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