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 architectures can display additional information for specific
326 UIOUT is the output stream where the handler will place information. */
328 extern int gdbarch_report_signal_info_p (struct gdbarch
*gdbarch
);
330 typedef void (gdbarch_report_signal_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
331 extern void gdbarch_report_signal_info (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
332 extern void set_gdbarch_report_signal_info (struct gdbarch
*gdbarch
, gdbarch_report_signal_info_ftype
*report_signal_info
);
334 /* GDB's standard (or well known) register numbers. These can map onto
335 a real register or a pseudo (computed) register or not be defined at
337 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
339 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
340 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
342 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
343 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
345 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
346 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
348 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
349 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
351 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
353 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
354 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
355 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
357 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
359 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
360 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
361 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
363 /* Convert from an sdb register number to an internal gdb register number. */
365 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
366 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
367 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
369 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
370 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
372 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
373 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
374 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
376 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
377 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
378 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
380 /* Return the type of a register specified by the architecture. Only
381 the register cache should call this function directly; others should
382 use "register_type". */
384 extern int gdbarch_register_type_p (struct gdbarch
*gdbarch
);
386 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
387 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
388 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
390 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
391 a dummy frame. A dummy frame is created before an inferior call,
392 the frame_id returned here must match the frame_id that was built
393 for the inferior call. Usually this means the returned frame_id's
394 stack address should match the address returned by
395 gdbarch_push_dummy_call, and the returned frame_id's code address
396 should match the address at which the breakpoint was set in the dummy
399 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
400 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
);
401 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
403 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
404 deprecated_fp_regnum. */
406 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
407 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
409 extern int gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
411 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
);
412 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
);
413 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
415 extern int gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
416 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, int call_dummy_location
);
418 extern int gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
420 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
);
421 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
);
422 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
424 /* Return true if the code of FRAME is writable. */
426 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
427 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
428 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
430 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
431 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, int regnum
, int all
);
432 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
434 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
435 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
436 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
438 extern int gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
440 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
441 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, struct frame_info
*frame
, const char *args
);
442 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
444 /* MAP a GDB RAW register number onto a simulator register number. See
445 also include/...-sim.h. */
447 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
448 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
449 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
451 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
452 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
453 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
455 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
456 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
457 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
459 /* Determine the address where a longjmp will land and save this address
460 in PC. Return nonzero on success.
462 FRAME corresponds to the longjmp frame. */
464 extern int gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
466 typedef int (gdbarch_get_longjmp_target_ftype
) (struct frame_info
*frame
, CORE_ADDR
*pc
);
467 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR
*pc
);
468 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
470 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
471 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
473 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
474 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
475 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
477 typedef int (gdbarch_register_to_value_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
478 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
);
479 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
481 typedef void (gdbarch_value_to_register_ftype
) (struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
482 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
483 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
485 /* Construct a value representing the contents of register REGNUM in
486 frame FRAME_ID, interpreted as type TYPE. The routine needs to
487 allocate and return a struct value with all value attributes
488 (but not the value contents) filled in. */
490 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
491 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
492 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
494 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
495 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
496 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
498 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
499 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
500 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
502 extern int gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
504 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
505 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
506 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
508 /* Return the return-value convention that will be used by FUNCTION
509 to return a value of type VALTYPE. FUNCTION may be NULL in which
510 case the return convention is computed based only on VALTYPE.
512 If READBUF is not NULL, extract the return value and save it in this buffer.
514 If WRITEBUF is not NULL, it contains a return value which will be
515 stored into the appropriate register. This can be used when we want
516 to force the value returned by a function (see the "return" command
519 extern int gdbarch_return_value_p (struct gdbarch
*gdbarch
);
521 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
);
522 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
);
523 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
525 /* Return true if the return value of function is stored in the first hidden
526 parameter. In theory, this feature should be language-dependent, specified
527 by language and its ABI, such as C++. Unfortunately, compiler may
528 implement it to a target-dependent feature. So that we need such hook here
529 to be aware of this in GDB. */
531 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
532 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
533 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
);
535 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
536 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
537 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
539 extern int gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
541 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
542 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
543 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
545 /* On some platforms, a single function may provide multiple entry points,
546 e.g. one that is used for function-pointer calls and a different one
547 that is used for direct function calls.
548 In order to ensure that breakpoints set on the function will trigger
549 no matter via which entry point the function is entered, a platform
550 may provide the skip_entrypoint callback. It is called with IP set
551 to the main entry point of a function (as determined by the symbol table),
552 and should return the address of the innermost entry point, where the
553 actual breakpoint needs to be set. Note that skip_entrypoint is used
554 by GDB common code even when debugging optimized code, where skip_prologue
557 extern int gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
559 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
560 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
561 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
563 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
564 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
565 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
567 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
568 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
569 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
571 /* Return the breakpoint kind for this target based on *PCPTR. */
573 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
574 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
575 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
577 /* Return the software breakpoint from KIND. KIND can have target
578 specific meaning like the Z0 kind parameter.
579 SIZE is set to the software breakpoint's length in memory. */
581 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
582 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
583 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
585 /* Return the breakpoint kind for this target based on the current
586 processor state (e.g. the current instruction mode on ARM) and the
587 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
589 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
590 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
591 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
593 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
595 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
596 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
597 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
599 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
600 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
601 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
603 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
604 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
605 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
607 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
608 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
610 /* A function can be addressed by either it's "pointer" (possibly a
611 descriptor address) or "entry point" (first executable instruction).
612 The method "convert_from_func_ptr_addr" converting the former to the
613 latter. gdbarch_deprecated_function_start_offset is being used to implement
614 a simplified subset of that functionality - the function's address
615 corresponds to the "function pointer" and the function's start
616 corresponds to the "function entry point" - and hence is redundant. */
618 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
619 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
621 /* Return the remote protocol register number associated with this
622 register. Normally the identity mapping. */
624 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
625 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
626 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
628 /* Fetch the target specific address used to represent a load module. */
630 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
632 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
633 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
634 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
636 /* Return the thread-local address at OFFSET in the thread-local
637 storage for the thread PTID and the shared library or executable
638 file given by LM_ADDR. If that block of thread-local storage hasn't
639 been allocated yet, this function may throw an error. LM_ADDR may
640 be zero for statically linked multithreaded inferiors. */
642 extern int gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
644 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
645 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
646 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
648 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
649 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
651 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
652 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
653 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
655 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
656 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
);
657 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
659 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
660 frame-base. Enable frame-base before frame-unwind. */
662 extern int gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
664 typedef int (gdbarch_frame_num_args_ftype
) (struct frame_info
*frame
);
665 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
666 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
668 extern int gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
670 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
671 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
672 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
674 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
675 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
676 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
678 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
679 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
681 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
682 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
683 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
685 /* On some machines there are bits in addresses which are not really
686 part of the address, but are used by the kernel, the hardware, etc.
687 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
688 we get a "real" address such as one would find in a symbol table.
689 This is used only for addresses of instructions, and even then I'm
690 not sure it's used in all contexts. It exists to deal with there
691 being a few stray bits in the PC which would mislead us, not as some
692 sort of generic thing to handle alignment or segmentation (it's
693 possible it should be in TARGET_READ_PC instead). */
695 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
696 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
697 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
699 /* On some machines, not all bits of an address word are significant.
700 For example, on AArch64, the top bits of an address known as the "tag"
701 are ignored by the kernel, the hardware, etc. and can be regarded as
702 additional data associated with the address. */
704 extern int gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
);
705 extern void set_gdbarch_significant_addr_bit (struct gdbarch
*gdbarch
, int significant_addr_bit
);
707 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
708 indicates if the target needs software single step. An ISA method to
711 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
712 target can single step. If not, then implement single step using breakpoints.
714 Return a vector of addresses on which the software single step
715 breakpoints should be inserted. NULL means software single step is
717 Multiple breakpoints may be inserted for some instructions such as
718 conditional branch. However, each implementation must always evaluate
719 the condition and only put the breakpoint at the branch destination if
720 the condition is true, so that we ensure forward progress when stepping
721 past a conditional branch to self. */
723 extern int gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
725 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
726 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
727 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
729 /* Return non-zero if the processor is executing a delay slot and a
730 further single-step is needed before the instruction finishes. */
732 extern int gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
734 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
735 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, struct frame_info
*frame
);
736 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
738 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
739 disassembler. Perhaps objdump can handle it? */
741 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
742 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
743 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
745 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (struct frame_info
*frame
, CORE_ADDR pc
);
746 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, struct frame_info
*frame
, CORE_ADDR pc
);
747 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
749 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
750 evaluates non-zero, this is the address where the debugger will place
751 a step-resume breakpoint to get us past the dynamic linker. */
753 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
754 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
755 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
757 /* Some systems also have trampoline code for returning from shared libs. */
759 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
760 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
761 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
763 /* Return true if PC lies inside an indirect branch thunk. */
765 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
766 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
767 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
769 /* A target might have problems with watchpoints as soon as the stack
770 frame of the current function has been destroyed. This mostly happens
771 as the first action in a function's epilogue. stack_frame_destroyed_p()
772 is defined to return a non-zero value if either the given addr is one
773 instruction after the stack destroying instruction up to the trailing
774 return instruction or if we can figure out that the stack frame has
775 already been invalidated regardless of the value of addr. Targets
776 which don't suffer from that problem could just let this functionality
779 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
780 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
781 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
783 /* Process an ELF symbol in the minimal symbol table in a backend-specific
784 way. Normally this hook is supposed to do nothing, however if required,
785 then this hook can be used to apply tranformations to symbols that are
786 considered special in some way. For example the MIPS backend uses it
787 to interpret `st_other' information to mark compressed code symbols so
788 that they can be treated in the appropriate manner in the processing of
789 the main symbol table and DWARF-2 records. */
791 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
793 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
794 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
795 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
797 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
798 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
799 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
801 /* Process a symbol in the main symbol table in a backend-specific way.
802 Normally this hook is supposed to do nothing, however if required,
803 then this hook can be used to apply tranformations to symbols that
804 are considered special in some way. This is currently used by the
805 MIPS backend to make sure compressed code symbols have the ISA bit
806 set. This in turn is needed for symbol values seen in GDB to match
807 the values used at the runtime by the program itself, for function
808 and label references. */
810 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
811 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
812 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
814 /* Adjust the address retrieved from a DWARF-2 record other than a line
815 entry in a backend-specific way. Normally this hook is supposed to
816 return the address passed unchanged, however if that is incorrect for
817 any reason, then this hook can be used to fix the address up in the
818 required manner. This is currently used by the MIPS backend to make
819 sure addresses in FDE, range records, etc. referring to compressed
820 code have the ISA bit set, matching line information and the symbol
823 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
824 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
825 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
827 /* Adjust the address updated by a line entry in a backend-specific way.
828 Normally this hook is supposed to return the address passed unchanged,
829 however in the case of inconsistencies in these records, this hook can
830 be used to fix them up in the required manner. This is currently used
831 by the MIPS backend to make sure all line addresses in compressed code
832 are presented with the ISA bit set, which is not always the case. This
833 in turn ensures breakpoint addresses are correctly matched against the
836 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
837 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
838 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
840 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
841 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
843 /* See comment in target.h about continuable, steppable and
844 non-steppable watchpoints. */
846 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
847 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
849 extern int gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
851 typedef int (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
852 extern int gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
853 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
855 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
857 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, int type_flags
);
858 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, int type_flags
);
859 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
);
861 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
862 FS are passed from the generic execute_cfa_program function. */
864 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
865 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
866 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
868 /* Return the appropriate type_flags for the supplied address class.
869 This function should return 1 if the address class was recognized and
870 type_flags was set, zero otherwise. */
872 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
874 typedef int (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
875 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, int *type_flags_ptr
);
876 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
);
878 /* Is a register in a group */
880 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
881 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, struct reggroup
*reggroup
);
882 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
884 /* Fetch the pointer to the ith function argument. */
886 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
888 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (struct frame_info
*frame
, int argi
, struct type
*type
);
889 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, struct frame_info
*frame
, int argi
, struct type
*type
);
890 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
892 /* Iterate over all supported register notes in a core file. For each
893 supported register note section, the iterator must call CB and pass
894 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
895 the supported register note sections based on the current register
896 values. Otherwise it should enumerate all supported register note
899 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
901 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
902 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
903 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
905 /* Create core file notes */
907 extern int gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
909 typedef char * (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
910 extern char * gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
911 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
913 /* Find core file memory regions */
915 extern int gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
917 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
918 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
919 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
921 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
922 core file into buffer READBUF with length LEN. Return the number of bytes read
923 (zero indicates failure).
924 failed, otherwise, return the red length of READBUF. */
926 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
928 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
929 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
930 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
932 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
933 libraries list from core file into buffer READBUF with length LEN.
934 Return the number of bytes read (zero indicates failure). */
936 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
938 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
939 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
940 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
942 /* How the core target converts a PTID from a core file to a string. */
944 extern int gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
946 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
947 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
948 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
950 /* How the core target extracts the name of a thread from a core file. */
952 extern int gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
954 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
955 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
956 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
958 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
959 from core file into buffer READBUF with length LEN. Return the number
960 of bytes read (zero indicates EOF, a negative value indicates failure). */
962 extern int gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
964 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
965 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
966 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
968 /* BFD target to use when generating a core file. */
970 extern int gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
972 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
973 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
975 /* If the elements of C++ vtables are in-place function descriptors rather
976 than normal function pointers (which may point to code or a descriptor),
979 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
980 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
982 /* Set if the least significant bit of the delta is used instead of the least
983 significant bit of the pfn for pointers to virtual member functions. */
985 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
986 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
988 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
990 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
991 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
992 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
994 /* The maximum length of an instruction on this architecture in bytes. */
996 extern int gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
998 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
999 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1001 /* Copy the instruction at FROM to TO, and make any adjustments
1002 necessary to single-step it at that address.
1004 REGS holds the state the thread's registers will have before
1005 executing the copied instruction; the PC in REGS will refer to FROM,
1006 not the copy at TO. The caller should update it to point at TO later.
1008 Return a pointer to data of the architecture's choice to be passed
1009 to gdbarch_displaced_step_fixup.
1011 For a general explanation of displaced stepping and how GDB uses it,
1012 see the comments in infrun.c.
1014 The TO area is only guaranteed to have space for
1015 gdbarch_max_insn_length (arch) bytes, so this function must not
1016 write more bytes than that to that area.
1018 If you do not provide this function, GDB assumes that the
1019 architecture does not support displaced stepping.
1021 If the instruction cannot execute out of line, return NULL. The
1022 core falls back to stepping past the instruction in-line instead in
1025 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1027 typedef displaced_step_closure_up (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1028 extern displaced_step_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1029 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1031 /* Return true if GDB should use hardware single-stepping to execute
1032 the displaced instruction identified by CLOSURE. If false,
1033 GDB will simply restart execution at the displaced instruction
1034 location, and it is up to the target to ensure GDB will receive
1035 control again (e.g. by placing a software breakpoint instruction
1036 into the displaced instruction buffer).
1038 The default implementation returns false on all targets that
1039 provide a gdbarch_software_single_step routine, and true otherwise. */
1041 typedef int (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1042 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
);
1043 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1045 /* Fix up the state resulting from successfully single-stepping a
1046 displaced instruction, to give the result we would have gotten from
1047 stepping the instruction in its original location.
1049 REGS is the register state resulting from single-stepping the
1050 displaced instruction.
1052 CLOSURE is the result from the matching call to
1053 gdbarch_displaced_step_copy_insn.
1055 If you provide gdbarch_displaced_step_copy_insn.but not this
1056 function, then GDB assumes that no fixup is needed after
1057 single-stepping the instruction.
1059 For a general explanation of displaced stepping and how GDB uses it,
1060 see the comments in infrun.c. */
1062 extern int gdbarch_displaced_step_fixup_p (struct gdbarch
*gdbarch
);
1064 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1065 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1066 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1068 /* Return the address of an appropriate place to put displaced
1069 instructions while we step over them. There need only be one such
1070 place, since we're only stepping one thread over a breakpoint at a
1073 For a general explanation of displaced stepping and how GDB uses it,
1074 see the comments in infrun.c. */
1076 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype
) (struct gdbarch
*gdbarch
);
1077 extern CORE_ADDR
gdbarch_displaced_step_location (struct gdbarch
*gdbarch
);
1078 extern void set_gdbarch_displaced_step_location (struct gdbarch
*gdbarch
, gdbarch_displaced_step_location_ftype
*displaced_step_location
);
1080 /* Relocate an instruction to execute at a different address. OLDLOC
1081 is the address in the inferior memory where the instruction to
1082 relocate is currently at. On input, TO points to the destination
1083 where we want the instruction to be copied (and possibly adjusted)
1084 to. On output, it points to one past the end of the resulting
1085 instruction(s). The effect of executing the instruction at TO shall
1086 be the same as if executing it at FROM. For example, call
1087 instructions that implicitly push the return address on the stack
1088 should be adjusted to return to the instruction after OLDLOC;
1089 relative branches, and other PC-relative instructions need the
1090 offset adjusted; etc. */
1092 extern int gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1094 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1095 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1096 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1098 /* Refresh overlay mapped state for section OSECT. */
1100 extern int gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1102 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1103 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1104 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1106 extern int gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1108 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1109 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1110 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1112 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1114 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1115 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1117 /* Parse the instruction at ADDR storing in the record execution log
1118 the registers REGCACHE and memory ranges that will be affected when
1119 the instruction executes, along with their current values.
1120 Return -1 if something goes wrong, 0 otherwise. */
1122 extern int gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1124 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1125 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1126 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1128 /* Save process state after a signal.
1129 Return -1 if something goes wrong, 0 otherwise. */
1131 extern int gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1133 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1134 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1135 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1137 /* Signal translation: translate inferior's signal (target's) number
1138 into GDB's representation. The implementation of this method must
1139 be host independent. IOW, don't rely on symbols of the NAT_FILE
1140 header (the nm-*.h files), the host <signal.h> header, or similar
1141 headers. This is mainly used when cross-debugging core files ---
1142 "Live" targets hide the translation behind the target interface
1143 (target_wait, target_resume, etc.). */
1145 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1147 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1148 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1149 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1151 /* Signal translation: translate the GDB's internal signal number into
1152 the inferior's signal (target's) representation. The implementation
1153 of this method must be host independent. IOW, don't rely on symbols
1154 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1155 header, or similar headers.
1156 Return the target signal number if found, or -1 if the GDB internal
1157 signal number is invalid. */
1159 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1161 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1162 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1163 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1165 /* Extra signal info inspection.
1167 Return a type suitable to inspect extra signal information. */
1169 extern int gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1171 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1172 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1173 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1175 /* Record architecture-specific information from the symbol table. */
1177 extern int gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1179 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1180 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1181 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1183 /* Function for the 'catch syscall' feature.
1184 Get architecture-specific system calls information from registers. */
1186 extern int gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1188 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1189 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1190 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1192 /* The filename of the XML syscall for this architecture. */
1194 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1195 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1197 /* Information about system calls from this architecture */
1199 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1200 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1202 /* SystemTap related fields and functions.
1203 A NULL-terminated array of prefixes used to mark an integer constant
1204 on the architecture's assembly.
1205 For example, on x86 integer constants are written as:
1207 $10 ;; integer constant 10
1209 in this case, this prefix would be the character `$'. */
1211 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1212 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1214 /* A NULL-terminated array of suffixes used to mark an integer constant
1215 on the architecture's assembly. */
1217 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1218 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1220 /* A NULL-terminated array of prefixes used to mark a register name on
1221 the architecture's assembly.
1222 For example, on x86 the register name is written as:
1224 %eax ;; register eax
1226 in this case, this prefix would be the character `%'. */
1228 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1229 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1231 /* A NULL-terminated array of suffixes used to mark a register name on
1232 the architecture's assembly. */
1234 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1235 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1237 /* A NULL-terminated array of prefixes used to mark a register
1238 indirection on the architecture's assembly.
1239 For example, on x86 the register indirection is written as:
1241 (%eax) ;; indirecting eax
1243 in this case, this prefix would be the charater `('.
1245 Please note that we use the indirection prefix also for register
1246 displacement, e.g., `4(%eax)' on x86. */
1248 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1249 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1251 /* A NULL-terminated array of suffixes used to mark a register
1252 indirection on the architecture's assembly.
1253 For example, on x86 the register indirection is written as:
1255 (%eax) ;; indirecting eax
1257 in this case, this prefix would be the charater `)'.
1259 Please note that we use the indirection suffix also for register
1260 displacement, e.g., `4(%eax)' on x86. */
1262 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1263 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1265 /* Prefix(es) used to name a register using GDB's nomenclature.
1267 For example, on PPC a register is represented by a number in the assembly
1268 language (e.g., `10' is the 10th general-purpose register). However,
1269 inside GDB this same register has an `r' appended to its name, so the 10th
1270 register would be represented as `r10' internally. */
1272 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1273 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1275 /* Suffix used to name a register using GDB's nomenclature. */
1277 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1278 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1280 /* Check if S is a single operand.
1282 Single operands can be:
1283 - Literal integers, e.g. `$10' on x86
1284 - Register access, e.g. `%eax' on x86
1285 - Register indirection, e.g. `(%eax)' on x86
1286 - Register displacement, e.g. `4(%eax)' on x86
1288 This function should check for these patterns on the string
1289 and return 1 if some were found, or zero otherwise. Please try to match
1290 as much info as you can from the string, i.e., if you have to match
1291 something like `(%', do not match just the `('. */
1293 extern int gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1295 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1296 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1297 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1299 /* Function used to handle a "special case" in the parser.
1301 A "special case" is considered to be an unknown token, i.e., a token
1302 that the parser does not know how to parse. A good example of special
1303 case would be ARM's register displacement syntax:
1305 [R0, #4] ;; displacing R0 by 4
1307 Since the parser assumes that a register displacement is of the form:
1309 <number> <indirection_prefix> <register_name> <indirection_suffix>
1311 it means that it will not be able to recognize and parse this odd syntax.
1312 Therefore, we should add a special case function that will handle this token.
1314 This function should generate the proper expression form of the expression
1315 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1316 and so on). It should also return 1 if the parsing was successful, or zero
1317 if the token was not recognized as a special token (in this case, returning
1318 zero means that the special parser is deferring the parsing to the generic
1319 parser), and should advance the buffer pointer (p->arg). */
1321 extern int gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1323 typedef int (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1324 extern int gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1325 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1327 /* Perform arch-dependent adjustments to a register name.
1329 In very specific situations, it may be necessary for the register
1330 name present in a SystemTap probe's argument to be handled in a
1331 special way. For example, on i386, GCC may over-optimize the
1332 register allocation and use smaller registers than necessary. In
1333 such cases, the client that is reading and evaluating the SystemTap
1334 probe (ourselves) will need to actually fetch values from the wider
1335 version of the register in question.
1337 To illustrate the example, consider the following probe argument
1342 This argument says that its value can be found at the %ax register,
1343 which is a 16-bit register. However, the argument's prefix says
1344 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1345 this case, GDB should actually fetch the probe's value from register
1346 %eax, not %ax. In this scenario, this function would actually
1347 replace the register name from %ax to %eax.
1349 The rationale for this can be found at PR breakpoints/24541. */
1351 extern int gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1353 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1354 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1355 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1357 /* DTrace related functions.
1358 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1359 NARG must be >= 0. */
1361 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1363 typedef void (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1364 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, struct expr_builder
*builder
, int narg
);
1365 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1367 /* True if the given ADDR does not contain the instruction sequence
1368 corresponding to a disabled DTrace is-enabled probe. */
1370 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1372 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1373 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1374 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1376 /* Enable a DTrace is-enabled probe at ADDR. */
1378 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1380 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1381 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1382 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1384 /* Disable a DTrace is-enabled probe at ADDR. */
1386 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1388 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1389 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1390 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1392 /* True if the list of shared libraries is one and only for all
1393 processes, as opposed to a list of shared libraries per inferior.
1394 This usually means that all processes, although may or may not share
1395 an address space, will see the same set of symbols at the same
1398 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1399 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1401 /* On some targets, even though each inferior has its own private
1402 address space, the debug interface takes care of making breakpoints
1403 visible to all address spaces automatically. For such cases,
1404 this property should be set to true. */
1406 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1407 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1409 /* True if inferiors share an address space (e.g., uClinux). */
1411 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1412 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1413 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1415 /* True if a fast tracepoint can be set at an address. */
1417 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1418 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1419 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1421 /* Guess register state based on tracepoint location. Used for tracepoints
1422 where no registers have been collected, but there's only one location,
1423 allowing us to guess the PC value, and perhaps some other registers.
1424 On entry, regcache has all registers marked as unavailable. */
1426 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1427 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1428 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1430 /* Return the "auto" target charset. */
1432 typedef const char * (gdbarch_auto_charset_ftype
) (void);
1433 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1434 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1436 /* Return the "auto" target wide charset. */
1438 typedef const char * (gdbarch_auto_wide_charset_ftype
) (void);
1439 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1440 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1442 /* If non-empty, this is a file extension that will be opened in place
1443 of the file extension reported by the shared library list.
1445 This is most useful for toolchains that use a post-linker tool,
1446 where the names of the files run on the target differ in extension
1447 compared to the names of the files GDB should load for debug info. */
1449 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1450 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1452 /* If true, the target OS has DOS-based file system semantics. That
1453 is, absolute paths include a drive name, and the backslash is
1454 considered a directory separator. */
1456 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1457 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1459 /* Generate bytecodes to collect the return address in a frame.
1460 Since the bytecodes run on the target, possibly with GDB not even
1461 connected, the full unwinding machinery is not available, and
1462 typically this function will issue bytecodes for one or more likely
1463 places that the return address may be found. */
1465 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1466 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1467 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1469 /* Implement the "info proc" command. */
1471 extern int gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1473 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1474 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1475 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1477 /* Implement the "info proc" command for core files. Noe that there
1478 are two "info_proc"-like methods on gdbarch -- one for core files,
1479 one for live targets. */
1481 extern int gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1483 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1484 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1485 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1487 /* Iterate over all objfiles in the order that makes the most sense
1488 for the architecture to make global symbol searches.
1490 CB is a callback function where OBJFILE is the objfile to be searched,
1491 and CB_DATA a pointer to user-defined data (the same data that is passed
1492 when calling this gdbarch method). The iteration stops if this function
1495 CB_DATA is a pointer to some user-defined data to be passed to
1498 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1499 inspected when the symbol search was requested. */
1501 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
);
1502 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
);
1503 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
);
1505 /* Ravenscar arch-dependent ops. */
1507 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1508 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1510 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1512 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1513 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1514 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1516 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1518 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1519 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1520 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1522 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1524 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1525 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1526 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1528 /* Return true if there's a program/permanent breakpoint planted in
1529 memory at ADDRESS, return false otherwise. */
1531 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1532 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1533 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1535 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1536 Return 0 if *READPTR is already at the end of the buffer.
1537 Return -1 if there is insufficient buffer for a whole entry.
1538 Return 1 if an entry was read into *TYPEP and *VALP. */
1540 extern int gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1542 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1543 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1544 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1546 /* Print the description of a single auxv entry described by TYPE and VAL
1549 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1550 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1551 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1553 /* Find the address range of the current inferior's vsyscall/vDSO, and
1554 write it to *RANGE. If the vsyscall's length can't be determined, a
1555 range with zero length is returned. Returns true if the vsyscall is
1556 found, false otherwise. */
1558 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1559 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1560 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1562 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1563 PROT has GDB_MMAP_PROT_* bitmask format.
1564 Throw an error if it is not possible. Returned address is always valid. */
1566 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1567 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1568 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1570 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1571 Print a warning if it is not possible. */
1573 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1574 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1575 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1577 /* Return string (caller has to use xfree for it) with options for GCC
1578 to produce code for this target, typically "-m64", "-m32" or "-m31".
1579 These options are put before CU's DW_AT_producer compilation options so that
1580 they can override it. */
1582 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1583 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1584 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1586 /* Return a regular expression that matches names used by this
1587 architecture in GNU configury triplets. The result is statically
1588 allocated and must not be freed. The default implementation simply
1589 returns the BFD architecture name, which is correct in nearly every
1592 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1593 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1594 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1596 /* Return the size in 8-bit bytes of an addressable memory unit on this
1597 architecture. This corresponds to the number of 8-bit bytes associated to
1598 each address in memory. */
1600 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1601 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1602 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1604 /* Functions for allowing a target to modify its disassembler options. */
1606 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1607 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1609 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1610 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1612 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1613 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1615 /* Type alignment override method. Return the architecture specific
1616 alignment required for TYPE. If there is no special handling
1617 required for TYPE then return the value 0, GDB will then apply the
1618 default rules as laid out in gdbtypes.c:type_align. */
1620 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1621 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1622 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1624 /* Return a string containing any flags for the given PC in the given FRAME. */
1626 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info
*frame
, CORE_ADDR pc
);
1627 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info
*frame
, CORE_ADDR pc
);
1628 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1630 /* Read core file mappings */
1632 typedef void (gdbarch_read_core_file_mappings_ftype
) (struct gdbarch
*gdbarch
, struct bfd
*cbfd
,gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
,gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
, const void *other
)> loop_cb
);
1633 extern void gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, struct bfd
*cbfd
,gdb::function_view
<void (ULONGEST count
)> pre_loop_cb
,gdb::function_view
<void (int num
, ULONGEST start
, ULONGEST end
, ULONGEST file_ofs
, const char *filename
, const void *other
)> loop_cb
);
1634 extern void set_gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, gdbarch_read_core_file_mappings_ftype
*read_core_file_mappings
);
1636 extern struct gdbarch_tdep
*gdbarch_tdep (struct gdbarch
*gdbarch
);
1639 /* Mechanism for co-ordinating the selection of a specific
1642 GDB targets (*-tdep.c) can register an interest in a specific
1643 architecture. Other GDB components can register a need to maintain
1644 per-architecture data.
1646 The mechanisms below ensures that there is only a loose connection
1647 between the set-architecture command and the various GDB
1648 components. Each component can independently register their need
1649 to maintain architecture specific data with gdbarch.
1653 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1656 The more traditional mega-struct containing architecture specific
1657 data for all the various GDB components was also considered. Since
1658 GDB is built from a variable number of (fairly independent)
1659 components it was determined that the global aproach was not
1663 /* Register a new architectural family with GDB.
1665 Register support for the specified ARCHITECTURE with GDB. When
1666 gdbarch determines that the specified architecture has been
1667 selected, the corresponding INIT function is called.
1671 The INIT function takes two parameters: INFO which contains the
1672 information available to gdbarch about the (possibly new)
1673 architecture; ARCHES which is a list of the previously created
1674 ``struct gdbarch'' for this architecture.
1676 The INFO parameter is, as far as possible, be pre-initialized with
1677 information obtained from INFO.ABFD or the global defaults.
1679 The ARCHES parameter is a linked list (sorted most recently used)
1680 of all the previously created architures for this architecture
1681 family. The (possibly NULL) ARCHES->gdbarch can used to access
1682 values from the previously selected architecture for this
1683 architecture family.
1685 The INIT function shall return any of: NULL - indicating that it
1686 doesn't recognize the selected architecture; an existing ``struct
1687 gdbarch'' from the ARCHES list - indicating that the new
1688 architecture is just a synonym for an earlier architecture (see
1689 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1690 - that describes the selected architecture (see gdbarch_alloc()).
1692 The DUMP_TDEP function shall print out all target specific values.
1693 Care should be taken to ensure that the function works in both the
1694 multi-arch and non- multi-arch cases. */
1698 struct gdbarch
*gdbarch
;
1699 struct gdbarch_list
*next
;
1704 /* Use default: NULL (ZERO). */
1705 const struct bfd_arch_info
*bfd_arch_info
;
1707 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1708 enum bfd_endian byte_order
;
1710 enum bfd_endian byte_order_for_code
;
1712 /* Use default: NULL (ZERO). */
1715 /* Use default: NULL (ZERO). */
1718 /* Architecture-specific information. The generic form for targets
1719 that have extra requirements. */
1720 struct gdbarch_tdep_info
*tdep_info
;
1722 /* Architecture-specific target description data. Numerous targets
1723 need only this, so give them an easy way to hold it. */
1724 struct tdesc_arch_data
*tdesc_data
;
1726 /* SPU file system ID. This is a single integer, so using the
1727 generic form would only complicate code. Other targets may
1728 reuse this member if suitable. */
1732 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1733 enum gdb_osabi osabi
;
1735 /* Use default: NULL (ZERO). */
1736 const struct target_desc
*target_desc
;
1739 typedef struct gdbarch
*(gdbarch_init_ftype
) (struct gdbarch_info info
, struct gdbarch_list
*arches
);
1740 typedef void (gdbarch_dump_tdep_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1742 /* DEPRECATED - use gdbarch_register() */
1743 extern void register_gdbarch_init (enum bfd_architecture architecture
, gdbarch_init_ftype
*);
1745 extern void gdbarch_register (enum bfd_architecture architecture
,
1746 gdbarch_init_ftype
*,
1747 gdbarch_dump_tdep_ftype
*);
1750 /* Return a freshly allocated, NULL terminated, array of the valid
1751 architecture names. Since architectures are registered during the
1752 _initialize phase this function only returns useful information
1753 once initialization has been completed. */
1755 extern const char **gdbarch_printable_names (void);
1758 /* Helper function. Search the list of ARCHES for a GDBARCH that
1759 matches the information provided by INFO. */
1761 extern struct gdbarch_list
*gdbarch_list_lookup_by_info (struct gdbarch_list
*arches
, const struct gdbarch_info
*info
);
1764 /* Helper function. Create a preliminary ``struct gdbarch''. Perform
1765 basic initialization using values obtained from the INFO and TDEP
1766 parameters. set_gdbarch_*() functions are called to complete the
1767 initialization of the object. */
1769 extern struct gdbarch
*gdbarch_alloc (const struct gdbarch_info
*info
, struct gdbarch_tdep
*tdep
);
1772 /* Helper function. Free a partially-constructed ``struct gdbarch''.
1773 It is assumed that the caller freeds the ``struct
1776 extern void gdbarch_free (struct gdbarch
*);
1778 /* Get the obstack owned by ARCH. */
1780 extern obstack
*gdbarch_obstack (gdbarch
*arch
);
1782 /* Helper function. Allocate memory from the ``struct gdbarch''
1783 obstack. The memory is freed when the corresponding architecture
1786 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1788 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1790 /* Duplicate STRING, returning an equivalent string that's allocated on the
1791 obstack associated with GDBARCH. The string is freed when the corresponding
1792 architecture is also freed. */
1794 extern char *gdbarch_obstack_strdup (struct gdbarch
*arch
, const char *string
);
1796 /* Helper function. Force an update of the current architecture.
1798 The actual architecture selected is determined by INFO, ``(gdb) set
1799 architecture'' et.al., the existing architecture and BFD's default
1800 architecture. INFO should be initialized to zero and then selected
1801 fields should be updated.
1803 Returns non-zero if the update succeeds. */
1805 extern int gdbarch_update_p (struct gdbarch_info info
);
1808 /* Helper function. Find an architecture matching info.
1810 INFO should be initialized using gdbarch_info_init, relevant fields
1811 set, and then finished using gdbarch_info_fill.
1813 Returns the corresponding architecture, or NULL if no matching
1814 architecture was found. */
1816 extern struct gdbarch
*gdbarch_find_by_info (struct gdbarch_info info
);
1819 /* Helper function. Set the target gdbarch to "gdbarch". */
1821 extern void set_target_gdbarch (struct gdbarch
*gdbarch
);
1824 /* Register per-architecture data-pointer.
1826 Reserve space for a per-architecture data-pointer. An identifier
1827 for the reserved data-pointer is returned. That identifer should
1828 be saved in a local static variable.
1830 Memory for the per-architecture data shall be allocated using
1831 gdbarch_obstack_zalloc. That memory will be deleted when the
1832 corresponding architecture object is deleted.
1834 When a previously created architecture is re-selected, the
1835 per-architecture data-pointer for that previous architecture is
1836 restored. INIT() is not re-called.
1838 Multiple registrarants for any architecture are allowed (and
1839 strongly encouraged). */
1841 struct gdbarch_data
;
1843 typedef void *(gdbarch_data_pre_init_ftype
) (struct obstack
*obstack
);
1844 extern struct gdbarch_data
*gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype
*init
);
1845 typedef void *(gdbarch_data_post_init_ftype
) (struct gdbarch
*gdbarch
);
1846 extern struct gdbarch_data
*gdbarch_data_register_post_init (gdbarch_data_post_init_ftype
*init
);
1848 extern void *gdbarch_data (struct gdbarch
*gdbarch
, struct gdbarch_data
*);
1851 /* Set the dynamic target-system-dependent parameters (architecture,
1852 byte-order, ...) using information found in the BFD. */
1854 extern void set_gdbarch_from_file (bfd
*);
1857 /* Initialize the current architecture to the "first" one we find on
1860 extern void initialize_current_architecture (void);
1862 /* gdbarch trace variable */
1863 extern unsigned int gdbarch_debug
;
1865 extern void gdbarch_dump (struct gdbarch
*gdbarch
, struct ui_file
*file
);
1867 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1870 gdbarch_num_cooked_regs (gdbarch
*arch
)
1872 return gdbarch_num_regs (arch
) + gdbarch_num_pseudo_regs (arch
);