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