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''.
25 The Bourne shell script ``gdbarch.sh'' creates the files
26 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
27 against the existing ``gdbarch.[hc]''. Any differences found
30 If editing this file, please also run gdbarch.sh and merge any
31 changes into that script. Conversely, when making sweeping changes
32 to this file, modifying gdbarch.sh and using its output may prove
41 #include "gdb_obstack.h"
43 #include "displaced-stepping.h"
50 struct minimal_symbol
;
54 struct disassemble_info
;
57 struct bp_target_info
;
63 struct stap_parse_info
;
65 struct ravenscar_arch_ops
;
73 /* The architecture associated with the inferior through the
74 connection to the target.
76 The architecture vector provides some information that is really a
77 property of the inferior, accessed through a particular target:
78 ptrace operations; the layout of certain RSP packets; the solib_ops
79 vector; etc. To differentiate architecture accesses to
80 per-inferior/target properties from
81 per-thread/per-frame/per-objfile properties, accesses to
82 per-inferior/target properties should be made through this
85 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
86 extern struct gdbarch
*target_gdbarch (void);
88 /* Callback type for the 'iterate_over_objfiles_in_search_order'
91 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
92 (struct objfile
*objfile
, void *cb_data
);
94 /* Callback type for regset section iterators. The callback usually
95 invokes the REGSET's supply or collect method, to which it must
96 pass a buffer - for collects this buffer will need to be created using
97 COLLECT_SIZE, for supply the existing buffer being read from should
98 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
99 is used for diagnostic messages. CB_DATA should have been passed
100 unchanged through the iterator. */
102 typedef void (iterate_over_regset_sections_cb
)
103 (const char *sect_name
, int supply_size
, int collect_size
,
104 const struct regset
*regset
, const char *human_name
, void *cb_data
);
106 /* For a function call, does the function return a value using a
107 normal value return or a structure return - passing a hidden
108 argument pointing to storage. For the latter, there are two
109 cases: language-mandated structure return and target ABI
112 enum function_call_return_method
114 /* Standard value return. */
115 return_method_normal
= 0,
117 /* Language ABI structure return. This is handled
118 by passing the return location as the first parameter to
119 the function, even preceding "this". */
120 return_method_hidden_param
,
122 /* Target ABI struct return. This is target-specific; for instance,
123 on ia64 the first argument is passed in out0 but the hidden
124 structure return pointer would normally be passed in r8. */
125 return_method_struct
,
130 /* The following are pre-initialized by GDBARCH. */
132 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
133 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
135 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
136 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
138 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
139 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
141 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
142 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
144 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
145 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
148 /* The following are initialized by the target dependent code. */
150 /* Number of bits in a short or unsigned short for the target machine. */
152 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
153 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
155 /* Number of bits in an int or unsigned int for the target machine. */
157 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
158 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
160 /* Number of bits in a long or unsigned long for the target machine. */
162 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
163 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
165 /* Number of bits in a long long or unsigned long long for the target
168 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
169 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
171 /* The ABI default bit-size and format for "half", "float", "double", and
172 "long double". These bit/format pairs should eventually be combined
173 into a single object. For the moment, just initialize them as a pair.
174 Each format describes both the big and little endian layouts (if
177 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
178 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
180 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
181 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
183 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
184 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
186 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
187 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
189 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
190 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
192 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
193 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
195 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
196 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
198 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
199 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
201 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
202 starting with C++11. */
204 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
205 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
207 /* One if `wchar_t' is signed, zero if unsigned. */
209 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
210 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
212 /* Returns the floating-point format to be used for values of length LENGTH.
213 NAME, if non-NULL, is the type name, which may be used to distinguish
214 different target formats of the same length. */
216 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
217 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
218 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
220 /* For most targets, a pointer on the target and its representation as an
221 address in GDB have the same size and "look the same". For such a
222 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
223 / addr_bit will be set from it.
225 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
226 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
227 gdbarch_address_to_pointer as well.
229 ptr_bit is the size of a pointer on the target */
231 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
232 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
234 /* addr_bit is the size of a target address as represented in gdb */
236 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
237 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
239 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
240 info. For .debug_frame FDEs, this is supposed to be the target address
241 size from the associated CU header, and which is equivalent to the
242 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
243 Unfortunately there is no good way to determine this value. Therefore
244 dwarf2_addr_size simply defaults to the target pointer size.
246 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
247 defined using the target's pointer size so far.
249 Note that dwarf2_addr_size only needs to be redefined by a target if the
250 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
251 and if Dwarf versions < 4 need to be supported. */
253 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
254 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
256 /* One if `char' acts like `signed char', zero if `unsigned char'. */
258 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
259 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
261 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
263 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
264 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
265 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
267 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
269 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
270 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
271 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
273 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
274 whole scheme for dealing with "frames" and "frame pointers" needs a
275 serious shakedown. */
277 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
278 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
279 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
281 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
283 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
284 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
285 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
287 /* Read a register into a new struct value. If the register is wholly
288 or partly unavailable, this should call mark_value_bytes_unavailable
289 as appropriate. If this is defined, then pseudo_register_read will
292 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
294 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
295 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
296 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
298 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
300 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
301 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
302 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
304 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
305 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
307 /* This macro gives the number of pseudo-registers that live in the
308 register namespace but do not get fetched or stored on the target.
309 These pseudo-registers may be aliases for other registers,
310 combinations of other registers, or they may be computed by GDB. */
312 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
313 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
315 /* Assemble agent expression bytecode to collect pseudo-register REG.
316 Return -1 if something goes wrong, 0 otherwise. */
318 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
320 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
321 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
322 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
324 /* Assemble agent expression bytecode to push the value of pseudo-register
325 REG on the interpreter stack.
326 Return -1 if something goes wrong, 0 otherwise. */
328 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
330 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
331 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
332 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
334 /* Some targets/architectures can do extra processing/display of
335 segmentation faults. E.g., Intel MPX boundary faults.
336 Call the architecture dependent function to handle the fault.
337 UIOUT is the output stream where the handler will place information. */
339 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch
*gdbarch
);
341 typedef void (gdbarch_handle_segmentation_fault_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
342 extern void gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
343 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, gdbarch_handle_segmentation_fault_ftype
*handle_segmentation_fault
);
345 /* GDB's standard (or well known) register numbers. These can map onto
346 a real register or a pseudo (computed) register or not be defined at
348 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
350 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
351 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
353 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
354 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
356 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
357 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
359 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
360 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
362 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
364 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
365 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
366 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
368 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
370 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
371 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
372 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
374 /* Convert from an sdb register number to an internal gdb register number. */
376 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
377 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
378 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
380 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
381 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
383 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
384 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
385 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
387 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
388 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
389 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
391 /* Return the type of a register specified by the architecture. Only
392 the register cache should call this function directly; others should
393 use "register_type". */
395 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
397 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
398 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
399 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
401 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
402 a dummy frame. A dummy frame is created before an inferior call,
403 the frame_id returned here must match the frame_id that was built
404 for the inferior call. Usually this means the returned frame_id's
405 stack address should match the address returned by
406 gdbarch_push_dummy_call, and the returned frame_id's code address
407 should match the address at which the breakpoint was set in the dummy
410 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
411 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
412 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
414 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
415 deprecated_fp_regnum. */
417 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
418 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
420 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
422 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
);
423 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
);
424 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
426 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
427 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
429 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
431 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
);
432 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
);
433 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
435 /* Return true if the code of FRAME is writable. */
437 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
438 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
439 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
441 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
442 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
443 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
445 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
446 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
447 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
449 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
451 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
452 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
453 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
455 /* MAP a GDB RAW register number onto a simulator register number. See
456 also include/...-sim.h. */
458 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
459 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
460 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
462 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
463 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
464 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
466 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
467 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
468 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
470 /* Determine the address where a longjmp will land and save this address
471 in PC. Return nonzero on success.
473 FRAME corresponds to the longjmp frame. */
475 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
477 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
478 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
479 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
481 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
482 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
484 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
485 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
486 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
488 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
489 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
);
490 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
492 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
493 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
494 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
496 /* Construct a value representing the contents of register REGNUM in
497 frame FRAME_ID, interpreted as type TYPE. The routine needs to
498 allocate and return a struct value with all value attributes
499 (but not the value contents) filled in. */
501 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
502 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
503 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
505 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
506 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
507 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
509 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
510 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
511 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
513 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
515 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
516 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
517 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
519 /* Return the return-value convention that will be used by FUNCTION
520 to return a value of type VALTYPE. FUNCTION may be NULL in which
521 case the return convention is computed based only on VALTYPE.
523 If READBUF is not NULL, extract the return value and save it in this buffer.
525 If WRITEBUF is not NULL, it contains a return value which will be
526 stored into the appropriate register. This can be used when we want
527 to force the value returned by a function (see the "return" command
530 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
532 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
);
533 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
);
534 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
536 /* Return true if the return value of function is stored in the first hidden
537 parameter. In theory, this feature should be language-dependent, specified
538 by language and its ABI, such as C++. Unfortunately, compiler may
539 implement it to a target-dependent feature. So that we need such hook here
540 to be aware of this in GDB. */
542 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
543 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
544 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
);
546 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
547 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
548 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
550 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
552 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
553 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
554 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
556 /* On some platforms, a single function may provide multiple entry points,
557 e.g. one that is used for function-pointer calls and a different one
558 that is used for direct function calls.
559 In order to ensure that breakpoints set on the function will trigger
560 no matter via which entry point the function is entered, a platform
561 may provide the skip_entrypoint callback. It is called with IP set
562 to the main entry point of a function (as determined by the symbol table),
563 and should return the address of the innermost entry point, where the
564 actual breakpoint needs to be set. Note that skip_entrypoint is used
565 by GDB common code even when debugging optimized code, where skip_prologue
568 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
570 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
571 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
572 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
574 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
575 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
576 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
578 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
579 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
580 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
582 /* Return the breakpoint kind for this target based on *PCPTR. */
584 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
585 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
586 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
588 /* Return the software breakpoint from KIND. KIND can have target
589 specific meaning like the Z0 kind parameter.
590 SIZE is set to the software breakpoint's length in memory. */
592 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
593 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
594 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
596 /* Return the breakpoint kind for this target based on the current
597 processor state (e.g. the current instruction mode on ARM) and the
598 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
600 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
601 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
602 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
604 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
606 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
607 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
608 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
610 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
611 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
612 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
614 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
615 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
616 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
618 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
619 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
621 /* A function can be addressed by either it's "pointer" (possibly a
622 descriptor address) or "entry point" (first executable instruction).
623 The method "convert_from_func_ptr_addr" converting the former to the
624 latter. gdbarch_deprecated_function_start_offset is being used to implement
625 a simplified subset of that functionality - the function's address
626 corresponds to the "function pointer" and the function's start
627 corresponds to the "function entry point" - and hence is redundant. */
629 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
630 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
632 /* Return the remote protocol register number associated with this
633 register. Normally the identity mapping. */
635 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
636 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
637 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
639 /* Fetch the target specific address used to represent a load module. */
641 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
643 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
644 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
645 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
647 /* Return the thread-local address at OFFSET in the thread-local
648 storage for the thread PTID and the shared library or executable
649 file given by LM_ADDR. If that block of thread-local storage hasn't
650 been allocated yet, this function may throw an error. LM_ADDR may
651 be zero for statically linked multithreaded inferiors. */
653 extern int gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
655 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
656 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
657 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
659 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
660 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
662 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
663 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
664 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
666 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
667 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
668 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
670 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
671 frame-base. Enable frame-base before frame-unwind. */
673 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
675 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
676 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
677 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
679 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
681 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
682 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
683 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
685 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
686 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
687 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
689 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
690 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
692 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
693 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
694 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
696 /* On some machines there are bits in addresses which are not really
697 part of the address, but are used by the kernel, the hardware, etc.
698 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
699 we get a "real" address such as one would find in a symbol table.
700 This is used only for addresses of instructions, and even then I'm
701 not sure it's used in all contexts. It exists to deal with there
702 being a few stray bits in the PC which would mislead us, not as some
703 sort of generic thing to handle alignment or segmentation (it's
704 possible it should be in TARGET_READ_PC instead). */
706 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
707 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
708 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
710 /* On some machines, not all bits of an address word are significant.
711 For example, on AArch64, the top bits of an address known as the "tag"
712 are ignored by the kernel, the hardware, etc. and can be regarded as
713 additional data associated with the address. */
715 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
716 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
718 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
719 indicates if the target needs software single step. An ISA method to
722 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
723 target can single step. If not, then implement single step using breakpoints.
725 Return a vector of addresses on which the software single step
726 breakpoints should be inserted. NULL means software single step is
728 Multiple breakpoints may be inserted for some instructions such as
729 conditional branch. However, each implementation must always evaluate
730 the condition and only put the breakpoint at the branch destination if
731 the condition is true, so that we ensure forward progress when stepping
732 past a conditional branch to self. */
734 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
736 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
737 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
738 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
740 /* Return non-zero if the processor is executing a delay slot and a
741 further single-step is needed before the instruction finishes. */
743 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
745 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
746 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
747 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
749 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
750 disassembler. Perhaps objdump can handle it? */
752 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
753 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
754 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
756 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
757 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
758 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
760 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
761 evaluates non-zero, this is the address where the debugger will place
762 a step-resume breakpoint to get us past the dynamic linker. */
764 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
765 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
766 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
768 /* Some systems also have trampoline code for returning from shared libs. */
770 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
771 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
772 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
774 /* Return true if PC lies inside an indirect branch thunk. */
776 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
777 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
778 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
780 /* A target might have problems with watchpoints as soon as the stack
781 frame of the current function has been destroyed. This mostly happens
782 as the first action in a function's epilogue. stack_frame_destroyed_p()
783 is defined to return a non-zero value if either the given addr is one
784 instruction after the stack destroying instruction up to the trailing
785 return instruction or if we can figure out that the stack frame has
786 already been invalidated regardless of the value of addr. Targets
787 which don't suffer from that problem could just let this functionality
790 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
791 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
792 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
794 /* Process an ELF symbol in the minimal symbol table in a backend-specific
795 way. Normally this hook is supposed to do nothing, however if required,
796 then this hook can be used to apply tranformations to symbols that are
797 considered special in some way. For example the MIPS backend uses it
798 to interpret `st_other' information to mark compressed code symbols so
799 that they can be treated in the appropriate manner in the processing of
800 the main symbol table and DWARF-2 records. */
802 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
804 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
805 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
806 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
808 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
809 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
810 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
812 /* Process a symbol in the main symbol table in a backend-specific way.
813 Normally this hook is supposed to do nothing, however if required,
814 then this hook can be used to apply tranformations to symbols that
815 are considered special in some way. This is currently used by the
816 MIPS backend to make sure compressed code symbols have the ISA bit
817 set. This in turn is needed for symbol values seen in GDB to match
818 the values used at the runtime by the program itself, for function
819 and label references. */
821 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
822 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
823 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
825 /* Adjust the address retrieved from a DWARF-2 record other than a line
826 entry in a backend-specific way. Normally this hook is supposed to
827 return the address passed unchanged, however if that is incorrect for
828 any reason, then this hook can be used to fix the address up in the
829 required manner. This is currently used by the MIPS backend to make
830 sure addresses in FDE, range records, etc. referring to compressed
831 code have the ISA bit set, matching line information and the symbol
834 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
835 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
836 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
838 /* Adjust the address updated by a line entry in a backend-specific way.
839 Normally this hook is supposed to return the address passed unchanged,
840 however in the case of inconsistencies in these records, this hook can
841 be used to fix them up in the required manner. This is currently used
842 by the MIPS backend to make sure all line addresses in compressed code
843 are presented with the ISA bit set, which is not always the case. This
844 in turn ensures breakpoint addresses are correctly matched against the
847 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
848 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
849 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
851 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
852 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
854 /* See comment in target.h about continuable, steppable and
855 non-steppable watchpoints. */
857 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
858 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
860 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
862 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
863 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
864 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
866 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
868 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
869 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
870 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
);
872 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
873 FS are passed from the generic execute_cfa_program function. */
875 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
876 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
877 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
879 /* Return the appropriate type_flags for the supplied address class.
880 This function should return 1 if the address class was recognized and
881 type_flags was set, zero otherwise. */
883 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
885 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
886 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
887 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
);
889 /* Is a register in a group */
891 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
892 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
893 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
895 /* Fetch the pointer to the ith function argument. */
897 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
899 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
900 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
901 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
903 /* Iterate over all supported register notes in a core file. For each
904 supported register note section, the iterator must call CB and pass
905 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
906 the supported register note sections based on the current register
907 values. Otherwise it should enumerate all supported register note
910 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
912 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
913 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
914 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
916 /* Create core file notes */
918 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
920 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
921 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
922 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
924 /* Find core file memory regions */
926 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
928 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
929 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
930 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
932 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
933 core file into buffer READBUF with length LEN. Return the number of bytes read
934 (zero indicates failure).
935 failed, otherwise, return the red length of READBUF. */
937 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
939 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
940 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
941 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
943 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
944 libraries list from core file into buffer READBUF with length LEN.
945 Return the number of bytes read (zero indicates failure). */
947 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
949 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
950 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
951 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
953 /* How the core target converts a PTID from a core file to a string. */
955 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
957 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
958 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
959 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
961 /* How the core target extracts the name of a thread from a core file. */
963 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
965 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
966 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
967 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
969 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
970 from core file into buffer READBUF with length LEN. Return the number
971 of bytes read (zero indicates EOF, a negative value indicates failure). */
973 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
975 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
976 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
977 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
979 /* BFD target to use when generating a core file. */
981 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
983 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
984 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
986 /* If the elements of C++ vtables are in-place function descriptors rather
987 than normal function pointers (which may point to code or a descriptor),
990 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
991 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
993 /* Set if the least significant bit of the delta is used instead of the least
994 significant bit of the pfn for pointers to virtual member functions. */
996 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
997 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
999 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1001 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
1002 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
1003 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
1005 /* The maximum length of an instruction on this architecture in bytes. */
1007 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1009 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1010 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1012 /* Copy the instruction at FROM to TO, and make any adjustments
1013 necessary to single-step it at that address.
1015 REGS holds the state the thread's registers will have before
1016 executing the copied instruction; the PC in REGS will refer to FROM,
1017 not the copy at TO. The caller should update it to point at TO later.
1019 Return a pointer to data of the architecture's choice to be passed
1020 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
1021 the instruction's effects have been completely simulated, with the
1022 resulting state written back to REGS.
1024 For a general explanation of displaced stepping and how GDB uses it,
1025 see the comments in infrun.c.
1027 The TO area is only guaranteed to have space for
1028 gdbarch_max_insn_length (arch) bytes, so this function must not
1029 write more bytes than that to that area.
1031 If you do not provide this function, GDB assumes that the
1032 architecture does not support displaced stepping.
1034 If the instruction cannot execute out of line, return NULL. The
1035 core falls back to stepping past the instruction in-line instead in
1038 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1040 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
);
1041 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1042 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1044 /* Return true if GDB should use hardware single-stepping to execute
1045 the displaced instruction identified by CLOSURE. If false,
1046 GDB will simply restart execution at the displaced instruction
1047 location, and it is up to the target to ensure GDB will receive
1048 control again (e.g. by placing a software breakpoint instruction
1049 into the displaced instruction buffer).
1051 The default implementation returns false on all targets that
1052 provide a gdbarch_software_single_step routine, and true otherwise. */
1054 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
);
1055 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
);
1056 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1058 /* Fix up the state resulting from successfully single-stepping a
1059 displaced instruction, to give the result we would have gotten from
1060 stepping the instruction in its original location.
1062 REGS is the register state resulting from single-stepping the
1063 displaced instruction.
1065 CLOSURE is the result from the matching call to
1066 gdbarch_displaced_step_copy_insn.
1068 If you provide gdbarch_displaced_step_copy_insn.but not this
1069 function, then GDB assumes that no fixup is needed after
1070 single-stepping the instruction.
1072 For a general explanation of displaced stepping and how GDB uses it,
1073 see the comments in infrun.c. */
1075 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1077 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
);
1078 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
);
1079 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1081 /* Return the address of an appropriate place to put displaced
1082 instructions while we step over them. There need only be one such
1083 place, since we're only stepping one thread over a breakpoint at a
1086 For a general explanation of displaced stepping and how GDB uses it,
1087 see the comments in infrun.c.
1088 m;CORE_ADDR;displaced_step_location;thread_info *;thread;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
1089 m;CORE_ADDR;displaced_step_release_location;CORE_ADDR;addr;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn) */
1091 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1092 extern displaced_step_prepare_status
gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, thread_info
*thread
);
1093 extern void set_gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, gdbarch_displaced_step_prepare_ftype
*displaced_step_prepare
);
1095 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1096 extern displaced_step_finish_status
gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, thread_info
*thread
, gdb_signal sig
);
1097 extern void set_gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, gdbarch_displaced_step_finish_ftype
*displaced_step_finish
);
1099 /* Relocate an instruction to execute at a different address. OLDLOC
1100 is the address in the inferior memory where the instruction to
1101 relocate is currently at. On input, TO points to the destination
1102 where we want the instruction to be copied (and possibly adjusted)
1103 to. On output, it points to one past the end of the resulting
1104 instruction(s). The effect of executing the instruction at TO shall
1105 be the same as if executing it at FROM. For example, call
1106 instructions that implicitly push the return address on the stack
1107 should be adjusted to return to the instruction after OLDLOC;
1108 relative branches, and other PC-relative instructions need the
1109 offset adjusted; etc. */
1111 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1113 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1114 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1115 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1117 /* Refresh overlay mapped state for section OSECT. */
1119 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1121 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1122 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1123 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1125 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1127 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1128 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1129 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1131 /* Handle special encoding of static variables in stabs debug info. */
1133 extern int gdbarch_static_transform_name_p (struct gdbarch
*gdbarch
);
1135 typedef const char * (gdbarch_static_transform_name_ftype
) (const char *name
);
1136 extern const char * gdbarch_static_transform_name (struct gdbarch
*gdbarch
, const char *name
);
1137 extern void set_gdbarch_static_transform_name (struct gdbarch
*gdbarch
, gdbarch_static_transform_name_ftype
*static_transform_name
);
1139 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1141 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1142 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1144 /* Parse the instruction at ADDR storing in the record execution log
1145 the registers REGCACHE and memory ranges that will be affected when
1146 the instruction executes, along with their current values.
1147 Return -1 if something goes wrong, 0 otherwise. */
1149 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1151 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1152 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1153 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1155 /* Save process state after a signal.
1156 Return -1 if something goes wrong, 0 otherwise. */
1158 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1160 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1161 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1162 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1164 /* Signal translation: translate inferior's signal (target's) number
1165 into GDB's representation. The implementation of this method must
1166 be host independent. IOW, don't rely on symbols of the NAT_FILE
1167 header (the nm-*.h files), the host <signal.h> header, or similar
1168 headers. This is mainly used when cross-debugging core files ---
1169 "Live" targets hide the translation behind the target interface
1170 (target_wait, target_resume, etc.). */
1172 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1174 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1175 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1176 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1178 /* Signal translation: translate the GDB's internal signal number into
1179 the inferior's signal (target's) representation. The implementation
1180 of this method must be host independent. IOW, don't rely on symbols
1181 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1182 header, or similar headers.
1183 Return the target signal number if found, or -1 if the GDB internal
1184 signal number is invalid. */
1186 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1188 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1189 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1190 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1192 /* Extra signal info inspection.
1194 Return a type suitable to inspect extra signal information. */
1196 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1198 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1199 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1200 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1202 /* Record architecture-specific information from the symbol table. */
1204 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1206 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1207 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1208 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1210 /* Function for the 'catch syscall' feature.
1211 Get architecture-specific system calls information from registers. */
1213 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1215 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1216 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1217 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1219 /* The filename of the XML syscall for this architecture. */
1221 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1222 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1224 /* Information about system calls from this architecture */
1226 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1227 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1229 /* SystemTap related fields and functions.
1230 A NULL-terminated array of prefixes used to mark an integer constant
1231 on the architecture's assembly.
1232 For example, on x86 integer constants are written as:
1234 $10 ;; integer constant 10
1236 in this case, this prefix would be the character `$'. */
1238 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1239 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1241 /* A NULL-terminated array of suffixes used to mark an integer constant
1242 on the architecture's assembly. */
1244 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1245 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1247 /* A NULL-terminated array of prefixes used to mark a register name on
1248 the architecture's assembly.
1249 For example, on x86 the register name is written as:
1251 %eax ;; register eax
1253 in this case, this prefix would be the character `%'. */
1255 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1256 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1258 /* A NULL-terminated array of suffixes used to mark a register name on
1259 the architecture's assembly. */
1261 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1262 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1264 /* A NULL-terminated array of prefixes used to mark a register
1265 indirection on the architecture's assembly.
1266 For example, on x86 the register indirection is written as:
1268 (%eax) ;; indirecting eax
1270 in this case, this prefix would be the charater `('.
1272 Please note that we use the indirection prefix also for register
1273 displacement, e.g., `4(%eax)' on x86. */
1275 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1276 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1278 /* A NULL-terminated array of suffixes used to mark a register
1279 indirection on the architecture's assembly.
1280 For example, on x86 the register indirection is written as:
1282 (%eax) ;; indirecting eax
1284 in this case, this prefix would be the charater `)'.
1286 Please note that we use the indirection suffix also for register
1287 displacement, e.g., `4(%eax)' on x86. */
1289 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1290 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1292 /* Prefix(es) used to name a register using GDB's nomenclature.
1294 For example, on PPC a register is represented by a number in the assembly
1295 language (e.g., `10' is the 10th general-purpose register). However,
1296 inside GDB this same register has an `r' appended to its name, so the 10th
1297 register would be represented as `r10' internally. */
1299 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1300 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1302 /* Suffix used to name a register using GDB's nomenclature. */
1304 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1305 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1307 /* Check if S is a single operand.
1309 Single operands can be:
1310 - Literal integers, e.g. `$10' on x86
1311 - Register access, e.g. `%eax' on x86
1312 - Register indirection, e.g. `(%eax)' on x86
1313 - Register displacement, e.g. `4(%eax)' on x86
1315 This function should check for these patterns on the string
1316 and return 1 if some were found, or zero otherwise. Please try to match
1317 as much info as you can from the string, i.e., if you have to match
1318 something like `(%', do not match just the `('. */
1320 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1322 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1323 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1324 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1326 /* Function used to handle a "special case" in the parser.
1328 A "special case" is considered to be an unknown token, i.e., a token
1329 that the parser does not know how to parse. A good example of special
1330 case would be ARM's register displacement syntax:
1332 [R0, #4] ;; displacing R0 by 4
1334 Since the parser assumes that a register displacement is of the form:
1336 <number> <indirection_prefix> <register_name> <indirection_suffix>
1338 it means that it will not be able to recognize and parse this odd syntax.
1339 Therefore, we should add a special case function that will handle this token.
1341 This function should generate the proper expression form of the expression
1342 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1343 and so on). It should also return 1 if the parsing was successful, or zero
1344 if the token was not recognized as a special token (in this case, returning
1345 zero means that the special parser is deferring the parsing to the generic
1346 parser), and should advance the buffer pointer (p->arg). */
1348 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1350 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1351 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1352 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1354 /* Perform arch-dependent adjustments to a register name.
1356 In very specific situations, it may be necessary for the register
1357 name present in a SystemTap probe's argument to be handled in a
1358 special way. For example, on i386, GCC may over-optimize the
1359 register allocation and use smaller registers than necessary. In
1360 such cases, the client that is reading and evaluating the SystemTap
1361 probe (ourselves) will need to actually fetch values from the wider
1362 version of the register in question.
1364 To illustrate the example, consider the following probe argument
1369 This argument says that its value can be found at the %ax register,
1370 which is a 16-bit register. However, the argument's prefix says
1371 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1372 this case, GDB should actually fetch the probe's value from register
1373 %eax, not %ax. In this scenario, this function would actually
1374 replace the register name from %ax to %eax.
1376 The rationale for this can be found at PR breakpoints/24541. */
1378 extern int gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1380 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1381 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1382 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1384 /* DTrace related functions.
1385 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1386 NARG must be >= 0. */
1388 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1390 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1391 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1392 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1394 /* True if the given ADDR does not contain the instruction sequence
1395 corresponding to a disabled DTrace is-enabled probe. */
1397 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1399 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1400 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1401 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1403 /* Enable a DTrace is-enabled probe at ADDR. */
1405 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1407 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1408 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1409 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1411 /* Disable a DTrace is-enabled probe at ADDR. */
1413 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1415 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1416 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1417 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1419 /* True if the list of shared libraries is one and only for all
1420 processes, as opposed to a list of shared libraries per inferior.
1421 This usually means that all processes, although may or may not share
1422 an address space, will see the same set of symbols at the same
1425 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1426 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1428 /* On some targets, even though each inferior has its own private
1429 address space, the debug interface takes care of making breakpoints
1430 visible to all address spaces automatically. For such cases,
1431 this property should be set to true. */
1433 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1434 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1436 /* True if inferiors share an address space (e.g., uClinux). */
1438 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1439 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1440 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1442 /* True if a fast tracepoint can be set at an address. */
1444 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1445 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1446 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1448 /* Guess register state based on tracepoint location. Used for tracepoints
1449 where no registers have been collected, but there's only one location,
1450 allowing us to guess the PC value, and perhaps some other registers.
1451 On entry, regcache has all registers marked as unavailable. */
1453 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1454 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1455 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1457 /* Return the "auto" target charset. */
1459 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1460 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1461 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1463 /* Return the "auto" target wide charset. */
1465 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1466 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1467 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1469 /* If non-empty, this is a file extension that will be opened in place
1470 of the file extension reported by the shared library list.
1472 This is most useful for toolchains that use a post-linker tool,
1473 where the names of the files run on the target differ in extension
1474 compared to the names of the files GDB should load for debug info. */
1476 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1477 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1479 /* If true, the target OS has DOS-based file system semantics. That
1480 is, absolute paths include a drive name, and the backslash is
1481 considered a directory separator. */
1483 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1484 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1486 /* Generate bytecodes to collect the return address in a frame.
1487 Since the bytecodes run on the target, possibly with GDB not even
1488 connected, the full unwinding machinery is not available, and
1489 typically this function will issue bytecodes for one or more likely
1490 places that the return address may be found. */
1492 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1493 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1494 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1496 /* Implement the "info proc" command. */
1498 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1500 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1501 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1502 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1504 /* Implement the "info proc" command for core files. Noe that there
1505 are two "info_proc"-like methods on gdbarch -- one for core files,
1506 one for live targets. */
1508 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1510 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1511 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1512 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1514 /* Iterate over all objfiles in the order that makes the most sense
1515 for the architecture to make global symbol searches.
1517 CB is a callback function where OBJFILE is the objfile to be searched,
1518 and CB_DATA a pointer to user-defined data (the same data that is passed
1519 when calling this gdbarch method). The iteration stops if this function
1522 CB_DATA is a pointer to some user-defined data to be passed to
1525 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1526 inspected when the symbol search was requested. */
1528 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
);
1529 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
);
1530 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
);
1532 /* Ravenscar arch-dependent ops. */
1534 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1535 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1537 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1539 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1540 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1541 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1543 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1545 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1546 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1547 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1549 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1551 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1552 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1553 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1555 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1556 Return 0 if *READPTR is already at the end of the buffer.
1557 Return -1 if there is insufficient buffer for a whole entry.
1558 Return 1 if an entry was read into *TYPEP and *VALP. */
1560 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1562 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1563 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1564 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1566 /* Print the description of a single auxv entry described by TYPE and VAL
1569 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1570 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1571 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1573 /* Find the address range of the current inferior's vsyscall/vDSO, and
1574 write it to *RANGE. If the vsyscall's length can't be determined, a
1575 range with zero length is returned. Returns true if the vsyscall is
1576 found, false otherwise. */
1578 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1579 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1580 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1582 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1583 PROT has GDB_MMAP_PROT_* bitmask format.
1584 Throw an error if it is not possible. Returned address is always valid. */
1586 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1587 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1588 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1590 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1591 Print a warning if it is not possible. */
1593 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1594 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1595 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1597 /* Return string (caller has to use xfree for it) with options for GCC
1598 to produce code for this target, typically "-m64", "-m32" or "-m31".
1599 These options are put before CU's DW_AT_producer compilation options so that
1600 they can override it. */
1602 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1603 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1604 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1606 /* Return a regular expression that matches names used by this
1607 architecture in GNU configury triplets. The result is statically
1608 allocated and must not be freed. The default implementation simply
1609 returns the BFD architecture name, which is correct in nearly every
1612 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1613 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1614 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1616 /* Return the size in 8-bit bytes of an addressable memory unit on this
1617 architecture. This corresponds to the number of 8-bit bytes associated to
1618 each address in memory. */
1620 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1621 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1622 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1624 /* Functions for allowing a target to modify its disassembler options. */
1626 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1627 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1629 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1630 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1632 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1633 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1635 /* Type alignment override method. Return the architecture specific
1636 alignment required for TYPE. If there is no special handling
1637 required for TYPE then return the value 0, GDB will then apply the
1638 default rules as laid out in gdbtypes.c:type_align. */
1640 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1641 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1642 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1644 /* Return a string containing any flags for the given PC in the given FRAME. */
1646 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1647 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1648 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1650 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1653 /* Mechanism for co-ordinating the selection of a specific
1656 GDB targets (*-tdep.c) can register an interest in a specific
1657 architecture. Other GDB components can register a need to maintain
1658 per-architecture data.
1660 The mechanisms below ensures that there is only a loose connection
1661 between the set-architecture command and the various GDB
1662 components. Each component can independently register their need
1663 to maintain architecture specific data with gdbarch.
1667 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1670 The more traditional mega-struct containing architecture specific
1671 data for all the various GDB components was also considered. Since
1672 GDB is built from a variable number of (fairly independent)
1673 components it was determined that the global aproach was not
1677 /* Register a new architectural family with GDB.
1679 Register support for the specified ARCHITECTURE with GDB. When
1680 gdbarch determines that the specified architecture has been
1681 selected, the corresponding INIT function is called.
1685 The INIT function takes two parameters: INFO which contains the
1686 information available to gdbarch about the (possibly new)
1687 architecture; ARCHES which is a list of the previously created
1688 ``struct gdbarch'' for this architecture.
1690 The INFO parameter is, as far as possible, be pre-initialized with
1691 information obtained from INFO.ABFD or the global defaults.
1693 The ARCHES parameter is a linked list (sorted most recently used)
1694 of all the previously created architures for this architecture
1695 family. The (possibly NULL) ARCHES->gdbarch can used to access
1696 values from the previously selected architecture for this
1697 architecture family.
1699 The INIT function shall return any of: NULL - indicating that it
1700 doesn't recognize the selected architecture; an existing ``struct
1701 gdbarch'' from the ARCHES list - indicating that the new
1702 architecture is just a synonym for an earlier architecture (see
1703 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1704 - that describes the selected architecture (see gdbarch_alloc()).
1706 The DUMP_TDEP function shall print out all target specific values.
1707 Care should be taken to ensure that the function works in both the
1708 multi-arch and non- multi-arch cases. */
1712 struct gdbarch
*gdbarch
;
1713 struct gdbarch_list
*next
;
1718 /* Use default: NULL (ZERO). */
1719 const struct bfd_arch_info
*bfd_arch_info
;
1721 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1722 enum bfd_endian byte_order
;
1724 enum bfd_endian byte_order_for_code
;
1726 /* Use default: NULL (ZERO). */
1729 /* Use default: NULL (ZERO). */
1732 /* Architecture-specific information. The generic form for targets
1733 that have extra requirements. */
1734 struct gdbarch_tdep_info
*tdep_info
;
1736 /* Architecture-specific target description data. Numerous targets
1737 need only this, so give them an easy way to hold it. */
1738 struct tdesc_arch_data
*tdesc_data
;
1740 /* SPU file system ID. This is a single integer, so using the
1741 generic form would only complicate code. Other targets may
1742 reuse this member if suitable. */
1746 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1747 enum gdb_osabi osabi
;
1749 /* Use default: NULL (ZERO). */
1750 const struct target_desc
*target_desc
;
1753 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1754 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1756 /* DEPRECATED - use gdbarch_register() */
1757 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1759 extern void gdbarch_register (enum bfd_architecture architecture
,
1760 gdbarch_init_ftype
*,
1761 gdbarch_dump_tdep_ftype
*);
1764 /* Return a freshly allocated, NULL terminated, array of the valid
1765 architecture names. Since architectures are registered during the
1766 _initialize phase this function only returns useful information
1767 once initialization has been completed. */
1769 extern const char **gdbarch_printable_names (void);
1772 /* Helper function. Search the list of ARCHES for a GDBARCH that
1773 matches the information provided by INFO. */
1775 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1778 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1779 basic initialization using values obtained from the INFO and TDEP
1780 parameters. set_gdbarch_*() functions are called to complete the
1781 initialization of the object. */
1783 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1786 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1787 It is assumed that the caller freeds the ``struct
1790 extern void gdbarch_free (struct gdbarch
*);
1792 /* Get the obstack owned by ARCH. */
1794 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1796 /* Helper function. Allocate memory from the ``struct gdbarch''
1797 obstack. The memory is freed when the corresponding architecture
1800 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1802 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1804 /* Duplicate STRING, returning an equivalent string that's allocated on the
1805 obstack associated with GDBARCH. The string is freed when the corresponding
1806 architecture is also freed. */
1808 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1810 /* Helper function. Force an update of the current architecture.
1812 The actual architecture selected is determined by INFO, ``(gdb) set
1813 architecture'' et.al., the existing architecture and BFD's default
1814 architecture. INFO should be initialized to zero and then selected
1815 fields should be updated.
1817 Returns non-zero if the update succeeds. */
1819 extern int gdbarch_update_p (struct gdbarch_info info
);
1822 /* Helper function. Find an architecture matching info.
1824 INFO should be initialized using gdbarch_info_init, relevant fields
1825 set, and then finished using gdbarch_info_fill.
1827 Returns the corresponding architecture, or NULL if no matching
1828 architecture was found. */
1830 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1833 /* Helper function. Set the target gdbarch to "gdbarch". */
1835 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1838 /* Register per-architecture data-pointer.
1840 Reserve space for a per-architecture data-pointer. An identifier
1841 for the reserved data-pointer is returned. That identifer should
1842 be saved in a local static variable.
1844 Memory for the per-architecture data shall be allocated using
1845 gdbarch_obstack_zalloc. That memory will be deleted when the
1846 corresponding architecture object is deleted.
1848 When a previously created architecture is re-selected, the
1849 per-architecture data-pointer for that previous architecture is
1850 restored. INIT() is not re-called.
1852 Multiple registrarants for any architecture are allowed (and
1853 strongly encouraged). */
1855 struct gdbarch_data
;
1857 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1858 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1859 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1860 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1861 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1862 struct gdbarch_data
*data
,
1865 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1868 /* Set the dynamic target-system-dependent parameters (architecture,
1869 byte-order, ...) using information found in the BFD. */
1871 extern void set_gdbarch_from_file (bfd
*);
1874 /* Initialize the current architecture to the "first" one we find on
1877 extern void initialize_current_architecture (void);
1879 /* gdbarch trace variable */
1880 extern unsigned int gdbarch_debug
;
1882 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1884 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1887 gdbarch_num_cooked_regs (gdbarch
*arch
)
1889 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);