspected when the symbol search was requested. */
1511 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
);
1512 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
);
1513 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
);
1515 /* Ravenscar arch-dependent ops. */
1517 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1518 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1520 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1522 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1523 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1524 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1526 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1528 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1529 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1530 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1532 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1534 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1535 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1536 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1538 /* Return true if there's a program/permanent breakpoint planted in
1539 memory at ADDRESS, return false otherwise. */
1541 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1542 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1543 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1545 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1546 Return 0 if *READPTR is already at the end of the buffer.
1547 Return -1 if there is insufficient buffer for a whole entry.
1548 Return 1 if an entry was read into *TYPEP and *VALP. */
1550 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1552 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1553 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1554 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1556 /* Print the description of a single auxv entry described by TYPE and VAL
1559 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1560 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1561 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1563 /* Find the address range of the current inferior's vsyscall/vDSO, and
1564 write it to *RANGE. If the vsyscall's length can't be determined, a
1565 range with zero length is returned. Returns true if the vsyscall is
1566 found, false otherwise. */
1568 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1569 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1570 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1572 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1573 PROT has GDB_MMAP_PROT_* bitmask format.
1574 Throw an error if it is not possible. Returned address is always valid. */
1576 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1577 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1578 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1580 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1581 Print a warning if it is not possible. */
1583 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1584 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1585 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1587 /* Return string (caller has to use xfree for it) with options for GCC
1588 to produce code for this target, typically "-m64", "-m32" or "-m31".
1589 These options are put before CU's DW_AT_producer compilation options so that
1590 they can override it. */
1592 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1593 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1594 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1596 /* Return a regular expression that matches names used by this
1597 architecture in GNU configury triplets. The result is statically
1598 allocated and must not be freed. The default implementation simply
1599 returns the BFD architecture name, which is correct in nearly every
1602 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1603 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1604 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1606 /* Return the size in 8-bit bytes of an addressable memory unit on this
1607 architecture. This corresponds to the number of 8-bit bytes associated to
1608 each address in memory. */
1610 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1611 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1612 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1614 /* Functions for allowing a target to modify its disassembler options. */
1616 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1617 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1619 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1620 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1622 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1623 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1625 /* Type alignment override method. Return the architecture specific
1626 alignment required for TYPE. If there is no special handling
1627 required for TYPE then return the value 0, GDB will then apply the
1628 default rules as laid out in gdbtypes.c:type_align. */
1630 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1631 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1632 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1634 /* Return a string containing any flags for the given PC in the given FRAME. */
1636 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1637 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1638 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1640 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1643 /* Mechanism for co-ordinating the selection of a specific
1646 GDB targets (*-tdep.c) can register an interest in a specific
1647 architecture. Other GDB components can register a need to maintain
1648 per-architecture data.
1650 The mechanisms below ensures that there is only a loose connection
1651 between the set-architecture command and the various GDB
1652 components. Each component can independently register their need
1653 to maintain architecture specific data with gdbarch.
1657 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1660 The more traditional mega-struct containing architecture specific
1661 data for all the various GDB components was also considered. Since
1662 GDB is built from a variable number of (fairly independent)
1663 components it was determined that the global aproach was not
1667 /* Register a new architectural family with GDB.
1669 Register support for the specified ARCHITECTURE with GDB. When
1670 gdbarch determines that the specified architecture has been
1671 selected, the corresponding INIT function is called.
1675 The INIT function takes two parameters: INFO which contains the
1676 information available to gdbarch about the (possibly new)
1677 architecture; ARCHES which is a list of the previously created
1678 ``struct gdbarch'' for this architecture.
1680 The INFO parameter is, as far as possible, be pre-initialized with
1681 information obtained from INFO.ABFD or the global defaults.
1683 The ARCHES parameter is a linked list (sorted most recently used)
1684 of all the previously created architures for this architecture
1685 family. The (possibly NULL) ARCHES->gdbarch can used to access
1686 values from the previously selected architecture for this
1687 architecture family.
1689 The INIT function shall return any of: NULL - indicating that it
1690 doesn't recognize the selected architecture; an existing ``struct
1691 gdbarch'' from the ARCHES list - indicating that the new
1692 architecture is just a synonym for an earlier architecture (see
1693 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1694 - that describes the selected architecture (see gdbarch_alloc()).
1696 The DUMP_TDEP function shall print out all target specific values.
1697 Care should be taken to ensure that the function works in both the
1698 multi-arch and non- multi-arch cases. */
1702 struct gdbarch
*gdbarch
;
1703 struct gdbarch_list
*next
;
1708 /* Use default: NULL (ZERO). */
1709 const struct bfd_arch_info
*bfd_arch_info
;
1711 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1712 enum bfd_endian byte_order
;
1714 enum bfd_endian byte_order_for_code
;
1716 /* Use default: NULL (ZERO). */
1719 /* Use default: NULL (ZERO). */
1722 /* Architecture-specific information. The generic form for targets
1723 that have extra requirements. */
1724 struct gdbarch_tdep_info
*tdep_info
;
1726 /* Architecture-specific target description data. Numerous targets
1727 need only this, so give them an easy way to hold it. */
1728 struct tdesc_arch_data
*tdesc_data
;
1730 /* SPU file system ID. This is a single integer, so using the
1731 generic form would only complicate code. Other targets may
1732 reuse this member if suitable. */
1736 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1737 enum gdb_osabi osabi
;
1739 /* Use default: NULL (ZERO). */
1740 const struct target_desc
*target_desc
;
1743 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1744 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1746 /* DEPRECATED - use gdbarch_register() */
1747 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1749 extern void gdbarch_register (enum bfd_architecture architecture
,
1750 gdbarch_init_ftype
*,
1751 gdbarch_dump_tdep_ftype
*);
1754 /* Return a freshly allocated, NULL terminated, array of the valid
1755 architecture names. Since architectures are registered during the
1756 _initialize phase this function only returns useful information
1757 once initialization has been completed. */
1759 extern const char **gdbarch_printable_names (void);
1762 /* Helper function. Search the list of ARCHES for a GDBARCH that
1763 matches the information provided by INFO. */
1765 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1768 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1769 basic initialization using values obtained from the INFO and TDEP
1770 parameters. set_gdbarch_*() functions are called to complete the
1771 initialization of the object. */
1773 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1776 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1777 It is assumed that the caller freeds the ``struct
1780 extern void gdbarch_free (struct gdbarch
*);
1782 /* Get the obstack owned by ARCH. */
1784 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1786 /* Helper function. Allocate memory from the ``struct gdbarch''
1787 obstack. The memory is freed when the corresponding architecture
1790 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1792 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1794 /* Duplicate STRING, returning an equivalent string that's allocated on the
1795 obstack associated with GDBARCH. The string is freed when the corresponding
1796 architecture is also freed. */
1798 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1800 /* Helper function. Force an update of the current architecture.
1802 The actual architecture selected is determined by INFO, ``(gdb) set
1803 architecture'' et.al., the existing architecture and BFD's default
1804 architecture. INFO should be initialized to zero and then selected
1805 fields should be updated.
1807 Returns non-zero if the update succeeds. */
1809 extern int gdbarch_update_p (struct gdbarch_info info
);
1812 /* Helper function. Find an architecture matching info.
1814 INFO should be initialized using gdbarch_info_init, relevant fields
1815 set, and then finished using gdbarch_info_fill.
1817 Returns the corresponding architecture, or NULL if no matching
1818 architecture was found. */
1820 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1823 /* Helper function. Set the target gdbarch to "gdbarch". */
1825 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1828 /* Register per-architecture data-pointer.
1830 Reserve space for a per-architecture data-pointer. An identifier
1831 for the reserved data-pointer is returned. That identifer should
1832 be saved in a local static variable.
1834 Memory for the per-architecture data shall be allocated using
1835 gdbarch_obstack_zalloc. That memory will be deleted when the
1836 corresponding architecture object is deleted.
1838 When a previously created architecture is re-selected, the
1839 per-architecture data-pointer for that previous architecture is
1840 restored. INIT() is not re-called.
1842 Multiple registrarants for any architecture are allowed (and
1843 strongly encouraged). */
1845 struct gdbarch_data
;
1847 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1848 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1849 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1850 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1852 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1855 /* Set the dynamic target-system-dependent parameters (architecture,
1856 byte-order, ...) using information found in the BFD. */
1858 extern void set_gdbarch_from_file (bfd
*);
1861 /* Initialize the current architecture to the "first" one we find on
1864 extern void initialize_current_architecture (void);
1866 /* gdbarch trace variable */
1867 extern unsigned int gdbarch_debug
;
1869 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1871 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1874 gdbarch_num_cooked_regs (gdbarch
*arch
)
1876 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);