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2 /* vi:set ro: */
4 /* Dynamic architecture support for GDB, the GNU debugger.
6 Copyright (C) 1998-2022 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:
24 ./gdbarch.py
25 */
29 /* The following are pre-initialized by GDBARCH. */
32 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
35 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
38 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
41 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
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. */
54 /* Number of bits in an int or unsigned int for the target machine. */
59 /* Number of bits in a long or unsigned long for the target machine. */
64 /* Number of bits in a long long or unsigned long long for the target
65 machine. */
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
74 useful). */
80 extern void set_gdbarch_bfloat16_format (struct gdbarch *gdbarch, const struct floatformat ** bfloat16_format);
86 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
92 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
98 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
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. */
112 /* One if `wchar_t' is signed, zero if unsigned. */
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 */
139 /* addr_bit is the size of a target address as represented in gdb */
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. */
161 /* One if `char' acts like `signed char', zero if `unsigned char'. */
175 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
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);
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
195 never be called. */
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);
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);
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. */
220 /* Assemble agent expression bytecode to collect pseudo-register REG.
221 Return -1 if something goes wrong, 0 otherwise. */
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. */
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
240 signals.
241 UIOUT is the output stream where the handler will place information. */
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
251 all (-1).
252 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
266 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
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. */
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. */
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. */
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. */
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". */
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
316 frame. */
318 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, frame_info_ptr this_frame);
322 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
323 deprecated_fp_regnum. */
326 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
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);
335 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, enum call_dummy_location_type call_dummy_location);
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);
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);
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. */
368 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
372 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
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. */
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);
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);
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);
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
436 for instance). */
440 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);
441 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
442 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
444 /* Return the address at which the value being returned from
445 the current function will be stored. This routine is only
446 called if the current function uses the the "struct return
447 convention".
449 May return 0 when unable to determine that address. */
451 typedef CORE_ADDR (gdbarch_get_return_buf_addr_ftype) (struct type *val_type, frame_info_ptr cur_frame);
452 extern CORE_ADDR gdbarch_get_return_buf_addr (struct gdbarch *gdbarch, struct type *val_type, frame_info_ptr cur_frame);
453 extern void set_gdbarch_get_return_buf_addr (struct gdbarch *gdbarch, gdbarch_get_return_buf_addr_ftype *get_return_buf_addr);
455 /* Return true if the return value of function is stored in the first hidden
456 parameter. In theory, this feature should be language-dependent, specified
457 by language and its ABI, such as C++. Unfortunately, compiler may
458 implement it to a target-dependent feature. So that we need such hook here
459 to be aware of this in GDB. */
461 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
463 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);
467 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
473 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
475 /* On some platforms, a single function may provide multiple entry points,
476 e.g. one that is used for function-pointer calls and a different one
477 that is used for direct function calls.
478 In order to ensure that breakpoints set on the function will trigger
479 no matter via which entry point the function is entered, a platform
480 may provide the skip_entrypoint callback. It is called with IP set
481 to the main entry point of a function (as determined by the symbol table),
482 and should return the address of the innermost entry point, where the
483 actual breakpoint needs to be set. Note that skip_entrypoint is used
484 by GDB common code even when debugging optimized code, where skip_prologue
485 is not used. */
491 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
495 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
497 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
498 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
499 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
501 /* Return the breakpoint kind for this target based on *PCPTR. */
503 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
505 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc);
507 /* Return the software breakpoint from KIND. KIND can have target
508 specific meaning like the Z0 kind parameter.
509 SIZE is set to the software breakpoint's length in memory. */
511 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size);
512 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size);
513 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind);
515 /* Return the breakpoint kind for this target based on the current
516 processor state (e.g. the current instruction mode on ARM) and the
517 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
519 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
520 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
521 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state);
525 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
527 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
529 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
530 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
531 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
533 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
534 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
535 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
538 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
540 /* A function can be addressed by either it's "pointer" (possibly a
541 descriptor address) or "entry point" (first executable instruction).
542 The method "convert_from_func_ptr_addr" converting the former to the
543 latter. gdbarch_deprecated_function_start_offset is being used to implement
544 a simplified subset of that functionality - the function's address
545 corresponds to the "function pointer" and the function's start
546 corresponds to the "function entry point" - and hence is redundant. */
549 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
551 /* Return the remote protocol register number associated with this
552 register. Normally the identity mapping. */
556 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
558 /* Fetch the target specific address used to represent a load module. */
563 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
564 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
566 /* Return the thread-local address at OFFSET in the thread-local
567 storage for the thread PTID and the shared library or executable
568 file given by LM_ADDR. If that block of thread-local storage hasn't
569 been allocated yet, this function may throw an error. LM_ADDR may
570 be zero for statically linked multithreaded inferiors. */
574 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
575 extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
576 extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address);
581 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, frame_info_ptr next_frame);
583 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
585 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, frame_info_ptr next_frame);
587 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
589 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
590 frame-base. Enable frame-base before frame-unwind. */
596 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
602 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
604 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
606 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
611 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
612 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
613 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
615 /* On some machines there are bits in addresses which are not really
616 part of the address, but are used by the kernel, the hardware, etc.
617 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
618 we get a "real" address such as one would find in a symbol table.
619 This is used only for addresses of instructions, and even then I'm
620 not sure it's used in all contexts. It exists to deal with there
621 being a few stray bits in the PC which would mislead us, not as some
622 sort of generic thing to handle alignment or segmentation (it's
623 possible it should be in TARGET_READ_PC instead). */
627 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
629 /* On some architectures, not all bits of a pointer are significant.
630 On AArch64, for example, the top bits of a pointer may carry a "tag", which
631 can be ignored by the kernel and the hardware. The "tag" can be regarded as
632 additional data associated with the pointer, but it is not part of the address.
634 Given a pointer for the architecture, this hook removes all the
635 non-significant bits and sign-extends things as needed. It gets used to remove
636 non-address bits from data pointers (for example, removing the AArch64 MTE tag
637 bits from a pointer) and from code pointers (removing the AArch64 PAC signature
638 from a pointer containing the return address). */
640 typedef CORE_ADDR (gdbarch_remove_non_address_bits_ftype) (struct gdbarch *gdbarch, CORE_ADDR pointer);
642 extern void set_gdbarch_remove_non_address_bits (struct gdbarch *gdbarch, gdbarch_remove_non_address_bits_ftype *remove_non_address_bits);
644 /* Return a string representation of the memory tag TAG. */
646 typedef std::string (gdbarch_memtag_to_string_ftype) (struct gdbarch *gdbarch, struct value *tag);
648 extern void set_gdbarch_memtag_to_string (struct gdbarch *gdbarch, gdbarch_memtag_to_string_ftype *memtag_to_string);
650 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
651 must be either a pointer or a reference type. */
655 extern void set_gdbarch_tagged_address_p (struct gdbarch *gdbarch, gdbarch_tagged_address_p_ftype *tagged_address_p);
657 /* Return true if the tag from ADDRESS matches the memory tag for that
658 particular address. Return false otherwise. */
662 extern void set_gdbarch_memtag_matches_p (struct gdbarch *gdbarch, gdbarch_memtag_matches_p_ftype *memtag_matches_p);
664 /* Set the tags of type TAG_TYPE, for the memory address range
665 [ADDRESS, ADDRESS + LENGTH) to TAGS.
666 Return true if successful and false otherwise. */
668 typedef bool (gdbarch_set_memtags_ftype) (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
669 extern bool gdbarch_set_memtags (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
670 extern void set_gdbarch_set_memtags (struct gdbarch *gdbarch, gdbarch_set_memtags_ftype *set_memtags);
672 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
673 assuming ADDRESS is tagged. */
675 typedef struct value * (gdbarch_get_memtag_ftype) (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
676 extern struct value * gdbarch_get_memtag (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
677 extern void set_gdbarch_get_memtag (struct gdbarch *gdbarch, gdbarch_get_memtag_ftype *get_memtag);
679 /* memtag_granule_size is the size of the allocation tag granule, for
680 architectures that support memory tagging.
681 This is 0 for architectures that do not support memory tagging.
682 For a non-zero value, this represents the number of bytes of memory per tag. */
685 extern void set_gdbarch_memtag_granule_size (struct gdbarch *gdbarch, CORE_ADDR memtag_granule_size);
687 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
688 indicates if the target needs software single step. An ISA method to
689 implement it.
691 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
692 target can single step. If not, then implement single step using breakpoints.
694 Return a vector of addresses on which the software single step
695 breakpoints should be inserted. NULL means software single step is
696 not used.
697 Multiple breakpoints may be inserted for some instructions such as
698 conditional branch. However, each implementation must always evaluate
699 the condition and only put the breakpoint at the branch destination if
700 the condition is true, so that we ensure forward progress when stepping
701 past a conditional branch to self. */
705 typedef std::vector<CORE_ADDR> (gdbarch_software_single_step_ftype) (struct regcache *regcache);
706 extern std::vector<CORE_ADDR> gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
707 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
709 /* Return non-zero if the processor is executing a delay slot and a
710 further single-step is needed before the instruction finishes. */
714 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, frame_info_ptr frame);
716 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
718 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
719 disassembler. Perhaps objdump can handle it? */
722 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
723 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
726 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, frame_info_ptr frame, CORE_ADDR pc);
727 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
729 /* Vtable of solib operations functions. */
734 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
735 evaluates non-zero, this is the address where the debugger will place
736 a step-resume breakpoint to get us past the dynamic linker. */
740 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
742 /* Some systems also have trampoline code for returning from shared libs. */
744 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
745 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
746 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
748 /* Return true if PC lies inside an indirect branch thunk. */
752 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk);
754 /* A target might have problems with watchpoints as soon as the stack
755 frame of the current function has been destroyed. This mostly happens
756 as the first action in a function's epilogue. stack_frame_destroyed_p()
757 is defined to return a non-zero value if either the given addr is one
758 instruction after the stack destroying instruction up to the trailing
759 return instruction or if we can figure out that the stack frame has
760 already been invalidated regardless of the value of addr. Targets
761 which don't suffer from that problem could just let this functionality
762 untouched. */
766 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
768 /* Process an ELF symbol in the minimal symbol table in a backend-specific
769 way. Normally this hook is supposed to do nothing, however if required,
770 then this hook can be used to apply tranformations to symbols that are
771 considered special in some way. For example the MIPS backend uses it
772 to interpret `st_other' information to mark compressed code symbols so
773 that they can be treated in the appropriate manner in the processing of
774 the main symbol table and DWARF-2 records. */
778 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
779 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
780 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
783 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
784 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
786 /* Process a symbol in the main symbol table in a backend-specific way.
787 Normally this hook is supposed to do nothing, however if required,
788 then this hook can be used to apply tranformations to symbols that
789 are considered special in some way. This is currently used by the
790 MIPS backend to make sure compressed code symbols have the ISA bit
791 set. This in turn is needed for symbol values seen in GDB to match
792 the values used at the runtime by the program itself, for function
793 and label references. */
796 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
797 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
799 /* Adjust the address retrieved from a DWARF-2 record other than a line
800 entry in a backend-specific way. Normally this hook is supposed to
801 return the address passed unchanged, however if that is incorrect for
802 any reason, then this hook can be used to fix the address up in the
803 required manner. This is currently used by the MIPS backend to make
804 sure addresses in FDE, range records, etc. referring to compressed
805 code have the ISA bit set, matching line information and the symbol
806 table. */
810 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
812 /* Adjust the address updated by a line entry in a backend-specific way.
813 Normally this hook is supposed to return the address passed unchanged,
814 however in the case of inconsistencies in these records, this hook can
815 be used to fix them up in the required manner. This is currently used
816 by the MIPS backend to make sure all line addresses in compressed code
817 are presented with the ISA bit set, which is not always the case. This
818 in turn ensures breakpoint addresses are correctly matched against the
819 stop PC. */
823 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
826 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
828 /* See comment in target.h about continuable, steppable and
829 non-steppable watchpoints. */
832 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
836 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
837 extern type_instance_flags gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
838 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
842 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, type_instance_flags type_flags);
843 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, type_instance_flags type_flags);
844 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);
846 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
847 FS are passed from the generic execute_cfa_program function. */
849 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype) (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
850 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
851 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op);
853 /* Return the appropriate type_flags for the supplied address class.
854 This function should return true if the address class was recognized and
855 type_flags was set, false otherwise. */
859 typedef bool (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
860 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
861 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);
863 /* Is a register in a group */
865 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup);
866 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup);
867 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
869 /* Fetch the pointer to the ith function argument. */
873 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (frame_info_ptr frame, int argi, struct type *type);
874 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, frame_info_ptr frame, int argi, struct type *type);
875 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
877 /* Iterate over all supported register notes in a core file. For each
878 supported register note section, the iterator must call CB and pass
879 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
880 the supported register note sections based on the current register
881 values. Otherwise it should enumerate all supported register note
882 sections. */
886 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
887 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
888 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
890 /* Create core file notes */
894 typedef gdb::unique_xmalloc_ptr<char> (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
895 extern gdb::unique_xmalloc_ptr<char> gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
896 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
898 /* Find core file memory regions */
902 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
903 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
904 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
906 /* Given a bfd OBFD, segment ADDRESS and SIZE, create a memory tag section to be dumped to a core file */
910 typedef asection * (gdbarch_create_memtag_section_ftype) (struct gdbarch *gdbarch, bfd *obfd, CORE_ADDR address, size_t size);
911 extern asection * gdbarch_create_memtag_section (struct gdbarch *gdbarch, bfd *obfd, CORE_ADDR address, size_t size);
912 extern void set_gdbarch_create_memtag_section (struct gdbarch *gdbarch, gdbarch_create_memtag_section_ftype *create_memtag_section);
914 /* Given a memory tag section OSEC, fill OSEC's contents with the appropriate tag data */
920 extern void set_gdbarch_fill_memtag_section (struct gdbarch *gdbarch, gdbarch_fill_memtag_section_ftype *fill_memtag_section);
922 /* Decode a memory tag SECTION and return the tags of type TYPE contained in
923 the memory range [ADDRESS, ADDRESS + LENGTH).
924 If no tags were found, return an empty vector. */
928 typedef gdb::byte_vector (gdbarch_decode_memtag_section_ftype) (struct gdbarch *gdbarch, bfd_section *section, int type, CORE_ADDR address, size_t length);
929 extern gdb::byte_vector gdbarch_decode_memtag_section (struct gdbarch *gdbarch, bfd_section *section, int type, CORE_ADDR address, size_t length);
930 extern void set_gdbarch_decode_memtag_section (struct gdbarch *gdbarch, gdbarch_decode_memtag_section_ftype *decode_memtag_section);
932 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
933 core file into buffer READBUF with length LEN. Return the number of bytes read
934 (zero indicates failure).
935 failed, otherwise, return the red length of READBUF. */
939 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
940 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
941 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
943 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
944 libraries list from core file into buffer READBUF with length LEN.
945 Return the number of bytes read (zero indicates failure). */
949 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
950 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
951 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
953 /* How the core target converts a PTID from a core file to a string. */
959 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
961 /* How the core target extracts the name of a thread from a core file. */
965 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
966 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
967 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
969 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
970 from core file into buffer READBUF with length LEN. Return the number
971 of bytes read (zero indicates EOF, a negative value indicates failure). */
975 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
976 extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
977 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo);
979 /* BFD target to use when generating a core file. */
984 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
986 /* If the elements of C++ vtables are in-place function descriptors rather
987 than normal function pointers (which may point to code or a descriptor),
988 set this to one. */
991 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
993 /* Set if the least significant bit of the delta is used instead of the least
994 significant bit of the pfn for pointers to virtual member functions. */
999 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1002 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
1003 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
1005 /* The maximum length of an instruction on this architecture in bytes. */
1012 /* Copy the instruction at FROM to TO, and make any adjustments
1013 necessary to single-step it at that address.
1015 REGS holds the state the thread's registers will have before
1016 executing the copied instruction; the PC in REGS will refer to FROM,
1017 not the copy at TO. The caller should update it to point at TO later.
1019 Return a pointer to data of the architecture's choice to be passed
1020 to gdbarch_displaced_step_fixup.
1022 For a general explanation of displaced stepping and how GDB uses it,
1023 see the comments in infrun.c.
1025 The TO area is only guaranteed to have space for
1026 gdbarch_max_insn_length (arch) bytes, so this function must not
1027 write more bytes than that to that area.
1029 If you do not provide this function, GDB assumes that the
1030 architecture does not support displaced stepping.
1032 If the instruction cannot execute out of line, return NULL. The
1033 core falls back to stepping past the instruction in-line instead in
1034 that case. */
1038 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);
1039 extern displaced_step_copy_insn_closure_up gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
1040 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
1042 /* Return true if GDB should use hardware single-stepping to execute a displaced
1043 step instruction. If false, GDB will simply restart execution at the
1044 displaced instruction location, and it is up to the target to ensure GDB will
1045 receive control again (e.g. by placing a software breakpoint instruction into
1046 the displaced instruction buffer).
1048 The default implementation returns false on all targets that provide a
1049 gdbarch_software_single_step routine, and true otherwise. */
1053 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
1055 /* Fix up the state resulting from successfully single-stepping a
1056 displaced instruction, to give the result we would have gotten from
1057 stepping the instruction in its original location.
1059 REGS is the register state resulting from single-stepping the
1060 displaced instruction.
1062 CLOSURE is the result from the matching call to
1063 gdbarch_displaced_step_copy_insn.
1065 If you provide gdbarch_displaced_step_copy_insn.but not this
1066 function, then GDB assumes that no fixup is needed after
1067 single-stepping the instruction.
1069 For a general explanation of displaced stepping and how GDB uses it,
1070 see the comments in infrun.c. */
1074 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);
1075 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);
1076 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
1078 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1080 Throw an exception if any unexpected error happens. */
1084 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype) (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1085 extern displaced_step_prepare_status gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1086 extern void set_gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, gdbarch_displaced_step_prepare_ftype *displaced_step_prepare);
1088 /* Clean up after a displaced step of THREAD. */
1090 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype) (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1091 extern displaced_step_finish_status gdbarch_displaced_step_finish (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1092 extern void set_gdbarch_displaced_step_finish (struct gdbarch *gdbarch, gdbarch_displaced_step_finish_ftype *displaced_step_finish);
1094 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1098 typedef const displaced_step_copy_insn_closure * (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype) (inferior *inf, CORE_ADDR addr);
1099 extern const displaced_step_copy_insn_closure * gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch *gdbarch, inferior *inf, CORE_ADDR addr);
1100 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);
1102 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1103 contents of all displaced step buffers in the child's address space. */
1105 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype) (inferior *parent_inf, ptid_t child_ptid);
1106 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch *gdbarch, inferior *parent_inf, ptid_t child_ptid);
1107 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);
1109 /* Relocate an instruction to execute at a different address. OLDLOC
1110 is the address in the inferior memory where the instruction to
1111 relocate is currently at. On input, TO points to the destination
1112 where we want the instruction to be copied (and possibly adjusted)
1113 to. On output, it points to one past the end of the resulting
1114 instruction(s). The effect of executing the instruction at TO shall
1115 be the same as if executing it at FROM. For example, call
1116 instructions that implicitly push the return address on the stack
1117 should be adjusted to return to the instruction after OLDLOC;
1118 relative branches, and other PC-relative instructions need the
1119 offset adjusted; etc. */
1123 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1124 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1125 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1127 /* Refresh overlay mapped state for section OSECT. */
1133 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1137 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1138 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1139 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1141 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1144 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1146 /* Parse the instruction at ADDR storing in the record execution log
1147 the registers REGCACHE and memory ranges that will be affected when
1148 the instruction executes, along with their current values.
1149 Return -1 if something goes wrong, 0 otherwise. */
1153 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1154 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1155 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1157 /* Save process state after a signal.
1158 Return -1 if something goes wrong, 0 otherwise. */
1162 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1163 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1164 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1166 /* Signal translation: translate inferior's signal (target's) number
1167 into GDB's representation. The implementation of this method must
1168 be host independent. IOW, don't rely on symbols of the NAT_FILE
1169 header (the nm-*.h files), the host <signal.h> header, or similar
1170 headers. This is mainly used when cross-debugging core files ---
1171 "Live" targets hide the translation behind the target interface
1172 (target_wait, target_resume, etc.). */
1176 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1178 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1180 /* Signal translation: translate the GDB's internal signal number into
1181 the inferior's signal (target's) representation. The implementation
1182 of this method must be host independent. IOW, don't rely on symbols
1183 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1184 header, or similar headers.
1185 Return the target signal number if found, or -1 if the GDB internal
1186 signal number is invalid. */
1190 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1192 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1194 /* Extra signal info inspection.
1196 Return a type suitable to inspect extra signal information. */
1202 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1204 /* Record architecture-specific information from the symbol table. */
1208 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1209 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1210 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1212 /* Function for the 'catch syscall' feature.
1213 Get architecture-specific system calls information from registers. */
1217 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread);
1219 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1221 /* The filename of the XML syscall for this architecture. */
1224 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1226 /* Information about system calls from this architecture */
1229 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1231 /* SystemTap related fields and functions.
1232 A NULL-terminated array of prefixes used to mark an integer constant
1233 on the architecture's assembly.
1234 For example, on x86 integer constants are written as:
1236 $10 ;; integer constant 10
1238 in this case, this prefix would be the character `$'. */
1241 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1243 /* A NULL-terminated array of suffixes used to mark an integer constant
1244 on the architecture's assembly. */
1247 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1249 /* A NULL-terminated array of prefixes used to mark a register name on
1250 the architecture's assembly.
1251 For example, on x86 the register name is written as:
1253 %eax ;; register eax
1255 in this case, this prefix would be the character `%'. */
1258 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1260 /* A NULL-terminated array of suffixes used to mark a register name on
1261 the architecture's assembly. */
1264 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1266 /* A NULL-terminated array of prefixes used to mark a register
1267 indirection on the architecture's assembly.
1268 For example, on x86 the register indirection is written as:
1270 (%eax) ;; indirecting eax
1272 in this case, this prefix would be the charater `('.
1274 Please note that we use the indirection prefix also for register
1275 displacement, e.g., `4(%eax)' on x86. */
1277 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1278 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1280 /* A NULL-terminated array of suffixes used to mark a register
1281 indirection on the architecture's assembly.
1282 For example, on x86 the register indirection is written as:
1284 (%eax) ;; indirecting eax
1286 in this case, this prefix would be the charater `)'.
1288 Please note that we use the indirection suffix also for register
1289 displacement, e.g., `4(%eax)' on x86. */
1291 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1292 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1294 /* Prefix(es) used to name a register using GDB's nomenclature.
1296 For example, on PPC a register is represented by a number in the assembly
1297 language (e.g., `10' is the 10th general-purpose register). However,
1298 inside GDB this same register has an `r' appended to its name, so the 10th
1299 register would be represented as `r10' internally. */
1302 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1304 /* Suffix used to name a register using GDB's nomenclature. */
1307 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1309 /* Check if S is a single operand.
1311 Single operands can be:
1312 - Literal integers, e.g. `$10' on x86
1313 - Register access, e.g. `%eax' on x86
1314 - Register indirection, e.g. `(%eax)' on x86
1315 - Register displacement, e.g. `4(%eax)' on x86
1317 This function should check for these patterns on the string
1318 and return 1 if some were found, or zero otherwise. Please try to match
1319 as much info as you can from the string, i.e., if you have to match
1320 something like `(%', do not match just the `('. */
1326 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1328 /* Function used to handle a "special case" in the parser.
1330 A "special case" is considered to be an unknown token, i.e., a token
1331 that the parser does not know how to parse. A good example of special
1332 case would be ARM's register displacement syntax:
1334 [R0, #4] ;; displacing R0 by 4
1336 Since the parser assumes that a register displacement is of the form:
1338 <number> <indirection_prefix> <register_name> <indirection_suffix>
1340 it means that it will not be able to recognize and parse this odd syntax.
1341 Therefore, we should add a special case function that will handle this token.
1343 This function should generate the proper expression form of the expression
1344 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1345 and so on). It should also return 1 if the parsing was successful, or zero
1346 if the token was not recognized as a special token (in this case, returning
1347 zero means that the special parser is deferring the parsing to the generic
1348 parser), and should advance the buffer pointer (p->arg). */
1352 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1353 extern expr::operation_up gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1354 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1356 /* Perform arch-dependent adjustments to a register name.
1358 In very specific situations, it may be necessary for the register
1359 name present in a SystemTap probe's argument to be handled in a
1360 special way. For example, on i386, GCC may over-optimize the
1361 register allocation and use smaller registers than necessary. In
1362 such cases, the client that is reading and evaluating the SystemTap
1363 probe (ourselves) will need to actually fetch values from the wider
1364 version of the register in question.
1366 To illustrate the example, consider the following probe argument
1367 (i386):
1369 4@%ax
1371 This argument says that its value can be found at the %ax register,
1372 which is a 16-bit register. However, the argument's prefix says
1373 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1374 this case, GDB should actually fetch the probe's value from register
1375 %eax, not %ax. In this scenario, this function would actually
1376 replace the register name from %ax to %eax.
1378 The rationale for this can be found at PR breakpoints/24541. */
1382 typedef std::string (gdbarch_stap_adjust_register_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1383 extern std::string gdbarch_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1384 extern void set_gdbarch_stap_adjust_register (struct gdbarch *gdbarch, gdbarch_stap_adjust_register_ftype *stap_adjust_register);
1386 /* DTrace related functions.
1387 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1388 NARG must be >= 0. */
1392 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, int narg);
1393 extern expr::operation_up gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, int narg);
1394 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1396 /* True if the given ADDR does not contain the instruction sequence
1397 corresponding to a disabled DTrace is-enabled probe. */
1403 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1405 /* Enable a DTrace is-enabled probe at ADDR. */
1411 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1413 /* Disable a DTrace is-enabled probe at ADDR. */
1419 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1421 /* True if the list of shared libraries is one and only for all
1422 processes, as opposed to a list of shared libraries per inferior.
1423 This usually means that all processes, although may or may not share
1424 an address space, will see the same set of symbols at the same
1425 addresses. */
1430 /* On some targets, even though each inferior has its own private
1431 address space, the debug interface takes care of making breakpoints
1432 visible to all address spaces automatically. For such cases,
1433 this property should be set to true. */
1436 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1438 /* True if inferiors share an address space (e.g., uClinux). */
1442 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1444 /* True if a fast tracepoint can be set at an address. */
1446 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1447 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1448 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1450 /* Guess register state based on tracepoint location. Used for tracepoints
1451 where no registers have been collected, but there's only one location,
1452 allowing us to guess the PC value, and perhaps some other registers.
1453 On entry, regcache has all registers marked as unavailable. */
1455 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1456 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1457 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1459 /* Return the "auto" target charset. */
1463 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1465 /* Return the "auto" target wide charset. */
1469 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1471 /* If non-empty, this is a file extension that will be opened in place
1472 of the file extension reported by the shared library list.
1474 This is most useful for toolchains that use a post-linker tool,
1475 where the names of the files run on the target differ in extension
1476 compared to the names of the files GDB should load for debug info. */
1479 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1481 /* If true, the target OS has DOS-based file system semantics. That
1482 is, absolute paths include a drive name, and the backslash is
1483 considered a directory separator. */
1486 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1488 /* Generate bytecodes to collect the return address in a frame.
1489 Since the bytecodes run on the target, possibly with GDB not even
1490 connected, the full unwinding machinery is not available, and
1491 typically this function will issue bytecodes for one or more likely
1492 places that the return address may be found. */
1494 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1495 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1496 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1498 /* Implement the "info proc" command. */
1502 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1503 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1504 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1506 /* Implement the "info proc" command for core files. Noe that there
1507 are two "info_proc"-like methods on gdbarch -- one for core files,
1508 one for live targets. */
1512 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1513 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1514 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1516 /* Iterate over all objfiles in the order that makes the most sense
1517 for the architecture to make global symbol searches.
1519 CB is a callback function passed an objfile to be searched. The iteration stops
1520 if this function returns nonzero.
1522 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1523 inspected when the symbol search was requested. */
1525 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);
1526 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);
1527 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);
1529 /* Ravenscar arch-dependent ops. */
1532 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1534 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1538 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1540 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1544 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1546 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1550 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1552 /* Return true if there's a program/permanent breakpoint planted in
1553 memory at ADDRESS, return false otherwise. */
1555 typedef bool (gdbarch_program_breakpoint_here_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
1557 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, gdbarch_program_breakpoint_here_p_ftype *program_breakpoint_here_p);
1559 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1560 Return 0 if *READPTR is already at the end of the buffer.
1561 Return -1 if there is insufficient buffer for a whole entry.
1562 Return 1 if an entry was read into *TYPEP and *VALP. */
1566 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, const gdb_byte **readptr, const gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1567 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, const gdb_byte **readptr, const gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1568 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1570 /* Print the description of a single auxv entry described by TYPE and VAL
1571 to FILE. */
1573 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1574 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1575 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
1577 /* Find the address range of the current inferior's vsyscall/vDSO, and
1578 write it to *RANGE. If the vsyscall's length can't be determined, a
1579 range with zero length is returned. Returns true if the vsyscall is
1580 found, false otherwise. */
1584 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1586 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1587 PROT has GDB_MMAP_PROT_* bitmask format.
1588 Throw an error if it is not possible. Returned address is always valid. */
1591 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1592 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1594 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1595 Print a warning if it is not possible. */
1599 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1601 /* Return string (caller has to use xfree for it) with options for GCC
1602 to produce code for this target, typically "-m64", "-m32" or "-m31".
1603 These options are put before CU's DW_AT_producer compilation options so that
1604 they can override it. */
1608 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1610 /* Return a regular expression that matches names used by this
1611 architecture in GNU configury triplets. The result is statically
1612 allocated and must not be freed. The default implementation simply
1613 returns the BFD architecture name, which is correct in nearly every
1614 case. */
1618 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1620 /* Return the size in 8-bit bytes of an addressable memory unit on this
1621 architecture. This corresponds to the number of 8-bit bytes associated to
1622 each address in memory. */
1626 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1628 /* Functions for allowing a target to modify its disassembler options. */
1631 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit);
1634 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options);
1636 extern const disasm_options_and_args_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch);
1637 extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_and_args_t * valid_disassembler_options);
1639 /* Type alignment override method. Return the architecture specific
1640 alignment required for TYPE. If there is no special handling
1641 required for TYPE then return the value 0, GDB will then apply the
1642 default rules as laid out in gdbtypes.c:type_align. */
1646 extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align);
1648 /* Return a string containing any flags for the given PC in the given FRAME. */
1651 extern std::string gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, frame_info_ptr frame, CORE_ADDR pc);
1652 extern void set_gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, gdbarch_get_pc_address_flags_ftype *get_pc_address_flags);
1654 /* Read core file mappings */
1656 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);
1657 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);
1658 extern void set_gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, gdbarch_read_core_file_mappings_ftype *read_core_file_mappings);