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