1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2020 Free Software Foundation, Inc.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file was created with the aid of ``gdbarch.sh''. */
31 #include "gdb_obstack.h"
40 struct minimal_symbol
;
44 struct disassemble_info
;
47 struct bp_target_info
;
53 struct stap_parse_info
;
55 struct ravenscar_arch_ops
;
63 /* The architecture associated with the inferior through the
64 connection to the target.
66 The architecture vector provides some information that is really a
67 property of the inferior, accessed through a particular target:
68 ptrace operations; the layout of certain RSP packets; the solib_ops
69 vector; etc. To differentiate architecture accesses to
70 per-inferior/target properties from
71 per-thread/per-frame/per-objfile properties, accesses to
72 per-inferior/target properties should be made through this
75 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
76 extern struct gdbarch
*target_gdbarch (void);
78 /* Callback type for the 'iterate_over_objfiles_in_search_order'
81 typedef int (iterate_over_objfiles_in_search_order_cb_ftype
)
82 (struct objfile
*objfile
, void *cb_data
);
84 /* Callback type for regset section iterators. The callback usually
85 invokes the REGSET's supply or collect method, to which it must
86 pass a buffer - for collects this buffer will need to be created using
87 COLLECT_SIZE, for supply the existing buffer being read from should
88 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
89 is used for diagnostic messages. CB_DATA should have been passed
90 unchanged through the iterator. */
92 typedef void (iterate_over_regset_sections_cb
)
93 (const char *sect_name
, int supply_size
, int collect_size
,
94 const struct regset
*regset
, const char *human_name
, void *cb_data
);
96 /* For a function call, does the function return a value using a
97 normal value return or a structure return - passing a hidden
98 argument pointing to storage. For the latter, there are two
99 cases: language-mandated structure return and target ABI
102 enum function_call_return_method
104 /* Standard value return. */
105 return_method_normal
= 0,
107 /* Language ABI structure return. This is handled
108 by passing the return location as the first parameter to
109 the function, even preceding "this". */
110 return_method_hidden_param
,
112 /* Target ABI struct return. This is target-specific; for instance,
113 on ia64 the first argument is passed in out0 but the hidden
114 structure return pointer would normally be passed in r8. */
115 return_method_struct
,
120 /* The following are pre-initialized by GDBARCH. */
122 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
123 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
125 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
126 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
128 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
129 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
131 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
132 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
134 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
135 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
138 /* The following are initialized by the target dependent code. */
140 /* Number of bits in a short or unsigned short for the target machine. */
142 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
143 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
145 /* Number of bits in an int or unsigned int for the target machine. */
147 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
148 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
150 /* Number of bits in a long or unsigned long for the target machine. */
152 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
153 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
155 /* Number of bits in a long long or unsigned long long for the target
158 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
159 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
161 /* The ABI default bit-size and format for "half", "float", "double", and
162 "long double". These bit/format pairs should eventually be combined
163 into a single object. For the moment, just initialize them as a pair.
164 Each format describes both the big and little endian layouts (if
167 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
168 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
170 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
171 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
173 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
174 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
176 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
177 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
179 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
180 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
182 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
183 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
185 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
186 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
188 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
189 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
191 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
192 starting with C++11. */
194 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
195 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
197 /* One if `wchar_t' is signed, zero if unsigned. */
199 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
200 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
202 /* Returns the floating-point format to be used for values of length LENGTH.
203 NAME, if non-NULL, is the type name, which may be used to distinguish
204 different target formats of the same length. */
206 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
207 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
208 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
210 /* For most targets, a pointer on the target and its representation as an
211 address in GDB have the same size and "look the same". For such a
212 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
213 / addr_bit will be set from it.
215 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
216 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
217 gdbarch_address_to_pointer as well.
219 ptr_bit is the size of a pointer on the target */
221 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
222 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
224 /* addr_bit is the size of a target address as represented in gdb */
226 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
227 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
229 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
230 info. For .debug_frame FDEs, this is supposed to be the target address
231 size from the associated CU header, and which is equivalent to the
232 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
233 Unfortunately there is no good way to determine this value. Therefore
234 dwarf2_addr_size simply defaults to the target pointer size.
236 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
237 defined using the target's pointer size so far.
239 Note that dwarf2_addr_size only needs to be redefined by a target if the
240 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
241 and if Dwarf versions < 4 need to be supported. */
243 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
244 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
246 /* One if `char' acts like `signed char', zero if `unsigned char'. */
248 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
249 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
251 extern int gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
253 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
254 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
255 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
257 extern int gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
259 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
260 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
261 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
263 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
264 whole scheme for dealing with "frames" and "frame pointers" needs a
265 serious shakedown. */
267 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
268 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
269 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
271 extern int gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
273 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
274 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
275 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
277 /* Read a register into a new struct value. If the register is wholly
278 or partly unavailable, this should call mark_value_bytes_unavailable
279 as appropriate. If this is defined, then pseudo_register_read will
282 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
284 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
285 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
286 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
288 extern int gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
290 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
291 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
292 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
294 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
295 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
297 /* This macro gives the number of pseudo-registers that live in the
298 register namespace but do not get fetched or stored on the target.
299 These pseudo-registers may be aliases for other registers,
300 combinations of other registers, or they may be computed by GDB. */
302 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
303 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
305 /* Assemble agent expression bytecode to collect pseudo-register REG.
306 Return -1 if something goes wrong, 0 otherwise. */
308 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
310 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
311 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
312 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
314 /* Assemble agent expression bytecode to push the value of pseudo-register
315 REG on the interpreter stack.
316 Return -1 if something goes wrong, 0 otherwise. */
318 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
320 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
321 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
322 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
324 /* Some targets/architectures can do extra processing/display of
325 segmentation faults. E.g., Intel MPX boundary faults.
326 Call the architecture dependent function to handle the fault.
327 UIOUT is the output stream where the handler will place information. */
329 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch
*gdbarch
);
331 typedef void (gdbarch_handle_segmentation_fault_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
332 extern void gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, struct ui_out
*uiout
);
333 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch
*gdbarch
, gdbarch_handle_segmentation_fault_ftype
*handle_segmentation_fault
);
335 /* GDB's standard (or well known) register numbers. These can map onto
336 a real register or a pseudo (computed) register or not be defined at
338 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
340 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
341 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
343 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
344 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
346 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
347 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
349 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
350 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
352 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
354 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
355 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
356 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
358 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
360 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
361 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
362 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
364 /* Convert from an sdb register number to an internal gdb register number. */
366 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
367 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
368 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
370 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
371 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
373 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
374 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
375 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
377 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
378 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
379 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
381 /* Return the type of a register specified by the architecture. Only
382 the register cache should call this function directly; others should
383 use "register_type". */
385 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
387 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
388 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
389 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
391 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
392 a dummy frame. A dummy frame is created before an inferior call,
393 the frame_id returned here must match the frame_id that was built
394 for the inferior call. Usually this means the returned frame_id's
395 stack address should match the address returned by
396 gdbarch_push_dummy_call, and the returned frame_id's code address
397 should match the address at which the breakpoint was set in the dummy
400 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
401 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
402 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
404 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
405 deprecated_fp_regnum. */
407 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
408 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
410 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
412 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
);
413 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
);
414 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
416 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
417 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
419 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
421 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
);
422 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
);
423 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
425 /* Return true if the code of FRAME is writable. */
427 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
428 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
429 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
431 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
432 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
433 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
435 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
436 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
437 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
439 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
441 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
442 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
443 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
445 /* MAP a GDB RAW register number onto a simulator register number. See
446 also include/...-sim.h. */
448 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
449 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
450 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
452 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
453 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
454 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
456 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
457 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
458 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
460 /* Determine the address where a longjmp will land and save this address
461 in PC. Return nonzero on success.
463 FRAME corresponds to the longjmp frame. */
465 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
467 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
468 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
469 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
471 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
472 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
474 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
475 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
476 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
478 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
479 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
);
480 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
482 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
483 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
484 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
486 /* Construct a value representing the contents of register REGNUM in
487 frame FRAME_ID, interpreted as type TYPE. The routine needs to
488 allocate and return a struct value with all value attributes
489 (but not the value contents) filled in. */
491 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
492 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
493 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
495 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
496 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
497 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
499 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
500 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
501 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
503 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
505 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
506 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
507 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
509 /* Return the return-value convention that will be used by FUNCTION
510 to return a value of type VALTYPE. FUNCTION may be NULL in which
511 case the return convention is computed based only on VALTYPE.
513 If READBUF is not NULL, extract the return value and save it in this buffer.
515 If WRITEBUF is not NULL, it contains a return value which will be
516 stored into the appropriate register. This can be used when we want
517 to force the value returned by a function (see the "return" command
520 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
522 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
);
523 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
);
524 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
526 /* Return true if the return value of function is stored in the first hidden
527 parameter. In theory, this feature should be language-dependent, specified
528 by language and its ABI, such as C++. Unfortunately, compiler may
529 implement it to a target-dependent feature. So that we need such hook here
530 to be aware of this in GDB. */
532 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
533 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
534 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
);
536 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
537 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
538 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
540 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
542 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
543 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
544 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
546 /* On some platforms, a single function may provide multiple entry points,
547 e.g. one that is used for function-pointer calls and a different one
548 that is used for direct function calls.
549 In order to ensure that breakpoints set on the function will trigger
550 no matter via which entry point the function is entered, a platform
551 may provide the skip_entrypoint callback. It is called with IP set
552 to the main entry point of a function (as determined by the symbol table),
553 and should return the address of the innermost entry point, where the
554 actual breakpoint needs to be set. Note that skip_entrypoint is used
555 by GDB common code even when debugging optimized code, where skip_prologue
558 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
560 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
561 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
562 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
564 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
565 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
566 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
568 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
569 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
570 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
572 /* Return the breakpoint kind for this target based on *PCPTR. */
574 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
575 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
576 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
578 /* Return the software breakpoint from KIND. KIND can have target
579 specific meaning like the Z0 kind parameter.
580 SIZE is set to the software breakpoint's length in memory. */
582 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
583 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
584 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
586 /* Return the breakpoint kind for this target based on the current
587 processor state (e.g. the current instruction mode on ARM) and the
588 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
590 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
591 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
592 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
594 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
596 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
597 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
598 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
600 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
601 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
602 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
604 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
605 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
606 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
608 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
609 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
611 /* A function can be addressed by either it's "pointer" (possibly a
612 descriptor address) or "entry point" (first executable instruction).
613 The method "convert_from_func_ptr_addr" converting the former to the
614 latter. gdbarch_deprecated_function_start_offset is being used to implement
615 a simplified subset of that functionality - the function's address
616 corresponds to the "function pointer" and the function's start
617 corresponds to the "function entry point" - and hence is redundant. */
619 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
620 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
622 /* Return the remote protocol register number associated with this
623 register. Normally the identity mapping. */
625 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
626 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
627 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
629 /* Fetch the target specific address used to represent a load module. */
631 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
633 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
634 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
635 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
637 /* Return the thread-local address at OFFSET in the thread-local
638 storage for the thread PTID and the shared library or executable
639 file given by LM_ADDR. If that block of thread-local storage hasn't
640 been allocated yet, this function may throw an error. LM_ADDR may
641 be zero for statically linked multithreaded inferiors. */
643 extern int gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
645 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
646 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
647 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
649 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
650 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
652 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
653 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
654 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
656 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
657 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
658 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
660 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
661 frame-base. Enable frame-base before frame-unwind. */
663 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
665 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
666 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
667 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
669 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
671 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
672 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
673 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
675 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
676 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
677 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
679 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
680 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
682 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
683 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
684 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
686 /* On some machines there are bits in addresses which are not really
687 part of the address, but are used by the kernel, the hardware, etc.
688 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
689 we get a "real" address such as one would find in a symbol table.
690 This is used only for addresses of instructions, and even then I'm
691 not sure it's used in all contexts. It exists to deal with there
692 being a few stray bits in the PC which would mislead us, not as some
693 sort of generic thing to handle alignment or segmentation (it's
694 possible it should be in TARGET_READ_PC instead). */
696 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
697 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
698 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
700 /* On some machines, not all bits of an address word are significant.
701 For example, on AArch64, the top bits of an address known as the "tag"
702 are ignored by the kernel, the hardware, etc. and can be regarded as
703 additional data associated with the address. */
705 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
706 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
708 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
709 indicates if the target needs software single step. An ISA method to
712 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
713 target can single step. If not, then implement single step using breakpoints.
715 Return a vector of addresses on which the software single step
716 breakpoints should be inserted. NULL means software single step is
718 Multiple breakpoints may be inserted for some instructions such as
719 conditional branch. However, each implementation must always evaluate
720 the condition and only put the breakpoint at the branch destination if
721 the condition is true, so that we ensure forward progress when stepping
722 past a conditional branch to self. */
724 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
726 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
727 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
728 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
730 /* Return non-zero if the processor is executing a delay slot and a
731 further single-step is needed before the instruction finishes. */
733 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
735 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
736 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
737 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
739 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
740 disassembler. Perhaps objdump can handle it? */
742 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
743 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
744 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
746 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
747 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
748 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
750 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
751 evaluates non-zero, this is the address where the debugger will place
752 a step-resume breakpoint to get us past the dynamic linker. */
754 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
755 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
756 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
758 /* Some systems also have trampoline code for returning from shared libs. */
760 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
761 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
762 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
764 /* Return true if PC lies inside an indirect branch thunk. */
766 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
767 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
768 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
770 /* A target might have problems with watchpoints as soon as the stack
771 frame of the current function has been destroyed. This mostly happens
772 as the first action in a function's epilogue. stack_frame_destroyed_p()
773 is defined to return a non-zero value if either the given addr is one
774 instruction after the stack destroying instruction up to the trailing
775 return instruction or if we can figure out that the stack frame has
776 already been invalidated regardless of the value of addr. Targets
777 which don't suffer from that problem could just let this functionality
780 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
781 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
782 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
784 /* Process an ELF symbol in the minimal symbol table in a backend-specific
785 way. Normally this hook is supposed to do nothing, however if required,
786 then this hook can be used to apply tranformations to symbols that are
787 considered special in some way. For example the MIPS backend uses it
788 to interpret `st_other' information to mark compressed code symbols so
789 that they can be treated in the appropriate manner in the processing of
790 the main symbol table and DWARF-2 records. */
792 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
794 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
795 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
796 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
798 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
799 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
800 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
802 /* Process a symbol in the main symbol table in a backend-specific way.
803 Normally this hook is supposed to do nothing, however if required,
804 then this hook can be used to apply tranformations to symbols that
805 are considered special in some way. This is currently used by the
806 MIPS backend to make sure compressed code symbols have the ISA bit
807 set. This in turn is needed for symbol values seen in GDB to match
808 the values used at the runtime by the program itself, for function
809 and label references. */
811 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
812 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
813 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
815 /* Adjust the address retrieved from a DWARF-2 record other than a line
816 entry in a backend-specific way. Normally this hook is supposed to
817 return the address passed unchanged, however if that is incorrect for
818 any reason, then this hook can be used to fix the address up in the
819 required manner. This is currently used by the MIPS backend to make
820 sure addresses in FDE, range records, etc. referring to compressed
821 code have the ISA bit set, matching line information and the symbol
824 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
825 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
826 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
828 /* Adjust the address updated by a line entry in a backend-specific way.
829 Normally this hook is supposed to return the address passed unchanged,
830 however in the case of inconsistencies in these records, this hook can
831 be used to fix them up in the required manner. This is currently used
832 by the MIPS backend to make sure all line addresses in compressed code
833 are presented with the ISA bit set, which is not always the case. This
834 in turn ensures breakpoint addresses are correctly matched against the
837 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
838 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
839 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
841 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
842 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
844 /* See comment in target.h about continuable, steppable and
845 non-steppable watchpoints. */
847 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
848 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
850 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
852 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
853 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
854 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
856 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
858 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
859 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
860 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
);
862 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
863 FS are passed from the generic execute_cfa_program function. */
865 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
866 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
867 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
869 /* Return the appropriate type_flags for the supplied address class.
870 This function should return 1 if the address class was recognized and
871 type_flags was set, zero otherwise. */
873 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
875 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
876 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
877 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
);
879 /* Is a register in a group */
881 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
882 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
883 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
885 /* Fetch the pointer to the ith function argument. */
887 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
889 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
890 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
891 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
893 /* Iterate over all supported register notes in a core file. For each
894 supported register note section, the iterator must call CB and pass
895 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
896 the supported register note sections based on the current register
897 values. Otherwise it should enumerate all supported register note
900 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
902 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
903 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
904 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
906 /* Create core file notes */
908 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
910 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
911 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
912 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
914 /* Find core file memory regions */
916 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
918 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
919 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
920 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
922 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
923 core file into buffer READBUF with length LEN. Return the number of bytes read
924 (zero indicates failure).
925 failed, otherwise, return the red length of READBUF. */
927 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
929 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
930 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
931 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
933 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
934 libraries list from core file into buffer READBUF with length LEN.
935 Return the number of bytes read (zero indicates failure). */
937 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
939 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
940 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
941 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
943 /* How the core target converts a PTID from a core file to a string. */
945 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
947 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
948 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
949 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
951 /* How the core target extracts the name of a thread from a core file. */
953 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
955 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
956 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
957 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
959 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
960 from core file into buffer READBUF with length LEN. Return the number
961 of bytes read (zero indicates EOF, a negative value indicates failure). */
963 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
965 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
966 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
967 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
969 /* BFD target to use when generating a core file. */
971 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
973 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
974 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
976 /* If the elements of C++ vtables are in-place function descriptors rather
977 than normal function pointers (which may point to code or a descriptor),
980 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
981 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
983 /* Set if the least significant bit of the delta is used instead of the least
984 significant bit of the pfn for pointers to virtual member functions. */
986 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
987 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
989 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
991 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
992 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
993 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
995 /* The maximum length of an instruction on this architecture in bytes. */
997 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
999 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1000 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1002 /* Copy the instruction at FROM to TO, and make any adjustments
1003 necessary to single-step it at that address.
1005 REGS holds the state the thread's registers will have before
1006 executing the copied instruction; the PC in REGS will refer to FROM,
1007 not the copy at TO. The caller should update it to point at TO later.
1009 Return a pointer to data of the architecture's choice to be passed
1010 to gdbarch_displaced_step_fixup.
1012 For a general explanation of displaced stepping and how GDB uses it,
1013 see the comments in infrun.c.
1015 The TO area is only guaranteed to have space for
1016 gdbarch_max_insn_length (arch) bytes, so this function must not
1017 write more bytes than that to that area.
1019 If you do not provide this function, GDB assumes that the
1020 architecture does not support displaced stepping.
1022 If the instruction cannot execute out of line, return NULL. The
1023 core falls back to stepping past the instruction in-line instead in
1026 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1028 typedef displaced_step_closure_up (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1029 extern displaced_step_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1030 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1032 /* Return true if GDB should use hardware single-stepping to execute
1033 the displaced instruction identified by CLOSURE. If false,
1034 GDB will simply restart execution at the displaced instruction
1035 location, and it is up to the target to ensure GDB will receive
1036 control again (e.g. by placing a software breakpoint instruction
1037 into the displaced instruction buffer).
1039 The default implementation returns false on all targets that
1040 provide a gdbarch_software_single_step routine, and true otherwise. */
1042 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1043 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1044 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1046 /* Fix up the state resulting from successfully single-stepping a
1047 displaced instruction, to give the result we would have gotten from
1048 stepping the instruction in its original location.
1050 REGS is the register state resulting from single-stepping the
1051 displaced instruction.
1053 CLOSURE is the result from the matching call to
1054 gdbarch_displaced_step_copy_insn.
1056 If you provide gdbarch_displaced_step_copy_insn.but not this
1057 function, then GDB assumes that no fixup is needed after
1058 single-stepping the instruction.
1060 For a general explanation of displaced stepping and how GDB uses it,
1061 see the comments in infrun.c. */
1063 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1065 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1066 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1067 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1069 /* Return the address of an appropriate place to put displaced
1070 instructions while we step over them. There need only be one such
1071 place, since we're only stepping one thread over a breakpoint at a
1074 For a general explanation of displaced stepping and how GDB uses it,
1075 see the comments in infrun.c. */
1077 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
1078 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
1079 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1081 /* Relocate an instruction to execute at a different address. OLDLOC
1082 is the address in the inferior memory where the instruction to
1083 relocate is currently at. On input, TO points to the destination
1084 where we want the instruction to be copied (and possibly adjusted)
1085 to. On output, it points to one past the end of the resulting
1086 instruction(s). The effect of executing the instruction at TO shall
1087 be the same as if executing it at FROM. For example, call
1088 instructions that implicitly push the return address on the stack
1089 should be adjusted to return to the instruction after OLDLOC;
1090 relative branches, and other PC-relative instructions need the
1091 offset adjusted; etc. */
1093 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1095 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1096 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1097 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1099 /* Refresh overlay mapped state for section OSECT. */
1101 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1103 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1104 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1105 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1107 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1109 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1110 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1111 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1113 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1115 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1116 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1118 /* Parse the instruction at ADDR storing in the record execution log
1119 the registers REGCACHE and memory ranges that will be affected when
1120 the instruction executes, along with their current values.
1121 Return -1 if something goes wrong, 0 otherwise. */
1123 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1125 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1126 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1127 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1129 /* Save process state after a signal.
1130 Return -1 if something goes wrong, 0 otherwise. */
1132 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1134 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1135 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1136 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1138 /* Signal translation: translate inferior's signal (target's) number
1139 into GDB's representation. The implementation of this method must
1140 be host independent. IOW, don't rely on symbols of the NAT_FILE
1141 header (the nm-*.h files), the host <signal.h> header, or similar
1142 headers. This is mainly used when cross-debugging core files ---
1143 "Live" targets hide the translation behind the target interface
1144 (target_wait, target_resume, etc.). */
1146 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1148 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1149 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1150 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1152 /* Signal translation: translate the GDB's internal signal number into
1153 the inferior's signal (target's) representation. The implementation
1154 of this method must be host independent. IOW, don't rely on symbols
1155 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1156 header, or similar headers.
1157 Return the target signal number if found, or -1 if the GDB internal
1158 signal number is invalid. */
1160 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1162 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1163 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1164 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1166 /* Extra signal info inspection.
1168 Return a type suitable to inspect extra signal information. */
1170 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1172 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1173 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1174 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1176 /* Record architecture-specific information from the symbol table. */
1178 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1180 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1181 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1182 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1184 /* Function for the 'catch syscall' feature.
1185 Get architecture-specific system calls information from registers. */
1187 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1189 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1190 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1191 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1193 /* The filename of the XML syscall for this architecture. */
1195 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1196 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1198 /* Information about system calls from this architecture */
1200 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1201 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1203 /* SystemTap related fields and functions.
1204 A NULL-terminated array of prefixes used to mark an integer constant
1205 on the architecture's assembly.
1206 For example, on x86 integer constants are written as:
1208 $10 ;; integer constant 10
1210 in this case, this prefix would be the character `$'. */
1212 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1213 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1215 /* A NULL-terminated array of suffixes used to mark an integer constant
1216 on the architecture's assembly. */
1218 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1219 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1221 /* A NULL-terminated array of prefixes used to mark a register name on
1222 the architecture's assembly.
1223 For example, on x86 the register name is written as:
1225 %eax ;; register eax
1227 in this case, this prefix would be the character `%'. */
1229 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1230 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1232 /* A NULL-terminated array of suffixes used to mark a register name on
1233 the architecture's assembly. */
1235 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1236 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1238 /* A NULL-terminated array of prefixes used to mark a register
1239 indirection on the architecture's assembly.
1240 For example, on x86 the register indirection is written as:
1242 (%eax) ;; indirecting eax
1244 in this case, this prefix would be the charater `('.
1246 Please note that we use the indirection prefix also for register
1247 displacement, e.g., `4(%eax)' on x86. */
1249 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1250 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1252 /* A NULL-terminated array of suffixes used to mark a register
1253 indirection on the architecture's assembly.
1254 For example, on x86 the register indirection is written as:
1256 (%eax) ;; indirecting eax
1258 in this case, this prefix would be the charater `)'.
1260 Please note that we use the indirection suffix also for register
1261 displacement, e.g., `4(%eax)' on x86. */
1263 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1264 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1266 /* Prefix(es) used to name a register using GDB's nomenclature.
1268 For example, on PPC a register is represented by a number in the assembly
1269 language (e.g., `10' is the 10th general-purpose register). However,
1270 inside GDB this same register has an `r' appended to its name, so the 10th
1271 register would be represented as `r10' internally. */
1273 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1274 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1276 /* Suffix used to name a register using GDB's nomenclature. */
1278 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1279 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1281 /* Check if S is a single operand.
1283 Single operands can be:
1284 - Literal integers, e.g. `$10' on x86
1285 - Register access, e.g. `%eax' on x86
1286 - Register indirection, e.g. `(%eax)' on x86
1287 - Register displacement, e.g. `4(%eax)' on x86
1289 This function should check for these patterns on the string
1290 and return 1 if some were found, or zero otherwise. Please try to match
1291 as much info as you can from the string, i.e., if you have to match
1292 something like `(%', do not match just the `('. */
1294 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1296 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1297 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1298 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1300 /* Function used to handle a "special case" in the parser.
1302 A "special case" is considered to be an unknown token, i.e., a token
1303 that the parser does not know how to parse. A good example of special
1304 case would be ARM's register displacement syntax:
1306 [R0, #4] ;; displacing R0 by 4
1308 Since the parser assumes that a register displacement is of the form:
1310 <number> <indirection_prefix> <register_name> <indirection_suffix>
1312 it means that it will not be able to recognize and parse this odd syntax.
1313 Therefore, we should add a special case function that will handle this token.
1315 This function should generate the proper expression form of the expression
1316 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1317 and so on). It should also return 1 if the parsing was successful, or zero
1318 if the token was not recognized as a special token (in this case, returning
1319 zero means that the special parser is deferring the parsing to the generic
1320 parser), and should advance the buffer pointer (p->arg). */
1322 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1324 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1325 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1326 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1328 /* Perform arch-dependent adjustments to a register name.
1330 In very specific situations, it may be necessary for the register
1331 name present in a SystemTap probe's argument to be handled in a
1332 special way. For example, on i386, GCC may over-optimize the
1333 register allocation and use smaller registers than necessary. In
1334 such cases, the client that is reading and evaluating the SystemTap
1335 probe (ourselves) will need to actually fetch values from the wider
1336 version of the register in question.
1338 To illustrate the example, consider the following probe argument
1343 This argument says that its value can be found at the %ax register,
1344 which is a 16-bit register. However, the argument's prefix says
1345 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1346 this case, GDB should actually fetch the probe's value from register
1347 %eax, not %ax. In this scenario, this function would actually
1348 replace the register name from %ax to %eax.
1350 The rationale for this can be found at PR breakpoints/24541. */
1352 extern int gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1354 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1355 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1356 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1358 /* DTrace related functions.
1359 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1360 NARG must be >= 0. */
1362 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1364 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1365 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1366 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1368 /* True if the given ADDR does not contain the instruction sequence
1369 corresponding to a disabled DTrace is-enabled probe. */
1371 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1373 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1374 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1375 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1377 /* Enable a DTrace is-enabled probe at ADDR. */
1379 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1381 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1382 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1383 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1385 /* Disable a DTrace is-enabled probe at ADDR. */
1387 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1389 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1390 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1391 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1393 /* True if the list of shared libraries is one and only for all
1394 processes, as opposed to a list of shared libraries per inferior.
1395 This usually means that all processes, although may or may not share
1396 an address space, will see the same set of symbols at the same
1399 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1400 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1402 /* On some targets, even though each inferior has its own private
1403 address space, the debug interface takes care of making breakpoints
1404 visible to all address spaces automatically. For such cases,
1405 this property should be set to true. */
1407 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1408 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1410 /* True if inferiors share an address space (e.g., uClinux). */
1412 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1413 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1414 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1416 /* True if a fast tracepoint can be set at an address. */
1418 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1419 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1420 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1422 /* Guess register state based on tracepoint location. Used for tracepoints
1423 where no registers have been collected, but there's only one location,
1424 allowing us to guess the PC value, and perhaps some other registers.
1425 On entry, regcache has all registers marked as unavailable. */
1427 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1428 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1429 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1431 /* Return the "auto" target charset. */
1433 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1434 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1435 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1437 /* Return the "auto" target wide charset. */
1439 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1440 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1441 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1443 /* If non-empty, this is a file extension that will be opened in place
1444 of the file extension reported by the shared library list.
1446 This is most useful for toolchains that use a post-linker tool,
1447 where the names of the files run on the target differ in extension
1448 compared to the names of the files GDB should load for debug info. */
1450 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1451 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1453 /* If true, the target OS has DOS-based file system semantics. That
1454 is, absolute paths include a drive name, and the backslash is
1455 considered a directory separator. */
1457 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1458 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1460 /* Generate bytecodes to collect the return address in a frame.
1461 Since the bytecodes run on the target, possibly with GDB not even
1462 connected, the full unwinding machinery is not available, and
1463 typically this function will issue bytecodes for one or more likely
1464 places that the return address may be found. */
1466 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1467 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1468 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1470 /* Implement the "info proc" command. */
1472 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1474 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1475 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1476 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1478 /* Implement the "info proc" command for core files. Noe that there
1479 are two "info_proc"-like methods on gdbarch -- one for core files,
1480 one for live targets. */
1482 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1484 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1485 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1486 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1488 /* Iterate over all objfiles in the order that makes the most sense
1489 for the architecture to make global symbol searches.
1491 CB is a callback function where OBJFILE is the objfile to be searched,
1492 and CB_DATA a pointer to user-defined data (the same data that is passed
1493 when calling this gdbarch method). The iteration stops if this function
1496 CB_DATA is a pointer to some user-defined data to be passed to
1499 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1500 inspected when the symbol search was requested. */
1502 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
);
1503 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
);
1504 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
);
1506 /* Ravenscar arch-dependent ops. */
1508 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1509 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1511 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1513 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1514 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1515 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1517 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1519 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1520 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1521 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1523 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1525 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1526 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1527 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1529 /* Return true if there's a program/permanent breakpoint planted in
1530 memory at ADDRESS, return false otherwise. */
1532 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1533 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1534 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1536 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1537 Return 0 if *READPTR is already at the end of the buffer.
1538 Return -1 if there is insufficient buffer for a whole entry.
1539 Return 1 if an entry was read into *TYPEP and *VALP. */
1541 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1543 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1544 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1545 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1547 /* Print the description of a single auxv entry described by TYPE and VAL
1550 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1551 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1552 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1554 /* Find the address range of the current inferior's vsyscall/vDSO, and
1555 write it to *RANGE. If the vsyscall's length can't be determined, a
1556 range with zero length is returned. Returns true if the vsyscall is
1557 found, false otherwise. */
1559 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1560 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1561 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1563 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1564 PROT has GDB_MMAP_PROT_* bitmask format.
1565 Throw an error if it is not possible. Returned address is always valid. */
1567 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1568 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1569 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1571 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1572 Print a warning if it is not possible. */
1574 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1575 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1576 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1578 /* Return string (caller has to use xfree for it) with options for GCC
1579 to produce code for this target, typically "-m64", "-m32" or "-m31".
1580 These options are put before CU's DW_AT_producer compilation options so that
1581 they can override it. */
1583 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1584 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1585 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1587 /* Return a regular expression that matches names used by this
1588 architecture in GNU configury triplets. The result is statically
1589 allocated and must not be freed. The default implementation simply
1590 returns the BFD architecture name, which is correct in nearly every
1593 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1594 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1595 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1597 /* Return the size in 8-bit bytes of an addressable memory unit on this
1598 architecture. This corresponds to the number of 8-bit bytes associated to
1599 each address in memory. */
1601 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1602 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1603 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1605 /* Functions for allowing a target to modify its disassembler options. */
1607 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1608 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1610 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1611 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1613 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1614 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1616 /* Type alignment override method. Return the architecture specific
1617 alignment required for TYPE. If there is no special handling
1618 required for TYPE then return the value 0, GDB will then apply the
1619 default rules as laid out in gdbtypes.c:type_align. */
1621 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1622 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1623 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1625 /* Return a string containing any flags for the given PC in the given FRAME. */
1627 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1628 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1629 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1631 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1634 /* Mechanism for co-ordinating the selection of a specific
1637 GDB targets (*-tdep.c) can register an interest in a specific
1638 architecture. Other GDB components can register a need to maintain
1639 per-architecture data.
1641 The mechanisms below ensures that there is only a loose connection
1642 between the set-architecture command and the various GDB
1643 components. Each component can independently register their need
1644 to maintain architecture specific data with gdbarch.
1648 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1651 The more traditional mega-struct containing architecture specific
1652 data for all the various GDB components was also considered. Since
1653 GDB is built from a variable number of (fairly independent)
1654 components it was determined that the global aproach was not
1658 /* Register a new architectural family with GDB.
1660 Register support for the specified ARCHITECTURE with GDB. When
1661 gdbarch determines that the specified architecture has been
1662 selected, the corresponding INIT function is called.
1666 The INIT function takes two parameters: INFO which contains the
1667 information available to gdbarch about the (possibly new)
1668 architecture; ARCHES which is a list of the previously created
1669 ``struct gdbarch'' for this architecture.
1671 The INFO parameter is, as far as possible, be pre-initialized with
1672 information obtained from INFO.ABFD or the global defaults.
1674 The ARCHES parameter is a linked list (sorted most recently used)
1675 of all the previously created architures for this architecture
1676 family. The (possibly NULL) ARCHES->gdbarch can used to access
1677 values from the previously selected architecture for this
1678 architecture family.
1680 The INIT function shall return any of: NULL - indicating that it
1681 doesn't recognize the selected architecture; an existing ``struct
1682 gdbarch'' from the ARCHES list - indicating that the new
1683 architecture is just a synonym for an earlier architecture (see
1684 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1685 - that describes the selected architecture (see gdbarch_alloc()).
1687 The DUMP_TDEP function shall print out all target specific values.
1688 Care should be taken to ensure that the function works in both the
1689 multi-arch and non- multi-arch cases. */
1693 struct gdbarch
*gdbarch
;
1694 struct gdbarch_list
*next
;
1699 /* Use default: NULL (ZERO). */
1700 const struct bfd_arch_info
*bfd_arch_info
;
1702 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1703 enum bfd_endian byte_order
;
1705 enum bfd_endian byte_order_for_code
;
1707 /* Use default: NULL (ZERO). */
1710 /* Use default: NULL (ZERO). */
1713 /* Architecture-specific information. The generic form for targets
1714 that have extra requirements. */
1715 struct gdbarch_tdep_info
*tdep_info
;
1717 /* Architecture-specific target description data. Numerous targets
1718 need only this, so give them an easy way to hold it. */
1719 struct tdesc_arch_data
*tdesc_data
;
1721 /* SPU file system ID. This is a single integer, so using the
1722 generic form would only complicate code. Other targets may
1723 reuse this member if suitable. */
1727 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1728 enum gdb_osabi osabi
;
1730 /* Use default: NULL (ZERO). */
1731 const struct target_desc
*target_desc
;
1734 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1735 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1737 /* DEPRECATED - use gdbarch_register() */
1738 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1740 extern void gdbarch_register (enum bfd_architecture architecture
,
1741 gdbarch_init_ftype
*,
1742 gdbarch_dump_tdep_ftype
*);
1745 /* Return a freshly allocated, NULL terminated, array of the valid
1746 architecture names. Since architectures are registered during the
1747 _initialize phase this function only returns useful information
1748 once initialization has been completed. */
1750 extern const char **gdbarch_printable_names (void);
1753 /* Helper function. Search the list of ARCHES for a GDBARCH that
1754 matches the information provided by INFO. */
1756 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1759 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1760 basic initialization using values obtained from the INFO and TDEP
1761 parameters. set_gdbarch_*() functions are called to complete the
1762 initialization of the object. */
1764 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1767 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1768 It is assumed that the caller freeds the ``struct
1771 extern void gdbarch_free (struct gdbarch
*);
1773 /* Get the obstack owned by ARCH. */
1775 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1777 /* Helper function. Allocate memory from the ``struct gdbarch''
1778 obstack. The memory is freed when the corresponding architecture
1781 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1783 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1785 /* Duplicate STRING, returning an equivalent string that's allocated on the
1786 obstack associated with GDBARCH. The string is freed when the corresponding
1787 architecture is also freed. */
1789 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1791 /* Helper function. Force an update of the current architecture.
1793 The actual architecture selected is determined by INFO, ``(gdb) set
1794 architecture'' et.al., the existing architecture and BFD's default
1795 architecture. INFO should be initialized to zero and then selected
1796 fields should be updated.
1798 Returns non-zero if the update succeeds. */
1800 extern int gdbarch_update_p (struct gdbarch_info info
);
1803 /* Helper function. Find an architecture matching info.
1805 INFO should be initialized using gdbarch_info_init, relevant fields
1806 set, and then finished using gdbarch_info_fill.
1808 Returns the corresponding architecture, or NULL if no matching
1809 architecture was found. */
1811 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1814 /* Helper function. Set the target gdbarch to "gdbarch". */
1816 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1819 /* Register per-architecture data-pointer.
1821 Reserve space for a per-architecture data-pointer. An identifier
1822 for the reserved data-pointer is returned. That identifer should
1823 be saved in a local static variable.
1825 Memory for the per-architecture data shall be allocated using
1826 gdbarch_obstack_zalloc. That memory will be deleted when the
1827 corresponding architecture object is deleted.
1829 When a previously created architecture is re-selected, the
1830 per-architecture data-pointer for that previous architecture is
1831 restored. INIT() is not re-called.
1833 Multiple registrarants for any architecture are allowed (and
1834 strongly encouraged). */
1836 struct gdbarch_data
;
1838 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1839 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1840 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1841 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1842 extern void deprecated_set_gdbarch_data (struct gdbarch
*gdbarch
,
1843 struct gdbarch_data
*data
,
1846 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1849 /* Set the dynamic target-system-dependent parameters (architecture,
1850 byte-order, ...) using information found in the BFD. */
1852 extern void set_gdbarch_from_file (bfd
*);
1855 /* Initialize the current architecture to the "first" one we find on
1858 extern void initialize_current_architecture (void);
1860 /* gdbarch trace variable */
1861 extern unsigned int gdbarch_debug
;
1863 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1865 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1868 gdbarch_num_cooked_regs (gdbarch
*arch
)
1870 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);