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, 2007
   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 3 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, see <http://www.gnu.org/licenses/>.  */
  22
  23 /* This file was created with the aid of ``gdbarch.sh''.
  24
  25    The Bourne shell script ``gdbarch.sh'' creates the files
  26    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  27    against the existing ``gdbarch.[hc]''.  Any differences found
  28    being reported.
  29
  30    If editing this file, please also run gdbarch.sh and merge any
  31    changes into that script. Conversely, when making sweeping changes
  32    to this file, modifying gdbarch.sh and using its output may prove
  33    easier. */
  34
  35 #ifndef GDBARCH_H
  36 #define GDBARCH_H
  37
  38 struct floatformat;
  39 struct ui_file;
  40 struct frame_info;
  41 struct value;
  42 struct objfile;
  43 struct obj_section;
  44 struct minimal_symbol;
  45 struct regcache;
  46 struct reggroup;
  47 struct regset;
  48 struct disassemble_info;
  49 struct target_ops;
  50 struct obstack;
  51 struct bp_target_info;
  52 struct target_desc;
  53 struct displaced_step_closure;
  54 struct core_regset_section;
  55 struct syscall;
  56
  57 /* The architecture associated with the connection to the target.
  58
  59    The architecture vector provides some information that is really
  60    a property of the target: The layout of certain packets, for instance;
  61    or the solib_ops vector.  Etc.  To differentiate architecture accesses
  62    to per-target properties from per-thread/per-frame/per-objfile properties,
  63    accesses to per-target properties should be made through target_gdbarch.
  64
  65    Eventually, when support for multiple targets is implemented in
  66    GDB, this global should be made target-specific.  */
  67 extern struct gdbarch *target_gdbarch;
  68
  69
  70 /* The following are pre-initialized by GDBARCH. */
  71
  72 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  73 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
  74
  75 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  76 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
  77
  78 extern int gdbarch_byte_order_for_code (struct gdbarch *gdbarch);
  79 /* set_gdbarch_byte_order_for_code() - not applicable - pre-initialized. */
  80
  81 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  82 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
  83
  84 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  85 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
  86
  87
  88 /* The following are initialized by the target dependent code. */
  89
  90 /* The bit byte-order has to do just with numbering of bits in debugging symbols
  91    and such.  Conceptually, it's quite separate from byte/word byte order. */
  92
  93 extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
  94 extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
  95
  96 /* Number of bits in a char or unsigned char for the target machine.
  97    Just like CHAR_BIT in <limits.h> but describes the target machine.
  98    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
  99
 100    Number of bits in a short or unsigned short for the target machine. */
 101
 102 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
 103 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
 104
 105 /* Number of bits in an int or unsigned int for the target machine. */
 106
 107 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
 108 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
 109
 110 /* Number of bits in a long or unsigned long for the target machine. */
 111
 112 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
 113 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
 114
 115 /* Number of bits in a long long or unsigned long long for the target
 116    machine. */
 117
 118 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
 119 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 120
 121 /* The ABI default bit-size and format for "float", "double", and "long
 122    double".  These bit/format pairs should eventually be combined into
 123    a single object.  For the moment, just initialize them as a pair.
 124    Each format describes both the big and little endian layouts (if
 125    useful). */
 126
 127 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 128 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 129
 130 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 131 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 132
 133 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 134 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 135
 136 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 137 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 138
 139 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 140 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 141
 142 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 143 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 144
 145 /* For most targets, a pointer on the target and its representation as an
 146    address in GDB have the same size and "look the same".  For such a
 147    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 148    / addr_bit will be set from it.
 149
 150    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 151    also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
 152    as well.
 153
 154    ptr_bit is the size of a pointer on the target */
 155
 156 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 157 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 158
 159 /* addr_bit is the size of a target address as represented in gdb */
 160
 161 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 162 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 163
 164 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 165
 166 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 167 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 168
 169 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 170
 171 typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache);
 172 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache);
 173 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 174
 175 extern int gdbarch_write_pc_p (struct gdbarch *gdbarch);
 176
 177 typedef void (gdbarch_write_pc_ftype) (struct regcache *regcache, CORE_ADDR val);
 178 extern void gdbarch_write_pc (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR val);
 179 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 180
 181 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 182    whole scheme for dealing with "frames" and "frame pointers" needs a
 183    serious shakedown. */
 184
 185 typedef void (gdbarch_virtual_frame_pointer_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 186 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 187 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 188
 189 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 190
 191 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 192 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 193 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 194
 195 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 196
 197 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 198 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 199 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 200
 201 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 202 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 203
 204 /* This macro gives the number of pseudo-registers that live in the
 205    register namespace but do not get fetched or stored on the target.
 206    These pseudo-registers may be aliases for other registers,
 207    combinations of other registers, or they may be computed by GDB. */
 208
 209 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 210 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 211
 212 /* GDB's standard (or well known) register numbers.  These can map onto
 213    a real register or a pseudo (computed) register or not be defined at
 214    all (-1).
 215    gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. */
 216
 217 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 218 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 219
 220 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 221 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 222
 223 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 224 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 225
 226 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 227 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 228
 229 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 230
 231 typedef int (gdbarch_stab_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int stab_regnr);
 232 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 233 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 234
 235 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 236
 237 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int ecoff_regnr);
 238 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 239 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 240
 241 /* Convert from an sdb register number to an internal gdb register number. */
 242
 243 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int sdb_regnr);
 244 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 245 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 246
 247 /* Provide a default mapping from a DWARF2 register number to a gdb REGNUM. */
 248
 249 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (struct gdbarch *gdbarch, int dwarf2_regnr);
 250 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 251 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 252
 253 typedef const char * (gdbarch_register_name_ftype) (struct gdbarch *gdbarch, int regnr);
 254 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 255 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 256
 257 /* Return the type of a register specified by the architecture.  Only
 258    the register cache should call this function directly; others should
 259    use "register_type". */
 260
 261 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 262
 263 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 264 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 265 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 266
 267 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 268
 269 extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch);
 270
 271 typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame);
 272 extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame);
 273 extern void set_gdbarch_dummy_id (struct gdbarch *gdbarch, gdbarch_dummy_id_ftype *dummy_id);
 274
 275 /* Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
 276    deprecated_fp_regnum. */
 277
 278 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 279 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 280
 281 /* See gdbint.texinfo.  See infcall.c. */
 282
 283 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 284
 285 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);
 286 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);
 287 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 288
 289 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 290 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 291
 292 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 293
 294 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
 295 extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache);
 296 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 297
 298 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 299 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 300 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 301
 302 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 303
 304 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 305 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 306 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 307
 308 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 309
 310 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 311 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 312 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 313
 314 /* MAP a GDB RAW register number onto a simulator register number.  See
 315    also include/...-sim.h. */
 316
 317 typedef int (gdbarch_register_sim_regno_ftype) (struct gdbarch *gdbarch, int reg_nr);
 318 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 319 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 320
 321 typedef int (gdbarch_cannot_fetch_register_ftype) (struct gdbarch *gdbarch, int regnum);
 322 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 323 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 324
 325 typedef int (gdbarch_cannot_store_register_ftype) (struct gdbarch *gdbarch, int regnum);
 326 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 327 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 328
 329 /* setjmp/longjmp support. */
 330
 331 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 332
 333 typedef int (gdbarch_get_longjmp_target_ftype) (struct frame_info *frame, CORE_ADDR *pc);
 334 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR *pc);
 335 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 336
 337 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 338 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 339
 340 typedef int (gdbarch_convert_register_p_ftype) (struct gdbarch *gdbarch, int regnum, struct type *type);
 341 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 342 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 343
 344 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 345 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 346 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 347
 348 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 349 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 350 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 351
 352 /* Construct a value representing the contents of register REGNUM in
 353    frame FRAME, interpreted as type TYPE.  The routine needs to
 354    allocate and return a struct value with all value attributes
 355    (but not the value contents) filled in. */
 356
 357 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 358 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 359 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 360
 361 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 362 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 363 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 364
 365 typedef void (gdbarch_address_to_pointer_ftype) (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 366 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 367 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 368
 369 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 370
 371 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 372 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 373 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 374
 375 /* Return the return-value convention that will be used by FUNCTYPE
 376    to return a value of type VALTYPE.  FUNCTYPE may be NULL in which
 377    case the return convention is computed based only on VALTYPE.
 378
 379    If READBUF is not NULL, extract the return value and save it in this buffer.
 380
 381    If WRITEBUF is not NULL, it contains a return value which will be
 382    stored into the appropriate register.  This can be used when we want
 383    to force the value returned by a function (see the "return" command
 384    for instance). */
 385
 386 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 387
 388 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 389 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 390 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 391
 392 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 393 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 394 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 395
 396 extern int gdbarch_skip_main_prologue_p (struct gdbarch *gdbarch);
 397
 398 typedef CORE_ADDR (gdbarch_skip_main_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
 399 extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 400 extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
 401
 402 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 403 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 404 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 405
 406 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 407 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 408 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 409
 410 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 411
 412 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 413 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 414 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 415
 416 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 417 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 418 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 419
 420 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 421 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 422 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 423
 424 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 425 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 426
 427 /* A function can be addressed by either it's "pointer" (possibly a
 428    descriptor address) or "entry point" (first executable instruction).
 429    The method "convert_from_func_ptr_addr" converting the former to the
 430    latter.  gdbarch_deprecated_function_start_offset is being used to implement
 431    a simplified subset of that functionality - the function's address
 432    corresponds to the "function pointer" and the function's start
 433    corresponds to the "function entry point" - and hence is redundant. */
 434
 435 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 436 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 437
 438 /* Return the remote protocol register number associated with this
 439    register.  Normally the identity mapping. */
 440
 441 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 442 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 443 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 444
 445 /* Fetch the target specific address used to represent a load module. */
 446
 447 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 448
 449 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 450 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 451 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 452
 453 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 454 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 455
 456 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 457
 458 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 459 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 460 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 461
 462 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 463
 464 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 465 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 466 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 467
 468 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 469    frame-base.  Enable frame-base before frame-unwind. */
 470
 471 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 472
 473 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 474 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 475 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 476
 477 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 478
 479 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 480 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 481 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 482
 483 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 484 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 485 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 486
 487 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 488 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 489
 490 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 491 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 492 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 493
 494 /* On some machines there are bits in addresses which are not really
 495    part of the address, but are used by the kernel, the hardware, etc.
 496    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 497    we get a "real" address such as one would find in a symbol table.
 498    This is used only for addresses of instructions, and even then I'm
 499    not sure it's used in all contexts.  It exists to deal with there
 500    being a few stray bits in the PC which would mislead us, not as some
 501    sort of generic thing to handle alignment or segmentation (it's
 502    possible it should be in TARGET_READ_PC instead). */
 503
 504 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 505 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 506 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 507
 508 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 509    gdbarch_addr_bits_remove. */
 510
 511 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 512 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 513 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 514
 515 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 516    indicates if the target needs software single step.  An ISA method to
 517    implement it.
 518
 519    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 520    breakpoints using the breakpoint system instead of blatting memory directly
 521    (as with rs6000).
 522
 523    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 524    target can single step.  If not, then implement single step using breakpoints.
 525
 526    A return value of 1 means that the software_single_step breakpoints
 527    were inserted; 0 means they were not. */
 528
 529 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 530
 531 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 532 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 533 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 534
 535 /* Return non-zero if the processor is executing a delay slot and a
 536    further single-step is needed before the instruction finishes. */
 537
 538 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 539
 540 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 541 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 542 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 543
 544 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 545    disassembler.  Perhaps objdump can handle it? */
 546
 547 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 548 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 549 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 550
 551 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
 552 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
 553 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 554
 555 /* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
 556    evaluates non-zero, this is the address where the debugger will place
 557    a step-resume breakpoint to get us past the dynamic linker. */
 558
 559 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 560 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 561 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 562
 563 /* Some systems also have trampoline code for returning from shared libs. */
 564
 565 typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 566 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 567 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 568
 569 /* A target might have problems with watchpoints as soon as the stack
 570    frame of the current function has been destroyed.  This mostly happens
 571    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 572    is defined to return a non-zero value if either the given addr is one
 573    instruction after the stack destroying instruction up to the trailing
 574    return instruction or if we can figure out that the stack frame has
 575    already been invalidated regardless of the value of addr.  Targets
 576    which don't suffer from that problem could just let this functionality
 577    untouched. */
 578
 579 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 580 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 581 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 582
 583 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 584 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 585 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 586
 587 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 588 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 589 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 590
 591 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 592 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 593
 594 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 595 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 596
 597 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 598
 599 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 600 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 601 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 602
 603 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 604
 605 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 606 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 607 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);
 608
 609 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 610
 611 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 612 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 613 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);
 614
 615 /* Is a register in a group */
 616
 617 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 618 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 619 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 620
 621 /* Fetch the pointer to the ith function argument. */
 622
 623 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 624
 625 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 626 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 627 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 628
 629 /* Return the appropriate register set for a core file section with
 630    name SECT_NAME and size SECT_SIZE. */
 631
 632 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 633
 634 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 635 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 636 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 637
 638 /* When creating core dumps, some systems encode the PID in addition
 639    to the LWP id in core file register section names.  In those cases, the
 640    "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID].  This setting
 641    is set to true for such architectures; false if "XXX" represents an LWP
 642    or thread id with no special encoding. */
 643
 644 extern int gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch);
 645 extern void set_gdbarch_core_reg_section_encodes_pid (struct gdbarch *gdbarch, int core_reg_section_encodes_pid);
 646
 647 /* Supported register notes in a core file. */
 648
 649 extern struct core_regset_section * gdbarch_core_regset_sections (struct gdbarch *gdbarch);
 650 extern void set_gdbarch_core_regset_sections (struct gdbarch *gdbarch, struct core_regset_section * core_regset_sections);
 651
 652 /* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
 653    core file into buffer READBUF with length LEN. */
 654
 655 extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
 656
 657 typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 658 extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
 659 extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
 660
 661 /* How the core_stratum layer converts a PTID from a core file to a
 662    string. */
 663
 664 extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
 665
 666 typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 667 extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
 668 extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
 669
 670 /* BFD target to use when generating a core file. */
 671
 672 extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
 673
 674 extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
 675 extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
 676
 677 /* If the elements of C++ vtables are in-place function descriptors rather
 678    than normal function pointers (which may point to code or a descriptor),
 679    set this to one. */
 680
 681 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 682 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 683
 684 /* Set if the least significant bit of the delta is used instead of the least
 685    significant bit of the pfn for pointers to virtual member functions. */
 686
 687 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 688 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 689
 690 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 691
 692 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 693
 694 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 695 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 696 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 697
 698 /* The maximum length of an instruction on this architecture. */
 699
 700 extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
 701
 702 extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
 703 extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
 704
 705 /* Copy the instruction at FROM to TO, and make any adjustments
 706    necessary to single-step it at that address.
 707
 708    REGS holds the state the thread's registers will have before
 709    executing the copied instruction; the PC in REGS will refer to FROM,
 710    not the copy at TO.  The caller should update it to point at TO later.
 711
 712    Return a pointer to data of the architecture's choice to be passed
 713    to gdbarch_displaced_step_fixup.  Or, return NULL to indicate that
 714    the instruction's effects have been completely simulated, with the
 715    resulting state written back to REGS.
 716
 717    For a general explanation of displaced stepping and how GDB uses it,
 718    see the comments in infrun.c.
 719
 720    The TO area is only guaranteed to have space for
 721    gdbarch_max_insn_length (arch) bytes, so this function must not
 722    write more bytes than that to that area.
 723
 724    If you do not provide this function, GDB assumes that the
 725    architecture does not support displaced stepping.
 726
 727    If your architecture doesn't need to adjust instructions before
 728    single-stepping them, consider using simple_displaced_step_copy_insn
 729    here. */
 730
 731 extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
 732
 733 typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 734 extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 735 extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
 736
 737 /* Fix up the state resulting from successfully single-stepping a
 738    displaced instruction, to give the result we would have gotten from
 739    stepping the instruction in its original location.
 740
 741    REGS is the register state resulting from single-stepping the
 742    displaced instruction.
 743
 744    CLOSURE is the result from the matching call to
 745    gdbarch_displaced_step_copy_insn.
 746
 747    If you provide gdbarch_displaced_step_copy_insn.but not this
 748    function, then GDB assumes that no fixup is needed after
 749    single-stepping the instruction.
 750
 751    For a general explanation of displaced stepping and how GDB uses it,
 752    see the comments in infrun.c. */
 753
 754 extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
 755
 756 typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 757 extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
 758 extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
 759
 760 /* Free a closure returned by gdbarch_displaced_step_copy_insn.
 761
 762    If you provide gdbarch_displaced_step_copy_insn, you must provide
 763    this function as well.
 764
 765    If your architecture uses closures that don't need to be freed, then
 766    you can use simple_displaced_step_free_closure here.
 767
 768    For a general explanation of displaced stepping and how GDB uses it,
 769    see the comments in infrun.c. */
 770
 771 typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 772 extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
 773 extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
 774
 775 /* Return the address of an appropriate place to put displaced
 776    instructions while we step over them.  There need only be one such
 777    place, since we're only stepping one thread over a breakpoint at a
 778    time.
 779
 780    For a general explanation of displaced stepping and how GDB uses it,
 781    see the comments in infrun.c. */
 782
 783 typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
 784 extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
 785 extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
 786
 787 /* Refresh overlay mapped state for section OSECT. */
 788
 789 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 790
 791 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 792 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 793 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 794
 795 extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
 796
 797 typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 798 extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
 799 extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
 800
 801 /* Handle special encoding of static variables in stabs debug info. */
 802
 803 extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
 804
 805 typedef char * (gdbarch_static_transform_name_ftype) (char *name);
 806 extern char * gdbarch_static_transform_name (struct gdbarch *gdbarch, char *name);
 807 extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
 808
 809 /* Set if the address in N_SO or N_FUN stabs may be zero. */
 810
 811 extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
 812 extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
 813
 814 /* Parse the instruction at ADDR storing in the record execution log
 815    the registers REGCACHE and memory ranges that will be affected when
 816    the instruction executes, along with their current values.
 817    Return -1 if something goes wrong, 0 otherwise. */
 818
 819 extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
 820
 821 typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 822 extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
 823 extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
 824
 825 /* Save process state after a signal.
 826    Return -1 if something goes wrong, 0 otherwise. */
 827
 828 extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
 829
 830 typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 831 extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum target_signal signal);
 832 extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
 833
 834 /* Signal translation: translate inferior's signal (host's) number into
 835    GDB's representation. */
 836
 837 typedef enum target_signal (gdbarch_target_signal_from_host_ftype) (struct gdbarch *gdbarch, int signo);
 838 extern enum target_signal gdbarch_target_signal_from_host (struct gdbarch *gdbarch, int signo);
 839 extern void set_gdbarch_target_signal_from_host (struct gdbarch *gdbarch, gdbarch_target_signal_from_host_ftype *target_signal_from_host);
 840
 841 /* Signal translation: translate GDB's signal number into inferior's host
 842    signal number. */
 843
 844 typedef int (gdbarch_target_signal_to_host_ftype) (struct gdbarch *gdbarch, enum target_signal ts);
 845 extern int gdbarch_target_signal_to_host (struct gdbarch *gdbarch, enum target_signal ts);
 846 extern void set_gdbarch_target_signal_to_host (struct gdbarch *gdbarch, gdbarch_target_signal_to_host_ftype *target_signal_to_host);
 847
 848 /* Extra signal info inspection.
 849
 850    Return a type suitable to inspect extra signal information. */
 851
 852 extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
 853
 854 typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
 855 extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
 856 extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
 857
 858 /* Record architecture-specific information from the symbol table. */
 859
 860 extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
 861
 862 typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 863 extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
 864 extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
 865
 866 /* Function for the 'catch syscall' feature.
 867    Get architecture-specific system calls information from registers. */
 868
 869 extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
 870
 871 typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
 872 extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
 873 extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
 874
 875 /* True if the list of shared libraries is one and only for all
 876    processes, as opposed to a list of shared libraries per inferior.
 877    This usually means that all processes, although may or may not share
 878    an address space, will see the same set of symbols at the same
 879    addresses. */
 880
 881 extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
 882 extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
 883
 884 /* On some targets, even though each inferior has its own private
 885    address space, the debug interface takes care of making breakpoints
 886    visible to all address spaces automatically.  For such cases,
 887    this property should be set to true. */
 888
 889 extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
 890 extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
 891
 892 /* Definition for an unknown syscall, used basically in error-cases.  */
 893 #define UNKNOWN_SYSCALL (-1)
 894
 895 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 896
 897
 898 /* Mechanism for co-ordinating the selection of a specific
 899    architecture.
 900
 901    GDB targets (*-tdep.c) can register an interest in a specific
 902    architecture.  Other GDB components can register a need to maintain
 903    per-architecture data.
 904
 905    The mechanisms below ensures that there is only a loose connection
 906    between the set-architecture command and the various GDB
 907    components.  Each component can independently register their need
 908    to maintain architecture specific data with gdbarch.
 909
 910    Pragmatics:
 911
 912    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 913    didn't scale.
 914
 915    The more traditional mega-struct containing architecture specific
 916    data for all the various GDB components was also considered.  Since
 917    GDB is built from a variable number of (fairly independent)
 918    components it was determined that the global aproach was not
 919    applicable. */
 920
 921
 922 /* Register a new architectural family with GDB.
 923
 924    Register support for the specified ARCHITECTURE with GDB.  When
 925    gdbarch determines that the specified architecture has been
 926    selected, the corresponding INIT function is called.
 927
 928    --
 929
 930    The INIT function takes two parameters: INFO which contains the
 931    information available to gdbarch about the (possibly new)
 932    architecture; ARCHES which is a list of the previously created
 933    ``struct gdbarch'' for this architecture.
 934
 935    The INFO parameter is, as far as possible, be pre-initialized with
 936    information obtained from INFO.ABFD or the global defaults.
 937
 938    The ARCHES parameter is a linked list (sorted most recently used)
 939    of all the previously created architures for this architecture
 940    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 941    values from the previously selected architecture for this
 942    architecture family.
 943
 944    The INIT function shall return any of: NULL - indicating that it
 945    doesn't recognize the selected architecture; an existing ``struct
 946    gdbarch'' from the ARCHES list - indicating that the new
 947    architecture is just a synonym for an earlier architecture (see
 948    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 949    - that describes the selected architecture (see gdbarch_alloc()).
 950
 951    The DUMP_TDEP function shall print out all target specific values.
 952    Care should be taken to ensure that the function works in both the
 953    multi-arch and non- multi-arch cases. */
 954
 955 struct gdbarch_list
 956 {
 957   struct gdbarch *gdbarch;
 958   struct gdbarch_list *next;
 959 };
 960
 961 struct gdbarch_info
 962 {
 963   /* Use default: NULL (ZERO). */
 964   const struct bfd_arch_info *bfd_arch_info;
 965
 966   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 967   int byte_order;
 968
 969   int byte_order_for_code;
 970
 971   /* Use default: NULL (ZERO). */
 972   bfd *abfd;
 973
 974   /* Use default: NULL (ZERO). */
 975   struct gdbarch_tdep_info *tdep_info;
 976
 977   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 978   enum gdb_osabi osabi;
 979
 980   /* Use default: NULL (ZERO).  */
 981   const struct target_desc *target_desc;
 982 };
 983
 984 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 985 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 986
 987 /* DEPRECATED - use gdbarch_register() */
 988 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 989
 990 extern void gdbarch_register (enum bfd_architecture architecture,
 991                               gdbarch_init_ftype *,
 992                               gdbarch_dump_tdep_ftype *);
 993
 994
 995 /* Return a freshly allocated, NULL terminated, array of the valid
 996    architecture names.  Since architectures are registered during the
 997    _initialize phase this function only returns useful information
 998    once initialization has been completed. */
 999
1000 extern const char **gdbarch_printable_names (void);
1001
1002
1003 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1004    matches the information provided by INFO. */
1005
1006 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1007
1008
1009 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
1010    basic initialization using values obtained from the INFO and TDEP
1011    parameters.  set_gdbarch_*() functions are called to complete the
1012    initialization of the object. */
1013
1014 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1015
1016
1017 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
1018    It is assumed that the caller freeds the ``struct
1019    gdbarch_tdep''. */
1020
1021 extern void gdbarch_free (struct gdbarch *);
1022
1023
1024 /* Helper function.  Allocate memory from the ``struct gdbarch''
1025    obstack.  The memory is freed when the corresponding architecture
1026    is also freed.  */
1027
1028 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1029 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1030 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1031
1032
1033 /* Helper function. Force an update of the current architecture.
1034
1035    The actual architecture selected is determined by INFO, ``(gdb) set
1036    architecture'' et.al., the existing architecture and BFD's default
1037    architecture.  INFO should be initialized to zero and then selected
1038    fields should be updated.
1039
1040    Returns non-zero if the update succeeds */
1041
1042 extern int gdbarch_update_p (struct gdbarch_info info);
1043
1044
1045 /* Helper function.  Find an architecture matching info.
1046
1047    INFO should be initialized using gdbarch_info_init, relevant fields
1048    set, and then finished using gdbarch_info_fill.
1049
1050    Returns the corresponding architecture, or NULL if no matching
1051    architecture was found.  */
1052
1053 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1054
1055
1056 /* Helper function.  Set the global "target_gdbarch" to "gdbarch".
1057
1058    FIXME: kettenis/20031124: Of the functions that follow, only
1059    gdbarch_from_bfd is supposed to survive.  The others will
1060    dissappear since in the future GDB will (hopefully) be truly
1061    multi-arch.  However, for now we're still stuck with the concept of
1062    a single active architecture.  */
1063
1064 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1065
1066
1067 /* Register per-architecture data-pointer.
1068
1069    Reserve space for a per-architecture data-pointer.  An identifier
1070    for the reserved data-pointer is returned.  That identifer should
1071    be saved in a local static variable.
1072
1073    Memory for the per-architecture data shall be allocated using
1074    gdbarch_obstack_zalloc.  That memory will be deleted when the
1075    corresponding architecture object is deleted.
1076
1077    When a previously created architecture is re-selected, the
1078    per-architecture data-pointer for that previous architecture is
1079    restored.  INIT() is not re-called.
1080
1081    Multiple registrarants for any architecture are allowed (and
1082    strongly encouraged).  */
1083
1084 struct gdbarch_data;
1085
1086 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1087 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1088 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1089 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1090 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1091                                          struct gdbarch_data *data,
1092                                          void *pointer);
1093
1094 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1095
1096
1097 /* Set the dynamic target-system-dependent parameters (architecture,
1098    byte-order, ...) using information found in the BFD */
1099
1100 extern void set_gdbarch_from_file (bfd *);
1101
1102
1103 /* Initialize the current architecture to the "first" one we find on
1104    our list.  */
1105
1106 extern void initialize_current_architecture (void);
1107
1108 /* gdbarch trace variable */
1109 extern int gdbarch_debug;
1110
1111 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1112
1113 #endif