gdb/gdbarch.h

   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) 1998-2016 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 #include "frame.h"
  39
  40 struct floatformat;
  41 struct ui_file;
  42 struct value;
  43 struct objfile;
  44 struct obj_section;
  45 struct minimal_symbol;
  46 struct regcache;
  47 struct reggroup;
  48 struct regset;
  49 struct disassemble_info;
  50 struct target_ops;
  51 struct obstack;
  52 struct bp_target_info;
  53 struct target_desc;
  54 struct objfile;
  55 struct symbol;
  56 struct displaced_step_closure;
  57 struct syscall;
  58 struct agent_expr;
  59 struct axs_value;
  60 struct stap_parse_info;
  61 struct parser_state;
  62 struct ravenscar_arch_ops;
  63 struct elf_internal_linux_prpsinfo;
  64 struct mem_range;
  65 struct syscalls_info;
  66 struct thread_info;
  67 struct ui_out;
  68
  69 #include "regcache.h"
  70
  71 /* The architecture associated with the inferior through the
  72    connection to the target.
  73
  74    The architecture vector provides some information that is really a
  75    property of the inferior, accessed through a particular target:
  76    ptrace operations; the layout of certain RSP packets; the solib_ops
  77    vector; etc.  To differentiate architecture accesses to
  78    per-inferior/target properties from
  79    per-thread/per-frame/per-objfile properties, accesses to
  80    per-inferior/target properties should be made through this
  81    gdbarch.  */
  82
  83 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'.  */
  84 extern struct gdbarch *target_gdbarch (void);
  85
  86 /* Callback type for the 'iterate_over_objfiles_in_search_order'
  87    gdbarch  method.  */
  88
  89 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
  90   (struct objfile *objfile, void *cb_data);
  91
  92 /* Callback type for regset section iterators.  The callback usually
  93    invokes the REGSET's supply or collect method, to which it must
  94    pass a buffer with at least the given SIZE.  SECT_NAME is a BFD
  95    section name, and HUMAN_NAME is used for diagnostic messages.
  96    CB_DATA should have been passed unchanged through the iterator.  */
  97
  98 typedef void (iterate_over_regset_sections_cb)
  99   (const char *sect_name, int size, const struct regset *regset,
 100    const char *human_name, void *cb_data);
 101
 102
 103 /* The following are pre-initialized by GDBARCH.  */
 104
 105 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
 106 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized.  */
 107
 108 extern enum bfd_endian gdbarch_byte_order (struct gdbarch *gdbarch);
 109 /* set_gdbarch_byte_order() - not applicable - pre-initialized.  */
 110
 111 extern enum bfd_endian gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
 112 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized.  */
 113
 114 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
 115 /* set_gdbarch_osabi() - not applicable - pre-initialized.  */
 116
 117 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
 118 /* set_gdbarch_target_desc() - not applicable - pre-initialized.  */
 119
 120
 121 /* The following are initialized by the target dependent code.  */
 122
 123 /* The bit byte-order has to do just with numbering of bits in debugging symbols
 124    and such.  Conceptually, it's quite separate from byte/word byte order. */
 125
 126 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
 127 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
 128
 129 /* Number of bits in a char or unsigned char for the target machine.
 130    Just like CHAR_BIT in <limits.h> but describes the target machine.
 131    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 132
 133    Number of bits in a short or unsigned short for the target machine. */
 134
 135 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
 136 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
 137
 138 /* Number of bits in an int or unsigned int for the target machine. */
 139
 140 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 141 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 142
 143 /* Number of bits in a long or unsigned long for the target machine. */
 144
 145 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 146 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 147
 148 /* Number of bits in a long long or unsigned long long for the target
 149    machine. */
 150
 151 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 152 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 153
 154 /* Alignment of a long long or unsigned long long for the target
 155    machine. */
 156
 157 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
 158 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
 159
 160 /* The ABI default bit-size and format for "half", "float", "double", and
 161    "long double".  These bit/format pairs should eventually be combined
 162    into a single object.  For the moment, just initialize them as a pair.
 163    Each format describes both the big and little endian layouts (if
 164    useful). */
 165
 166 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
 167 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
 168
 169 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
 170 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
 171
 172 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 173 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 174
 175 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 176 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 177
 178 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 179 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 180
 181 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 182 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 183
 184 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 185 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 186
 187 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 188 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 189
 190 /* For most targets, a pointer on the target and its representation as an
 191    address in GDB have the same size and "look the same".  For such a
 192    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 193    / addr_bit will be set from it.
 194
 195    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 196    also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
 197    gdbarch_address_to_pointer as well.
 198
 199    ptr_bit is the size of a pointer on the target */
 200
 201 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 202 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 203
 204 /* addr_bit is the size of a target address as represented in gdb */
 205
 206 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 207 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 208
 209 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
 210    info.  For .debug_frame FDEs, this is supposed to be the target address
 211    size from the associated CU header, and which is equivalent to the
 212    DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
 213    Unfortunately there is no good way to determine this value.  Therefore
 214    dwarf2_addr_size simply defaults to the target pointer size.
 215
 216    dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
 217    defined using the target's pointer size so far.
 218
 219    Note that dwarf2_addr_size only needs to be redefined by a target if the
 220    GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
 221    and if Dwarf versions < 4 need to be supported. */
 222
 223 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
 224 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
 225
 226 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 227
 228 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 229 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 230
 231 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 232
 233 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 234 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 235 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 236
 237 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 238
 239 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 240 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 241 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 242
 243 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 244    whole scheme for dealing with "frames" and "frame pointers" needs a
 245    serious shakedown. */
 246
 247 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 248 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 249 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 250
 251 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 252
 253 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 254 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 255 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 256
 257 /* Read a register into a new struct value.  If the register is wholly
 258    or partly unavailable, this should call mark_value_bytes_unavailable
 259    as appropriate.  If this is defined, then pseudo_register_read will
 260    never be called. */
 261
 262 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
 263
 264 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 265 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 266 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
 267
 268 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 269
 270 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 271 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 272 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 273
 274 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 275 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 276
 277 /* This macro gives the number of pseudo-registers that live in the
 278    register namespace but do not get fetched or stored on the target.
 279    These pseudo-registers may be aliases for other registers,
 280    combinations of other registers, or they may be computed by GDB. */
 281
 282 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 283 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 284
 285 /* Assemble agent expression bytecode to collect pseudo-register REG.
 286    Return -1 if something goes wrong, 0 otherwise. */
 287
 288 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
 289
 290 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 291 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 292 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
 293
 294 /* Assemble agent expression bytecode to push the value of pseudo-register
 295    REG on the interpreter stack.
 296    Return -1 if something goes wrong, 0 otherwise. */
 297
 298 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
 299
 300 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 301 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 302 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
 303
 304 /* Some targets/architectures can do extra processing/display of
 305    segmentation faults.  E.g., Intel MPX boundary faults.
 306    Call the architecture dependent function to handle the fault.
 307    UIOUT is the output stream where the handler will place information. */
 308
 309 extern int gdbarch_handle_segmentation_fault_p (struct gdbarch *gdbarch);
 310
 311 typedef void (gdbarch_handle_segmentation_fault_ftype) (struct gdbarch *gdbarch, struct ui_out *uiout);
 312 extern void gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, struct ui_out *uiout);
 313 extern void set_gdbarch_handle_segmentation_fault (struct gdbarch *gdbarch, gdbarch_handle_segmentation_fault_ftype *handle_segmentation_fault);
 314
 315 /* GDB's standard (or well known) register numbers.  These can map onto
 316    a real register or a pseudo (computed) register or not be defined at
 317    all (-1).
 318    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 319
 320 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 321 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 322
 323 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 324 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 325
 326 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 327 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 328
 329 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 330 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 331
 332 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 333
 334 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 335 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 336 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 337
 338 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 339
 340 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 341 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 342 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 343
 344 /* Convert from an sdb register number to an internal gdb register number. */
 345
 346 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 347 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 348 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 349
 350 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
 351    Return -1 for bad REGNUM.  Note: Several targets get this wrong. */
 352
 353 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 354 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 355 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 356
 357 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 358 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 359 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 360
 361 /* Return the type of a register specified by the architecture.  Only
 362    the register cache should call this function directly; others should
 363    use "register_type". */
 364
 365 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 366
 367 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 368 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 369 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 370
 371 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 372
 373 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 374 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 375 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 376
 377 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 378    deprecated_fp_regnum. */
 379
 380 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 381 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 382
 383 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 384
 385 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);
 386 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);
 387 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 388
 389 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 390 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 391
 392 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 393
 394 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);
 395 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);
 396 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 397
 398 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 399 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 400 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 401
 402 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 403 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 404 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 405
 406 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 407
 408 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 409 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 410 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 411
 412 /* MAP a GDB RAW register number onto a simulator register number.  See
 413    also include/...-sim.h. */
 414
 415 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 416 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 417 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 418
 419 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 420 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 421 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 422
 423 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 424 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 425 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 426
 427 /* Determine the address where a longjmp will land and save this address
 428    in PC.  Return nonzero on success.
 429
 430    FRAME corresponds to the longjmp frame. */
 431
 432 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 433
 434 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 435 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 436 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 437
 438 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 439 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 440
 441 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 442 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 443 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 444
 445 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
 446 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);
 447 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 448
 449 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 450 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 451 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 452
 453 /* Construct a value representing the contents of register REGNUM in
 454    frame FRAME_ID, interpreted as type TYPE.  The routine needs to
 455    allocate and return a struct value with all value attributes
 456    (but not the value contents) filled in. */
 457
 458 typedef struct value * (gdbarch_value_from_register_ftype) (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
 459 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_id frame_id);
 460 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 461
 462 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 463 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 464 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 465
 466 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 467 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 468 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 469
 470 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 471
 472 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 473 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 474 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 475
 476 /* Return the return-value convention that will be used by FUNCTION
 477    to return a value of type VALTYPE.  FUNCTION may be NULL in which
 478    case the return convention is computed based only on VALTYPE.
 479
 480    If READBUF is not NULL, extract the return value and save it in this buffer.
 481
 482    If WRITEBUF is not NULL, it contains a return value which will be
 483    stored into the appropriate register.  This can be used when we want
 484    to force the value returned by a function (see the "return" command
 485    for instance). */
 486
 487 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 488
 489 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);
 490 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);
 491 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 492
 493 /* Return true if the return value of function is stored in the first hidden
 494    parameter.  In theory, this feature should be language-dependent, specified
 495    by language and its ABI, such as C++.  Unfortunately, compiler may
 496    implement it to a target-dependent feature.  So that we need such hook here
 497    to be aware of this in GDB. */
 498
 499 typedef int (gdbarch_return_in_first_hidden_param_p_ftype) (struct gdbarch *gdbarch, struct type *type);
 500 extern int gdbarch_return_in_first_hidden_param_p (struct gdbarch *gdbarch, struct type *type);
 501 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);
 502
 503 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 504 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 505 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 506
 507 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 508
 509 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 510 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 511 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 512
 513 /* On some platforms, a single function may provide multiple entry points,
 514    e.g. one that is used for function-pointer calls and a different one
 515    that is used for direct function calls.
 516    In order to ensure that breakpoints set on the function will trigger
 517    no matter via which entry point the function is entered, a platform
 518    may provide the skip_entrypoint callback.  It is called with IP set
 519    to the main entry point of a function (as determined by the symbol table),
 520    and should return the address of the innermost entry point, where the
 521    actual breakpoint needs to be set.  Note that skip_entrypoint is used
 522    by GDB common code even when debugging optimized code, where skip_prologue
 523    is not used. */
 524
 525 extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
 526
 527 typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 528 extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
 529 extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
 530
 531 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 532 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 533 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 534
 535 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 536 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 537 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 538
 539 /* Return the adjusted address and kind to use for Z0/Z1 packets.
 540    KIND is usually the memory length of the breakpoint, but may have a
 541    different target-specific meaning. */
 542
 543 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 544 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 545 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
 546
 547 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 548
 549 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 550 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 551 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 552
 553 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 554 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 555 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 556
 557 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 558 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 559 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 560
 561 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 562 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 563
 564 /* A function can be addressed by either it's "pointer" (possibly a
 565    descriptor address) or "entry point" (first executable instruction).
 566    The method "convert_from_func_ptr_addr" converting the former to the
 567    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 568    a simplified subset of that functionality - the function's address
 569    corresponds to the "function pointer" and the function's start
 570    corresponds to the "function entry point" - and hence is redundant. */
 571
 572 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 573 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 574
 575 /* Return the remote protocol register number associated with this
 576    register.  Normally the identity mapping. */
 577
 578 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 579 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 580 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 581
 582 /* Fetch the target specific address used to represent a load module. */
 583
 584 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 585
 586 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 587 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 588 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 589
 590 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 591 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 592
 593 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 594
 595 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 596 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 597 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 598
 599 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 600
 601 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 602 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 603 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 604
 605 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 606    frame-base.  Enable frame-base before frame-unwind. */
 607
 608 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 609
 610 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 611 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 612 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 613
 614 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 615
 616 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 617 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 618 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 619
 620 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 621 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 622 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 623
 624 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 625 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 626
 627 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 628 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 629 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 630
 631 /* On some machines there are bits in addresses which are not really
 632    part of the address, but are used by the kernel, the hardware, etc.
 633    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 634    we get a "real" address such as one would find in a symbol table.
 635    This is used only for addresses of instructions, and even then I'm
 636    not sure it's used in all contexts.  It exists to deal with there
 637    being a few stray bits in the PC which would mislead us, not as some
 638    sort of generic thing to handle alignment or segmentation (it's
 639    possible it should be in TARGET_READ_PC instead). */
 640
 641 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 642 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 643 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 644
 645 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 646    indicates if the target needs software single step.  An ISA method to
 647    implement it.
 648
 649    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 650    breakpoints using the breakpoint system instead of blatting memory directly
 651    (as with rs6000).
 652
 653    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 654    target can single step.  If not, then implement single step using breakpoints.
 655
 656    A return value of 1 means that the software_single_step breakpoints
 657    were inserted; 0 means they were not. */
 658
 659 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 660
 661 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 662 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 663 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 664
 665 /* Return non-zero if the processor is executing a delay slot and a
 666    further single-step is needed before the instruction finishes. */
 667
 668 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 669
 670 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 671 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 672 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 673
 674 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 675    disassembler.  Perhaps objdump can handle it? */
 676
 677 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 678 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 679 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 680
 681 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 682 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 683 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 684
 685 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 686    evaluates non-zero, this is the address where the debugger will place
 687    a step-resume breakpoint to get us past the dynamic linker. */
 688
 689 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 690 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 691 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 692
 693 /* Some systems also have trampoline code for returning from shared libs. */
 694
 695 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 696 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 697 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 698
 699 /* A target might have problems with watchpoints as soon as the stack
 700    frame of the current function has been destroyed.  This mostly happens
 701    as the first action in a function's epilogue.  stack_frame_destroyed_p()
 702    is defined to return a non-zero value if either the given addr is one
 703    instruction after the stack destroying instruction up to the trailing
 704    return instruction or if we can figure out that the stack frame has
 705    already been invalidated regardless of the value of addr.  Targets
 706    which don't suffer from that problem could just let this functionality
 707    untouched. */
 708
 709 typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 710 extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 711 extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
 712
 713 /* Process an ELF symbol in the minimal symbol table in a backend-specific
 714    way.  Normally this hook is supposed to do nothing, however if required,
 715    then this hook can be used to apply tranformations to symbols that are
 716    considered special in some way.  For example the MIPS backend uses it
 717    to interpret `st_other' information to mark compressed code symbols so
 718    that they can be treated in the appropriate manner in the processing of
 719    the main symbol table and DWARF-2 records. */
 720
 721 extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
 722
 723 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 724 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 725 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 726
 727 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 728 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 729 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 730
 731 /* Process a symbol in the main symbol table in a backend-specific way.
 732    Normally this hook is supposed to do nothing, however if required,
 733    then this hook can be used to apply tranformations to symbols that
 734    are considered special in some way.  This is currently used by the
 735    MIPS backend to make sure compressed code symbols have the ISA bit
 736    set.  This in turn is needed for symbol values seen in GDB to match
 737    the values used at the runtime by the program itself, for function
 738    and label references. */
 739
 740 typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
 741 extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
 742 extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
 743
 744 /* Adjust the address retrieved from a DWARF-2 record other than a line
 745    entry in a backend-specific way.  Normally this hook is supposed to
 746    return the address passed unchanged, however if that is incorrect for
 747    any reason, then this hook can be used to fix the address up in the
 748    required manner.  This is currently used by the MIPS backend to make
 749    sure addresses in FDE, range records, etc. referring to compressed
 750    code have the ISA bit set, matching line information and the symbol
 751    table. */
 752
 753 typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
 754 extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
 755 extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
 756
 757 /* Adjust the address updated by a line entry in a backend-specific way.
 758    Normally this hook is supposed to return the address passed unchanged,
 759    however in the case of inconsistencies in these records, this hook can
 760    be used to fix them up in the required manner.  This is currently used
 761    by the MIPS backend to make sure all line addresses in compressed code
 762    are presented with the ISA bit set, which is not always the case.  This
 763    in turn ensures breakpoint addresses are correctly matched against the
 764    stop PC. */
 765
 766 typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
 767 extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
 768 extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
 769
 770 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 771 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 772
 773 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 774 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 775
 776 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 777
 778 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 779 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 780 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 781
 782 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 783
 784 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 785 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 786 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);
 787
 788 /* Return the appropriate type_flags for the supplied address class.
 789    This function should return 1 if the address class was recognized and
 790    type_flags was set, zero otherwise. */
 791
 792 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 793
 794 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 795 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 796 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);
 797
 798 /* Is a register in a group */
 799
 800 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 801 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 802 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 803
 804 /* Fetch the pointer to the ith function argument. */
 805
 806 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 807
 808 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 809 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 810 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 811
 812 /* Iterate over all supported register notes in a core file.  For each
 813    supported register note section, the iterator must call CB and pass
 814    CB_DATA unchanged.  If REGCACHE is not NULL, the iterator can limit
 815    the supported register note sections based on the current register
 816    values.  Otherwise it should enumerate all supported register note
 817    sections. */
 818
 819 extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
 820
 821 typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
 822 extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
 823 extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
 824
 825 /* Create core file notes */
 826
 827 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
 828
 829 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 830 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 831 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
 832
 833 /* The elfcore writer hook to use to write Linux prpsinfo notes to core
 834    files.  Most Linux architectures use the same prpsinfo32 or
 835    prpsinfo64 layouts, and so won't need to provide this hook, as we
 836    call the Linux generic routines in bfd to write prpsinfo notes by
 837    default. */
 838
 839 extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch);
 840
 841 typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
 842 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);
 843 extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo);
 844
 845 /* Find core file memory regions */
 846
 847 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
 848
 849 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 850 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 851 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
 852
 853 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 854    core file into buffer READBUF with length LEN.  Return the number of bytes read
 855    (zero indicates failure).
 856    failed, otherwise, return the red length of READBUF. */
 857
 858 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 859
 860 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
 861 extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
 862 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 863
 864 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
 865    libraries list from core file into buffer READBUF with length LEN.
 866    Return the number of bytes read (zero indicates failure). */
 867
 868 extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
 869
 870 typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
 871 extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
 872 extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
 873
 874 /* How the core target converts a PTID from a core file to a string. */
 875
 876 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 877
 878 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 879 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 880 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 881
 882 /* How the core target extracts the name of a thread from a core file. */
 883
 884 extern int gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
 885
 886 typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
 887 extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
 888 extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
 889
 890 /* BFD target to use when generating a core file. */
 891
 892 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 893
 894 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 895 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 896
 897 /* If the elements of C++ vtables are in-place function descriptors rather
 898    than normal function pointers (which may point to code or a descriptor),
 899    set this to one. */
 900
 901 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 902 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 903
 904 /* Set if the least significant bit of the delta is used instead of the least
 905    significant bit of the pfn for pointers to virtual member functions. */
 906
 907 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 908 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 909
 910 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 911
 912 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 913 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 914 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 915
 916 /* The maximum length of an instruction on this architecture in bytes. */
 917
 918 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 919
 920 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 921 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 922
 923 /* Copy the instruction at FROM to TO, and make any adjustments
 924    necessary to single-step it at that address.
 925
 926    REGS holds the state the thread's registers will have before
 927    executing the copied instruction; the PC in REGS will refer to FROM,
 928    not the copy at TO.  The caller should update it to point at TO later.
 929
 930    Return a pointer to data of the architecture's choice to be passed
 931    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 932    the instruction's effects have been completely simulated, with the
 933    resulting state written back to REGS.
 934
 935    For a general explanation of displaced stepping and how GDB uses it,
 936    see the comments in infrun.c.
 937
 938    The TO area is only guaranteed to have space for
 939    gdbarch_max_insn_length (arch) bytes, so this function must not
 940    write more bytes than that to that area.
 941
 942    If you do not provide this function, GDB assumes that the
 943    architecture does not support displaced stepping.
 944
 945    If your architecture doesn't need to adjust instructions before
 946    single-stepping them, consider using simple_displaced_step_copy_insn
 947    here.
 948
 949    If the instruction cannot execute out of line, return NULL.  The
 950    core falls back to stepping past the instruction in-line instead in
 951    that case. */
 952
 953 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 954
 955 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 956 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 957 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 958
 959 /* Return true if GDB should use hardware single-stepping to execute
 960    the displaced instruction identified by CLOSURE.  If false,
 961    GDB will simply restart execution at the displaced instruction
 962    location, and it is up to the target to ensure GDB will receive
 963    control again (e.g. by placing a software breakpoint instruction
 964    into the displaced instruction buffer).
 965
 966    The default implementation returns false on all targets that
 967    provide a gdbarch_software_single_step routine, and true otherwise. */
 968
 969 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 970 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 971 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
 972
 973 /* Fix up the state resulting from successfully single-stepping a
 974    displaced instruction, to give the result we would have gotten from
 975    stepping the instruction in its original location.
 976
 977    REGS is the register state resulting from single-stepping the
 978    displaced instruction.
 979
 980    CLOSURE is the result from the matching call to
 981    gdbarch_displaced_step_copy_insn.
 982
 983    If you provide gdbarch_displaced_step_copy_insn.but not this
 984    function, then GDB assumes that no fixup is needed after
 985    single-stepping the instruction.
 986
 987    For a general explanation of displaced stepping and how GDB uses it,
 988    see the comments in infrun.c. */
 989
 990 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 991
 992 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 993 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 994 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 995
 996 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 997
 998    If you provide gdbarch_displaced_step_copy_insn, you must provide
 999    this function as well.
1000
1001    If your architecture uses closures that don't need to be freed, then
1002    you can use simple_displaced_step_free_closure here.
1003
1004    For a general explanation of displaced stepping and how GDB uses it,
1005    see the comments in infrun.c. */
1006
1007 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1008 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
1009 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
1010
1011 /* Return the address of an appropriate place to put displaced
1012    instructions while we step over them.  There need only be one such
1013    place, since we're only stepping one thread over a breakpoint at a
1014    time.
1015
1016    For a general explanation of displaced stepping and how GDB uses it,
1017    see the comments in infrun.c. */
1018
1019 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
1020 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
1021 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
1022
1023 /* Relocate an instruction to execute at a different address.  OLDLOC
1024    is the address in the inferior memory where the instruction to
1025    relocate is currently at.  On input, TO points to the destination
1026    where we want the instruction to be copied (and possibly adjusted)
1027    to.  On output, it points to one past the end of the resulting
1028    instruction(s).  The effect of executing the instruction at TO shall
1029    be the same as if executing it at FROM.  For example, call
1030    instructions that implicitly push the return address on the stack
1031    should be adjusted to return to the instruction after OLDLOC;
1032    relative branches, and other PC-relative instructions need the
1033    offset adjusted; etc. */
1034
1035 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
1036
1037 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1038 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
1039 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
1040
1041 /* Refresh overlay mapped state for section OSECT. */
1042
1043 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1044
1045 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1046 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1047 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1048
1049 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
1050
1051 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1052 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
1053 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
1054
1055 /* Handle special encoding of static variables in stabs debug info. */
1056
1057 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
1058
1059 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
1060 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
1061 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
1062
1063 /* Set if the address in N_SO or N_FUN stabs may be zero. */
1064
1065 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
1066 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
1067
1068 /* Parse the instruction at ADDR storing in the record execution log
1069    the registers REGCACHE and memory ranges that will be affected when
1070    the instruction executes, along with their current values.
1071    Return -1 if something goes wrong, 0 otherwise. */
1072
1073 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
1074
1075 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1076 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1077 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
1078
1079 /* Save process state after a signal.
1080    Return -1 if something goes wrong, 0 otherwise. */
1081
1082 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
1083
1084 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1085 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
1086 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
1087
1088 /* Signal translation: translate inferior's signal (target's) number
1089    into GDB's representation.  The implementation of this method must
1090    be host independent.  IOW, don't rely on symbols of the NAT_FILE
1091    header (the nm-*.h files), the host <signal.h> header, or similar
1092    headers.  This is mainly used when cross-debugging core files ---
1093    "Live" targets hide the translation behind the target interface
1094    (target_wait, target_resume, etc.). */
1095
1096 extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
1097
1098 typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
1099 extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
1100 extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
1101
1102 /* Signal translation: translate the GDB's internal signal number into
1103    the inferior's signal (target's) representation.  The implementation
1104    of this method must be host independent.  IOW, don't rely on symbols
1105    of the NAT_FILE header (the nm-*.h files), the host <signal.h>
1106    header, or similar headers.
1107    Return the target signal number if found, or -1 if the GDB internal
1108    signal number is invalid. */
1109
1110 extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
1111
1112 typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
1113 extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
1114 extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
1115
1116 /* Extra signal info inspection.
1117
1118    Return a type suitable to inspect extra signal information. */
1119
1120 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
1121
1122 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
1123 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
1124 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
1125
1126 /* Record architecture-specific information from the symbol table. */
1127
1128 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
1129
1130 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1131 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
1132 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
1133
1134 /* Function for the 'catch syscall' feature.
1135    Get architecture-specific system calls information from registers. */
1136
1137 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
1138
1139 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
1140 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
1141 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
1142
1143 /* The filename of the XML syscall for this architecture. */
1144
1145 extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
1146 extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
1147
1148 /* Information about system calls from this architecture */
1149
1150 extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
1151 extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
1152
1153 /* SystemTap related fields and functions.
1154    A NULL-terminated array of prefixes used to mark an integer constant
1155    on the architecture's assembly.
1156    For example, on x86 integer constants are written as:
1157
1158     $10 ;; integer constant 10
1159
1160    in this case, this prefix would be the character `$'. */
1161
1162 extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
1163 extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
1164
1165 /* A NULL-terminated array of suffixes used to mark an integer constant
1166    on the architecture's assembly. */
1167
1168 extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
1169 extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
1170
1171 /* A NULL-terminated array of prefixes used to mark a register name on
1172    the architecture's assembly.
1173    For example, on x86 the register name is written as:
1174
1175     %eax ;; register eax
1176
1177    in this case, this prefix would be the character `%'. */
1178
1179 extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
1180 extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
1181
1182 /* A NULL-terminated array of suffixes used to mark a register name on
1183    the architecture's assembly. */
1184
1185 extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
1186 extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
1187
1188 /* A NULL-terminated array of prefixes used to mark a register
1189    indirection on the architecture's assembly.
1190    For example, on x86 the register indirection is written as:
1191
1192     (%eax) ;; indirecting eax
1193
1194    in this case, this prefix would be the charater `('.
1195
1196    Please note that we use the indirection prefix also for register
1197    displacement, e.g., `4(%eax)' on x86. */
1198
1199 extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
1200 extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
1201
1202 /* A NULL-terminated array of suffixes used to mark a register
1203    indirection on the architecture's assembly.
1204    For example, on x86 the register indirection is written as:
1205
1206     (%eax) ;; indirecting eax
1207
1208    in this case, this prefix would be the charater `)'.
1209
1210    Please note that we use the indirection suffix also for register
1211    displacement, e.g., `4(%eax)' on x86. */
1212
1213 extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
1214 extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
1215
1216 /* Prefix(es) used to name a register using GDB's nomenclature.
1217
1218    For example, on PPC a register is represented by a number in the assembly
1219    language (e.g., `10' is the 10th general-purpose register).  However,
1220    inside GDB this same register has an `r' appended to its name, so the 10th
1221    register would be represented as `r10' internally. */
1222
1223 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1224 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1225
1226 /* Suffix used to name a register using GDB's nomenclature. */
1227
1228 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1229 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1230
1231 /* Check if S is a single operand.
1232
1233    Single operands can be:
1234     - Literal integers, e.g. `$10' on x86
1235     - Register access, e.g. `%eax' on x86
1236     - Register indirection, e.g. `(%eax)' on x86
1237     - Register displacement, e.g. `4(%eax)' on x86
1238
1239    This function should check for these patterns on the string
1240    and return 1 if some were found, or zero otherwise.  Please try to match
1241    as much info as you can from the string, i.e., if you have to match
1242    something like `(%', do not match just the `('. */
1243
1244 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1245
1246 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1247 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1248 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1249
1250 /* Function used to handle a "special case" in the parser.
1251
1252    A "special case" is considered to be an unknown token, i.e., a token
1253    that the parser does not know how to parse.  A good example of special
1254    case would be ARM's register displacement syntax:
1255
1256     [R0, #4]  ;; displacing R0 by 4
1257
1258    Since the parser assumes that a register displacement is of the form:
1259
1260     <number> <indirection_prefix> <register_name> <indirection_suffix>
1261
1262    it means that it will not be able to recognize and parse this odd syntax.
1263    Therefore, we should add a special case function that will handle this token.
1264
1265    This function should generate the proper expression form of the expression
1266    using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1267    and so on).  It should also return 1 if the parsing was successful, or zero
1268    if the token was not recognized as a special token (in this case, returning
1269    zero means that the special parser is deferring the parsing to the generic
1270    parser), and should advance the buffer pointer (p->arg). */
1271
1272 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1273
1274 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1275 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1276 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1277
1278 /* DTrace related functions.
1279    The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1280    NARG must be >= 0. */
1281
1282 extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
1283
1284 typedef void (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1285 extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
1286 extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
1287
1288 /* True if the given ADDR does not contain the instruction sequence
1289    corresponding to a disabled DTrace is-enabled probe. */
1290
1291 extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
1292
1293 typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1294 extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
1295 extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
1296
1297 /* Enable a DTrace is-enabled probe at ADDR. */
1298
1299 extern int gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
1300
1301 typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1302 extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1303 extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
1304
1305 /* Disable a DTrace is-enabled probe at ADDR. */
1306
1307 extern int gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
1308
1309 typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1310 extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
1311 extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
1312
1313 /* True if the list of shared libraries is one and only for all
1314    processes, as opposed to a list of shared libraries per inferior.
1315    This usually means that all processes, although may or may not share
1316    an address space, will see the same set of symbols at the same
1317    addresses. */
1318
1319 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1320 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1321
1322 /* On some targets, even though each inferior has its own private
1323    address space, the debug interface takes care of making breakpoints
1324    visible to all address spaces automatically.  For such cases,
1325    this property should be set to true. */
1326
1327 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1328 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1329
1330 /* True if inferiors share an address space (e.g., uClinux). */
1331
1332 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1333 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1334 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1335
1336 /* True if a fast tracepoint can be set at an address. */
1337
1338 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1339 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
1340 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1341
1342 /* Guess register state based on tracepoint location.  Used for tracepoints
1343    where no registers have been collected, but there's only one location,
1344    allowing us to guess the PC value, and perhaps some other registers.
1345    On entry, regcache has all registers marked as unavailable. */
1346
1347 typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1348 extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
1349 extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
1350
1351 /* Return the "auto" target charset. */
1352
1353 typedef const char * (gdbarch_auto_charset_ftype) (void);
1354 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1355 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1356
1357 /* Return the "auto" target wide charset. */
1358
1359 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1360 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1361 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1362
1363 /* If non-empty, this is a file extension that will be opened in place
1364    of the file extension reported by the shared library list.
1365
1366    This is most useful for toolchains that use a post-linker tool,
1367    where the names of the files run on the target differ in extension
1368    compared to the names of the files GDB should load for debug info. */
1369
1370 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1371 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1372
1373 /* If true, the target OS has DOS-based file system semantics.  That
1374    is, absolute paths include a drive name, and the backslash is
1375    considered a directory separator. */
1376
1377 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1378 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1379
1380 /* Generate bytecodes to collect the return address in a frame.
1381    Since the bytecodes run on the target, possibly with GDB not even
1382    connected, the full unwinding machinery is not available, and
1383    typically this function will issue bytecodes for one or more likely
1384    places that the return address may be found. */
1385
1386 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1387 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1388 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1389
1390 /* Implement the "info proc" command. */
1391
1392 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1393
1394 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1395 extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1396 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1397
1398 /* Implement the "info proc" command for core files.  Noe that there
1399    are two "info_proc"-like methods on gdbarch -- one for core files,
1400    one for live targets. */
1401
1402 extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
1403
1404 typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1405 extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
1406 extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
1407
1408 /* Iterate over all objfiles in the order that makes the most sense
1409    for the architecture to make global symbol searches.
1410
1411    CB is a callback function where OBJFILE is the objfile to be searched,
1412    and CB_DATA a pointer to user-defined data (the same data that is passed
1413    when calling this gdbarch method).  The iteration stops if this function
1414    returns nonzero.
1415
1416    CB_DATA is a pointer to some user-defined data to be passed to
1417    the callback.
1418
1419    If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1420    inspected when the symbol search was requested. */
1421
1422 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);
1423 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);
1424 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);
1425
1426 /* Ravenscar arch-dependent ops. */
1427
1428 extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
1429 extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
1430
1431 /* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
1432
1433 typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1434 extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
1435 extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
1436
1437 /* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
1438
1439 typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1440 extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
1441 extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
1442
1443 /* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
1444
1445 typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1446 extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
1447 extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
1448
1449 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1450    Return 0 if *READPTR is already at the end of the buffer.
1451    Return -1 if there is insufficient buffer for a whole entry.
1452    Return 1 if an entry was read into *TYPEP and *VALP. */
1453
1454 extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
1455
1456 typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1457 extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
1458 extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
1459
1460 /* Find the address range of the current inferior's vsyscall/vDSO, and
1461    write it to *RANGE.  If the vsyscall's length can't be determined, a
1462    range with zero length is returned.  Returns true if the vsyscall is
1463    found, false otherwise. */
1464
1465 typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
1466 extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
1467 extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
1468
1469 /* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1470    PROT has GDB_MMAP_PROT_* bitmask format.
1471    Throw an error if it is not possible.  Returned address is always valid. */
1472
1473 typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
1474 extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
1475 extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
1476
1477 /* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1478    Print a warning if it is not possible. */
1479
1480 typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
1481 extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
1482 extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
1483
1484 /* Return string (caller has to use xfree for it) with options for GCC
1485    to produce code for this target, typically "-m64", "-m32" or "-m31".
1486    These options are put before CU's DW_AT_producer compilation options so that
1487    they can override it.  Method may also return NULL. */
1488
1489 typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
1490 extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
1491 extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
1492
1493 /* Return a regular expression that matches names used by this
1494    architecture in GNU configury triplets.  The result is statically
1495    allocated and must not be freed.  The default implementation simply
1496    returns the BFD architecture name, which is correct in nearly every
1497    case. */
1498
1499 typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
1500 extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
1501 extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
1502
1503 /* Return the size in 8-bit bytes of an addressable memory unit on this
1504    architecture.  This corresponds to the number of 8-bit bytes associated to
1505    each address in memory. */
1506
1507 typedef int (gdbarch_addressable_memory_unit_size_ftype) (struct gdbarch *gdbarch);
1508 extern int gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch);
1509 extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, gdbarch_addressable_memory_unit_size_ftype *addressable_memory_unit_size);
1510
1511 /* Definition for an unknown syscall, used basically in error-cases.  */
1512 #define UNKNOWN_SYSCALL (-1)
1513
1514 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1515
1516
1517 /* Mechanism for co-ordinating the selection of a specific
1518    architecture.
1519
1520    GDB targets (*-tdep.c) can register an interest in a specific
1521    architecture.  Other GDB components can register a need to maintain
1522    per-architecture data.
1523
1524    The mechanisms below ensures that there is only a loose connection
1525    between the set-architecture command and the various GDB
1526    components.  Each component can independently register their need
1527    to maintain architecture specific data with gdbarch.
1528
1529    Pragmatics:
1530
1531    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1532    didn't scale.
1533
1534    The more traditional mega-struct containing architecture specific
1535    data for all the various GDB components was also considered.  Since
1536    GDB is built from a variable number of (fairly independent)
1537    components it was determined that the global aproach was not
1538    applicable.  */
1539
1540
1541 /* Register a new architectural family with GDB.
1542
1543    Register support for the specified ARCHITECTURE with GDB.  When
1544    gdbarch determines that the specified architecture has been
1545    selected, the corresponding INIT function is called.
1546
1547    --
1548
1549    The INIT function takes two parameters: INFO which contains the
1550    information available to gdbarch about the (possibly new)
1551    architecture; ARCHES which is a list of the previously created
1552    ``struct gdbarch'' for this architecture.
1553
1554    The INFO parameter is, as far as possible, be pre-initialized with
1555    information obtained from INFO.ABFD or the global defaults.
1556
1557    The ARCHES parameter is a linked list (sorted most recently used)
1558    of all the previously created architures for this architecture
1559    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1560    values from the previously selected architecture for this
1561    architecture family.
1562
1563    The INIT function shall return any of: NULL - indicating that it
1564    doesn't recognize the selected architecture; an existing ``struct
1565    gdbarch'' from the ARCHES list - indicating that the new
1566    architecture is just a synonym for an earlier architecture (see
1567    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1568    - that describes the selected architecture (see gdbarch_alloc()).
1569
1570    The DUMP_TDEP function shall print out all target specific values.
1571    Care should be taken to ensure that the function works in both the
1572    multi-arch and non- multi-arch cases.  */
1573
1574 struct gdbarch_list
1575 {
1576   struct gdbarch *gdbarch;
1577   struct gdbarch_list *next;
1578 };
1579
1580 struct gdbarch_info
1581 {
1582   /* Use default: NULL (ZERO).  */
1583   const struct bfd_arch_info *bfd_arch_info;
1584
1585   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1586   enum bfd_endian byte_order;
1587
1588   enum bfd_endian byte_order_for_code;
1589
1590   /* Use default: NULL (ZERO).  */
1591   bfd *abfd;
1592
1593   /* Use default: NULL (ZERO).  */
1594   void *tdep_info;
1595
1596   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1597   enum gdb_osabi osabi;
1598
1599   /* Use default: NULL (ZERO).  */
1600   const struct target_desc *target_desc;
1601 };
1602
1603 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1604 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1605
1606 /* DEPRECATED - use gdbarch_register() */
1607 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1608
1609 extern void gdbarch_register (enum bfd_architecture architecture,
1610                               gdbarch_init_ftype *,
1611                               gdbarch_dump_tdep_ftype *);
1612
1613
1614 /* Return a freshly allocated, NULL terminated, array of the valid
1615    architecture names.  Since architectures are registered during the
1616    _initialize phase this function only returns useful information
1617    once initialization has been completed.  */
1618
1619 extern const char **gdbarch_printable_names (void);
1620
1621
1622 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1623    matches the information provided by INFO.  */
1624
1625 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1626
1627
1628 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1629    basic initialization using values obtained from the INFO and TDEP
1630    parameters.  set_gdbarch_*() functions are called to complete the
1631    initialization of the object.  */
1632
1633 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1634
1635
1636 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1637    It is assumed that the caller freeds the ``struct
1638    gdbarch_tdep''.  */
1639
1640 extern void gdbarch_free (struct gdbarch *);
1641
1642
1643 /* Helper function.  Allocate memory from the ``struct gdbarch''
1644    obstack.  The memory is freed when the corresponding architecture
1645    is also freed.  */
1646
1647 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1648 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1649 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1650
1651 /* Duplicate STRING, returning an equivalent string that's allocated on the
1652    obstack associated with GDBARCH.  The string is freed when the corresponding
1653    architecture is also freed.  */
1654
1655 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1656
1657 /* Helper function.  Force an update of the current architecture.
1658
1659    The actual architecture selected is determined by INFO, ``(gdb) set
1660    architecture'' et.al., the existing architecture and BFD's default
1661    architecture.  INFO should be initialized to zero and then selected
1662    fields should be updated.
1663
1664    Returns non-zero if the update succeeds.  */
1665
1666 extern int gdbarch_update_p (struct gdbarch_info info);
1667
1668
1669 /* Helper function.  Find an architecture matching info.
1670
1671    INFO should be initialized using gdbarch_info_init, relevant fields
1672    set, and then finished using gdbarch_info_fill.
1673
1674    Returns the corresponding architecture, or NULL if no matching
1675    architecture was found.  */
1676
1677 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1678
1679
1680 /* Helper function.  Set the target gdbarch to "gdbarch".  */
1681
1682 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1683
1684
1685 /* Register per-architecture data-pointer.
1686
1687    Reserve space for a per-architecture data-pointer.  An identifier
1688    for the reserved data-pointer is returned.  That identifer should
1689    be saved in a local static variable.
1690
1691    Memory for the per-architecture data shall be allocated using
1692    gdbarch_obstack_zalloc.  That memory will be deleted when the
1693    corresponding architecture object is deleted.
1694
1695    When a previously created architecture is re-selected, the
1696    per-architecture data-pointer for that previous architecture is
1697    restored.  INIT() is not re-called.
1698
1699    Multiple registrarants for any architecture are allowed (and
1700    strongly encouraged).  */
1701
1702 struct gdbarch_data;
1703
1704 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1705 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1706 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1707 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1708 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1709                                          struct gdbarch_data *data,
1710                                          void *pointer);
1711
1712 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1713
1714
1715 /* Set the dynamic target-system-dependent parameters (architecture,
1716    byte-order, ...) using information found in the BFD.  */
1717
1718 extern void set_gdbarch_from_file (bfd *);
1719
1720
1721 /* Initialize the current architecture to the "first" one we find on
1722    our list.  */
1723
1724 extern void initialize_current_architecture (void);
1725
1726 /* gdbarch trace variable */
1727 extern unsigned int gdbarch_debug;
1728
1729 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1730
1731 #endif