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    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 2 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, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, USA.  */
  24
  25 /* This file was created with the aid of ``gdbarch.sh''.
  26
  27    The Bourne shell script ``gdbarch.sh'' creates the files
  28    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  29    against the existing ``gdbarch.[hc]''.  Any differences found
  30    being reported.
  31
  32    If editing this file, please also run gdbarch.sh and merge any
  33    changes into that script. Conversely, when making sweeping changes
  34    to this file, modifying gdbarch.sh and using its output may prove
  35    easier. */
  36
  37 #ifndef GDBARCH_H
  38 #define GDBARCH_H
  39
  40 struct floatformat;
  41 struct ui_file;
  42 struct frame_info;
  43 struct value;
  44 struct objfile;
  45 struct obj_section;
  46 struct minimal_symbol;
  47 struct regcache;
  48 struct reggroup;
  49 struct regset;
  50 struct disassemble_info;
  51 struct target_ops;
  52 struct obstack;
  53 struct bp_target_info;
  54 struct target_desc;
  55
  56 extern struct gdbarch *current_gdbarch;
  57
  58
  59 /* The following are pre-initialized by GDBARCH. */
  60
  61 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  62 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
  63 #if !defined (GDB_TM_FILE) && defined (TARGET_ARCHITECTURE)
  64 #error "Non multi-arch definition of TARGET_ARCHITECTURE"
  65 #endif
  66 #if !defined (TARGET_ARCHITECTURE)
  67 #define TARGET_ARCHITECTURE (gdbarch_bfd_arch_info (current_gdbarch))
  68 #endif
  69
  70 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  71 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
  72
  73 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  74 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
  75
  76 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  77 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
  78
  79
  80 /* The following are initialized by the target dependent code. */
  81
  82 /* Number of bits in a char or unsigned char for the target machine.
  83    Just like CHAR_BIT in <limits.h> but describes the target machine.
  84    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
  85
  86    Number of bits in a short or unsigned short for the target machine. */
  87
  88 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
  89 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
  90 #if !defined (GDB_TM_FILE) && defined (TARGET_SHORT_BIT)
  91 #error "Non multi-arch definition of TARGET_SHORT_BIT"
  92 #endif
  93 #if !defined (TARGET_SHORT_BIT)
  94 #define TARGET_SHORT_BIT (gdbarch_short_bit (current_gdbarch))
  95 #endif
  96
  97 /* Number of bits in an int or unsigned int for the target machine. */
  98
  99 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 100 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 101 #if !defined (GDB_TM_FILE) && defined (TARGET_INT_BIT)
 102 #error "Non multi-arch definition of TARGET_INT_BIT"
 103 #endif
 104 #if !defined (TARGET_INT_BIT)
 105 #define TARGET_INT_BIT (gdbarch_int_bit (current_gdbarch))
 106 #endif
 107
 108 /* Number of bits in a long or unsigned long for the target machine. */
 109
 110 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 111 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 112 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_BIT)
 113 #error "Non multi-arch definition of TARGET_LONG_BIT"
 114 #endif
 115 #if !defined (TARGET_LONG_BIT)
 116 #define TARGET_LONG_BIT (gdbarch_long_bit (current_gdbarch))
 117 #endif
 118
 119 /* Number of bits in a long long or unsigned long long for the target
 120    machine. */
 121
 122 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 123 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 124 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_LONG_BIT)
 125 #error "Non multi-arch definition of TARGET_LONG_LONG_BIT"
 126 #endif
 127 #if !defined (TARGET_LONG_LONG_BIT)
 128 #define TARGET_LONG_LONG_BIT (gdbarch_long_long_bit (current_gdbarch))
 129 #endif
 130
 131 /* The ABI default bit-size and format for "float", "double", and "long
 132    double".  These bit/format pairs should eventually be combined into
 133    a single object.  For the moment, just initialize them as a pair.
 134    Each format describes both the big and little endian layouts (if
 135    useful). */
 136
 137 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 138 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 139 #if !defined (GDB_TM_FILE) && defined (TARGET_FLOAT_BIT)
 140 #error "Non multi-arch definition of TARGET_FLOAT_BIT"
 141 #endif
 142 #if !defined (TARGET_FLOAT_BIT)
 143 #define TARGET_FLOAT_BIT (gdbarch_float_bit (current_gdbarch))
 144 #endif
 145
 146 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 148 #if !defined (GDB_TM_FILE) && defined (TARGET_FLOAT_FORMAT)
 149 #error "Non multi-arch definition of TARGET_FLOAT_FORMAT"
 150 #endif
 151 #if !defined (TARGET_FLOAT_FORMAT)
 152 #define TARGET_FLOAT_FORMAT (gdbarch_float_format (current_gdbarch))
 153 #endif
 154
 155 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 156 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 157 #if !defined (GDB_TM_FILE) && defined (TARGET_DOUBLE_BIT)
 158 #error "Non multi-arch definition of TARGET_DOUBLE_BIT"
 159 #endif
 160 #if !defined (TARGET_DOUBLE_BIT)
 161 #define TARGET_DOUBLE_BIT (gdbarch_double_bit (current_gdbarch))
 162 #endif
 163
 164 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 165 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 166 #if !defined (GDB_TM_FILE) && defined (TARGET_DOUBLE_FORMAT)
 167 #error "Non multi-arch definition of TARGET_DOUBLE_FORMAT"
 168 #endif
 169 #if !defined (TARGET_DOUBLE_FORMAT)
 170 #define TARGET_DOUBLE_FORMAT (gdbarch_double_format (current_gdbarch))
 171 #endif
 172
 173 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 174 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 175 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_DOUBLE_BIT)
 176 #error "Non multi-arch definition of TARGET_LONG_DOUBLE_BIT"
 177 #endif
 178 #if !defined (TARGET_LONG_DOUBLE_BIT)
 179 #define TARGET_LONG_DOUBLE_BIT (gdbarch_long_double_bit (current_gdbarch))
 180 #endif
 181
 182 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 183 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 184 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_DOUBLE_FORMAT)
 185 #error "Non multi-arch definition of TARGET_LONG_DOUBLE_FORMAT"
 186 #endif
 187 #if !defined (TARGET_LONG_DOUBLE_FORMAT)
 188 #define TARGET_LONG_DOUBLE_FORMAT (gdbarch_long_double_format (current_gdbarch))
 189 #endif
 190
 191 /* For most targets, a pointer on the target and its representation as an
 192    address in GDB have the same size and "look the same".  For such a
 193    target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 194    / addr_bit will be set from it.
 195
 196    If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 197    also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
 198    as well.
 199
 200    ptr_bit is the size of a pointer on the target */
 201
 202 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 203 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 204 #if !defined (GDB_TM_FILE) && defined (TARGET_PTR_BIT)
 205 #error "Non multi-arch definition of TARGET_PTR_BIT"
 206 #endif
 207 #if !defined (TARGET_PTR_BIT)
 208 #define TARGET_PTR_BIT (gdbarch_ptr_bit (current_gdbarch))
 209 #endif
 210
 211 /* addr_bit is the size of a target address as represented in gdb */
 212
 213 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 214 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 215 #if !defined (GDB_TM_FILE) && defined (TARGET_ADDR_BIT)
 216 #error "Non multi-arch definition of TARGET_ADDR_BIT"
 217 #endif
 218 #if !defined (TARGET_ADDR_BIT)
 219 #define TARGET_ADDR_BIT (gdbarch_addr_bit (current_gdbarch))
 220 #endif
 221
 222 /* Number of bits in a BFD_VMA for the target object file format. */
 223
 224 extern int gdbarch_bfd_vma_bit (struct gdbarch *gdbarch);
 225 extern void set_gdbarch_bfd_vma_bit (struct gdbarch *gdbarch, int bfd_vma_bit);
 226 #if !defined (GDB_TM_FILE) && defined (TARGET_BFD_VMA_BIT)
 227 #error "Non multi-arch definition of TARGET_BFD_VMA_BIT"
 228 #endif
 229 #if !defined (TARGET_BFD_VMA_BIT)
 230 #define TARGET_BFD_VMA_BIT (gdbarch_bfd_vma_bit (current_gdbarch))
 231 #endif
 232
 233 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 234
 235 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 236 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 237
 238 #if defined (TARGET_READ_PC)
 239 /* Legacy for systems yet to multi-arch TARGET_READ_PC */
 240 #if !defined (TARGET_READ_PC_P)
 241 #define TARGET_READ_PC_P() (1)
 242 #endif
 243 #endif
 244
 245 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 246 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC_P)
 247 #error "Non multi-arch definition of TARGET_READ_PC"
 248 #endif
 249 #if !defined (TARGET_READ_PC_P)
 250 #define TARGET_READ_PC_P() (gdbarch_read_pc_p (current_gdbarch))
 251 #endif
 252
 253 typedef CORE_ADDR (gdbarch_read_pc_ftype) (ptid_t ptid);
 254 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, ptid_t ptid);
 255 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 256 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC)
 257 #error "Non multi-arch definition of TARGET_READ_PC"
 258 #endif
 259 #if !defined (TARGET_READ_PC)
 260 #define TARGET_READ_PC(ptid) (gdbarch_read_pc (current_gdbarch, ptid))
 261 #endif
 262
 263 typedef void (gdbarch_write_pc_ftype) (CORE_ADDR val, ptid_t ptid);
 264 extern void gdbarch_write_pc (struct gdbarch *gdbarch, CORE_ADDR val, ptid_t ptid);
 265 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 266 #if !defined (GDB_TM_FILE) && defined (TARGET_WRITE_PC)
 267 #error "Non multi-arch definition of TARGET_WRITE_PC"
 268 #endif
 269 #if !defined (TARGET_WRITE_PC)
 270 #define TARGET_WRITE_PC(val, ptid) (gdbarch_write_pc (current_gdbarch, val, ptid))
 271 #endif
 272
 273 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 274    whole scheme for dealing with "frames" and "frame pointers" needs a
 275    serious shakedown. */
 276
 277 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 278 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 279 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 280 #if !defined (GDB_TM_FILE) && defined (TARGET_VIRTUAL_FRAME_POINTER)
 281 #error "Non multi-arch definition of TARGET_VIRTUAL_FRAME_POINTER"
 282 #endif
 283 #if !defined (TARGET_VIRTUAL_FRAME_POINTER)
 284 #define TARGET_VIRTUAL_FRAME_POINTER(pc, frame_regnum, frame_offset) (gdbarch_virtual_frame_pointer (current_gdbarch, pc, frame_regnum, frame_offset))
 285 #endif
 286
 287 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 288
 289 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 290 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 291 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 292
 293 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 294
 295 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 296 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 297 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 298
 299 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 300 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 301
 302 /* This macro gives the number of pseudo-registers that live in the
 303    register namespace but do not get fetched or stored on the target.
 304    These pseudo-registers may be aliases for other registers,
 305    combinations of other registers, or they may be computed by GDB. */
 306
 307 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 308 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 309
 310 /* GDB's standard (or well known) register numbers.  These can map onto
 311    a real register or a pseudo (computed) register or not be defined at
 312    all (-1).
 313    SP_REGNUM will hopefully be replaced by UNWIND_SP. */
 314
 315 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 316 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 317 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 318 #error "Non multi-arch definition of SP_REGNUM"
 319 #endif
 320 #if !defined (SP_REGNUM)
 321 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 322 #endif
 323
 324 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 325 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 326 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 327 #error "Non multi-arch definition of PC_REGNUM"
 328 #endif
 329 #if !defined (PC_REGNUM)
 330 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 331 #endif
 332
 333 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 334 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 335 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 336 #error "Non multi-arch definition of PS_REGNUM"
 337 #endif
 338 #if !defined (PS_REGNUM)
 339 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 340 #endif
 341
 342 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 343 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 344 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 345 #error "Non multi-arch definition of FP0_REGNUM"
 346 #endif
 347 #if !defined (FP0_REGNUM)
 348 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 349 #endif
 350
 351 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 352
 353 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 354 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 355 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 356 #if !defined (GDB_TM_FILE) && defined (STAB_REG_TO_REGNUM)
 357 #error "Non multi-arch definition of STAB_REG_TO_REGNUM"
 358 #endif
 359 #if !defined (STAB_REG_TO_REGNUM)
 360 #define STAB_REG_TO_REGNUM(stab_regnr) (gdbarch_stab_reg_to_regnum (current_gdbarch, stab_regnr))
 361 #endif
 362
 363 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 364
 365 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 366 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 367 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 368 #if !defined (GDB_TM_FILE) && defined (ECOFF_REG_TO_REGNUM)
 369 #error "Non multi-arch definition of ECOFF_REG_TO_REGNUM"
 370 #endif
 371 #if !defined (ECOFF_REG_TO_REGNUM)
 372 #define ECOFF_REG_TO_REGNUM(ecoff_regnr) (gdbarch_ecoff_reg_to_regnum (current_gdbarch, ecoff_regnr))
 373 #endif
 374
 375 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 376
 377 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 378 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 379 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 380 #if !defined (GDB_TM_FILE) && defined (DWARF_REG_TO_REGNUM)
 381 #error "Non multi-arch definition of DWARF_REG_TO_REGNUM"
 382 #endif
 383 #if !defined (DWARF_REG_TO_REGNUM)
 384 #define DWARF_REG_TO_REGNUM(dwarf_regnr) (gdbarch_dwarf_reg_to_regnum (current_gdbarch, dwarf_regnr))
 385 #endif
 386
 387 /* Convert from an sdb register number to an internal gdb register number. */
 388
 389 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 390 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 391 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 392 #if !defined (GDB_TM_FILE) && defined (SDB_REG_TO_REGNUM)
 393 #error "Non multi-arch definition of SDB_REG_TO_REGNUM"
 394 #endif
 395 #if !defined (SDB_REG_TO_REGNUM)
 396 #define SDB_REG_TO_REGNUM(sdb_regnr) (gdbarch_sdb_reg_to_regnum (current_gdbarch, sdb_regnr))
 397 #endif
 398
 399 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 400 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 401 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 402 #if !defined (GDB_TM_FILE) && defined (DWARF2_REG_TO_REGNUM)
 403 #error "Non multi-arch definition of DWARF2_REG_TO_REGNUM"
 404 #endif
 405 #if !defined (DWARF2_REG_TO_REGNUM)
 406 #define DWARF2_REG_TO_REGNUM(dwarf2_regnr) (gdbarch_dwarf2_reg_to_regnum (current_gdbarch, dwarf2_regnr))
 407 #endif
 408
 409 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 410 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 411 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 412
 413 /* Return the type of a register specified by the architecture.  Only
 414    the register cache should call this function directly; others should
 415    use "register_type". */
 416
 417 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 418
 419 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 420 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 421 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 422
 423 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 424
 425 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 426
 427 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 428 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 429 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 430
 431 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 432    DEPRECATED_FP_REGNUM. */
 433
 434 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 435 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 436 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 437 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 438 #endif
 439 #if !defined (DEPRECATED_FP_REGNUM)
 440 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 441 #endif
 442
 443 /* See gdbint.texinfo.  See infcall.c. */
 444
 445 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 446
 447 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);
 448 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);
 449 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 450
 451 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 452
 453 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 454 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 455 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 456 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 457 #endif
 458 #if !defined (DEPRECATED_REGISTER_SIZE)
 459 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 460 #endif
 461
 462 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 463 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 464
 465 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 466
 467 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr);
 468 extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr);
 469 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 470
 471 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 472 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 473 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 474
 475 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 476
 477 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 478 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 479 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 480
 481 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 482
 483 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 484 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 485 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 486
 487 /* MAP a GDB RAW register number onto a simulator register number.  See
 488    also include/...-sim.h. */
 489
 490 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 491 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 492 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 493 #if !defined (GDB_TM_FILE) && defined (REGISTER_SIM_REGNO)
 494 #error "Non multi-arch definition of REGISTER_SIM_REGNO"
 495 #endif
 496 #if !defined (REGISTER_SIM_REGNO)
 497 #define REGISTER_SIM_REGNO(reg_nr) (gdbarch_register_sim_regno (current_gdbarch, reg_nr))
 498 #endif
 499
 500 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 501 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 502 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 503
 504 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 505 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 506 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 507
 508 /* setjmp/longjmp support. */
 509
 510 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 511
 512 typedef int (gdbarch_get_longjmp_target_ftype) (CORE_ADDR *pc);
 513 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, CORE_ADDR *pc);
 514 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 515
 516 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 517 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 518 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 519 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 520 #endif
 521 #if !defined (BELIEVE_PCC_PROMOTION)
 522 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 523 #endif
 524
 525 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 526 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 527 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 528 #if !defined (GDB_TM_FILE) && defined (CONVERT_REGISTER_P)
 529 #error "Non multi-arch definition of CONVERT_REGISTER_P"
 530 #endif
 531 #if !defined (CONVERT_REGISTER_P)
 532 #define CONVERT_REGISTER_P(regnum, type) (gdbarch_convert_register_p (current_gdbarch, regnum, type))
 533 #endif
 534
 535 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 536 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 537 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 538 #if !defined (GDB_TM_FILE) && defined (REGISTER_TO_VALUE)
 539 #error "Non multi-arch definition of REGISTER_TO_VALUE"
 540 #endif
 541 #if !defined (REGISTER_TO_VALUE)
 542 #define REGISTER_TO_VALUE(frame, regnum, type, buf) (gdbarch_register_to_value (current_gdbarch, frame, regnum, type, buf))
 543 #endif
 544
 545 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 546 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 547 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 548 #if !defined (GDB_TM_FILE) && defined (VALUE_TO_REGISTER)
 549 #error "Non multi-arch definition of VALUE_TO_REGISTER"
 550 #endif
 551 #if !defined (VALUE_TO_REGISTER)
 552 #define VALUE_TO_REGISTER(frame, regnum, type, buf) (gdbarch_value_to_register (current_gdbarch, frame, regnum, type, buf))
 553 #endif
 554
 555 /* Construct a value representing the contents of register REGNUM in
 556    frame FRAME, interpreted as type TYPE.  The routine needs to
 557    allocate and return a struct value with all value attributes
 558    (but not the value contents) filled in. */
 559
 560 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 561 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 562 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 563
 564 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 565 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 566 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 567
 568 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 569 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 570 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 571
 572 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 573
 574 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 575 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 576 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 577
 578 /* It has been suggested that this, well actually its predecessor,
 579    should take the type/value of the function to be called and not the
 580    return type.  This is left as an exercise for the reader.
 581    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 582    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 583    (via legacy_return_value), when a small struct is involved. */
 584
 585 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 586
 587 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 588 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 589 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 590
 591 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 592    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 593    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 594    RETURN_VALUE. */
 595
 596 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 597 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 598 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 599 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 600 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 601 #endif
 602 #if !defined (EXTRACT_RETURN_VALUE)
 603 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 604 #endif
 605
 606 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 607 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 608 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 609 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 610 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 611 #endif
 612 #if !defined (STORE_RETURN_VALUE)
 613 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 614 #endif
 615
 616 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 617 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 618 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 619 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 620 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 621 #endif
 622 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 623 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 624 #endif
 625
 626 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 627    ABI suitable for the implementation of a robust extract
 628    struct-convention return-value address method (the sparc saves the
 629    address in the callers frame).  All the other cases so far examined,
 630    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 631    erreneous - the code was incorrectly assuming that the return-value
 632    address, stored in a register, was preserved across the entire
 633    function call.
 634    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 635    the ABIs that are still to be analyzed - perhaps this should simply
 636    be deleted.  The commented out extract_returned_value_address method
 637    is provided as a starting point for the 32-bit SPARC.  It, or
 638    something like it, along with changes to both infcmd.c and stack.c
 639    will be needed for that case to work.  NB: It is passed the callers
 640    frame since it is only after the callee has returned that this
 641    function is used.
 642   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 643
 644 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 645 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 646 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 647 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 648 #endif
 649 #endif
 650
 651 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 652 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 653 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 654 #endif
 655 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 656 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 657 #endif
 658
 659 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 660 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 661 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 662 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 663 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 664 #endif
 665 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 666 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 667 #endif
 668
 669 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 670 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 671 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 672
 673 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 674 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 675 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 676
 677 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 678 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 679 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 680 #if !defined (GDB_TM_FILE) && defined (BREAKPOINT_FROM_PC)
 681 #error "Non multi-arch definition of BREAKPOINT_FROM_PC"
 682 #endif
 683 #if !defined (BREAKPOINT_FROM_PC)
 684 #define BREAKPOINT_FROM_PC(pcptr, lenptr) (gdbarch_breakpoint_from_pc (current_gdbarch, pcptr, lenptr))
 685 #endif
 686
 687 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 688
 689 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 690 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 691 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 692
 693 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 694 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 695 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 696
 697 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 698 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 699 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 700
 701 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 702 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 703
 704 /* A function can be addressed by either it's "pointer" (possibly a
 705    descriptor address) or "entry point" (first executable instruction).
 706    The method "convert_from_func_ptr_addr" converting the former to the
 707    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 708    a simplified subset of that functionality - the function's address
 709    corresponds to the "function pointer" and the function's start
 710    corresponds to the "function entry point" - and hence is redundant. */
 711
 712 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 713 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 714 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 715 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 716 #endif
 717 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 718 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 719 #endif
 720
 721 /* Return the remote protocol register number associated with this
 722    register.  Normally the identity mapping. */
 723
 724 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 725 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 726 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 727
 728 /* Fetch the target specific address used to represent a load module. */
 729
 730 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 731
 732 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 733 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 734 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 735
 736 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 737 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 738
 739 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 740
 741 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 742 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 743 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 744
 745 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 746
 747 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 748 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 749 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 750
 751 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 752    frame-base.  Enable frame-base before frame-unwind. */
 753
 754 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 755
 756 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 757 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 758 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 759
 760 /* DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 761    to frame_align and the requirement that methods such as
 762    push_dummy_call and frame_red_zone_size maintain correct stack/frame
 763    alignment. */
 764
 765 #if defined (DEPRECATED_STACK_ALIGN)
 766 /* Legacy for systems yet to multi-arch DEPRECATED_STACK_ALIGN */
 767 #if !defined (DEPRECATED_STACK_ALIGN_P)
 768 #define DEPRECATED_STACK_ALIGN_P() (1)
 769 #endif
 770 #endif
 771
 772 extern int gdbarch_deprecated_stack_align_p (struct gdbarch *gdbarch);
 773 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_STACK_ALIGN_P)
 774 #error "Non multi-arch definition of DEPRECATED_STACK_ALIGN"
 775 #endif
 776 #if !defined (DEPRECATED_STACK_ALIGN_P)
 777 #define DEPRECATED_STACK_ALIGN_P() (gdbarch_deprecated_stack_align_p (current_gdbarch))
 778 #endif
 779
 780 typedef CORE_ADDR (gdbarch_deprecated_stack_align_ftype) (CORE_ADDR sp);
 781 extern CORE_ADDR gdbarch_deprecated_stack_align (struct gdbarch *gdbarch, CORE_ADDR sp);
 782 extern void set_gdbarch_deprecated_stack_align (struct gdbarch *gdbarch, gdbarch_deprecated_stack_align_ftype *deprecated_stack_align);
 783 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_STACK_ALIGN)
 784 #error "Non multi-arch definition of DEPRECATED_STACK_ALIGN"
 785 #endif
 786 #if !defined (DEPRECATED_STACK_ALIGN)
 787 #define DEPRECATED_STACK_ALIGN(sp) (gdbarch_deprecated_stack_align (current_gdbarch, sp))
 788 #endif
 789
 790 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 791
 792 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 793 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 794 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 795
 796 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 797    stabs_argument_has_addr. */
 798
 799 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 800 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 801 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 802 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 803 #endif
 804 #endif
 805
 806 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 807 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 808 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 809 #endif
 810 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 811 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 812 #endif
 813
 814 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 815 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 816 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 817 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 818 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 819 #endif
 820 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 821 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
 822 #endif
 823
 824 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 825 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 826 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 827
 828 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 829 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 830
 831 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 832 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 833 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 834
 835 /* On some machines there are bits in addresses which are not really
 836    part of the address, but are used by the kernel, the hardware, etc.
 837    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 838    we get a "real" address such as one would find in a symbol table.
 839    This is used only for addresses of instructions, and even then I'm
 840    not sure it's used in all contexts.  It exists to deal with there
 841    being a few stray bits in the PC which would mislead us, not as some
 842    sort of generic thing to handle alignment or segmentation (it's
 843    possible it should be in TARGET_READ_PC instead). */
 844
 845 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 846 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 847 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 848
 849 /* It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 850    gdbarch_addr_bits_remove. */
 851
 852 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 853 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 854 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 855 #if !defined (GDB_TM_FILE) && defined (SMASH_TEXT_ADDRESS)
 856 #error "Non multi-arch definition of SMASH_TEXT_ADDRESS"
 857 #endif
 858 #if !defined (SMASH_TEXT_ADDRESS)
 859 #define SMASH_TEXT_ADDRESS(addr) (gdbarch_smash_text_address (current_gdbarch, addr))
 860 #endif
 861
 862 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 863    indicates if the target needs software single step.  An ISA method to
 864    implement it.
 865
 866    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 867    breakpoints using the breakpoint system instead of blatting memory directly
 868    (as with rs6000).
 869
 870    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 871    target can single step.  If not, then implement single step using breakpoints.
 872
 873    A return value of 1 means that the software_single_step breakpoints
 874    were inserted; 0 means they were not. */
 875
 876 #if defined (SOFTWARE_SINGLE_STEP)
 877 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 878 #if !defined (SOFTWARE_SINGLE_STEP_P)
 879 #define SOFTWARE_SINGLE_STEP_P() (1)
 880 #endif
 881 #endif
 882
 883 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 884 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 885 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 886 #endif
 887 #if !defined (SOFTWARE_SINGLE_STEP_P)
 888 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 889 #endif
 890
 891 typedef int (gdbarch_software_single_step_ftype) (struct regcache *regcache);
 892 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
 893 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 894 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 895 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 896 #endif
 897 #if !defined (SOFTWARE_SINGLE_STEP)
 898 #define SOFTWARE_SINGLE_STEP(regcache) (gdbarch_software_single_step (current_gdbarch, regcache))
 899 #endif
 900
 901 /* Return non-zero if the processor is executing a delay slot and a
 902    further single-step is needed before the instruction finishes. */
 903
 904 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 905
 906 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 907 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 908 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 909
 910 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 911    disassembler.  Perhaps objdump can handle it? */
 912
 913 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 914 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 915 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 916 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 917 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 918 #endif
 919 #if !defined (TARGET_PRINT_INSN)
 920 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 921 #endif
 922
 923 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (CORE_ADDR pc);
 924 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, CORE_ADDR pc);
 925 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 926 #if !defined (GDB_TM_FILE) && defined (SKIP_TRAMPOLINE_CODE)
 927 #error "Non multi-arch definition of SKIP_TRAMPOLINE_CODE"
 928 #endif
 929 #if !defined (SKIP_TRAMPOLINE_CODE)
 930 #define SKIP_TRAMPOLINE_CODE(pc) (gdbarch_skip_trampoline_code (current_gdbarch, pc))
 931 #endif
 932
 933 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 934    evaluates non-zero, this is the address where the debugger will place
 935    a step-resume breakpoint to get us past the dynamic linker. */
 936
 937 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 938 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 939 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 940
 941 /* Some systems also have trampoline code for returning from shared libs. */
 942
 943 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 944 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 945 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 946 #if !defined (GDB_TM_FILE) && defined (IN_SOLIB_RETURN_TRAMPOLINE)
 947 #error "Non multi-arch definition of IN_SOLIB_RETURN_TRAMPOLINE"
 948 #endif
 949 #if !defined (IN_SOLIB_RETURN_TRAMPOLINE)
 950 #define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) (gdbarch_in_solib_return_trampoline (current_gdbarch, pc, name))
 951 #endif
 952
 953 /* A target might have problems with watchpoints as soon as the stack
 954    frame of the current function has been destroyed.  This mostly happens
 955    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 956    is defined to return a non-zero value if either the given addr is one
 957    instruction after the stack destroying instruction up to the trailing
 958    return instruction or if we can figure out that the stack frame has
 959    already been invalidated regardless of the value of addr.  Targets
 960    which don't suffer from that problem could just let this functionality
 961    untouched. */
 962
 963 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 964 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 965 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 966
 967 /* Given a vector of command-line arguments, return a newly allocated
 968    string which, when passed to the create_inferior function, will be
 969    parsed (on Unix systems, by the shell) to yield the same vector.
 970    This function should call error() if the argument vector is not
 971    representable for this target or if this target does not support
 972    command-line arguments.
 973    ARGC is the number of elements in the vector.
 974    ARGV is an array of strings, one per argument. */
 975
 976 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 977 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 978 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 979
 980 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 981 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 982 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 983
 984 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 985 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 986 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 987
 988 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 989 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 990
 991 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 992 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 993
 994 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 995 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 996
 997 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 998
 999 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
1000 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
1001 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
1002
1003 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
1004
1005 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
1006 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
1007 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);
1008
1009 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
1010
1011 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
1012 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
1013 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);
1014
1015 /* Is a register in a group */
1016
1017 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
1018 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
1019 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
1020
1021 /* Fetch the pointer to the ith function argument. */
1022
1023 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
1024
1025 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
1026 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
1027 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
1028
1029 /* Return the appropriate register set for a core file section with
1030    name SECT_NAME and size SECT_SIZE. */
1031
1032 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
1033
1034 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
1035 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
1036 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
1037
1038 /* If the elements of C++ vtables are in-place function descriptors rather
1039    than normal function pointers (which may point to code or a descriptor),
1040    set this to one. */
1041
1042 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
1043 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
1044
1045 /* Set if the least significant bit of the delta is used instead of the least
1046    significant bit of the pfn for pointers to virtual member functions. */
1047
1048 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
1049 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
1050
1051 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1052
1053 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
1054
1055 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
1056 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
1057 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
1058
1059 /* Refresh overlay mapped state for section OSECT. */
1060
1061 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1062
1063 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1064 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1065 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1066
1067 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1068
1069
1070 /* Mechanism for co-ordinating the selection of a specific
1071    architecture.
1072
1073    GDB targets (*-tdep.c) can register an interest in a specific
1074    architecture.  Other GDB components can register a need to maintain
1075    per-architecture data.
1076
1077    The mechanisms below ensures that there is only a loose connection
1078    between the set-architecture command and the various GDB
1079    components.  Each component can independently register their need
1080    to maintain architecture specific data with gdbarch.
1081
1082    Pragmatics:
1083
1084    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1085    didn't scale.
1086
1087    The more traditional mega-struct containing architecture specific
1088    data for all the various GDB components was also considered.  Since
1089    GDB is built from a variable number of (fairly independent)
1090    components it was determined that the global aproach was not
1091    applicable. */
1092
1093
1094 /* Register a new architectural family with GDB.
1095
1096    Register support for the specified ARCHITECTURE with GDB.  When
1097    gdbarch determines that the specified architecture has been
1098    selected, the corresponding INIT function is called.
1099
1100    --
1101
1102    The INIT function takes two parameters: INFO which contains the
1103    information available to gdbarch about the (possibly new)
1104    architecture; ARCHES which is a list of the previously created
1105    ``struct gdbarch'' for this architecture.
1106
1107    The INFO parameter is, as far as possible, be pre-initialized with
1108    information obtained from INFO.ABFD or the global defaults.
1109
1110    The ARCHES parameter is a linked list (sorted most recently used)
1111    of all the previously created architures for this architecture
1112    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1113    values from the previously selected architecture for this
1114    architecture family.  The global ``current_gdbarch'' shall not be
1115    used.
1116
1117    The INIT function shall return any of: NULL - indicating that it
1118    doesn't recognize the selected architecture; an existing ``struct
1119    gdbarch'' from the ARCHES list - indicating that the new
1120    architecture is just a synonym for an earlier architecture (see
1121    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1122    - that describes the selected architecture (see gdbarch_alloc()).
1123
1124    The DUMP_TDEP function shall print out all target specific values.
1125    Care should be taken to ensure that the function works in both the
1126    multi-arch and non- multi-arch cases. */
1127
1128 struct gdbarch_list
1129 {
1130   struct gdbarch *gdbarch;
1131   struct gdbarch_list *next;
1132 };
1133
1134 struct gdbarch_info
1135 {
1136   /* Use default: NULL (ZERO). */
1137   const struct bfd_arch_info *bfd_arch_info;
1138
1139   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1140   int byte_order;
1141
1142   /* Use default: NULL (ZERO). */
1143   bfd *abfd;
1144
1145   /* Use default: NULL (ZERO). */
1146   struct gdbarch_tdep_info *tdep_info;
1147
1148   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1149   enum gdb_osabi osabi;
1150
1151   /* Use default: NULL (ZERO).  */
1152   const struct target_desc *target_desc;
1153 };
1154
1155 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1156 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1157
1158 /* DEPRECATED - use gdbarch_register() */
1159 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1160
1161 extern void gdbarch_register (enum bfd_architecture architecture,
1162                               gdbarch_init_ftype *,
1163                               gdbarch_dump_tdep_ftype *);
1164
1165
1166 /* Return a freshly allocated, NULL terminated, array of the valid
1167    architecture names.  Since architectures are registered during the
1168    _initialize phase this function only returns useful information
1169    once initialization has been completed. */
1170
1171 extern const char **gdbarch_printable_names (void);
1172
1173
1174 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1175    matches the information provided by INFO. */
1176
1177 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1178
1179
1180 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1181    basic initialization using values obtained from the INFO and TDEP
1182    parameters.  set_gdbarch_*() functions are called to complete the
1183    initialization of the object. */
1184
1185 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1186
1187
1188 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1189    It is assumed that the caller freeds the ``struct
1190    gdbarch_tdep''. */
1191
1192 extern void gdbarch_free (struct gdbarch *);
1193
1194
1195 /* Helper function.  Allocate memory from the ``struct gdbarch''
1196    obstack.  The memory is freed when the corresponding architecture
1197    is also freed.  */
1198
1199 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1200 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1201 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1202
1203
1204 /* Helper function. Force an update of the current architecture.
1205
1206    The actual architecture selected is determined by INFO, ``(gdb) set
1207    architecture'' et.al., the existing architecture and BFD's default
1208    architecture.  INFO should be initialized to zero and then selected
1209    fields should be updated.
1210
1211    Returns non-zero if the update succeeds */
1212
1213 extern int gdbarch_update_p (struct gdbarch_info info);
1214
1215
1216 /* Helper function.  Find an architecture matching info.
1217
1218    INFO should be initialized using gdbarch_info_init, relevant fields
1219    set, and then finished using gdbarch_info_fill.
1220
1221    Returns the corresponding architecture, or NULL if no matching
1222    architecture was found.  "current_gdbarch" is not updated.  */
1223
1224 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1225
1226
1227 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1228
1229    FIXME: kettenis/20031124: Of the functions that follow, only
1230    gdbarch_from_bfd is supposed to survive.  The others will
1231    dissappear since in the future GDB will (hopefully) be truly
1232    multi-arch.  However, for now we're still stuck with the concept of
1233    a single active architecture.  */
1234
1235 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1236
1237
1238 /* Register per-architecture data-pointer.
1239
1240    Reserve space for a per-architecture data-pointer.  An identifier
1241    for the reserved data-pointer is returned.  That identifer should
1242    be saved in a local static variable.
1243
1244    Memory for the per-architecture data shall be allocated using
1245    gdbarch_obstack_zalloc.  That memory will be deleted when the
1246    corresponding architecture object is deleted.
1247
1248    When a previously created architecture is re-selected, the
1249    per-architecture data-pointer for that previous architecture is
1250    restored.  INIT() is not re-called.
1251
1252    Multiple registrarants for any architecture are allowed (and
1253    strongly encouraged).  */
1254
1255 struct gdbarch_data;
1256
1257 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1258 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1259 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1260 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1261 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1262                                          struct gdbarch_data *data,
1263                                          void *pointer);
1264
1265 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1266
1267
1268
1269 /* Register per-architecture memory region.
1270
1271    Provide a memory-region swap mechanism.  Per-architecture memory
1272    region are created.  These memory regions are swapped whenever the
1273    architecture is changed.  For a new architecture, the memory region
1274    is initialized with zero (0) and the INIT function is called.
1275
1276    Memory regions are swapped / initialized in the order that they are
1277    registered.  NULL DATA and/or INIT values can be specified.
1278
1279    New code should use gdbarch_data_register_*(). */
1280
1281 typedef void (gdbarch_swap_ftype) (void);
1282 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1283 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1284
1285
1286
1287 /* Set the dynamic target-system-dependent parameters (architecture,
1288    byte-order, ...) using information found in the BFD */
1289
1290 extern void set_gdbarch_from_file (bfd *);
1291
1292
1293 /* Initialize the current architecture to the "first" one we find on
1294    our list.  */
1295
1296 extern void initialize_current_architecture (void);
1297
1298 /* gdbarch trace variable */
1299 extern int gdbarch_debug;
1300
1301 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1302
1303 #endif