1 /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2023 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 /* To regenerate this file, run:
29 /* The following are pre-initialized by GDBARCH. */
31 extern const struct bfd_arch_info
* gdbarch_bfd_arch_info (struct gdbarch
*gdbarch
);
32 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
34 extern enum bfd_endian
gdbarch_byte_order (struct gdbarch
*gdbarch
);
35 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
37 extern enum bfd_endian
gdbarch_byte_order_for_code (struct gdbarch
*gdbarch
);
38 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
40 extern enum gdb_osabi
gdbarch_osabi (struct gdbarch
*gdbarch
);
41 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
43 extern const struct target_desc
* gdbarch_target_desc (struct gdbarch
*gdbarch
);
44 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
47 /* The following are initialized by the target dependent code. */
49 /* Number of bits in a short or unsigned short for the target machine. */
51 extern int gdbarch_short_bit (struct gdbarch
*gdbarch
);
52 extern void set_gdbarch_short_bit (struct gdbarch
*gdbarch
, int short_bit
);
54 /* Number of bits in an int or unsigned int for the target machine. */
56 extern int gdbarch_int_bit (struct gdbarch
*gdbarch
);
57 extern void set_gdbarch_int_bit (struct gdbarch
*gdbarch
, int int_bit
);
59 /* Number of bits in a long or unsigned long for the target machine. */
61 extern int gdbarch_long_bit (struct gdbarch
*gdbarch
);
62 extern void set_gdbarch_long_bit (struct gdbarch
*gdbarch
, int long_bit
);
64 /* Number of bits in a long long or unsigned long long for the target
67 extern int gdbarch_long_long_bit (struct gdbarch
*gdbarch
);
68 extern void set_gdbarch_long_long_bit (struct gdbarch
*gdbarch
, int long_long_bit
);
70 /* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and
71 "long double". These bit/format pairs should eventually be combined
72 into a single object. For the moment, just initialize them as a pair.
73 Each format describes both the big and little endian layouts (if
76 extern int gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
);
77 extern void set_gdbarch_bfloat16_bit (struct gdbarch
*gdbarch
, int bfloat16_bit
);
79 extern const struct floatformat
** gdbarch_bfloat16_format (struct gdbarch
*gdbarch
);
80 extern void set_gdbarch_bfloat16_format (struct gdbarch
*gdbarch
, const struct floatformat
** bfloat16_format
);
82 extern int gdbarch_half_bit (struct gdbarch
*gdbarch
);
83 extern void set_gdbarch_half_bit (struct gdbarch
*gdbarch
, int half_bit
);
85 extern const struct floatformat
** gdbarch_half_format (struct gdbarch
*gdbarch
);
86 extern void set_gdbarch_half_format (struct gdbarch
*gdbarch
, const struct floatformat
** half_format
);
88 extern int gdbarch_float_bit (struct gdbarch
*gdbarch
);
89 extern void set_gdbarch_float_bit (struct gdbarch
*gdbarch
, int float_bit
);
91 extern const struct floatformat
** gdbarch_float_format (struct gdbarch
*gdbarch
);
92 extern void set_gdbarch_float_format (struct gdbarch
*gdbarch
, const struct floatformat
** float_format
);
94 extern int gdbarch_double_bit (struct gdbarch
*gdbarch
);
95 extern void set_gdbarch_double_bit (struct gdbarch
*gdbarch
, int double_bit
);
97 extern const struct floatformat
** gdbarch_double_format (struct gdbarch
*gdbarch
);
98 extern void set_gdbarch_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** double_format
);
100 extern int gdbarch_long_double_bit (struct gdbarch
*gdbarch
);
101 extern void set_gdbarch_long_double_bit (struct gdbarch
*gdbarch
, int long_double_bit
);
103 extern const struct floatformat
** gdbarch_long_double_format (struct gdbarch
*gdbarch
);
104 extern void set_gdbarch_long_double_format (struct gdbarch
*gdbarch
, const struct floatformat
** long_double_format
);
106 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type
107 starting with C++11. */
109 extern int gdbarch_wchar_bit (struct gdbarch
*gdbarch
);
110 extern void set_gdbarch_wchar_bit (struct gdbarch
*gdbarch
, int wchar_bit
);
112 /* One if `wchar_t' is signed, zero if unsigned. */
114 extern int gdbarch_wchar_signed (struct gdbarch
*gdbarch
);
115 extern void set_gdbarch_wchar_signed (struct gdbarch
*gdbarch
, int wchar_signed
);
117 /* Returns the floating-point format to be used for values of length LENGTH.
118 NAME, if non-NULL, is the type name, which may be used to distinguish
119 different target formats of the same length. */
121 typedef const struct floatformat
** (gdbarch_floatformat_for_type_ftype
) (struct gdbarch
*gdbarch
, const char *name
, int length
);
122 extern const struct floatformat
** gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, const char *name
, int length
);
123 extern void set_gdbarch_floatformat_for_type (struct gdbarch
*gdbarch
, gdbarch_floatformat_for_type_ftype
*floatformat_for_type
);
125 /* For most targets, a pointer on the target and its representation as an
126 address in GDB have the same size and "look the same". For such a
127 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
128 / addr_bit will be set from it.
130 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
131 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
132 gdbarch_address_to_pointer as well.
134 ptr_bit is the size of a pointer on the target */
136 extern int gdbarch_ptr_bit (struct gdbarch
*gdbarch
);
137 extern void set_gdbarch_ptr_bit (struct gdbarch
*gdbarch
, int ptr_bit
);
139 /* addr_bit is the size of a target address as represented in gdb */
141 extern int gdbarch_addr_bit (struct gdbarch
*gdbarch
);
142 extern void set_gdbarch_addr_bit (struct gdbarch
*gdbarch
, int addr_bit
);
144 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
145 info. For .debug_frame FDEs, this is supposed to be the target address
146 size from the associated CU header, and which is equivalent to the
147 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
148 Unfortunately there is no good way to determine this value. Therefore
149 dwarf2_addr_size simply defaults to the target pointer size.
151 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
152 defined using the target's pointer size so far.
154 Note that dwarf2_addr_size only needs to be redefined by a target if the
155 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
156 and if Dwarf versions < 4 need to be supported. */
158 extern int gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
);
159 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch
*gdbarch
, int dwarf2_addr_size
);
161 /* One if `char' acts like `signed char', zero if `unsigned char'. */
163 extern int gdbarch_char_signed (struct gdbarch
*gdbarch
);
164 extern void set_gdbarch_char_signed (struct gdbarch
*gdbarch
, int char_signed
);
166 extern bool gdbarch_read_pc_p (struct gdbarch
*gdbarch
);
168 typedef CORE_ADDR (gdbarch_read_pc_ftype
) (readable_regcache
*regcache
);
169 extern CORE_ADDR
gdbarch_read_pc (struct gdbarch
*gdbarch
, readable_regcache
*regcache
);
170 extern void set_gdbarch_read_pc (struct gdbarch
*gdbarch
, gdbarch_read_pc_ftype
*read_pc
);
172 extern bool gdbarch_write_pc_p (struct gdbarch
*gdbarch
);
174 typedef void (gdbarch_write_pc_ftype
) (struct regcache
*regcache
, CORE_ADDR val
);
175 extern void gdbarch_write_pc (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR val
);
176 extern void set_gdbarch_write_pc (struct gdbarch
*gdbarch
, gdbarch_write_pc_ftype
*write_pc
);
178 /* Function for getting target's idea of a frame pointer. FIXME: GDB's
179 whole scheme for dealing with "frames" and "frame pointers" needs a
180 serious shakedown. */
182 typedef void (gdbarch_virtual_frame_pointer_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
183 extern void gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, CORE_ADDR pc
, int *frame_regnum
, LONGEST
*frame_offset
);
184 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch
*gdbarch
, gdbarch_virtual_frame_pointer_ftype
*virtual_frame_pointer
);
186 extern bool gdbarch_pseudo_register_read_p (struct gdbarch
*gdbarch
);
188 typedef enum register_status (gdbarch_pseudo_register_read_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
189 extern enum register_status
gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
, gdb_byte
*buf
);
190 extern void set_gdbarch_pseudo_register_read (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_ftype
*pseudo_register_read
);
192 /* Read a register into a new struct value. If the register is wholly
193 or partly unavailable, this should call mark_value_bytes_unavailable
194 as appropriate. If this is defined, then pseudo_register_read will
197 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch
*gdbarch
);
199 typedef struct value
* (gdbarch_pseudo_register_read_value_ftype
) (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
200 extern struct value
* gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, readable_regcache
*regcache
, int cookednum
);
201 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_read_value_ftype
*pseudo_register_read_value
);
203 extern bool gdbarch_pseudo_register_write_p (struct gdbarch
*gdbarch
);
205 typedef void (gdbarch_pseudo_register_write_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
206 extern void gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, struct regcache
*regcache
, int cookednum
, const gdb_byte
*buf
);
207 extern void set_gdbarch_pseudo_register_write (struct gdbarch
*gdbarch
, gdbarch_pseudo_register_write_ftype
*pseudo_register_write
);
209 extern int gdbarch_num_regs (struct gdbarch
*gdbarch
);
210 extern void set_gdbarch_num_regs (struct gdbarch
*gdbarch
, int num_regs
);
212 /* This macro gives the number of pseudo-registers that live in the
213 register namespace but do not get fetched or stored on the target.
214 These pseudo-registers may be aliases for other registers,
215 combinations of other registers, or they may be computed by GDB. */
217 extern int gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
);
218 extern void set_gdbarch_num_pseudo_regs (struct gdbarch
*gdbarch
, int num_pseudo_regs
);
220 /* Assemble agent expression bytecode to collect pseudo-register REG.
221 Return -1 if something goes wrong, 0 otherwise. */
223 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch
*gdbarch
);
225 typedef int (gdbarch_ax_pseudo_register_collect_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
226 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
227 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_collect_ftype
*ax_pseudo_register_collect
);
229 /* Assemble agent expression bytecode to push the value of pseudo-register
230 REG on the interpreter stack.
231 Return -1 if something goes wrong, 0 otherwise. */
233 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch
*gdbarch
);
235 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
236 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, int reg
);
237 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch
*gdbarch
, gdbarch_ax_pseudo_register_push_stack_ftype
*ax_pseudo_register_push_stack
);
239 /* Some architectures can display additional information for specific
241 UIOUT is the output stream where the handler will place information. */
243 extern bool gdbarch_report_signal_info_p (struct gdbarch
*gdbarch
);
245 typedef void (gdbarch_report_signal_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
246 extern void gdbarch_report_signal_info (struct gdbarch
*gdbarch
, struct ui_out
*uiout
, enum gdb_signal siggnal
);
247 extern void set_gdbarch_report_signal_info (struct gdbarch
*gdbarch
, gdbarch_report_signal_info_ftype
*report_signal_info
);
249 /* GDB's standard (or well known) register numbers. These can map onto
250 a real register or a pseudo (computed) register or not be defined at
252 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
254 extern int gdbarch_sp_regnum (struct gdbarch
*gdbarch
);
255 extern void set_gdbarch_sp_regnum (struct gdbarch
*gdbarch
, int sp_regnum
);
257 extern int gdbarch_pc_regnum (struct gdbarch
*gdbarch
);
258 extern void set_gdbarch_pc_regnum (struct gdbarch
*gdbarch
, int pc_regnum
);
260 extern int gdbarch_ps_regnum (struct gdbarch
*gdbarch
);
261 extern void set_gdbarch_ps_regnum (struct gdbarch
*gdbarch
, int ps_regnum
);
263 extern int gdbarch_fp0_regnum (struct gdbarch
*gdbarch
);
264 extern void set_gdbarch_fp0_regnum (struct gdbarch
*gdbarch
, int fp0_regnum
);
266 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
268 typedef int (gdbarch_stab_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int stab_regnr
);
269 extern int gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, int stab_regnr
);
270 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_stab_reg_to_regnum_ftype
*stab_reg_to_regnum
);
272 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
274 typedef int (gdbarch_ecoff_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int ecoff_regnr
);
275 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, int ecoff_regnr
);
276 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_ecoff_reg_to_regnum_ftype
*ecoff_reg_to_regnum
);
278 /* Convert from an sdb register number to an internal gdb register number. */
280 typedef int (gdbarch_sdb_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int sdb_regnr
);
281 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, int sdb_regnr
);
282 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_sdb_reg_to_regnum_ftype
*sdb_reg_to_regnum
);
284 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
285 Return -1 for bad REGNUM. Note: Several targets get this wrong. */
287 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype
) (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
288 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, int dwarf2_regnr
);
289 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch
*gdbarch
, gdbarch_dwarf2_reg_to_regnum_ftype
*dwarf2_reg_to_regnum
);
291 /* Return the name of register REGNR for the specified architecture.
292 REGNR can be any value greater than, or equal to zero, and less than
293 'gdbarch_num_cooked_regs (GDBARCH)'. If REGNR is not supported for
294 GDBARCH, then this function will return an empty string, this function
295 should never return nullptr. */
297 typedef const char * (gdbarch_register_name_ftype
) (struct gdbarch
*gdbarch
, int regnr
);
298 extern const char * gdbarch_register_name (struct gdbarch
*gdbarch
, int regnr
);
299 extern void set_gdbarch_register_name (struct gdbarch
*gdbarch
, gdbarch_register_name_ftype
*register_name
);
301 /* Return the type of a register specified by the architecture. Only
302 the register cache should call this function directly; others should
303 use "register_type". */
305 typedef struct type
* (gdbarch_register_type_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
306 extern struct type
* gdbarch_register_type (struct gdbarch
*gdbarch
, int reg_nr
);
307 extern void set_gdbarch_register_type (struct gdbarch
*gdbarch
, gdbarch_register_type_ftype
*register_type
);
309 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
310 a dummy frame. A dummy frame is created before an inferior call,
311 the frame_id returned here must match the frame_id that was built
312 for the inferior call. Usually this means the returned frame_id's
313 stack address should match the address returned by
314 gdbarch_push_dummy_call, and the returned frame_id's code address
315 should match the address at which the breakpoint was set in the dummy
318 typedef struct frame_id (gdbarch_dummy_id_ftype
) (struct gdbarch
*gdbarch
, frame_info_ptr this_frame
);
319 extern struct frame_id
gdbarch_dummy_id (struct gdbarch
*gdbarch
, frame_info_ptr this_frame
);
320 extern void set_gdbarch_dummy_id (struct gdbarch
*gdbarch
, gdbarch_dummy_id_ftype
*dummy_id
);
322 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
323 deprecated_fp_regnum. */
325 extern int gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
);
326 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch
*gdbarch
, int deprecated_fp_regnum
);
328 extern bool gdbarch_push_dummy_call_p (struct gdbarch
*gdbarch
);
330 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
);
331 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
);
332 extern void set_gdbarch_push_dummy_call (struct gdbarch
*gdbarch
, gdbarch_push_dummy_call_ftype
*push_dummy_call
);
334 extern enum call_dummy_location_type
gdbarch_call_dummy_location (struct gdbarch
*gdbarch
);
335 extern void set_gdbarch_call_dummy_location (struct gdbarch
*gdbarch
, enum call_dummy_location_type call_dummy_location
);
337 extern bool gdbarch_push_dummy_code_p (struct gdbarch
*gdbarch
);
339 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
);
340 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
);
341 extern void set_gdbarch_push_dummy_code (struct gdbarch
*gdbarch
, gdbarch_push_dummy_code_ftype
*push_dummy_code
);
343 /* Return true if the code of FRAME is writable. */
345 typedef int (gdbarch_code_of_frame_writable_ftype
) (struct gdbarch
*gdbarch
, frame_info_ptr frame
);
346 extern int gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, frame_info_ptr frame
);
347 extern void set_gdbarch_code_of_frame_writable (struct gdbarch
*gdbarch
, gdbarch_code_of_frame_writable_ftype
*code_of_frame_writable
);
349 typedef void (gdbarch_print_registers_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, int regnum
, int all
);
350 extern void gdbarch_print_registers_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, int regnum
, int all
);
351 extern void set_gdbarch_print_registers_info (struct gdbarch
*gdbarch
, gdbarch_print_registers_info_ftype
*print_registers_info
);
353 typedef void (gdbarch_print_float_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, const char *args
);
354 extern void gdbarch_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, const char *args
);
355 extern void set_gdbarch_print_float_info (struct gdbarch
*gdbarch
, gdbarch_print_float_info_ftype
*print_float_info
);
357 extern bool gdbarch_print_vector_info_p (struct gdbarch
*gdbarch
);
359 typedef void (gdbarch_print_vector_info_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, const char *args
);
360 extern void gdbarch_print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
, frame_info_ptr frame
, const char *args
);
361 extern void set_gdbarch_print_vector_info (struct gdbarch
*gdbarch
, gdbarch_print_vector_info_ftype
*print_vector_info
);
363 /* MAP a GDB RAW register number onto a simulator register number. See
364 also include/...-sim.h. */
366 typedef int (gdbarch_register_sim_regno_ftype
) (struct gdbarch
*gdbarch
, int reg_nr
);
367 extern int gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, int reg_nr
);
368 extern void set_gdbarch_register_sim_regno (struct gdbarch
*gdbarch
, gdbarch_register_sim_regno_ftype
*register_sim_regno
);
370 typedef int (gdbarch_cannot_fetch_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
371 extern int gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, int regnum
);
372 extern void set_gdbarch_cannot_fetch_register (struct gdbarch
*gdbarch
, gdbarch_cannot_fetch_register_ftype
*cannot_fetch_register
);
374 typedef int (gdbarch_cannot_store_register_ftype
) (struct gdbarch
*gdbarch
, int regnum
);
375 extern int gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, int regnum
);
376 extern void set_gdbarch_cannot_store_register (struct gdbarch
*gdbarch
, gdbarch_cannot_store_register_ftype
*cannot_store_register
);
378 /* Determine the address where a longjmp will land and save this address
379 in PC. Return nonzero on success.
381 FRAME corresponds to the longjmp frame. */
383 extern bool gdbarch_get_longjmp_target_p (struct gdbarch
*gdbarch
);
385 typedef int (gdbarch_get_longjmp_target_ftype
) (frame_info_ptr frame
, CORE_ADDR
*pc
);
386 extern int gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, frame_info_ptr frame
, CORE_ADDR
*pc
);
387 extern void set_gdbarch_get_longjmp_target (struct gdbarch
*gdbarch
, gdbarch_get_longjmp_target_ftype
*get_longjmp_target
);
389 extern int gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
);
390 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch
*gdbarch
, int believe_pcc_promotion
);
392 typedef int (gdbarch_convert_register_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
393 extern int gdbarch_convert_register_p (struct gdbarch
*gdbarch
, int regnum
, struct type
*type
);
394 extern void set_gdbarch_convert_register_p (struct gdbarch
*gdbarch
, gdbarch_convert_register_p_ftype
*convert_register_p
);
396 typedef int (gdbarch_register_to_value_ftype
) (frame_info_ptr frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
397 extern int gdbarch_register_to_value (struct gdbarch
*gdbarch
, frame_info_ptr frame
, int regnum
, struct type
*type
, gdb_byte
*buf
, int *optimizedp
, int *unavailablep
);
398 extern void set_gdbarch_register_to_value (struct gdbarch
*gdbarch
, gdbarch_register_to_value_ftype
*register_to_value
);
400 typedef void (gdbarch_value_to_register_ftype
) (frame_info_ptr frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
401 extern void gdbarch_value_to_register (struct gdbarch
*gdbarch
, frame_info_ptr frame
, int regnum
, struct type
*type
, const gdb_byte
*buf
);
402 extern void set_gdbarch_value_to_register (struct gdbarch
*gdbarch
, gdbarch_value_to_register_ftype
*value_to_register
);
404 /* Construct a value representing the contents of register REGNUM in
405 frame FRAME_ID, interpreted as type TYPE. The routine needs to
406 allocate and return a struct value with all value attributes
407 (but not the value contents) filled in. */
409 typedef struct value
* (gdbarch_value_from_register_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
410 extern struct value
* gdbarch_value_from_register (struct gdbarch
*gdbarch
, struct type
*type
, int regnum
, struct frame_id frame_id
);
411 extern void set_gdbarch_value_from_register (struct gdbarch
*gdbarch
, gdbarch_value_from_register_ftype
*value_from_register
);
413 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
414 extern CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
415 extern void set_gdbarch_pointer_to_address (struct gdbarch
*gdbarch
, gdbarch_pointer_to_address_ftype
*pointer_to_address
);
417 typedef void (gdbarch_address_to_pointer_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
418 extern void gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, struct type
*type
, gdb_byte
*buf
, CORE_ADDR addr
);
419 extern void set_gdbarch_address_to_pointer (struct gdbarch
*gdbarch
, gdbarch_address_to_pointer_ftype
*address_to_pointer
);
421 extern bool gdbarch_integer_to_address_p (struct gdbarch
*gdbarch
);
423 typedef CORE_ADDR (gdbarch_integer_to_address_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
424 extern CORE_ADDR
gdbarch_integer_to_address (struct gdbarch
*gdbarch
, struct type
*type
, const gdb_byte
*buf
);
425 extern void set_gdbarch_integer_to_address (struct gdbarch
*gdbarch
, gdbarch_integer_to_address_ftype
*integer_to_address
);
427 /* Return the return-value convention that will be used by FUNCTION
428 to return a value of type VALTYPE. FUNCTION may be NULL in which
429 case the return convention is computed based only on VALTYPE.
431 If READBUF is not NULL, extract the return value and save it in this buffer.
433 If WRITEBUF is not NULL, it contains a return value which will be
434 stored into the appropriate register. This can be used when we want
435 to force the value returned by a function (see the "return" command
438 NOTE: it is better to implement return_value_as_value instead, as that
439 method can properly handle variably-sized types. */
441 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
);
442 extern void set_gdbarch_return_value (struct gdbarch
*gdbarch
, gdbarch_return_value_ftype
*return_value
);
444 /* Return the return-value convention that will be used by FUNCTION
445 to return a value of type VALTYPE. FUNCTION may be NULL in which
446 case the return convention is computed based only on VALTYPE.
448 If READ_VALUE is not NULL, extract the return value and save it in
451 If WRITEBUF is not NULL, it contains a return value which will be
452 stored into the appropriate register. This can be used when we want
453 to force the value returned by a function (see the "return" command
456 typedef enum return_value_convention (gdbarch_return_value_as_value_ftype
) (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, struct value
**read_value
, const gdb_byte
*writebuf
);
457 extern enum return_value_convention
gdbarch_return_value_as_value (struct gdbarch
*gdbarch
, struct value
*function
, struct type
*valtype
, struct regcache
*regcache
, struct value
**read_value
, const gdb_byte
*writebuf
);
458 extern void set_gdbarch_return_value_as_value (struct gdbarch
*gdbarch
, gdbarch_return_value_as_value_ftype
*return_value_as_value
);
460 /* Return the address at which the value being returned from
461 the current function will be stored. This routine is only
462 called if the current function uses the the "struct return
465 May return 0 when unable to determine that address. */
467 typedef CORE_ADDR (gdbarch_get_return_buf_addr_ftype
) (struct type
*val_type
, frame_info_ptr cur_frame
);
468 extern CORE_ADDR
gdbarch_get_return_buf_addr (struct gdbarch
*gdbarch
, struct type
*val_type
, frame_info_ptr cur_frame
);
469 extern void set_gdbarch_get_return_buf_addr (struct gdbarch
*gdbarch
, gdbarch_get_return_buf_addr_ftype
*get_return_buf_addr
);
471 /* Return true if the typedef record needs to be replaced.".
473 Return 0 by default */
475 typedef bool (gdbarch_dwarf2_omit_typedef_p_ftype
) (struct type
*target_type
, const char *producer
, const char *name
);
476 extern bool gdbarch_dwarf2_omit_typedef_p (struct gdbarch
*gdbarch
, struct type
*target_type
, const char *producer
, const char *name
);
477 extern void set_gdbarch_dwarf2_omit_typedef_p (struct gdbarch
*gdbarch
, gdbarch_dwarf2_omit_typedef_p_ftype
*dwarf2_omit_typedef_p
);
479 /* Update PC when trying to find a call site. This is useful on
480 architectures where the call site PC, as reported in the DWARF, can be
481 incorrect for some reason.
483 The passed-in PC will be an address in the inferior. GDB will have
484 already failed to find a call site at this PC. This function may
485 simply return its parameter if it thinks that should be the correct
488 typedef CORE_ADDR (gdbarch_update_call_site_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
489 extern CORE_ADDR
gdbarch_update_call_site_pc (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
490 extern void set_gdbarch_update_call_site_pc (struct gdbarch
*gdbarch
, gdbarch_update_call_site_pc_ftype
*update_call_site_pc
);
492 /* Return true if the return value of function is stored in the first hidden
493 parameter. In theory, this feature should be language-dependent, specified
494 by language and its ABI, such as C++. Unfortunately, compiler may
495 implement it to a target-dependent feature. So that we need such hook here
496 to be aware of this in GDB. */
498 typedef int (gdbarch_return_in_first_hidden_param_p_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
499 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch
*gdbarch
, struct type
*type
);
500 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
);
502 typedef CORE_ADDR (gdbarch_skip_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
503 extern CORE_ADDR
gdbarch_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
504 extern void set_gdbarch_skip_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_prologue_ftype
*skip_prologue
);
506 extern bool gdbarch_skip_main_prologue_p (struct gdbarch
*gdbarch
);
508 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
509 extern CORE_ADDR
gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
510 extern void set_gdbarch_skip_main_prologue (struct gdbarch
*gdbarch
, gdbarch_skip_main_prologue_ftype
*skip_main_prologue
);
512 /* On some platforms, a single function may provide multiple entry points,
513 e.g. one that is used for function-pointer calls and a different one
514 that is used for direct function calls.
515 In order to ensure that breakpoints set on the function will trigger
516 no matter via which entry point the function is entered, a platform
517 may provide the skip_entrypoint callback. It is called with IP set
518 to the main entry point of a function (as determined by the symbol table),
519 and should return the address of the innermost entry point, where the
520 actual breakpoint needs to be set. Note that skip_entrypoint is used
521 by GDB common code even when debugging optimized code, where skip_prologue
524 extern bool gdbarch_skip_entrypoint_p (struct gdbarch
*gdbarch
);
526 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
527 extern CORE_ADDR
gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR ip
);
528 extern void set_gdbarch_skip_entrypoint (struct gdbarch
*gdbarch
, gdbarch_skip_entrypoint_ftype
*skip_entrypoint
);
530 typedef int (gdbarch_inner_than_ftype
) (CORE_ADDR lhs
, CORE_ADDR rhs
);
531 extern int gdbarch_inner_than (struct gdbarch
*gdbarch
, CORE_ADDR lhs
, CORE_ADDR rhs
);
532 extern void set_gdbarch_inner_than (struct gdbarch
*gdbarch
, gdbarch_inner_than_ftype
*inner_than
);
534 typedef const gdb_byte
* (gdbarch_breakpoint_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
535 extern const gdb_byte
* gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
, int *lenptr
);
536 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_from_pc_ftype
*breakpoint_from_pc
);
538 /* Return the breakpoint kind for this target based on *PCPTR. */
540 typedef int (gdbarch_breakpoint_kind_from_pc_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
541 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
);
542 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_pc_ftype
*breakpoint_kind_from_pc
);
544 /* Return the software breakpoint from KIND. KIND can have target
545 specific meaning like the Z0 kind parameter.
546 SIZE is set to the software breakpoint's length in memory. */
548 typedef const gdb_byte
* (gdbarch_sw_breakpoint_from_kind_ftype
) (struct gdbarch
*gdbarch
, int kind
, int *size
);
549 extern const gdb_byte
* gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, int kind
, int *size
);
550 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch
*gdbarch
, gdbarch_sw_breakpoint_from_kind_ftype
*sw_breakpoint_from_kind
);
552 /* Return the breakpoint kind for this target based on the current
553 processor state (e.g. the current instruction mode on ARM) and the
554 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
556 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
557 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR
*pcptr
);
558 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch
*gdbarch
, gdbarch_breakpoint_kind_from_current_state_ftype
*breakpoint_kind_from_current_state
);
560 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch
*gdbarch
);
562 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
563 extern CORE_ADDR
gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
);
564 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch
*gdbarch
, gdbarch_adjust_breakpoint_address_ftype
*adjust_breakpoint_address
);
566 typedef int (gdbarch_memory_insert_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
567 extern int gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
568 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_insert_breakpoint_ftype
*memory_insert_breakpoint
);
570 typedef int (gdbarch_memory_remove_breakpoint_ftype
) (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
571 extern int gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, struct bp_target_info
*bp_tgt
);
572 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch
*gdbarch
, gdbarch_memory_remove_breakpoint_ftype
*memory_remove_breakpoint
);
574 extern CORE_ADDR
gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
);
575 extern void set_gdbarch_decr_pc_after_break (struct gdbarch
*gdbarch
, CORE_ADDR decr_pc_after_break
);
577 /* A function can be addressed by either it's "pointer" (possibly a
578 descriptor address) or "entry point" (first executable instruction).
579 The method "convert_from_func_ptr_addr" converting the former to the
580 latter. gdbarch_deprecated_function_start_offset is being used to implement
581 a simplified subset of that functionality - the function's address
582 corresponds to the "function pointer" and the function's start
583 corresponds to the "function entry point" - and hence is redundant. */
585 extern CORE_ADDR
gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
);
586 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch
*gdbarch
, CORE_ADDR deprecated_function_start_offset
);
588 /* Return the remote protocol register number associated with this
589 register. Normally the identity mapping. */
591 typedef int (gdbarch_remote_register_number_ftype
) (struct gdbarch
*gdbarch
, int regno
);
592 extern int gdbarch_remote_register_number (struct gdbarch
*gdbarch
, int regno
);
593 extern void set_gdbarch_remote_register_number (struct gdbarch
*gdbarch
, gdbarch_remote_register_number_ftype
*remote_register_number
);
595 /* Fetch the target specific address used to represent a load module. */
597 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch
*gdbarch
);
599 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype
) (struct objfile
*objfile
);
600 extern CORE_ADDR
gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, struct objfile
*objfile
);
601 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch
*gdbarch
, gdbarch_fetch_tls_load_module_address_ftype
*fetch_tls_load_module_address
);
603 /* Return the thread-local address at OFFSET in the thread-local
604 storage for the thread PTID and the shared library or executable
605 file given by LM_ADDR. If that block of thread-local storage hasn't
606 been allocated yet, this function may throw an error. LM_ADDR may
607 be zero for statically linked multithreaded inferiors. */
609 extern bool gdbarch_get_thread_local_address_p (struct gdbarch
*gdbarch
);
611 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
612 extern CORE_ADDR
gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, ptid_t ptid
, CORE_ADDR lm_addr
, CORE_ADDR offset
);
613 extern void set_gdbarch_get_thread_local_address (struct gdbarch
*gdbarch
, gdbarch_get_thread_local_address_ftype
*get_thread_local_address
);
615 extern CORE_ADDR
gdbarch_frame_args_skip (struct gdbarch
*gdbarch
);
616 extern void set_gdbarch_frame_args_skip (struct gdbarch
*gdbarch
, CORE_ADDR frame_args_skip
);
618 typedef CORE_ADDR (gdbarch_unwind_pc_ftype
) (struct gdbarch
*gdbarch
, frame_info_ptr next_frame
);
619 extern CORE_ADDR
gdbarch_unwind_pc (struct gdbarch
*gdbarch
, frame_info_ptr next_frame
);
620 extern void set_gdbarch_unwind_pc (struct gdbarch
*gdbarch
, gdbarch_unwind_pc_ftype
*unwind_pc
);
622 typedef CORE_ADDR (gdbarch_unwind_sp_ftype
) (struct gdbarch
*gdbarch
, frame_info_ptr next_frame
);
623 extern CORE_ADDR
gdbarch_unwind_sp (struct gdbarch
*gdbarch
, frame_info_ptr next_frame
);
624 extern void set_gdbarch_unwind_sp (struct gdbarch
*gdbarch
, gdbarch_unwind_sp_ftype
*unwind_sp
);
626 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
627 frame-base. Enable frame-base before frame-unwind. */
629 extern bool gdbarch_frame_num_args_p (struct gdbarch
*gdbarch
);
631 typedef int (gdbarch_frame_num_args_ftype
) (frame_info_ptr frame
);
632 extern int gdbarch_frame_num_args (struct gdbarch
*gdbarch
, frame_info_ptr frame
);
633 extern void set_gdbarch_frame_num_args (struct gdbarch
*gdbarch
, gdbarch_frame_num_args_ftype
*frame_num_args
);
635 extern bool gdbarch_frame_align_p (struct gdbarch
*gdbarch
);
637 typedef CORE_ADDR (gdbarch_frame_align_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
638 extern CORE_ADDR
gdbarch_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR address
);
639 extern void set_gdbarch_frame_align (struct gdbarch
*gdbarch
, gdbarch_frame_align_ftype
*frame_align
);
641 typedef int (gdbarch_stabs_argument_has_addr_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
642 extern int gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, struct type
*type
);
643 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch
*gdbarch
, gdbarch_stabs_argument_has_addr_ftype
*stabs_argument_has_addr
);
645 extern int gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
);
646 extern void set_gdbarch_frame_red_zone_size (struct gdbarch
*gdbarch
, int frame_red_zone_size
);
648 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
649 extern CORE_ADDR
gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, CORE_ADDR addr
, struct target_ops
*targ
);
650 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch
*gdbarch
, gdbarch_convert_from_func_ptr_addr_ftype
*convert_from_func_ptr_addr
);
652 /* On some machines there are bits in addresses which are not really
653 part of the address, but are used by the kernel, the hardware, etc.
654 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
655 we get a "real" address such as one would find in a symbol table.
656 This is used only for addresses of instructions, and even then I'm
657 not sure it's used in all contexts. It exists to deal with there
658 being a few stray bits in the PC which would mislead us, not as some
659 sort of generic thing to handle alignment or segmentation (it's
660 possible it should be in TARGET_READ_PC instead). */
662 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
663 extern CORE_ADDR
gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
664 extern void set_gdbarch_addr_bits_remove (struct gdbarch
*gdbarch
, gdbarch_addr_bits_remove_ftype
*addr_bits_remove
);
666 /* On some architectures, not all bits of a pointer are significant.
667 On AArch64, for example, the top bits of a pointer may carry a "tag", which
668 can be ignored by the kernel and the hardware. The "tag" can be regarded as
669 additional data associated with the pointer, but it is not part of the address.
671 Given a pointer for the architecture, this hook removes all the
672 non-significant bits and sign-extends things as needed. It gets used to remove
673 non-address bits from data pointers (for example, removing the AArch64 MTE tag
674 bits from a pointer) and from code pointers (removing the AArch64 PAC signature
675 from a pointer containing the return address). */
677 typedef CORE_ADDR (gdbarch_remove_non_address_bits_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pointer
);
678 extern CORE_ADDR
gdbarch_remove_non_address_bits (struct gdbarch
*gdbarch
, CORE_ADDR pointer
);
679 extern void set_gdbarch_remove_non_address_bits (struct gdbarch
*gdbarch
, gdbarch_remove_non_address_bits_ftype
*remove_non_address_bits
);
681 /* Return a string representation of the memory tag TAG. */
683 typedef std::string (gdbarch_memtag_to_string_ftype
) (struct gdbarch
*gdbarch
, struct value
*tag
);
684 extern std::string
gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, struct value
*tag
);
685 extern void set_gdbarch_memtag_to_string (struct gdbarch
*gdbarch
, gdbarch_memtag_to_string_ftype
*memtag_to_string
);
687 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
688 must be either a pointer or a reference type. */
690 typedef bool (gdbarch_tagged_address_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
691 extern bool gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, struct value
*address
);
692 extern void set_gdbarch_tagged_address_p (struct gdbarch
*gdbarch
, gdbarch_tagged_address_p_ftype
*tagged_address_p
);
694 /* Return true if the tag from ADDRESS matches the memory tag for that
695 particular address. Return false otherwise. */
697 typedef bool (gdbarch_memtag_matches_p_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
);
698 extern bool gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, struct value
*address
);
699 extern void set_gdbarch_memtag_matches_p (struct gdbarch
*gdbarch
, gdbarch_memtag_matches_p_ftype
*memtag_matches_p
);
701 /* Set the tags of type TAG_TYPE, for the memory address range
702 [ADDRESS, ADDRESS + LENGTH) to TAGS.
703 Return true if successful and false otherwise. */
705 typedef bool (gdbarch_set_memtags_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
706 extern bool gdbarch_set_memtags (struct gdbarch
*gdbarch
, struct value
*address
, size_t length
, const gdb::byte_vector
&tags
, memtag_type tag_type
);
707 extern void set_gdbarch_set_memtags (struct gdbarch
*gdbarch
, gdbarch_set_memtags_ftype
*set_memtags
);
709 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
710 assuming ADDRESS is tagged. */
712 typedef struct value
* (gdbarch_get_memtag_ftype
) (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
713 extern struct value
* gdbarch_get_memtag (struct gdbarch
*gdbarch
, struct value
*address
, memtag_type tag_type
);
714 extern void set_gdbarch_get_memtag (struct gdbarch
*gdbarch
, gdbarch_get_memtag_ftype
*get_memtag
);
716 /* memtag_granule_size is the size of the allocation tag granule, for
717 architectures that support memory tagging.
718 This is 0 for architectures that do not support memory tagging.
719 For a non-zero value, this represents the number of bytes of memory per tag. */
721 extern CORE_ADDR
gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
);
722 extern void set_gdbarch_memtag_granule_size (struct gdbarch
*gdbarch
, CORE_ADDR memtag_granule_size
);
724 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
725 indicates if the target needs software single step. An ISA method to
728 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
729 target can single step. If not, then implement single step using breakpoints.
731 Return a vector of addresses on which the software single step
732 breakpoints should be inserted. NULL means software single step is
734 Multiple breakpoints may be inserted for some instructions such as
735 conditional branch. However, each implementation must always evaluate
736 the condition and only put the breakpoint at the branch destination if
737 the condition is true, so that we ensure forward progress when stepping
738 past a conditional branch to self. */
740 extern bool gdbarch_software_single_step_p (struct gdbarch
*gdbarch
);
742 typedef std::vector
<CORE_ADDR
> (gdbarch_software_single_step_ftype
) (struct regcache
*regcache
);
743 extern std::vector
<CORE_ADDR
> gdbarch_software_single_step (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
744 extern void set_gdbarch_software_single_step (struct gdbarch
*gdbarch
, gdbarch_software_single_step_ftype
*software_single_step
);
746 /* Return non-zero if the processor is executing a delay slot and a
747 further single-step is needed before the instruction finishes. */
749 extern bool gdbarch_single_step_through_delay_p (struct gdbarch
*gdbarch
);
751 typedef int (gdbarch_single_step_through_delay_ftype
) (struct gdbarch
*gdbarch
, frame_info_ptr frame
);
752 extern int gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, frame_info_ptr frame
);
753 extern void set_gdbarch_single_step_through_delay (struct gdbarch
*gdbarch
, gdbarch_single_step_through_delay_ftype
*single_step_through_delay
);
755 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
756 disassembler. Perhaps objdump can handle it? */
758 typedef int (gdbarch_print_insn_ftype
) (bfd_vma vma
, struct disassemble_info
*info
);
759 extern int gdbarch_print_insn (struct gdbarch
*gdbarch
, bfd_vma vma
, struct disassemble_info
*info
);
760 extern void set_gdbarch_print_insn (struct gdbarch
*gdbarch
, gdbarch_print_insn_ftype
*print_insn
);
762 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype
) (frame_info_ptr frame
, CORE_ADDR pc
);
763 extern CORE_ADDR
gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, frame_info_ptr frame
, CORE_ADDR pc
);
764 extern void set_gdbarch_skip_trampoline_code (struct gdbarch
*gdbarch
, gdbarch_skip_trampoline_code_ftype
*skip_trampoline_code
);
766 /* Vtable of solib operations functions. */
768 extern const struct target_so_ops
* gdbarch_so_ops (struct gdbarch
*gdbarch
);
769 extern void set_gdbarch_so_ops (struct gdbarch
*gdbarch
, const struct target_so_ops
* so_ops
);
771 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
772 evaluates non-zero, this is the address where the debugger will place
773 a step-resume breakpoint to get us past the dynamic linker. */
775 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
776 extern CORE_ADDR
gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
777 extern void set_gdbarch_skip_solib_resolver (struct gdbarch
*gdbarch
, gdbarch_skip_solib_resolver_ftype
*skip_solib_resolver
);
779 /* Some systems also have trampoline code for returning from shared libs. */
781 typedef int (gdbarch_in_solib_return_trampoline_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
782 extern int gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, CORE_ADDR pc
, const char *name
);
783 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch
*gdbarch
, gdbarch_in_solib_return_trampoline_ftype
*in_solib_return_trampoline
);
785 /* Return true if PC lies inside an indirect branch thunk. */
787 typedef bool (gdbarch_in_indirect_branch_thunk_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
788 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
789 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch
*gdbarch
, gdbarch_in_indirect_branch_thunk_ftype
*in_indirect_branch_thunk
);
791 /* A target might have problems with watchpoints as soon as the stack
792 frame of the current function has been destroyed. This mostly happens
793 as the first action in a function's epilogue. stack_frame_destroyed_p()
794 is defined to return a non-zero value if either the given addr is one
795 instruction after the stack destroying instruction up to the trailing
796 return instruction or if we can figure out that the stack frame has
797 already been invalidated regardless of the value of addr. Targets
798 which don't suffer from that problem could just let this functionality
801 typedef int (gdbarch_stack_frame_destroyed_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
802 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
803 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, gdbarch_stack_frame_destroyed_p_ftype
*stack_frame_destroyed_p
);
805 /* Process an ELF symbol in the minimal symbol table in a backend-specific
806 way. Normally this hook is supposed to do nothing, however if required,
807 then this hook can be used to apply tranformations to symbols that are
808 considered special in some way. For example the MIPS backend uses it
809 to interpret `st_other' information to mark compressed code symbols so
810 that they can be treated in the appropriate manner in the processing of
811 the main symbol table and DWARF-2 records. */
813 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch
*gdbarch
);
815 typedef void (gdbarch_elf_make_msymbol_special_ftype
) (asymbol
*sym
, struct minimal_symbol
*msym
);
816 extern void gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, asymbol
*sym
, struct minimal_symbol
*msym
);
817 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_elf_make_msymbol_special_ftype
*elf_make_msymbol_special
);
819 typedef void (gdbarch_coff_make_msymbol_special_ftype
) (int val
, struct minimal_symbol
*msym
);
820 extern void gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, int val
, struct minimal_symbol
*msym
);
821 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch
*gdbarch
, gdbarch_coff_make_msymbol_special_ftype
*coff_make_msymbol_special
);
823 /* Process a symbol in the main symbol table in a backend-specific way.
824 Normally this hook is supposed to do nothing, however if required,
825 then this hook can be used to apply tranformations to symbols that
826 are considered special in some way. This is currently used by the
827 MIPS backend to make sure compressed code symbols have the ISA bit
828 set. This in turn is needed for symbol values seen in GDB to match
829 the values used at the runtime by the program itself, for function
830 and label references. */
832 typedef void (gdbarch_make_symbol_special_ftype
) (struct symbol
*sym
, struct objfile
*objfile
);
833 extern void gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, struct symbol
*sym
, struct objfile
*objfile
);
834 extern void set_gdbarch_make_symbol_special (struct gdbarch
*gdbarch
, gdbarch_make_symbol_special_ftype
*make_symbol_special
);
836 /* Adjust the address retrieved from a DWARF-2 record other than a line
837 entry in a backend-specific way. Normally this hook is supposed to
838 return the address passed unchanged, however if that is incorrect for
839 any reason, then this hook can be used to fix the address up in the
840 required manner. This is currently used by the MIPS backend to make
841 sure addresses in FDE, range records, etc. referring to compressed
842 code have the ISA bit set, matching line information and the symbol
845 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype
) (CORE_ADDR pc
);
846 extern CORE_ADDR
gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
847 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_addr_ftype
*adjust_dwarf2_addr
);
849 /* Adjust the address updated by a line entry in a backend-specific way.
850 Normally this hook is supposed to return the address passed unchanged,
851 however in the case of inconsistencies in these records, this hook can
852 be used to fix them up in the required manner. This is currently used
853 by the MIPS backend to make sure all line addresses in compressed code
854 are presented with the ISA bit set, which is not always the case. This
855 in turn ensures breakpoint addresses are correctly matched against the
858 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype
) (CORE_ADDR addr
, int rel
);
859 extern CORE_ADDR
gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, CORE_ADDR addr
, int rel
);
860 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch
*gdbarch
, gdbarch_adjust_dwarf2_line_ftype
*adjust_dwarf2_line
);
862 extern int gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
);
863 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch
*gdbarch
, int cannot_step_breakpoint
);
865 /* See comment in target.h about continuable, steppable and
866 non-steppable watchpoints. */
868 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
);
869 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch
*gdbarch
, int have_nonsteppable_watchpoint
);
871 extern bool gdbarch_address_class_type_flags_p (struct gdbarch
*gdbarch
);
873 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype
) (int byte_size
, int dwarf2_addr_class
);
874 extern type_instance_flags
gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, int byte_size
, int dwarf2_addr_class
);
875 extern void set_gdbarch_address_class_type_flags (struct gdbarch
*gdbarch
, gdbarch_address_class_type_flags_ftype
*address_class_type_flags
);
877 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch
*gdbarch
);
879 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype
) (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
880 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch
*gdbarch
, type_instance_flags type_flags
);
881 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
);
883 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
884 FS are passed from the generic execute_cfa_program function. */
886 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype
) (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
887 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdb_byte op
, struct dwarf2_frame_state
*fs
);
888 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch
*gdbarch
, gdbarch_execute_dwarf_cfa_vendor_op_ftype
*execute_dwarf_cfa_vendor_op
);
890 /* Return the appropriate type_flags for the supplied address class.
891 This function should return true if the address class was recognized and
892 type_flags was set, false otherwise. */
894 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch
*gdbarch
);
896 typedef bool (gdbarch_address_class_name_to_type_flags_ftype
) (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
897 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch
*gdbarch
, const char *name
, type_instance_flags
*type_flags_ptr
);
898 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
);
900 /* Is a register in a group */
902 typedef int (gdbarch_register_reggroup_p_ftype
) (struct gdbarch
*gdbarch
, int regnum
, const struct reggroup
*reggroup
);
903 extern int gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, int regnum
, const struct reggroup
*reggroup
);
904 extern void set_gdbarch_register_reggroup_p (struct gdbarch
*gdbarch
, gdbarch_register_reggroup_p_ftype
*register_reggroup_p
);
906 /* Fetch the pointer to the ith function argument. */
908 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch
*gdbarch
);
910 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype
) (frame_info_ptr frame
, int argi
, struct type
*type
);
911 extern CORE_ADDR
gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, frame_info_ptr frame
, int argi
, struct type
*type
);
912 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch
*gdbarch
, gdbarch_fetch_pointer_argument_ftype
*fetch_pointer_argument
);
914 /* Iterate over all supported register notes in a core file. For each
915 supported register note section, the iterator must call CB and pass
916 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
917 the supported register note sections based on the current register
918 values. Otherwise it should enumerate all supported register note
921 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch
*gdbarch
);
923 typedef void (gdbarch_iterate_over_regset_sections_ftype
) (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
924 extern void gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, iterate_over_regset_sections_cb
*cb
, void *cb_data
, const struct regcache
*regcache
);
925 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch
*gdbarch
, gdbarch_iterate_over_regset_sections_ftype
*iterate_over_regset_sections
);
927 /* Create core file notes */
929 extern bool gdbarch_make_corefile_notes_p (struct gdbarch
*gdbarch
);
931 typedef gdb::unique_xmalloc_ptr
<char> (gdbarch_make_corefile_notes_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
932 extern gdb::unique_xmalloc_ptr
<char> gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, bfd
*obfd
, int *note_size
);
933 extern void set_gdbarch_make_corefile_notes (struct gdbarch
*gdbarch
, gdbarch_make_corefile_notes_ftype
*make_corefile_notes
);
935 /* Find core file memory regions */
937 extern bool gdbarch_find_memory_regions_p (struct gdbarch
*gdbarch
);
939 typedef int (gdbarch_find_memory_regions_ftype
) (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
940 extern int gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, find_memory_region_ftype func
, void *data
);
941 extern void set_gdbarch_find_memory_regions (struct gdbarch
*gdbarch
, gdbarch_find_memory_regions_ftype
*find_memory_regions
);
943 /* Given a bfd OBFD, segment ADDRESS and SIZE, create a memory tag section to be dumped to a core file */
945 extern bool gdbarch_create_memtag_section_p (struct gdbarch
*gdbarch
);
947 typedef asection
* (gdbarch_create_memtag_section_ftype
) (struct gdbarch
*gdbarch
, bfd
*obfd
, CORE_ADDR address
, size_t size
);
948 extern asection
* gdbarch_create_memtag_section (struct gdbarch
*gdbarch
, bfd
*obfd
, CORE_ADDR address
, size_t size
);
949 extern void set_gdbarch_create_memtag_section (struct gdbarch
*gdbarch
, gdbarch_create_memtag_section_ftype
*create_memtag_section
);
951 /* Given a memory tag section OSEC, fill OSEC's contents with the appropriate tag data */
953 extern bool gdbarch_fill_memtag_section_p (struct gdbarch
*gdbarch
);
955 typedef bool (gdbarch_fill_memtag_section_ftype
) (struct gdbarch
*gdbarch
, asection
*osec
);
956 extern bool gdbarch_fill_memtag_section (struct gdbarch
*gdbarch
, asection
*osec
);
957 extern void set_gdbarch_fill_memtag_section (struct gdbarch
*gdbarch
, gdbarch_fill_memtag_section_ftype
*fill_memtag_section
);
959 /* Decode a memory tag SECTION and return the tags of type TYPE contained in
960 the memory range [ADDRESS, ADDRESS + LENGTH).
961 If no tags were found, return an empty vector. */
963 extern bool gdbarch_decode_memtag_section_p (struct gdbarch
*gdbarch
);
965 typedef gdb::byte_vector (gdbarch_decode_memtag_section_ftype
) (struct gdbarch
*gdbarch
, bfd_section
*section
, int type
, CORE_ADDR address
, size_t length
);
966 extern gdb::byte_vector
gdbarch_decode_memtag_section (struct gdbarch
*gdbarch
, bfd_section
*section
, int type
, CORE_ADDR address
, size_t length
);
967 extern void set_gdbarch_decode_memtag_section (struct gdbarch
*gdbarch
, gdbarch_decode_memtag_section_ftype
*decode_memtag_section
);
969 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
970 core file into buffer READBUF with length LEN. Return the number of bytes read
971 (zero indicates failure).
972 failed, otherwise, return the red length of READBUF. */
974 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch
*gdbarch
);
976 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
977 extern ULONGEST
gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
978 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_ftype
*core_xfer_shared_libraries
);
980 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
981 libraries list from core file into buffer READBUF with length LEN.
982 Return the number of bytes read (zero indicates failure). */
984 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch
*gdbarch
);
986 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
987 extern ULONGEST
gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
988 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch
*gdbarch
, gdbarch_core_xfer_shared_libraries_aix_ftype
*core_xfer_shared_libraries_aix
);
990 /* How the core target converts a PTID from a core file to a string. */
992 extern bool gdbarch_core_pid_to_str_p (struct gdbarch
*gdbarch
);
994 typedef std::string (gdbarch_core_pid_to_str_ftype
) (struct gdbarch
*gdbarch
, ptid_t ptid
);
995 extern std::string
gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, ptid_t ptid
);
996 extern void set_gdbarch_core_pid_to_str (struct gdbarch
*gdbarch
, gdbarch_core_pid_to_str_ftype
*core_pid_to_str
);
998 /* How the core target extracts the name of a thread from a core file. */
1000 extern bool gdbarch_core_thread_name_p (struct gdbarch
*gdbarch
);
1002 typedef const char * (gdbarch_core_thread_name_ftype
) (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1003 extern const char * gdbarch_core_thread_name (struct gdbarch
*gdbarch
, struct thread_info
*thr
);
1004 extern void set_gdbarch_core_thread_name (struct gdbarch
*gdbarch
, gdbarch_core_thread_name_ftype
*core_thread_name
);
1006 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
1007 from core file into buffer READBUF with length LEN. Return the number
1008 of bytes read (zero indicates EOF, a negative value indicates failure). */
1010 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch
*gdbarch
);
1012 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype
) (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1013 extern LONGEST
gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
);
1014 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch
*gdbarch
, gdbarch_core_xfer_siginfo_ftype
*core_xfer_siginfo
);
1016 /* BFD target to use when generating a core file. */
1018 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch
*gdbarch
);
1020 extern const char * gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
);
1021 extern void set_gdbarch_gcore_bfd_target (struct gdbarch
*gdbarch
, const char * gcore_bfd_target
);
1023 /* If the elements of C++ vtables are in-place function descriptors rather
1024 than normal function pointers (which may point to code or a descriptor),
1027 extern int gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
);
1028 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch
*gdbarch
, int vtable_function_descriptors
);
1030 /* Set if the least significant bit of the delta is used instead of the least
1031 significant bit of the pfn for pointers to virtual member functions. */
1033 extern int gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
);
1034 extern void set_gdbarch_vbit_in_delta (struct gdbarch
*gdbarch
, int vbit_in_delta
);
1036 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1038 typedef void (gdbarch_skip_permanent_breakpoint_ftype
) (struct regcache
*regcache
);
1039 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, struct regcache
*regcache
);
1040 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch
*gdbarch
, gdbarch_skip_permanent_breakpoint_ftype
*skip_permanent_breakpoint
);
1042 /* The maximum length of an instruction on this architecture in bytes. */
1044 extern bool gdbarch_max_insn_length_p (struct gdbarch
*gdbarch
);
1046 extern ULONGEST
gdbarch_max_insn_length (struct gdbarch
*gdbarch
);
1047 extern void set_gdbarch_max_insn_length (struct gdbarch
*gdbarch
, ULONGEST max_insn_length
);
1049 /* Copy the instruction at FROM to TO, and make any adjustments
1050 necessary to single-step it at that address.
1052 REGS holds the state the thread's registers will have before
1053 executing the copied instruction; the PC in REGS will refer to FROM,
1054 not the copy at TO. The caller should update it to point at TO later.
1056 Return a pointer to data of the architecture's choice to be passed
1057 to gdbarch_displaced_step_fixup.
1059 For a general explanation of displaced stepping and how GDB uses it,
1060 see the comments in infrun.c.
1062 The TO area is only guaranteed to have space for
1063 gdbarch_displaced_step_buffer_length (arch) octets, so this
1064 function must not write more octets than that to this area.
1066 If you do not provide this function, GDB assumes that the
1067 architecture does not support displaced stepping.
1069 If the instruction cannot execute out of line, return NULL. The
1070 core falls back to stepping past the instruction in-line instead in
1073 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch
*gdbarch
);
1075 typedef displaced_step_copy_insn_closure_up (gdbarch_displaced_step_copy_insn_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1076 extern displaced_step_copy_insn_closure_up
gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
);
1077 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_ftype
*displaced_step_copy_insn
);
1079 /* Return true if GDB should use hardware single-stepping to execute a displaced
1080 step instruction. If false, GDB will simply restart execution at the
1081 displaced instruction location, and it is up to the target to ensure GDB will
1082 receive control again (e.g. by placing a software breakpoint instruction into
1083 the displaced instruction buffer).
1085 The default implementation returns false on all targets that provide a
1086 gdbarch_software_single_step routine, and true otherwise. */
1088 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype
) (struct gdbarch
*gdbarch
);
1089 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
);
1090 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch
*gdbarch
, gdbarch_displaced_step_hw_singlestep_ftype
*displaced_step_hw_singlestep
);
1092 /* Fix up the state after attempting to single-step a displaced
1093 instruction, to give the result we would have gotten from stepping the
1094 instruction in its original location.
1096 REGS is the register state resulting from single-stepping the
1097 displaced instruction.
1099 CLOSURE is the result from the matching call to
1100 gdbarch_displaced_step_copy_insn.
1102 FROM is the address where the instruction was original located, TO is
1103 the address of the displaced buffer where the instruction was copied
1106 COMPLETED_P is true if GDB stopped as a result of the requested step
1107 having completed (e.g. the inferior stopped with SIGTRAP), otherwise
1108 COMPLETED_P is false and GDB stopped for some other reason. In the
1109 case where a single instruction is expanded to multiple replacement
1110 instructions for stepping then it may be necessary to read the current
1111 program counter from REGS in order to decide how far through the
1112 series of replacement instructions the inferior got before stopping,
1113 this may impact what will need fixing up in this function.
1115 For a general explanation of displaced stepping and how GDB uses it,
1116 see the comments in infrun.c. */
1118 typedef void (gdbarch_displaced_step_fixup_ftype
) (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
, bool completed_p
);
1119 extern void gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, struct displaced_step_copy_insn_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
, bool completed_p
);
1120 extern void set_gdbarch_displaced_step_fixup (struct gdbarch
*gdbarch
, gdbarch_displaced_step_fixup_ftype
*displaced_step_fixup
);
1122 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1124 Throw an exception if any unexpected error happens. */
1126 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch
*gdbarch
);
1128 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1129 extern displaced_step_prepare_status
gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, thread_info
*thread
, CORE_ADDR
&displaced_pc
);
1130 extern void set_gdbarch_displaced_step_prepare (struct gdbarch
*gdbarch
, gdbarch_displaced_step_prepare_ftype
*displaced_step_prepare
);
1132 /* Clean up after a displaced step of THREAD. */
1134 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
, const target_waitstatus
&ws
);
1135 extern displaced_step_finish_status
gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, thread_info
*thread
, const target_waitstatus
&ws
);
1136 extern void set_gdbarch_displaced_step_finish (struct gdbarch
*gdbarch
, gdbarch_displaced_step_finish_ftype
*displaced_step_finish
);
1138 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1140 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch
*gdbarch
);
1142 typedef const displaced_step_copy_insn_closure
* (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype
) (inferior
*inf
, CORE_ADDR addr
);
1143 extern const displaced_step_copy_insn_closure
* gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch
*gdbarch
, inferior
*inf
, CORE_ADDR addr
);
1144 extern void set_gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch
*gdbarch
, gdbarch_displaced_step_copy_insn_closure_by_addr_ftype
*displaced_step_copy_insn_closure_by_addr
);
1146 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1147 contents of all displaced step buffers in the child's address space. */
1149 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype
) (inferior
*parent_inf
, ptid_t child_ptid
);
1150 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch
*gdbarch
, inferior
*parent_inf
, ptid_t child_ptid
);
1151 extern void set_gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch
*gdbarch
, gdbarch_displaced_step_restore_all_in_ptid_ftype
*displaced_step_restore_all_in_ptid
);
1153 /* The maximum length in octets required for a displaced-step instruction
1154 buffer. By default this will be the same as gdbarch::max_insn_length,
1155 but should be overridden for architectures that might expand a
1156 displaced-step instruction to multiple replacement instructions. */
1158 extern ULONGEST
gdbarch_displaced_step_buffer_length (struct gdbarch
*gdbarch
);
1159 extern void set_gdbarch_displaced_step_buffer_length (struct gdbarch
*gdbarch
, ULONGEST displaced_step_buffer_length
);
1161 /* Relocate an instruction to execute at a different address. OLDLOC
1162 is the address in the inferior memory where the instruction to
1163 relocate is currently at. On input, TO points to the destination
1164 where we want the instruction to be copied (and possibly adjusted)
1165 to. On output, it points to one past the end of the resulting
1166 instruction(s). The effect of executing the instruction at TO shall
1167 be the same as if executing it at FROM. For example, call
1168 instructions that implicitly push the return address on the stack
1169 should be adjusted to return to the instruction after OLDLOC;
1170 relative branches, and other PC-relative instructions need the
1171 offset adjusted; etc. */
1173 extern bool gdbarch_relocate_instruction_p (struct gdbarch
*gdbarch
);
1175 typedef void (gdbarch_relocate_instruction_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1176 extern void gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, CORE_ADDR
*to
, CORE_ADDR from
);
1177 extern void set_gdbarch_relocate_instruction (struct gdbarch
*gdbarch
, gdbarch_relocate_instruction_ftype
*relocate_instruction
);
1179 /* Refresh overlay mapped state for section OSECT. */
1181 extern bool gdbarch_overlay_update_p (struct gdbarch
*gdbarch
);
1183 typedef void (gdbarch_overlay_update_ftype
) (struct obj_section
*osect
);
1184 extern void gdbarch_overlay_update (struct gdbarch
*gdbarch
, struct obj_section
*osect
);
1185 extern void set_gdbarch_overlay_update (struct gdbarch
*gdbarch
, gdbarch_overlay_update_ftype
*overlay_update
);
1187 extern bool gdbarch_core_read_description_p (struct gdbarch
*gdbarch
);
1189 typedef const struct target_desc
* (gdbarch_core_read_description_ftype
) (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1190 extern const struct target_desc
* gdbarch_core_read_description (struct gdbarch
*gdbarch
, struct target_ops
*target
, bfd
*abfd
);
1191 extern void set_gdbarch_core_read_description (struct gdbarch
*gdbarch
, gdbarch_core_read_description_ftype
*core_read_description
);
1193 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1195 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
);
1196 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch
*gdbarch
, int sofun_address_maybe_missing
);
1198 /* Parse the instruction at ADDR storing in the record execution log
1199 the registers REGCACHE and memory ranges that will be affected when
1200 the instruction executes, along with their current values.
1201 Return -1 if something goes wrong, 0 otherwise. */
1203 extern bool gdbarch_process_record_p (struct gdbarch
*gdbarch
);
1205 typedef int (gdbarch_process_record_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1206 extern int gdbarch_process_record (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1207 extern void set_gdbarch_process_record (struct gdbarch
*gdbarch
, gdbarch_process_record_ftype
*process_record
);
1209 /* Save process state after a signal.
1210 Return -1 if something goes wrong, 0 otherwise. */
1212 extern bool gdbarch_process_record_signal_p (struct gdbarch
*gdbarch
);
1214 typedef int (gdbarch_process_record_signal_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1215 extern int gdbarch_process_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
, enum gdb_signal signal
);
1216 extern void set_gdbarch_process_record_signal (struct gdbarch
*gdbarch
, gdbarch_process_record_signal_ftype
*process_record_signal
);
1218 /* Signal translation: translate inferior's signal (target's) number
1219 into GDB's representation. The implementation of this method must
1220 be host independent. IOW, don't rely on symbols of the NAT_FILE
1221 header (the nm-*.h files), the host <signal.h> header, or similar
1222 headers. This is mainly used when cross-debugging core files ---
1223 "Live" targets hide the translation behind the target interface
1224 (target_wait, target_resume, etc.). */
1226 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch
*gdbarch
);
1228 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype
) (struct gdbarch
*gdbarch
, int signo
);
1229 extern enum gdb_signal
gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, int signo
);
1230 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_from_target_ftype
*gdb_signal_from_target
);
1232 /* Signal translation: translate the GDB's internal signal number into
1233 the inferior's signal (target's) representation. The implementation
1234 of this method must be host independent. IOW, don't rely on symbols
1235 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1236 header, or similar headers.
1237 Return the target signal number if found, or -1 if the GDB internal
1238 signal number is invalid. */
1240 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch
*gdbarch
);
1242 typedef int (gdbarch_gdb_signal_to_target_ftype
) (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1243 extern int gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, enum gdb_signal signal
);
1244 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch
*gdbarch
, gdbarch_gdb_signal_to_target_ftype
*gdb_signal_to_target
);
1246 /* Extra signal info inspection.
1248 Return a type suitable to inspect extra signal information. */
1250 extern bool gdbarch_get_siginfo_type_p (struct gdbarch
*gdbarch
);
1252 typedef struct type
* (gdbarch_get_siginfo_type_ftype
) (struct gdbarch
*gdbarch
);
1253 extern struct type
* gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
);
1254 extern void set_gdbarch_get_siginfo_type (struct gdbarch
*gdbarch
, gdbarch_get_siginfo_type_ftype
*get_siginfo_type
);
1256 /* Record architecture-specific information from the symbol table. */
1258 extern bool gdbarch_record_special_symbol_p (struct gdbarch
*gdbarch
);
1260 typedef void (gdbarch_record_special_symbol_ftype
) (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1261 extern void gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, struct objfile
*objfile
, asymbol
*sym
);
1262 extern void set_gdbarch_record_special_symbol (struct gdbarch
*gdbarch
, gdbarch_record_special_symbol_ftype
*record_special_symbol
);
1264 /* Function for the 'catch syscall' feature.
1265 Get architecture-specific system calls information from registers. */
1267 extern bool gdbarch_get_syscall_number_p (struct gdbarch
*gdbarch
);
1269 typedef LONGEST (gdbarch_get_syscall_number_ftype
) (struct gdbarch
*gdbarch
, thread_info
*thread
);
1270 extern LONGEST
gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, thread_info
*thread
);
1271 extern void set_gdbarch_get_syscall_number (struct gdbarch
*gdbarch
, gdbarch_get_syscall_number_ftype
*get_syscall_number
);
1273 /* The filename of the XML syscall for this architecture. */
1275 extern const char * gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
);
1276 extern void set_gdbarch_xml_syscall_file (struct gdbarch
*gdbarch
, const char * xml_syscall_file
);
1278 /* Information about system calls from this architecture */
1280 extern struct syscalls_info
* gdbarch_syscalls_info (struct gdbarch
*gdbarch
);
1281 extern void set_gdbarch_syscalls_info (struct gdbarch
*gdbarch
, struct syscalls_info
* syscalls_info
);
1283 /* SystemTap related fields and functions.
1284 A NULL-terminated array of prefixes used to mark an integer constant
1285 on the architecture's assembly.
1286 For example, on x86 integer constants are written as:
1288 $10 ;; integer constant 10
1290 in this case, this prefix would be the character `$'. */
1292 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
);
1293 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_prefixes
);
1295 /* A NULL-terminated array of suffixes used to mark an integer constant
1296 on the architecture's assembly. */
1298 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
);
1299 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_integer_suffixes
);
1301 /* A NULL-terminated array of prefixes used to mark a register name on
1302 the architecture's assembly.
1303 For example, on x86 the register name is written as:
1305 %eax ;; register eax
1307 in this case, this prefix would be the character `%'. */
1309 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
);
1310 extern void set_gdbarch_stap_register_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_prefixes
);
1312 /* A NULL-terminated array of suffixes used to mark a register name on
1313 the architecture's assembly. */
1315 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
);
1316 extern void set_gdbarch_stap_register_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_suffixes
);
1318 /* A NULL-terminated array of prefixes used to mark a register
1319 indirection on the architecture's assembly.
1320 For example, on x86 the register indirection is written as:
1322 (%eax) ;; indirecting eax
1324 in this case, this prefix would be the charater `('.
1326 Please note that we use the indirection prefix also for register
1327 displacement, e.g., `4(%eax)' on x86. */
1329 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
);
1330 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_prefixes
);
1332 /* A NULL-terminated array of suffixes used to mark a register
1333 indirection on the architecture's assembly.
1334 For example, on x86 the register indirection is written as:
1336 (%eax) ;; indirecting eax
1338 in this case, this prefix would be the charater `)'.
1340 Please note that we use the indirection suffix also for register
1341 displacement, e.g., `4(%eax)' on x86. */
1343 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
);
1344 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch
*gdbarch
, const char *const * stap_register_indirection_suffixes
);
1346 /* Prefix(es) used to name a register using GDB's nomenclature.
1348 For example, on PPC a register is represented by a number in the assembly
1349 language (e.g., `10' is the 10th general-purpose register). However,
1350 inside GDB this same register has an `r' appended to its name, so the 10th
1351 register would be represented as `r10' internally. */
1353 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
);
1354 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_prefix
);
1356 /* Suffix used to name a register using GDB's nomenclature. */
1358 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
);
1359 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch
*gdbarch
, const char * stap_gdb_register_suffix
);
1361 /* Check if S is a single operand.
1363 Single operands can be:
1364 - Literal integers, e.g. `$10' on x86
1365 - Register access, e.g. `%eax' on x86
1366 - Register indirection, e.g. `(%eax)' on x86
1367 - Register displacement, e.g. `4(%eax)' on x86
1369 This function should check for these patterns on the string
1370 and return 1 if some were found, or zero otherwise. Please try to match
1371 as much info as you can from the string, i.e., if you have to match
1372 something like `(%', do not match just the `('. */
1374 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch
*gdbarch
);
1376 typedef int (gdbarch_stap_is_single_operand_ftype
) (struct gdbarch
*gdbarch
, const char *s
);
1377 extern int gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
);
1378 extern void set_gdbarch_stap_is_single_operand (struct gdbarch
*gdbarch
, gdbarch_stap_is_single_operand_ftype
*stap_is_single_operand
);
1380 /* Function used to handle a "special case" in the parser.
1382 A "special case" is considered to be an unknown token, i.e., a token
1383 that the parser does not know how to parse. A good example of special
1384 case would be ARM's register displacement syntax:
1386 [R0, #4] ;; displacing R0 by 4
1388 Since the parser assumes that a register displacement is of the form:
1390 <number> <indirection_prefix> <register_name> <indirection_suffix>
1392 it means that it will not be able to recognize and parse this odd syntax.
1393 Therefore, we should add a special case function that will handle this token.
1395 This function should generate the proper expression form of the expression
1396 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1397 and so on). It should also return 1 if the parsing was successful, or zero
1398 if the token was not recognized as a special token (in this case, returning
1399 zero means that the special parser is deferring the parsing to the generic
1400 parser), and should advance the buffer pointer (p->arg). */
1402 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch
*gdbarch
);
1404 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1405 extern expr::operation_up
gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
);
1406 extern void set_gdbarch_stap_parse_special_token (struct gdbarch
*gdbarch
, gdbarch_stap_parse_special_token_ftype
*stap_parse_special_token
);
1408 /* Perform arch-dependent adjustments to a register name.
1410 In very specific situations, it may be necessary for the register
1411 name present in a SystemTap probe's argument to be handled in a
1412 special way. For example, on i386, GCC may over-optimize the
1413 register allocation and use smaller registers than necessary. In
1414 such cases, the client that is reading and evaluating the SystemTap
1415 probe (ourselves) will need to actually fetch values from the wider
1416 version of the register in question.
1418 To illustrate the example, consider the following probe argument
1423 This argument says that its value can be found at the %ax register,
1424 which is a 16-bit register. However, the argument's prefix says
1425 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1426 this case, GDB should actually fetch the probe's value from register
1427 %eax, not %ax. In this scenario, this function would actually
1428 replace the register name from %ax to %eax.
1430 The rationale for this can be found at PR breakpoints/24541. */
1432 extern bool gdbarch_stap_adjust_register_p (struct gdbarch
*gdbarch
);
1434 typedef std::string (gdbarch_stap_adjust_register_ftype
) (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1435 extern std::string
gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, struct stap_parse_info
*p
, const std::string
®name
, int regnum
);
1436 extern void set_gdbarch_stap_adjust_register (struct gdbarch
*gdbarch
, gdbarch_stap_adjust_register_ftype
*stap_adjust_register
);
1438 /* DTrace related functions.
1439 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1440 NARG must be >= 0. */
1442 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch
*gdbarch
);
1444 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype
) (struct gdbarch
*gdbarch
, int narg
);
1445 extern expr::operation_up
gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, int narg
);
1446 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch
*gdbarch
, gdbarch_dtrace_parse_probe_argument_ftype
*dtrace_parse_probe_argument
);
1448 /* True if the given ADDR does not contain the instruction sequence
1449 corresponding to a disabled DTrace is-enabled probe. */
1451 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch
*gdbarch
);
1453 typedef int (gdbarch_dtrace_probe_is_enabled_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1454 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1455 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch
*gdbarch
, gdbarch_dtrace_probe_is_enabled_ftype
*dtrace_probe_is_enabled
);
1457 /* Enable a DTrace is-enabled probe at ADDR. */
1459 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch
*gdbarch
);
1461 typedef void (gdbarch_dtrace_enable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1462 extern void gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1463 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_enable_probe_ftype
*dtrace_enable_probe
);
1465 /* Disable a DTrace is-enabled probe at ADDR. */
1467 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch
*gdbarch
);
1469 typedef void (gdbarch_dtrace_disable_probe_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1470 extern void gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1471 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch
*gdbarch
, gdbarch_dtrace_disable_probe_ftype
*dtrace_disable_probe
);
1473 /* True if the list of shared libraries is one and only for all
1474 processes, as opposed to a list of shared libraries per inferior.
1475 This usually means that all processes, although may or may not share
1476 an address space, will see the same set of symbols at the same
1479 extern int gdbarch_has_global_solist (struct gdbarch
*gdbarch
);
1480 extern void set_gdbarch_has_global_solist (struct gdbarch
*gdbarch
, int has_global_solist
);
1482 /* On some targets, even though each inferior has its own private
1483 address space, the debug interface takes care of making breakpoints
1484 visible to all address spaces automatically. For such cases,
1485 this property should be set to true. */
1487 extern int gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
);
1488 extern void set_gdbarch_has_global_breakpoints (struct gdbarch
*gdbarch
, int has_global_breakpoints
);
1490 /* True if inferiors share an address space (e.g., uClinux). */
1492 typedef int (gdbarch_has_shared_address_space_ftype
) (struct gdbarch
*gdbarch
);
1493 extern int gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
);
1494 extern void set_gdbarch_has_shared_address_space (struct gdbarch
*gdbarch
, gdbarch_has_shared_address_space_ftype
*has_shared_address_space
);
1496 /* True if a fast tracepoint can be set at an address. */
1498 typedef int (gdbarch_fast_tracepoint_valid_at_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1499 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, CORE_ADDR addr
, std::string
*msg
);
1500 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch
*gdbarch
, gdbarch_fast_tracepoint_valid_at_ftype
*fast_tracepoint_valid_at
);
1502 /* Guess register state based on tracepoint location. Used for tracepoints
1503 where no registers have been collected, but there's only one location,
1504 allowing us to guess the PC value, and perhaps some other registers.
1505 On entry, regcache has all registers marked as unavailable. */
1507 typedef void (gdbarch_guess_tracepoint_registers_ftype
) (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1508 extern void gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, struct regcache
*regcache
, CORE_ADDR addr
);
1509 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch
*gdbarch
, gdbarch_guess_tracepoint_registers_ftype
*guess_tracepoint_registers
);
1511 /* Return the "auto" target charset. */
1513 typedef const char * (gdbarch_auto_charset_ftype
) ();
1514 extern const char * gdbarch_auto_charset (struct gdbarch
*gdbarch
);
1515 extern void set_gdbarch_auto_charset (struct gdbarch
*gdbarch
, gdbarch_auto_charset_ftype
*auto_charset
);
1517 /* Return the "auto" target wide charset. */
1519 typedef const char * (gdbarch_auto_wide_charset_ftype
) ();
1520 extern const char * gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
);
1521 extern void set_gdbarch_auto_wide_charset (struct gdbarch
*gdbarch
, gdbarch_auto_wide_charset_ftype
*auto_wide_charset
);
1523 /* If non-empty, this is a file extension that will be opened in place
1524 of the file extension reported by the shared library list.
1526 This is most useful for toolchains that use a post-linker tool,
1527 where the names of the files run on the target differ in extension
1528 compared to the names of the files GDB should load for debug info. */
1530 extern const char * gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
);
1531 extern void set_gdbarch_solib_symbols_extension (struct gdbarch
*gdbarch
, const char * solib_symbols_extension
);
1533 /* If true, the target OS has DOS-based file system semantics. That
1534 is, absolute paths include a drive name, and the backslash is
1535 considered a directory separator. */
1537 extern int gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
);
1538 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch
*gdbarch
, int has_dos_based_file_system
);
1540 /* Generate bytecodes to collect the return address in a frame.
1541 Since the bytecodes run on the target, possibly with GDB not even
1542 connected, the full unwinding machinery is not available, and
1543 typically this function will issue bytecodes for one or more likely
1544 places that the return address may be found. */
1546 typedef void (gdbarch_gen_return_address_ftype
) (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1547 extern void gdbarch_gen_return_address (struct gdbarch
*gdbarch
, struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
);
1548 extern void set_gdbarch_gen_return_address (struct gdbarch
*gdbarch
, gdbarch_gen_return_address_ftype
*gen_return_address
);
1550 /* Implement the "info proc" command. */
1552 extern bool gdbarch_info_proc_p (struct gdbarch
*gdbarch
);
1554 typedef void (gdbarch_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1555 extern void gdbarch_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1556 extern void set_gdbarch_info_proc (struct gdbarch
*gdbarch
, gdbarch_info_proc_ftype
*info_proc
);
1558 /* Implement the "info proc" command for core files. Noe that there
1559 are two "info_proc"-like methods on gdbarch -- one for core files,
1560 one for live targets. */
1562 extern bool gdbarch_core_info_proc_p (struct gdbarch
*gdbarch
);
1564 typedef void (gdbarch_core_info_proc_ftype
) (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1565 extern void gdbarch_core_info_proc (struct gdbarch
*gdbarch
, const char *args
, enum info_proc_what what
);
1566 extern void set_gdbarch_core_info_proc (struct gdbarch
*gdbarch
, gdbarch_core_info_proc_ftype
*core_info_proc
);
1568 /* Iterate over all objfiles in the order that makes the most sense
1569 for the architecture to make global symbol searches.
1571 CB is a callback function passed an objfile to be searched. The iteration stops
1572 if this function returns nonzero.
1574 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1575 inspected when the symbol search was requested. */
1577 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype
) (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype cb
, struct objfile
*current_objfile
);
1578 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch
*gdbarch
, iterate_over_objfiles_in_search_order_cb_ftype cb
, struct objfile
*current_objfile
);
1579 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
);
1581 /* Ravenscar arch-dependent ops. */
1583 extern struct ravenscar_arch_ops
* gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
);
1584 extern void set_gdbarch_ravenscar_ops (struct gdbarch
*gdbarch
, struct ravenscar_arch_ops
* ravenscar_ops
);
1586 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1588 typedef int (gdbarch_insn_is_call_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1589 extern int gdbarch_insn_is_call (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1590 extern void set_gdbarch_insn_is_call (struct gdbarch
*gdbarch
, gdbarch_insn_is_call_ftype
*insn_is_call
);
1592 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1594 typedef int (gdbarch_insn_is_ret_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1595 extern int gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1596 extern void set_gdbarch_insn_is_ret (struct gdbarch
*gdbarch
, gdbarch_insn_is_ret_ftype
*insn_is_ret
);
1598 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1600 typedef int (gdbarch_insn_is_jump_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1601 extern int gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, CORE_ADDR addr
);
1602 extern void set_gdbarch_insn_is_jump (struct gdbarch
*gdbarch
, gdbarch_insn_is_jump_ftype
*insn_is_jump
);
1604 /* Return true if there's a program/permanent breakpoint planted in
1605 memory at ADDRESS, return false otherwise. */
1607 typedef bool (gdbarch_program_breakpoint_here_p_ftype
) (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1608 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, CORE_ADDR address
);
1609 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch
*gdbarch
, gdbarch_program_breakpoint_here_p_ftype
*program_breakpoint_here_p
);
1611 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1612 Return 0 if *READPTR is already at the end of the buffer.
1613 Return -1 if there is insufficient buffer for a whole entry.
1614 Return 1 if an entry was read into *TYPEP and *VALP. */
1616 extern bool gdbarch_auxv_parse_p (struct gdbarch
*gdbarch
);
1618 typedef int (gdbarch_auxv_parse_ftype
) (struct gdbarch
*gdbarch
, const gdb_byte
**readptr
, const gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1619 extern int gdbarch_auxv_parse (struct gdbarch
*gdbarch
, const gdb_byte
**readptr
, const gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
);
1620 extern void set_gdbarch_auxv_parse (struct gdbarch
*gdbarch
, gdbarch_auxv_parse_ftype
*auxv_parse
);
1622 /* Print the description of a single auxv entry described by TYPE and VAL
1625 typedef void (gdbarch_print_auxv_entry_ftype
) (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1626 extern void gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, struct ui_file
*file
, CORE_ADDR type
, CORE_ADDR val
);
1627 extern void set_gdbarch_print_auxv_entry (struct gdbarch
*gdbarch
, gdbarch_print_auxv_entry_ftype
*print_auxv_entry
);
1629 /* Find the address range of the current inferior's vsyscall/vDSO, and
1630 write it to *RANGE. If the vsyscall's length can't be determined, a
1631 range with zero length is returned. Returns true if the vsyscall is
1632 found, false otherwise. */
1634 typedef int (gdbarch_vsyscall_range_ftype
) (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1635 extern int gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, struct mem_range
*range
);
1636 extern void set_gdbarch_vsyscall_range (struct gdbarch
*gdbarch
, gdbarch_vsyscall_range_ftype
*vsyscall_range
);
1638 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1639 PROT has GDB_MMAP_PROT_* bitmask format.
1640 Throw an error if it is not possible. Returned address is always valid. */
1642 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype
) (CORE_ADDR size
, unsigned prot
);
1643 extern CORE_ADDR
gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, CORE_ADDR size
, unsigned prot
);
1644 extern void set_gdbarch_infcall_mmap (struct gdbarch
*gdbarch
, gdbarch_infcall_mmap_ftype
*infcall_mmap
);
1646 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1647 Print a warning if it is not possible. */
1649 typedef void (gdbarch_infcall_munmap_ftype
) (CORE_ADDR addr
, CORE_ADDR size
);
1650 extern void gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, CORE_ADDR addr
, CORE_ADDR size
);
1651 extern void set_gdbarch_infcall_munmap (struct gdbarch
*gdbarch
, gdbarch_infcall_munmap_ftype
*infcall_munmap
);
1653 /* Return string (caller has to use xfree for it) with options for GCC
1654 to produce code for this target, typically "-m64", "-m32" or "-m31".
1655 These options are put before CU's DW_AT_producer compilation options so that
1656 they can override it. */
1658 typedef std::string (gdbarch_gcc_target_options_ftype
) (struct gdbarch
*gdbarch
);
1659 extern std::string
gdbarch_gcc_target_options (struct gdbarch
*gdbarch
);
1660 extern void set_gdbarch_gcc_target_options (struct gdbarch
*gdbarch
, gdbarch_gcc_target_options_ftype
*gcc_target_options
);
1662 /* Return a regular expression that matches names used by this
1663 architecture in GNU configury triplets. The result is statically
1664 allocated and must not be freed. The default implementation simply
1665 returns the BFD architecture name, which is correct in nearly every
1668 typedef const char * (gdbarch_gnu_triplet_regexp_ftype
) (struct gdbarch
*gdbarch
);
1669 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
);
1670 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch
*gdbarch
, gdbarch_gnu_triplet_regexp_ftype
*gnu_triplet_regexp
);
1672 /* Return the size in 8-bit bytes of an addressable memory unit on this
1673 architecture. This corresponds to the number of 8-bit bytes associated to
1674 each address in memory. */
1676 typedef int (gdbarch_addressable_memory_unit_size_ftype
) (struct gdbarch
*gdbarch
);
1677 extern int gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
);
1678 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch
*gdbarch
, gdbarch_addressable_memory_unit_size_ftype
*addressable_memory_unit_size
);
1680 /* Functions for allowing a target to modify its disassembler options. */
1682 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
);
1683 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch
*gdbarch
, const char * disassembler_options_implicit
);
1685 extern char ** gdbarch_disassembler_options (struct gdbarch
*gdbarch
);
1686 extern void set_gdbarch_disassembler_options (struct gdbarch
*gdbarch
, char ** disassembler_options
);
1688 extern const disasm_options_and_args_t
* gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
);
1689 extern void set_gdbarch_valid_disassembler_options (struct gdbarch
*gdbarch
, const disasm_options_and_args_t
* valid_disassembler_options
);
1691 /* Type alignment override method. Return the architecture specific
1692 alignment required for TYPE. If there is no special handling
1693 required for TYPE then return the value 0, GDB will then apply the
1694 default rules as laid out in gdbtypes.c:type_align. */
1696 typedef ULONGEST (gdbarch_type_align_ftype
) (struct gdbarch
*gdbarch
, struct type
*type
);
1697 extern ULONGEST
gdbarch_type_align (struct gdbarch
*gdbarch
, struct type
*type
);
1698 extern void set_gdbarch_type_align (struct gdbarch
*gdbarch
, gdbarch_type_align_ftype
*type_align
);
1700 /* Return a string containing any flags for the given PC in the given FRAME. */
1702 typedef std::string (gdbarch_get_pc_address_flags_ftype
) (frame_info_ptr frame
, CORE_ADDR pc
);
1703 extern std::string
gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, frame_info_ptr frame
, CORE_ADDR pc
);
1704 extern void set_gdbarch_get_pc_address_flags (struct gdbarch
*gdbarch
, gdbarch_get_pc_address_flags_ftype
*get_pc_address_flags
);
1706 /* Read core file mappings */
1708 typedef void (gdbarch_read_core_file_mappings_ftype
) (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, read_core_file_mappings_pre_loop_ftype pre_loop_cb
, read_core_file_mappings_loop_ftype loop_cb
);
1709 extern void gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, struct bfd
*cbfd
, read_core_file_mappings_pre_loop_ftype pre_loop_cb
, read_core_file_mappings_loop_ftype loop_cb
);
1710 extern void set_gdbarch_read_core_file_mappings (struct gdbarch
*gdbarch
, gdbarch_read_core_file_mappings_ftype
*read_core_file_mappings
);