gdb/gdbarch.h

   1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
   2
   3 /* Dynamic architecture support for GDB, the GNU debugger.
   4
   5    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   6    2007, 2008, 2009 Free Software Foundation, Inc.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 /* This file was created with the aid of ``gdbarch.sh''.
  24
  25    The Bourne shell script ``gdbarch.sh'' creates the files
  26    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  27    against the existing ``gdbarch.[hc]''.  Any differences found
  28    being reported.
  29
  30    If editing this file, please also run gdbarch.sh and merge any
  31    changes into that script. Conversely, when making sweeping changes
  32    to this file, modifying gdbarch.sh and using its output may prove
  33    easier.  */
  34
  35 #ifndef GDBARCH_H
  36 #define GDBARCH_H
  37
  38 struct floatformat;
  39 struct ui_file;
  40 struct frame_info;
  41 struct value;
  42 struct objfile;
  43 struct obj_section;
  44 struct minimal_symbol;
  45 struct regcache;
  46 struct reggroup;
  47 struct regset;
  48 struct disassemble_info;
  49 struct target_ops;
  50 struct obstack;
  51 struct bp_target_info;
  52 struct target_desc;
  53 struct displaced_step_closure;
  54 struct core_regset_section;
  55 struct syscall;
  56 struct agent_expr;
  57 struct axs_value;
  58 struct stap_parse_info;
  59
  60 /* The architecture associated with the connection to the target.
  61
  62    The architecture vector provides some information that is really
  63    a property of the target: The layout of certain packets, for instance;
  64    or the solib_ops vector.  Etc.  To differentiate architecture accesses
  65    to per-target properties from per-thread/per-frame/per-objfile properties,
  66    accesses to per-target properties should be made through target_gdbarch.
  67
  68    Eventually, when support for multiple targets is implemented in
  69    GDB, this global should be made target-specific.  */
  70 extern struct gdbarch *target_gdbarch;
  71
  72
  73 /* The following are pre-initialized by GDBARCH.  */
  74
  75 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  76 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized.  */
  77
  78 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  79 /* set_gdbarch_byte_order() - not applicable - pre-initialized.  */
  80
  81 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
  82 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized.  */
  83
  84 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  85 /* set_gdbarch_osabi() - not applicable - pre-initialized.  */
  86
  87 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  88 /* set_gdbarch_target_desc() - not applicable - pre-initialized.  */
  89
  90
  91 /* The following are initialized by the target dependent code.  */
  92
  93 /* The bit byte-order has to do just with numbering of bits in debugging symbols
  94    and such.  Conceptually, it's quite separate from byte/word byte order. */
  95
  96 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
  97 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
  98
  99 /* Number of bits in a char or unsigned char for the target machine.
 100    Just like CHAR_BIT in <limits.h> but describes the target machine.
 101    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 102
 103    Number of bits in a short or unsigned short for the target machine. */
 104
 105 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
 106 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
 107
 108 /* Number of bits in an int or unsigned int for the target machine. */
 109
 110 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 111 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 112
 113 /* Number of bits in a long or unsigned long for the target machine. */
 114
 115 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 116 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 117
 118 /* Number of bits in a long long or unsigned long long for the target
 119    machine. */
 120
 121 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 122 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 123
 124 /* Alignment of a long long or unsigned long long for the target
 125    machine. */
 126
 127 extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch);
 128 extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit);
 129
 130 /* The ABI default bit-size and format for "half", "float", "double", and
 131    "long double".  These bit/format pairs should eventually be combined
 132    into a single object.  For the moment, just initialize them as a pair.
 133    Each format describes both the big and little endian layouts (if
 134    useful). */
 135
 136 extern int gdbarch_half_bit (struct gdbarch *gdbarch);
 137 extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
 138
 139 extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
 140 extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
 141
 142 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 143 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 144
 145 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 146 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 147
 148 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 149 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 150
 151 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 152 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 153
 154 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 155 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 156
 157 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 158 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 159
 160 /* For most targets, a pointer on the target and its representation as an
 161    address in GDB have the same size and "look the same".  For such a
 162    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 163    / addr_bit will be set from it.
 164
 165    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 166    also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
 167    gdbarch_address_to_pointer as well.
 168
 169    ptr_bit is the size of a pointer on the target */
 170
 171 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 172 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 173
 174 /* addr_bit is the size of a target address as represented in gdb */
 175
 176 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 177 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 178
 179 /* dwarf2_addr_size is the target address size as used in the Dwarf debug
 180    info.  For .debug_frame FDEs, this is supposed to be the target address
 181    size from the associated CU header, and which is equivalent to the
 182    DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
 183    Unfortunately there is no good way to determine this value.  Therefore
 184    dwarf2_addr_size simply defaults to the target pointer size.
 185
 186    dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
 187    defined using the target's pointer size so far.
 188
 189    Note that dwarf2_addr_size only needs to be redefined by a target if the
 190    GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
 191    and if Dwarf versions < 4 need to be supported. */
 192
 193 extern int gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch);
 194 extern void set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch, int dwarf2_addr_size);
 195
 196 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 197
 198 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 199 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 200
 201 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 202
 203 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 204 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 205 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 206
 207 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 208
 209 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 210 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 211 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 212
 213 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 214    whole scheme for dealing with "frames" and "frame pointers" needs a
 215    serious shakedown. */
 216
 217 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 218 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 219 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 220
 221 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 222
 223 typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 224 extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 225 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 226
 227 /* Read a register into a new struct value.  If the register is wholly
 228    or partly unavailable, this should call mark_value_bytes_unavailable
 229    as appropriate.  If this is defined, then pseudo_register_read will
 230    never be called. */
 231
 232 extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch);
 233
 234 typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 235 extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum);
 236 extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value);
 237
 238 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 239
 240 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 241 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 242 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 243
 244 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 245 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 246
 247 /* This macro gives the number of pseudo-registers that live in the
 248    register namespace but do not get fetched or stored on the target.
 249    These pseudo-registers may be aliases for other registers,
 250    combinations of other registers, or they may be computed by GDB. */
 251
 252 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 253 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 254
 255 /* Assemble agent expression bytecode to collect pseudo-register REG.
 256    Return -1 if something goes wrong, 0 otherwise. */
 257
 258 extern int gdbarch_ax_pseudo_register_collect_p (struct gdbarch *gdbarch);
 259
 260 typedef int (gdbarch_ax_pseudo_register_collect_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 261 extern int gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 262 extern void set_gdbarch_ax_pseudo_register_collect (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_collect_ftype *ax_pseudo_register_collect);
 263
 264 /* Assemble agent expression bytecode to push the value of pseudo-register
 265    REG on the interpreter stack.
 266    Return -1 if something goes wrong, 0 otherwise. */
 267
 268 extern int gdbarch_ax_pseudo_register_push_stack_p (struct gdbarch *gdbarch);
 269
 270 typedef int (gdbarch_ax_pseudo_register_push_stack_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 271 extern int gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, struct agent_expr *ax, int reg);
 272 extern void set_gdbarch_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, gdbarch_ax_pseudo_register_push_stack_ftype *ax_pseudo_register_push_stack);
 273
 274 /* GDB's standard (or well known) register numbers.  These can map onto
 275    a real register or a pseudo (computed) register or not be defined at
 276    all (-1).
 277    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 278
 279 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 280 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 281
 282 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 283 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 284
 285 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 286 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 287
 288 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 289 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 290
 291 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 292
 293 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 294 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 295 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 296
 297 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 298
 299 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 300 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 301 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 302
 303 /* Convert from an sdb register number to an internal gdb register number. */
 304
 305 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 306 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 307 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 308
 309 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
 310
 311 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 312 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 313 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 314
 315 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 316 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 317 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 318
 319 /* Return the type of a register specified by the architecture.  Only
 320    the register cache should call this function directly; others should
 321    use "register_type". */
 322
 323 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 324
 325 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 326 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 327 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 328
 329 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 330
 331 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 332
 333 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 334 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 335 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 336
 337 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 338    deprecated_fp_regnum. */
 339
 340 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 341 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 342
 343 /* See gdbint.texinfo.  See infcall.c. */
 344
 345 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 346
 347 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);
 348 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);
 349 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 350
 351 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 352 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 353
 354 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 355
 356 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);
 357 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);
 358 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 359
 360 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 361 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 362 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 363
 364 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 365
 366 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 367 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 368 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 369
 370 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 371
 372 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 373 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 374 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 375
 376 /* MAP a GDB RAW register number onto a simulator register number.  See
 377    also include/...-sim.h. */
 378
 379 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 380 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 381 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 382
 383 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 384 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 385 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 386
 387 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 388 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 389 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 390
 391 /* setjmp/longjmp support. */
 392
 393 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 394
 395 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 396 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 397 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 398
 399 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 400 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 401
 402 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 403 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 404 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 405
 406 typedef int (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep);
 407 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);
 408 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 409
 410 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 411 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 412 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 413
 414 /* Construct a value representing the contents of register REGNUM in
 415    frame FRAME, interpreted as type TYPE.  The routine needs to
 416    allocate and return a struct value with all value attributes
 417    (but not the value contents) filled in. */
 418
 419 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 420 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 421 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 422
 423 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 424 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 425 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 426
 427 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 428 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 429 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 430
 431 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 432
 433 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 434 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 435 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 436
 437 /* Return the return-value convention that will be used by FUNCTYPE
 438    to return a value of type VALTYPE.  FUNCTYPE may be NULL in which
 439    case the return convention is computed based only on VALTYPE.
 440
 441    If READBUF is not NULL, extract the return value and save it in this buffer.
 442
 443    If WRITEBUF is not NULL, it contains a return value which will be
 444    stored into the appropriate register.  This can be used when we want
 445    to force the value returned by a function (see the "return" command
 446    for instance). */
 447
 448 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 449
 450 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 451 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 452 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 453
 454 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 455 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 456 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 457
 458 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 459
 460 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 461 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 462 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 463
 464 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 465 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 466 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 467
 468 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 469 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 470 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 471
 472 /* Return the adjusted address and kind to use for Z0/Z1 packets.
 473    KIND is usually the memory length of the breakpoint, but may have a
 474    different target-specific meaning. */
 475
 476 typedef void (gdbarch_remote_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 477 extern void gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *kindptr);
 478 extern void set_gdbarch_remote_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc);
 479
 480 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 481
 482 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 483 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 484 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 485
 486 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 487 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 488 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 489
 490 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 491 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 492 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 493
 494 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 495 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 496
 497 /* A function can be addressed by either it's "pointer" (possibly a
 498    descriptor address) or "entry point" (first executable instruction).
 499    The method "convert_from_func_ptr_addr" converting the former to the
 500    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 501    a simplified subset of that functionality - the function's address
 502    corresponds to the "function pointer" and the function's start
 503    corresponds to the "function entry point" - and hence is redundant. */
 504
 505 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 506 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 507
 508 /* Return the remote protocol register number associated with this
 509    register.  Normally the identity mapping. */
 510
 511 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 512 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 513 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 514
 515 /* Fetch the target specific address used to represent a load module. */
 516
 517 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 518
 519 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 520 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 521 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 522
 523 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 524 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 525
 526 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 527
 528 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 529 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 530 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 531
 532 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 533
 534 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 535 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 536 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 537
 538 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 539    frame-base.  Enable frame-base before frame-unwind. */
 540
 541 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 542
 543 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 544 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 545 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 546
 547 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 548
 549 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 550 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 551 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 552
 553 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 554 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 555 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 556
 557 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 558 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 559
 560 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 561 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 562 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 563
 564 /* On some machines there are bits in addresses which are not really
 565    part of the address, but are used by the kernel, the hardware, etc.
 566    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 567    we get a "real" address such as one would find in a symbol table.
 568    This is used only for addresses of instructions, and even then I'm
 569    not sure it's used in all contexts.  It exists to deal with there
 570    being a few stray bits in the PC which would mislead us, not as some
 571    sort of generic thing to handle alignment or segmentation (it's
 572    possible it should be in TARGET_READ_PC instead). */
 573
 574 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 575 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 576 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 577
 578 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 579    gdbarch_addr_bits_remove. */
 580
 581 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 582 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 583 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 584
 585 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 586    indicates if the target needs software single step.  An ISA method to
 587    implement it.
 588
 589    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 590    breakpoints using the breakpoint system instead of blatting memory directly
 591    (as with rs6000).
 592
 593    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 594    target can single step.  If not, then implement single step using breakpoints.
 595
 596    A return value of 1 means that the software_single_step breakpoints
 597    were inserted; 0 means they were not. */
 598
 599 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 600
 601 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 602 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 603 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 604
 605 /* Return non-zero if the processor is executing a delay slot and a
 606    further single-step is needed before the instruction finishes. */
 607
 608 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 609
 610 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 611 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 612 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 613
 614 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 615    disassembler.  Perhaps objdump can handle it? */
 616
 617 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 618 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 619 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 620
 621 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 622 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 623 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 624
 625 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 626    evaluates non-zero, this is the address where the debugger will place
 627    a step-resume breakpoint to get us past the dynamic linker. */
 628
 629 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 630 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 631 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 632
 633 /* Some systems also have trampoline code for returning from shared libs. */
 634
 635 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 636 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
 637 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 638
 639 /* A target might have problems with watchpoints as soon as the stack
 640    frame of the current function has been destroyed.  This mostly happens
 641    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 642    is defined to return a non-zero value if either the given addr is one
 643    instruction after the stack destroying instruction up to the trailing
 644    return instruction or if we can figure out that the stack frame has
 645    already been invalidated regardless of the value of addr.  Targets
 646    which don't suffer from that problem could just let this functionality
 647    untouched. */
 648
 649 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 650 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 651 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 652
 653 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 654 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 655 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 656
 657 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 658 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 659 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 660
 661 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 662 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 663
 664 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 665 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 666
 667 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 668
 669 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 670 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 671 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 672
 673 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 674
 675 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 676 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 677 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);
 678
 679 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 680
 681 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 682 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 683 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);
 684
 685 /* Is a register in a group */
 686
 687 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 688 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 689 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 690
 691 /* Fetch the pointer to the ith function argument. */
 692
 693 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 694
 695 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 696 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 697 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 698
 699 /* Return the appropriate register set for a core file section with
 700    name SECT_NAME and size SECT_SIZE. */
 701
 702 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 703
 704 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 705 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 706 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 707
 708 /* Supported register notes in a core file. */
 709
 710 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
 711 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
 712
 713 /* Create core file notes */
 714
 715 extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
 716
 717 typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 718 extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
 719 extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
 720
 721 /* Find core file memory regions */
 722
 723 extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
 724
 725 typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 726 extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
 727 extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
 728
 729 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 730    core file into buffer READBUF with length LEN. */
 731
 732 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 733
 734 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 735 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 736 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 737
 738 /* How the core target converts a PTID from a core file to a string. */
 739
 740 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 741
 742 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 743 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 744 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 745
 746 /* BFD target to use when generating a core file. */
 747
 748 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 749
 750 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 751 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 752
 753 /* If the elements of C++ vtables are in-place function descriptors rather
 754    than normal function pointers (which may point to code or a descriptor),
 755    set this to one. */
 756
 757 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 758 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 759
 760 /* Set if the least significant bit of the delta is used instead of the least
 761    significant bit of the pfn for pointers to virtual member functions. */
 762
 763 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 764 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 765
 766 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 767
 768 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 769
 770 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 771 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 772 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 773
 774 /* The maximum length of an instruction on this architecture in bytes. */
 775
 776 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 777
 778 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 779 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 780
 781 /* Copy the instruction at FROM to TO, and make any adjustments
 782    necessary to single-step it at that address.
 783
 784    REGS holds the state the thread's registers will have before
 785    executing the copied instruction; the PC in REGS will refer to FROM,
 786    not the copy at TO.  The caller should update it to point at TO later.
 787
 788    Return a pointer to data of the architecture's choice to be passed
 789    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 790    the instruction's effects have been completely simulated, with the
 791    resulting state written back to REGS.
 792
 793    For a general explanation of displaced stepping and how GDB uses it,
 794    see the comments in infrun.c.
 795
 796    The TO area is only guaranteed to have space for
 797    gdbarch_max_insn_length (arch) bytes, so this function must not
 798    write more bytes than that to that area.
 799
 800    If you do not provide this function, GDB assumes that the
 801    architecture does not support displaced stepping.
 802
 803    If your architecture doesn't need to adjust instructions before
 804    single-stepping them, consider using simple_displaced_step_copy_insn
 805    here. */
 806
 807 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 808
 809 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 810 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 811 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 812
 813 /* Return true if GDB should use hardware single-stepping to execute
 814    the displaced instruction identified by CLOSURE.  If false,
 815    GDB will simply restart execution at the displaced instruction
 816    location, and it is up to the target to ensure GDB will receive
 817    control again (e.g. by placing a software breakpoint instruction
 818    into the displaced instruction buffer).
 819
 820    The default implementation returns false on all targets that
 821    provide a gdbarch_software_single_step routine, and true otherwise. */
 822
 823 typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 824 extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 825 extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
 826
 827 /* Fix up the state resulting from successfully single-stepping a
 828    displaced instruction, to give the result we would have gotten from
 829    stepping the instruction in its original location.
 830
 831    REGS is the register state resulting from single-stepping the
 832    displaced instruction.
 833
 834    CLOSURE is the result from the matching call to
 835    gdbarch_displaced_step_copy_insn.
 836
 837    If you provide gdbarch_displaced_step_copy_insn.but not this
 838    function, then GDB assumes that no fixup is needed after
 839    single-stepping the instruction.
 840
 841    For a general explanation of displaced stepping and how GDB uses it,
 842    see the comments in infrun.c. */
 843
 844 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 845
 846 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 847 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 848 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 849
 850 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 851
 852    If you provide gdbarch_displaced_step_copy_insn, you must provide
 853    this function as well.
 854
 855    If your architecture uses closures that don't need to be freed, then
 856    you can use simple_displaced_step_free_closure here.
 857
 858    For a general explanation of displaced stepping and how GDB uses it,
 859    see the comments in infrun.c. */
 860
 861 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 862 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 863 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
 864
 865 /* Return the address of an appropriate place to put displaced
 866    instructions while we step over them.  There need only be one such
 867    place, since we're only stepping one thread over a breakpoint at a
 868    time.
 869
 870    For a general explanation of displaced stepping and how GDB uses it,
 871    see the comments in infrun.c. */
 872
 873 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
 874 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
 875 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
 876
 877 /* Relocate an instruction to execute at a different address.  OLDLOC
 878    is the address in the inferior memory where the instruction to
 879    relocate is currently at.  On input, TO points to the destination
 880    where we want the instruction to be copied (and possibly adjusted)
 881    to.  On output, it points to one past the end of the resulting
 882    instruction(s).  The effect of executing the instruction at TO shall
 883    be the same as if executing it at FROM.  For example, call
 884    instructions that implicitly push the return address on the stack
 885    should be adjusted to return to the instruction after OLDLOC;
 886    relative branches, and other PC-relative instructions need the
 887    offset adjusted; etc. */
 888
 889 extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
 890
 891 typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 892 extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
 893 extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
 894
 895 /* Refresh overlay mapped state for section OSECT. */
 896
 897 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 898
 899 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 900 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 901 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 902
 903 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
 904
 905 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 906 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 907 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
 908
 909 /* Handle special encoding of static variables in stabs debug info. */
 910
 911 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
 912
 913 typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
 914 extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
 915 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
 916
 917 /* Set if the address in N_SO or N_FUN stabs may be zero. */
 918
 919 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
 920 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
 921
 922 /* Parse the instruction at ADDR storing in the record execution log
 923    the registers REGCACHE and memory ranges that will be affected when
 924    the instruction executes, along with their current values.
 925    Return -1 if something goes wrong, 0 otherwise. */
 926
 927 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
 928
 929 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 930 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 931 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
 932
 933 /* Save process state after a signal.
 934    Return -1 if something goes wrong, 0 otherwise. */
 935
 936 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
 937
 938 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 939 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 940 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
 941
 942 /* Signal translation: translate inferior's signal (host's) number into
 943    GDB's representation. */
 944
 945 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
 946 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
 947 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
 948
 949 /* Signal translation: translate GDB's signal number into inferior's host
 950    signal number. */
 951
 952 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
 953 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
 954 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
 955
 956 /* Extra signal info inspection.
 957
 958    Return a type suitable to inspect extra signal information. */
 959
 960 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
 961
 962 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
 963 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
 964 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
 965
 966 /* Record architecture-specific information from the symbol table. */
 967
 968 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
 969
 970 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 971 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 972 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
 973
 974 /* Function for the 'catch syscall' feature.
 975    Get architecture-specific system calls information from registers. */
 976
 977 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
 978
 979 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 980 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
 981 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
 982
 983 /* SystemTap related fields and functions.
 984    Prefix used to mark an integer constant on the architecture's assembly
 985    For example, on x86 integer constants are written as:
 986
 987     $10 ;; integer constant 10
 988
 989    in this case, this prefix would be the character `$'. */
 990
 991 extern const char * gdbarch_stap_integer_prefix (struct gdbarch *gdbarch);
 992 extern void set_gdbarch_stap_integer_prefix (struct gdbarch *gdbarch, const char * stap_integer_prefix);
 993
 994 /* Suffix used to mark an integer constant on the architecture's assembly. */
 995
 996 extern const char * gdbarch_stap_integer_suffix (struct gdbarch *gdbarch);
 997 extern void set_gdbarch_stap_integer_suffix (struct gdbarch *gdbarch, const char * stap_integer_suffix);
 998
 999 /* Prefix used to mark a register name on the architecture's assembly.
1000    For example, on x86 the register name is written as:
1001
1002     %eax ;; register eax
1003
1004    in this case, this prefix would be the character `%'. */
1005
1006 extern const char * gdbarch_stap_register_prefix (struct gdbarch *gdbarch);
1007 extern void set_gdbarch_stap_register_prefix (struct gdbarch *gdbarch, const char * stap_register_prefix);
1008
1009 /* Suffix used to mark a register name on the architecture's assembly */
1010
1011 extern const char * gdbarch_stap_register_suffix (struct gdbarch *gdbarch);
1012 extern void set_gdbarch_stap_register_suffix (struct gdbarch *gdbarch, const char * stap_register_suffix);
1013
1014 /* Prefix used to mark a register indirection on the architecture's assembly.
1015    For example, on x86 the register indirection is written as:
1016
1017     (%eax) ;; indirecting eax
1018
1019    in this case, this prefix would be the charater `('.
1020
1021    Please note that we use the indirection prefix also for register
1022    displacement, e.g., `4(%eax)' on x86. */
1023
1024 extern const char * gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch);
1025 extern void set_gdbarch_stap_register_indirection_prefix (struct gdbarch *gdbarch, const char * stap_register_indirection_prefix);
1026
1027 /* Suffix used to mark a register indirection on the architecture's assembly.
1028    For example, on x86 the register indirection is written as:
1029
1030     (%eax) ;; indirecting eax
1031
1032    in this case, this prefix would be the charater `)'.
1033
1034    Please note that we use the indirection suffix also for register
1035    displacement, e.g., `4(%eax)' on x86. */
1036
1037 extern const char * gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch);
1038 extern void set_gdbarch_stap_register_indirection_suffix (struct gdbarch *gdbarch, const char * stap_register_indirection_suffix);
1039
1040 /* Prefix used to name a register using GDB's nomenclature.
1041
1042    For example, on PPC a register is represented by a number in the assembly
1043    language (e.g., `10' is the 10th general-purpose register).  However,
1044    inside GDB this same register has an `r' appended to its name, so the 10th
1045    register would be represented as `r10' internally. */
1046
1047 extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
1048 extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
1049
1050 /* Suffix used to name a register using GDB's nomenclature. */
1051
1052 extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
1053 extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
1054
1055 /* Check if S is a single operand.
1056
1057    Single operands can be:
1058     - Literal integers, e.g. `$10' on x86
1059     - Register access, e.g. `%eax' on x86
1060     - Register indirection, e.g. `(%eax)' on x86
1061     - Register displacement, e.g. `4(%eax)' on x86
1062
1063    This function should check for these patterns on the string
1064    and return 1 if some were found, or zero otherwise.  Please try to match
1065    as much info as you can from the string, i.e., if you have to match
1066    something like `(%', do not match just the `('. */
1067
1068 extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
1069
1070 typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
1071 extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
1072 extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
1073
1074 /* Function used to handle a "special case" in the parser.
1075
1076    A "special case" is considered to be an unknown token, i.e., a token
1077    that the parser does not know how to parse.  A good example of special
1078    case would be ARM's register displacement syntax:
1079
1080     [R0, #4]  ;; displacing R0 by 4
1081
1082    Since the parser assumes that a register displacement is of the form:
1083
1084     <number> <indirection_prefix> <register_name> <indirection_suffix>
1085
1086    it means that it will not be able to recognize and parse this odd syntax.
1087    Therefore, we should add a special case function that will handle this token.
1088
1089    This function should generate the proper expression form of the expression
1090    using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
1091    and so on).  It should also return 1 if the parsing was successful, or zero
1092    if the token was not recognized as a special token (in this case, returning
1093    zero means that the special parser is deferring the parsing to the generic
1094    parser), and should advance the buffer pointer (p->arg). */
1095
1096 extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
1097
1098 typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
1099 extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
1100 extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
1101
1102 /* True if the list of shared libraries is one and only for all
1103    processes, as opposed to a list of shared libraries per inferior.
1104    This usually means that all processes, although may or may not share
1105    an address space, will see the same set of symbols at the same
1106    addresses. */
1107
1108 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
1109 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
1110
1111 /* On some targets, even though each inferior has its own private
1112    address space, the debug interface takes care of making breakpoints
1113    visible to all address spaces automatically.  For such cases,
1114    this property should be set to true. */
1115
1116 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
1117 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
1118
1119 /* True if inferiors share an address space (e.g., uClinux). */
1120
1121 typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
1122 extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
1123 extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
1124
1125 /* True if a fast tracepoint can be set at an address. */
1126
1127 typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1128 extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg);
1129 extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
1130
1131 /* Return the "auto" target charset. */
1132
1133 typedef const char * (gdbarch_auto_charset_ftype) (void);
1134 extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
1135 extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
1136
1137 /* Return the "auto" target wide charset. */
1138
1139 typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
1140 extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
1141 extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
1142
1143 /* If non-empty, this is a file extension that will be opened in place
1144    of the file extension reported by the shared library list.
1145
1146    This is most useful for toolchains that use a post-linker tool,
1147    where the names of the files run on the target differ in extension
1148    compared to the names of the files GDB should load for debug info. */
1149
1150 extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
1151 extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
1152
1153 /* If true, the target OS has DOS-based file system semantics.  That
1154    is, absolute paths include a drive name, and the backslash is
1155    considered a directory separator. */
1156
1157 extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
1158 extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
1159
1160 /* Generate bytecodes to collect the return address in a frame.
1161    Since the bytecodes run on the target, possibly with GDB not even
1162    connected, the full unwinding machinery is not available, and
1163    typically this function will issue bytecodes for one or more likely
1164    places that the return address may be found. */
1165
1166 typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1167 extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
1168 extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
1169
1170 /* Implement the "info proc" command. */
1171
1172 extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
1173
1174 typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1175 extern void gdbarch_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
1176 extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
1177
1178 /* Definition for an unknown syscall, used basically in error-cases.  */
1179 #define UNKNOWN_SYSCALL (-1)
1180
1181 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1182
1183
1184 /* Mechanism for co-ordinating the selection of a specific
1185    architecture.
1186
1187    GDB targets (*-tdep.c) can register an interest in a specific
1188    architecture.  Other GDB components can register a need to maintain
1189    per-architecture data.
1190
1191    The mechanisms below ensures that there is only a loose connection
1192    between the set-architecture command and the various GDB
1193    components.  Each component can independently register their need
1194    to maintain architecture specific data with gdbarch.
1195
1196    Pragmatics:
1197
1198    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1199    didn't scale.
1200
1201    The more traditional mega-struct containing architecture specific
1202    data for all the various GDB components was also considered.  Since
1203    GDB is built from a variable number of (fairly independent)
1204    components it was determined that the global aproach was not
1205    applicable.  */
1206
1207
1208 /* Register a new architectural family with GDB.
1209
1210    Register support for the specified ARCHITECTURE with GDB.  When
1211    gdbarch determines that the specified architecture has been
1212    selected, the corresponding INIT function is called.
1213
1214    --
1215
1216    The INIT function takes two parameters: INFO which contains the
1217    information available to gdbarch about the (possibly new)
1218    architecture; ARCHES which is a list of the previously created
1219    ``struct gdbarch'' for this architecture.
1220
1221    The INFO parameter is, as far as possible, be pre-initialized with
1222    information obtained from INFO.ABFD or the global defaults.
1223
1224    The ARCHES parameter is a linked list (sorted most recently used)
1225    of all the previously created architures for this architecture
1226    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1227    values from the previously selected architecture for this
1228    architecture family.
1229
1230    The INIT function shall return any of: NULL - indicating that it
1231    doesn't recognize the selected architecture; an existing ``struct
1232    gdbarch'' from the ARCHES list - indicating that the new
1233    architecture is just a synonym for an earlier architecture (see
1234    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1235    - that describes the selected architecture (see gdbarch_alloc()).
1236
1237    The DUMP_TDEP function shall print out all target specific values.
1238    Care should be taken to ensure that the function works in both the
1239    multi-arch and non- multi-arch cases.  */
1240
1241 struct gdbarch_list
1242 {
1243   struct gdbarch *gdbarch;
1244   struct gdbarch_list *next;
1245 };
1246
1247 struct gdbarch_info
1248 {
1249   /* Use default: NULL (ZERO).  */
1250   const struct bfd_arch_info *bfd_arch_info;
1251
1252   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1253   int byte_order;
1254
1255   int byte_order_for_code;
1256
1257   /* Use default: NULL (ZERO).  */
1258   bfd *abfd;
1259
1260   /* Use default: NULL (ZERO).  */
1261   struct gdbarch_tdep_info *tdep_info;
1262
1263   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1264   enum gdb_osabi osabi;
1265
1266   /* Use default: NULL (ZERO).  */
1267   const struct target_desc *target_desc;
1268 };
1269
1270 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1271 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1272
1273 /* DEPRECATED - use gdbarch_register() */
1274 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1275
1276 extern void gdbarch_register (enum bfd_architecture architecture,
1277                               gdbarch_init_ftype *,
1278                               gdbarch_dump_tdep_ftype *);
1279
1280
1281 /* Return a freshly allocated, NULL terminated, array of the valid
1282    architecture names.  Since architectures are registered during the
1283    _initialize phase this function only returns useful information
1284    once initialization has been completed.  */
1285
1286 extern const char **gdbarch_printable_names (void);
1287
1288
1289 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1290    matches the information provided by INFO.  */
1291
1292 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1293
1294
1295 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1296    basic initialization using values obtained from the INFO and TDEP
1297    parameters.  set_gdbarch_*() functions are called to complete the
1298    initialization of the object.  */
1299
1300 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1301
1302
1303 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1304    It is assumed that the caller freeds the ``struct
1305    gdbarch_tdep''.  */
1306
1307 extern void gdbarch_free (struct gdbarch *);
1308
1309
1310 /* Helper function.  Allocate memory from the ``struct gdbarch''
1311    obstack.  The memory is freed when the corresponding architecture
1312    is also freed.  */
1313
1314 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1315 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1316 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1317
1318
1319 /* Helper function.  Force an update of the current architecture.
1320
1321    The actual architecture selected is determined by INFO, ``(gdb) set
1322    architecture'' et.al., the existing architecture and BFD's default
1323    architecture.  INFO should be initialized to zero and then selected
1324    fields should be updated.
1325
1326    Returns non-zero if the update succeeds.  */
1327
1328 extern int gdbarch_update_p (struct gdbarch_info info);
1329
1330
1331 /* Helper function.  Find an architecture matching info.
1332
1333    INFO should be initialized using gdbarch_info_init, relevant fields
1334    set, and then finished using gdbarch_info_fill.
1335
1336    Returns the corresponding architecture, or NULL if no matching
1337    architecture was found.  */
1338
1339 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1340
1341
1342 /* Helper function.  Set the global "target_gdbarch" to "gdbarch".
1343
1344    FIXME: kettenis/20031124: Of the functions that follow, only
1345    gdbarch_from_bfd is supposed to survive.  The others will
1346    dissappear since in the future GDB will (hopefully) be truly
1347    multi-arch.  However, for now we're still stuck with the concept of
1348    a single active architecture.  */
1349
1350 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1351
1352
1353 /* Register per-architecture data-pointer.
1354
1355    Reserve space for a per-architecture data-pointer.  An identifier
1356    for the reserved data-pointer is returned.  That identifer should
1357    be saved in a local static variable.
1358
1359    Memory for the per-architecture data shall be allocated using
1360    gdbarch_obstack_zalloc.  That memory will be deleted when the
1361    corresponding architecture object is deleted.
1362
1363    When a previously created architecture is re-selected, the
1364    per-architecture data-pointer for that previous architecture is
1365    restored.  INIT() is not re-called.
1366
1367    Multiple registrarants for any architecture are allowed (and
1368    strongly encouraged).  */
1369
1370 struct gdbarch_data;
1371
1372 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1373 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1374 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1375 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1376 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1377                                          struct gdbarch_data *data,
1378                                          void *pointer);
1379
1380 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1381
1382
1383 /* Set the dynamic target-system-dependent parameters (architecture,
1384    byte-order, ...) using information found in the BFD.  */
1385
1386 extern void set_gdbarch_from_file (bfd *);
1387
1388
1389 /* Initialize the current architecture to the "first" one we find on
1390    our list.  */
1391
1392 extern void initialize_current_architecture (void);
1393
1394 /* gdbarch trace variable */
1395 extern int gdbarch_debug;
1396
1397 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1398
1399 #endif