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