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 #if !defined (GDB_TM_FILE) && defined (TARGET_BYTE_ORDER)
  73 #error "Non multi-arch definition of TARGET_BYTE_ORDER"
  74 #endif
  75 #if !defined (TARGET_BYTE_ORDER)
  76 #define TARGET_BYTE_ORDER (gdbarch_byte_order (current_gdbarch))
  77 #endif
  78
  79 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  80 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
  81 #if !defined (GDB_TM_FILE) && defined (TARGET_OSABI)
  82 #error "Non multi-arch definition of TARGET_OSABI"
  83 #endif
  84 #if !defined (TARGET_OSABI)
  85 #define TARGET_OSABI (gdbarch_osabi (current_gdbarch))
  86 #endif
  87
  88 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  89 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
  90
  91
  92 /* The following are initialized by the target dependent code. */
  93
  94 /* Number of bits in a char or unsigned char for the target machine.
  95    Just like CHAR_BIT in <limits.h> but describes the target machine.
  96    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
  97
  98    Number of bits in a short or unsigned short for the target machine. */
  99
 100 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
 101 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
 102 #if !defined (GDB_TM_FILE) && defined (TARGET_SHORT_BIT)
 103 #error "Non multi-arch definition of TARGET_SHORT_BIT"
 104 #endif
 105 #if !defined (TARGET_SHORT_BIT)
 106 #define TARGET_SHORT_BIT (gdbarch_short_bit (current_gdbarch))
 107 #endif
 108
 109 /* Number of bits in an int or unsigned int for the target machine. */
 110
 111 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 112 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 113 #if !defined (GDB_TM_FILE) && defined (TARGET_INT_BIT)
 114 #error "Non multi-arch definition of TARGET_INT_BIT"
 115 #endif
 116 #if !defined (TARGET_INT_BIT)
 117 #define TARGET_INT_BIT (gdbarch_int_bit (current_gdbarch))
 118 #endif
 119
 120 /* Number of bits in a long or unsigned long for the target machine. */
 121
 122 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 123 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 124 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_BIT)
 125 #error "Non multi-arch definition of TARGET_LONG_BIT"
 126 #endif
 127 #if !defined (TARGET_LONG_BIT)
 128 #define TARGET_LONG_BIT (gdbarch_long_bit (current_gdbarch))
 129 #endif
 130
 131 /* Number of bits in a long long or unsigned long long for the target
 132    machine. */
 133
 134 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 135 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 136 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_LONG_BIT)
 137 #error "Non multi-arch definition of TARGET_LONG_LONG_BIT"
 138 #endif
 139 #if !defined (TARGET_LONG_LONG_BIT)
 140 #define TARGET_LONG_LONG_BIT (gdbarch_long_long_bit (current_gdbarch))
 141 #endif
 142
 143 /* The ABI default bit-size and format for "float", "double", and "long
 144    double".  These bit/format pairs should eventually be combined into
 145    a single object.  For the moment, just initialize them as a pair.
 146    Each format describes both the big and little endian layouts (if
 147    useful). */
 148
 149 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 150 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 151 #if !defined (GDB_TM_FILE) && defined (TARGET_FLOAT_BIT)
 152 #error "Non multi-arch definition of TARGET_FLOAT_BIT"
 153 #endif
 154 #if !defined (TARGET_FLOAT_BIT)
 155 #define TARGET_FLOAT_BIT (gdbarch_float_bit (current_gdbarch))
 156 #endif
 157
 158 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 159 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 160 #if !defined (GDB_TM_FILE) && defined (TARGET_FLOAT_FORMAT)
 161 #error "Non multi-arch definition of TARGET_FLOAT_FORMAT"
 162 #endif
 163 #if !defined (TARGET_FLOAT_FORMAT)
 164 #define TARGET_FLOAT_FORMAT (gdbarch_float_format (current_gdbarch))
 165 #endif
 166
 167 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 168 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 169 #if !defined (GDB_TM_FILE) && defined (TARGET_DOUBLE_BIT)
 170 #error "Non multi-arch definition of TARGET_DOUBLE_BIT"
 171 #endif
 172 #if !defined (TARGET_DOUBLE_BIT)
 173 #define TARGET_DOUBLE_BIT (gdbarch_double_bit (current_gdbarch))
 174 #endif
 175
 176 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 177 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 178 #if !defined (GDB_TM_FILE) && defined (TARGET_DOUBLE_FORMAT)
 179 #error "Non multi-arch definition of TARGET_DOUBLE_FORMAT"
 180 #endif
 181 #if !defined (TARGET_DOUBLE_FORMAT)
 182 #define TARGET_DOUBLE_FORMAT (gdbarch_double_format (current_gdbarch))
 183 #endif
 184
 185 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 186 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 187 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_DOUBLE_BIT)
 188 #error "Non multi-arch definition of TARGET_LONG_DOUBLE_BIT"
 189 #endif
 190 #if !defined (TARGET_LONG_DOUBLE_BIT)
 191 #define TARGET_LONG_DOUBLE_BIT (gdbarch_long_double_bit (current_gdbarch))
 192 #endif
 193
 194 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 195 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 196 #if !defined (GDB_TM_FILE) && defined (TARGET_LONG_DOUBLE_FORMAT)
 197 #error "Non multi-arch definition of TARGET_LONG_DOUBLE_FORMAT"
 198 #endif
 199 #if !defined (TARGET_LONG_DOUBLE_FORMAT)
 200 #define TARGET_LONG_DOUBLE_FORMAT (gdbarch_long_double_format (current_gdbarch))
 201 #endif
 202
 203 /* For most targets, a pointer on the target and its representation as an
 204    address in GDB have the same size and "look the same".  For such a
 205    target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 206    / addr_bit will be set from it.
 207
 208    If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 209    also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 210
 211    ptr_bit is the size of a pointer on the target */
 212
 213 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 214 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 215 #if !defined (GDB_TM_FILE) && defined (TARGET_PTR_BIT)
 216 #error "Non multi-arch definition of TARGET_PTR_BIT"
 217 #endif
 218 #if !defined (TARGET_PTR_BIT)
 219 #define TARGET_PTR_BIT (gdbarch_ptr_bit (current_gdbarch))
 220 #endif
 221
 222 /* addr_bit is the size of a target address as represented in gdb */
 223
 224 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 225 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 226 #if !defined (GDB_TM_FILE) && defined (TARGET_ADDR_BIT)
 227 #error "Non multi-arch definition of TARGET_ADDR_BIT"
 228 #endif
 229 #if !defined (TARGET_ADDR_BIT)
 230 #define TARGET_ADDR_BIT (gdbarch_addr_bit (current_gdbarch))
 231 #endif
 232
 233 /* Number of bits in a BFD_VMA for the target object file format. */
 234
 235 extern int gdbarch_bfd_vma_bit (struct gdbarch *gdbarch);
 236 extern void set_gdbarch_bfd_vma_bit (struct gdbarch *gdbarch, int bfd_vma_bit);
 237 #if !defined (GDB_TM_FILE) && defined (TARGET_BFD_VMA_BIT)
 238 #error "Non multi-arch definition of TARGET_BFD_VMA_BIT"
 239 #endif
 240 #if !defined (TARGET_BFD_VMA_BIT)
 241 #define TARGET_BFD_VMA_BIT (gdbarch_bfd_vma_bit (current_gdbarch))
 242 #endif
 243
 244 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 245
 246 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 247 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 248 #if !defined (GDB_TM_FILE) && defined (TARGET_CHAR_SIGNED)
 249 #error "Non multi-arch definition of TARGET_CHAR_SIGNED"
 250 #endif
 251 #if !defined (TARGET_CHAR_SIGNED)
 252 #define TARGET_CHAR_SIGNED (gdbarch_char_signed (current_gdbarch))
 253 #endif
 254
 255 #if defined (TARGET_READ_PC)
 256 /* Legacy for systems yet to multi-arch TARGET_READ_PC */
 257 #if !defined (TARGET_READ_PC_P)
 258 #define TARGET_READ_PC_P() (1)
 259 #endif
 260 #endif
 261
 262 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 263 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC_P)
 264 #error "Non multi-arch definition of TARGET_READ_PC"
 265 #endif
 266 #if !defined (TARGET_READ_PC_P)
 267 #define TARGET_READ_PC_P() (gdbarch_read_pc_p (current_gdbarch))
 268 #endif
 269
 270 typedef CORE_ADDR (gdbarch_read_pc_ftype) (ptid_t ptid);
 271 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, ptid_t ptid);
 272 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 273 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC)
 274 #error "Non multi-arch definition of TARGET_READ_PC"
 275 #endif
 276 #if !defined (TARGET_READ_PC)
 277 #define TARGET_READ_PC(ptid) (gdbarch_read_pc (current_gdbarch, ptid))
 278 #endif
 279
 280 typedef void (gdbarch_write_pc_ftype) (CORE_ADDR val, ptid_t ptid);
 281 extern void gdbarch_write_pc (struct gdbarch *gdbarch, CORE_ADDR val, ptid_t ptid);
 282 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 283 #if !defined (GDB_TM_FILE) && defined (TARGET_WRITE_PC)
 284 #error "Non multi-arch definition of TARGET_WRITE_PC"
 285 #endif
 286 #if !defined (TARGET_WRITE_PC)
 287 #define TARGET_WRITE_PC(val, ptid) (gdbarch_write_pc (current_gdbarch, val, ptid))
 288 #endif
 289
 290 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 291    whole scheme for dealing with "frames" and "frame pointers" needs a
 292    serious shakedown. */
 293
 294 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 295 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 296 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 297 #if !defined (GDB_TM_FILE) && defined (TARGET_VIRTUAL_FRAME_POINTER)
 298 #error "Non multi-arch definition of TARGET_VIRTUAL_FRAME_POINTER"
 299 #endif
 300 #if !defined (TARGET_VIRTUAL_FRAME_POINTER)
 301 #define TARGET_VIRTUAL_FRAME_POINTER(pc, frame_regnum, frame_offset) (gdbarch_virtual_frame_pointer (current_gdbarch, pc, frame_regnum, frame_offset))
 302 #endif
 303
 304 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 305
 306 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 307 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 308 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 309
 310 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 311
 312 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 313 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 314 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 315
 316 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 317 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 318 #if !defined (GDB_TM_FILE) && defined (NUM_REGS)
 319 #error "Non multi-arch definition of NUM_REGS"
 320 #endif
 321 #if !defined (NUM_REGS)
 322 #define NUM_REGS (gdbarch_num_regs (current_gdbarch))
 323 #endif
 324
 325 /* This macro gives the number of pseudo-registers that live in the
 326    register namespace but do not get fetched or stored on the target.
 327    These pseudo-registers may be aliases for other registers,
 328    combinations of other registers, or they may be computed by GDB. */
 329
 330 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 331 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 332 #if !defined (GDB_TM_FILE) && defined (NUM_PSEUDO_REGS)
 333 #error "Non multi-arch definition of NUM_PSEUDO_REGS"
 334 #endif
 335 #if !defined (NUM_PSEUDO_REGS)
 336 #define NUM_PSEUDO_REGS (gdbarch_num_pseudo_regs (current_gdbarch))
 337 #endif
 338
 339 /* GDB's standard (or well known) register numbers.  These can map onto
 340    a real register or a pseudo (computed) register or not be defined at
 341    all (-1).
 342    SP_REGNUM will hopefully be replaced by UNWIND_SP. */
 343
 344 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 345 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 346 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 347 #error "Non multi-arch definition of SP_REGNUM"
 348 #endif
 349 #if !defined (SP_REGNUM)
 350 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 351 #endif
 352
 353 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 354 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 355 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 356 #error "Non multi-arch definition of PC_REGNUM"
 357 #endif
 358 #if !defined (PC_REGNUM)
 359 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 360 #endif
 361
 362 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 363 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 364 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 365 #error "Non multi-arch definition of PS_REGNUM"
 366 #endif
 367 #if !defined (PS_REGNUM)
 368 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 369 #endif
 370
 371 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 372 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 373 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 374 #error "Non multi-arch definition of FP0_REGNUM"
 375 #endif
 376 #if !defined (FP0_REGNUM)
 377 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 378 #endif
 379
 380 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 381
 382 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 383 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 384 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 385 #if !defined (GDB_TM_FILE) && defined (STAB_REG_TO_REGNUM)
 386 #error "Non multi-arch definition of STAB_REG_TO_REGNUM"
 387 #endif
 388 #if !defined (STAB_REG_TO_REGNUM)
 389 #define STAB_REG_TO_REGNUM(stab_regnr) (gdbarch_stab_reg_to_regnum (current_gdbarch, stab_regnr))
 390 #endif
 391
 392 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 393
 394 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 395 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 396 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 397 #if !defined (GDB_TM_FILE) && defined (ECOFF_REG_TO_REGNUM)
 398 #error "Non multi-arch definition of ECOFF_REG_TO_REGNUM"
 399 #endif
 400 #if !defined (ECOFF_REG_TO_REGNUM)
 401 #define ECOFF_REG_TO_REGNUM(ecoff_regnr) (gdbarch_ecoff_reg_to_regnum (current_gdbarch, ecoff_regnr))
 402 #endif
 403
 404 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 405
 406 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 407 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 408 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 409 #if !defined (GDB_TM_FILE) && defined (DWARF_REG_TO_REGNUM)
 410 #error "Non multi-arch definition of DWARF_REG_TO_REGNUM"
 411 #endif
 412 #if !defined (DWARF_REG_TO_REGNUM)
 413 #define DWARF_REG_TO_REGNUM(dwarf_regnr) (gdbarch_dwarf_reg_to_regnum (current_gdbarch, dwarf_regnr))
 414 #endif
 415
 416 /* Convert from an sdb register number to an internal gdb register number. */
 417
 418 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 419 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 420 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 421 #if !defined (GDB_TM_FILE) && defined (SDB_REG_TO_REGNUM)
 422 #error "Non multi-arch definition of SDB_REG_TO_REGNUM"
 423 #endif
 424 #if !defined (SDB_REG_TO_REGNUM)
 425 #define SDB_REG_TO_REGNUM(sdb_regnr) (gdbarch_sdb_reg_to_regnum (current_gdbarch, sdb_regnr))
 426 #endif
 427
 428 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 429 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 430 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 431 #if !defined (GDB_TM_FILE) && defined (DWARF2_REG_TO_REGNUM)
 432 #error "Non multi-arch definition of DWARF2_REG_TO_REGNUM"
 433 #endif
 434 #if !defined (DWARF2_REG_TO_REGNUM)
 435 #define DWARF2_REG_TO_REGNUM(dwarf2_regnr) (gdbarch_dwarf2_reg_to_regnum (current_gdbarch, dwarf2_regnr))
 436 #endif
 437
 438 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 439 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 440 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 441 #if !defined (GDB_TM_FILE) && defined (REGISTER_NAME)
 442 #error "Non multi-arch definition of REGISTER_NAME"
 443 #endif
 444 #if !defined (REGISTER_NAME)
 445 #define REGISTER_NAME(regnr) (gdbarch_register_name (current_gdbarch, regnr))
 446 #endif
 447
 448 /* Return the type of a register specified by the architecture.  Only
 449    the register cache should call this function directly; others should
 450    use "register_type". */
 451
 452 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 453
 454 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 455 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 456 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 457
 458 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 459
 460 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 461
 462 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 463 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 464 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 465
 466 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 467    DEPRECATED_FP_REGNUM. */
 468
 469 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 470 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 471 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 472 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 473 #endif
 474 #if !defined (DEPRECATED_FP_REGNUM)
 475 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 476 #endif
 477
 478 /* See gdbint.texinfo.  See infcall.c. */
 479
 480 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 481
 482 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);
 483 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);
 484 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 485
 486 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 487
 488 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 489 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 490 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 491 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 492 #endif
 493 #if !defined (DEPRECATED_REGISTER_SIZE)
 494 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 495 #endif
 496
 497 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 498 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 499 #if !defined (GDB_TM_FILE) && defined (CALL_DUMMY_LOCATION)
 500 #error "Non multi-arch definition of CALL_DUMMY_LOCATION"
 501 #endif
 502 #if !defined (CALL_DUMMY_LOCATION)
 503 #define CALL_DUMMY_LOCATION (gdbarch_call_dummy_location (current_gdbarch))
 504 #endif
 505
 506 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 507
 508 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);
 509 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);
 510 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 511
 512 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 513 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 514 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 515
 516 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 517
 518 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 519 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 520 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 521
 522 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 523
 524 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 525 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 526 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 527
 528 /* MAP a GDB RAW register number onto a simulator register number.  See
 529    also include/...-sim.h. */
 530
 531 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 532 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 533 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 534 #if !defined (GDB_TM_FILE) && defined (REGISTER_SIM_REGNO)
 535 #error "Non multi-arch definition of REGISTER_SIM_REGNO"
 536 #endif
 537 #if !defined (REGISTER_SIM_REGNO)
 538 #define REGISTER_SIM_REGNO(reg_nr) (gdbarch_register_sim_regno (current_gdbarch, reg_nr))
 539 #endif
 540
 541 #if defined (REGISTER_BYTES_OK)
 542 /* Legacy for systems yet to multi-arch REGISTER_BYTES_OK */
 543 #if !defined (REGISTER_BYTES_OK_P)
 544 #define REGISTER_BYTES_OK_P() (1)
 545 #endif
 546 #endif
 547
 548 extern int gdbarch_register_bytes_ok_p (struct gdbarch *gdbarch);
 549 #if !defined (GDB_TM_FILE) && defined (REGISTER_BYTES_OK_P)
 550 #error "Non multi-arch definition of REGISTER_BYTES_OK"
 551 #endif
 552 #if !defined (REGISTER_BYTES_OK_P)
 553 #define REGISTER_BYTES_OK_P() (gdbarch_register_bytes_ok_p (current_gdbarch))
 554 #endif
 555
 556 typedef int (gdbarch_register_bytes_ok_ftype) (long nr_bytes);
 557 extern int gdbarch_register_bytes_ok (struct gdbarch *gdbarch, long nr_bytes);
 558 extern void set_gdbarch_register_bytes_ok (struct gdbarch *gdbarch, gdbarch_register_bytes_ok_ftype *register_bytes_ok);
 559 #if !defined (GDB_TM_FILE) && defined (REGISTER_BYTES_OK)
 560 #error "Non multi-arch definition of REGISTER_BYTES_OK"
 561 #endif
 562 #if !defined (REGISTER_BYTES_OK)
 563 #define REGISTER_BYTES_OK(nr_bytes) (gdbarch_register_bytes_ok (current_gdbarch, nr_bytes))
 564 #endif
 565
 566 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 567 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 568 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 569 #if !defined (GDB_TM_FILE) && defined (CANNOT_FETCH_REGISTER)
 570 #error "Non multi-arch definition of CANNOT_FETCH_REGISTER"
 571 #endif
 572 #if !defined (CANNOT_FETCH_REGISTER)
 573 #define CANNOT_FETCH_REGISTER(regnum) (gdbarch_cannot_fetch_register (current_gdbarch, regnum))
 574 #endif
 575
 576 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 577 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 578 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 579 #if !defined (GDB_TM_FILE) && defined (CANNOT_STORE_REGISTER)
 580 #error "Non multi-arch definition of CANNOT_STORE_REGISTER"
 581 #endif
 582 #if !defined (CANNOT_STORE_REGISTER)
 583 #define CANNOT_STORE_REGISTER(regnum) (gdbarch_cannot_store_register (current_gdbarch, regnum))
 584 #endif
 585
 586 /* setjmp/longjmp support. */
 587
 588 #if defined (GET_LONGJMP_TARGET)
 589 /* Legacy for systems yet to multi-arch GET_LONGJMP_TARGET */
 590 #if !defined (GET_LONGJMP_TARGET_P)
 591 #define GET_LONGJMP_TARGET_P() (1)
 592 #endif
 593 #endif
 594
 595 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 596 #if !defined (GDB_TM_FILE) && defined (GET_LONGJMP_TARGET_P)
 597 #error "Non multi-arch definition of GET_LONGJMP_TARGET"
 598 #endif
 599 #if !defined (GET_LONGJMP_TARGET_P)
 600 #define GET_LONGJMP_TARGET_P() (gdbarch_get_longjmp_target_p (current_gdbarch))
 601 #endif
 602
 603 typedef int (gdbarch_get_longjmp_target_ftype) (CORE_ADDR *pc);
 604 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, CORE_ADDR *pc);
 605 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 606 #if !defined (GDB_TM_FILE) && defined (GET_LONGJMP_TARGET)
 607 #error "Non multi-arch definition of GET_LONGJMP_TARGET"
 608 #endif
 609 #if !defined (GET_LONGJMP_TARGET)
 610 #define GET_LONGJMP_TARGET(pc) (gdbarch_get_longjmp_target (current_gdbarch, pc))
 611 #endif
 612
 613 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 614 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 615 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 616 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 617 #endif
 618 #if !defined (BELIEVE_PCC_PROMOTION)
 619 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 620 #endif
 621
 622 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 623 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 624 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 625 #if !defined (GDB_TM_FILE) && defined (CONVERT_REGISTER_P)
 626 #error "Non multi-arch definition of CONVERT_REGISTER_P"
 627 #endif
 628 #if !defined (CONVERT_REGISTER_P)
 629 #define CONVERT_REGISTER_P(regnum, type) (gdbarch_convert_register_p (current_gdbarch, regnum, type))
 630 #endif
 631
 632 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 633 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 634 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 635 #if !defined (GDB_TM_FILE) && defined (REGISTER_TO_VALUE)
 636 #error "Non multi-arch definition of REGISTER_TO_VALUE"
 637 #endif
 638 #if !defined (REGISTER_TO_VALUE)
 639 #define REGISTER_TO_VALUE(frame, regnum, type, buf) (gdbarch_register_to_value (current_gdbarch, frame, regnum, type, buf))
 640 #endif
 641
 642 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 643 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 644 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 645 #if !defined (GDB_TM_FILE) && defined (VALUE_TO_REGISTER)
 646 #error "Non multi-arch definition of VALUE_TO_REGISTER"
 647 #endif
 648 #if !defined (VALUE_TO_REGISTER)
 649 #define VALUE_TO_REGISTER(frame, regnum, type, buf) (gdbarch_value_to_register (current_gdbarch, frame, regnum, type, buf))
 650 #endif
 651
 652 /* Construct a value representing the contents of register REGNUM in
 653    frame FRAME, interpreted as type TYPE.  The routine needs to
 654    allocate and return a struct value with all value attributes
 655    (but not the value contents) filled in. */
 656
 657 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 658 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 659 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 660
 661 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 662 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 663 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 664 #if !defined (GDB_TM_FILE) && defined (POINTER_TO_ADDRESS)
 665 #error "Non multi-arch definition of POINTER_TO_ADDRESS"
 666 #endif
 667 #if !defined (POINTER_TO_ADDRESS)
 668 #define POINTER_TO_ADDRESS(type, buf) (gdbarch_pointer_to_address (current_gdbarch, type, buf))
 669 #endif
 670
 671 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 672 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 673 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 674 #if !defined (GDB_TM_FILE) && defined (ADDRESS_TO_POINTER)
 675 #error "Non multi-arch definition of ADDRESS_TO_POINTER"
 676 #endif
 677 #if !defined (ADDRESS_TO_POINTER)
 678 #define ADDRESS_TO_POINTER(type, buf, addr) (gdbarch_address_to_pointer (current_gdbarch, type, buf, addr))
 679 #endif
 680
 681 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 682
 683 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 684 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 685 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 686
 687 /* It has been suggested that this, well actually its predecessor,
 688    should take the type/value of the function to be called and not the
 689    return type.  This is left as an exercise for the reader.
 690    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 691    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 692    (via legacy_return_value), when a small struct is involved. */
 693
 694 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 695
 696 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);
 697 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 698 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 699
 700 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 701    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 702    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 703    RETURN_VALUE. */
 704
 705 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 706 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 707 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 708 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 709 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 710 #endif
 711 #if !defined (EXTRACT_RETURN_VALUE)
 712 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 713 #endif
 714
 715 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 716 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 717 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 718 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 719 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 720 #endif
 721 #if !defined (STORE_RETURN_VALUE)
 722 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 723 #endif
 724
 725 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 726 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 727 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 728 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 729 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 730 #endif
 731 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 732 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 733 #endif
 734
 735 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 736    ABI suitable for the implementation of a robust extract
 737    struct-convention return-value address method (the sparc saves the
 738    address in the callers frame).  All the other cases so far examined,
 739    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 740    erreneous - the code was incorrectly assuming that the return-value
 741    address, stored in a register, was preserved across the entire
 742    function call.
 743    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 744    the ABIs that are still to be analyzed - perhaps this should simply
 745    be deleted.  The commented out extract_returned_value_address method
 746    is provided as a starting point for the 32-bit SPARC.  It, or
 747    something like it, along with changes to both infcmd.c and stack.c
 748    will be needed for that case to work.  NB: It is passed the callers
 749    frame since it is only after the callee has returned that this
 750    function is used.
 751   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 752
 753 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 754 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 755 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 756 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 757 #endif
 758 #endif
 759
 760 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 761 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 762 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 763 #endif
 764 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 765 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 766 #endif
 767
 768 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 769 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 770 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 771 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 772 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 773 #endif
 774 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 775 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 776 #endif
 777
 778 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 779 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 780 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 781 #if !defined (GDB_TM_FILE) && defined (SKIP_PROLOGUE)
 782 #error "Non multi-arch definition of SKIP_PROLOGUE"
 783 #endif
 784 #if !defined (SKIP_PROLOGUE)
 785 #define SKIP_PROLOGUE(ip) (gdbarch_skip_prologue (current_gdbarch, ip))
 786 #endif
 787
 788 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 789 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 790 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 791 #if !defined (GDB_TM_FILE) && defined (INNER_THAN)
 792 #error "Non multi-arch definition of INNER_THAN"
 793 #endif
 794 #if !defined (INNER_THAN)
 795 #define INNER_THAN(lhs, rhs) (gdbarch_inner_than (current_gdbarch, lhs, rhs))
 796 #endif
 797
 798 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 799 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 800 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 801 #if !defined (GDB_TM_FILE) && defined (BREAKPOINT_FROM_PC)
 802 #error "Non multi-arch definition of BREAKPOINT_FROM_PC"
 803 #endif
 804 #if !defined (BREAKPOINT_FROM_PC)
 805 #define BREAKPOINT_FROM_PC(pcptr, lenptr) (gdbarch_breakpoint_from_pc (current_gdbarch, pcptr, lenptr))
 806 #endif
 807
 808 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 809
 810 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 811 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 812 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 813
 814 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 815 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 816 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 817 #if !defined (GDB_TM_FILE) && defined (MEMORY_INSERT_BREAKPOINT)
 818 #error "Non multi-arch definition of MEMORY_INSERT_BREAKPOINT"
 819 #endif
 820 #if !defined (MEMORY_INSERT_BREAKPOINT)
 821 #define MEMORY_INSERT_BREAKPOINT(bp_tgt) (gdbarch_memory_insert_breakpoint (current_gdbarch, bp_tgt))
 822 #endif
 823
 824 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 825 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 826 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 827 #if !defined (GDB_TM_FILE) && defined (MEMORY_REMOVE_BREAKPOINT)
 828 #error "Non multi-arch definition of MEMORY_REMOVE_BREAKPOINT"
 829 #endif
 830 #if !defined (MEMORY_REMOVE_BREAKPOINT)
 831 #define MEMORY_REMOVE_BREAKPOINT(bp_tgt) (gdbarch_memory_remove_breakpoint (current_gdbarch, bp_tgt))
 832 #endif
 833
 834 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 835 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 836 #if !defined (GDB_TM_FILE) && defined (DECR_PC_AFTER_BREAK)
 837 #error "Non multi-arch definition of DECR_PC_AFTER_BREAK"
 838 #endif
 839 #if !defined (DECR_PC_AFTER_BREAK)
 840 #define DECR_PC_AFTER_BREAK (gdbarch_decr_pc_after_break (current_gdbarch))
 841 #endif
 842
 843 /* A function can be addressed by either it's "pointer" (possibly a
 844    descriptor address) or "entry point" (first executable instruction).
 845    The method "convert_from_func_ptr_addr" converting the former to the
 846    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 847    a simplified subset of that functionality - the function's address
 848    corresponds to the "function pointer" and the function's start
 849    corresponds to the "function entry point" - and hence is redundant. */
 850
 851 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 852 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 853 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 854 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 855 #endif
 856 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 857 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 858 #endif
 859
 860 /* Return the remote protocol register number associated with this
 861    register.  Normally the identity mapping. */
 862
 863 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 864 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 865 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 866
 867 /* Fetch the target specific address used to represent a load module. */
 868
 869 #if defined (FETCH_TLS_LOAD_MODULE_ADDRESS)
 870 /* Legacy for systems yet to multi-arch FETCH_TLS_LOAD_MODULE_ADDRESS */
 871 #if !defined (FETCH_TLS_LOAD_MODULE_ADDRESS_P)
 872 #define FETCH_TLS_LOAD_MODULE_ADDRESS_P() (1)
 873 #endif
 874 #endif
 875
 876 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 877 #if !defined (GDB_TM_FILE) && defined (FETCH_TLS_LOAD_MODULE_ADDRESS_P)
 878 #error "Non multi-arch definition of FETCH_TLS_LOAD_MODULE_ADDRESS"
 879 #endif
 880 #if !defined (FETCH_TLS_LOAD_MODULE_ADDRESS_P)
 881 #define FETCH_TLS_LOAD_MODULE_ADDRESS_P() (gdbarch_fetch_tls_load_module_address_p (current_gdbarch))
 882 #endif
 883
 884 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 885 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 886 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 887 #if !defined (GDB_TM_FILE) && defined (FETCH_TLS_LOAD_MODULE_ADDRESS)
 888 #error "Non multi-arch definition of FETCH_TLS_LOAD_MODULE_ADDRESS"
 889 #endif
 890 #if !defined (FETCH_TLS_LOAD_MODULE_ADDRESS)
 891 #define FETCH_TLS_LOAD_MODULE_ADDRESS(objfile) (gdbarch_fetch_tls_load_module_address (current_gdbarch, objfile))
 892 #endif
 893
 894 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 895 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 896 #if !defined (GDB_TM_FILE) && defined (FRAME_ARGS_SKIP)
 897 #error "Non multi-arch definition of FRAME_ARGS_SKIP"
 898 #endif
 899 #if !defined (FRAME_ARGS_SKIP)
 900 #define FRAME_ARGS_SKIP (gdbarch_frame_args_skip (current_gdbarch))
 901 #endif
 902
 903 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 904
 905 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 906 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 907 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 908
 909 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 910
 911 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 912 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 913 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 914
 915 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 916    frame-base.  Enable frame-base before frame-unwind. */
 917
 918 #if defined (FRAME_NUM_ARGS)
 919 /* Legacy for systems yet to multi-arch FRAME_NUM_ARGS */
 920 #if !defined (FRAME_NUM_ARGS_P)
 921 #define FRAME_NUM_ARGS_P() (1)
 922 #endif
 923 #endif
 924
 925 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 926 #if !defined (GDB_TM_FILE) && defined (FRAME_NUM_ARGS_P)
 927 #error "Non multi-arch definition of FRAME_NUM_ARGS"
 928 #endif
 929 #if !defined (FRAME_NUM_ARGS_P)
 930 #define FRAME_NUM_ARGS_P() (gdbarch_frame_num_args_p (current_gdbarch))
 931 #endif
 932
 933 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 934 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 935 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 936 #if !defined (GDB_TM_FILE) && defined (FRAME_NUM_ARGS)
 937 #error "Non multi-arch definition of FRAME_NUM_ARGS"
 938 #endif
 939 #if !defined (FRAME_NUM_ARGS)
 940 #define FRAME_NUM_ARGS(frame) (gdbarch_frame_num_args (current_gdbarch, frame))
 941 #endif
 942
 943 /* DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 944    to frame_align and the requirement that methods such as
 945    push_dummy_call and frame_red_zone_size maintain correct stack/frame
 946    alignment. */
 947
 948 #if defined (DEPRECATED_STACK_ALIGN)
 949 /* Legacy for systems yet to multi-arch DEPRECATED_STACK_ALIGN */
 950 #if !defined (DEPRECATED_STACK_ALIGN_P)
 951 #define DEPRECATED_STACK_ALIGN_P() (1)
 952 #endif
 953 #endif
 954
 955 extern int gdbarch_deprecated_stack_align_p (struct gdbarch *gdbarch);
 956 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_STACK_ALIGN_P)
 957 #error "Non multi-arch definition of DEPRECATED_STACK_ALIGN"
 958 #endif
 959 #if !defined (DEPRECATED_STACK_ALIGN_P)
 960 #define DEPRECATED_STACK_ALIGN_P() (gdbarch_deprecated_stack_align_p (current_gdbarch))
 961 #endif
 962
 963 typedef CORE_ADDR (gdbarch_deprecated_stack_align_ftype) (CORE_ADDR sp);
 964 extern CORE_ADDR gdbarch_deprecated_stack_align (struct gdbarch *gdbarch, CORE_ADDR sp);
 965 extern void set_gdbarch_deprecated_stack_align (struct gdbarch *gdbarch, gdbarch_deprecated_stack_align_ftype *deprecated_stack_align);
 966 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_STACK_ALIGN)
 967 #error "Non multi-arch definition of DEPRECATED_STACK_ALIGN"
 968 #endif
 969 #if !defined (DEPRECATED_STACK_ALIGN)
 970 #define DEPRECATED_STACK_ALIGN(sp) (gdbarch_deprecated_stack_align (current_gdbarch, sp))
 971 #endif
 972
 973 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 974
 975 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 976 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 977 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 978
 979 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 980    stabs_argument_has_addr. */
 981
 982 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 983 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 984 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 985 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 986 #endif
 987 #endif
 988
 989 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 990 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 991 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 992 #endif
 993 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 994 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 995 #endif
 996
 997 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 998 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 999 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
1000 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
1001 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
1002 #endif
1003 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
1004 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
1005 #endif
1006
1007 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
1008 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
1009 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
1010
1011 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
1012 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
1013 #if !defined (GDB_TM_FILE) && defined (FRAME_RED_ZONE_SIZE)
1014 #error "Non multi-arch definition of FRAME_RED_ZONE_SIZE"
1015 #endif
1016 #if !defined (FRAME_RED_ZONE_SIZE)
1017 #define FRAME_RED_ZONE_SIZE (gdbarch_frame_red_zone_size (current_gdbarch))
1018 #endif
1019
1020 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
1021 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
1022 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
1023
1024 /* On some machines there are bits in addresses which are not really
1025    part of the address, but are used by the kernel, the hardware, etc.
1026    for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
1027    we get a "real" address such as one would find in a symbol table.
1028    This is used only for addresses of instructions, and even then I'm
1029    not sure it's used in all contexts.  It exists to deal with there
1030    being a few stray bits in the PC which would mislead us, not as some
1031    sort of generic thing to handle alignment or segmentation (it's
1032    possible it should be in TARGET_READ_PC instead). */
1033
1034 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
1035 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
1036 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
1037 #if !defined (GDB_TM_FILE) && defined (ADDR_BITS_REMOVE)
1038 #error "Non multi-arch definition of ADDR_BITS_REMOVE"
1039 #endif
1040 #if !defined (ADDR_BITS_REMOVE)
1041 #define ADDR_BITS_REMOVE(addr) (gdbarch_addr_bits_remove (current_gdbarch, addr))
1042 #endif
1043
1044 /* It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
1045    ADDR_BITS_REMOVE. */
1046
1047 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
1048 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
1049 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
1050 #if !defined (GDB_TM_FILE) && defined (SMASH_TEXT_ADDRESS)
1051 #error "Non multi-arch definition of SMASH_TEXT_ADDRESS"
1052 #endif
1053 #if !defined (SMASH_TEXT_ADDRESS)
1054 #define SMASH_TEXT_ADDRESS(addr) (gdbarch_smash_text_address (current_gdbarch, addr))
1055 #endif
1056
1057 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
1058    indicates if the target needs software single step.  An ISA method to
1059    implement it.
1060
1061    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
1062    breakpoints using the breakpoint system instead of blatting memory directly
1063    (as with rs6000).
1064
1065    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
1066    target can single step.  If not, then implement single step using breakpoints.
1067
1068    A return value of 1 means that the software_single_step breakpoints
1069    were inserted; 0 means they were not. */
1070
1071 #if defined (SOFTWARE_SINGLE_STEP)
1072 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
1073 #if !defined (SOFTWARE_SINGLE_STEP_P)
1074 #define SOFTWARE_SINGLE_STEP_P() (1)
1075 #endif
1076 #endif
1077
1078 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
1079 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
1080 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
1081 #endif
1082 #if !defined (SOFTWARE_SINGLE_STEP_P)
1083 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
1084 #endif
1085
1086 typedef int (gdbarch_software_single_step_ftype) (struct regcache *regcache);
1087 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
1088 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
1089 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
1090 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
1091 #endif
1092 #if !defined (SOFTWARE_SINGLE_STEP)
1093 #define SOFTWARE_SINGLE_STEP(regcache) (gdbarch_software_single_step (current_gdbarch, regcache))
1094 #endif
1095
1096 /* Return non-zero if the processor is executing a delay slot and a
1097    further single-step is needed before the instruction finishes. */
1098
1099 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
1100
1101 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
1102 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
1103 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
1104
1105 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
1106    disassembler.  Perhaps objdump can handle it? */
1107
1108 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
1109 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
1110 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
1111 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
1112 #error "Non multi-arch definition of TARGET_PRINT_INSN"
1113 #endif
1114 #if !defined (TARGET_PRINT_INSN)
1115 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
1116 #endif
1117
1118 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (CORE_ADDR pc);
1119 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, CORE_ADDR pc);
1120 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
1121 #if !defined (GDB_TM_FILE) && defined (SKIP_TRAMPOLINE_CODE)
1122 #error "Non multi-arch definition of SKIP_TRAMPOLINE_CODE"
1123 #endif
1124 #if !defined (SKIP_TRAMPOLINE_CODE)
1125 #define SKIP_TRAMPOLINE_CODE(pc) (gdbarch_skip_trampoline_code (current_gdbarch, pc))
1126 #endif
1127
1128 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
1129    evaluates non-zero, this is the address where the debugger will place
1130    a step-resume breakpoint to get us past the dynamic linker. */
1131
1132 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
1133 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
1134 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
1135
1136 /* Some systems also have trampoline code for returning from shared libs. */
1137
1138 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
1139 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
1140 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
1141 #if !defined (GDB_TM_FILE) && defined (IN_SOLIB_RETURN_TRAMPOLINE)
1142 #error "Non multi-arch definition of IN_SOLIB_RETURN_TRAMPOLINE"
1143 #endif
1144 #if !defined (IN_SOLIB_RETURN_TRAMPOLINE)
1145 #define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) (gdbarch_in_solib_return_trampoline (current_gdbarch, pc, name))
1146 #endif
1147
1148 /* A target might have problems with watchpoints as soon as the stack
1149    frame of the current function has been destroyed.  This mostly happens
1150    as the first action in a funtion's epilogue.  in_function_epilogue_p()
1151    is defined to return a non-zero value if either the given addr is one
1152    instruction after the stack destroying instruction up to the trailing
1153    return instruction or if we can figure out that the stack frame has
1154    already been invalidated regardless of the value of addr.  Targets
1155    which don't suffer from that problem could just let this functionality
1156    untouched. */
1157
1158 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
1159 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
1160 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
1161
1162 /* Given a vector of command-line arguments, return a newly allocated
1163    string which, when passed to the create_inferior function, will be
1164    parsed (on Unix systems, by the shell) to yield the same vector.
1165    This function should call error() if the argument vector is not
1166    representable for this target or if this target does not support
1167    command-line arguments.
1168    ARGC is the number of elements in the vector.
1169    ARGV is an array of strings, one per argument. */
1170
1171 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
1172 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
1173 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
1174
1175 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
1176 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
1177 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
1178 #if !defined (GDB_TM_FILE) && defined (ELF_MAKE_MSYMBOL_SPECIAL)
1179 #error "Non multi-arch definition of ELF_MAKE_MSYMBOL_SPECIAL"
1180 #endif
1181 #if !defined (ELF_MAKE_MSYMBOL_SPECIAL)
1182 #define ELF_MAKE_MSYMBOL_SPECIAL(sym, msym) (gdbarch_elf_make_msymbol_special (current_gdbarch, sym, msym))
1183 #endif
1184
1185 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
1186 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
1187 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
1188 #if !defined (GDB_TM_FILE) && defined (COFF_MAKE_MSYMBOL_SPECIAL)
1189 #error "Non multi-arch definition of COFF_MAKE_MSYMBOL_SPECIAL"
1190 #endif
1191 #if !defined (COFF_MAKE_MSYMBOL_SPECIAL)
1192 #define COFF_MAKE_MSYMBOL_SPECIAL(val, msym) (gdbarch_coff_make_msymbol_special (current_gdbarch, val, msym))
1193 #endif
1194
1195 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
1196 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
1197 #if !defined (GDB_TM_FILE) && defined (NAME_OF_MALLOC)
1198 #error "Non multi-arch definition of NAME_OF_MALLOC"
1199 #endif
1200 #if !defined (NAME_OF_MALLOC)
1201 #define NAME_OF_MALLOC (gdbarch_name_of_malloc (current_gdbarch))
1202 #endif
1203
1204 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
1205 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
1206 #if !defined (GDB_TM_FILE) && defined (CANNOT_STEP_BREAKPOINT)
1207 #error "Non multi-arch definition of CANNOT_STEP_BREAKPOINT"
1208 #endif
1209 #if !defined (CANNOT_STEP_BREAKPOINT)
1210 #define CANNOT_STEP_BREAKPOINT (gdbarch_cannot_step_breakpoint (current_gdbarch))
1211 #endif
1212
1213 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
1214 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
1215 #if !defined (GDB_TM_FILE) && defined (HAVE_NONSTEPPABLE_WATCHPOINT)
1216 #error "Non multi-arch definition of HAVE_NONSTEPPABLE_WATCHPOINT"
1217 #endif
1218 #if !defined (HAVE_NONSTEPPABLE_WATCHPOINT)
1219 #define HAVE_NONSTEPPABLE_WATCHPOINT (gdbarch_have_nonsteppable_watchpoint (current_gdbarch))
1220 #endif
1221
1222 #if defined (ADDRESS_CLASS_TYPE_FLAGS)
1223 /* Legacy for systems yet to multi-arch ADDRESS_CLASS_TYPE_FLAGS */
1224 #if !defined (ADDRESS_CLASS_TYPE_FLAGS_P)
1225 #define ADDRESS_CLASS_TYPE_FLAGS_P() (1)
1226 #endif
1227 #endif
1228
1229 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
1230 #if !defined (GDB_TM_FILE) && defined (ADDRESS_CLASS_TYPE_FLAGS_P)
1231 #error "Non multi-arch definition of ADDRESS_CLASS_TYPE_FLAGS"
1232 #endif
1233 #if !defined (ADDRESS_CLASS_TYPE_FLAGS_P)
1234 #define ADDRESS_CLASS_TYPE_FLAGS_P() (gdbarch_address_class_type_flags_p (current_gdbarch))
1235 #endif
1236
1237 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
1238 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
1239 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
1240 #if !defined (GDB_TM_FILE) && defined (ADDRESS_CLASS_TYPE_FLAGS)
1241 #error "Non multi-arch definition of ADDRESS_CLASS_TYPE_FLAGS"
1242 #endif
1243 #if !defined (ADDRESS_CLASS_TYPE_FLAGS)
1244 #define ADDRESS_CLASS_TYPE_FLAGS(byte_size, dwarf2_addr_class) (gdbarch_address_class_type_flags (current_gdbarch, byte_size, dwarf2_addr_class))
1245 #endif
1246
1247 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
1248
1249 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
1250 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
1251 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);
1252
1253 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
1254
1255 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
1256 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
1257 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);
1258
1259 /* Is a register in a group */
1260
1261 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
1262 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
1263 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
1264
1265 /* Fetch the pointer to the ith function argument. */
1266
1267 #if defined (FETCH_POINTER_ARGUMENT)
1268 /* Legacy for systems yet to multi-arch FETCH_POINTER_ARGUMENT */
1269 #if !defined (FETCH_POINTER_ARGUMENT_P)
1270 #define FETCH_POINTER_ARGUMENT_P() (1)
1271 #endif
1272 #endif
1273
1274 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
1275 #if !defined (GDB_TM_FILE) && defined (FETCH_POINTER_ARGUMENT_P)
1276 #error "Non multi-arch definition of FETCH_POINTER_ARGUMENT"
1277 #endif
1278 #if !defined (FETCH_POINTER_ARGUMENT_P)
1279 #define FETCH_POINTER_ARGUMENT_P() (gdbarch_fetch_pointer_argument_p (current_gdbarch))
1280 #endif
1281
1282 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
1283 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
1284 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
1285 #if !defined (GDB_TM_FILE) && defined (FETCH_POINTER_ARGUMENT)
1286 #error "Non multi-arch definition of FETCH_POINTER_ARGUMENT"
1287 #endif
1288 #if !defined (FETCH_POINTER_ARGUMENT)
1289 #define FETCH_POINTER_ARGUMENT(frame, argi, type) (gdbarch_fetch_pointer_argument (current_gdbarch, frame, argi, type))
1290 #endif
1291
1292 /* Return the appropriate register set for a core file section with
1293    name SECT_NAME and size SECT_SIZE. */
1294
1295 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
1296
1297 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
1298 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
1299 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
1300
1301 /* If the elements of C++ vtables are in-place function descriptors rather
1302    than normal function pointers (which may point to code or a descriptor),
1303    set this to one. */
1304
1305 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
1306 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
1307
1308 /* Set if the least significant bit of the delta is used instead of the least
1309    significant bit of the pfn for pointers to virtual member functions. */
1310
1311 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
1312 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
1313
1314 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
1315
1316 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
1317
1318 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
1319 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
1320 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
1321
1322 /* Refresh overlay mapped state for section OSECT. */
1323
1324 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
1325
1326 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
1327 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
1328 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
1329
1330 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1331
1332
1333 /* Mechanism for co-ordinating the selection of a specific
1334    architecture.
1335
1336    GDB targets (*-tdep.c) can register an interest in a specific
1337    architecture.  Other GDB components can register a need to maintain
1338    per-architecture data.
1339
1340    The mechanisms below ensures that there is only a loose connection
1341    between the set-architecture command and the various GDB
1342    components.  Each component can independently register their need
1343    to maintain architecture specific data with gdbarch.
1344
1345    Pragmatics:
1346
1347    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1348    didn't scale.
1349
1350    The more traditional mega-struct containing architecture specific
1351    data for all the various GDB components was also considered.  Since
1352    GDB is built from a variable number of (fairly independent)
1353    components it was determined that the global aproach was not
1354    applicable. */
1355
1356
1357 /* Register a new architectural family with GDB.
1358
1359    Register support for the specified ARCHITECTURE with GDB.  When
1360    gdbarch determines that the specified architecture has been
1361    selected, the corresponding INIT function is called.
1362
1363    --
1364
1365    The INIT function takes two parameters: INFO which contains the
1366    information available to gdbarch about the (possibly new)
1367    architecture; ARCHES which is a list of the previously created
1368    ``struct gdbarch'' for this architecture.
1369
1370    The INFO parameter is, as far as possible, be pre-initialized with
1371    information obtained from INFO.ABFD or the global defaults.
1372
1373    The ARCHES parameter is a linked list (sorted most recently used)
1374    of all the previously created architures for this architecture
1375    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1376    values from the previously selected architecture for this
1377    architecture family.  The global ``current_gdbarch'' shall not be
1378    used.
1379
1380    The INIT function shall return any of: NULL - indicating that it
1381    doesn't recognize the selected architecture; an existing ``struct
1382    gdbarch'' from the ARCHES list - indicating that the new
1383    architecture is just a synonym for an earlier architecture (see
1384    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
1385    - that describes the selected architecture (see gdbarch_alloc()).
1386
1387    The DUMP_TDEP function shall print out all target specific values.
1388    Care should be taken to ensure that the function works in both the
1389    multi-arch and non- multi-arch cases. */
1390
1391 struct gdbarch_list
1392 {
1393   struct gdbarch *gdbarch;
1394   struct gdbarch_list *next;
1395 };
1396
1397 struct gdbarch_info
1398 {
1399   /* Use default: NULL (ZERO). */
1400   const struct bfd_arch_info *bfd_arch_info;
1401
1402   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1403   int byte_order;
1404
1405   /* Use default: NULL (ZERO). */
1406   bfd *abfd;
1407
1408   /* Use default: NULL (ZERO). */
1409   struct gdbarch_tdep_info *tdep_info;
1410
1411   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1412   enum gdb_osabi osabi;
1413
1414   /* Use default: NULL (ZERO).  */
1415   const struct target_desc *target_desc;
1416 };
1417
1418 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1419 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1420
1421 /* DEPRECATED - use gdbarch_register() */
1422 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1423
1424 extern void gdbarch_register (enum bfd_architecture architecture,
1425                               gdbarch_init_ftype *,
1426                               gdbarch_dump_tdep_ftype *);
1427
1428
1429 /* Return a freshly allocated, NULL terminated, array of the valid
1430    architecture names.  Since architectures are registered during the
1431    _initialize phase this function only returns useful information
1432    once initialization has been completed. */
1433
1434 extern const char **gdbarch_printable_names (void);
1435
1436
1437 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1438    matches the information provided by INFO. */
1439
1440 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1441
1442
1443 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1444    basic initialization using values obtained from the INFO and TDEP
1445    parameters.  set_gdbarch_*() functions are called to complete the
1446    initialization of the object. */
1447
1448 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1449
1450
1451 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1452    It is assumed that the caller freeds the ``struct
1453    gdbarch_tdep''. */
1454
1455 extern void gdbarch_free (struct gdbarch *);
1456
1457
1458 /* Helper function.  Allocate memory from the ``struct gdbarch''
1459    obstack.  The memory is freed when the corresponding architecture
1460    is also freed.  */
1461
1462 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1463 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1464 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1465
1466
1467 /* Helper function. Force an update of the current architecture.
1468
1469    The actual architecture selected is determined by INFO, ``(gdb) set
1470    architecture'' et.al., the existing architecture and BFD's default
1471    architecture.  INFO should be initialized to zero and then selected
1472    fields should be updated.
1473
1474    Returns non-zero if the update succeeds */
1475
1476 extern int gdbarch_update_p (struct gdbarch_info info);
1477
1478
1479 /* Helper function.  Find an architecture matching info.
1480
1481    INFO should be initialized using gdbarch_info_init, relevant fields
1482    set, and then finished using gdbarch_info_fill.
1483
1484    Returns the corresponding architecture, or NULL if no matching
1485    architecture was found.  "current_gdbarch" is not updated.  */
1486
1487 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1488
1489
1490 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1491
1492    FIXME: kettenis/20031124: Of the functions that follow, only
1493    gdbarch_from_bfd is supposed to survive.  The others will
1494    dissappear since in the future GDB will (hopefully) be truly
1495    multi-arch.  However, for now we're still stuck with the concept of
1496    a single active architecture.  */
1497
1498 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1499
1500
1501 /* Register per-architecture data-pointer.
1502
1503    Reserve space for a per-architecture data-pointer.  An identifier
1504    for the reserved data-pointer is returned.  That identifer should
1505    be saved in a local static variable.
1506
1507    Memory for the per-architecture data shall be allocated using
1508    gdbarch_obstack_zalloc.  That memory will be deleted when the
1509    corresponding architecture object is deleted.
1510
1511    When a previously created architecture is re-selected, the
1512    per-architecture data-pointer for that previous architecture is
1513    restored.  INIT() is not re-called.
1514
1515    Multiple registrarants for any architecture are allowed (and
1516    strongly encouraged).  */
1517
1518 struct gdbarch_data;
1519
1520 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1521 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1522 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1523 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1524 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1525                                          struct gdbarch_data *data,
1526                                          void *pointer);
1527
1528 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1529
1530
1531
1532 /* Register per-architecture memory region.
1533
1534    Provide a memory-region swap mechanism.  Per-architecture memory
1535    region are created.  These memory regions are swapped whenever the
1536    architecture is changed.  For a new architecture, the memory region
1537    is initialized with zero (0) and the INIT function is called.
1538
1539    Memory regions are swapped / initialized in the order that they are
1540    registered.  NULL DATA and/or INIT values can be specified.
1541
1542    New code should use gdbarch_data_register_*(). */
1543
1544 typedef void (gdbarch_swap_ftype) (void);
1545 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1546 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1547
1548
1549
1550 /* Set the dynamic target-system-dependent parameters (architecture,
1551    byte-order, ...) using information found in the BFD */
1552
1553 extern void set_gdbarch_from_file (bfd *);
1554
1555
1556 /* Initialize the current architecture to the "first" one we find on
1557    our list.  */
1558
1559 extern void initialize_current_architecture (void);
1560
1561 /* gdbarch trace variable */
1562 extern int gdbarch_debug;
1563
1564 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1565
1566 #endif