1 /* 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) 1998-2024 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, const frame_info_ptr &next_frame, int cookednum); 200 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, const frame_info_ptr &next_frame, 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 /* Write bytes in BUF to pseudo register with number PSEUDO_REG_NUM. 204 205 Raw registers backing the pseudo register should be written to using 206 NEXT_FRAME. */ 207 208 extern bool gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); 209 210 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &next_frame, int pseudo_reg_num, gdb::array_view<const gdb_byte> buf); 211 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, const frame_info_ptr &next_frame, int pseudo_reg_num, gdb::array_view<const gdb_byte> buf); 212 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write); 213 214 /* Write bytes to a pseudo register. 215 216 This is marked as deprecated because it gets passed a regcache for 217 implementations to write raw registers in. This doesn't work for unwound 218 frames, where the raw registers backing the pseudo registers may have been 219 saved elsewhere. 220 221 Implementations should be migrated to implement pseudo_register_write instead. */ 222 223 extern bool gdbarch_deprecated_pseudo_register_write_p (struct gdbarch *gdbarch); 224 225 typedef void (gdbarch_deprecated_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 226 extern void gdbarch_deprecated_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 227 extern void set_gdbarch_deprecated_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_deprecated_pseudo_register_write_ftype *deprecated_pseudo_register_write); 228 229 extern int gdbarch_num_regs (struct gdbarch *gdbarch); 230 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs); 231 232 /* This macro gives the number of pseudo-registers that live in the 233 register namespace but do not get fetched or stored on the target. 234 These pseudo-registers may be aliases for other registers, 235 combinations of other registers, or they may be computed by GDB. */ 236 237 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch); 238 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs); 239 240 /* Assemble agent expression bytecode to collect pseudo-register REG. 241 Return -1 if something goes wrong, 0 otherwise. */ 242 243 extern bool gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch); 244 245 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 246 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 247 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect); 248 249 /* Assemble agent expression bytecode to push the value of pseudo-register 250 REG on the interpreter stack. 251 Return -1 if something goes wrong, 0 otherwise. */ 252 253 extern bool gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch); 254 255 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 256 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 257 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack); 258 259 /* Some architectures can display additional information for specific 260 signals. 261 UIOUT is the output stream where the handler will place information. */ 262 263 extern bool gdbarch_report_signal_info_p (struct gdbarch *gdbarch); 264 265 typedef void (gdbarch_report_signal_info_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout, enum gdb_signal siggnal); 266 extern void gdbarch_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, enum gdb_signal siggnal); 267 extern void set_gdbarch_report_signal_info (struct gdbarch *gdbarch, gdbarch_report_signal_info_ftype *report_signal_info); 268 269 /* GDB's standard (or well known) register numbers. These can map onto 270 a real register or a pseudo (computed) register or not be defined at 271 all (-1). 272 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */ 273 274 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch); 275 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum); 276 277 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch); 278 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum); 279 280 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch); 281 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum); 282 283 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch); 284 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum); 285 286 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */ 287 288 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr); 289 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr); 290 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum); 291 292 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ 293 294 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr); 295 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr); 296 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum); 297 298 /* Convert from an sdb register number to an internal gdb register number. */ 299 300 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr); 301 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr); 302 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum); 303 304 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. 305 Return -1 for bad REGNUM. Note: Several targets get this wrong. */ 306 307 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr); 308 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr); 309 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum); 310 311 /* Return the name of register REGNR for the specified architecture. 312 REGNR can be any value greater than, or equal to zero, and less than 313 'gdbarch_num_cooked_regs (GDBARCH)'. If REGNR is not supported for 314 GDBARCH, then this function will return an empty string, this function 315 should never return nullptr. */ 316 317 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr); 318 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr); 319 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name); 320 321 /* Return the type of a register specified by the architecture. Only 322 the register cache should call this function directly; others should 323 use "register_type". */ 324 325 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr); 326 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); 327 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); 328 329 /* Generate a dummy frame_id for THIS_FRAME assuming that the frame is 330 a dummy frame. A dummy frame is created before an inferior call, 331 the frame_id returned here must match the frame_id that was built 332 for the inferior call. Usually this means the returned frame_id's 333 stack address should match the address returned by 334 gdbarch_push_dummy_call, and the returned frame_id's code address 335 should match the address at which the breakpoint was set in the dummy 336 frame. */ 337 338 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &this_frame); 339 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, const frame_info_ptr &this_frame); 340 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id); 341 342 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete 343 deprecated_fp_regnum. */ 344 345 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch); 346 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum); 347 348 extern bool gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); 349 350 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); 351 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); 352 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call); 353 354 extern enum call_dummy_location_type gdbarch_call_dummy_location (struct gdbarch *gdbarch); 355 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, enum call_dummy_location_type call_dummy_location); 356 357 extern bool gdbarch_push_dummy_code_p (struct gdbarch *gdbarch); 358 359 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); 360 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); 361 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code); 362 363 /* Return true if the code of FRAME is writable. */ 364 365 typedef int (gdbarch_code_of_frame_writable_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &frame); 366 extern int gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, const frame_info_ptr &frame); 367 extern void set_gdbarch_code_of_frame_writable (struct gdbarch *gdbarch, gdbarch_code_of_frame_writable_ftype *code_of_frame_writable); 368 369 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, int regnum, int all); 370 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, int regnum, int all); 371 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info); 372 373 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, const char *args); 374 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, const char *args); 375 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info); 376 377 extern bool gdbarch_print_vector_info_p (struct gdbarch *gdbarch); 378 379 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, const char *args); 380 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, const frame_info_ptr &frame, const char *args); 381 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info); 382 383 /* MAP a GDB RAW register number onto a simulator register number. See 384 also include/...-sim.h. */ 385 386 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr); 387 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr); 388 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno); 389 390 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum); 391 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum); 392 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register); 393 394 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum); 395 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum); 396 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register); 397 398 /* Determine the address where a longjmp will land and save this address 399 in PC. Return nonzero on success. 400 401 FRAME corresponds to the longjmp frame. */ 402 403 extern bool gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch); 404 405 typedef int (gdbarch_get_longjmp_target_ftype) (const frame_info_ptr &frame, CORE_ADDR *pc); 406 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, const frame_info_ptr &frame, CORE_ADDR *pc); 407 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target); 408 409 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch); 410 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion); 411 412 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type); 413 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type); 414 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p); 415 416 typedef int (gdbarch_register_to_value_ftype) (const frame_info_ptr &frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep); 417 extern int gdbarch_register_to_value (struct gdbarch *gdbarch, const frame_info_ptr &frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep); 418 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value); 419 420 typedef void (gdbarch_value_to_register_ftype) (const frame_info_ptr &frame, int regnum, struct type *type, const gdb_byte *buf); 421 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, const frame_info_ptr &frame, int regnum, struct type *type, const gdb_byte *buf); 422 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register); 423 424 /* Construct a value representing the contents of register REGNUM in 425 frame THIS_FRAME, interpreted as type TYPE. The routine needs to 426 allocate and return a struct value with all value attributes 427 (but not the value contents) filled in. */ 428 429 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, const frame_info_ptr &this_frame); 430 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, const frame_info_ptr &this_frame); 431 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register); 432 433 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 434 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 435 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address); 436 437 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 438 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 439 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer); 440 441 extern bool gdbarch_integer_to_address_p (struct gdbarch *gdbarch); 442 443 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 444 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 445 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address); 446 447 /* Return the return-value convention that will be used by FUNCTION 448 to return a value of type VALTYPE. FUNCTION may be NULL in which 449 case the return convention is computed based only on VALTYPE. 450 451 If READBUF is not NULL, extract the return value and save it in this buffer. 452 453 If WRITEBUF is not NULL, it contains a return value which will be 454 stored into the appropriate register. This can be used when we want 455 to force the value returned by a function (see the "return" command 456 for instance). 457 458 NOTE: it is better to implement return_value_as_value instead, as that 459 method can properly handle variably-sized types. */ 460 461 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); 462 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value); 463 464 /* Return the return-value convention that will be used by FUNCTION 465 to return a value of type VALTYPE. FUNCTION may be NULL in which 466 case the return convention is computed based only on VALTYPE. 467 468 If READ_VALUE is not NULL, extract the return value and save it in 469 this pointer. 470 471 If WRITEBUF is not NULL, it contains a return value which will be 472 stored into the appropriate register. This can be used when we want 473 to force the value returned by a function (see the "return" command 474 for instance). */ 475 476 typedef enum return_value_convention (gdbarch_return_value_as_value_ftype) (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, struct value **read_value, const gdb_byte *writebuf); 477 extern enum return_value_convention gdbarch_return_value_as_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, struct value **read_value, const gdb_byte *writebuf); 478 extern void set_gdbarch_return_value_as_value (struct gdbarch *gdbarch, gdbarch_return_value_as_value_ftype *return_value_as_value); 479 480 /* Return the address at which the value being returned from 481 the current function will be stored. This routine is only 482 called if the current function uses the the "struct return 483 convention". 484 485 May return 0 when unable to determine that address. */ 486 487 typedef CORE_ADDR (gdbarch_get_return_buf_addr_ftype) (struct type *val_type, const frame_info_ptr &cur_frame); 488 extern CORE_ADDR gdbarch_get_return_buf_addr (struct gdbarch *gdbarch, struct type *val_type, const frame_info_ptr &cur_frame); 489 extern void set_gdbarch_get_return_buf_addr (struct gdbarch *gdbarch, gdbarch_get_return_buf_addr_ftype *get_return_buf_addr); 490 491 /* Return true if the typedef record needs to be replaced.". 492 493 Return 0 by default */ 494 495 typedef bool (gdbarch_dwarf2_omit_typedef_p_ftype) (struct type *target_type, const char *producer, const char *name); 496 extern bool gdbarch_dwarf2_omit_typedef_p (struct gdbarch *gdbarch, struct type *target_type, const char *producer, const char *name); 497 extern void set_gdbarch_dwarf2_omit_typedef_p (struct gdbarch *gdbarch, gdbarch_dwarf2_omit_typedef_p_ftype *dwarf2_omit_typedef_p); 498 499 /* Update PC when trying to find a call site. This is useful on 500 architectures where the call site PC, as reported in the DWARF, can be 501 incorrect for some reason. 502 503 The passed-in PC will be an address in the inferior. GDB will have 504 already failed to find a call site at this PC. This function may 505 simply return its parameter if it thinks that should be the correct 506 address. */ 507 508 typedef CORE_ADDR (gdbarch_update_call_site_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 509 extern CORE_ADDR gdbarch_update_call_site_pc (struct gdbarch *gdbarch, CORE_ADDR pc); 510 extern void set_gdbarch_update_call_site_pc (struct gdbarch *gdbarch, gdbarch_update_call_site_pc_ftype *update_call_site_pc); 511 512 /* Return true if the return value of function is stored in the first hidden 513 parameter. In theory, this feature should be language-dependent, specified 514 by language and its ABI, such as C++. Unfortunately, compiler may 515 implement it to a target-dependent feature. So that we need such hook here 516 to be aware of this in GDB. */ 517 518 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type); 519 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type); 520 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); 521 522 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 523 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 524 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue); 525 526 extern bool gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch); 527 528 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 529 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 530 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue); 531 532 /* On some platforms, a single function may provide multiple entry points, 533 e.g. one that is used for function-pointer calls and a different one 534 that is used for direct function calls. 535 In order to ensure that breakpoints set on the function will trigger 536 no matter via which entry point the function is entered, a platform 537 may provide the skip_entrypoint callback. It is called with IP set 538 to the main entry point of a function (as determined by the symbol table), 539 and should return the address of the innermost entry point, where the 540 actual breakpoint needs to be set. Note that skip_entrypoint is used 541 by GDB common code even when debugging optimized code, where skip_prologue 542 is not used. */ 543 544 extern bool gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch); 545 546 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 547 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip); 548 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint); 549 550 typedef bool (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs); 551 extern bool gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs); 552 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than); 553 554 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 555 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 556 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc); 557 558 /* Return the breakpoint kind for this target based on *PCPTR. */ 559 560 typedef int (gdbarch_breakpoint_kind_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr); 561 extern int gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr); 562 extern void set_gdbarch_breakpoint_kind_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_pc_ftype *breakpoint_kind_from_pc); 563 564 /* Return the software breakpoint from KIND. KIND can have target 565 specific meaning like the Z0 kind parameter. 566 SIZE is set to the software breakpoint's length in memory. */ 567 568 typedef const gdb_byte * (gdbarch_sw_breakpoint_from_kind_ftype) (struct gdbarch *gdbarch, int kind, int *size); 569 extern const gdb_byte * gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size); 570 extern void set_gdbarch_sw_breakpoint_from_kind (struct gdbarch *gdbarch, gdbarch_sw_breakpoint_from_kind_ftype *sw_breakpoint_from_kind); 571 572 /* Return the breakpoint kind for this target based on the current 573 processor state (e.g. the current instruction mode on ARM) and the 574 *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc. */ 575 576 typedef int (gdbarch_breakpoint_kind_from_current_state_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr); 577 extern int gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR *pcptr); 578 extern void set_gdbarch_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, gdbarch_breakpoint_kind_from_current_state_ftype *breakpoint_kind_from_current_state); 579 580 extern bool gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch); 581 582 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 583 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 584 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address); 585 586 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 587 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 588 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint); 589 590 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 591 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 592 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint); 593 594 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch); 595 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break); 596 597 /* A function can be addressed by either its "pointer" (possibly a 598 descriptor address) or "entry point" (first executable instruction). 599 The method "convert_from_func_ptr_addr" converting the former to the 600 latter. gdbarch_deprecated_function_start_offset is being used to implement 601 a simplified subset of that functionality - the function's address 602 corresponds to the "function pointer" and the function's start 603 corresponds to the "function entry point" - and hence is redundant. */ 604 605 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch); 606 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset); 607 608 /* Return the remote protocol register number associated with this 609 register. Normally the identity mapping. */ 610 611 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno); 612 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno); 613 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number); 614 615 /* Fetch the target specific address used to represent a load module. */ 616 617 extern bool gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch); 618 619 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile); 620 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile); 621 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address); 622 623 /* Return the thread-local address at OFFSET in the thread-local 624 storage for the thread PTID and the shared library or executable 625 file given by LM_ADDR. If that block of thread-local storage hasn't 626 been allocated yet, this function may throw an error. LM_ADDR may 627 be zero for statically linked multithreaded inferiors. */ 628 629 extern bool gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch); 630 631 typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset); 632 extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset); 633 extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address); 634 635 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); 636 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); 637 638 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &next_frame); 639 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, const frame_info_ptr &next_frame); 640 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); 641 642 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &next_frame); 643 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, const frame_info_ptr &next_frame); 644 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); 645 646 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 647 frame-base. Enable frame-base before frame-unwind. */ 648 649 extern bool gdbarch_frame_num_args_p (struct gdbarch *gdbarch); 650 651 typedef int (gdbarch_frame_num_args_ftype) (const frame_info_ptr &frame); 652 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, const frame_info_ptr &frame); 653 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args); 654 655 extern bool gdbarch_frame_align_p (struct gdbarch *gdbarch); 656 657 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 658 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address); 659 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align); 660 661 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type); 662 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); 663 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr); 664 665 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch); 666 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size); 667 668 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 669 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 670 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr); 671 672 /* On some machines there are bits in addresses which are not really 673 part of the address, but are used by the kernel, the hardware, etc. 674 for special purposes. gdbarch_addr_bits_remove takes out any such bits so 675 we get a "real" address such as one would find in a symbol table. 676 This is used only for addresses of instructions, and even then I'm 677 not sure it's used in all contexts. It exists to deal with there 678 being a few stray bits in the PC which would mislead us, not as some 679 sort of generic thing to handle alignment or segmentation (it's 680 possible it should be in TARGET_READ_PC instead). */ 681 682 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 683 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); 684 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); 685 686 /* On some architectures, not all bits of a pointer are significant. 687 On AArch64, for example, the top bits of a pointer may carry a "tag", which 688 can be ignored by the kernel and the hardware. The "tag" can be regarded as 689 additional data associated with the pointer, but it is not part of the address. 690 691 Given a pointer for the architecture, this hook removes all the 692 non-significant bits and sign-extends things as needed. It gets used to remove 693 non-address bits from data pointers (for example, removing the AArch64 MTE tag 694 bits from a pointer) and from code pointers (removing the AArch64 PAC signature 695 from a pointer containing the return address). */ 696 697 typedef CORE_ADDR (gdbarch_remove_non_address_bits_ftype) (struct gdbarch *gdbarch, CORE_ADDR pointer); 698 extern CORE_ADDR gdbarch_remove_non_address_bits (struct gdbarch *gdbarch, CORE_ADDR pointer); 699 extern void set_gdbarch_remove_non_address_bits (struct gdbarch *gdbarch, gdbarch_remove_non_address_bits_ftype *remove_non_address_bits); 700 701 /* Return a string representation of the memory tag TAG. */ 702 703 typedef std::string (gdbarch_memtag_to_string_ftype) (struct gdbarch *gdbarch, struct value *tag); 704 extern std::string gdbarch_memtag_to_string (struct gdbarch *gdbarch, struct value *tag); 705 extern void set_gdbarch_memtag_to_string (struct gdbarch *gdbarch, gdbarch_memtag_to_string_ftype *memtag_to_string); 706 707 /* Return true if ADDRESS contains a tag and false otherwise. ADDRESS 708 must be either a pointer or a reference type. */ 709 710 typedef bool (gdbarch_tagged_address_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 711 extern bool gdbarch_tagged_address_p (struct gdbarch *gdbarch, CORE_ADDR address); 712 extern void set_gdbarch_tagged_address_p (struct gdbarch *gdbarch, gdbarch_tagged_address_p_ftype *tagged_address_p); 713 714 /* Return true if the tag from ADDRESS matches the memory tag for that 715 particular address. Return false otherwise. */ 716 717 typedef bool (gdbarch_memtag_matches_p_ftype) (struct gdbarch *gdbarch, struct value *address); 718 extern bool gdbarch_memtag_matches_p (struct gdbarch *gdbarch, struct value *address); 719 extern void set_gdbarch_memtag_matches_p (struct gdbarch *gdbarch, gdbarch_memtag_matches_p_ftype *memtag_matches_p); 720 721 /* Set the tags of type TAG_TYPE, for the memory address range 722 [ADDRESS, ADDRESS + LENGTH) to TAGS. 723 Return true if successful and false otherwise. */ 724 725 typedef bool (gdbarch_set_memtags_ftype) (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type); 726 extern bool gdbarch_set_memtags (struct gdbarch *gdbarch, struct value *address, size_t length, const gdb::byte_vector &tags, memtag_type tag_type); 727 extern void set_gdbarch_set_memtags (struct gdbarch *gdbarch, gdbarch_set_memtags_ftype *set_memtags); 728 729 /* Return the tag of type TAG_TYPE associated with the memory address ADDRESS, 730 assuming ADDRESS is tagged. */ 731 732 typedef struct value * (gdbarch_get_memtag_ftype) (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type); 733 extern struct value * gdbarch_get_memtag (struct gdbarch *gdbarch, struct value *address, memtag_type tag_type); 734 extern void set_gdbarch_get_memtag (struct gdbarch *gdbarch, gdbarch_get_memtag_ftype *get_memtag); 735 736 /* memtag_granule_size is the size of the allocation tag granule, for 737 architectures that support memory tagging. 738 This is 0 for architectures that do not support memory tagging. 739 For a non-zero value, this represents the number of bytes of memory per tag. */ 740 741 extern CORE_ADDR gdbarch_memtag_granule_size (struct gdbarch *gdbarch); 742 extern void set_gdbarch_memtag_granule_size (struct gdbarch *gdbarch, CORE_ADDR memtag_granule_size); 743 744 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that 745 indicates if the target needs software single step. An ISA method to 746 implement it. 747 748 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the 749 target can single step. If not, then implement single step using breakpoints. 750 751 Return a vector of addresses on which the software single step 752 breakpoints should be inserted. NULL means software single step is 753 not used. 754 Multiple breakpoints may be inserted for some instructions such as 755 conditional branch. However, each implementation must always evaluate 756 the condition and only put the breakpoint at the branch destination if 757 the condition is true, so that we ensure forward progress when stepping 758 past a conditional branch to self. */ 759 760 extern bool gdbarch_software_single_step_p (struct gdbarch *gdbarch); 761 762 typedef std::vector<CORE_ADDR> (gdbarch_software_single_step_ftype) (struct regcache *regcache); 763 extern std::vector<CORE_ADDR> gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache); 764 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step); 765 766 /* Return non-zero if the processor is executing a delay slot and a 767 further single-step is needed before the instruction finishes. */ 768 769 extern bool gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch); 770 771 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, const frame_info_ptr &frame); 772 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, const frame_info_ptr &frame); 773 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay); 774 775 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the 776 disassembler. Perhaps objdump can handle it? */ 777 778 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info); 779 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info); 780 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn); 781 782 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (const frame_info_ptr &frame, CORE_ADDR pc); 783 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, const frame_info_ptr &frame, CORE_ADDR pc); 784 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code); 785 786 /* Vtable of solib operations functions. */ 787 788 extern const solib_ops * gdbarch_so_ops (struct gdbarch *gdbarch); 789 extern void set_gdbarch_so_ops (struct gdbarch *gdbarch, const solib_ops * so_ops); 790 791 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER 792 evaluates non-zero, this is the address where the debugger will place 793 a step-resume breakpoint to get us past the dynamic linker. */ 794 795 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 796 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); 797 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver); 798 799 /* Some systems also have trampoline code for returning from shared libs. */ 800 801 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name); 802 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name); 803 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline); 804 805 /* Return true if PC lies inside an indirect branch thunk. */ 806 807 typedef bool (gdbarch_in_indirect_branch_thunk_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 808 extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, CORE_ADDR pc); 809 extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk); 810 811 /* A target might have problems with watchpoints as soon as the stack 812 frame of the current function has been destroyed. This mostly happens 813 as the first action in a function's epilogue. stack_frame_destroyed_p() 814 is defined to return a non-zero value if either the given addr is one 815 instruction after the stack destroying instruction up to the trailing 816 return instruction or if we can figure out that the stack frame has 817 already been invalidated regardless of the value of addr. Targets 818 which don't suffer from that problem could just let this functionality 819 untouched. */ 820 821 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 822 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr); 823 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p); 824 825 /* Process an ELF symbol in the minimal symbol table in a backend-specific 826 way. Normally this hook is supposed to do nothing, however if required, 827 then this hook can be used to apply tranformations to symbols that are 828 considered special in some way. For example the MIPS backend uses it 829 to interpret `st_other' information to mark compressed code symbols so 830 that they can be treated in the appropriate manner in the processing of 831 the main symbol table and DWARF-2 records. */ 832 833 extern bool gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch); 834 835 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym); 836 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym); 837 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special); 838 839 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym); 840 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym); 841 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special); 842 843 /* Process a symbol in the main symbol table in a backend-specific way. 844 Normally this hook is supposed to do nothing, however if required, 845 then this hook can be used to apply tranformations to symbols that 846 are considered special in some way. This is currently used by the 847 MIPS backend to make sure compressed code symbols have the ISA bit 848 set. This in turn is needed for symbol values seen in GDB to match 849 the values used at the runtime by the program itself, for function 850 and label references. */ 851 852 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile); 853 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile); 854 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special); 855 856 /* Adjust the address retrieved from a DWARF-2 record other than a line 857 entry in a backend-specific way. Normally this hook is supposed to 858 return the address passed unchanged, however if that is incorrect for 859 any reason, then this hook can be used to fix the address up in the 860 required manner. This is currently used by the MIPS backend to make 861 sure addresses in FDE, range records, etc. referring to compressed 862 code have the ISA bit set, matching line information and the symbol 863 table. */ 864 865 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc); 866 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc); 867 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr); 868 869 /* Adjust the address updated by a line entry in a backend-specific way. 870 Normally this hook is supposed to return the address passed unchanged, 871 however in the case of inconsistencies in these records, this hook can 872 be used to fix them up in the required manner. This is currently used 873 by the MIPS backend to make sure all line addresses in compressed code 874 are presented with the ISA bit set, which is not always the case. This 875 in turn ensures breakpoint addresses are correctly matched against the 876 stop PC. */ 877 878 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel); 879 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel); 880 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line); 881 882 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); 883 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); 884 885 /* See comment in target.h about continuable, steppable and 886 non-steppable watchpoints. */ 887 888 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); 889 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); 890 891 extern bool gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch); 892 893 typedef type_instance_flags (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class); 894 extern type_instance_flags gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class); 895 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags); 896 897 extern bool gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch); 898 899 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, type_instance_flags type_flags); 900 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, type_instance_flags type_flags); 901 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); 902 903 /* Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction. 904 FS are passed from the generic execute_cfa_program function. */ 905 906 typedef bool (gdbarch_execute_dwarf_cfa_vendor_op_ftype) (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs); 907 extern bool gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, struct dwarf2_frame_state *fs); 908 extern void set_gdbarch_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdbarch_execute_dwarf_cfa_vendor_op_ftype *execute_dwarf_cfa_vendor_op); 909 910 /* Return the appropriate type_flags for the supplied address class. 911 This function should return true if the address class was recognized and 912 type_flags was set, false otherwise. */ 913 914 extern bool gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch); 915 916 typedef bool (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr); 917 extern bool gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, type_instance_flags *type_flags_ptr); 918 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); 919 920 /* Is a register in a group */ 921 922 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup); 923 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, const struct reggroup *reggroup); 924 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p); 925 926 /* Fetch the pointer to the ith function argument. */ 927 928 extern bool gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch); 929 930 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (const frame_info_ptr &frame, int argi, struct type *type); 931 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, const frame_info_ptr &frame, int argi, struct type *type); 932 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument); 933 934 /* Iterate over all supported register notes in a core file. For each 935 supported register note section, the iterator must call CB and pass 936 CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit 937 the supported register note sections based on the current register 938 values. Otherwise it should enumerate all supported register note 939 sections. */ 940 941 extern bool gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch); 942 943 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache); 944 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache); 945 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections); 946 947 /* Create core file notes */ 948 949 extern bool gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch); 950 951 typedef gdb::unique_xmalloc_ptr<char> (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size); 952 extern gdb::unique_xmalloc_ptr<char> gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size); 953 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes); 954 955 /* Find core file memory regions */ 956 957 extern bool gdbarch_find_memory_regions_p (struct gdbarch *gdbarch); 958 959 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data); 960 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data); 961 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions); 962 963 /* Given a bfd OBFD, segment ADDRESS and SIZE, create a memory tag section to be dumped to a core file */ 964 965 extern bool gdbarch_create_memtag_section_p (struct gdbarch *gdbarch); 966 967 typedef asection * (gdbarch_create_memtag_section_ftype) (struct gdbarch *gdbarch, bfd *obfd, CORE_ADDR address, size_t size); 968 extern asection * gdbarch_create_memtag_section (struct gdbarch *gdbarch, bfd *obfd, CORE_ADDR address, size_t size); 969 extern void set_gdbarch_create_memtag_section (struct gdbarch *gdbarch, gdbarch_create_memtag_section_ftype *create_memtag_section); 970 971 /* Given a memory tag section OSEC, fill OSEC's contents with the appropriate tag data */ 972 973 extern bool gdbarch_fill_memtag_section_p (struct gdbarch *gdbarch); 974 975 typedef bool (gdbarch_fill_memtag_section_ftype) (struct gdbarch *gdbarch, asection *osec); 976 extern bool gdbarch_fill_memtag_section (struct gdbarch *gdbarch, asection *osec); 977 extern void set_gdbarch_fill_memtag_section (struct gdbarch *gdbarch, gdbarch_fill_memtag_section_ftype *fill_memtag_section); 978 979 /* Decode a memory tag SECTION and return the tags of type TYPE contained in 980 the memory range [ADDRESS, ADDRESS + LENGTH). 981 If no tags were found, return an empty vector. */ 982 983 extern bool gdbarch_decode_memtag_section_p (struct gdbarch *gdbarch); 984 985 typedef gdb::byte_vector (gdbarch_decode_memtag_section_ftype) (struct gdbarch *gdbarch, bfd_section *section, int type, CORE_ADDR address, size_t length); 986 extern gdb::byte_vector gdbarch_decode_memtag_section (struct gdbarch *gdbarch, bfd_section *section, int type, CORE_ADDR address, size_t length); 987 extern void set_gdbarch_decode_memtag_section (struct gdbarch *gdbarch, gdbarch_decode_memtag_section_ftype *decode_memtag_section); 988 989 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from 990 core file into buffer READBUF with length LEN. Return the number of bytes read 991 (zero indicates failure). 992 failed, otherwise, return the red length of READBUF. */ 993 994 extern bool gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch); 995 996 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 997 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 998 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries); 999 1000 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared 1001 libraries list from core file into buffer READBUF with length LEN. 1002 Return the number of bytes read (zero indicates failure). */ 1003 1004 extern bool gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch); 1005 1006 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 1007 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 1008 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix); 1009 1010 /* How the core target converts a PTID from a core file to a string. */ 1011 1012 extern bool gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch); 1013 1014 typedef std::string (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 1015 extern std::string gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); 1016 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str); 1017 1018 /* How the core target extracts the name of a thread from a core file. */ 1019 1020 extern bool gdbarch_core_thread_name_p (struct gdbarch *gdbarch); 1021 1022 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr); 1023 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr); 1024 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name); 1025 1026 /* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information 1027 from core file into buffer READBUF with length LEN. Return the number 1028 of bytes read (zero indicates EOF, a negative value indicates failure). */ 1029 1030 extern bool gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch); 1031 1032 typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 1033 extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); 1034 extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo); 1035 1036 /* Read x86 XSAVE layout information from core file into XSAVE_LAYOUT. 1037 Returns true if the layout was read successfully. */ 1038 1039 extern bool gdbarch_core_read_x86_xsave_layout_p (struct gdbarch *gdbarch); 1040 1041 typedef bool (gdbarch_core_read_x86_xsave_layout_ftype) (struct gdbarch *gdbarch, x86_xsave_layout &xsave_layout); 1042 extern bool gdbarch_core_read_x86_xsave_layout (struct gdbarch *gdbarch, x86_xsave_layout &xsave_layout); 1043 extern void set_gdbarch_core_read_x86_xsave_layout (struct gdbarch *gdbarch, gdbarch_core_read_x86_xsave_layout_ftype *core_read_x86_xsave_layout); 1044 1045 /* BFD target to use when generating a core file. */ 1046 1047 extern bool gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch); 1048 1049 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch); 1050 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target); 1051 1052 /* If the elements of C++ vtables are in-place function descriptors rather 1053 than normal function pointers (which may point to code or a descriptor), 1054 set this to one. */ 1055 1056 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch); 1057 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors); 1058 1059 /* Set if the least significant bit of the delta is used instead of the least 1060 significant bit of the pfn for pointers to virtual member functions. */ 1061 1062 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch); 1063 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta); 1064 1065 /* Advance PC to next instruction in order to skip a permanent breakpoint. */ 1066 1067 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache); 1068 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache); 1069 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint); 1070 1071 /* The maximum length of an instruction on this architecture in bytes. */ 1072 1073 extern bool gdbarch_max_insn_length_p (struct gdbarch *gdbarch); 1074 1075 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch); 1076 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length); 1077 1078 /* Copy the instruction at FROM to TO, and make any adjustments 1079 necessary to single-step it at that address. 1080 1081 REGS holds the state the thread's registers will have before 1082 executing the copied instruction; the PC in REGS will refer to FROM, 1083 not the copy at TO. The caller should update it to point at TO later. 1084 1085 Return a pointer to data of the architecture's choice to be passed 1086 to gdbarch_displaced_step_fixup. 1087 1088 For a general explanation of displaced stepping and how GDB uses it, 1089 see the comments in infrun.c. 1090 1091 The TO area is only guaranteed to have space for 1092 gdbarch_displaced_step_buffer_length (arch) octets, so this 1093 function must not write more octets than that to this area. 1094 1095 If you do not provide this function, GDB assumes that the 1096 architecture does not support displaced stepping. 1097 1098 If the instruction cannot execute out of line, return NULL. The 1099 core falls back to stepping past the instruction in-line instead in 1100 that case. */ 1101 1102 extern bool gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch); 1103 1104 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); 1105 extern displaced_step_copy_insn_closure_up gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 1106 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn); 1107 1108 /* Return true if GDB should use hardware single-stepping to execute a displaced 1109 step instruction. If false, GDB will simply restart execution at the 1110 displaced instruction location, and it is up to the target to ensure GDB will 1111 receive control again (e.g. by placing a software breakpoint instruction into 1112 the displaced instruction buffer). 1113 1114 The default implementation returns false on all targets that provide a 1115 gdbarch_software_single_step routine, and true otherwise. */ 1116 1117 typedef bool (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch); 1118 extern bool gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch); 1119 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep); 1120 1121 /* Fix up the state after attempting to single-step a displaced 1122 instruction, to give the result we would have gotten from stepping the 1123 instruction in its original location. 1124 1125 REGS is the register state resulting from single-stepping the 1126 displaced instruction. 1127 1128 CLOSURE is the result from the matching call to 1129 gdbarch_displaced_step_copy_insn. 1130 1131 FROM is the address where the instruction was original located, TO is 1132 the address of the displaced buffer where the instruction was copied 1133 to for stepping. 1134 1135 COMPLETED_P is true if GDB stopped as a result of the requested step 1136 having completed (e.g. the inferior stopped with SIGTRAP), otherwise 1137 COMPLETED_P is false and GDB stopped for some other reason. In the 1138 case where a single instruction is expanded to multiple replacement 1139 instructions for stepping then it may be necessary to read the current 1140 program counter from REGS in order to decide how far through the 1141 series of replacement instructions the inferior got before stopping, 1142 this may impact what will need fixing up in this function. 1143 1144 For a general explanation of displaced stepping and how GDB uses it, 1145 see the comments in infrun.c. */ 1146 1147 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_copy_insn_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs, bool completed_p); 1148 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_copy_insn_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs, bool completed_p); 1149 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup); 1150 1151 /* Prepare THREAD for it to displaced step the instruction at its current PC. 1152 1153 Throw an exception if any unexpected error happens. */ 1154 1155 extern bool gdbarch_displaced_step_prepare_p (struct gdbarch *gdbarch); 1156 1157 typedef displaced_step_prepare_status (gdbarch_displaced_step_prepare_ftype) (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc); 1158 extern displaced_step_prepare_status gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, thread_info *thread, CORE_ADDR &displaced_pc); 1159 extern void set_gdbarch_displaced_step_prepare (struct gdbarch *gdbarch, gdbarch_displaced_step_prepare_ftype *displaced_step_prepare); 1160 1161 /* Clean up after a displaced step of THREAD. 1162 1163 It is possible for the displaced-stepped instruction to have caused 1164 the thread to exit. The implementation can detect this case by 1165 checking if WS.kind is TARGET_WAITKIND_THREAD_EXITED. */ 1166 1167 typedef displaced_step_finish_status (gdbarch_displaced_step_finish_ftype) (struct gdbarch *gdbarch, thread_info *thread, const target_waitstatus &ws); 1168 extern displaced_step_finish_status gdbarch_displaced_step_finish (struct gdbarch *gdbarch, thread_info *thread, const target_waitstatus &ws); 1169 extern void set_gdbarch_displaced_step_finish (struct gdbarch *gdbarch, gdbarch_displaced_step_finish_ftype *displaced_step_finish); 1170 1171 /* Return the closure associated to the displaced step buffer that is at ADDR. */ 1172 1173 extern bool gdbarch_displaced_step_copy_insn_closure_by_addr_p (struct gdbarch *gdbarch); 1174 1175 typedef const displaced_step_copy_insn_closure * (gdbarch_displaced_step_copy_insn_closure_by_addr_ftype) (inferior *inf, CORE_ADDR addr); 1176 extern const displaced_step_copy_insn_closure * gdbarch_displaced_step_copy_insn_closure_by_addr (struct gdbarch *gdbarch, inferior *inf, CORE_ADDR addr); 1177 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); 1178 1179 /* PARENT_INF has forked and CHILD_PTID is the ptid of the child. Restore the 1180 contents of all displaced step buffers in the child's address space. */ 1181 1182 typedef void (gdbarch_displaced_step_restore_all_in_ptid_ftype) (inferior *parent_inf, ptid_t child_ptid); 1183 extern void gdbarch_displaced_step_restore_all_in_ptid (struct gdbarch *gdbarch, inferior *parent_inf, ptid_t child_ptid); 1184 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); 1185 1186 /* The maximum length in octets required for a displaced-step instruction 1187 buffer. By default this will be the same as gdbarch::max_insn_length, 1188 but should be overridden for architectures that might expand a 1189 displaced-step instruction to multiple replacement instructions. */ 1190 1191 extern ULONGEST gdbarch_displaced_step_buffer_length (struct gdbarch *gdbarch); 1192 extern void set_gdbarch_displaced_step_buffer_length (struct gdbarch *gdbarch, ULONGEST displaced_step_buffer_length); 1193 1194 /* Relocate an instruction to execute at a different address. OLDLOC 1195 is the address in the inferior memory where the instruction to 1196 relocate is currently at. On input, TO points to the destination 1197 where we want the instruction to be copied (and possibly adjusted) 1198 to. On output, it points to one past the end of the resulting 1199 instruction(s). The effect of executing the instruction at TO shall 1200 be the same as if executing it at FROM. For example, call 1201 instructions that implicitly push the return address on the stack 1202 should be adjusted to return to the instruction after OLDLOC; 1203 relative branches, and other PC-relative instructions need the 1204 offset adjusted; etc. */ 1205 1206 extern bool gdbarch_relocate_instruction_p (struct gdbarch *gdbarch); 1207 1208 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 1209 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 1210 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction); 1211 1212 /* Refresh overlay mapped state for section OSECT. */ 1213 1214 extern bool gdbarch_overlay_update_p (struct gdbarch *gdbarch); 1215 1216 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect); 1217 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect); 1218 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update); 1219 1220 extern bool gdbarch_core_read_description_p (struct gdbarch *gdbarch); 1221 1222 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 1223 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 1224 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description); 1225 1226 /* Set if the address in N_SO or N_FUN stabs may be zero. */ 1227 1228 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch); 1229 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing); 1230 1231 /* Parse the instruction at ADDR storing in the record execution log 1232 the registers REGCACHE and memory ranges that will be affected when 1233 the instruction executes, along with their current values. 1234 Return -1 if something goes wrong, 0 otherwise. */ 1235 1236 extern bool gdbarch_process_record_p (struct gdbarch *gdbarch); 1237 1238 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 1239 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 1240 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record); 1241 1242 /* Save process state after a signal. 1243 Return -1 if something goes wrong, 0 otherwise. */ 1244 1245 extern bool gdbarch_process_record_signal_p (struct gdbarch *gdbarch); 1246 1247 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal); 1248 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal); 1249 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal); 1250 1251 /* Signal translation: translate inferior's signal (target's) number 1252 into GDB's representation. The implementation of this method must 1253 be host independent. IOW, don't rely on symbols of the NAT_FILE 1254 header (the nm-*.h files), the host <signal.h> header, or similar 1255 headers. This is mainly used when cross-debugging core files --- 1256 "Live" targets hide the translation behind the target interface 1257 (target_wait, target_resume, etc.). */ 1258 1259 extern bool gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch); 1260 1261 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo); 1262 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo); 1263 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target); 1264 1265 /* Signal translation: translate the GDB's internal signal number into 1266 the inferior's signal (target's) representation. The implementation 1267 of this method must be host independent. IOW, don't rely on symbols 1268 of the NAT_FILE header (the nm-*.h files), the host <signal.h> 1269 header, or similar headers. 1270 Return the target signal number if found, or -1 if the GDB internal 1271 signal number is invalid. */ 1272 1273 extern bool gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch); 1274 1275 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal); 1276 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal); 1277 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target); 1278 1279 /* Extra signal info inspection. 1280 1281 Return a type suitable to inspect extra signal information. */ 1282 1283 extern bool gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch); 1284 1285 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch); 1286 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch); 1287 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type); 1288 1289 /* Record architecture-specific information from the symbol table. */ 1290 1291 extern bool gdbarch_record_special_symbol_p (struct gdbarch *gdbarch); 1292 1293 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 1294 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 1295 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol); 1296 1297 /* Function for the 'catch syscall' feature. 1298 Get architecture-specific system calls information from registers. */ 1299 1300 extern bool gdbarch_get_syscall_number_p (struct gdbarch *gdbarch); 1301 1302 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread); 1303 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread); 1304 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number); 1305 1306 /* The filename of the XML syscall for this architecture. */ 1307 1308 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch); 1309 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file); 1310 1311 /* Information about system calls from this architecture */ 1312 1313 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch); 1314 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info); 1315 1316 /* SystemTap related fields and functions. 1317 A NULL-terminated array of prefixes used to mark an integer constant 1318 on the architecture's assembly. 1319 For example, on x86 integer constants are written as: 1320 1321 $10 ;; integer constant 10 1322 1323 in this case, this prefix would be the character `$'. */ 1324 1325 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch); 1326 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes); 1327 1328 /* A NULL-terminated array of suffixes used to mark an integer constant 1329 on the architecture's assembly. */ 1330 1331 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch); 1332 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes); 1333 1334 /* A NULL-terminated array of prefixes used to mark a register name on 1335 the architecture's assembly. 1336 For example, on x86 the register name is written as: 1337 1338 %eax ;; register eax 1339 1340 in this case, this prefix would be the character `%'. */ 1341 1342 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch); 1343 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes); 1344 1345 /* A NULL-terminated array of suffixes used to mark a register name on 1346 the architecture's assembly. */ 1347 1348 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch); 1349 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes); 1350 1351 /* A NULL-terminated array of prefixes used to mark a register 1352 indirection on the architecture's assembly. 1353 For example, on x86 the register indirection is written as: 1354 1355 (%eax) ;; indirecting eax 1356 1357 in this case, this prefix would be the charater `('. 1358 1359 Please note that we use the indirection prefix also for register 1360 displacement, e.g., `4(%eax)' on x86. */ 1361 1362 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch); 1363 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes); 1364 1365 /* A NULL-terminated array of suffixes used to mark a register 1366 indirection on the architecture's assembly. 1367 For example, on x86 the register indirection is written as: 1368 1369 (%eax) ;; indirecting eax 1370 1371 in this case, this prefix would be the charater `)'. 1372 1373 Please note that we use the indirection suffix also for register 1374 displacement, e.g., `4(%eax)' on x86. */ 1375 1376 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch); 1377 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes); 1378 1379 /* Prefix(es) used to name a register using GDB's nomenclature. 1380 1381 For example, on PPC a register is represented by a number in the assembly 1382 language (e.g., `10' is the 10th general-purpose register). However, 1383 inside GDB this same register has an `r' appended to its name, so the 10th 1384 register would be represented as `r10' internally. */ 1385 1386 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch); 1387 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix); 1388 1389 /* Suffix used to name a register using GDB's nomenclature. */ 1390 1391 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch); 1392 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix); 1393 1394 /* Check if S is a single operand. 1395 1396 Single operands can be: 1397 - Literal integers, e.g. `$10' on x86 1398 - Register access, e.g. `%eax' on x86 1399 - Register indirection, e.g. `(%eax)' on x86 1400 - Register displacement, e.g. `4(%eax)' on x86 1401 1402 This function should check for these patterns on the string 1403 and return 1 if some were found, or zero otherwise. Please try to match 1404 as much info as you can from the string, i.e., if you have to match 1405 something like `(%', do not match just the `('. */ 1406 1407 extern bool gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch); 1408 1409 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s); 1410 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s); 1411 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand); 1412 1413 /* Function used to handle a "special case" in the parser. 1414 1415 A "special case" is considered to be an unknown token, i.e., a token 1416 that the parser does not know how to parse. A good example of special 1417 case would be ARM's register displacement syntax: 1418 1419 [R0, #4] ;; displacing R0 by 4 1420 1421 Since the parser assumes that a register displacement is of the form: 1422 1423 <number> <indirection_prefix> <register_name> <indirection_suffix> 1424 1425 it means that it will not be able to recognize and parse this odd syntax. 1426 Therefore, we should add a special case function that will handle this token. 1427 1428 This function should generate the proper expression form of the expression 1429 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode' 1430 and so on). It should also return 1 if the parsing was successful, or zero 1431 if the token was not recognized as a special token (in this case, returning 1432 zero means that the special parser is deferring the parsing to the generic 1433 parser), and should advance the buffer pointer (p->arg). */ 1434 1435 extern bool gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch); 1436 1437 typedef expr::operation_up (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p); 1438 extern expr::operation_up gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p); 1439 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token); 1440 1441 /* Perform arch-dependent adjustments to a register name. 1442 1443 In very specific situations, it may be necessary for the register 1444 name present in a SystemTap probe's argument to be handled in a 1445 special way. For example, on i386, GCC may over-optimize the 1446 register allocation and use smaller registers than necessary. In 1447 such cases, the client that is reading and evaluating the SystemTap 1448 probe (ourselves) will need to actually fetch values from the wider 1449 version of the register in question. 1450 1451 To illustrate the example, consider the following probe argument 1452 (i386): 1453 1454 4@%ax 1455 1456 This argument says that its value can be found at the %ax register, 1457 which is a 16-bit register. However, the argument's prefix says 1458 that its type is "uint32_t", which is 32-bit in size. Therefore, in 1459 this case, GDB should actually fetch the probe's value from register 1460 %eax, not %ax. In this scenario, this function would actually 1461 replace the register name from %ax to %eax. 1462 1463 The rationale for this can be found at PR breakpoints/24541. */ 1464 1465 extern bool gdbarch_stap_adjust_register_p (struct gdbarch *gdbarch); 1466 1467 typedef std::string (gdbarch_stap_adjust_register_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum); 1468 extern std::string gdbarch_stap_adjust_register (struct gdbarch *gdbarch, struct stap_parse_info *p, const std::string ®name, int regnum); 1469 extern void set_gdbarch_stap_adjust_register (struct gdbarch *gdbarch, gdbarch_stap_adjust_register_ftype *stap_adjust_register); 1470 1471 /* DTrace related functions. 1472 The expression to compute the NARTGth+1 argument to a DTrace USDT probe. 1473 NARG must be >= 0. */ 1474 1475 extern bool gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch); 1476 1477 typedef expr::operation_up (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, int narg); 1478 extern expr::operation_up gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, int narg); 1479 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument); 1480 1481 /* True if the given ADDR does not contain the instruction sequence 1482 corresponding to a disabled DTrace is-enabled probe. */ 1483 1484 extern bool gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch); 1485 1486 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1487 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr); 1488 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled); 1489 1490 /* Enable a DTrace is-enabled probe at ADDR. */ 1491 1492 extern bool gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch); 1493 1494 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1495 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr); 1496 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe); 1497 1498 /* Disable a DTrace is-enabled probe at ADDR. */ 1499 1500 extern bool gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch); 1501 1502 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1503 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr); 1504 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe); 1505 1506 /* True if the list of shared libraries is one and only for all 1507 processes, as opposed to a list of shared libraries per inferior. 1508 This usually means that all processes, although may or may not share 1509 an address space, will see the same set of symbols at the same 1510 addresses. */ 1511 1512 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch); 1513 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist); 1514 1515 /* On some targets, even though each inferior has its own private 1516 address space, the debug interface takes care of making breakpoints 1517 visible to all address spaces automatically. For such cases, 1518 this property should be set to true. */ 1519 1520 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch); 1521 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints); 1522 1523 /* True if inferiors share an address space (e.g., uClinux). */ 1524 1525 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch); 1526 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch); 1527 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space); 1528 1529 /* True if a fast tracepoint can be set at an address. */ 1530 1531 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg); 1532 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg); 1533 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at); 1534 1535 /* Guess register state based on tracepoint location. Used for tracepoints 1536 where no registers have been collected, but there's only one location, 1537 allowing us to guess the PC value, and perhaps some other registers. 1538 On entry, regcache has all registers marked as unavailable. */ 1539 1540 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 1541 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 1542 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers); 1543 1544 /* Return the "auto" target charset. */ 1545 1546 typedef const char * (gdbarch_auto_charset_ftype) (); 1547 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch); 1548 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset); 1549 1550 /* Return the "auto" target wide charset. */ 1551 1552 typedef const char * (gdbarch_auto_wide_charset_ftype) (); 1553 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch); 1554 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset); 1555 1556 /* If non-empty, this is a file extension that will be opened in place 1557 of the file extension reported by the shared library list. 1558 1559 This is most useful for toolchains that use a post-linker tool, 1560 where the names of the files run on the target differ in extension 1561 compared to the names of the files GDB should load for debug info. */ 1562 1563 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch); 1564 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension); 1565 1566 /* If true, the target OS has DOS-based file system semantics. That 1567 is, absolute paths include a drive name, and the backslash is 1568 considered a directory separator. */ 1569 1570 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch); 1571 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system); 1572 1573 /* Generate bytecodes to collect the return address in a frame. 1574 Since the bytecodes run on the target, possibly with GDB not even 1575 connected, the full unwinding machinery is not available, and 1576 typically this function will issue bytecodes for one or more likely 1577 places that the return address may be found. */ 1578 1579 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1580 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1581 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address); 1582 1583 /* Implement the "info proc" command. */ 1584 1585 extern bool gdbarch_info_proc_p (struct gdbarch *gdbarch); 1586 1587 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what); 1588 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what); 1589 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc); 1590 1591 /* Implement the "info proc" command for core files. Noe that there 1592 are two "info_proc"-like methods on gdbarch -- one for core files, 1593 one for live targets. */ 1594 1595 extern bool gdbarch_core_info_proc_p (struct gdbarch *gdbarch); 1596 1597 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what); 1598 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what); 1599 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc); 1600 1601 /* Iterate over all objfiles in the order that makes the most sense 1602 for the architecture to make global symbol searches. 1603 1604 CB is a callback function passed an objfile to be searched. The iteration stops 1605 if this function returns nonzero. 1606 1607 If not NULL, CURRENT_OBJFILE corresponds to the objfile being 1608 inspected when the symbol search was requested. */ 1609 1610 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); 1611 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); 1612 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); 1613 1614 /* Ravenscar arch-dependent ops. */ 1615 1616 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch); 1617 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops); 1618 1619 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */ 1620 1621 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1622 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr); 1623 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call); 1624 1625 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */ 1626 1627 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1628 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr); 1629 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret); 1630 1631 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */ 1632 1633 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 1634 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr); 1635 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump); 1636 1637 /* Return true if there's a program/permanent breakpoint planted in 1638 memory at ADDRESS, return false otherwise. */ 1639 1640 typedef bool (gdbarch_program_breakpoint_here_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 1641 extern bool gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, CORE_ADDR address); 1642 extern void set_gdbarch_program_breakpoint_here_p (struct gdbarch *gdbarch, gdbarch_program_breakpoint_here_p_ftype *program_breakpoint_here_p); 1643 1644 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. 1645 Return 0 if *READPTR is already at the end of the buffer. 1646 Return -1 if there is insufficient buffer for a whole entry. 1647 Return 1 if an entry was read into *TYPEP and *VALP. */ 1648 1649 extern bool gdbarch_auxv_parse_p (struct gdbarch *gdbarch); 1650 1651 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, const gdb_byte **readptr, const gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); 1652 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, const gdb_byte **readptr, const gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); 1653 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse); 1654 1655 /* Print the description of a single auxv entry described by TYPE and VAL 1656 to FILE. */ 1657 1658 typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val); 1659 extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val); 1660 extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry); 1661 1662 /* Find the address range of the current inferior's vsyscall/vDSO, and 1663 write it to *RANGE. If the vsyscall's length can't be determined, a 1664 range with zero length is returned. Returns true if the vsyscall is 1665 found, false otherwise. */ 1666 1667 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range); 1668 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); 1669 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range); 1670 1671 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior. 1672 PROT has GDB_MMAP_PROT_* bitmask format. 1673 Throw an error if it is not possible. Returned address is always valid. */ 1674 1675 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot); 1676 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot); 1677 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap); 1678 1679 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap. 1680 Print a warning if it is not possible. */ 1681 1682 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size); 1683 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size); 1684 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap); 1685 1686 /* Return string (caller has to use xfree for it) with options for GCC 1687 to produce code for this target, typically "-m64", "-m32" or "-m31". 1688 These options are put before CU's DW_AT_producer compilation options so that 1689 they can override it. */ 1690 1691 typedef std::string (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch); 1692 extern std::string gdbarch_gcc_target_options (struct gdbarch *gdbarch); 1693 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options); 1694 1695 /* Return a regular expression that matches names used by this 1696 architecture in GNU configury triplets. The result is statically 1697 allocated and must not be freed. The default implementation simply 1698 returns the BFD architecture name, which is correct in nearly every 1699 case. */ 1700 1701 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch); 1702 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch); 1703 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp); 1704 1705 /* Return the size in 8-bit bytes of an addressable memory unit on this 1706 architecture. This corresponds to the number of 8-bit bytes associated to 1707 each address in memory. */ 1708 1709 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch); 1710 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch); 1711 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size); 1712 1713 /* Functions for allowing a target to modify its disassembler options. */ 1714 1715 extern const char * gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch); 1716 extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit); 1717 1718 extern std::string * gdbarch_disassembler_options (struct gdbarch *gdbarch); 1719 extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, std::string * disassembler_options); 1720 1721 extern const disasm_options_and_args_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch); 1722 extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_and_args_t * valid_disassembler_options); 1723 1724 /* Type alignment override method. Return the architecture specific 1725 alignment required for TYPE. If there is no special handling 1726 required for TYPE then return the value 0, GDB will then apply the 1727 default rules as laid out in gdbtypes.c:type_align. */ 1728 1729 typedef ULONGEST (gdbarch_type_align_ftype) (struct gdbarch *gdbarch, struct type *type); 1730 extern ULONGEST gdbarch_type_align (struct gdbarch *gdbarch, struct type *type); 1731 extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align); 1732 1733 /* Return a string containing any flags for the given PC in the given FRAME. */ 1734 1735 typedef std::string (gdbarch_get_pc_address_flags_ftype) (const frame_info_ptr &frame, CORE_ADDR pc); 1736 extern std::string gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, const frame_info_ptr &frame, CORE_ADDR pc); 1737 extern void set_gdbarch_get_pc_address_flags (struct gdbarch *gdbarch, gdbarch_get_pc_address_flags_ftype *get_pc_address_flags); 1738 1739 /* Read core file mappings */ 1740 1741 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); 1742 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); 1743 extern void set_gdbarch_read_core_file_mappings (struct gdbarch *gdbarch, gdbarch_read_core_file_mappings_ftype *read_core_file_mappings); 1744 1745 /* Return true if the target description for all threads should be read from the 1746 target description core file note(s). Return false if the target description 1747 for all threads should be inferred from the core file contents/sections. 1748 1749 The corefile's bfd is passed through COREFILE_BFD. */ 1750 1751 typedef bool (gdbarch_use_target_description_from_corefile_notes_ftype) (struct gdbarch *gdbarch, struct bfd *corefile_bfd); 1752 extern bool gdbarch_use_target_description_from_corefile_notes (struct gdbarch *gdbarch, struct bfd *corefile_bfd); 1753 extern void set_gdbarch_use_target_description_from_corefile_notes (struct gdbarch *gdbarch, gdbarch_use_target_description_from_corefile_notes_ftype *use_target_description_from_corefile_notes); 1754
Indexes created Sun Mar 01 05:31:48 UTC 2026