| blob | 882b9057b1ac64fa3594e655355f580eaf46e4a7 |
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);
293 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
295 /* Return the type of a register specified by the architecture. Only
296 the register cache should call this function directly; others should
297 use "register_type". */
301 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
303 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is
304 a dummy frame. A dummy frame is created before an inferior call,
305 the frame_id returned here must match the frame_id that was built
306 for the inferior call. Usually this means the returned frame_id's
307 stack address should match the address returned by
308 gdbarch_push_dummy_call, and the returned frame_id's code address
309 should match the address at which the breakpoint was set in the dummy
310 frame. */
312 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
313 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
316 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
317 deprecated_fp_regnum. */
320 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
324 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);
325 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);
326 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
333 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);
334 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);
335 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
337 /* Return true if the code of FRAME is writable. */
339 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
341 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable);
343 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
344 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
345 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
347 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
348 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
349 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
353 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
354 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
355 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
357 /* MAP a GDB RAW register number onto a simulator register number. See
358 also include/...-sim.h. */
362 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
366 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
370 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
372 /* Determine the address where a longjmp will land and save this address
373 in PC. Return nonzero on success.
375 FRAME corresponds to the longjmp frame. */
380 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
381 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
384 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
386 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
388 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
390 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
391 extern int gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
392 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
394 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
395 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
396 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
398 /* Construct a value representing the contents of register REGNUM in
399 frame FRAME_ID, interpreted as type TYPE. The routine needs to
400 allocate and return a struct value with all value attributes
401 (but not the value contents) filled in. */
403 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
404 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
405 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
407 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
408 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
409 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
411 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
412 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
413 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
417 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
418 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
419 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
421 /* Return the return-value convention that will be used by FUNCTION
422 to return a value of type VALTYPE. FUNCTION may be NULL in which
423 case the return convention is computed based only on VALTYPE.
425 If READBUF is not NULL, extract the return value and save it in this buffer.
427 If WRITEBUF is not NULL, it contains a return value which will be
428 stored into the appropriate register. This can be used when we want
429 to force the value returned by a function (see the "return" command
430 for instance). */
434 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);
435 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);
436 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
438 /* Return true if the return value of function is stored in the first hidden
439 parameter. In theory, this feature should be language-dependent, specified
440 by language and its ABI, such as C++. Unfortunately, compiler may
441 implement it to a target-dependent feature. So that we need such hook here
442 to be aware of this in GDB. */
444 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
446 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);
450 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
456 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
458 /* On some platforms, a single function may provide multiple entry points,
459 e.g. one that is used for function-pointer calls and a different one
460 that is used for direct function calls.
461 In order to ensure that breakpoints set on the function will trigger
462 no matter via which entry point the function is entered, a platform
463 may provide the skip_entrypoint callback. It is called with IP set
464 to the main entry point of a function (as determined by the symbol table),
465 and should return the address of the innermost entry point, where the
466 actual breakpoint needs to be set. Note that skip_entrypoint is used
467 by GDB common code even when debugging optimized code, where skip_prologue
468 is not used. */
474 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
478 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
480 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
481 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
482 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
484 /* Return the breakpoint kind for this target based on *PCPTR. */
486 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr);
488 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc);
490 /* Return the software breakpoint from KIND. KIND can have target
491 specific meaning like the Z0 kind parameter.
492 SIZE is set to the software breakpoint's length in memory. */
494 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size);
495 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size);
496 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind);
498 /* Return the breakpoint kind for this target based on the current
499 processor state (e.g. the current instruction mode on ARM) and the
500 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */
502 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
503 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr);
504 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state);
508 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
510 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
512 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
513 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
514 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
516 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
517 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
518 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
521 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
523 /* A function can be addressed by either it's "pointer" (possibly a
524 descriptor address) or "entry point" (first executable instruction).
525 The method "convert_from_func_ptr_addr" converting the former to the
526 latter. gdbarch_deprecated_function_start_offset is being used to implement
527 a simplified subset of that functionality - the function's address
528 corresponds to the "function pointer" and the function's start
529 corresponds to the "function entry point" - and hence is redundant. */
532 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
534 /* Return the remote protocol register number associated with this
535 register. Normally the identity mapping. */
539 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
541 /* Fetch the target specific address used to represent a load module. */
546 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
547 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
549 /* Return the thread-local address at OFFSET in the thread-local
550 storage for the thread PTID and the shared library or executable
551 file given by LM_ADDR. If that block of thread-local storage hasn't
552 been allocated yet, this function may throw an error. LM_ADDR may
553 be zero for statically linked multithreaded inferiors. */
557 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
558 extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
559 extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address);
564 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
566 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
568 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
570 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
572 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
573 frame-base. Enable frame-base before frame-unwind. */
579 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
585 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
587 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
589 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
594 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
595 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
596 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
598 /* On some machines there are bits in addresses which are not really
599 part of the address, but are used by the kernel, the hardware, etc.
600 for special purposes. gdbarch_addr_bits_remove takes out any such bits so
601 we get a "real" address such as one would find in a symbol table.
602 This is used only for addresses of instructions, and even then I'm
603 not sure it's used in all contexts. It exists to deal with there
604 being a few stray bits in the PC which would mislead us, not as some
605 sort of generic thing to handle alignment or segmentation (it's
606 possible it should be in TARGET_READ_PC instead). */
610 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
612 /* On some machines, not all bits of an address word are significant.
613 For example, on AArch64, the top bits of an address known as the "tag"
614 are ignored by the kernel, the hardware, etc. and can be regarded as
615 additional data associated with the address. */
618 extern void set_gdbarch_significant_addr_bit (struct gdbarch *gdbarch, int significant_addr_bit);
620 /* Return a string representation of the memory tag TAG. */
622 typedef std::string (gdbarch_memtag_to_string_ftype) (struct gdbarch *gdbarch, struct value *tag);
624 extern void set_gdbarch_memtag_to_string (struct gdbarch *gdbarch, gdbarch_memtag_to_string_ftype *memtag_to_string);
626 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS
627 must be either a pointer or a reference type. */
631 extern void set_gdbarch_tagged_address_p (struct gdbarch *gdbarch, gdbarch_tagged_address_p_ftype *tagged_address_p);
633 /* Return true if the tag from ADDRESS matches the memory tag for that
634 particular address. Return false otherwise. */
638 extern void set_gdbarch_memtag_matches_p (struct gdbarch *gdbarch, gdbarch_memtag_matches_p_ftype *memtag_matches_p);
640 /* Set the tags of type TAG_TYPE, for the memory address range
641 [ADDRESS, ADDRESS + LENGTH) to TAGS.
642 Return true if successful and false otherwise. */
644 typedef bool (gdbarch_set_memtags_ftype) (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
645 extern bool gdbarch_set_memtags (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type);
646 extern void set_gdbarch_set_memtags (struct gdbarch *gdbarch, gdbarch_set_memtags_ftype *set_memtags);
648 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS,
649 assuming ADDRESS is tagged. */
651 typedef struct value * (gdbarch_get_memtag_ftype) (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
652 extern struct value * gdbarch_get_memtag (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type);
653 extern void set_gdbarch_get_memtag (struct gdbarch *gdbarch, gdbarch_get_memtag_ftype *get_memtag);
655 /* memtag_granule_size is the size of the allocation tag granule, for
656 architectures that support memory tagging.
657 This is 0 for architectures that do not support memory tagging.
658 For a non-zero value, this represents the number of bytes of memory per tag. */
661 extern void set_gdbarch_memtag_granule_size (struct gdbarch *gdbarch, CORE_ADDR memtag_granule_size);
663 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that
664 indicates if the target needs software single step. An ISA method to
665 implement it.
667 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
668 target can single step. If not, then implement single step using breakpoints.
670 Return a vector of addresses on which the software single step
671 breakpoints should be inserted. NULL means software single step is
672 not used.
673 Multiple breakpoints may be inserted for some instructions such as
674 conditional branch. However, each implementation must always evaluate
675 the condition and only put the breakpoint at the branch destination if
676 the condition is true, so that we ensure forward progress when stepping
677 past a conditional branch to self. */
681 typedef std::vector<CORE_ADDR> (gdbarch_software_single_step_ftype) (struct regcache *regcache);
682 extern std::vector<CORE_ADDR> gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
683 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
685 /* Return non-zero if the processor is executing a delay slot and a
686 further single-step is needed before the instruction finishes. */
690 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
691 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
692 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
694 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
695 disassembler. Perhaps objdump can handle it? */
698 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
699 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
701 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
702 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
703 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
705 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
706 evaluates non-zero, this is the address where the debugger will place
707 a step-resume breakpoint to get us past the dynamic linker. */
711 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
713 /* Some systems also have trampoline code for returning from shared libs. */
715 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
716 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
717 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
719 /* Return true if PC lies inside an indirect branch thunk. */
723 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk);
725 /* A target might have problems with watchpoints as soon as the stack
726 frame of the current function has been destroyed. This mostly happens
727 as the first action in a function's epilogue. stack_frame_destroyed_p()
728 is defined to return a non-zero value if either the given addr is one
729 instruction after the stack destroying instruction up to the trailing
730 return instruction or if we can figure out that the stack frame has
731 already been invalidated regardless of the value of addr. Targets
732 which don't suffer from that problem could just let this functionality
733 untouched. */
737 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
739 /* Process an ELF symbol in the minimal symbol table in a backend-specific
740 way. Normally this hook is supposed to do nothing, however if required,
741 then this hook can be used to apply tranformations to symbols that are
742 considered special in some way. For example the MIPS backend uses it
743 to interpret `st_other' information to mark compressed code symbols so
744 that they can be treated in the appropriate manner in the processing of
745 the main symbol table and DWARF-2 records. */
749 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
750 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
751 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
754 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
755 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
757 /* Process a symbol in the main symbol table in a backend-specific way.
758 Normally this hook is supposed to do nothing, however if required,
759 then this hook can be used to apply tranformations to symbols that
760 are considered special in some way. This is currently used by the
761 MIPS backend to make sure compressed code symbols have the ISA bit
762 set. This in turn is needed for symbol values seen in GDB to match
763 the values used at the runtime by the program itself, for function
764 and label references. */
767 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
768 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
770 /* Adjust the address retrieved from a DWARF-2 record other than a line
771 entry in a backend-specific way. Normally this hook is supposed to
772 return the address passed unchanged, however if that is incorrect for
773 any reason, then this hook can be used to fix the address up in the
774 required manner. This is currently used by the MIPS backend to make
775 sure addresses in FDE, range records, etc. referring to compressed
776 code have the ISA bit set, matching line information and the symbol
777 table. */
781 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
783 /* Adjust the address updated by a line entry in a backend-specific way.
784 Normally this hook is supposed to return the address passed unchanged,
785 however in the case of inconsistencies in these records, this hook can
786 be used to fix them up in the required manner. This is currently used
787 by the MIPS backend to make sure all line addresses in compressed code
788 are presented with the ISA bit set, which is not always the case. This
789 in turn ensures breakpoint addresses are correctly matched against the
790 stop PC. */
794 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
797 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
799 /* See comment in target.h about continuable, steppable and
800 non-steppable watchpoints. */
803 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
807 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
808 extern type_instance_flags gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
809 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
813 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, type_instance_flags type_flags);
814 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, type_instance_flags type_flags);
815 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);
817 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
818 FS are passed from the generic execute_cfa_program function. */
820 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype) (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
821 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs);
822 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op);
824 /* Return the appropriate type_flags for the supplied address class.
825 This function should return true if the address class was recognized and
826 type_flags was set, false otherwise. */
830 typedef bool (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
831 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr);
832 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);
834 /* Is a register in a group */
836 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup);
837 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup);
838 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
840 /* Fetch the pointer to the ith function argument. */
844 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
845 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
846 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
848 /* Iterate over all supported register notes in a core file. For each
849 supported register note section, the iterator must call CB and pass
850 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
851 the supported register note sections based on the current register
852 values. Otherwise it should enumerate all supported register note
853 sections. */
857 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
858 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
859 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
861 /* Create core file notes */
865 typedef gdb::unique_xmalloc_ptr<char> (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
866 extern gdb::unique_xmalloc_ptr<char> gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
867 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
869 /* Find core file memory regions */
873 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
874 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
875 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
877 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
878 core file into buffer READBUF with length LEN. Return the number of bytes read
879 (zero indicates failure).
880 failed, otherwise, return the red length of READBUF. */
884 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
885 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
886 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
888 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
889 libraries list from core file into buffer READBUF with length LEN.
890 Return the number of bytes read (zero indicates failure). */
894 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
895 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
896 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
898 /* How the core target converts a PTID from a core file to a string. */
904 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
906 /* How the core target extracts the name of a thread from a core file. */
910 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
911 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
912 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
914 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
915 from core file into buffer READBUF with length LEN. Return the number
916 of bytes read (zero indicates EOF, a negative value indicates failure). */
920 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
921 extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
922 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo);
924 /* BFD target to use when generating a core file. */
929 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
931 /* If the elements of C++ vtables are in-place function descriptors rather
932 than normal function pointers (which may point to code or a descriptor),
933 set this to one. */
936 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
938 /* Set if the least significant bit of the delta is used instead of the least
939 significant bit of the pfn for pointers to virtual member functions. */
944 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
947 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
948 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
950 /* The maximum length of an instruction on this architecture in bytes. */
957 /* Copy the instruction at FROM to TO, and make any adjustments
958 necessary to single-step it at that address.
960 REGS holds the state the thread's registers will have before
961 executing the copied instruction; the PC in REGS will refer to FROM,
962 not the copy at TO. The caller should update it to point at TO later.
964 Return a pointer to data of the architecture's choice to be passed
965 to gdbarch_displaced_step_fixup.
967 For a general explanation of displaced stepping and how GDB uses it,
968 see the comments in infrun.c.
970 The TO area is only guaranteed to have space for
971 gdbarch_max_insn_length (arch) bytes, so this function must not
972 write more bytes than that to that area.
974 If you do not provide this function, GDB assumes that the
975 architecture does not support displaced stepping.
977 If the instruction cannot execute out of line, return NULL. The
978 core falls back to stepping past the instruction in-line instead in
979 that case. */
983 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);
984 extern displaced_step_copy_insn_closure_up gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
985 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
987 /* Return true if GDB should use hardware single-stepping to execute a displaced
988 step instruction. If false, GDB will simply restart execution at the
989 displaced instruction location, and it is up to the target to ensure GDB will
990 receive control again (e.g. by placing a software breakpoint instruction into
991 the displaced instruction buffer).
993 The default implementation returns false on all targets that provide a
994 gdbarch_software_single_step routine, and true otherwise. */
998 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
1000 /* Fix up the state resulting from successfully single-stepping a
1001 displaced instruction, to give the result we would have gotten from
1002 stepping the instruction in its original location.
1004 REGS is the register state resulting from single-stepping the
1005 displaced instruction.
1007 CLOSURE is the result from the matching call to
1008 gdbarch_displaced_step_copy_insn.
1010 If you provide gdbarch_displaced_step_copy_insn.but not this
1011 function, then GDB assumes that no fixup is needed after
1012 single-stepping the instruction.
1014 For a general explanation of displaced stepping and how GDB uses it,
1015 see the comments in infrun.c. */
1019 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);
1020 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);
1021 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
1023 /* Prepare THREAD for it to displaced step the instruction at its current PC.
1025 Throw an exception if any unexpected error happens. */
1029 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype) (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1030 extern displaced_step_prepare_status gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc);
1031 extern void set_gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, gdbarch_displaced_step_prepare_ftype *displaced_step_prepare);
1033 /* Clean up after a displaced step of THREAD. */
1035 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype) (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1036 extern displaced_step_finish_status gdbarch_displaced_step_finish (struct gdbarch *gdbarch, thread_info *thread, gdb_signal sig);
1037 extern void set_gdbarch_displaced_step_finish (struct gdbarch *gdbarch, gdbarch_displaced_step_finish_ftype *displaced_step_finish);
1039 /* Return the closure associated to the displaced step buffer that is at ADDR. */
1043 typedef const displaced_step_copy_insn_closure * (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype) (inferior *inf, CORE_ADDR addr);
1044 extern const displaced_step_copy_insn_closure * gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch *gdbarch, inferior *inf, CORE_ADDR addr);
1045 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);
1047 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the
1048 contents of all displaced step buffers in the child's address space. */
1050 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype) (inferior *parent_inf, ptid_t child_ptid);
1051 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch *gdbarch, inferior *parent_inf, ptid_t child_ptid);
1052 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);
1054 /* Relocate an instruction to execute at a different address. OLDLOC
1055 is the address in the inferior memory where the instruction to
1056 relocate is currently at. On input, TO points to the destination
1057 where we want the instruction to be copied (and possibly adjusted)
1058 to. On output, it points to one past the end of the resulting
1059 instruction(s). The effect of executing the instruction at TO shall
1060 be the same as if executing it at FROM. For example, call
1061 instructions that implicitly push the return address on the stack
1062 should be adjusted to return to the instruction after OLDLOC;
1063 relative branches, and other PC-relative instructions need the
1064 offset adjusted; etc. */
1068 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1069 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1070 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1072 /* Refresh overlay mapped state for section OSECT. */
1078 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1082 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1083 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1084 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1086 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1089 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1091 /* Parse the instruction at ADDR storing in the record execution log
1092 the registers REGCACHE and memory ranges that will be affected when
1093 the instruction executes, along with their current values.
1094 Return -1 if something goes wrong, 0 otherwise. */
1098 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1099 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1100 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1102 /* Save process state after a signal.
1103 Return -1 if something goes wrong, 0 otherwise. */
1107 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1108 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1109 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1111 /* Signal translation: translate inferior's signal (target's) number
1112 into GDB's representation. The implementation of this method must
1113 be host independent. IOW, don't rely on symbols of the NAT_FILE
1114 header (the nm-*.h files), the host <signal.h> header, or similar
1115 headers. This is mainly used when cross-debugging core files ---
1116 "Live" targets hide the translation behind the target interface
1117 (target_wait, target_resume, etc.). */
1121 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1123 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1125 /* Signal translation: translate the GDB's internal signal number into
1126 the inferior's signal (target's) representation. The implementation
1127 of this method must be host independent. IOW, don't rely on symbols
1128 of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1129 header, or similar headers.
1130 Return the target signal number if found, or -1 if the GDB internal
1131 signal number is invalid. */
1135 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1137 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1139 /* Extra signal info inspection.
1141 Return a type suitable to inspect extra signal information. */
1147 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1149 /* Record architecture-specific information from the symbol table. */
1153 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1154 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1155 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1157 /* Function for the 'catch syscall' feature.
1158 Get architecture-specific system calls information from registers. */
1162 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread);
1164 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1166 /* The filename of the XML syscall for this architecture. */
1169 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1171 /* Information about system calls from this architecture */
1174 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1176 /* SystemTap related fields and functions.
1177 A NULL-terminated array of prefixes used to mark an integer constant
1178 on the architecture's assembly.
1179 For example, on x86 integer constants are written as:
1181 $10 ;; integer constant 10
1183 in this case, this prefix would be the character `$'. */
1186 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1188 /* A NULL-terminated array of suffixes used to mark an integer constant
1189 on the architecture's assembly. */
1192 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1194 /* A NULL-terminated array of prefixes used to mark a register name on
1195 the architecture's assembly.
1196 For example, on x86 the register name is written as:
1198 %eax ;; register eax
1200 in this case, this prefix would be the character `%'. */
1203 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1205 /* A NULL-terminated array of suffixes used to mark a register name on
1206 the architecture's assembly. */
1209 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1211 /* A NULL-terminated array of prefixes used to mark a register
1212 indirection on the architecture's assembly.
1213 For example, on x86 the register indirection is written as:
1215 (%eax) ;; indirecting eax
1217 in this case, this prefix would be the charater `('.
1219 Please note that we use the indirection prefix also for register
1220 displacement, e.g., `4(%eax)' on x86. */
1222 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1223 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1225 /* A NULL-terminated array of suffixes used to mark a register
1226 indirection on the architecture's assembly.
1227 For example, on x86 the register indirection is written as:
1229 (%eax) ;; indirecting eax
1231 in this case, this prefix would be the charater `)'.
1233 Please note that we use the indirection suffix also for register
1234 displacement, e.g., `4(%eax)' on x86. */
1236 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1237 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1239 /* Prefix(es) used to name a register using GDB's nomenclature.
1241 For example, on PPC a register is represented by a number in the assembly
1242 language (e.g., `10' is the 10th general-purpose register). However,
1243 inside GDB this same register has an `r' appended to its name, so the 10th
1244 register would be represented as `r10' internally. */
1247 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1249 /* Suffix used to name a register using GDB's nomenclature. */
1252 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1254 /* Check if S is a single operand.
1256 Single operands can be:
1257 - Literal integers, e.g. `$10' on x86
1258 - Register access, e.g. `%eax' on x86
1259 - Register indirection, e.g. `(%eax)' on x86
1260 - Register displacement, e.g. `4(%eax)' on x86
1262 This function should check for these patterns on the string
1263 and return 1 if some were found, or zero otherwise. Please try to match
1264 as much info as you can from the string, i.e., if you have to match
1265 something like `(%', do not match just the `('. */
1271 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1273 /* Function used to handle a "special case" in the parser.
1275 A "special case" is considered to be an unknown token, i.e., a token
1276 that the parser does not know how to parse. A good example of special
1277 case would be ARM's register displacement syntax:
1279 [R0, #4] ;; displacing R0 by 4
1281 Since the parser assumes that a register displacement is of the form:
1283 <number> <indirection_prefix> <register_name> <indirection_suffix>
1285 it means that it will not be able to recognize and parse this odd syntax.
1286 Therefore, we should add a special case function that will handle this token.
1288 This function should generate the proper expression form of the expression
1289 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1290 and so on). It should also return 1 if the parsing was successful, or zero
1291 if the token was not recognized as a special token (in this case, returning
1292 zero means that the special parser is deferring the parsing to the generic
1293 parser), and should advance the buffer pointer (p->arg). */
1297 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1298 extern expr::operation_up gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1299 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1301 /* Perform arch-dependent adjustments to a register name.
1303 In very specific situations, it may be necessary for the register
1304 name present in a SystemTap probe's argument to be handled in a
1305 special way. For example, on i386, GCC may over-optimize the
1306 register allocation and use smaller registers than necessary. In
1307 such cases, the client that is reading and evaluating the SystemTap
1308 probe (ourselves) will need to actually fetch values from the wider
1309 version of the register in question.
1311 To illustrate the example, consider the following probe argument
1312 (i386):
1314 4@%ax
1316 This argument says that its value can be found at the %ax register,
1317 which is a 16-bit register. However, the argument's prefix says
1318 that its type is "uint32_t", which is 32-bit in size. Therefore, in
1319 this case, GDB should actually fetch the probe's value from register
1320 %eax, not %ax. In this scenario, this function would actually
1321 replace the register name from %ax to %eax.
1323 The rationale for this can be found at PR breakpoints/24541. */
1327 typedef std::string (gdbarch_stap_adjust_register_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1328 extern std::string gdbarch_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum);
1329 extern void set_gdbarch_stap_adjust_register (struct gdbarch *gdbarch, gdbarch_stap_adjust_register_ftype *stap_adjust_register);
1331 /* DTrace related functions.
1332 The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1333 NARG must be >= 0. */
1337 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, int narg);
1338 extern expr::operation_up gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, int narg);
1339 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1341 /* True if the given ADDR does not contain the instruction sequence
1342 corresponding to a disabled DTrace is-enabled probe. */
1348 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1350 /* Enable a DTrace is-enabled probe at ADDR. */
1356 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1358 /* Disable a DTrace is-enabled probe at ADDR. */
1364 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1366 /* True if the list of shared libraries is one and only for all
1367 processes, as opposed to a list of shared libraries per inferior.
1368 This usually means that all processes, although may or may not share
1369 an address space, will see the same set of symbols at the same
1370 addresses. */
1375 /* On some targets, even though each inferior has its own private
1376 address space, the debug interface takes care of making breakpoints
1377 visible to all address spaces automatically. For such cases,
1378 this property should be set to true. */
1381 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1383 /* True if inferiors share an address space (e.g., uClinux). */
1387 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1389 /* True if a fast tracepoint can be set at an address. */
1391 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1392 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg);
1393 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1395 /* Guess register state based on tracepoint location. Used for tracepoints
1396 where no registers have been collected, but there's only one location,
1397 allowing us to guess the PC value, and perhaps some other registers.
1398 On entry, regcache has all registers marked as unavailable. */
1400 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1401 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1402 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1404 /* Return the "auto" target charset. */
1408 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1410 /* Return the "auto" target wide charset. */
1414 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1416 /* If non-empty, this is a file extension that will be opened in place
1417 of the file extension reported by the shared library list.
1419 This is most useful for toolchains that use a post-linker tool,
1420 where the names of the files run on the target differ in extension
1421 compared to the names of the files GDB should load for debug info. */
1424 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1426 /* If true, the target OS has DOS-based file system semantics. That
1427 is, absolute paths include a drive name, and the backslash is
1428 considered a directory separator. */
1431 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1433 /* Generate bytecodes to collect the return address in a frame.
1434 Since the bytecodes run on the target, possibly with GDB not even
1435 connected, the full unwinding machinery is not available, and
1436 typically this function will issue bytecodes for one or more likely
1437 places that the return address may be found. */
1439 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1440 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1441 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1443 /* Implement the "info proc" command. */
1447 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1448 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1449 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1451 /* Implement the "info proc" command for core files. Noe that there
1452 are two "info_proc"-like methods on gdbarch -- one for core files,
1453 one for live targets. */
1457 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1458 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1459 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1461 /* Iterate over all objfiles in the order that makes the most sense
1462 for the architecture to make global symbol searches.
1464 CB is a callback function where OBJFILE is the objfile to be searched,
1465 and CB_DATA a pointer to user-defined data (the same data that is passed
1466 when calling this gdbarch method). The iteration stops if this function
1467 returns nonzero.
1469 CB_DATA is a pointer to some user-defined data to be passed to
1470 the callback.
1472 If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1473 inspected when the symbol search was requested. */
1475 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1476 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
1477 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);
1479 /* Ravenscar arch-dependent ops. */
1482 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1484 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1488 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1490 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1494 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1496 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1500 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1502 /* Return true if there's a program/permanent breakpoint planted in
1503 memory at ADDRESS, return false otherwise. */
1505 typedef bool (gdbarch_program_breakpoint_here_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
1507 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, gdbarch_program_breakpoint_here_p_ftype *program_breakpoint_here_p);
1509 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1510 Return 0 if *READPTR is already at the end of the buffer.
1511 Return -1 if there is insufficient buffer for a whole entry.
1512 Return 1 if an entry was read into *TYPEP and *VALP. */
1516 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1517 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1518 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1520 /* Print the description of a single auxv entry described by TYPE and VAL
1521 to FILE. */
1523 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1524 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
1525 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
1527 /* Find the address range of the current inferior's vsyscall/vDSO, and
1528 write it to *RANGE. If the vsyscall's length can't be determined, a
1529 range with zero length is returned. Returns true if the vsyscall is
1530 found, false otherwise. */
1534 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1536 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1537 PROT has GDB_MMAP_PROT_* bitmask format.
1538 Throw an error if it is not possible. Returned address is always valid. */
1541 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1542 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1544 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1545 Print a warning if it is not possible. */
1549 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1551 /* Return string (caller has to use xfree for it) with options for GCC
1552 to produce code for this target, typically "-m64", "-m32" or "-m31".
1553 These options are put before CU's DW_AT_producer compilation options so that
1554 they can override it. */
1558 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1560 /* Return a regular expression that matches names used by this
1561 architecture in GNU configury triplets. The result is statically
1562 allocated and must not be freed. The default implementation simply
1563 returns the BFD architecture name, which is correct in nearly every
1564 case. */
1568 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1570 /* Return the size in 8-bit bytes of an addressable memory unit on this
1571 architecture. This corresponds to the number of 8-bit bytes associated to
1572 each address in memory. */
1576 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1578 /* Functions for allowing a target to modify its disassembler options. */
1581 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit);
1584 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options);
1586 extern const disasm_options_and_args_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch);
1587 extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_and_args_t * valid_disassembler_options);
1589 /* Type alignment override method. Return the architecture specific
1590 alignment required for TYPE. If there is no special handling
1591 required for TYPE then return the value 0, GDB will then apply the
1592 default rules as laid out in gdbtypes.c:type_align. */
1596 extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align);
1598 /* Return a string containing any flags for the given PC in the given FRAME. */
1601 extern std::string gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, frame_info *frame, CORE_ADDR pc);
1602 extern void set_gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, gdbarch_get_pc_address_flags_ftype *get_pc_address_flags);
1604 /* Read core file mappings */
1606 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);
1607 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);
1608 extern void set_gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, gdbarch_read_core_file_mappings_ftype *read_core_file_mappings);