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