1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */ 2 /* vi:set ro: */ 3 4 /* Dynamic architecture support for GDB, the GNU debugger. 5 6 Copyright (C) 1998-2013 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 /* This file was created with the aid of ``gdbarch.sh''. 24 25 The Bourne shell script ``gdbarch.sh'' creates the files 26 ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them 27 against the existing ``gdbarch.[hc]''. Any differences found 28 being reported. 29 30 If editing this file, please also run gdbarch.sh and merge any 31 changes into that script. Conversely, when making sweeping changes 32 to this file, modifying gdbarch.sh and using its output may prove 33 easier. */ 34 35 #ifndef GDBARCH_H 36 #define GDBARCH_H 37 38 struct floatformat; 39 struct ui_file; 40 struct frame_info; 41 struct value; 42 struct objfile; 43 struct obj_section; 44 struct minimal_symbol; 45 struct regcache; 46 struct reggroup; 47 struct regset; 48 struct disassemble_info; 49 struct target_ops; 50 struct obstack; 51 struct bp_target_info; 52 struct target_desc; 53 struct displaced_step_closure; 54 struct core_regset_section; 55 struct syscall; 56 struct agent_expr; 57 struct axs_value; 58 struct stap_parse_info; 59 struct ravenscar_arch_ops; 60 struct elf_internal_linux_prpsinfo; 61 62 /* The architecture associated with the inferior through the 63 connection to the target. 64 65 The architecture vector provides some information that is really a 66 property of the inferior, accessed through a particular target: 67 ptrace operations; the layout of certain RSP packets; the solib_ops 68 vector; etc. To differentiate architecture accesses to 69 per-inferior/target properties from 70 per-thread/per-frame/per-objfile properties, accesses to 71 per-inferior/target properties should be made through this 72 gdbarch. */ 73 74 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */ 75 extern struct gdbarch *target_gdbarch (void); 76 77 /* The initial, default architecture. It uses host values (for want of a better 78 choice). */ 79 extern struct gdbarch startup_gdbarch; 80 81 82 /* Callback type for the 'iterate_over_objfiles_in_search_order' 83 gdbarch method. */ 84 85 typedef int (iterate_over_objfiles_in_search_order_cb_ftype) 86 (struct objfile *objfile, void *cb_data); 87 88 89 /* The following are pre-initialized by GDBARCH. */ 90 91 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch); 92 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */ 93 94 extern int gdbarch_byte_order (struct gdbarch *gdbarch); 95 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */ 96 97 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch); 98 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */ 99 100 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch); 101 /* set_gdbarch_osabi() - not applicable - pre-initialized. */ 102 103 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch); 104 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */ 105 106 107 /* The following are initialized by the target dependent code. */ 108 109 /* The bit byte-order has to do just with numbering of bits in debugging symbols 110 and such. Conceptually, it's quite separate from byte/word byte order. */ 111 112 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch); 113 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian); 114 115 /* Number of bits in a char or unsigned char for the target machine. 116 Just like CHAR_BIT in <limits.h> but describes the target machine. 117 v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: 118 119 Number of bits in a short or unsigned short for the target machine. */ 120 121 extern int gdbarch_short_bit (struct gdbarch *gdbarch); 122 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit); 123 124 /* Number of bits in an int or unsigned int for the target machine. */ 125 126 extern int gdbarch_int_bit (struct gdbarch *gdbarch); 127 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit); 128 129 /* Number of bits in a long or unsigned long for the target machine. */ 130 131 extern int gdbarch_long_bit (struct gdbarch *gdbarch); 132 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); 133 134 /* Number of bits in a long long or unsigned long long for the target 135 machine. */ 136 137 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); 138 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); 139 140 /* Alignment of a long long or unsigned long long for the target 141 machine. */ 142 143 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch); 144 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit); 145 146 /* The ABI default bit-size and format for "half", "float", "double", and 147 "long double". These bit/format pairs should eventually be combined 148 into a single object. For the moment, just initialize them as a pair. 149 Each format describes both the big and little endian layouts (if 150 useful). */ 151 152 extern int gdbarch_half_bit (struct gdbarch *gdbarch); 153 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit); 154 155 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch); 156 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format); 157 158 extern int gdbarch_float_bit (struct gdbarch *gdbarch); 159 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit); 160 161 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch); 162 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format); 163 164 extern int gdbarch_double_bit (struct gdbarch *gdbarch); 165 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit); 166 167 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch); 168 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format); 169 170 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch); 171 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit); 172 173 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch); 174 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format); 175 176 /* For most targets, a pointer on the target and its representation as an 177 address in GDB have the same size and "look the same". For such a 178 target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit 179 / addr_bit will be set from it. 180 181 If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably 182 also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and 183 gdbarch_address_to_pointer as well. 184 185 ptr_bit is the size of a pointer on the target */ 186 187 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch); 188 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit); 189 190 /* addr_bit is the size of a target address as represented in gdb */ 191 192 extern int gdbarch_addr_bit (struct gdbarch *gdbarch); 193 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit); 194 195 /* dwarf2_addr_size is the target address size as used in the Dwarf debug 196 info. For .debug_frame FDEs, this is supposed to be the target address 197 size from the associated CU header, and which is equivalent to the 198 DWARF2_ADDR_SIZE as defined by the target specific GCC back-end. 199 Unfortunately there is no good way to determine this value. Therefore 200 dwarf2_addr_size simply defaults to the target pointer size. 201 202 dwarf2_addr_size is not used for .eh_frame FDEs, which are generally 203 defined using the target's pointer size so far. 204 205 Note that dwarf2_addr_size only needs to be redefined by a target if the 206 GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size, 207 and if Dwarf versions < 4 need to be supported. */ 208 209 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch); 210 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size); 211 212 /* One if `char' acts like `signed char', zero if `unsigned char'. */ 213 214 extern int gdbarch_char_signed (struct gdbarch *gdbarch); 215 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed); 216 217 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch); 218 219 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache); 220 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache); 221 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc); 222 223 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch); 224 225 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val); 226 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val); 227 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc); 228 229 /* Function for getting target's idea of a frame pointer. FIXME: GDB's 230 whole scheme for dealing with "frames" and "frame pointers" needs a 231 serious shakedown. */ 232 233 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 234 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset); 235 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer); 236 237 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch); 238 239 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 240 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); 241 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read); 242 243 /* Read a register into a new struct value. If the register is wholly 244 or partly unavailable, this should call mark_value_bytes_unavailable 245 as appropriate. If this is defined, then pseudo_register_read will 246 never be called. */ 247 248 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch); 249 250 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); 251 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); 252 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value); 253 254 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); 255 256 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 257 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf); 258 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write); 259 260 extern int gdbarch_num_regs (struct gdbarch *gdbarch); 261 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs); 262 263 /* This macro gives the number of pseudo-registers that live in the 264 register namespace but do not get fetched or stored on the target. 265 These pseudo-registers may be aliases for other registers, 266 combinations of other registers, or they may be computed by GDB. */ 267 268 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch); 269 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs); 270 271 /* Assemble agent expression bytecode to collect pseudo-register REG. 272 Return -1 if something goes wrong, 0 otherwise. */ 273 274 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch); 275 276 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 277 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 278 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect); 279 280 /* Assemble agent expression bytecode to push the value of pseudo-register 281 REG on the interpreter stack. 282 Return -1 if something goes wrong, 0 otherwise. */ 283 284 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch); 285 286 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 287 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg); 288 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack); 289 290 /* GDB's standard (or well known) register numbers. These can map onto 291 a real register or a pseudo (computed) register or not be defined at 292 all (-1). 293 gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */ 294 295 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch); 296 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum); 297 298 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch); 299 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum); 300 301 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch); 302 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum); 303 304 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch); 305 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum); 306 307 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */ 308 309 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr); 310 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr); 311 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum); 312 313 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ 314 315 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr); 316 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr); 317 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum); 318 319 /* Convert from an sdb register number to an internal gdb register number. */ 320 321 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr); 322 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr); 323 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum); 324 325 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */ 326 327 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr); 328 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr); 329 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum); 330 331 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr); 332 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr); 333 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name); 334 335 /* Return the type of a register specified by the architecture. Only 336 the register cache should call this function directly; others should 337 use "register_type". */ 338 339 extern int gdbarch_register_type_p (struct gdbarch *gdbarch); 340 341 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr); 342 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); 343 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); 344 345 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */ 346 347 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch); 348 349 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame); 350 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame); 351 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id); 352 353 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete 354 deprecated_fp_regnum. */ 355 356 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch); 357 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum); 358 359 /* See gdbint.texinfo. See infcall.c. */ 360 361 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); 362 363 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, int struct_return, CORE_ADDR struct_addr); 364 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, int struct_return, CORE_ADDR struct_addr); 365 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call); 366 367 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch); 368 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location); 369 370 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch); 371 372 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); 373 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); 374 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code); 375 376 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 377 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all); 378 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info); 379 380 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch); 381 382 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 383 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 384 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info); 385 386 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch); 387 388 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 389 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args); 390 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info); 391 392 /* MAP a GDB RAW register number onto a simulator register number. See 393 also include/...-sim.h. */ 394 395 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr); 396 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr); 397 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno); 398 399 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum); 400 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum); 401 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register); 402 403 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum); 404 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum); 405 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register); 406 407 /* setjmp/longjmp support. */ 408 409 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch); 410 411 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc); 412 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc); 413 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target); 414 415 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch); 416 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion); 417 418 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type); 419 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type); 420 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p); 421 422 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep); 423 extern int gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep); 424 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value); 425 426 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 427 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf); 428 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register); 429 430 /* Construct a value representing the contents of register REGNUM in 431 frame FRAME, interpreted as type TYPE. The routine needs to 432 allocate and return a struct value with all value attributes 433 (but not the value contents) filled in. */ 434 435 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame); 436 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame); 437 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register); 438 439 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 440 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 441 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address); 442 443 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 444 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr); 445 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer); 446 447 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch); 448 449 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 450 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf); 451 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address); 452 453 /* Return the return-value convention that will be used by FUNCTION 454 to return a value of type VALTYPE. FUNCTION may be NULL in which 455 case the return convention is computed based only on VALTYPE. 456 457 If READBUF is not NULL, extract the return value and save it in this buffer. 458 459 If WRITEBUF is not NULL, it contains a return value which will be 460 stored into the appropriate register. This can be used when we want 461 to force the value returned by a function (see the "return" command 462 for instance). */ 463 464 extern int gdbarch_return_value_p (struct gdbarch *gdbarch); 465 466 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); 467 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf); 468 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value); 469 470 /* Return true if the return value of function is stored in the first hidden 471 parameter. In theory, this feature should be language-dependent, specified 472 by language and its ABI, such as C++. Unfortunately, compiler may 473 implement it to a target-dependent feature. So that we need such hook here 474 to be aware of this in GDB. */ 475 476 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type); 477 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type); 478 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); 479 480 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 481 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 482 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue); 483 484 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch); 485 486 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip); 487 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip); 488 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue); 489 490 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs); 491 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs); 492 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than); 493 494 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 495 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr); 496 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc); 497 498 /* Return the adjusted address and kind to use for Z0/Z1 packets. 499 KIND is usually the memory length of the breakpoint, but may have a 500 different target-specific meaning. */ 501 502 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr); 503 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr); 504 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc); 505 506 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch); 507 508 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 509 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr); 510 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address); 511 512 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 513 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 514 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint); 515 516 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 517 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt); 518 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint); 519 520 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch); 521 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break); 522 523 /* A function can be addressed by either it's "pointer" (possibly a 524 descriptor address) or "entry point" (first executable instruction). 525 The method "convert_from_func_ptr_addr" converting the former to the 526 latter. gdbarch_deprecated_function_start_offset is being used to implement 527 a simplified subset of that functionality - the function's address 528 corresponds to the "function pointer" and the function's start 529 corresponds to the "function entry point" - and hence is redundant. */ 530 531 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch); 532 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset); 533 534 /* Return the remote protocol register number associated with this 535 register. Normally the identity mapping. */ 536 537 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno); 538 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno); 539 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number); 540 541 /* Fetch the target specific address used to represent a load module. */ 542 543 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch); 544 545 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile); 546 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile); 547 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address); 548 549 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); 550 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); 551 552 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch); 553 554 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 555 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame); 556 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); 557 558 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch); 559 560 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); 561 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame); 562 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); 563 564 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 565 frame-base. Enable frame-base before frame-unwind. */ 566 567 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch); 568 569 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame); 570 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame); 571 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args); 572 573 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch); 574 575 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address); 576 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address); 577 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align); 578 579 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type); 580 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); 581 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr); 582 583 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch); 584 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size); 585 586 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 587 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ); 588 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr); 589 590 /* On some machines there are bits in addresses which are not really 591 part of the address, but are used by the kernel, the hardware, etc. 592 for special purposes. gdbarch_addr_bits_remove takes out any such bits so 593 we get a "real" address such as one would find in a symbol table. 594 This is used only for addresses of instructions, and even then I'm 595 not sure it's used in all contexts. It exists to deal with there 596 being a few stray bits in the PC which would mislead us, not as some 597 sort of generic thing to handle alignment or segmentation (it's 598 possible it should be in TARGET_READ_PC instead). */ 599 600 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 601 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); 602 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); 603 604 /* FIXME/cagney/2001-01-18: This should be split in two. A target method that 605 indicates if the target needs software single step. An ISA method to 606 implement it. 607 608 FIXME/cagney/2001-01-18: This should be replaced with something that inserts 609 breakpoints using the breakpoint system instead of blatting memory directly 610 (as with rs6000). 611 612 FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the 613 target can single step. If not, then implement single step using breakpoints. 614 615 A return value of 1 means that the software_single_step breakpoints 616 were inserted; 0 means they were not. */ 617 618 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch); 619 620 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame); 621 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame); 622 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step); 623 624 /* Return non-zero if the processor is executing a delay slot and a 625 further single-step is needed before the instruction finishes. */ 626 627 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch); 628 629 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame); 630 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame); 631 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay); 632 633 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the 634 disassembler. Perhaps objdump can handle it? */ 635 636 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info); 637 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info); 638 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn); 639 640 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc); 641 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc); 642 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code); 643 644 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER 645 evaluates non-zero, this is the address where the debugger will place 646 a step-resume breakpoint to get us past the dynamic linker. */ 647 648 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); 649 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); 650 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver); 651 652 /* Some systems also have trampoline code for returning from shared libs. */ 653 654 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name); 655 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name); 656 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline); 657 658 /* A target might have problems with watchpoints as soon as the stack 659 frame of the current function has been destroyed. This mostly happens 660 as the first action in a funtion's epilogue. in_function_epilogue_p() 661 is defined to return a non-zero value if either the given addr is one 662 instruction after the stack destroying instruction up to the trailing 663 return instruction or if we can figure out that the stack frame has 664 already been invalidated regardless of the value of addr. Targets 665 which don't suffer from that problem could just let this functionality 666 untouched. */ 667 668 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr); 669 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr); 670 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p); 671 672 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym); 673 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym); 674 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special); 675 676 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym); 677 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym); 678 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special); 679 680 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); 681 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); 682 683 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); 684 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); 685 686 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch); 687 688 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class); 689 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class); 690 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags); 691 692 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch); 693 694 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags); 695 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags); 696 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); 697 698 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch); 699 700 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 701 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr); 702 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); 703 704 /* Is a register in a group */ 705 706 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 707 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup); 708 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p); 709 710 /* Fetch the pointer to the ith function argument. */ 711 712 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch); 713 714 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type); 715 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type); 716 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument); 717 718 /* Return the appropriate register set for a core file section with 719 name SECT_NAME and size SECT_SIZE. */ 720 721 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch); 722 723 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 724 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size); 725 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section); 726 727 /* Supported register notes in a core file. */ 728 729 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch); 730 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections); 731 732 /* Create core file notes */ 733 734 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch); 735 736 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size); 737 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size); 738 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes); 739 740 /* The elfcore writer hook to use to write Linux prpsinfo notes to core 741 files. Most Linux architectures use the same prpsinfo32 or 742 prpsinfo64 layouts, and so won't need to provide this hook, as we 743 call the Linux generic routines in bfd to write prpsinfo notes by 744 default. */ 745 746 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch); 747 748 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info); 749 extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info); 750 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo); 751 752 /* Find core file memory regions */ 753 754 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch); 755 756 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data); 757 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data); 758 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions); 759 760 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from 761 core file into buffer READBUF with length LEN. */ 762 763 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch); 764 765 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 766 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len); 767 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries); 768 769 /* How the core target converts a PTID from a core file to a string. */ 770 771 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch); 772 773 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 774 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); 775 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str); 776 777 /* BFD target to use when generating a core file. */ 778 779 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch); 780 781 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch); 782 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target); 783 784 /* If the elements of C++ vtables are in-place function descriptors rather 785 than normal function pointers (which may point to code or a descriptor), 786 set this to one. */ 787 788 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch); 789 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors); 790 791 /* Set if the least significant bit of the delta is used instead of the least 792 significant bit of the pfn for pointers to virtual member functions. */ 793 794 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch); 795 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta); 796 797 /* Advance PC to next instruction in order to skip a permanent breakpoint. */ 798 799 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch); 800 801 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache); 802 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache); 803 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint); 804 805 /* The maximum length of an instruction on this architecture in bytes. */ 806 807 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch); 808 809 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch); 810 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length); 811 812 /* Copy the instruction at FROM to TO, and make any adjustments 813 necessary to single-step it at that address. 814 815 REGS holds the state the thread's registers will have before 816 executing the copied instruction; the PC in REGS will refer to FROM, 817 not the copy at TO. The caller should update it to point at TO later. 818 819 Return a pointer to data of the architecture's choice to be passed 820 to gdbarch_displaced_step_fixup. Or, return NULL to indicate that 821 the instruction's effects have been completely simulated, with the 822 resulting state written back to REGS. 823 824 For a general explanation of displaced stepping and how GDB uses it, 825 see the comments in infrun.c. 826 827 The TO area is only guaranteed to have space for 828 gdbarch_max_insn_length (arch) bytes, so this function must not 829 write more bytes than that to that area. 830 831 If you do not provide this function, GDB assumes that the 832 architecture does not support displaced stepping. 833 834 If your architecture doesn't need to adjust instructions before 835 single-stepping them, consider using simple_displaced_step_copy_insn 836 here. */ 837 838 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch); 839 840 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 841 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 842 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn); 843 844 /* Return true if GDB should use hardware single-stepping to execute 845 the displaced instruction identified by CLOSURE. If false, 846 GDB will simply restart execution at the displaced instruction 847 location, and it is up to the target to ensure GDB will receive 848 control again (e.g. by placing a software breakpoint instruction 849 into the displaced instruction buffer). 850 851 The default implementation returns false on all targets that 852 provide a gdbarch_software_single_step routine, and true otherwise. */ 853 854 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 855 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 856 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep); 857 858 /* Fix up the state resulting from successfully single-stepping a 859 displaced instruction, to give the result we would have gotten from 860 stepping the instruction in its original location. 861 862 REGS is the register state resulting from single-stepping the 863 displaced instruction. 864 865 CLOSURE is the result from the matching call to 866 gdbarch_displaced_step_copy_insn. 867 868 If you provide gdbarch_displaced_step_copy_insn.but not this 869 function, then GDB assumes that no fixup is needed after 870 single-stepping the instruction. 871 872 For a general explanation of displaced stepping and how GDB uses it, 873 see the comments in infrun.c. */ 874 875 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch); 876 877 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 878 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); 879 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup); 880 881 /* Free a closure returned by gdbarch_displaced_step_copy_insn. 882 883 If you provide gdbarch_displaced_step_copy_insn, you must provide 884 this function as well. 885 886 If your architecture uses closures that don't need to be freed, then 887 you can use simple_displaced_step_free_closure here. 888 889 For a general explanation of displaced stepping and how GDB uses it, 890 see the comments in infrun.c. */ 891 892 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 893 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure); 894 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure); 895 896 /* Return the address of an appropriate place to put displaced 897 instructions while we step over them. There need only be one such 898 place, since we're only stepping one thread over a breakpoint at a 899 time. 900 901 For a general explanation of displaced stepping and how GDB uses it, 902 see the comments in infrun.c. */ 903 904 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch); 905 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch); 906 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location); 907 908 /* Relocate an instruction to execute at a different address. OLDLOC 909 is the address in the inferior memory where the instruction to 910 relocate is currently at. On input, TO points to the destination 911 where we want the instruction to be copied (and possibly adjusted) 912 to. On output, it points to one past the end of the resulting 913 instruction(s). The effect of executing the instruction at TO shall 914 be the same as if executing it at FROM. For example, call 915 instructions that implicitly push the return address on the stack 916 should be adjusted to return to the instruction after OLDLOC; 917 relative branches, and other PC-relative instructions need the 918 offset adjusted; etc. */ 919 920 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch); 921 922 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 923 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from); 924 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction); 925 926 /* Refresh overlay mapped state for section OSECT. */ 927 928 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch); 929 930 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect); 931 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect); 932 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update); 933 934 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch); 935 936 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 937 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd); 938 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description); 939 940 /* Handle special encoding of static variables in stabs debug info. */ 941 942 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch); 943 944 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name); 945 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name); 946 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name); 947 948 /* Set if the address in N_SO or N_FUN stabs may be zero. */ 949 950 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch); 951 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing); 952 953 /* Parse the instruction at ADDR storing in the record execution log 954 the registers REGCACHE and memory ranges that will be affected when 955 the instruction executes, along with their current values. 956 Return -1 if something goes wrong, 0 otherwise. */ 957 958 extern int gdbarch_process_record_p (struct gdbarch *gdbarch); 959 960 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 961 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr); 962 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record); 963 964 /* Save process state after a signal. 965 Return -1 if something goes wrong, 0 otherwise. */ 966 967 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch); 968 969 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal); 970 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal); 971 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal); 972 973 /* Signal translation: translate inferior's signal (target's) number 974 into GDB's representation. The implementation of this method must 975 be host independent. IOW, don't rely on symbols of the NAT_FILE 976 header (the nm-*.h files), the host <signal.h> header, or similar 977 headers. This is mainly used when cross-debugging core files --- 978 "Live" targets hide the translation behind the target interface 979 (target_wait, target_resume, etc.). */ 980 981 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch); 982 983 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo); 984 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo); 985 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target); 986 987 /* Extra signal info inspection. 988 989 Return a type suitable to inspect extra signal information. */ 990 991 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch); 992 993 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch); 994 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch); 995 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type); 996 997 /* Record architecture-specific information from the symbol table. */ 998 999 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch); 1000 1001 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 1002 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym); 1003 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol); 1004 1005 /* Function for the 'catch syscall' feature. 1006 Get architecture-specific system calls information from registers. */ 1007 1008 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch); 1009 1010 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid); 1011 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid); 1012 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number); 1013 1014 /* SystemTap related fields and functions. 1015 Prefix used to mark an integer constant on the architecture's assembly 1016 For example, on x86 integer constants are written as: 1017 1018 $10 ;; integer constant 10 1019 1020 in this case, this prefix would be the character `$'. */ 1021 1022 extern const char * gdbarch_stap_integer_prefix (struct gdbarch *gdbarch); 1023 extern void set_gdbarch_stap_integer_prefix (struct gdbarch *gdbarch, const char * stap_integer_prefix); 1024 1025 /* Suffix used to mark an integer constant on the architecture's assembly. */ 1026 1027 extern const char * gdbarch_stap_integer_suffix (struct gdbarch *gdbarch); 1028 extern void set_gdbarch_stap_integer_suffix (struct gdbarch *gdbarch, const char * stap_integer_suffix); 1029 1030 /* Prefix used to mark a register name on the architecture's assembly. 1031 For example, on x86 the register name is written as: 1032 1033 %eax ;; register eax 1034 1035 in this case, this prefix would be the character `%'. */ 1036 1037 extern const char * gdbarch_stap_register_prefix (struct gdbarch *gdbarch); 1038 extern void set_gdbarch_stap_register_prefix (struct gdbarch *gdbarch, const char * stap_register_prefix); 1039 1040 /* Suffix used to mark a register name on the architecture's assembly */ 1041 1042 extern const char * gdbarch_stap_register_suffix (struct gdbarch *gdbarch); 1043 extern void set_gdbarch_stap_register_suffix (struct gdbarch *gdbarch, const char * stap_register_suffix); 1044 1045 /* Prefix used to mark a register indirection on the architecture's assembly. 1046 For example, on x86 the register indirection is written as: 1047 1048 (%eax) ;; indirecting eax 1049 1050 in this case, this prefix would be the charater `('. 1051 1052 Please note that we use the indirection prefix also for register 1053 displacement, e.g., `4(%eax)' on x86. */ 1054 1055 extern const char * gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch); 1056 extern void set_gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch, const char * stap_register_indirection_prefix); 1057 1058 /* Suffix used to mark a register indirection on the architecture's assembly. 1059 For example, on x86 the register indirection is written as: 1060 1061 (%eax) ;; indirecting eax 1062 1063 in this case, this prefix would be the charater `)'. 1064 1065 Please note that we use the indirection suffix also for register 1066 displacement, e.g., `4(%eax)' on x86. */ 1067 1068 extern const char * gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch); 1069 extern void set_gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch, const char * stap_register_indirection_suffix); 1070 1071 /* Prefix used to name a register using GDB's nomenclature. 1072 1073 For example, on PPC a register is represented by a number in the assembly 1074 language (e.g., `10' is the 10th general-purpose register). However, 1075 inside GDB this same register has an `r' appended to its name, so the 10th 1076 register would be represented as `r10' internally. */ 1077 1078 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch); 1079 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix); 1080 1081 /* Suffix used to name a register using GDB's nomenclature. */ 1082 1083 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch); 1084 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix); 1085 1086 /* Check if S is a single operand. 1087 1088 Single operands can be: 1089 - Literal integers, e.g. `$10' on x86 1090 - Register access, e.g. `%eax' on x86 1091 - Register indirection, e.g. `(%eax)' on x86 1092 - Register displacement, e.g. `4(%eax)' on x86 1093 1094 This function should check for these patterns on the string 1095 and return 1 if some were found, or zero otherwise. Please try to match 1096 as much info as you can from the string, i.e., if you have to match 1097 something like `(%', do not match just the `('. */ 1098 1099 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch); 1100 1101 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s); 1102 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s); 1103 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand); 1104 1105 /* Function used to handle a "special case" in the parser. 1106 1107 A "special case" is considered to be an unknown token, i.e., a token 1108 that the parser does not know how to parse. A good example of special 1109 case would be ARM's register displacement syntax: 1110 1111 [R0, #4] ;; displacing R0 by 4 1112 1113 Since the parser assumes that a register displacement is of the form: 1114 1115 <number> <indirection_prefix> <register_name> <indirection_suffix> 1116 1117 it means that it will not be able to recognize and parse this odd syntax. 1118 Therefore, we should add a special case function that will handle this token. 1119 1120 This function should generate the proper expression form of the expression 1121 using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode' 1122 and so on). It should also return 1 if the parsing was successful, or zero 1123 if the token was not recognized as a special token (in this case, returning 1124 zero means that the special parser is deferring the parsing to the generic 1125 parser), and should advance the buffer pointer (p->arg). */ 1126 1127 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch); 1128 1129 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p); 1130 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p); 1131 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token); 1132 1133 /* True if the list of shared libraries is one and only for all 1134 processes, as opposed to a list of shared libraries per inferior. 1135 This usually means that all processes, although may or may not share 1136 an address space, will see the same set of symbols at the same 1137 addresses. */ 1138 1139 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch); 1140 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist); 1141 1142 /* On some targets, even though each inferior has its own private 1143 address space, the debug interface takes care of making breakpoints 1144 visible to all address spaces automatically. For such cases, 1145 this property should be set to true. */ 1146 1147 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch); 1148 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints); 1149 1150 /* True if inferiors share an address space (e.g., uClinux). */ 1151 1152 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch); 1153 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch); 1154 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space); 1155 1156 /* True if a fast tracepoint can be set at an address. */ 1157 1158 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg); 1159 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg); 1160 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at); 1161 1162 /* Return the "auto" target charset. */ 1163 1164 typedef const char * (gdbarch_auto_charset_ftype) (void); 1165 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch); 1166 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset); 1167 1168 /* Return the "auto" target wide charset. */ 1169 1170 typedef const char * (gdbarch_auto_wide_charset_ftype) (void); 1171 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch); 1172 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset); 1173 1174 /* If non-empty, this is a file extension that will be opened in place 1175 of the file extension reported by the shared library list. 1176 1177 This is most useful for toolchains that use a post-linker tool, 1178 where the names of the files run on the target differ in extension 1179 compared to the names of the files GDB should load for debug info. */ 1180 1181 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch); 1182 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension); 1183 1184 /* If true, the target OS has DOS-based file system semantics. That 1185 is, absolute paths include a drive name, and the backslash is 1186 considered a directory separator. */ 1187 1188 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch); 1189 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system); 1190 1191 /* Generate bytecodes to collect the return address in a frame. 1192 Since the bytecodes run on the target, possibly with GDB not even 1193 connected, the full unwinding machinery is not available, and 1194 typically this function will issue bytecodes for one or more likely 1195 places that the return address may be found. */ 1196 1197 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1198 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope); 1199 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address); 1200 1201 /* Implement the "info proc" command. */ 1202 1203 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch); 1204 1205 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enum info_proc_what what); 1206 extern void gdbarch_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what); 1207 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc); 1208 1209 /* Implement the "info proc" command for core files. Noe that there 1210 are two "info_proc"-like methods on gdbarch -- one for core files, 1211 one for live targets. */ 1212 1213 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch); 1214 1215 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enum info_proc_what what); 1216 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what); 1217 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc); 1218 1219 /* Iterate over all objfiles in the order that makes the most sense 1220 for the architecture to make global symbol searches. 1221 1222 CB is a callback function where OBJFILE is the objfile to be searched, 1223 and CB_DATA a pointer to user-defined data (the same data that is passed 1224 when calling this gdbarch method). The iteration stops if this function 1225 returns nonzero. 1226 1227 CB_DATA is a pointer to some user-defined data to be passed to 1228 the callback. 1229 1230 If not NULL, CURRENT_OBJFILE corresponds to the objfile being 1231 inspected when the symbol search was requested. */ 1232 1233 typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile); 1234 extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile); 1235 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); 1236 1237 /* Ravenscar arch-dependent ops. */ 1238 1239 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch); 1240 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops); 1241 1242 /* Definition for an unknown syscall, used basically in error-cases. */ 1243 #define UNKNOWN_SYSCALL (-1) 1244 1245 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); 1246 1247 1248 /* Mechanism for co-ordinating the selection of a specific 1249 architecture. 1250 1251 GDB targets (*-tdep.c) can register an interest in a specific 1252 architecture. Other GDB components can register a need to maintain 1253 per-architecture data. 1254 1255 The mechanisms below ensures that there is only a loose connection 1256 between the set-architecture command and the various GDB 1257 components. Each component can independently register their need 1258 to maintain architecture specific data with gdbarch. 1259 1260 Pragmatics: 1261 1262 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It 1263 didn't scale. 1264 1265 The more traditional mega-struct containing architecture specific 1266 data for all the various GDB components was also considered. Since 1267 GDB is built from a variable number of (fairly independent) 1268 components it was determined that the global aproach was not 1269 applicable. */ 1270 1271 1272 /* Register a new architectural family with GDB. 1273 1274 Register support for the specified ARCHITECTURE with GDB. When 1275 gdbarch determines that the specified architecture has been 1276 selected, the corresponding INIT function is called. 1277 1278 -- 1279 1280 The INIT function takes two parameters: INFO which contains the 1281 information available to gdbarch about the (possibly new) 1282 architecture; ARCHES which is a list of the previously created 1283 ``struct gdbarch'' for this architecture. 1284 1285 The INFO parameter is, as far as possible, be pre-initialized with 1286 information obtained from INFO.ABFD or the global defaults. 1287 1288 The ARCHES parameter is a linked list (sorted most recently used) 1289 of all the previously created architures for this architecture 1290 family. The (possibly NULL) ARCHES->gdbarch can used to access 1291 values from the previously selected architecture for this 1292 architecture family. 1293 1294 The INIT function shall return any of: NULL - indicating that it 1295 doesn't recognize the selected architecture; an existing ``struct 1296 gdbarch'' from the ARCHES list - indicating that the new 1297 architecture is just a synonym for an earlier architecture (see 1298 gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch'' 1299 - that describes the selected architecture (see gdbarch_alloc()). 1300 1301 The DUMP_TDEP function shall print out all target specific values. 1302 Care should be taken to ensure that the function works in both the 1303 multi-arch and non- multi-arch cases. */ 1304 1305 struct gdbarch_list 1306 { 1307 struct gdbarch *gdbarch; 1308 struct gdbarch_list *next; 1309 }; 1310 1311 struct gdbarch_info 1312 { 1313 /* Use default: NULL (ZERO). */ 1314 const struct bfd_arch_info *bfd_arch_info; 1315 1316 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ 1317 int byte_order; 1318 1319 int byte_order_for_code; 1320 1321 /* Use default: NULL (ZERO). */ 1322 bfd *abfd; 1323 1324 /* Use default: NULL (ZERO). */ 1325 struct gdbarch_tdep_info *tdep_info; 1326 1327 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ 1328 enum gdb_osabi osabi; 1329 1330 /* Use default: NULL (ZERO). */ 1331 const struct target_desc *target_desc; 1332 }; 1333 1334 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); 1335 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); 1336 1337 /* DEPRECATED - use gdbarch_register() */ 1338 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); 1339 1340 extern void gdbarch_register (enum bfd_architecture architecture, 1341 gdbarch_init_ftype *, 1342 gdbarch_dump_tdep_ftype *); 1343 1344 1345 /* Return a freshly allocated, NULL terminated, array of the valid 1346 architecture names. Since architectures are registered during the 1347 _initialize phase this function only returns useful information 1348 once initialization has been completed. */ 1349 1350 extern const char **gdbarch_printable_names (void); 1351 1352 1353 /* Helper function. Search the list of ARCHES for a GDBARCH that 1354 matches the information provided by INFO. */ 1355 1356 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); 1357 1358 1359 /* Helper function. Create a preliminary ``struct gdbarch''. Perform 1360 basic initialization using values obtained from the INFO and TDEP 1361 parameters. set_gdbarch_*() functions are called to complete the 1362 initialization of the object. */ 1363 1364 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); 1365 1366 1367 /* Helper function. Free a partially-constructed ``struct gdbarch''. 1368 It is assumed that the caller freeds the ``struct 1369 gdbarch_tdep''. */ 1370 1371 extern void gdbarch_free (struct gdbarch *); 1372 1373 1374 /* Helper function. Allocate memory from the ``struct gdbarch'' 1375 obstack. The memory is freed when the corresponding architecture 1376 is also freed. */ 1377 1378 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); 1379 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) 1380 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) 1381 1382 1383 /* Helper function. Force an update of the current architecture. 1384 1385 The actual architecture selected is determined by INFO, ``(gdb) set 1386 architecture'' et.al., the existing architecture and BFD's default 1387 architecture. INFO should be initialized to zero and then selected 1388 fields should be updated. 1389 1390 Returns non-zero if the update succeeds. */ 1391 1392 extern int gdbarch_update_p (struct gdbarch_info info); 1393 1394 1395 /* Helper function. Find an architecture matching info. 1396 1397 INFO should be initialized using gdbarch_info_init, relevant fields 1398 set, and then finished using gdbarch_info_fill. 1399 1400 Returns the corresponding architecture, or NULL if no matching 1401 architecture was found. */ 1402 1403 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); 1404 1405 1406 /* Helper function. Set the target gdbarch to "gdbarch". */ 1407 1408 extern void set_target_gdbarch (struct gdbarch *gdbarch); 1409 1410 1411 /* Register per-architecture data-pointer. 1412 1413 Reserve space for a per-architecture data-pointer. An identifier 1414 for the reserved data-pointer is returned. That identifer should 1415 be saved in a local static variable. 1416 1417 Memory for the per-architecture data shall be allocated using 1418 gdbarch_obstack_zalloc. That memory will be deleted when the 1419 corresponding architecture object is deleted. 1420 1421 When a previously created architecture is re-selected, the 1422 per-architecture data-pointer for that previous architecture is 1423 restored. INIT() is not re-called. 1424 1425 Multiple registrarants for any architecture are allowed (and 1426 strongly encouraged). */ 1427 1428 struct gdbarch_data; 1429 1430 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); 1431 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); 1432 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); 1433 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); 1434 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, 1435 struct gdbarch_data *data, 1436 void *pointer); 1437 1438 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); 1439 1440 1441 /* Set the dynamic target-system-dependent parameters (architecture, 1442 byte-order, ...) using information found in the BFD. */ 1443 1444 extern void set_gdbarch_from_file (bfd *); 1445 1446 1447 /* Initialize the current architecture to the "first" one we find on 1448 our list. */ 1449 1450 extern void initialize_current_architecture (void); 1451 1452 /* gdbarch trace variable */ 1453 extern unsigned int gdbarch_debug; 1454 1455 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); 1456 1457 #endif 1458