1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */ 2 /* vi:set ro: */ 3 4 /* Dynamic architecture support for GDB, the GNU debugger. 5 6 Copyright (C) 1998-2023 Free Software Foundation, Inc. 7 8 This file is part of GDB. 9 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. 14 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. 19 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/>. */ 22 23 /* To regenerate this file, run: 24 ./gdbarch.py 25 */ 26 27 28 29 /* The following are pre-initialized by GDBARCH. */ 30 31 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch); 32 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */ 33 34 extern enum bfd_endian gdbarch_byte_order (struct gdbarch *gdbarch); 35 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */ 36 37 extern enum bfd_endian gdbarch_byte_order_for_code (struct gdbarch *gdbarch); 38 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */ 39 40 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch); 41 /* set_gdbarch_osabi() - not applicable - pre-initialized. */ 42 43 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch); 44 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */ 45 46 47 /* The following are initialized by the target dependent code. */ 48 49 /* Number of bits in a short or unsigned short for the target machine. */ 50 51 extern int gdbarch_short_bit (struct gdbarch *gdbarch); 52 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit); 53 54 /* Number of bits in an int or unsigned int for the target machine. */ 55 56 extern int gdbarch_int_bit (struct gdbarch *gdbarch); 57 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit); 58 59 /* Number of bits in a long or unsigned long for the target machine. */ 60 61 extern int gdbarch_long_bit (struct gdbarch *gdbarch); 62 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); 63 64 /* Number of bits in a long long or unsigned long long for the target 65 machine. */ 66 67 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); 68 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); 69 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). */ 75 76 extern int gdbarch_bfloat16_bit (struct gdbarch *gdbarch); 77 extern void set_gdbarch_bfloat16_bit (struct gdbarch *gdbarch, int bfloat16_bit); 78 79 extern const struct floatformat ** gdbarch_bfloat16_format (struct gdbarch *gdbarch); 80 extern void set_gdbarch_bfloat16_format (struct gdbarch *gdbarch, const struct floatformat ** bfloat16_format); 81 82 extern int gdbarch_half_bit (struct gdbarch *gdbarch); 83 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit); 84 85 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch); 86 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format); 87 88 extern int gdbarch_float_bit (struct gdbarch *gdbarch); 89 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit); 90 91 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch); 92 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format); 93 94 extern int gdbarch_double_bit (struct gdbarch *gdbarch); 95 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit); 96 97 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch); 98 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format); 99 100 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch); 101 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit); 102 103 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch); 104 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format); 105 106 /* The ABI default bit-size for "wchar_t". wchar_t is a built-in type 107 starting with C++11. */ 108 109 extern int gdbarch_wchar_bit (struct gdbarch *gdbarch); 110 extern void set_gdbarch_wchar_bit (struct gdbarch *gdbarch, int wchar_bit); 111 112 /* One if `wchar_t' is signed, zero if unsigned. */ 113 114 extern int gdbarch_wchar_signed (struct gdbarch *gdbarch); 115 extern void set_gdbarch_wchar_signed (struct gdbarch *gdbarch, int wchar_signed); 116 117 /* 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. */ 120 121 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); 124 125 /* 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. 129 130 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. 133 134 ptr_bit is the size of a pointer on the target */ 135 136 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch); 137 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit); 138 139 /* addr_bit is the size of a target address as represented in gdb */ 140 141 extern int gdbarch_addr_bit (struct gdbarch *gdbarch); 142 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit); 143 144 /* 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. 150 151 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally 152 defined using the target's pointer size so far. 153 154 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. */ 157 158 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch); 159 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size); 160 161 /* One if `char' acts like `signed char', zero if `unsigned char'. */ 162 163 extern int gdbarch_char_signed (struct gdbarch *gdbarch); 164 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed); 165 166 extern bool gdbarch_read_pc_p (struct gdbarch *gdbarch); 167 168 typedef CORE_ADDR (gdbarch_read_pc_ftype) (readable_regcache *regcache); 169 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, readable_regcache *regcache); 170 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc); 171 172 extern bool gdbarch_write_pc_p (struct gdbarch *gdbarch); 173 174 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val); 175 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val); 176 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc); 177 178 /* 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. */ 181 182 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); 185 186 extern bool gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch); 187 188 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); 191 192 /* 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. */ 196 197 extern bool gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch); 198 199 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); 202 203 extern bool gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); 204 205 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); 208 209 extern int gdbarch_num_regs (struct gdbarch *gdbarch); 210 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs); 211 212 /* 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. */ 216 217 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch); 218 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs); 219 220 /* Assemble agent expression bytecode to collect pseudo-register REG. 221 Return -1 if something goes wrong, 0 otherwise. */ 222 223 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch); 224 225 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); 228 229 /* 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. */ 232 233 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch); 234 235 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); 238 239 /* Some architectures can display additional information for specific 240 signals. 241 UIOUT is the output stream where the handler will place information. */ 242 243 extern bool gdbarch_report_signal_info_p (struct gdbarch *gdbarch); 244 245 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); 248 249 /* 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. */ 253 254 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch); 255 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum); 256 257 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch); 258 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum); 259 260 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch); 261 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum); 262 263 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch); 264 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum); 265 266 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */ 267 268 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr); 269 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr); 270 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum); 271 272 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ 273 274 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr); 275 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr); 276 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum); 277 278 /* Convert from an sdb register number to an internal gdb register number. */ 279 280 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr); 281 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr); 282 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum); 283 284 /* 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. */ 286 287 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr); 288 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr); 289 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum); 290 291 /* 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. */ 296 297 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr); 298 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr); 299 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name); 300 301 /* 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". */ 304 305 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr); 306 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); 307 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); 308 309 /* 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. */ 317 318 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, frame_info_ptr this_frame); 319 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, frame_info_ptr this_frame); 320 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id); 321 322 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete 323 deprecated_fp_regnum. */ 324 325 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch); 326 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum); 327 328 extern bool gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); 329 330 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); 333 334 extern enum call_dummy_location_type gdbarch_call_dummy_location (struct gdbarch *gdbarch); 335 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, enum call_dummy_location_type call_dummy_location); 336 337 extern bool gdbarch_push_dummy_code_p (struct gdbarch *gdbarch); 338 339 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); 342 343 /* Return true if the code of FRAME is writable. */ 344 345 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, frame_info_ptr frame); 346 extern int gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, frame_info_ptr frame); 347 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable); 348 349 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); 352 353 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); 356 357 extern bool gdbarch_print_vector_info_p (struct gdbarch *gdbarch); 358 359 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); 362 363 /* MAP a GDB RAW register number onto a simulator register number. See 364 also include/...-sim.h. */ 365 366 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr); 367 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr); 368 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno); 369 370 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum); 371 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum); 372 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register); 373 374 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum); 375 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum); 376 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register); 377 378 /* Determine the address where a longjmp will land and save this address 379 in PC. Return nonzero on success. 380 381 FRAME corresponds to the longjmp frame. */ 382 383 extern bool gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch); 384 385 typedef int (gdbarch_get_longjmp_target_ftype) (frame_info_ptr frame, CORE_ADDR *pc); 386 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, frame_info_ptr frame, CORE_ADDR *pc); 387 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target); 388 389 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch); 390 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion); 391 392 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type); 393 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type); 394 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p); 395 396 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); 399 400 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); 403 404 /* 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. */ 408 409 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); 412 413 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); 416 417 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); 420 421 extern bool gdbarch_integer_to_address_p (struct gdbarch *gdbarch); 422 423 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); 426 427 /* 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. 430 431 If READBUF is not NULL, extract the return value and save it in this buffer. 432 433 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). */ 437 438 extern bool gdbarch_return_value_p (struct gdbarch *gdbarch); 439 440 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); 443 444 /* 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". 448 449 May return 0 when unable to determine that address. */ 450 451 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); 454 455 /* 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. */ 460 461 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type); 462 extern int gdbarch_return_in_first_hidden_param_p (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); 464 465 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 466 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 467 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue); 468 469 extern bool gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch); 470 471 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 472 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 473 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue); 474 475 /* 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. */ 486 487 extern bool gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch); 488 489 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 490 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip); 491 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint); 492 493 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs); 494 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs); 495 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than); 496 497 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); 500 501 /* Return the breakpoint kind for this target based on *PCPTR. */ 502 503 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr); 504 extern int gdbarch_breakpoint_kind_from_pc (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); 506 507 /* 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. */ 510 511 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); 514 515 /* 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. */ 518 519 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); 522 523 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch); 524 525 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 526 extern CORE_ADDR gdbarch_adjust_breakpoint_address (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); 528 529 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); 532 533 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); 536 537 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch); 538 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break); 539 540 /* 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. */ 547 548 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch); 549 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset); 550 551 /* Return the remote protocol register number associated with this 552 register. Normally the identity mapping. */ 553 554 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno); 555 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno); 556 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number); 557 558 /* Fetch the target specific address used to represent a load module. */ 559 560 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch); 561 562 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile); 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); 565 566 /* 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. */ 571 572 extern bool gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch); 573 574 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); 577 578 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); 579 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); 580 581 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, frame_info_ptr next_frame); 582 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, frame_info_ptr next_frame); 583 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); 584 585 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, frame_info_ptr next_frame); 586 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, frame_info_ptr next_frame); 587 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); 588 589 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 590 frame-base. Enable frame-base before frame-unwind. */ 591 592 extern bool gdbarch_frame_num_args_p (struct gdbarch *gdbarch); 593 594 typedef int (gdbarch_frame_num_args_ftype) (frame_info_ptr frame); 595 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, frame_info_ptr frame); 596 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args); 597 598 extern bool gdbarch_frame_align_p (struct gdbarch *gdbarch); 599 600 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 601 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address); 602 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align); 603 604 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type); 605 extern int gdbarch_stabs_argument_has_addr (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); 607 608 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch); 609 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size); 610 611 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); 614 615 /* 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). */ 624 625 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 626 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); 627 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); 628 629 /* 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. 633 634 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). */ 639 640 typedef CORE_ADDR (gdbarch_remove_non_address_bits_ftype) (struct gdbarch *gdbarch, CORE_ADDR pointer); 641 extern CORE_ADDR gdbarch_remove_non_address_bits (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); 643 644 /* Return a string representation of the memory tag TAG. */ 645 646 typedef std::string (gdbarch_memtag_to_string_ftype) (struct gdbarch *gdbarch, struct value *tag); 647 extern std::string gdbarch_memtag_to_string (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); 649 650 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS 651 must be either a pointer or a reference type. */ 652 653 typedef bool (gdbarch_tagged_address_p_ftype) (struct gdbarch *gdbarch, struct value *address); 654 extern bool gdbarch_tagged_address_p (struct gdbarch *gdbarch, struct value *address); 655 extern void set_gdbarch_tagged_address_p (struct gdbarch *gdbarch, gdbarch_tagged_address_p_ftype *tagged_address_p); 656 657 /* Return true if the tag from ADDRESS matches the memory tag for that 658 particular address. Return false otherwise. */ 659 660 typedef bool (gdbarch_memtag_matches_p_ftype) (struct gdbarch *gdbarch, struct value *address); 661 extern bool gdbarch_memtag_matches_p (struct gdbarch *gdbarch, struct value *address); 662 extern void set_gdbarch_memtag_matches_p (struct gdbarch *gdbarch, gdbarch_memtag_matches_p_ftype *memtag_matches_p); 663 664 /* 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. */ 667 668 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); 671 672 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS, 673 assuming ADDRESS is tagged. */ 674 675 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); 678 679 /* 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. */ 683 684 extern CORE_ADDR gdbarch_memtag_granule_size (struct gdbarch *gdbarch); 685 extern void set_gdbarch_memtag_granule_size (struct gdbarch *gdbarch, CORE_ADDR memtag_granule_size); 686 687 /* 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. 690 691 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. 693 694 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. */ 702 703 extern bool gdbarch_software_single_step_p (struct gdbarch *gdbarch); 704 705 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); 708 709 /* Return non-zero if the processor is executing a delay slot and a 710 further single-step is needed before the instruction finishes. */ 711 712 extern bool gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch); 713 714 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, frame_info_ptr frame); 715 extern int gdbarch_single_step_through_delay (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); 717 718 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the 719 disassembler. Perhaps objdump can handle it? */ 720 721 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info); 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); 724 725 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (frame_info_ptr frame, CORE_ADDR pc); 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); 728 729 /* Vtable of solib operations functions. */ 730 731 extern const struct target_so_ops * gdbarch_so_ops (struct gdbarch *gdbarch); 732 extern void set_gdbarch_so_ops (struct gdbarch *gdbarch, const struct target_so_ops * so_ops); 733 734 /* 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. */ 737 738 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 739 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); 740 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver); 741 742 /* Some systems also have trampoline code for returning from shared libs. */ 743 744 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); 747 748 /* Return true if PC lies inside an indirect branch thunk. */ 749 750 typedef bool (gdbarch_in_indirect_branch_thunk_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 751 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, CORE_ADDR pc); 752 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk); 753 754 /* 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. */ 763 764 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 765 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr); 766 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p); 767 768 /* 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. */ 775 776 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch); 777 778 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); 781 782 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym); 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); 785 786 /* 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. */ 794 795 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile); 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); 798 799 /* 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. */ 807 808 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc); 809 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc); 810 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr); 811 812 /* 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. */ 820 821 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel); 822 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel); 823 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line); 824 825 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); 826 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); 827 828 /* See comment in target.h about continuable, steppable and 829 non-steppable watchpoints. */ 830 831 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); 832 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); 833 834 extern bool gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch); 835 836 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); 839 840 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch); 841 842 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); 845 846 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction. 847 FS are passed from the generic execute_cfa_program function. */ 848 849 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); 852 853 /* 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. */ 856 857 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch); 858 859 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); 862 863 /* Is a register in a group */ 864 865 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); 868 869 /* Fetch the pointer to the ith function argument. */ 870 871 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch); 872 873 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); 876 877 /* 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. */ 883 884 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch); 885 886 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); 889 890 /* Create core file notes */ 891 892 extern bool gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch); 893 894 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); 897 898 /* Find core file memory regions */ 899 900 extern bool gdbarch_find_memory_regions_p (struct gdbarch *gdbarch); 901 902 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); 905 906 /* Given a bfd OBFD, segment ADDRESS and SIZE, create a memory tag section to be dumped to a core file */ 907 908 extern bool gdbarch_create_memtag_section_p (struct gdbarch *gdbarch); 909 910 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); 913 914 /* Given a memory tag section OSEC, fill OSEC's contents with the appropriate tag data */ 915 916 extern bool gdbarch_fill_memtag_section_p (struct gdbarch *gdbarch); 917 918 typedef bool (gdbarch_fill_memtag_section_ftype) (struct gdbarch *gdbarch, asection *osec); 919 extern bool gdbarch_fill_memtag_section (struct gdbarch *gdbarch, asection *osec); 920 extern void set_gdbarch_fill_memtag_section (struct gdbarch *gdbarch, gdbarch_fill_memtag_section_ftype *fill_memtag_section); 921 922 /* 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. */ 925 926 extern bool gdbarch_decode_memtag_section_p (struct gdbarch *gdbarch); 927 928 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); 931 932 /* 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. */ 936 937 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch); 938 939 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); 942 943 /* 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). */ 946 947 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch); 948 949 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); 952 953 /* How the core target converts a PTID from a core file to a string. */ 954 955 extern bool gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch); 956 957 typedef std::string (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 958 extern std::string gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); 959 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str); 960 961 /* How the core target extracts the name of a thread from a core file. */ 962 963 extern bool gdbarch_core_thread_name_p (struct gdbarch *gdbarch); 964 965 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); 968 969 /* 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). */ 972 973 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch); 974 975 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); 978 979 /* BFD target to use when generating a core file. */ 980 981 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch); 982 983 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch); 984 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target); 985 986 /* 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. */ 989 990 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch); 991 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors); 992 993 /* 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. */ 995 996 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch); 997 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta); 998 999 /* Advance PC to next instruction in order to skip a permanent breakpoint. */ 1000 1001 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache); 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); 1004 1005 /* The maximum length of an instruction on this architecture in bytes. */ 1006 1007 extern bool gdbarch_max_insn_length_p (struct gdbarch *gdbarch); 1008 1009 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch); 1010 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length); 1011 1012 /* Copy the instruction at FROM to TO, and make any adjustments 1013 necessary to single-step it at that address. 1014 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. 1018 1019 Return a pointer to data of the architecture's choice to be passed 1020 to gdbarch_displaced_step_fixup. 1021 1022 For a general explanation of displaced stepping and how GDB uses it, 1023 see the comments in infrun.c. 1024 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. 1028 1029 If you do not provide this function, GDB assumes that the 1030 architecture does not support displaced stepping. 1031 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. */ 1035 1036 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch); 1037 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); 1041 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). 1047 1048 The default implementation returns false on all targets that provide a 1049 gdbarch_software_single_step routine, and true otherwise. */ 1050 1051 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch); 1052 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch); 1053 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep); 1054 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. 1058 1059 REGS is the register state resulting from single-stepping the 1060 displaced instruction. 1061 1062 CLOSURE is the result from the matching call to 1063 gdbarch_displaced_step_copy_insn. 1064 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. 1068 1069 For a general explanation of displaced stepping and how GDB uses it, 1070 see the comments in infrun.c. */ 1071 1072 extern bool gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch); 1073 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); 1077 1078 /* Prepare THREAD for it to displaced step the instruction at its current PC. 1079 1080 Throw an exception if any unexpected error happens. */ 1081 1082 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch *gdbarch); 1083 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); 1087 1088 /* Clean up after a displaced step of THREAD. */ 1089 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); 1093 1094 /* Return the closure associated to the displaced step buffer that is at ADDR. */ 1095 1096 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch *gdbarch); 1097 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); 1101 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. */ 1104 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); 1108 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. */ 1120 1121 extern bool gdbarch_relocate_instruction_p (struct gdbarch *gdbarch); 1122 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); 1126 1127 /* Refresh overlay mapped state for section OSECT. */ 1128 1129 extern bool gdbarch_overlay_update_p (struct gdbarch *gdbarch); 1130 1131 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect); 1132 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect); 1133 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update); 1134 1135 extern bool gdbarch_core_read_description_p (struct gdbarch *gdbarch); 1136 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); 1140 1141 /* Set if the address in N_SO or N_FUN stabs may be zero. */ 1142 1143 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch); 1144 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing); 1145 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. */ 1150 1151 extern bool gdbarch_process_record_p (struct gdbarch *gdbarch); 1152 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); 1156 1157 /* Save process state after a signal. 1158 Return -1 if something goes wrong, 0 otherwise. */ 1159 1160 extern bool gdbarch_process_record_signal_p (struct gdbarch *gdbarch); 1161 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); 1165 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.). */ 1173 1174 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch); 1175 1176 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo); 1177 extern enum gdb_signal gdbarch_gdb_signal_from_target (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); 1179 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. */ 1187 1188 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch); 1189 1190 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal); 1191 extern int gdbarch_gdb_signal_to_target (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); 1193 1194 /* Extra signal info inspection. 1195 1196 Return a type suitable to inspect extra signal information. */ 1197 1198 extern bool gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch); 1199 1200 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch); 1201 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch); 1202 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type); 1203 1204 /* Record architecture-specific information from the symbol table. */ 1205 1206 extern bool gdbarch_record_special_symbol_p (struct gdbarch *gdbarch); 1207 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); 1211 1212 /* Function for the 'catch syscall' feature. 1213 Get architecture-specific system calls information from registers. */ 1214 1215 extern bool gdbarch_get_syscall_number_p (struct gdbarch *gdbarch); 1216 1217 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread); 1218 extern LONGEST gdbarch_get_syscall_number (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); 1220 1221 /* The filename of the XML syscall for this architecture. */ 1222 1223 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch); 1224 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file); 1225 1226 /* Information about system calls from this architecture */ 1227 1228 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch); 1229 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info); 1230 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: 1235 1236 $10 ;; integer constant 10 1237 1238 in this case, this prefix would be the character `$'. */ 1239 1240 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch); 1241 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes); 1242 1243 /* A NULL-terminated array of suffixes used to mark an integer constant 1244 on the architecture's assembly. */ 1245 1246 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch); 1247 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes); 1248 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: 1252 1253 %eax ;; register eax 1254 1255 in this case, this prefix would be the character `%'. */ 1256 1257 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch); 1258 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes); 1259 1260 /* A NULL-terminated array of suffixes used to mark a register name on 1261 the architecture's assembly. */ 1262 1263 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch); 1264 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes); 1265 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: 1269 1270 (%eax) ;; indirecting eax 1271 1272 in this case, this prefix would be the charater `('. 1273 1274 Please note that we use the indirection prefix also for register 1275 displacement, e.g., `4(%eax)' on x86. */ 1276 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); 1279 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: 1283 1284 (%eax) ;; indirecting eax 1285 1286 in this case, this prefix would be the charater `)'. 1287 1288 Please note that we use the indirection suffix also for register 1289 displacement, e.g., `4(%eax)' on x86. */ 1290 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); 1293 1294 /* Prefix(es) used to name a register using GDB's nomenclature. 1295 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. */ 1300 1301 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch); 1302 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix); 1303 1304 /* Suffix used to name a register using GDB's nomenclature. */ 1305 1306 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch); 1307 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix); 1308 1309 /* Check if S is a single operand. 1310 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 1316 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 `('. */ 1321 1322 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch); 1323 1324 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s); 1325 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s); 1326 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand); 1327 1328 /* Function used to handle a "special case" in the parser. 1329 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: 1333 1334 [R0, #4] ;; displacing R0 by 4 1335 1336 Since the parser assumes that a register displacement is of the form: 1337 1338 <number> <indirection_prefix> <register_name> <indirection_suffix> 1339 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. 1342 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). */ 1349 1350 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch); 1351 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); 1355 1356 /* Perform arch-dependent adjustments to a register name. 1357 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. 1365 1366 To illustrate the example, consider the following probe argument 1367 (i386): 1368 1369 4@%ax 1370 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. 1377 1378 The rationale for this can be found at PR breakpoints/24541. */ 1379 1380 extern bool gdbarch_stap_adjust_register_p (struct gdbarch *gdbarch); 1381 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); 1385 1386 /* DTrace related functions. 1387 The expression to compute the NARTGth+1 argument to a DTrace USDT probe. 1388 NARG must be >= 0. */ 1389 1390 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch); 1391 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); 1395 1396 /* True if the given ADDR does not contain the instruction sequence 1397 corresponding to a disabled DTrace is-enabled probe. */ 1398 1399 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch); 1400 1401 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1402 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr); 1403 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled); 1404 1405 /* Enable a DTrace is-enabled probe at ADDR. */ 1406 1407 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch); 1408 1409 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1410 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr); 1411 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe); 1412 1413 /* Disable a DTrace is-enabled probe at ADDR. */ 1414 1415 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch); 1416 1417 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1418 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr); 1419 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe); 1420 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. */ 1426 1427 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch); 1428 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist); 1429 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. */ 1434 1435 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch); 1436 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints); 1437 1438 /* True if inferiors share an address space (e.g., uClinux). */ 1439 1440 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch); 1441 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch); 1442 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space); 1443 1444 /* True if a fast tracepoint can be set at an address. */ 1445 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); 1449 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. */ 1454 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); 1458 1459 /* Return the "auto" target charset. */ 1460 1461 typedef const char * (gdbarch_auto_charset_ftype) (); 1462 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch); 1463 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset); 1464 1465 /* Return the "auto" target wide charset. */ 1466 1467 typedef const char * (gdbarch_auto_wide_charset_ftype) (); 1468 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch); 1469 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset); 1470 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. 1473 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. */ 1477 1478 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch); 1479 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension); 1480 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. */ 1484 1485 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch); 1486 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system); 1487 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. */ 1493 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); 1497 1498 /* Implement the "info proc" command. */ 1499 1500 extern bool gdbarch_info_proc_p (struct gdbarch *gdbarch); 1501 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); 1505 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. */ 1509 1510 extern bool gdbarch_core_info_proc_p (struct gdbarch *gdbarch); 1511 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); 1515 1516 /* Iterate over all objfiles in the order that makes the most sense 1517 for the architecture to make global symbol searches. 1518 1519 CB is a callback function passed an objfile to be searched. The iteration stops 1520 if this function returns nonzero. 1521 1522 If not NULL, CURRENT_OBJFILE corresponds to the objfile being 1523 inspected when the symbol search was requested. */ 1524 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); 1528 1529 /* Ravenscar arch-dependent ops. */ 1530 1531 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch); 1532 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops); 1533 1534 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */ 1535 1536 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1537 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr); 1538 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call); 1539 1540 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */ 1541 1542 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1543 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr); 1544 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret); 1545 1546 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */ 1547 1548 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1549 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr); 1550 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump); 1551 1552 /* Return true if there's a program/permanent breakpoint planted in 1553 memory at ADDRESS, return false otherwise. */ 1554 1555 typedef bool (gdbarch_program_breakpoint_here_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 1556 extern bool gdbarch_program_breakpoint_here_p (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); 1558 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. */ 1563 1564 extern bool gdbarch_auxv_parse_p (struct gdbarch *gdbarch); 1565 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); 1569 1570 /* Print the description of a single auxv entry described by TYPE and VAL 1571 to FILE. */ 1572 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); 1576 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. */ 1581 1582 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range); 1583 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); 1584 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range); 1585 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. */ 1589 1590 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot); 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); 1593 1594 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap. 1595 Print a warning if it is not possible. */ 1596 1597 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size); 1598 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size); 1599 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap); 1600 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. */ 1605 1606 typedef std::string (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch); 1607 extern std::string gdbarch_gcc_target_options (struct gdbarch *gdbarch); 1608 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options); 1609 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. */ 1615 1616 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch); 1617 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch); 1618 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp); 1619 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. */ 1623 1624 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch); 1625 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch); 1626 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size); 1627 1628 /* Functions for allowing a target to modify its disassembler options. */ 1629 1630 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch); 1631 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit); 1632 1633 extern char ** gdbarch_disassembler_options (struct gdbarch *gdbarch); 1634 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options); 1635 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); 1638 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. */ 1643 1644 typedef ULONGEST (gdbarch_type_align_ftype) (struct gdbarch *gdbarch, struct type *type); 1645 extern ULONGEST gdbarch_type_align (struct gdbarch *gdbarch, struct type *type); 1646 extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align); 1647 1648 /* Return a string containing any flags for the given PC in the given FRAME. */ 1649 1650 typedef std::string (gdbarch_get_pc_address_flags_ftype) (frame_info_ptr frame, CORE_ADDR pc); 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); 1653 1654 /* Read core file mappings */ 1655 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); 1659